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METHODS, SYSTEMS, AND COMPUTER PROGRAM PRODUCTS FOR CALCULATING A TORQUE OVERLAY COMMAND IN A STEERING CONTROL SYSTEM

  • US 20080109134A1
  • Filed: 11/08/2006
  • Published: 05/08/2008
  • Est. Priority Date: 11/08/2006
  • Status: Active Grant
First Claim
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1. A method for calculating a torque overlay command in a steering control system, the method comprising:

  • receiving a current hand wheel angle;

    receiving a change in vehicle yaw moment command;

    calculating a lateral force in response to the change in vehicle yaw moment command;

    determining a new tire side slip angle from the lateral force;

    calculating a commanded hand wheel angle from the new tire side slip angle;

    calculating an error signal as a difference between the commanded hand wheel angle and the current hand wheel angle; and

    generating the torque overlay command from the error signal.

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