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Control device for a restraint device in a motor vehicle

  • US 6,032,092 A
  • Filed: 11/07/1997
  • Issued: 02/29/2000
  • Est. Priority Date: 11/07/1996
  • Status: Expired due to Term
First Claim
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1. In a motor vehicle having a longitudinal axis, a transverse axis and a restraint device, a control device for the restraint device, comprising:

  • a sensor assembly having at least three acceleration sensors with differently oriented sensitivity axes in a plane defined approximately by the longitudinal axis and the transverse axis of the vehicle, said at least three acceleration sensors supplying at least first, second and third acceleration signals; and

    an evaluation device for evaluating the acceleration signals;

    said evaluation device ascertaining a direction and an intensity of an acceleration acting upon the vehicle from at least the first and second acceleration signals;

    said evaluation device checking one of the direction and the intensity using at least the third acceleration signal; and

    said evaluation device generating a malfunction signal if one of the direction and the intensity is not confirmed by at least the third acceleration signal.

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