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Occupant protection device

  • US 8,386,130 B2
  • Filed: 11/01/2007
  • Issued: 02/26/2013
  • Est. Priority Date: 02/07/2007
  • Status: Active Grant
First Claim
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1. An occupant protection device, comprising:

  • an input signal acquisition unit for acquiring acceleration signals or angular velocity signals from sensors installed in a vehicle;

    a digital signal processing unit for generating an output signal in a time series of the acceleration signals or angular velocity signals composed of consecutive first, second and third intervals including a plurality of points by changing a multiplication factor of the second interval in comparison with the first and third intervals with respect to a vibration component and a collision component and by attenuating the vibration component by controlling a delay time for the collision component; and

    a status determination unit for determining a collision or rollover of the vehicle based on the output signal.

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