Patent ID: 6175231
Filing Date: 2001-01-16
Classification: B62D,G01D,G01P

Abstract:
An electronically assisted power steering system for a motor vehicle comprising:a primary shaft which is operatively connected at a distal end to a manual steering wheel for transmitting a steering torque from the steering wheel which steers the steerable wheels of the motor vehicle, and which includes a proximal end;an output member which is operatively connected at a distal end to the steerable wheels, and which includes a proximal end;a servo motor having a proximal end which exerts an auxiliary force on the primary shaft or the output member;a detection unit which provides a non-contact detection of one or more of (a) a direction and strength of a steering torque acting on the primary shaft, (b) a direction or speed of a steering movement of the primary shaft, (c) another change in movement of the primary shaft or the output member, and (d) another element of the power steering system, the detection unit includinga pulse transmitter connected with one or more of the primary shaft, of the output member, or of another element of the servo-assisted steering system, a sensor, anda gap provided between the pulse transmitter and the sensor; anda system housing which encloses the proximal ends of the primary shaft, the output member, and the servo motor, and inside of which the pulse transmitter is located and outside of which the sensor is located, the system housing extending throughout the gap provided between the pulse transmitter and the sensor.