Robust Active Front Steering Control Based on the Mu Control Theory

The purpose of this paper is to propose a new control method in active front steering for vehicle stability using Mu control theory. The vehicles always undertake different loadings and variation road friction coefficient including external disturbances and the design of vehicle control system has model errors in fact, the primary design techniques for active front wheel steering vehicle controller are their inability to degrade the performance of closedloop systems. The design of yaw rate tracking control system architecture by using robust control is presented and the weighting functions are selected. The results show that the control system with Mu controller has fine dynamic characteristic, robust stability and robust performance, and the active front steering vehicle with the proposed control strategy can provide greater vehicle stability.