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Occupant classification method based on seated weight measurement

  • US 7,039,514 B2
  • Filed: 03/10/2004
  • Issued: 05/02/2006
  • Est. Priority Date: 03/10/2004
  • Status: Active Grant
First Claim
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1. A method of classifying an occupant of a motor vehicle seat, comprising the steps of:

  • measuring and sampling a seated weight of the occupant to form a primary data set including an average weight, an average standard deviation of said average weight and an average longitudinal center-of-mass of the occupant;

    monitoring said average standard deviation of said primary data set to detect an initial period of weight measurement stability;

    classifying the occupant as a forward-facing child seat if;

    (1) said initial period of weight measurement stability is detected, and (2) the average weight during said initial period does not exceed a child seat threshold, and (3) the average longitudinal center-of-mass during said initial period is rearward of a reference point; and

    classifying the occupant as a rearward-facing child seat if;

    (1) said initial period of weight measurement stability is detected, and (2) the average weight during said initial period does not exceed a child seat threshold, and (3) the average longitudinal center-of-mass during said initial period is forward of said reference point.

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