Simulation Research of Fuzzy Auto-tuning PID Controller Based on Matlab

In this paper, the fuzzy control and the PID control are combined, and the fuzzy inference method is utilized to realize the on-line auto-tuning of PID parameters. By applying the fuzzy control toolbox and the Simulink in Matlab , it takes the electric steering gear as the object to simulate. By setting the fuzzy auto-tuning controller, the paper draws a conclusion that this method surpasses the conventional PID with higher control accuracy, smaller overshoot, and better dynamic performance.