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VEHICLE STEERING CONTROL DEVICE AND METHOD

  • US 20100138112A1
  • Filed: 07/31/2008
  • Published: 06/03/2010
  • Est. Priority Date: 08/02/2007
  • Status: Active Grant
First Claim
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1. A vehicle steering control device:

  • wherein a steering wheel is mechanically disconnected from a turning mechanism for tuning a steering road-wheel;

    configured to perform a normal control for controlling a turning angle of the steering road-wheel on the basis of a first target turning angle set according to a steering angle of the steering wheel;

    configured to perform an automatic turning control for controlling the turning angle of the steering road-wheel on the basis of a second target turning angle set according to a running state of vehicle; and

    wherein the vehicle steering control device comprises a reaction-force control section configuredto control a steering reaction force to be applied to the steering wheel, by defining a value of the steering angle at which the steering reaction force is equal to 0, as a value of the steering angle at a time of straight running of the vehicle, under the normal control, andto control the steering reaction force, by defining a value of the steering angle set according to the second target turning angle, as the value of the steering angle at which the steering reaction force is equal to 0, under the automatic turning control.

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