A vehicle (e.g. EV, BEV, PEV, PHEV) charging apparatus 300 has a wireless charge receiving pad (charging pad 110) with an electrically conductive coil 301. The charging pad is attached to a first arm 117A, which is pivotally attached to a supporting structure 107 of the vehicle about a first axis. When the batteries of the vehicle are to be charged, the first arm pivots about the first axis and the charging pad is swung through an arc between a stowed position and a deployed position. A positioning means 305 (e.g. electric motor 306) causes the first arm to pivot about the first axis to move the charging pad between the deployed and stowed positions. The charging pad is pivotally mounted on the first arm and a mechanical linkage (e.g. second arm 117B) maintains the charging pad in a horizontal orientation, parallel to a transmission coil: in the stowed position; in the deployed position; and when the charging pad is moved through a range of different deployed positions. A control means may measure an electric signal induced in the charging pad for each one of a plurality of different deployed positions, or positions of the first arm. The charging pad is moved to the position corresponding to the largest measured electric signal.
Apparatus and method for wirelessly charging batteries
2020-05-20
Patent
Electronic Resource
English
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