Multiobjective output-feedback suspension control on a half-car model

Abstract

This paper exploits the multiobjective control technique to design an output-feedback active suspension. The ride performance is characterized by the /spl Hscr/;/sub 2/ norm, while requirements for having good handling and respecting structural constraints and actuator saturation are specified by the generalized /spl Hscr/;/sub 2/ norm. The active suspension problem is then formulated in a mixed /spl Hscr/;/sub 2//generalized /spl Hscr/;/sub 2/ control problem, and an output-feedback solution is derived using LMI optimization. Simulation results for a half-car model are discussed.