Vehicle steering system
First Claim
Patent Images
1. In an automotive vehicle, a steering system comprising;
- a housing supported on a chassis of said vehicle by an elastomeric member;
a rack slidably disposed in said housing;
a pinion disposed in said housing, said pinion being arranged to mesh with said rack;
a steering wheel operatively connected with said pinion for synchronous rotation therewith;
a source of hydraulic fluid under pressure;
a hydraulic servo fluidly connected with said source and operatively connected with said housing for selectively biasing same in first and second axial directions;
a control valve fluidly interposed between said servo and said source for selectively pressurizing said servo in a manner to bias said housing in said first and second axial directions; and
control means operatively connected with said control valve for controlling said control valve in response to a sensed vehicle operating parameter.
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Abstract
A hydraulic servo axially biases a rack and pinion steering housing to add an additional amount of steering to the front wheels of a vehicle in response to one of (a) the amount of steering wheel rotation, (b) the rate of steering wheel rotation, or (c) the vehicle yaw rate, to compensate for the effect of cross winds or the like.
23 Citations
6 Claims
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1. In an automotive vehicle, a steering system comprising;
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a housing supported on a chassis of said vehicle by an elastomeric member; a rack slidably disposed in said housing; a pinion disposed in said housing, said pinion being arranged to mesh with said rack; a steering wheel operatively connected with said pinion for synchronous rotation therewith; a source of hydraulic fluid under pressure; a hydraulic servo fluidly connected with said source and operatively connected with said housing for selectively biasing same in first and second axial directions; a control valve fluidly interposed between said servo and said source for selectively pressurizing said servo in a manner to bias said housing in said first and second axial directions; and control means operatively connected with said control valve for controlling said control valve in response to a sensed vehicle operating parameter. - View Dependent Claims (2, 3, 4, 5, 6)
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Specification