EV wireless charging adjustable flux angle charger
US10086715B2 · kind B2 · utility
Assignees
Inventors
Key dates
| Filing date | Apr 5, 2016 |
| Grant date | Oct 2, 2018 |
| Priority date | — |
| Expiry date | Mar 16, 2037 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY02T90/14
- WIPO fieldElectrical machinery, apparatus, energy
- WIPO sectorElectrical engineering
Abstract
A method includes detecting that a wireless charging-capable vehicle is in a charging position proximate a primary coil of a wireless charging system that is operable to wirelessly charge the vehicle via a secondary coil installed in the vehicle. The primary coil includes a top coil and a bottom coil that are substantially parallel to one another, the top coil and the bottom coil coupled to one another via a plurality of cross-coil junction units each including a switching element that routes electric current through at least a portion of one or more of the top coil and the bottom coil. The method further includes setting the switching elements such that current flowing through the primary coil produces an optimal angle of magnetic flux for wirelessly charging the vehicle given a position of the primary coil with respect to a position of the secondary coil, and causing electric current to flow through the primary coil according to the set switching elements to wirelessly charge the vehicle.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.