Internal detailed explanation of new energy vehicle motor controller

The motor controller is an energy transmission device between the power battery and the motor, which is mainly composed of a power supply circuit, a control circuit and a drive circuit. The function is: to receive the VCU command, invert the DC power provided by the power battery into a three-phase AC power drive motor; during braking and deceleration, rectify the AC power from the motor into DC power to charge the power battery. The motor controller ensures the normal forward, backward, stop, energy recovery, communication, fault detection and alarm of the vehicle, and is an important component of the electric vehicle.

1. Classification and composition
1. A single controller.
2. Three-in-one integrated controller: EHPS controller & ACM controller & DC-DC.
3. Five-in-one controller integration: EHPS controller & ACM controller & DC-DC & PDU & dual source EPS controller.
4. Passenger car controller integration: main drive & DC-DC.
5. Three-in-one controller integration for logistics vehicles: main drive & DC-DC & PDU.
6. Five-in-one controller integration for logistics vehicles: main drive & EHPS controller & ACM controller & DC-DC & PDU.