The power system of electric formula racing car is generally composed of vehicle controller (ECU), motor controller (MCU), driving motor, battery management system (BMS), power battery (RESS) and various sensors. Among them, all components communicate through CAN bus. The vehicle controller controls the motor controller through CAN bus according to the motor and battery states read in CAN, the vehicle states collected by sensors and the driver's operation. The motor controller analyzes the torque demand and drives the motor; The battery management system monitors the temperature and voltage of each battery cell in real time, calculates the current SOC of the battery, and assists the motor controller to control the energy recovery intensity. For details, please refer to the scheme of Zhiyuan Electronic New Energy Vehicle Teaching Platform.