Power steering system

Details Power steering system Power steering system

2011-07-05

2011-07-05

Boehler, Anne Marie M (Department: 3611)

Motor vehicles

Steering gear

With fluid power assist

C180S441000, C180S446000

Reexamination Certificate

active

07971679

ABSTRACT:
A power steering system for a vehicle is described, wherein a magnetic or electromagnetic actuator, which can be acted on via a controller, is associated with a torsion bar connected to a steering wheel, and by which the torsional stiffness of the system is variable in dependence on the vehicle speed, the steering angle speed and/or the transverse acceleration. In this connection, the electrical power supply of the magnetic or electromagnetic actuator taking place via the controller is interrupted or reduced when a steering angle speed of zero is detected or when a steering angle speed of zero and a vehicle speed of zero are detected.

REFERENCES:
patent: 5749431 (1998-05-01), Peterson
patent: 5771989 (1998-06-01), Sangret
patent: 05072996 (1994-09-01), None
patent: 1695893 (2006-08-01), None
German language Search Report dated Dec. 28, 2007 issued in counterpart European Patent Application No. 07017686.2, and an English Translation of the Search Report.

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