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HYBRID FOREIGN OBJECT DETECTION (FOD) LOOP ARRAY BOARD

  • US 20180072166A1
  • Filed: 09/14/2016
  • Published: 03/15/2018
  • Est. Priority Date: 09/14/2016
  • Status: Active Grant
First Claim
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1. An apparatus for detecting a presence of a metallic and/or a ferromagnetic object over a region for wirelessly transferring power to charge an electric vehicle, the apparatus comprising:

  • a plurality of foreign object detection (FOD) loops arranged in an array over a charging area, at least a portion of the plurality of FOD loops being in a first configuration and at least a portion of the plurality of FOD loops being in a second configuration different than the first configuration based on a value indicative of an amount of magnetic coupling between one or more charging coils in the charging area and a respective one the plurality of FOD loops within a corresponding area of the array.

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