Hydraulic power steering system

Details Hydraulic power steering system Hydraulic power steering system

1996-12-16

1999-01-26

Hurley, Kevin

Motor vehicles

Steering gear

No mechanical connection between steering shaft and steering...

180406, B62D 508

Patent

active

058628789

ABSTRACT:
A hydraulic power steering system is provided in which a manual steering device and the steering vehicle wheels are normally coupled only by way of a control path with a desired-value generator operated by the manual steering device and an actual-value generator operated by the steering vehicle wheels. For controlling a hydraulic servomotor used for the steering operation of the steering vehicle wheels, a servo valve arrangement is operated by a desired-value/actual-value comparison. Only when there is a disturbance in the control path, will a hydraulic forced coupling take place between the manual steering device and the steering vehicle wheels.

REFERENCES:
patent: 3832849 (1974-09-01), Lang
patent: 4651841 (1987-03-01), Adams
patent: 4736811 (1988-04-01), Marsden et al.
patent: 4955445 (1990-09-01), Kauss
patent: 5489005 (1996-02-01), Marcott et al.
Japanese Abstract No. 62-15167, M-599, Jun. 17, 1987, vol. 11/No. 188.

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