Abstract:Based on the mathematical model of Electric vehicle motor, the experiment platform is established by using a new modeling method of BLDCM control system, the voltage equation, the motion equation and the electromagnetic torque equation. PID control is used in the speed loop and hysteresis current track type of PWM is used in the current loop. Simulation and experimental results show that the control system has good dynamic and static performance, which shows the feasibility of the proposed method and provides an important basis for the design and control of motor control system.