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Systems and methods for detecting wear of brake pads

  • US 9,945,437 B2
  • Filed: 04/26/2016
  • Issued: 04/17/2018
  • Est. Priority Date: 04/17/2015
  • Status: Active Grant
First Claim
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1. A system for indicating wear of a brake pad attached to a vehicle, comprising:

  • a brake housing;

    the brake pad mechanically coupled to the brake housing;

    a sensor mechanically coupled to the brake pad, wherein the sensor determines whether the brake pad has been worn to a predetermined location by a rotating portion of a wheel;

    an on-board electronic module electrically coupled to the sensor and mechanically coupled to the vehicle, wherein the on-board electronic module comprises;

    a radio frequency antenna configured to wirelessly receive radio frequency energy from an external radio frequency transmitter located adjacent to a dashboard of the vehicle;

    an energy converter electrically coupled to the radio frequency antenna, wherein the energy converter is configured to transform radio frequency energy to supply energy;

    an internal transmitter coupled to the energy converter whereby the internal transmitter is powered by at least a portion of the supply energy; and

    memory coupled to the internal transmitter, wherein the memory stores data associated with the brake pad, wherein the internal transmitter is configured to wirelessly transmit information from the sensor and the memory to the external radio frequency transmitter via the radio frequency antenna.

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