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Method and system for determining weight and position of a vehicle seat occupant

  • US 7,082,360 B2
  • Filed: 03/16/2001
  • Issued: 07/25/2006
  • Est. Priority Date: 02/04/1994
  • Status: Expired due to Fees
First Claim
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1. A weight sensing apparatus for a vehicle seat comprising:

  • a plurality of sensors each including a mounting portion for attachment to a vehicle seat structure and a deflectable portion that deflects in response to a weight force applied to the vehicle seat structure to generate a weight signal wherein each of said sensors includes a sensor interface circuit mounted to said deflectable portion that develops a pulse width modulation signal indicative of the weight applied to said corresponding sensor;

    at least one strain gauge mounted to said deflectable portion of each of said sensors; and

    a controller for receiving said weight signals from said sensors to determine seat occupant weight.

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