Robust Non-fragile H∞ Optimum Control for Active Suspension Systems with Time-varying Actuator Delay

UM > Faculty of Science and Technology

Status	已發表Published
	Robust Non-fragile H∞ Optimum Control for Active Suspension Systems with Time-varying Actuator Delay
	Li, W.F.; Xie, Z.C.; Wong, P. K.; Cao, Y.C.; Zhao, J.
	2019-06-01
Source Publication	Journal of Vibration and Control (SCI-E)
ISSN	1077-5463
Pages	2435-2452
Abstract	The active suspension has drawn considerable attention due to its superiority in improving the vehicle vertical dynamics. This paper investigates robust non-fragile H∞ optimal control for the vehicle active suspension with time-varying actuator delay. Firstly, the dynamic equation of an active suspension system with actuator delay is established in terms of the main performance objectives, i.e. ride comfort, handling ability and road holding. Then, a robust non-fragile H∞ optimal controller is proposed to deal with the problem of active suspension control with time delay and actuator uncertainty, which is based on Lyapnov theory, convex optimization and linear matrix inequality (LMI) approach. Finally, a quarter-car test rig is used for experiment to illustrate the effectiveness of the proposed controller. Simulation and experimental results demonstrate that the proposed controller can ensure the asymptotic stability of the closed-loop system with bounded time-varying actuator delay while managing the tradeoff between the conflicting performances and achieving performance optimization for the active suspension.
Keyword	active suspension actuator delay H∞ control convex optimization quarter-car test rig
Language	英語English
The Source to Article	PB_Publication
PUB ID	46706
Document Type	Journal article
Collection	Faculty of Science and Technology
Corresponding Author	Xie, Z.C.; Zhao, J.
Recommended Citation GB/T 7714	Li, W.F.,Xie, Z.C.,Wong, P. K.,et al. Robust Non-fragile H∞ Optimum Control for Active Suspension Systems with Time-varying Actuator Delay[J]. Journal of Vibration and Control (SCI-E), 2019, 2435-2452.
APA	Li, W.F.., Xie, Z.C.., Wong, P. K.., Cao, Y.C.., & Zhao, J. (2019). Robust Non-fragile H∞ Optimum Control for Active Suspension Systems with Time-varying Actuator Delay. Journal of Vibration and Control (SCI-E), 2435-2452.
MLA	Li, W.F.,et al."Robust Non-fragile H∞ Optimum Control for Active Suspension Systems with Time-varying Actuator Delay".Journal of Vibration and Control (SCI-E) (2019):2435-2452.

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