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METHOD OF TREAD WEAR SENSOR INSTALLATION IN A TIRE

  • US 20140360256A1
  • Filed: 06/07/2013
  • Published: 12/11/2014
  • Est. Priority Date: 06/07/2013
  • Status: Active Grant
First Claim
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1. A method of installing a tread wear sensor in a tire of the tire type comprising a tire carcass enclosing a tire cavity and a tire tread region on the a radially outward regions of the tire carcass, the tire further having a plurality of tread elements projecting from a base of the tire tread region, the method comprising:

  • configuring a tread wear indicator to include at least one sacrificial resistive sensor element having a known resistance value;

    affixing the at least one resistive sensor element of the tread wear indicator to a selected tread element in a sensor element orientation placing the sensor element substantially parallel to a ground engaging surface of the tread element at a known sensor depth from the ground engaging surface;

    the at least one sensor element operative to sacrificially abrade and change in resistance responsive to progressive tread wear on the one tread element to the sensor depth;

    measuring a change in resistivity in the one sensor element;

    determining tread wear status of the one selected tread element based on the measured change in resistivity of the one sensor element.

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