A pure electric vehicle automatic transmission control system and a two speed control method for a

Two speed automatic transmission control system and control method of the present invention discloses a method for a pure electric vehicle, the vehicle control system includes a controller, the drive motor controller, and a transmission control module is selected from the shift actuator, the shift select actuator motor comprising a gear selector, a shift motor, the shift position sensor, angular displacement sensor, and a mechanical transmission part. The present invention is a conventional electric vehicle drive system to be improved, the transmission structure using two steps, can improve the performance of electric vehicles, reducing the requirements for performance of the motor, the motor more efficient work area, extended driving range. During shifting, the transmission control module of the actuator shift select automatic control, automatic shifting, reducing the labor intensity of the operators; during the shift transmission control module, the vehicle drive motor controller and the controller the control method carried out by the set operating state of the driving motor integrated control, the rotational speed of the drive motor for precise control, shift shock is small, the improved vehicle ride and the shift comfort.