International Federation of Automatic Control
3rd IFAC SYMPOSIUM on SYSTEM, STRUCTURE and CONTROL

Foz do Iguassu, Brazil October 17th - 19th, 2007

Wednesday Morning

Session WM3: Control Strategies and Applications


Chair: Luc Dugard - France
Co-chair: Alexandre Trofino - Brazil
Room: Santiago
2007-10-17
From 10:00 to 12:00
A LPV Based Semi-Active Suspension Control Strategy
Charles Poussot-Vassal; Olivier Sename; Luc Dugard; Peter Gáspár; Zoltan Szabó; Jozsef Bokor
Contact: Charles Poussot-Vassal - France
11:20-11:40
Abstract:
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. Copyright © 2007 IFAC.