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Torque-based occupant weight estimation apparatus for a vehicle seat

  • US 20050061554A1
  • Filed: 09/18/2003
  • Published: 03/24/2005
  • Est. Priority Date: 09/18/2003
  • Status: Active Grant
First Claim
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1. Apparatus for estimating the weight of an occupant of a vehicle seat supported by first and second laterally separated floor brackets, the apparatus comprising:

  • at least a first torsion bar extending between said first and second floor brackets and rotatably supported thereby;

    first and second laterally separated linkage arms coupling a frame of said seat to said first torsion bar for imparting a torque to first torsion bar in relation to said occupant weight; and

    a first sensor for measuring the torsion bar torque between said linkage arms to provide an indication of said occupant weight.

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