Practical Static Output Feedback Control Methods for Constrained Piecewise Affine Systems: An Application in Vehicle Suspension Control

摘要

This paper presents three different static output feedback controller design methods for constrained discrete-time piecewise affine systems. The three methods can all guarantee the asymptotic stability, H_∞ performance and time-domain constraints of the closed-loop system. Since the output feedback is a non-convex problem, the controller design based on convex optimization can only give sufficient conditions and often encounters feasibility problems. In view of this, different design principles corresponding to the three methods are given in this paper, thereby improving the possibility of obtaining a static output feedback controller. A simulation example of vehicle suspension control is given to analyze the effectiveness and differences of the proposed methods.