Trw Limited

Trw Automotive U.S. LLC

Kelsey-Hayes Company

Stephen J Green

Mark A Cartwright

Richard J Barron

Kenneth A Doll

Kurt Achenbach

Kevin E Boyle

Terry D Carson

Zugang Huang

A vehicle control system includes a steering mechanism adapted to be operatively connected to associated wheels of a vehicle. A position sensor is operatively connected to the steering mechanism to generate a signal representative of a position of the steering mechanism. A filter device receives the steering position signal and generates a filtered output. The electronic control unit is operable to generate a control signal based at least in part upon the filtered steering position signal. A vehicle control subsystem is in communication with the electronic control unit and is responsive to the control signal. A vehicle system is controlled by monitoring the position of a steering mechanism of a vehicle, determining a rate of change of the position of the steering mechanism, filtering the rate of change, comparing the filtered rate of change to a threshold value, and controlling a vehicle system based upon the comparison.

Vehicle control system and method of controlling a vehicle system

A method of controlling a roll control system includes monitoring the position of a steering mechanism of a vehicle. A rate of change of the position of the steering mechanism is determined. The rate of change is compared to a change threshold value. The lateral acceleration of a vehicle is monitored. The lateral acceleration is compared to an acceleration threshold value. A roll control system having at least one of a front and a rear actuator is controlled based at least in part upon the comparisons of the rate of change of the steering mechanism to the change threshold value and the lateral acceleration to the acceleration threshold value. The front and rear actuators are controlled independently of each other depending upon the state of a vehicle stability index.

Method of controlling a roll control system for improved vehicle dynamic control

A steering system () for a vehicle () comprises a housing () having first and second end portions () and an intermediate portion (). A steering member () is supported for axial movement in the housing (). A piston () fixed for movement with the steering member () has opposite end faces (). First and second springs () engage the end faces () of the piston () and bias the piston and thereby the steering member () in first and second axial directions toward a straight ahead position. Steering linkage () connected with the piston member () transmits movement of the piston member () to steerable wheels () of the vehicle.

Self-centering steering system

An apparatus for attachment to the body ( ) of a vehicle ( ) which has a front, rear and opposite sides and which has steerable wheels. The apparatus comprises a lower part ( ) having structure ( ) for fixed attachment at each of the opposite sides of the vehicle. A first steering control arm ( ) is pivotally connected to the lower part ( ) at one side of the vehicle. A second steering control arm ( ) is pivotally connected to the lower part ( ) at an opposite side of the vehicle. An upper part ( ) is connected with the lower part ( ). A rack and pinion steering mechanism ( ) includes a rack bar ( ) movable axially in opposite directions to effect steering movement of the steerable wheels of the vehicle. The steering mechanism ( ) includes a chamber ( ) through which the rack bar ( ) extends. The chamber is defined by surfaces of the upper and lower parts ( ).

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Clarkston, MI, United States of America

Stephen J Green