SAE International Datasheets for Standards and Technical Documents

Standards and technical documents includes standards, codes, regulation, handbooks, manuals, comprehensive guides and other formal publications. Standards, codes, and regulation establish uniform specifications, procedures or technical criteria.
Standards and Technical Documents: Learn more

Page: 1 2 3 4 5 6 7 8 10 20 30 40 50 60 100 112
Product Name Notes
1 The Closed-Loop A ir RE vitalisation S ystem ARES is a proof of technology Payload. The objective of ARES is to demonstrate with regenerative processes: the provision of the...
A belt driven Front End Accessory Drive (FEAD) is used to efficiently supply power to accessory components on automotive engines. The total energy absorbed by the FEAD consists of the...
A canister filled with activated carbon prevents the emission of hydrocarbon into the air, through repeated adsorption and desorption process. A small amount of hydrocarbon, with n-butane as one of...
A comprehensive multi-physics theoretical model of the solenoid valve used in an automobile transmission is constructed using the finite element method. The multi-physics model includes the coupled effects of electromagnetic,...
A computationally efficient engine model is developed based on an extended NO emission model and state-of-the-art soot model. The model predicts exhaust NO and soot emission for both conventional and...
A computer controlled steering system providing an artificial feel or synthetic torque feedback to the driver has recently been launched into production in the commercial vehicle market. This work compares...
A convenient way of modelling turbochargers is based on data maps. These models are easy to put into place, require low CPU charge and are control-oriented. Data relative to compressor...
A correlation study was performed between static wind tunnel testing and computational fluid dynamics (CFD) for a small hatchback vehicle, with the intent of evaluating a variety of different wheel...
A difficulty which exists when applying diagnostic techniques on large-scale diesel engines operating on the field, is that usually it is not possible to obtain measurement data at a wide...
A Distance Control Assist System (DCA) aiming at facilitating the driver maintaining a following distance to a lead vehicle in congested traffic was developed. The DCA imposes active force to...
A Dual Piston Variable Compression Ratio (VCR) engine has been newly developed. In order to ensure the strength of the Dual Piston, the design guidelines were established. There are two...
A dual piston Variable Compression Ratio (VCR) engine has been newly developed. This compact VCR system uses the inertia force and hydraulic pressure accompanying the reciprocating motion of the piston...
A field experiment was performed to measure the effects of oncoming illuminance profiles with different photometric and temporal characteristics on visual recovery and subjective discomfort. Target detection time was correlated...
A flash evaporation model is being developed to capture the effects of bubble nucleation and growth inside multi-hole injector nozzles to investigate the flash evaporation in fuel injector sprays in...
A hardening depth evaluation technique using eddy current has been developed, which can be applied to a mass production line for destructive (cutting) inspections. Using this technique, changes in the...
A key step in Model-Based Design is the deployment of an algorithm as machine code onto a target processor in the production vehicle. Modern software tools automatically generate the algorithmic...
A laboratory study was performed to assess the effects of SO 2 poisoning on the NO x conversion of iron (Fe) and copper (Cu) SCR catalysts. Thermally aged samples of...
A laboratory study was performed to optimize a zoned configuration of an iron (Fe) SCR catalyst and a copper (Cu) SCR catalyst in order to provide high NO x conversion...
A lightweight body sealer that cures at low temperatures was developed. In order to make the sealer lightweight, it is necessary to add light raw materials. In this development, the...
A method for detection of ethanol content in fuel for an engine equipped with direct injection (DI) is presented. The methodology is based on in-cylinder pressure measurements during the compression...
A multi-axial test device was designed to obtain the material properties of the lumbar spine in combined loading modes. The custom designed tester consists of a rigid platen driven by...
A multi-dimensional combustion code implementing the Conditional Moment Closure turbulent combustion model interfaced with a well-established RANS two-phase flow field solver has been employed to study a broad range of...
A multi-objective genetic algorithm coupled with the KIVA3V release 2 code was used to optimize the piston bowl geometry, spray targeting, and swirl ratio levels of a high speed direct...
A new approach is proposed for fault detection. It builds on using the relationships between sensor values on vehicles to detect deviating sensor readings and trends in the system performance.
A new hybrid transmission has been developed for New compact class vehicles. The development of this transmission has been aimed at improving fuel economy and achieving the weight reduction and...
A new measurement system for dummy movement and chassis deformation in crash tests overcomes the restriction of blind areas in the existing photo camera observation. An inertial platform technique with...
A new method is proposed for the analysis and design of multipulse three-phase rectifiers such as 12- and 18-pulse rectifiers. The method is based on describing the voltage transformation of...
A new multiple dc-inputs direct electric-power converter (D-EPC) has been developed. It is placed between multiple dc power sources and an ac motor, eliminating the need for a dc/dc converter...
A newly developed small-sized IES (inductive energy storage) circuit with semiconductor switch at turn-off action was successfully applied to an ignition system. This IES circuit can generate repetitive nanosecond pulse...
A novel nitride based coating system (BELCOAT-SS) was developed for the stamping dies for ultra high-tensile strength steel. It is characterized by an excellent wear resistance and low deposition temperature...
A number of alternative capacitor technologies have been studied and high-temperature extruded polymer film capacitors hold the promise to meet the critical needs for temperature, energy density, reliability, cost and...
A number of oxidation catalysts have been prepared using different types of advanced support materials such as ceria-zirconia, silica-titania, spinels and perovskites. Active metals such as Pd and Au-Pd were...
A numerical method specially designed to predict unsteady aerodynamics of road vehicle was developed based on unstructured Large-Eddy Simulation (LES) technique. The code was intensively optimized for the Earth Simulator...
A numerical study of a racecar front wing is presented. The focus of the study is to investigate the aerodynamics characteristics of a wing operating in a small ground clearance.
A physics-based control-oriented model is developed to dynamically predict cycle-to-cycle combustion timing in transient fueling conditions for Homogeneous Charge Compression Ignition (HCCI) engines. The model simulates the engine cycle from...
A piston in a diesel engine is subject to the high pressure and the high thermal load. The high structural reliability is required to the piston in the automotive diesel...
A planar temperature imaging diagnostic has been developed and applied to an investigation of naturally occurring thermal stratification in an HCCI engine. Natural thermal stratification is critical for high-load HCCI...
A previously developed Stochastic Reactor Model (SRM) is used to simulate combustion in a four cylinder in-line four-stroke naturally aspirated direct injection Spark Ignition (SI) engine modified to run in...
A promising SCR-only solution is presented to meet post-2010 NO x emission targets for heavy duty applications. The proposed concept is based on an engine from a EURO IV SCR...
A recent Gartner Dataquest study predicts that the total worldwide automotive semiconductor market will grow from $20.1 billion in 2007 to $25.9 billion by 2010. The study also predicts that...
A Reliability-Based Design Optimization (RBDO) method for multiple failure regions is presented. The method uses a Probabilistic Re-Analysis (PRRA) approach in conjunction with an approximate global metamodel with local refinements.
A Retractable Float System is being developed by Tigerfish Aviation as a retro fit to existing aircraft. The concept of the Retractable Float System is to fold the floats into...
A robust optimization approach has been applied to the design of a piezoelectric brake. The force generated by the piezoelectric actuator is transmitted to the pad shoe through a lever.
A set of five operationally-practi cal aerodynamic drag reduction devices have been developed for application to the trailer of a tractor-trailer vehicle. The devices have undergone extensive aerodynamic analysis, wind...
A spectroscopic trace gas sensor using a distributed feedback diode laser at \u03bb=1.53 μm and based on quartz enhanced photoacoustic spectroscopy technique is described. The sensor is capable of quasi-simultaneous...
A study was made to determine the effectiveness of low power wind energy harvesting for mobile applications. Experimental and simulated data has shown that harvesting of alternative energy resources is...
A study was performed to determine the fluid structure interaction (FSI) for a prototype truck hood for transient aerodynamic loads. The growing need to make vehicle panels lighter to enhance...
A transport equation residual model incorporating refined G-equation and detailed chemical kinetics combustion models has been developed and implemented in the ERC KIVA-3V release2 code for Gasoline Direct Injection (GDI)...
A tribometer, based on a pin-on-disc machine, uses a PZT drive to produce small sinusoidal fluctuations of sliding speed. The frequency and amplitude of these fluctuations can be controlled, and...
Accounting for more than 90% of the molecules and more than 75% of the mass [ 1 ], hydrogen is the most abundant element in the universe. Due to the...
Advanced chemistry batteries may help reduce weight and increase aircraft performance. Lithium Ion chemistries' high energy density enables 40% weight savings over existing baseline, Lead Acid and Nickel-Cadmium (Ni-Cd) batteries.
Advanced high strength steels (AHSS) are particularly attractive to automotive industry. Stamping AHSS parts, however, results in accelerated die wear problems which could emerge after few thousands of stampings. The...
Aerodynamic had played a primary role in high performance car since the late 1960s, when introduction of the first inverted wings appeared in some formulas. Race car aerodynamic optimisation is...
Aerodynamic noise generated in a miniature car had been evaluated using numerical simulation. Large Eddy Simulation (LES) was applied to analyze the transient flow field and the Ffowcs Williams-Hawkings (FW-H)...
Air Conditioning systems with reheat reduction based for energy efficiency have generally been implemented with either electronic variable compressors through active stroke control or with fixed displacement compressors through modifying...
Alcohol-related collisions cause numerous deaths and injuries. The purpose of this paper is to review the technological changes that could be made and are being made that could reduce rates...
Ambulances are largely exempt from crashworthiness and occupant protection passive safety design standards in the USA, and have a poor road safety record. This comparative evaluation of USA 'concept safety'...
An analytical procedure for the evaluation of the elasticplastic behavior of spot welded joints is presented. The procedure is based on a new theoretical model of spot weld region: a...
An electric vehicle model has been developed with four direct-drive in-wheel motors. A high-level vehicle stability controller is proposed, which uses the principles of fuzzy logic to determine the corrective...
An experimental investigation has been carried out to quantify the performance enhancements with a suction line heat exchanger (SLHX) in an AC system. An off-the shelf double pipe cross fluted...
An experimental investigation of combustion cycle-by-cycle stability under cold idling conditions has been carried out on a Dl diesel to examine the influence of pilot fuel injection strategy. The engine...
An experimental investigation of the minimum mileage between required brake adjustments is presented, for a particular vehicle configuration, fully loaded, on a defined route. To insure the results represented maximum...
An HPLC (High Performance Liquid Chromatography) method to measure the concentration of six organic acids in E-85 fuel has been developed. A three point calibration curve is established using standard...
An identification based approach to the design and implementation of a Kalman-filter feedback control method for the transient chassis dynamometer is presented. The requirements for torque controllers for high speed...
An increasing number of vehicular electronic control units (ECU) are equipped with reprogrammable flash memory. The software program in the flash memory determines the behavior of the ECU. The program...
An Intermittent Megawatt Generator (IMG) has been designed by Innovative Power Solutions (IPS) to meet the needs of future directed energy loads on high-performance aircraft. These loads significantly impact the...
An investigation was performed to identify the benefits of cooled exhaust gas recirculation (EGR) when applied to a potential ethanol flexible fuelled vehicle (eFFV) engine. The fuels investigated in this...
An LNT + SCR diesel aftertreatment system was developed in order to meet the 2010 US HD EPA on-road, and tier 4 US HD EPA off-road emission standards. This system...
An overview of aircraft DC power quality specifications reveals that only minor changes have occurred in recent years within industry standards. Current and future advanced electronic aircraft are requiring significant...
Analytical ferrography of used oils is most often associated with machine maintenance programs where it is used as a predictive tool to avoid catastrophic failures. The technique is not widely...
Angular contact ball bearings are the most commonly used types of bearings. Although simple in appearance, these bearings have a complicated and nonlinear behavior, and have significant effect on the...
Aqueous silver(I) is added at trace levels (0.1 - 1.0 mg/L) to spacecraft potable water as a biocide. Development of a method that can be deployed on orbit and in...
As accurate measuring of head accelerations is an important aspect in predicting head injury, it is important that the measuring sensor be well-coupled to the head. Various sensors and sensor...
As an alternative method to Statistical Energy Analysis (SEA), Energy Finite Element Method (EFEM) offers several unique advantages for vibro-acoustic analysis of structural-acoustic systems. In this paper, the theory of...
As new passenger cars are constantly getting cleaner, their contribution to air pollution is in large part defined by the in-use emissions degradation. In this respect, malfunctions in emissions-related components...
As on-highway heavy-duty diesel engine designs have evolved to meet tighter emission regulations, the crankcase environment for heavy-duty engine lubricants has become more challenging. The introduction of Exhaust Gas Recirculation...
As the complexity of current automobiles increases, new and innovative diagnostic methods for car maintenance and diagnostic inspection are greatly needed. This paper introduces a new diagnostic approach, which learns...
As the need for more advanced human modeling tools has grown, so has the focus on research and development with posture-prediction capabilities for the design and analysis of products, and...
At present Li-ion batteries are the premier rechargeable energy storage technology and they offer a promising future as a power source for high energy density battery applications. Unfortunately, their high...
Automotive fixed orifice tube (FOT) systems are especially prone to cycling losses due to their clutch cycling operation. Therefore, it is important to better understand the dynamics of the refrigerant...
Automotive manufacturers and engineers have paid attention to promoting engine performance with low emissions satisfying many emission regulations. With such goals in mind, we have investigated new cooling strategies such...
Automotive manufacturers continue to move further toward powertrain electrification. There are already many hybrid electric vehicles on the market that are based on a variety of system architectures. Ford Motor...
Automotive manufacturers often rely upon features such as automatic locking to enhance the security and crashworthiness of doors in rollover accidents. This can be verified in warnings conveyed to vehicle...
Automotive simulators offer an immersive environment to operate vehicle systems in a safe and repeatable manner. A fundamental question exists regarding their effectiveness for an identified task. For instance, driving...
Aviation has experienced one hundred years of evolution, resulting in the current air transportation system dominated by commercial airliners in a hub and spoke infrastructure. While the first fifty years...
Baffles are known to help reduce the amplitude of fluid slosh in partly filled tanks, particularly during braking and acceleration. The transient fluid slosh approach is proposed to evaluate the...
Based on the third generation of hydraulic engine mounts (HEMs), which has three types of hydraulic mechanisms such as inertia track, decoupler and disturbing plate, the influences of the three...
Beginning in 2007, heavy-duty engine manufacturers in the U.S. have been responsible for verifying the compliance of in-use vehicles with Not-to-Exceed (NTE) standards under the Heavy-Duty In-Use Testing Program (HDIUT).
Beginning in 2007, heavy-duty engine manufacturers in the U.S. have been responsible for verifying the compliance on in-use vehicles with Not-to-Exceed (NTE) standards under the Heavy-Duty In-Use Testing Program (HDIUT).
Biomechanical surrogates are used in various forms to study head impact response in automotive applications and for assessing helmet performance. Surrogate headforms include those from the National Operating Committee on...
Bosch Automotive Semiconductor Unit investigated destroyed semiconductor devices (ASIC) from electronic control unit complaints, which failed due to electrical overstress. It turned out that failure fingerprints could only be reproduced...
Characteristics analysis of hydraulically damped rubber mount (HDM) for vibration isolation in automotive powertrain is very important at the design and development stage of HDM. Fluid-structure interaction (FSI) between rubber...
Clemson University has recently partnered with the State of South Carolina, BMW, Michelin, Timken, and other partner companies to create new MS and PhD programs in Automotive Engineering. These academic...
Clutch actuation systems are complex systems where hydraulic, pneumatic, mechanical and electrical components are coupled. This paper presents a detailed clutch actuation model composed of components from multi-domains like mechanical...
Commercial vehicle manufacturers face unique challenges for the development of vehicle electronics systems. For one, customers typically have unique requirements coupled with an expectation of high reliability. Vehicle electronics is...
Compact heat exchangers are commonly used in diesel engines to reduce the temperature of recirculated exhaust gases, resulting in decreased NO x emissions. These exhaust gas recirculation (EGR) coolers experience...
Compact PCB power relays were tested in repetitious on/off operations to define their reliability through a quantitative analysis of failure cycles and an investigation of relay property changes and contact...
Corrosion is one of the main issues causing noise, vibration and harshness (NVH) in the wheel-end brake system. This paper describes the development of a sacrificial shield, mounted between the...
Dedicated Short Range Communication (DSRC) is increasingly being recognized as the protocol of choice for vehicle safety applications by Original Equipment Manufacturers (OEMs) and road operators. DSRC offers the ability...
Demands on loaded, rotating components, e.g., bearings, shafts & gears continue to escalate. Modern manufacturing strategies require improvements in traditional measurements and process control tools. Traditionally residual stress examination in...
Design of a light duty diesel for an automotive market presents contradictory challenges related to passenger car requirements for a compact, low weight design versus the diesel's base engine that...
Design optimization is an important engineering design activity. Performing design optimization in the presence of uncertainty has been an active area of research. The approaches used require modeling the random...
Despite the rapid progress in the development of autonomous vehicles, as seen in the DARPA Urban Challenge 2007, there has been very little emphasis on minimizing costs. Some teams spent...
Despite the recent trend toward increased use of Fly-By-Wire systems, conventional cable control systems remain a popular option for most general aviation aircraft, as they provide a reliable and economical...
Die-casting is an attractive method to produce near-net-shape metallic components. However, in such dies heat-checking is the most common die failure mechanism. To minimize this risk attention must be paid...
Diesel aftertreatment systems configured with a diesel oxidation catalyst (DOC) upstream of an urea selective catalytic reduction (SCR) catalyst run the risk of precious metal contamination. During active diesel particulate...
Diesel fuel injection control systems, which are one of the expected solutions for meeting emission regulations, and achieving economical fuel consumption, consist of many parameters. To optimize this system, we...
Diesel low-temperature combustion strategies often rely on early injection timing to allow sufficient fuel-ambient mixing to avoid NO x and soot-forming combustion. However, these early injection timings permit the spray...
Different EGR system layouts (a Long Route, a Short Route, and a combination of the two) were evaluated by means of both numerical simulation and experimental tests. In particular, a...
Digital filters are used in many automotive applications ranging from identification and conditioning of signals in an engine controller to digital radio receivers. Often these filters are implemented in fixed...
Disc brake squeal can be classified as a form of friction-induced vibration. The elimination of brake squeal noise is very important as the problem causes discomfort of the vehicle occupant...
Double-hole nozzle and multiple injections have the potential for better fuel atomization and mixing in DI engine. In order to evaluate the behavior of the spray for the double-hole nozzles...
Drilling compound hole is very common material processing operation in engineering industry. In this special machining process before drilling the hole the part is rotated about an auxiliary axis parallel...
Due to current economic conditions, aircraft companies of today are experiencing an increasing need for their fleets to maintain safe operation beyond their original design life. The result is a...
Due to the advancements in passenger car Diesel engine design, the contribution of transient emission spikes has become an important fraction of the total emissions during the standardized test cycles,...
Due to the increase of computer performance, modern screw design is more and more based on finite element analyses. Depending on the problem, different possibilities of modelling bolted joints are...
Due to the instabilities that may occur in power systems with regulated loads such as those used in military aircraft, ships, and terrestrial vehicles, many analysis techniques and design methodologies...
Due to the progression of environmental regulations, as they pertain to interior air quality, automakers and their respective supply-chain are considering current and future volatile organic compound (VOC) requirements of...
Due to the stringent requirements to reduce the tail pipe emissions of NO x , Selective Catalytic Reduction (SCR) systems are used to remove NO x using ammonia. When a...
During an ExtraVehicular Activity (EVA), both the heat generated by the astronaut's metabolism and that produced by the Portable Life Support System (PLSS) must be rejected to space. The heat...
During railway braking, dissipation of high energy due to friction leads to transient and localised thermal phenomena such as hot bands and hot spots. These localisation phenomena interact with third...
Electric parking brake (EPB) system provides the roomy space for vehicles compared with traditional handbrake system. Combining a control unit realizes the intelligent functions, which make vehicles more convenient and...
Electronic Control Modules (ECM) on Heavy Duty truck engines have the ability to control or monitor important engine and vehicle parameters. Examples of these parameters are fuel consumption, cruise control...
Electronic engine controls based on non-intrusive diagnostics can significantly help in complying with the stricter and stricter regulations on pollutants emissions and fuel consumption. The aim of this paper is...
Electronic Stability Control (ESC) has the potential of improving yaw stability and reducing the occurrence of a crash when a vehicle experiences a rear tire tread separation. Two instrumented 4-door,...
Emergence of fatty acid methyl esters (biodiesel) as a diesel fuel blend component, as well as fuel additization for management of mandated fuel sulfur reductions, have resulted in dramatic increases...
Engine control units (ECUs) on heavy trucks have been capable of storing "last stop" or "hard stop" data for some years. These data provide useful information to accident reconstruction personnel.
ERTS is a computer controlled golf car whose primary functional goal is autonomous real-world navigation . Its mission is to serve as a platform for collaborative research in diverse areas...
Estimates of the effectiveness of the high-hydrogen containing materials, sodium alanate and ammonia borane, are made by calculating dose and dose equivalent for the 1977 solar minimum and 1970 solar...
Ethanol has been gaining attention as a partial substitute in North American pump gasoline in amounts up to 85% ethanol and 15% gasoline, or what is commonly known as "E85".
Ethanol is commonly employed as a transportation fuel in Brazil. However, since pure ethanol's flash point is 12°C, flex-fuel vehicles marketed in Brazil are currently equipped with a redundant fuel...
Exhaust gas recirculation, fuel injection strategy and boost pressure are among the key enablers to attain low NOx and soot emissions simultaneously on modern diesel engines. In this work, the...
Exposure estimates inside space vehicles, surface habitats, and high altitude aircraft exposed to space radiation are highly influenced by secondary neutron production. The deterministic transport code HZETRN has been identified...
Facing the CO 2 emission reduction challenge, the combination of downsizing and turbocharging appears as one of the most promising solution for the development of high efficiency gasoline engines. In...
Failure Modes and Effects Analysis (FMEA) is a well established safety analysis technique used for the assessment of safety critical engineering systems in the automotive industry. Although FMEA has been...
Fatigue behavior of dissimilar Al/Fe spot friction welds between aluminum 6000 series alloy and coated steel sheets in lap-shear and cross-tension specimens is investigated based on experiments and three-dimensional finite...
Fatigue behavior of laser welds in lap-shear specimens of high strength low alloy (HSLA) steels is investigated based on a fatigue crack growth model. Fatigue experiments of laser welded lap-shear...
Field data is used to evaluate the number of light vehicle occupants injured or killed in side underride crashes with "combination trucks". Statistical analyses were performed of federal crash data...
Flax, which is known for its linens and oils that are used for industrial products, can also be utilized as a cost effective and environmentally acceptable approach to the creation...
Focus on sustained lunar operations and human exploration of Mars has become the National Aeronautical Space Administration 's (NASA) goal for the 21 2x century. NASA's objective is to provide...
For DC brush motors directly driven by 42V vehicle battery, carbon brush deterioration due to high voltage arc is a major factor to determine motor life [ 1 ]. The...
For more than 40 years NASA and other government space programs around the globe have been flying parabolic maneuvers in various aircraft to give astronauts and researchers brief periods of...
For over 20 years, automotive manufacturers have been harnessing the power of 3D to help create, optimize and produce great vehicles. Product Lifecycle Management (PLM) capabilities such as concurrent development,...
For some years, OEMs and suppliers have been using CAD tools to improve efficiencies in both mechanical design and electrical design. Modern CAD tools have evolved from simple drafting and...
For the estimation of life expectancy and dynamic fatigue of a machine, the overall load configuration of the typical application is of major importance. Regarding commercial vehicles, the load spectrum...
Forward Collision Warning (FCW) systems are intended to alert drivers when they may be at risk of a rear-end crash with a vehicle directly ahead unless they take immediate action.
From a quarter to one half of all projects that fail to meet their imperatives of cost, performance/quality or schedule are in some way associated with missing, poorly written or...
From the early beginning of space programs metallic Thermal Protection Systems (TPS) have been considered as promising technology to protect space vehicles against the severe aerodynamic heating encountered during re-entry...
From the viewpoint of protection of the global environment, reduction of CO 2 emissions are high-priority issues for vehicles, along with the demand for increased power performance. One of the...
Fuel additives are being used more frequently to meet "premium diesel fuel" requirements. Although these additives improve performance, they also affect the water separation characteristics. This program was designed to...
Fuel cell hybrid systems have emerged rapidly in efforts to reduce emissions. The success of these systems mainly depends on implementation of suitable control architectures. This paper presents a control...
Fuel consumption has been a core consideration since the beginning of the transportation era. These are reasons related to our environment, and to economics. In the competitive truck industry fuel...
Functional magnetic resonance imaging (fMRI) and functional near-infrared spectroscopy (fNIRS) were used to measure subjects' cerebral blood flow in order to investigate higher-order human brain function activity associated with cognition...
Given the increased use of programmable embedded electronic systems (PEES) in automotive applications and their vital importance, it is not only important for engineers to design PEES in such a...
Global acceptance and use of biofuels is growing rapidly in the transportation sector. Diminishing reserves of limited and costly fossil fuel resources and a growing realization that world peak oil...
Heavy trucks are involved in many accidents every year and Electronic Stability Control (ESC) is viewed as a means to help mitigate this problem. ESC systems are designed to reduce...
Heavy trucks can have the capability to record vehicle status and performance data. In many applications, this capability is intrinsic to the powerplant's electronic controls. However little information has been...
High Efficiency Clean Combustion (HECC) strategies such as homogenous charge compression ignition (HCCI) and pre-mixed charge compression ignition (PCCI) offer much promise for the reduction of NOx and PM from...
High level vacuum die casting (HLVD) allows the casting products heat treatable with aid of minimized gas contents (e.g. max 1cc/100gAl), therefore it shows improved mechanical properties. In order to...
High sensitivity and capacity thin film pressure sensors using the piezoresistive effect of ytterbium (Yb) thin films have been developed on metal plates using semiconductor manufacturing technology. The pressure sensors...
High technology, spark ignition direct injection (SIDI), engines are currently capable of achieving optimum horsepower and ULEV emissions levels. However, to meet the requirements of modern automotive powertrains, the task...
Homogeneous charge compression ignition (HCCI) engines have the potential for high fuel efficiency and low NO x emissions. The major disadvantage of HCCI remains the narrow operating range. One way...
Homogeneous Charge Compression Ignition (HCCI) has been shown as a promising technique for simultaneous NOx and soot reduction while maintaining diesel-like efficiency. Although HCCI has been shown to yield very...
Honda has succeeded in developing the new fuel cell (FC) vehicle designed into a dynamic, full-cabin sedan, the FCX Clarity, originating from the new V Flow FC platform. The key...
How can car designers evaluate device's position inside a car today? Today only subjective tests or "reachability" tests are made to assess if a generic user is able to reach...
Hydrotreating of vegetable oils or animal fats is an alternative process to esterification for producing biobased diesel fuels. Hydrotreated products are also called renewable diesel fuels. Hydrotreated vegetable oils (HVO)...
In early design phases vehicle safety testing has revealed the occurrence of both spot weld failure and sheet metal tearing that contributed to below specification performance. This would require redesign...
In modern aircraft development, effective stability and control analysis running parallel to the aircraft design is essential to the success of the manufacturer. Numerous aircraft manufacturers have had to spend...
In order to achieve the required future CO 2 reduction targets, significant further development of both gasoline and diesel engines is required. One of the main methods to achieve this...
In order to understand the flow and wind noise characteristics generated by the outside rearview (OSRV) mirror, a series of wind noise measurements for two production mirrors was conducted at...
In recent years more data is logged from the electronic control units on-board in commercial vehicles. Typically, the data is transferred from the vehicle at the workshop to a centralized...
In recent years, More-Electric and All-Electric Architectures are being adopted extensively for next generation of aircraft. In this new architecture, many systems rely primarily on the use of electrical energy.
In recent years, the temperature of automobile exhaust gas is on a rising trend due to lowering pollutant emissions and improving fuel economy, and exhaust gas temperature reaches as high...
In the agricultural production process the tractor still has a vital role. It moves, carries, and powers agricultural implements that carry out the actual tasks like tilling, seeding etc. The...
In the current study, thermoforming and compression analysis were carried out for the woven composite egg-box panel with the non-orthogonal constitutive material model, which is proposed by Xue et al...
In the frame of the multi-disciplinary programme MoMa-COUNT [ 2 ], multi-functional protections for human space exploration are being investigated, paying particular attention to flexible materials, selected also for their...
In the preliminary design phase of an aircraft, handbook methods are used to size the aircraft and to predict its aerodynamic characteristics and flight performances. For a new twin-boom pusher...
In the present paper a theoretical model for the analysis of compound crank axle is presented. It is based on the set of equilibrium, constitutive and congruence equations of the...
In the present study, two kinds of simplified vehicle models, which can reproduce flow structures around the two sedan-type vehicles in the previous study, are constructed for the object and...
In the Sabatier reactor, oxygen is recovered (as water) by hydrogenation of carbon dioxide. Half of the reacted hydrogen is contained within the product water, the other half forms methane...
In this article a new zero-dimensional model is presented for simulating the cylinder pressure in direct injection diesel engines. The model enables the representation of current combustion processes considering multiple...
In this paper a performance analysis of a Networked Control System ( NCS ) based in Controller Area Network ( CAN ) is presented. The analysis is done considering three...
In this paper the integrated control of front and rear active differentials with active front steering is investigated in order to improve dynamics, stability and to reduce the drawbacks of...
In this paper we study the nonlinear steady-state dynamic of a reduced finite element model of a brake system subjected to flutter instability. Both the pad and the disc are...
In this paper, the stress intensity factor solutions for spot welds in U-shape specimens are investigated by finite element analyses. Three-dimensional finite element models are developed for U-shape specimens to...
In this paper, various micromechanics models based on actual microstructures of DP steels are examined in order to determine the reasonable range of martensite volume fraction where the methodology described...
In this study fatigue tests of GMAW (Gas Metal Arc Welding) welded joints were conducted on both 1.6mm body sheet (DQSK-GA, DP590-GA, DP780-GI, and TRIP 780-GI) and 3.4mm frame materials...
In this study, high-temperature deactivation of a fully-formulated lean NO x trap (LNT) is investigated with an accelerated aging protocol where accelerated aging is accomplished by rapid temperature cycling and...
In this work the modal analysis of a three-wheeled tilting motorcycle is presented. This new kind of vehicle has two front wheels and a single rear wheel, but is driven...
In this work, a boosted single-cylinder spark ignition port-fuel injection optical engine was used for the experimental activity. Firstly, it was equipped with a four-valve head of a commercial turbocharged...
In this work, a model predictive functional control approach for automotive three-way catalyst oxygen storage state control is demonstrated on a Ford 2.0 liter I4 Duratec SI engine. The control...
In this work, a quasi-dimensional, multi-zone combustion model is analytically presented, for the prediction of performance and nitric oxide (NO) emissions of a homogeneous charge spark ignition (SI) engine, fueled...
In this work, heat loss was investigated in two different HCCI single cylinder engines. Thermocouples were adapted to the surfaces of the cylinder heads and the temperature oscillations were detected...
Inadvertent vehicle movement incidents, in which a vehicle rolls away after the driver has exited, may occur in automatic transmission vehicles as a result of environmental, vehicular, and/or driver factors.
Increasing injection pressures together with Diesel fuel lubricated Common Rail pumps replacing oil lubricated systems demand a more sophisticated investigation of robustness and durability against particle contamination of fuel. The...
Instrumented earplugs were first introduced in 2000 by the Air Force Research Lab as a means of measuring head accelerations in race car drivers after it was shown that instrumented...
Intake tuning is a widely recognized method for optimizing the performance of a naturally aspirated engine for motorsports applications. Wave resonance and Helmholtz theories are useful for predicting the impact...
Intermittent wiring faults are among the most frustrating, time consuming, and expensive problems to diagnose in electrical systems. These sporadic problems occur when wires are wet, vibrating, under pressure, or...
Internal combustion engine design is a complex operation in which a large quantity of variables must be considered. In industrial field, a new internal combustion engine project starts from the...
It is a well known fact that indicated efficiency of a SI engine at WOT is predominantly limited by knock occurrence. Therefore many investigations have been carried out to avoid...
It is difficult for a conventional robust control algorithm to assure the performance of a slip speed control system, because the plant (lockup system) includes the nonlinear characteristics of the...
It is well documented that the aerodynamic downforce that is developed by a NASCAR race car is degraded when closely following another car. This may lead to handling imbalance and...
It is well known that high ethanol content fuels have to face poor quality regarding startability in cold conditions on a spark ignited engine. This paper will show test results...
It is well known that lubricating oil consumption (LOC) is much affected by the cylinder bore deformation occurring within internal combustion engines. There are few analytical reports, however, of this...
It was reported that n-heptane and toluene blended fuels (NTL series fuels) showed the dual phase high temperature heat release (DP-HTHR) combustion in a previous SAE paper [ 1 ].
Knowledge mapping is a first and mandatory step in creation of system architecture. This paper considers the conceptual modeling of automotive systems, and discusses the creation of a knowledge-based model...
La 1-x A x Ni 1-y B y O 3 nanostructured perovskite-type oxides catalysts (where A = Na, K, Rb and B = Cu; x = 0, 0.2 and y...
Large trucks were involved in more than 26,000 crashes between April 2001 and December 2003 as a result of making lane changes, merges, and turns [ 1 ]. As an...
Launched on August 3, 2004, MESSENGER (MErcury Surface, Space ENvironment, GEochemistry, and Ranging) will be the first spacecraft to orbit the planet Mercury. Designed and built by The Johns Hopkins...
Light weight aerospace fastening collars were manufactured from 2099 alloy which is a new generation Al-Li alloy developed by Alcoa. The collars studied in this work are threaded self-locking collars...
Lithium-ion batteries provide high specific energy, high power capability and long term reliability when compared to other types of battery cell chemistries. In addition, they are effective in a diverse...
Low temperature combustion (LTC) strategies, which can mitigate emissions of particulate matter (PM) and nitrogen oxides (NO x ) from diesel engines, typically have longer ignition delays compared to conventional...
Low temperature combustion (LTC), though effective to reduce soot and oxides of nitrogen (NOx) simultaneously from diesel engines, operates in narrowly close to unstable regions. Adaptive control strategies are developed...
Low-cost lean NOx aftertreatment is one of the main challenges facing high-efficiency gasoline and diesel engines operating with lean mixtures. While there are many candidate technologies, they all offer tradeoffs.
Low-temperature combustion of diesel fuel was studied in a heavy-duty, single-cylinder, optical engine employing a 15-hole, dual-row, narrow-included-angl e nozzle (10 holes × 70° and 5 holes × 35°) with...
Many companies have successfully adopted Lean manufacturing as an operational philosophy, creating a universal understanding of value and waste which in turn provides significant advantages in the market. However, few...
Many efficient modeling methods have been developed for analyzing the effects of component-level variations and uncertainties on the system-level response of complex structures. However, relatively little work has addressed the...
Many experimental efforts to track fuel-air-residual mixture preparation in internal combustion engines have employed laser induced fluorescence (LIF) of tracers. Acetone and 3-pentanone are often chosen as tracers because of...
Many uncertainties exist in the sheet metal stamping such as the variation of incoming material properties, die and press setup conditions, long-term tool wear and degradations. They are interacting in...
Many vehicle and engine test studies have shown that the fuel efficiency of automobiles can be improved by reducing friction between moving parts. Typically, organic friction modifiers such as glycerol...
Measurement of particle number was introduced in the Euro 5/6 light duty vehicle emissions regulation. Although particle number measurement systems have to be calibrated by the manufacturers, labs have to...
Methyl esters of saturated/unsaturate d higher aliphatic acids (FAMEs) and a FAME of waste cooking oil (WCOME) were heated at 120°C in an air gas flow. The samples were analyzed...
Mg 96 Zn 2 Y 2 cast alloy is composed of an \u03b1 -Mg phase, Mg 12 ZnY phase and Mg 3 Zn 3 Y 2 phase. The coarse dendritic...
Model-based development of embedded automotive control software is characterized by the use of executable models throughout the entire development process. Modeling and simulation tools that are frequently used in this...
Model-based software development and automatic code generation have become increasingly established in recent years. The automotive industry has widely adopted and successfully deployed these methods in many different series production...
Modeling and simulation are commonly used in all stages of the design process. This is particularly vital to the success of systems engineering projects where the system under consideration is...
More and more stringent restrictions concerning the pollutant emissions of ICE ( Internal Combustion Engines ) constitute a major challenge for the automotive industry. New combustion strategies such as LTC...
Moving ground systems with rotating wheels have been used in wind tunnel tests during the last decades. Several studies on the effects of rotating wheels and the importance of wheel...
NASA's Constellation program has selected the closed cycle hydrogen oxygen Polymer Electrolyte Membrane (PEM) regenerative Fuel Cell (RFC) as its baseline solar energy storage system for the lunar outpost and...
Negative valve overlap (NVO) is a valve strategy employed to retain and recompress residual burned gases to assist HCCI combustion, particularly in the difficult regime of low-load operation. NVO allows...
New and unprecedented changes in customer demands, globalization, cost pressures, innovative product development strategies to shorten product development time, and changing external landscape with reduction of trade barriers, poses challenges...
New Generation Advanced Hydraulic-Mechanical Transmission (A-HMT) with the Lock-Up mechanism and the automatic start clutch mechanism was developed. In the lock-up mechanism, an electronic control in conjunction with transmission control...
Nissan began developing a fuel cell vehicle (FCV) in 1996 and has participated in fleet programs in the USA (CaFCP) and in Japan (JHFC) since 2001 to promote FCV development...
Nitrocarburizing is an economical surface hardening process and is proposed as an alternative heat treatment method to carbonitriding. The focus of this study is to compare the size and shape...
Noise generation in axial piston machines can be attributed to two main sources; fluid borne and structure borne. Any attempt towards noise reduction in axial piston machines should focus on...
Nowadays a great attention is paid to the level and quality of noise radiated from the tailpipe end of intake and exhaust systems, to control the gas dynamic noise emitted...
Objective: A friction rollover test was conducted as part of a rollover sensing project. This study evaluates vehicle and occupant responses in the test. Methods: A flat dolly carried a...
One essential feature of the 787 production system is the 747-400 Large Cargo Freighter (LCF), also known as the Dreamlifter, 2x and its ability to quickly and efficiently transport large...
One main challenge during the validation of automotive communication architectures is to consider the assembled system and more especially the interactions between the different components. We propose in this work...
One of the key coating layers that inhibits corrosion on modern automobiles is the pretreatment film. This layer, which is typically a tri-cationic zinc phosphate material, provides both corrosion protection...
One of the known causes of motor vehicle fires is hot surface ignition of combustible material that contacts engine exhaust system components. While ignition is a complicated phenomenon, the temperature...
One of the most common failure modes for a friction interface is the accumulation of glaze on the friction material surface. Until recently, our analysis of glaze chemistry has always...
One of the most significant manufacturability-cr iterions of a tubular component in bending and/or hydroforming operation is the formability limit of the selected tube material. Currently the most common tool...
One of the most significant tasks in automotive design is related to the implementation of gearboxes capable of reducing the torque gap during the gearshift process and, at the same...
One popular complement to track testing that successful race teams use to better understand their vehicle's behavior is dynamic shaker rig testing, such as 7-post and 8-post testing. Compared to...
One popular complement to track testing that successful race teams use to better understand their vehicle's behavior is dynamic shaker rig testing. Compared to track testing, rig testing is more...
Operator error is a primary cause of vehicle accidents, yet human ingenuity is critical to effectively react in situations automation is not prepared to handle. Human operators have always been...
Over the last decade large safety improvements have been made in crash protection for stock car racing drivers. It has been well established that in side and rear impacts the...
Phase change materials (PCMs) are extensively used in many engineering areas for thermal management purposes. This paper investigated the application of PCMs for vehicular systems, especially for the thermal protection...
Pollutants are a major issue of diesel engines, with oxides of nitrogen (NOx) and airborne total particulate matter (TPM) of primary concern. Current emission standards rely on laboratory testing using...
Polymers are one of the major constituents in electrical components. A study investigating pre-combustion off-gassing and particle release by polymeric materials over a range of temperatures can provide an understanding...
Premixed Charge Compression Ignition (PCCI), a Low Temperature Combustion (LTC) strategy for diesel engines is of increasing interest due to its potential to simultaneously reduce soot and NO x emissions.
Presented here are analyses and statistical summaries of data collected from 11,299 flight operations recorded on 6 BE-1900D aircraft during routine commuter service over a period of three years. Basic...
Previous literature has shown that serious neck injury can occur during rollover events, even for restrained occupants, when the occupant's head contacts the vehicle interior during a roof-to-ground impact or...
Provision of service information in various languages has been a must in the automotive industry. However, in the commercial vehicle industry, it is unclear how manufacturers are managing this daunting...
Purpose: This study analyzes the effect of front seat performance on occupant injury in rear crashes where there is a 2nd row passenger seated behind the front occupant. Methods: The...
Raising interest in Diesel powered passenger cars in the United States in combination with the government mandated policy to reduce dependency of foreign oil, leads to the desire of operating...
Recent surveys show that the number one issues in car electronics are cost reduction and better collaboration across the complex automotive design chain of IP providers, semiconductor providers, subsystem suppliers...
Recently built or refurbished wind tunnel facilities show a trend towards a detailed simulation of road conditions. Therefore, these wind tunnel facilities are equipped with boundary layer conditioning systems and...
Recently, emission regulations have been strict in many countries, and it is very difficult technical issue to reduce emissions of diesel cars. In order to reduce the emissions, various combustion...
Repeatabilities of PM measurements on a heavy-duty diesel engine equipped with a diesel particulate filter (DPF) using a filter weighing method and a number counting method with a full flow...
Research has been conducted to use an interconnection inverter for a stand-alone generator with an aim to provide a small gas engine cogeneration system with a backup function to serve...
Research was conducted on cold startability with a focus on the vaporization characteristics of ethanol blended fuel (E85). Cold startability was tested with a conventional gasoline engine with standard calibration...
Rheological and tribological properties of a model lubricant consisting of a two-component liquid crystal, mixtures of Sudan Black B (dye) and 4-cyano-4\u2032hexyl biphenyl (6CB, liquid crystal), nano-films confined between mica...
Rubber O-rings installed in hydrogen tanks for fuel cell electric vehicles are repeatedly exposed to high pressure hydrogen gas. Exposure to high pressure gas sometimes causes cracks as a result...
Safety is a requirement concerning an increasing number of automotive applications. Recent safety standards set requirements for designing safety-critical systems. Among others, these specifications include a comprehensive detection and handling...
Safety-related systems in road vehicles are subject to hazard analysis as part of developing their safety requirements. Automotive hazard analysis leads to a requirement for target risk reduction in the...
Saft is working on advanced 28V Li-ion batteries for use in NAVY unmanned aircraft applications. This battery employs seven (7) prismatic state-of-the art Li-ion cells connected in series. The battery...
Selecting a proper implementation method for software timers in automotive body control applications is one of the crucial steps in the process of software development. We found it particularly true...
Selective Catalytic Reduction (SCR) catalysts have been demonstrated as effective for controlling NOx emissions from diesel engines, maintaining high NOx conversion even after the extended high temperature exposure encountered in...
Selective Catalytic Reduction (SCR) catalysts have been designed to reduce NOx with the assistance of an ammonia-based reductant. Diesel Particulate Filters (DPF) have been designed to trap and eventually oxidize...
Several configurations of truck tractor sleeper cabs were tested and modeled to investigate the potential to reduce heating and cooling loads. Two trucks were tested outdoors and a third was...
Shadowgraph/schliere n imaging techniques have often been used for flow visualization of reacting and non-reacting systems. In this paper we show that high-speed shadowgraph visualization in a high-pressure chamber can...
Simultaneous low NOx (< 0.15 g/kWh) & soot (< 0.01 g/kWh) are attainable for enhanced premixed combustion that may lead to higher levels of hydrocarbons and carbon monoxide emissions as...
Since 1992, Toyota Motor Corporation (TMC) has been working on the development of fuel cell system technology. TMC is designing principal components in-house, including fuel cell stacks, high-pressure hydrogen storage...
Smart Touch 2x sensing is a breakthrough in human interface technology allowing direct access to computer power, such as with the highly successful iPhone\u2122 and other handheld devices. By combining...
Societal demands of recent years have increasingly pressured the development of greener technologies in all sectors of the nation's transportation infrastructure, including that of civilian aviation. This study explores the...
Software has rapidly gained importance as a driver for innovation in automobiles. Since many safety-related automotive systems make intensive use of software, the upcoming ISO 26262 poses several requirements addressing...
Solar Orbiter is the next solar-heliospheric mission in the Science Programme of ESA. The mission will provide the next major step forward in the exploration of the Sun and the...
Solar proton events (SPEs) represent the single-most significant source of acute radiation exposure during space missions. Historically, an exponential in rigidity (particle momentum) fit has been used to express the...
Solid Oxide Electrolysis with an embedded Sabatier reactor is being developed for regenerative air revitalization. In a previous effort, an embedded Sabatier reactor was demonstrated using a nickel-based electrode in...
Some of the engine components are connected both to the chassis and to the engine. These parts are subject to vibrational loads coming from the road and the engine. Engine...
Stable isotopic tracer in combination with TOF-SIMS (time-of-flight secondary ion mass spectroscopy) is proposed as a versatile tool for investigation of tribo-chemistry. This unique technique is based on tracing 2H...
Studies used 1981-2006 FARS and state crash data to examine the relative importance of vehicular, driver, and environmental factors in influencing odds of driver fatality in two-vehicle (car-to-car, light truck-to-car,...
Subject of this work is a simulation model for PCCI combustion that can be used in closed-loop control development. A detailed multi-zone chemistry model for the high-pressure part of the...
Subject of this work is the recently introduced extended R epresentative I nteractive F lamelet (RIF) model for multiple injections. First, the two-dimensional laminar flamelet equations, which can describe the...
Suspension kinematic parameters such as camber, caster and king-pin angles as well as track width are important in improving handling performance and stability of a vehicle. Using a new model...
Technical Standard
Technological development of materials derived from plants (e.g., polylactic acid (PLA), and the like) is required to break dependence on fossil fuels and reduce CO 2 . PLA has inferior...
The ability to make fully resolved turbulent scalar field measurements has been demonstrated in an internal combustion engine using one-dimensional fluorobenzene fluorescence measurements. Data were acquired during the intake stroke...
The addition of molybdenum dithiocarbamate (MoDTC) to engine oil improves the fuel consumption of vehicles. However, this is also widely known to cause deposit accretion in the Thermo-Oxidation Engine Oil...
The Advanced Crash Avoidance Technologies (ACAT) program initiated by the National Highway Safety Administration had two major objectives. These were to develop a standardized Safety Impact Methodology (SIM) tool to...
The aim of this study is to gain a better understanding of the mechanism of knocking with respect to flame propagation behavior based on 3D simulations conducted with the Universal...
The aim of this work is to improve the performance of a racing motorcycle by means of gearbox tuning. The Optimal Maneuver Method , which essentially simulates an ideal driver...
The air brake system has been widely used since its great superiority over many other kinds of brake systems, but the capacity and the stability of air brake system are...
The auto industry has had decades of experience with designing safe vehicles. The introduction of highly integrated features brings new challenges that require innovative adaptations of existing safety methodologies and...
The basis for the analysis of friction in brake systems is the brake pad's tribological interface. An investigation of this interface reveals friction intensive surface structures, so-called 'patches'. Their development...
The basis for this analysis was NASS/CDS 1997 to 2006. In the NASS database there were 60 cases with major fires in side impact crashes, 37 of which were in...
The basis for this paper is associated with off brake disc thickness variation (DTV) generation. This paper focuses on an experimental methodology developed to determine the rotor wear rate given...
The buildup of deposits in EGR coolers causes significant degradation in heat transfer performance, often on the order of 20-30%. Deposits also increase pressure drop across coolers and thus may...
The concept of two closely spaced micro-orifices (group hole nozzle) has been studied as a promising technology for the reduction of soot emission from direct injection (DI) diesel engines by...
The conventional approach for simulating external flow field over an automobile is to use body fitted (BF) mesh. However, depending on the geometrical complexity of the boundaries, grid generation and...
The crash recorder is an important data gathering device in motorsports. Since the introduction of crash recording in Indy Cars in 1993, the data gathered has been critical in developing...
The demand of fulfilling the increasing requirements to shorten development lead times force suppliers to enhance modularity and flexible applicability of their machinery component portfolio. The presented examples show how...
The design of a cost-effective SIL3/ASILD-compliant failsafe computer control system is a great challenge because of the requirements of IEC 61508 and/or ISO CD 26262. In this paper the formal...
The design of compact and lightweight power transmission devices was studied for specialized high power applications, including airborne with operating voltage fixed at 270 Volts and less than 30 meter...
The development of a modern transportation product requires that the safety of the product be considered at every stage of its life, from initial design to ultimate product disposal. Virtually...
The development of a new Nitric Oxide (NO x ) reaction mechanism has been conducted by adding species, including hydrogen cyanide (HCN) and the CH radical to a reduced chemistry...
The development of an automatic defogging system using an accurate windshield humidity sensor and the existing HVAC hardware is described herein. Improved cabin temperature control and forward visibility for the...
The development of energy-saving technologies is in great demand recently to stop global warming. We are committed to developing the Ejector Cycle as an energy-saving technology for refrigerating air conditioners.
The door closing effort is a quality issue concerning both automobile designers and customers. This paper describes an Excel based mathematical model for predicting the side door closing effort in...
The drag reduction device of a bluff-body was developed by slanting the rear underbody as a hip-up shape and adding flaps to the rear-end. The experiments were conducted in an...
The drilling process is currently applied for bolt or rivet assembly of composite structures. As for metallic structures, the twist drill is the most commonly used cutter. At the hole...
The effect of cavitation plays a fundamental role in the hydraulic components design and the capability of predicting its causes and characteristics is fundamental for the optimization of fluid systems.
The effect of the ring pack storage mechanism on the hydrocarbon (HC) emissions from an air-cooled utility engine has been studied using a simplified ring pack model. Tests were performed...
The effect that thermally and compositionally stratified flowfields have on the spatial progression of iso-octane-fueled homogeneous charge compression ignition (HCCI) combustion were directly observed using highspeed chemiluminescence imaging. The stratified...
The effects of combining premixed, low temperature combustion (LTC) with biodiesel are relatively unknown to this point. This mode allows simultaneously low soot and NO x emissions by using high...
The electrical and mechanical failures (such as bearing and winding failures) combine to cause premature failures of the generators, which become a flight safety issue forcing the crew to land...
The Energy Finite Element Analysis (EFEA) has been developed for computing the structural vibration and the interior noise level of complex structural-acoustic systems by solving governing differential equations with energy...
The fatigue behavior of Hilok fastener joints under constant amplitude loading has been investigated experimentally. The effects of load transfer in an unbalanced joint configuration was characterized in terms of...
The flame front propagation in normal and abnormal combustion was investigated. Cycle-resolved flame emission imaging was applied in the combustion chamber of a port fuel injection boosted spark ignition engine.
The focus of this paper is an air charge estimator for engine control system applications which do not feature a mass air flow (MAF) sensor. The proposed approach, beyond its...
The frequency response of steering effort torque changes according to the influence of vehicle dynamics. To help enhance feel, a new electronic power steering (EPS) control has been constructed. As...
The Friction Stir Spot Welding (FSSW) process is a derivative of the friction stir welding (FSW) process, without lateral movement of the tool during the welding process. It has been...
The frictional behaviour at the pad-disc interface has been simulated on the nanometer scale with the aid of the method of Movable Cellular Automata (MCA). The boundary conditions of the...
The full vehicle simulation on durability proving grounds is a well established technique in the development process of passenger car manufacturers. The respective road surfaces are designed to generate representative...
The G-equation model was implemented in the commercial code ANSYS CFX and validated against experimental data in order to successfully simulate turbulent premixed combustion in internal combustion engines. The model...
The goal of this paper is to advance rollover crash reconstruction techniques beyond the assumption typically made that a rolling vehicle decelerates at a constant rate. The paper presents and...
The goal of this paper is to delineate recent experimental evidence that the presence of conforming surface wear groove tends to stabilize the vibration and noise response of aircraft brakes.
The goal of this research is to investigate the physical parameters of stoichiometric operation of a diesel engine under a light load operating condition (6\u223c7 bar IMEP). This paper focuses...
The handling and braking responses of a heavy vehicle equipped with a cross-axle fluidically-coupled hydro-pneumatic suspension concept are investigated. The proposed fluidically-coupled suspension is conceived by diagonally interconnecting different hydraulic...
The Indy Racing League (IRL) continuously strives to improve safety for drivers of open wheel racecars. As part of a comprehensive engineering effort, the IRL carefully investigates crashes that occur...
The influence of fuel rail pressure (FRP) and urea-selective catalytic reduction (SCR) on particulate matter (PM) formation is investigated in this paper along with notes regarding the NOx and other...
The International Space Station (ISS) currently provides human waste collection and hygiene facilities in the Russian Segment Service Module (SM) which supports a three person crew. An additional set of...
The introduction of CO 2 -reduction technologies like Start-Stop or the Hybrid-Powertrain and the future emissions regulations require a detailed optimization of the engine start-up. The combustion concept development as...
The Johnson Space Center Water and Food Analytical Laboratory (WAFAL) performed detailed ground-based analyses of archival water samples for verification of the chemical quality of the International Space Station (ISS)...
The Lightweight Contingency Water Recovery System (LWC-WRS) harvests water from various sources in or around the Orion spacecraft in order to provide contingency water at a substantial mass savings when...
The lost foam casting process (LFCP) is a near-net shape casting process. This process is the most energy efficient casting process available. "Foundry Management and Technology" magazine analyzed the lost...
The maintenance of cabin air-quality aboard spacecraft requires a proper balance of contamination generation and removal, and environmental monitoring. Achieving this balance is paramount to a spacecraft's ability to sustain...
The mechanism of noise production in engine accessory drive belts was discussed. Applying geometric considerations to the transversal vibration of the belt, which is one cause of belt noise, the...
The Moon Mineralogy Mapper (M3) instrument is one in a suite of twelve instruments which will fly onboard the Indian Chandrayaan-1 spacecraft scheduled for launch in 2008. Chandrayaan-1 is India's...
The most common trigger for event data collection in Heavy Vehicle 2x ECMs is a sudden decrease in the calculated vehicle speed. The calculated vehicle speed is a by-product of...
The movement to more-electric architectures during the past decade in military and commercial airborne systems continues to increase the complexity of designing and specifying the electric power system. In particular,...
The new materials and material combinations such as composites and titanium combinations used on today's new airplanes are proving to be very challenging when drilling holes during manufacturing and assembly...
The objective of the paper is to characterize the diesel spray under the ambient conditions relevant for direct injection (D.I.) diesel engines. The particular emphasis is on the comparisons between...
The objective of the study was to quantify styrene and hexanol generated during the baking of a model sweetpotato bread (SPB) using three different sorbent based tubes. Volatiles were trapped...
The objective of this investigation is to optimize light-duty diesel engine operating parameters using Adaptive Injection Strategies (AIS) for optimal fuel preparation. A multi-dimensional Computational Fluid Dynamics (CFD) code with...
The objective of this paper is to devise innovative lightweight design concepts for heavy vehicle structures. A 1 to 4 prototype of a trailer was built to assess the feasibility...
The objective of this project was to replace electromechanical power line contactors with a Static Transfer Switch (STS) to improve the transfer of electrical power between aircraft generators and decrease...
The objective of this research is a detailed investigation of multiple injections in a highly-dilute diesel low temperature combustion (LTC) regime. This research concentrates on understanding the performance and emissions...
The objective of this research is a detailed investigation of unburned hydrocarbon (UHC) in a highly-dilute diesel low temperature combustion (LTC) regime. This research concentrates on understanding the mechanisms that...
The one-dimensional (1D) modeling of a turbocharged engine requires the availability of the turbine and compressor characteristic maps. This leads to two main problems: performance maps of the turbocharger device...
The Orion Crew and Service Modules are often compared to the Apollo Command and Service Modules due to their similarity in basic mission objective: both were dedicated to getting a...
The Orion crew module (CM) is being designed to perform survivable land and water landings. There are many issues associated with post-landing crew survival. In general, the most challenging of...
The paper addresses the characterization of global burn rates for gasoline fueled internal combustion engines applying direct injection and mixture stratification. Effects of variations in engine speed and load as...
The paper covers the NO x performance evaluation of an LNT + SCR system designed to meet the 2010 on-highway heavy-duty (HD) US EPA emission standards. The system combines a...
The paper describes a 'virtual motorsports' event developed by the University of Windsor Vehicle Dynamics and Control Research Group. The event was a competitive project-based component of a Vehicle Dynamics...
The paper describes a closed-loop vehicle simulation environment developed to support a virtual vehicle design and testing methodology, proposed for the University of Windsor Formula SAE team. Virtual prototyping and...
The paper presents a study on the prediction of wear for systems in which progressive wear affects the operating conditions responsible for the wear. A simple slider-crank mechanism with wear...
The paper reports on a combined experimental and numerical investigation of the aero-thermal behavior of a vented automotive brake disc. The aim is to assess to which extent nowadays available...
The paper reviews the development and optimization of a SI high performance engine, to be used in Formula SAE/Student competitions. The base engine is a single cylinder Yamaha 660cc motorcycle...
The physical 1-D model of a radial turbine consists of a set of gas ducts featuring total pressure and/or temperature changes and losses. Therefore, the wave propagation and filling/emptying plays...
The piezoelectric cylinder pressure transducer is ubiquitous for developing and optimizing the combustion process in modern internal combustion engines. Over the past three decades, significant advances in cylinder pressure transducer...
The power and thermal management system (PTMS) developed by Honeywell for aircraft is an integral approach combining the functions of the auxiliary power unit (APU), emergency power unit (EPU), environmental...
The pressure of the combustion gas in a diesel engine is higher than that in a gasoline engine, so the cylinder head gasket that seals the combustion chamber is exposed...
The pretreatment of aluminum sheet material in preparation for further paint application can be challenging due to the presence of a thick oxide layer. The composition of the oxide layer...
The primary coating layer that inhibits salt spray induced corrosion on vehicle bodies is electrocoat. The application of electrocoat involves the electrodeposition of a polymer film on all metallic components...
The properties sought in a multi-layer steel cylinder head gasket include cylinder pressure sealing and fatigue strength in order for there to be no damage while the engine is in...
The purpose of this paper is to clarify the vibration properties of the extended expansion engine with a multiple linkage system. The mass systems were used to obtain a substitution...
The purpose of this paper is to compare classical handbook methods used to predict performance parameters such as range and endurance to computer based methods. Three different methods are compared:...
The purpose of this paper is to present the results of hot surface ignition (HSI) testing and American Society for Testing and Materials (ASTM) auto-ignition testing (AIT) performed on gasoline...
The purpose of this research is to develop a prediction technique that can be used in the development of port fuel-injection (hereinafter called PFI) gasoline engines, especially for general purpose...
The purpose of this study is to investigate the effects on the engine's efficiency and exhaust gas emissions by the use of ethanol/gasoline blends in conventional technology vehicles. The fuels...
The reliability of engine valve springs is a very important issue from the point of view of warranty. This paper presents a combined experimental and statistical analysis for predicting the...
The research described examines the relationship between damage/repair scenarios and the resulting effect on the coupled response of the structure. The monocoque is simplified as a box beam and damage...
The results of a traffic crash reconstruction often include vehicle speeds to address causation and changes in velocity to indicate crash severity. Since these results are related, they should be...
The results of automatic X-ray inspection of cast parts rely heavily on the quality of the imaging components. Flat panel detectors suffer from a number of flaws, the most serious...
The rising cost of fuel, global warming and the economy in general has increased awareness about the importance of vehicle weight as it relates to consumer cost savings at the...
The SAE Fuel Cell Vehicle (FCV) Safety Working Group has been addressing FCV safety for over 9 years. The initial document, SAE J2578, was published in 2002. SAE J2578 has...
The seatbelt system, originally designed for protecting occupants in frontal crashes, has been reported to be inadequate for preventing occupant head-to-roof contact during rollover crashes. To improve the effectiveness of...
The second-generation air-fuel ratio control method has been developed to reduce exhaust gas emissions in accordance with the improvements in catalysts. The control system consists of a feedforward control using...
The Sublimator Driven Coldplate is a unique piece of thermal control hardware that has several advantages over a traditional thermal control scheme. The principal advantage is the possible elimination of...
The survey we are going to present comes from the request to optimize an industrial product pre-assembly chain. Considering the good results we obtained, we've built up a methodology and...
The Swift mission Burst Alert Telescope (BAT) Detector Array thermal control system includes two propylene loop heat pipes (LHPs), eight ammonia constant conductance heat pipes (CCHPs), a radiator that has...
The thick oxide layer of silicon-on-insulator (SOI) devices significantly reduces the junction leakage current at elevated temperatures compared to similar Si devices, resulting in an elevated maximum operating temperature. The...
The time reduction of the vehicle design and creation process is an important key to reduce development costs. Modern CAD systems offer a wide range of possibilities, not only in...
The transfer function required to control an electrically assisted steering gear is identified using a modified FIR filtering approach. The topology of the electrically assisted steering gear is described. The...
The two-dimensional, frictional tyre-road contact interaction is investigated. A transient contact algorithm is developed, consisting of an analytical belt model, a non linear sidewall structure and a discretized viscoelastic tread...
The unsteady environment road vehicles are exposed to is subject of many investigations that are currently made. Yet, the approaching flow is only one aspect of unsteady forces acting on...
The upcoming Euro VI emission legislation for Heavy Duty Diesel engines can be complied with by using a combination of a wall flow DPF and a UREA SCR-system. This paper...
The use of direct injection (DI) of a second fuel, ethanol or methanol (or their concentrated blends), is explored, via simulation, as a means of avoiding knock in turbocharged, high...
The use of high levels of EGR has been documented to increase fuel efficiency and reduce emissions of spark ignition engines [ 1 - 5 ]. However, these engines typically...
The use of hydroforming technique is commonly used for the manufacturing of BIW, chassis and suspension components. For low weight and cost effective solutions it is also finding application in...
The vibration characteristics of the shock absorber in the dynamic condition differ from the "quasi-static" characteristics. For analysis of the processes occurring in the shock absorber, measurements were carried out...
The wax has been developed that is able to protect vehicle bodies from corrosion for extended periods. Vehicle bodies, composed mainly of steel components, are prone to corrosion, in particular...
The world's first six-speed automatic transmission for passenger cars was introduced to the market by ZF in 2001. The 6HP-family is based on a Lepelletier planetary gear set. An advanced...
There are 30 million people in remote, rural communities in China without access to electricity. The government of China has initiated an ongoing effort to provide constant, reliable power to...
There was concern that a variable compression ratio engine fitted with a multi-link mechanism might produce louder booming noise due to the inertial forces caused by the lateral swing of...
This paper addresses the development of a novel technology to simultaneously reduce total organic carbon (TOC) and microbial count (MC) in biological water processor (BWP) processed water. This approach also...
This paper addresses the issue of driving while drowsy and proposes a passive eye monitoring-based driver eye closure recognition system. It reviews the core algorithmic building blocks of this system...
This paper analyzes the potential benefit of a model based DPF leakage monitor over a conventional DPF leakage monitor that checks pressure drop after a complete regeneration. We analyze the...
This paper compares the follower profiles of transportation industry personnel with other industry groups, principally engineers and DOD personnel. In compiling the comparison, Chaleff's courageous follower behaviors are used to...
This paper deals with an analysis of the potential of the Rankine cycle as an additional power generation process, which uses the waste heat of a car engine. A review...
This paper deals with the analysis of the handling behaviour of a novel three-wheeled motorcycle. This vehicle has two front steering wheels and a single rear wheel and can be...
This paper described implementation of a selectable one-way clutch in the GM's RWD 6-speed automatic transmission [ 1 ] content to replace the current one-way clutch and low/reverse plate clutch.
This paper describes a computational and experimental effort to document the detailed flow field around a pickup truck. The major objective was to benchmark several different computational approaches through a...
This paper describes a diesel engine lean NOx trap (LNT) regeneration air to fuel ratio (AFR) control system using a nonlinear model predictive control (NMPC) technique for simultaneous regeneration fuel...
This paper describes a driving control algorithm based on skid steering for a Robotic Vehicle with Articulated Suspension (RVAS). The driving control algorithm consists of four parts; speed controller for...
This paper describes a Magneto-Rheological coupling based Hydraulic Power Steering (MRHPS) system developed for improving fuel economy in conventional vehicles. The MRHPS system reduces the parasitic losses associated with the...
This paper describes a novel time-varying prognostic modeling framework for computing condition-based residual life distributions of partially degraded aircraft electrical power system (EPS) components. This advanced methodology is suitable for...
This paper describes a SiC based stackable DC/DC converter system capable of operating at high temperature. The system is capable of fault tolerance and complex power management. These functions require...
This paper describes the composition of the light-duty automotive fleet leading to 2020 and how it differs from today's fleet. The most likely scenario for the fleet of 2020 is...
This paper describes the design and implementation of the SEA, Ltd. Brake and Throttle Robot (BTR). Presented are the criteria used in the initial design and the development and testing...
This paper describes the development of a lead free, high temperature ceramic capacitor material having the base composition of (Na 0.5 Bi 0.5 ) TiO 3 . The goal is...
This paper describes the porous materials FE modeling scheme inside vehicle cabin using measured acoustic impedances to reduce the size of the matrices of the FE model while keeping the...
This paper describes the results of a project to develop a MADYMO occupant model for predicting thoracolumbar (TL) spine injuries during frontal impacts in the Indianapolis-type racing car (ITRC) environment...
This paper discusses the effects of changes in specimen geometry, stress gradient, and residual stresses on fully-reversed constant amplitude uniaxial fatigue behavior of a medium carbon steel. Axial fatigue tests...
This paper discusses the physics of development of electrical defects as the result of wire chafing, and how this can be used to extend the prognostics capability of GE's Smartwire...
This paper discusses the poisoning of a selective catalytic reduction (SCR) catalyst by trace levels of platinum originating from an upstream diesel oxidation catalyst (DOC). A diesel aftertreatment system consisting...
This paper discusses the problem of obtaining electric machines (EM) for advanced electric drives (AED) used in more electric architecture (MEA) applicable to aircraft, spacecraft, and military ground vehicles. The...
This paper discusses the process development and implementation of an Electric Boring process for boring the Frame Lug for the Main Landing Gear (MLG) Swing Link bushing on the 777...
This paper discusses the unique aspects of fire suppression in reduced (micro- and Lunar/martian) gravity environments. It builds on a trade study conducted by the Fire Prevention Detection and Suppression...
This paper documents a simple theoretical analysis and an experimental performance comparison of the advantages of an 8-post shaker rig relative to a conventional 7-post shaker rig. A simple static...
This paper explores the use of vibro-impact dampers in attenuating brake squeal. This temperature and pressure independent energy dissipation approach adds damping directly to the rotor discs and thus enables...
This paper focuses on generating equations of motion for a Vehicle model. The generated equations can be used for rigid body analysis such as vibration analysis, frequency domain analysis, and...
This paper highlights a distinctive, highly-innovative, and project-based approach to supplying cutting-edge, market-driven and industry-focused education courses, at post-graduate level, in key motorsports engineering, business, and management subjects, using a...
This paper is a discussion of topics presented by the author at the Panel Session "Evaluation of Studies on Non-Deterministic Approaches (NDA) for Complex Systems" at the 2007 SAE World...
This paper is a review of the technical rationale for performance tests to qualify new hydrogen storage systems to assure safety throughout service life. SAE J2579 is used as an...
This paper is contributed to determining model parameters for DMFCs. Theoretical evaluations are carried out to set up the relationship between the unknown and measurable parameters or variables. A laboratory-scale...
This paper looks at the underlying fundamentals of diesel fuel system lubrication for the highly-loaded contacts found in fuel injection equipment like high-pressure pumps. These types of contacts are already...
This paper presents a comparison of the influence of different mixture preparation strategies on gaseous fuel combustion in SI engines. Three mixture preparation strategies are presented for a dedicated LPG...
This paper presents a longitudinal control algorithm for an adaptive cruise control (ACC) with collision avoidance (CA) in multiple vehicle traffic situations. The proposed algorithm consists of a multi-target tracking...
This paper presents a low-cost switched diversity receiver system utilizing a single tuner, simple remote antenna unit and one RF cable. The switched diversity algorithm is implemented in the receiver...
This paper presents a method to investigate the failure modes of an electric power steering system and to analyze the faults effects systematically by use of an accurate simulation model.
This paper presents a robust controller design method for improving vehicle lateral stability and handling performance. In particular, the practical load variation will be taken into account in the controller...
This paper presents an alternative and relatively simple method which allows the use of ordinary ejector-type diluters over a wide range of sample inlet conditions including elevated pressures and temperatures.
This paper presents an experimental calibration method for the feedforward fuelling controller for a PFI SI engine. A recently proposed method [ 1 ] is extended from the idle to...
This paper presents an overview of a new class of wireless acceleration sensor chips being developed by Evigia Systems and Air Force Research Laboratory (AFRL) that can record the magnitude...
This paper presents equations that relate the orientation and spacing of yaw mark striations to the vehicle braking and steering levels present at the time the striations were deposited. These...
This paper presents path geometries, velocities and accelerations of left-turning vehicles for one particular intersection layout. Video footage was taken above a typical urban intersection to record vehicles making left...
This paper presents results of a parametric CFD modeling study of a prototype Free Piston Engine (FPE), designed for application in a series hybrid electric vehicle. Since the piston motion...
This paper presents results of a three-phase research project aimed at understanding how future automotive interior materials should be selected or designed to satisfy the needs of the customers. The...
This paper presents the concept of a dual latent heat sink for thermal management of pulse heat generating electronic systems. The focus of this work is to verify the effectiveness...
This paper presents the development of a fluid quality sensor to provide a real-time, on-board oil quality assessment capability for commercial, military, and off-highway vehicle applications. The sensor provides for...
This paper presents three sub-models of production Engine Management Systems software for turbocharged engines; 1) new load variable for volumetric efficiency modelling, 2) new pumping torque model, where 1) and...
This paper proposes a lane departure prevention system, that generates yaw moment in an event of detecting lane departure, to assist the driver to manoeuvre the vehicle back to the...
This paper proposes a new returnless LPG fuel supply system designed to increase the efficiency of current LPG engines. With a conventional engine fuel supply system, the fuel pump is...
This paper provides an overview of recent developments in the area of arc fault detection (AFD) and wire fault location for aircraft wiring systems. Arc faults have been identified as...
This paper reports an active heat sink (AHS) that allows high-density electronic components to operate at a stable temperature over a broad range of ambient conditions. AHS receives heat at...
This paper summarizes a series of papers investigating the, in use, behavior of lithium-ion cells and packs. Initial efforts concentrated on cell data 2x and were reported in 2003 through...
This paper will illustrate how the increasing electrical demands of military and aerospace applications can successfully be met by high performance electromechanical relays. To meet these higher demands engineering compatibility...
This research was performed using a designed experiment to evaluate the loss of dry surface braking performance and stability that could be associated with the disablement of specific brake positions...
This study aims to develop a methodology to generate anatomically correct postures of existing human body finite element models while maintaining their mesh quality. This repositioning is often done by...
This study concerns a dissimilar materials joining technique for aluminum (Al) alloys and steel for the purpose of reducing the vehicle body weight. The tough oxide layer on the Al...
This study examined a method of predicting the piston temperature in reciprocating internal combustion engines with the aim of developing lightweight pistons. Since the piston temperature is strongly affected by...
This study examines the effects of ethanol content on engine performances and the knock characteristics in spark ignition gasoline engine under various compression ratio conditions by cylinder pressure analysis, visualization...
This study examines the impact of ETBE and ethanol addition on the main properties of motor gasoline. European Union mandates the use of biofuels in all transport fuels, according to...
This study examines the static pressure distribution under both width belts in the shoulder and the pelvis of 15 volunteer subjects. The subjects applied the belt loads to themselves through...
This study mainly focuses on oil consumption behavior of laser textured cylinder bores. The results of an experimental study performed on a six cylinder, 9.0 L capacity diesel engine is...
This study shows an example in which the conventional aerodynamic evaluation method that focuses on "steady" aerodynamic lift coefficient is not necessarily sufficient to evaluate vehicle's straight-ahead stability at high...
This summary covers representative developments from 2008 in diesel regulations, engine technology, and NOx, particulate matter (PM), and hydrocarbon (HC) control. Europe is finalizing the Euro VI heavy-duty (HD) regulations...
This vehicle simulation study estimates the fuel economy benefits of an HCCI engine system and assesses the NOx, HC and CO aftertreatment performance required for compliance with emissions regulations on...
This work explores how the high-load limits of HCCI are affected by fuel autoignition reactivity, EGR quality/composition, and EGR unmixedness for naturally aspirated conditions. This is done for PRF80 and...
This work intends to present a study about the application of a standard methodology for the evaluation of the mechanical components compromise as result of the use of biodiesel, based...
This work is based on comparative study of oilseed flax fibre and glass fibre reinforced composite boards for potential application in automotive industries. The material characterizations of flax and glass...
This work presents a second series of turbulence measurements made in a range of different on-road terrains and traffic conditions. Wind measurements were captured using a rake of four separate...
This work shows how vehicular features which are pre-installed but deactivated can be securely enabled later with activation codes. Nowadays, feature activation results in two business models. The first model...
This work was concerned with evaluation of the performance and emissions of potential future biofuels during advanced spark ignition engine operation. The fuels prepared included three variants of gasoline, three...
Three-dimensional CFD was used to optimize the torus section and stator blade shape, and newly developed stator blades were also employed to develop the fluid flow channels for a thin...
Three-dimensional conjugate heat transfer models are built to predict the steady-state performance of microscale pin-fin and cross-flow heat exchangers with hydraulic diameters on the order of 100 \u03bcm. Modeling, meshing,...
Through the use of hybrid technology, Ford Motor Company continues to realize enhanced vehicle fuel economy while meeting customer performance and drivability targets. As is characteristic of all Ford Hybrid...
Tire mark analysis is an important factor in accident reconstruction. A precise determination of pre- and postcrash speeds as well as longitudinal and lateral accelerations from tire marks contributes significantly...
To investigate free floating piston pin behavior in a heavy duty diesel engine, an unused piston-pin-rod joint was instrumented. Combining telemetry systems with inductively powered transducers, piston pin subsurface temperature...
To reduce accidents and fatalities on the roads, active safety systems which can avoid accidents or mitigate their effects are increasingly required. Contrary to already available driver assistance systems a...
To-date the primary challenge in conducting aerodynamic CFD simulations of actual vehicles with realistically complex geometry has been the construction of a computational mesh. The CAD-to-Mesh processes used to-date have...
Today's car manufactures inevitably have to focus on the reduction of fuel consumption while maintaining high performance standards. In this respect, the downsized turbocharged DISI (Direct Injection Spark Ignition) engine...
Ultra reliable space life support systems can be built with small additional mass for direct material supply or about twice the minimum mass for recycling equipment. The required direct supply...
Under the initiative of the United States Council for Automotive Research LLC (USCAR 2x) Transmission Working Group, a collaborative effort was made with LuK USA LLC to study the influence...
Under the U.S. Environmental Protection Agency's (EPA's) Heavy-Duty In-Use Testing (HDIUT) program, emission of non-methane hydrocarbons (NMHC), carbon monoxide (CO), and oxides of nitrogen (NO x ) have been regulated...
Vertical-Junction-Fi eld-Effect-Transisto rs (VJFETs) are currently the most mature SiC devices for high power/temperature switching. High-voltage VJFETs are typically designed normally-on to ensure voltage control operation at high current-gain. However,...
Viscosity index improvers based on poly(alkyl methacrylates) as well as polyolefins have been well known to the industry as key additives to formulate lube oils for decades. Recent efforts to...
Vortex generators, both active and passive, have been shown to be useful flow control devices on aircraft for both separation control and to maintain uniform flow over sections of the...
We are developing a drinking water test kit based on colorimetric-solid phase extraction (C-SPE) for use onboard the International Space Station (ISS) and on future Lunar and/or Mars missions. C-SPE...
We define an effective temperature ( T eff ) as an irradiance-weighted average temperature of a material during weathering. It is the constant temperature that would give the same amount...
We have developed a full virtual engine system prototyping platform with 4-cylinder engine plant model, SH-2A CPU hardware model, and object code level software including OSEK OS. The virtual engine...
We have investigated the catalytic performance of a porous-structured paper containing noble metal catalysts such as platinum (Pt) and rhodium (Rh) supported on a thermally stabilized alumina (Al 2 O...
When developing and later using simulation models for combustion prediction in internal combustion engines, it is first of all necessary to determine the model constants. This paper describes the development...
When forming components using composite materials, manual lay-up techniques remain unrivalled, despite shortcomings that limit geometrical complexity. As a result efforts towards automation of the manufacturing process can be desirable.
When the designer's target is the optimization of a composite system, the analysis of the interactions between the different elements of the system becomes a crucial topic. As a matter...
Whether society chooses energy security or climate change as its motivation, the level of United States motor gasoline consumption and its current growth rate must change drastically. Models for calculating...
While adult head injuries have been studied over the past six decades, few studies have investigated pediatric head injury mechanics. This paper presents non-injurious head accelerations during various activities in...
Window buffeting is a major source of flow induced sound and vibration. This paper will describe window buffeting measurements acquired on a full scale vehicle as well as two different...
With recent increases in global fuel prices there has become a growing interest in expanding the use of diesel engines in the transportation industry. However, new engine development is costly...
With the automotive industry using high-pressure common rail fuel systems to meet current and future emissions requirements, water removal is even more critical to extend the life of these fuel...
With the increased adoption of AUTOSAR operating systems across the different automotive system domains a notable exception has been that of the safety critical systems. This domain has strict requirements...
With the new developments in electronics, use of electronic sensors is becoming more common in today's vehicles. Oil level monitoring using electronic level sensor is one of them. In this...
With the rise in the introduction of biodiesel fuel throughout the world, there has arisen the technical issue of sludge formation due to oxidation degradation. The main causes of this...
Within a public founded project test cell investigations were undertaken to identify parameters which predominantly influence the development of critical deposits in injection nozzles. A medium-duty diesel engine was operated...
Worldwide emphasis on defect-free manufacturing within the automotive sector has driven manufacturers to seek out cost effective methods of 100% inspection. To achieve zero defect output cost-effectively, manufacturers are making...

<< Prev Next >>