20kW electric vehicle drive system

The present invention discloses a 20kW electric vehicle drive system, comprising an electronic controller (1), the motor (2), a transmission (3) and the power battery (4), an electronic controller (1) comprises an external control signal interface circuit (5), the power converter (6), the control circuit (7) and a drive circuit (8), the motor (2) and the output side of the transmission (3) connected to the rotor shaft, the other side of the rotor shaft of the motor (2) the speed encoder (9), a transmission (3) is directly mounted to the drive shaft (13) together with the car. Advantageous Effects of Invention wherein: the high efficiency of the motor drive system, vibration, reliable, easy to maintain, the torque control of the drive system is good, a large driving force, energy density, stable, reducing the weight of the transmission, reduced the volume.