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Reducing Oscillations in a Motor Vehicle Driveline

  • US 20100268429A1
  • Filed: 04/17/2009
  • Published: 10/21/2010
  • Est. Priority Date: 04/17/2009
  • Status: Active Grant
First Claim
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1. A method for reducing oscillations in a vehicle driveline comprising:

  • (a) transmitting torque to secondary wheels of the vehicle;

    (b) determining a first rate of change in speed between the secondary wheels and primary wheels;

    (c) if a second rate of change in speed between secondary wheels and primary wheels is greater than the first rate of change, reducing torque transmitted to the secondary wheels proportional to a ratio of the first rate of change and the second rate of change;

    (d) if the second rate of change is less than the first rate of change, using differential and proportional control to change said torque.

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