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Method and device for determining a state of motion of a vehicle comprising an acceleration sensor

  • US 9,234,910 B2
  • Filed: 08/21/2009
  • Issued: 01/12/2016
  • Est. Priority Date: 08/25/2008
  • Status: Active Grant
First Claim
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1. A method for determining a state of motion of a vehicle based on information relating to only a single axis of only one single axis acceleration sensor, comprising:

  • determining a vibration signal representative of vibrations of the vehicle based only on an axial acceleration, wherein the axial acceleration is determined to be an acceleration along an axis oblique to the direction of travel, andwherein the axial acceleration is determined from a measurement signal output by the only one single axis acceleration sensor measuring the single axis;

    determining at least one of a predefined upper threshold value and a predefined lower threshold value as a function of at least one of a GPS signal of a GPS module and a speed signal of a speed signal generator;

    comparing the vibration signal with the predefined upper threshold value and with the predefined lower threshold value; and

    determining whether the vehicle is stationary or whether the vehicle is moving as a function of the comparison of the vibration signal with the predefined upper threshold value and with the predefined lower threshold value,wherein the single axis is oblique to a direction of travel of the vehicle.

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