Title: Stability robustness of the LQG active suspensions with disturbance/noise uncertainties and time-varying parametrical perturbations

Authors: Shinn-Horng Chen, Jyh-Horng Chou, Chien-Hsiang Chao

Addresses: Graduate student, Institute of Mechanical Engineering, National Sun Yat-Sen University, Kaohsiung 804, Taiwan, Republic of China. ' Professor, Department of Mechanical Engineering, National Yunlin Institute of Technology, Touliu, Yunlin 640, Taiwan, Republic of China. ' Associate Professor, Institute of Mechanical Engineering, National Sun Yat-Sen University, Kaohsiung 804, Taiwan, Republic of China

Abstract: In this paper, a new sufficient condition of stability robustness for the LQG active suspension systems subject to disturbance/noise uncertainties and nonlinear/linear time-varying plant perturbations is presented. The proposed new sufficient condition provides a quantitative measure for automotive designers to design the LQG active suspension systems with robustness properties. An illustrated example is given to demonstrate the applicability of the proposed new method.

Keywords: disturbance uncertainty; vehicle noise; LQG active suspension; linear quadratic Gaussian; time-varying perturbations; vehicle suspensions; vehicle design; stability robustness.

DOI: 10.1504/IJVD.1995.061947

International Journal of Vehicle Design, 1995 Vol.16 No.4/5, pp.428 - 440

Published online: 28 May 2014 *

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