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Occupant sensing system and adjustment method thereof

  • US 7,289,894 B2
  • Filed: 02/10/2005
  • Issued: 10/30/2007
  • Est. Priority Date: 02/13/2004
  • Status: Expired due to Fees
First Claim
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1. An occupant sensing system comprising:

  • a plurality of load sensors, each of which senses a load applied to a seat of a vehicle; and

    an occupant sensing ECU that determines an occupant state on the seat by comparing a corresponding one of at least one sensed load data value with at least one occupant determination threshold value, wherein;

    each of the at least sensed load data value is originated from corresponding one or more of the plurality of load sensors;

    the at least one occupant determination threshold value is for determining a type of an occupant on the seat;

    the occupant sensing ECU stores at least one adjustment value, each of which is used to adjust a predetermined design value of each of the at least one occupant determination threshold value to obtain the at least one occupant determination threshold value;

    each of the at least one adjustment value is a difference between a corresponding one of at least one empty-state 0 point load value and a predetermined design value of the corresponding one of the at least one empty-state 0 point load value; and

    each of the at least one empty-state 0 point load value indicates a load applied to the seat in an empty state of the seat and is sensed through the corresponding one or more of the plurality of load sensors.

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