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Seat occupant identifying apparatus designed to compensating for aging-caused error

  • US 20040215381A1
  • Filed: 03/19/2004
  • Published: 10/28/2004
  • Est. Priority Date: 03/20/2003
  • Status: Abandoned Application
First Claim
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1. A seat occupant identifying apparatus for a vehicle comprising:

  • a load sensor responsive to a physical load acting on a seat of a vehicle which arises from occupancy of the seat by a passenger to provide an output indicative thereof;

    a seat occupant identifying circuit working to identify the passenger on the seat based on comparison of the output of said load sensor with a passenger identifying threshold value;

    an aging-caused drift estimating circuit working to estimate an aging-caused drift of an actual output of said load sensor when the seat is unoccupied which arises from aging of said load sensor; and

    a threshold correcting circuit working to correct the passenger identifying threshold value based on the aging-caused drift estimated by said aging-caused drift estimating circuit.

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