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METHOD AND DEVICE FOR INCREASING THE PRECISION OF THE POSITION DETERMINATION OF A MOTOR-DRIVEN CLOSURE ELEMENT OF A VEHICLE

  • US 20100211273A1
  • Filed: 09/01/2008
  • Published: 08/19/2010
  • Est. Priority Date: 10/19/2007
  • Status: Active Grant
First Claim
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1. A method for increasing the precision of the position determination of a motor-driven closure element of a vehicle, comprising the following steps:

  • determination and storage of data which corresponds to a force-displacement reference curve;

    determination and storage of data which corresponds to a force-displacement actual-value curve;

    calculation of a correlation function using the data which corresponds to the force-displacement reference curve, and the data which corresponds to the force-displacement actual-value curve;

    determination of the maximum of the correlation function; and

    correction of the counter status of a position counter in order to correct a counting error, using the position offset value associated with the determined maximum.

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