Device and method for positioning by means of triangulation
First Claim
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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Accused Products
Abstract
A system includes a vehicle and an induction charging unit, where the induction charging unit includes a primary coil and the vehicle includes a secondary coil. 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, such that, for setting the charging position, by means of electromagnetic distance and angle measuring, by triangulation, the system detects a location position which describes a time-dependent spatial position of the secondary coil with respect to the primary coil. Moreover, by means of the location position and the charging position, the system detects at least a partial travel trajectory, along which the location position of the charging position can be approximated.
7 Citations
14 Claims
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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, and based 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.
Specification