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Adaptive rear-wheel steer open-loop control for vehicle-trailer system

  • US 7,269,489 B2
  • Filed: 04/14/2005
  • Issued: 09/11/2007
  • Est. Priority Date: 04/14/2005
  • Status: Active Grant
First Claim
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1. A control system for providing an open-loop rear-wheel steering assist signal for a vehicle/trailer combination, said system comprising:

  • a hand-wheel angle sensor for providing a hand-wheel angle signal of the position of a vehicle hand-wheel;

    a vehicle speed sensor for providing a vehicle speed signal of the speed of the vehicle;

    a vehicle yaw rate sensor for providing a measured vehicle yaw rate signal of the yaw rate of the vehicle; and

    a controller responsive to the hand-wheel angle signal, the vehicle speed signal and the vehicle yaw rate signal, said controller generating the open-loop steering assist signal, said controller adapting the open-loop steering assist signal for different trailers or the same trailer with different configurations based only on vehicle parameters and without any trailer parameters.

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