In order to make the active suspension more affordable, a novel low-cost active hydraulically interconnected suspension is developed, assembled and tested onto a sport utility vehicle. H\u221e roll control strategy is employed to control vehicle body's roll motion. The hydraulic suspension model used for deriving the H\u221e controller is estimated experimentally from the testing data. The active suspension model is then combined with the half-car model through their mechanical-hydraulic interface in the cylinders. The weighting function design of the H\u221e control is provided. On a 4-post-test rig, the active suspension with H\u221e control is validated with several road excitations. The test rig and experimental setup are explained and the obtained results are compared. The effectiveness of the designed H\u221e controller is verified by the test data, with a considerable roll angle reduction in the three tests presented.
In order to make the active suspension more affordable, a novel low-cost active hydraulically interconnected suspension is developed, assembled and tested onto a sport utility vehicle. H\u221e roll control strategy is employed to control vehicle body's roll motion. The hydraulic suspension model used for deriving the H\u221e controller is estimated experimentally from the testing data. The active suspension model is then combined with the half-car model through their mechanical-hydraulic interface in the cylinders. The weighting function design of the H\u221e control is provided. On a 4-post-test rig, the active suspension with H\u221e control is validated with several road excitations. The test rig and experimental setup are explained and the obtained results are compared. The effectiveness of the designed H\u221e controller is verified by the test data, with a considerable roll angle reduction in the three tests presented.
