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Method and system or central station for monitoring tyre condition, and for detecting the presence of chains or nails, on a vehicle

  • US 7,233,237 B2
  • Filed: 09/13/2001
  • Issued: 06/19/2007
  • Est. Priority Date: 09/15/2000
  • Status: Expired due to Term
First Claim
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1. A method for identifying a defect in the physical integrity of a tire on a vehicle, comprising steps of:

  • measuring a signal that is proportional to the speed of rotation of the tire to be monitored;

    calculating harmonic information from said signal;

    comparing the calculated harmonic information to a threshold; and

    identifying that a defect exists in the physical integrity of the tire when the threshold is exceeded by the calculated harmonic information.

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