Patent ID: 6520880
Filing Date: 2003-02-18
Classification: F16H

Abstract:
A traction distribution device for a motor vehicle with wheel shafts, comprising:a differential, said differential comprising a differential casing and a differential-gear mechanism, wherein the differential-gear mechanism transmits torque of the differential casing to the wheel shafts; a source of a hydraulic pressure, said source including a hydraulic pump which produces said hydraulic pressure by torque of the differential casing; a hydraulic motor arranged to interact with the differential-gear mechanism, said motor providing relative torque between one of the wheel shafts and the differential casing in accordance with a direction of said hydraulic pressure supplied thereto, said hydraulic motor including a trochoid motor, said trochoid motor comprising a shell portion and a core portion which produce relative rotation in accordance with said direction of said hydraulic pressure, said shell portion being connected to the differential casing, said core portion being connected to said one of the wheel shafts; means for controlling said hydraulic pressure supplied to said motor; and means for switching said direction of said hydraulic pressure supplied to said motor.