Electric drive system for an automobile and the use of the electric drive system of the car

The present invention provides a kind of an electric drive system for an automobile and the use of the electric drive system of an automobile. The electric drive system for an automobile comprising: an inverter unit for converting external energy supplied to the DC power into alternating current; motor unit, for AC power from the inverter unit is converted into mechanical rotation, from outputting an output shaft; transmission means, so that the rotation is transmitted from the input shaft to the output decelerated. Motor unit, the transmission unit, the inverter unit have relatively independent packaging case, and the input shaft axially in the motor unit and an inverter unit in the transmission unit gearbox unit sandwiching manner, detachably fixed to the interconnected together. The minimum thickness of the package in the axial direction of the housing of the inverter unit.