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Automatic transmission calibration method

  • US 7,421,325 B2
  • Filed: 04/01/2005
  • Issued: 09/02/2008
  • Est. Priority Date: 04/01/2005
  • Status: Active Grant
First Claim
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1. A method of calibrating an automatic transmission for a vehicle design comprising:

  • acquiring laboratory-generated vehicle engine and transmission data;

    acquiring user-generated drivability data;

    determining upshift throttle levels from acquired laboratory-generated data and from drivability data;

    determining target engine speeds before upshift throttle levels from the laboratory-generated data and the drivability data; and

    generating upshift scheduling curves in a throttle level/transmission output speed plane based upon determined target engine speeds.

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