Methods, systems, and computer program products for calculating a torque overlay command in a steering control system
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United States of America Patent
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Nov 16, 2010
Grant Date -
May 8, 2008
app pub date -
Nov 8, 2006
filing date -
Nov 8, 2006
priority date (Note) -
Expired
status (Latency Note)
Importance
Abstract
A method, system, and computer program product for calculating a torque overlay command in a steering control system is provided. The method includes receiving a current hand wheel angle, receiving a change in vehicle yaw moment command, and calculating a lateral force in response to the change in vehicle yaw moment command. The method also includes determining a new tire side slip angle from the lateral force and calculating a commanded hand wheel angle from the new tire side slip angle. The method further includes calculating an error signal as a difference between the commanded hand wheel angle and the current hand wheel angle, and generating a torque overlay command from the error signal.
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