H∞ control of a novel low-cost roll-plane active hydraulically interconnected suspension: An experimental investigation of roll control under ground excitation

Publication Type:
Journal Article
SAE International Journal of Passenger Cars - Mechanical Systems, 2013, 6 (2)
Issue Date:
Filename Description Size
Thumbnail2012006227OK.pdf638.61 kB
Adobe PDF
Full metadata record
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∞ roll control strategy is employed to control vehicle body's roll motion. The hydraulic suspension model used for deriving the H∞ 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∞ control is provided. On a 4-posttest rig, the active suspension with H∞ 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∞ controller is verified by the test data, with a considerable roll angle reduction in the three tests presented. 2013 SAE International.
Please use this identifier to cite or link to this item: