Optimal Simultaneous Design of Structure and Robust Controller for Car Steering Systems

Abstract

This paper presents a new optimal simultaneous design method for car steering systems. The purpose is to design high-performance car steering systems that exhibit stability and maneuverability in high-speed situations including lane change or emergency avoidance on freeway. Using a new performance index based on both the input deviation and the capacity for handling stability, the design problem can be formulated as one kind of simultaneous optimization problem. To solve this problem, a GA (Genetic Algorithm) based technique is developed. The effectiveness of the proposed method is confirmed by simulation results.