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Using Driving Behavior to Determine Gear Changes of an Automatic Transmission

  • US 20090312926A1
  • Filed: 06/12/2008
  • Published: 12/17/2009
  • Est. Priority Date: 06/12/2008
  • Status: Active Grant
First Claim
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1. A method for changing the timing of gear changes of an automatic transmission for a motor vehicle, comprising the steps of:

  • (a) repetitively updating a current value of a count that is a measure of driving behavior;

    (b) using manual control of a gear selector to determine a desired transmission range and a base value for the desired range;

    (c) updating of the current value on the basis of a difference between the current value and the base value for the desired range;

    (d) performing at least one evaluation of driving behavior and updating the current value by a value determined from the evaluation; and

    (e) using the updated current value to establish a shift schedule that defines a gear change to be produced by the transmission.

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