Patent ID: 6279673
Filing Date: 2001-08-28
Classification: B60T,B62D

Abstract:
A steering system in a vehicle equipped with a traffic-lane following device, comprising a steering device for introducing a manual steering force into the steering system; a mechanical steering run for mechanically coupling the steering device to steerable vehicle wheels; a servomotor operatively coupled to the steering run to operate steering of the vehicle steered wheels; a servovalve arranged in the steering run and having a first control part associated with a first section on a steering device side of the steering run and a second control part associated with a second section on a vehicle steered wheel side of the steering run, the servovalve being arranged to operate the servomotor as a function of relative movements between the control parts; an actuating drive operatively coupled to the section on the steering device side of the steering run for introducing a mechanical steering force; and a regulating and control arrangement comprising a sensor system to determine a required steering angle value to allow the vehicle to follow a predetermined traffic lane, to determine an actual steering angle value by way of a steering angle sensor and to operate the actuating drive as a function of a comparison of required and actual values of the steering angles to introduce a steering force, wherein the steering angle sensor for detecting the actual steering angle value interacts with the section on the vehicle steered wheel side of the steering run.