Closed center steering system

Details Closed center steering system Closed center steering system

2005-10-11

2009-02-03

Dickson, Paul N (Department: 3611)

Motor vehicles

Steering gear

With fluid power assist

C180S421000

Reexamination Certificate

active

07484588

ABSTRACT:
A steering apparatus (10) includes a hydraulic power steering gear (130) for turning the steerable wheels (15) of a vehicle. The steering gear (130) includes a closed center valve (150). An electric motor (18) is operatively connected with the steering wheel (12). When activated, the motor (18) resists rotation of the steering wheel (12) to provide steering feel to the vehicle driver and to modulate force applied to the steering wheel (12) upon initial opening of the closed center valve (150).

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