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Method and device for monitoring tire pressure utilizing a reference value that evolves according to a predetermined function of time

  • US 8,011,236 B2
  • Filed: 04/13/2006
  • Issued: 09/06/2011
  • Est. Priority Date: 04/13/2005
  • Status: Expired due to Fees
First Claim
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1. A method for monitoring a pressure of a tire of a motor vehicle, comprising steps of:

  • measuring a pressure of the tire;

    comparing the measured pressure with a reference value that varies in accordance with a temporal law,wherein the temporal law depends on at least one of;

    a temporal benchmark,a speed of the vehicle, anda temperature of the tire, andwherein the reference value varies between first and second extreme values;

    enabling the reference value to evolve according to a first predetermined function of time, if the vehicle is running at a speed greater than a predetermined threshold speed and so long as the second extreme value is not attained; and

    enabling the reference value to evolve according to a second predetermined function of time, if the vehicle has stopped or is running at a speed less than the predetermined threshold speed and so long as the first extreme value is not attained.

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