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Method for controlling a belt pretensioner and safety arrangement comprising a belt pretensioner

  • US 8,335,614 B2
  • Filed: 07/11/2006
  • Issued: 12/18/2012
  • Est. Priority Date: 07/30/2005
  • Status: Expired due to Fees
First Claim
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1. A method for controlling a reversible seat belt pretensioner in a motor vehicle, comprising the steps:

  • detecting the speed and the steering angle of the vehicle;

    calculating an expected turning rate of the vehicle about its vertical axis from the speed and the steering angle;

    calculating an upper and a lower turning rate limiting value using the expected turning rate;

    detecting the actual turning rate of the vehicle about its vertical axis; and

    activating the seat belt pretensioner of the vehicle if the actual turning rate of the vehicle is greater than the upper turning rate limiting value or is less than the lower turning rate limiting value wherein the seat belt pretensioner is only activated if the actual turning rate of the vehicle is greater than or less than the upper or lower turning rate limiting value respectively for a predetermined period of time.

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