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Active front steer control for vehicle stability enhancement

  • US 20060136112A1
  • Filed: 12/20/2004
  • Published: 06/22/2006
  • Est. Priority Date: 12/20/2004
  • Status: Active Grant
First Claim
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1. A method for providing active front steering for a vehicle, said method comprising:

  • providing a vehicle speed signal of the vehicle;

    providing a lateral acceleration signal of the lateral acceleration of the vehicle;

    providing an actual yaw rate signal of the actual yaw rate of the vehicle;

    providing a steering angle signal indicative of the vehicle operator'"'"'s desired steering direction;

    determining a desired yaw rate of the vehicle based on the steering angle signal and the vehicle speed signal;

    determining a desired side-slip rate of the vehicle based on the steering angle signal and the vehicle speed signal;

    determining a yaw rate feedback signal based on the desired yaw rate signal and the actual yaw rate signal;

    determining a side-slip rate feedback signal based on the desired side-slip rate signal, the vehicle speed signal, the vehicle yaw rate signal and the vehicle lateral acceleration signal; and

    integrating the yaw rate feedback signal and the side-slip rate feedback signal to generate a stability enhancement control signal used for providing the active front steering of the vehicle, wherein integrating the yaw rate feedback signal and the side-slip rate feedback signal includes weighting one or both of the yaw rate feedback signal and the side-slip rate feedback signal.

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