Title: Robust design of active suspension system

Authors: P. Michelberger, L. Palkovics, J. Bokor

Addresses: Technical University of Budapest, Hungary. ' Technical University of Budapest, Hungary. ' Technical University of Budapest, Hungary

Abstract: In this paper, the authors deal with some new control design methods of the control system used in active wheel suspension. Applicability of H_∞ control in case of the active suspension system is examined still using the familiar quarter-car model. The robust control problem is solved in case of direct state-feedback H_∞ and in the presence of structured (parametric) uncertainties solving the RLQR design task. The authors solve the joint H_∞/RLQR problem proving the trade-off between the external disturbance rejection (road irregularities) and the internal disturbance attenuation arising from the parametric uncertainties.

Keywords: active suspension systems; suspension design; robust control; LQR; LQG; vehicle performance; vehicle stability; Hoo; control design; RLQR design; vehicle design; vehicle suspension; parametric uncertainties; H-infinity control.

DOI: 10.1504/IJVD.1993.061831

International Journal of Vehicle Design, 1993 Vol.14 No.2/3, pp.145 - 165

Published online: 28 May 2014 *

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