In order to solve the problem of imprecise speed adjustment, slow speed response and poor adaptability of electric vehicle permanent magnet brushless motor control, by analyzing the characteristics of wheel motor speed regulating system, the influence of the motor vehicle performance was studied. Based on the simplified mathematical model of permanent magnet brushless dc motor, the control strategy was discussed from the Angle of velocity adjustment. Aimed at fast and stable response of motor speed, the prototype experiment platform of permanent magnet brushless DC motor based on dSPACE was set up. The influence of fuzzy PI control strategy on vehicle performance was discussed. The experimental results showed that the fuzzy PI closedloop control strategy could improve the speed regulation performance of the motor and improve the traveling stability of hub motor electric vehicle with permanent magnet brushless DC motor.