Motor vehicles – Steering gear – With fluid power assist
Reexamination Certificate
2006-06-06
2006-06-06
Winner, Tony (Department: 3611)
Motor vehicles
Steering gear
With fluid power assist
C180S423000
Reexamination Certificate
active
07055643
ABSTRACT:
An apparatus (10) for helping to turn steerable wheels (12) of a vehicle comprises a hydraulic power-assisted steering gear (16). An electric motor (92) actuates the steering gear (16). A pump (84) supplies the steering gear (16) with hydraulic fluid. A vehicle speed sensor (102) senses vehicle speed and provides a vehicle speed signal. A controller (104) is responsive to the vehicle speed signal for controlling the pump (84). The controller (104) activates the pump (84) to supply hydraulic fluid to the steering gear (16) when the vehicle speed signal indicates a vehicle speed below a predetermined value and the controller (104) deactivating the pump (84) when the vehicle speed signal indicates a vehicle speed above the predetermined value.
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Peterson Philip S.
Redin Juan
Szabela William A.
Williams Daniel E.
Tarolli, Sundheim Covell & Tummino L.L.P.
TRW Automotive U.S. LLC
Winner Tony
LandOfFree
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