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Method of predicting an empty seat condition in an occupancy sensing system

  • US 6,901,322 B1
  • Filed: 12/30/2003
  • Issued: 05/31/2005
  • Est. Priority Date: 12/30/2003
  • Status: Expired due to Fees
First Claim
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1. A method of predicting an empty seat condition for a vehicle seat having an occupancy sensing system with a sensor array assembly, said method including the steps of:

  • determining a first resultant value based on the change between the differences among a first series of sensor readings taken from the sensor array over a first predetermined period of time;

    determining a second resultant value based on the change between the differences among a second series of sensor readings taken from the sensor array over a second predetermined period of time;

    summing said first and second resultant values to determine if the summed value is negative;

    re-determining the first and second resultant values and re-summing if the summed value is positive;

    calculating the change in the first and second resultant values as a function of time to determine if the calculated change is greater than a predetermined value if the summed value is negative; and

    classifying the vehicle seat as empty if the summed value is negative and calculated change is greater than the predetermined amount.

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