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Device and method for positioning by means of triangulation

  • US 10,166,874 B2
  • Filed: 02/06/2015
  • Issued: 01/01/2019
  • Est. Priority Date: 08/09/2012
  • Status: Expired due to Fees
First Claim
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1. A system comprising a vehicle and an induction charging unit, the induction charging unit comprising a primary coil and the vehicle comprising a secondary coil and wherein, during a charging operation in a charging position, electric power is inductively transmissible from the primary coil to the secondary coil, in the charging position, the secondary coil being situated in a preferred spatial position area with respect to the primary coil, wherein, for setting the charging position,wherein the system is configured to measure a plurality of magnetic field vectors generated by a corresponding plurality of antennas and, based on measured intensities of the plurality of magnetic field vectors, the system iteratively detects a location position by means of triangulating the plurality of antennas, wherein the location position describes a time-dependent spatial position of the secondary coil with respect to the primary coil, andbased on the iteratively-detected location position and the charging position, the system iteratively detects a travel trajectory, along which the location position of the charging position is approximated.

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