Safety systems for wireless energy transfer in vehicle applications

  • US 8,946,938 B2
  • Filed: 10/18/2011
  • Issued: 02/03/2015
  • Est. Priority Date: 09/27/2008
  • Status: Active Grant
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First Claim
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1. A vehicle powering wireless receiver, comprising:

  • a load coupled to a drive system of the vehicle;

    an electromagnetic resonator coupled to the load and configured for attachment to the vehicle, wherein the electromagnetic resonator is configured to receive power from a resonant, non-radiative wireless power source and to deliver power to the load; and

    a safety system configured to detect metal objects positioned in proximity to at least one of the power source and the electromagnetic resonator, the safety system comprising;

    a detection subsystem comprising one or more inductive loops formed of conductive material; and

    a notification subsystem coupled to the detection subsystem and configured to generate a notification signal when a metal object is detected by the detection subsystem.

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