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Method and apparatus for providing refill or bleed alerts in a tire pressure monitoring system

  • US 7,092,804 B2
  • Filed: 07/16/2004
  • Issued: 08/15/2006
  • Est. Priority Date: 07/16/2004
  • Status: Expired due to Fees
First Claim
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1. A method of operating a tire pressure monitoring system for a vehicle comprising:

  • selecting a refill pressure threshold;

    monitoring a tire pressure;

    calculating a difference between said tire pressure and said refill pressure threshold when said tire pressure falls below said refill pressure threshold;

    determining a time period based on said difference; and

    generating a refill alert when said difference remains approximately constant during said time period.

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