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Method for determining a roadway state

  • US 8,437,907 B2
  • Filed: 10/31/2007
  • Issued: 05/07/2013
  • Est. Priority Date: 12/05/2006
  • Status: Active Grant
First Claim
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1. A method for determining a roadway state of a roadway on which a vehicle is traveling which has at least one acceleration sensor assigned to at least one wheel of the vehicle in order to determine a vertical component of an acceleration of the at least one wheel, the method comprising:

  • an evaluation unit receiving measured signals from the at least one acceleration sensor,the evaluation unit automatically determining at least one frequency spectrum from the at least one acceleration sensor,the evaluation unit automatically identifying at least one local maximum of the at least one frequency spectrum, andthe evaluation unit automatically identifying a roadway state of the roadway based on the at least one identified local maximum of the at least one frequency spectrum.

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