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Seat belt device and seat belt device control method

  • US 20040212189A1
  • Filed: 08/12/2003
  • Published: 10/28/2004
  • Est. Priority Date: 12/18/2001
  • Status: Active Grant
First Claim
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1. A seat belt device comprising:

  • an obstacle detection portion that detects an obstacle in an area surrounding a vehicle;

    a collision prediction portion that predicts a probability of a collision of the vehicle with the obstacle, based on a detection signal from the obstacle detection portion;

    a pretensioner device that set with multilevel tensions retracting of a seat belt; and

    a pretensioner control portion that controls, when the collision prediction from the collision prediction portion is received, an operation of the pretensioner device such that the seat belt is retracted prior to the collision at a tension in accordance with a collision prediction level determined by the collision prediction portion.

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