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Method and system in the classification of objects occupying a seat

  • US 7,383,113 B2
  • Filed: 02/26/2003
  • Issued: 06/03/2008
  • Est. Priority Date: 07/20/2002
  • Status: Active Grant
First Claim
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1. A method for classifying an object occupying a seat, for a classification-dependent triggering of a restraint system in a motor vehicle, the method comprising:

  • determining, based on a signal of at least one acceleration sensor that senses acceleration of the vehicle, first forces acting on the object in a horizontal plane as to their magnitude;

    determining, based on a signal of at least one pressure sensor, second forces exerted on the seat by the object in a direction that is perpendicular to the horizontal plane as to their magnitude;

    determining, based on the determined magnitudes of the first and second forces, physical variables of the object, the physical variables including a position of a center of mass of the object with respect to each of three axes, each of the axes being perpendicular to the other two of the axes; and

    using the determined physical variables to classify the object.

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