A LPV based semi-active suspension control strategy

Charles Poussot-Vassal (1) , Olivier Sename (1) , Luc Dugard (1) , Peter Gaspar (2) , Zoltan Szabo (2) , Jozsef Bokor (2)

1 GIPSA-SLR - GIPSA - Systèmes linéaires et robustesse
2 Systems and Control Laboratory, Computer and Automation Research Institute

In this paper we consider the design and analysis of a semi-active suspension controller. In the recent years different kinds of semi-active control strategies, like two-state Skyhook, LQ-clipped or model-predictive, have already been developed in the literature. In this paper we introduce a new semi-active suspension control strategy that achieves a priori limitations of a semi-active suspension actuator (dissipative constraint and force bounds) through the Linear Parameter Varying (LPV) theory. This new approach exhibits some interesting advantages compared to already existing methods (implementation, performance flexibility, robustness etc.). Both industrial criterion evaluation and simulations on nonlinear quarter vehicle model are performed to show the efficiency of the method and to validate the theoretical approach.

Mots clés: Linear Matrix Inequality (LMI).; Linear Matrix Inequality (LMI); Semi-active suspension; Linear Parameter Varying (LPV); Hinf Control

Domaines: Automatique / Robotique

Charles Poussot-Vassal, Olivier Sename, Luc Dugard, Peter Gaspar, Zoltan Szabo, et al.. A LPV based semi-active suspension control strategy. SSSC 2007 - 3rd IFAC Symposium on System, Structure and Control, Oct 2007, Foz do Iguaçu, Brazil. pp.6. ⟨hal-00148831⟩