Fuzzy-PID Control for Electric Power Steering

Abstract

This paper investigates and designs the fuzzy-PID controller for the Electrical Power Steering (EPS) system. Different from existing controller, in this paper, we establish the on-line fuzzy control rules to adjust the PID parameters. The fuzzy control rules are designed based on the practical conditions and the expert experience. Therefore, this control strategy can overcome the traditional PID controllers. The main advantage of the proposed control algorithm has able the adaptive of control parameters, which will greatly improve the stability of EPS system. Therefore, our fuzzy-PID controller improves significantly the steering maneuverability and steering wheel return ability. In addition, our control strategy improves system performance and robustness. Finally, based on Matlab/Simulink, the simulation model with CarSim is established to demonstrate the effectiveness of proposed controller.