A Nonlinear Control Method of Steering Angle Following Used in Steer-by-Wire System

Abstract

In this paper, active disturbance rejection control method is used to implement the steering angle following control of steer-by-wire system for the simplification of controller designing. The dynamic model of steering performing system is established, and then a second order active disturbance rejection controller is designed to control the steering angle. On the electric vehicle with steer-by-wire system, the angle following test of steering performing system is carried out under the control of the second order active disturbance rejection controller. The results show that the designed active disturbance rejection controller can restrain the effect of system resistant force on the accuracy of angle following and meet the requirement of steer-by-wire system to the steering angle following function. At the same time, there isn’t necessary to get the accurate data of steering system and the design process of controller becomes simple with adopting active disturbance rejection control method.

Analysis of Steering Control Strategy on Tractor's Hydraulic Steering By-Wire System

“…SimMechanics is a member of the Simulink physical modeling product family; the product series expanded the Simulink modeling capabilities. In this way, we can not only get the physical structure of the model, but also observe its movement characteristics [5]. Fuzzy control and PID control are two common control methods in industrial control.…”