New energy vehicles can be divided into pure electric vehicles (EV) and hybrid vehicles (HEVPHEV) according to their power sources. The vehicle controller is the core control component of the new energy vehicle. The main function is to analyze the driver’s needs, monitor the driving status of the vehicle, coordinate the work of control units such as BMS, MCU, EMS, TCU, etc., to realize the power-on and power-off and drive control of the vehicle , Energy recovery, accessory control and fault diagnosis functions.