Phase-lead compensation and fuzzy self-adaptive PID control of EPS

In order to achieve the exact tracking of the motor current, decrease the torque's wave motion of the direct motor, the control strategy of the two-dimensional fuzzy controller of phase-lead compensation and fuzzy self-adaptive PID control were proposed. The simulation results showed that the controller reduced the overshoot and shorted the response time. With stable output response and good dynamic performance and steady-state precision, it improved the system of anti-interference ability and robustness.