Patent ID: 9145124
Filing Date: 2015-09-29
Classification: B60K,B60T,B60W,Y02T,Y10T

Abstract:
1. An electric four wheel drive system, which includes dual clutches selectively preventing power from being transmitted to rear wheels from a motor, the system comprising: a motor housing mounted on the motor; a hydraulic valve assembly mounted on the motor housing and providing an operating hydraulic pressure to the dual clutches; and a controller separately controlling the dual clutches in accordance with a torque vectoring duty calculated based on traveling conditions of a vehicle, wherein the hydraulic valve assembly controls the dual clutches, using hydraulic pressure generated by a hydraulic pressure generator of a regenerative braking system, wherein the hydraulic pressure generator and the hydraulic valve assembly are connected by a connection line, and wherein the electric four wheel drive system provides the operating hydraulic pressure to the dual clutches by means of the hydraulic pressure generator and the hydraulic valve assembly and achieves torque vectoring for the rear wheels.