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Trailer tire pressure monitoring system

  • US 7,920,058 B2
  • Filed: 11/05/2008
  • Issued: 04/05/2011
  • Est. Priority Date: 11/05/2008
  • Status: Expired due to Fees
First Claim
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1. A method of operating a tire pressure monitoring system for a trailer comprising the steps of:

  • connecting the trailer to a tow vehicle having a trailer brake controller and a tire pressure monitoring system;

    activating electromagnets on the trailer brakes to generate an electromagnetic field upon recognition of the trailer being connected to the tow vehicle by the trailer brake controller;

    exciting tire pressure sensors on the trailer in response to the electromagnetic field;

    transmitting a signal from the sensors on the trailer to the tire pressure monitoring system on the tow vehicle, the signal comprises a sensor identification;

    identifying the tire pressure sensors at the tire pressure monitoring system on the tow vehicle based on the transmitted sensor identification; and

    monitoring the tire pressure at the identified tire pressure sensors.

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