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Seat belt system having occupant sensing device

  • US 7,299,119 B2
  • Filed: 03/15/2005
  • Issued: 11/20/2007
  • Est. Priority Date: 03/16/2004
  • Status: Expired due to Fees
First Claim
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1. A seat belt system for a vehicle, the seat belt system comprising:

  • a collision predicting device that senses an imminent collision of the vehicle before the collision actually takes place;

    an occupant sensing device configured to determine an occupant state on a seat of the vehicle;

    a seat belt configured to restrain an occupant to the seat;

    a seat belt drive device configured to retract and extend the seat belt;

    a seat belt control device configured to drive the seat belt drive device to retract the seat belt and to achieve a corresponding tension of the seat belt, which corresponds to the occupant, based on a signal outputted from the collision predicting device and occupant information outputted from the occupant sensing device; and

    a buckle moving device configured to move a position of a buckle, which is connected to a tongue, that is in turn, connected to the seat belt, wherein;

    the occupant sensing device is configured to sense a fastening state of the seat belt;

    the seat belt control device is configured so that, when the seat belt control device drives the seat belt drive device to retract the seat belt and to achieve the corresponding tension of the seat belt, which correspond to the occupant, the seat belt control device outputs an operation command to the buckle moving device to move the position of the buckle based on fastening state information that indicates the fastening state of the seat belt, which is sensed by the occupant sensing device; and

    the buckle moving device is configured to move the position of the buckle to change a direction of the tension of the seat belt.

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