Rotating Speed Control of Electric Vehicle During Gear Shift Process Based on Fuzzy Fractional PID

Aiming at the problem of low control accuracy and poor stability caused by the controller area network (CAN) communication time-varying delay during the rotating speed control phase of the gear shift process, a rotating speed closed-loop control mathematical model with random time-varying delay was established, and the method of using fractional PID to modify the frequency response curve was proposed, which improved the system's adaptability to time-varying delay. Aiming at the time-varying characteristic of time-varying delay and the limitation of fixed-parameter PID, a rotating speed control algorithm based on fuzzy fractional PID was designed. Simulation and experiment results show that the control algorithm achieves better effects.