EVCC module from the EVSE gun to provide the control signal line CP, PP, PE, to simulate the national standard car required signal control, and use the EVSE gun in the AC, DC energy transmission harness through OBC to charge the high-voltage power battery, vehicle controller can be the whole process of charging monitoring。EVCC module controls the output voltage and output current through CAN bus, and realizes the information interaction with BMS and VCU through CAN communication, as well as the feedback of the working state。