Drive torque transfer scheme

   
   

The present invention relates to methods of torque transfer, torque transfer units, and vehicles incorporating the same. According to the method, a delta signal indicative of a rotational condition of the first driveline is generated and a torque transfer unit is controlled as a function of a torque transfer control algorithm. The control algorithm commands a transfer torque representing an amount of torque to transfer from the source of power to one of the first and second drivelines. The torque transfer control algorithm is a function of the delta signal and is substantially independent of any rotational condition of the second driveline over a primary operational range of the algorithm. Reference values may comprise a desired vehicle acceleration value, an actual vehicle acceleration value, a vehicle ground speed value, temporally displaced first driveline acceleration values, temporally displaced first driveline speed values, and combinations thereof.

 
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