Vehicle occupant restraint with seat pressure sensor

  • US 5,474,327 A
  • Filed: 01/10/1995
  • Issued: 12/12/1995
  • Est. Priority Date: 01/10/1995
  • Status: Expired due to Fees
First Claim
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1. In a vehicle occupant restraint system sensitive to the occupancy of a vehicle seat by an adult and an occupied infant seat and to the position of an infant seat including pressure sensors strategically located in the vehicle seat for response to the adult occupants and of infant seats, the method of controlling air bag deployment comprising the steps of:

  • measuring a pressure response of each sensor;

    calculating a total occupant weight;

    calculating a weight distribution parameter;

    distinguishing between adult and occupied infant seat presence on the basis of total occupant weight;

    distinguishing between forward facing and rear facing infant seats on the basis of the weight distribution parameter; and

    determining whether to inhibit deployment on the basis of adult presence, and on presence and position of an infant seat.

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