Patent ID: 6318496
Filing Date: 2001-11-20
Classification: B62D,Y10T

Abstract:
Steering booster system for a motor vehicle, comprising a transmission arrangement having an electric motor, an electronic control unit configured to sense an amount and direction of forces and torques appliable by a driver to a manual steering wheel and correspondingly to control a steering-force-assisting connection of an electric motor into a steering gear line coupleable to the manual steering wheel and steered vehicle wheels, an electrically switchable clutch for each steering direction, each clutch being arranged such that a first rotation direction at an input of the transmission arrangement associatable with the electric motor produces a second rotation direction at an output of the transmission arrangement associatable with the steering gear line, with the electronic control unit configured to control the steering force assistance by way at least one of a slip of the respective clutch and the torque of the electric motor, and at least one worm drive operatively connected with the electric motor via each clutch arranged at opposite ends of the electric motor.