WIRELESS POWER TRANSFER ELECTRIC VEHICLE SUPPLY EQUIPMENT INSTALLATION AND VALIDATION TOOL
First Claim
1. A structure comprising a position sensing apparatus mounted on a vehicle, said position sensing apparatus comprising at least a receiver coil configured to generate a voltage in proportion to a net magnetic flux captured in a first loop and a second loop that are serially connected to each other, wherein one of said first loop and said second loop is wound clockwise and another of said first loop and second loop is wound counterclockwise.
2 Assignments
0 Petitions
Accused Products
Abstract
A non-contacting position sensing apparatus includes at least one vehicle-mounted receiver coil that is configured to detect a net flux null when the vehicle is optimally aligned relative to the primary coil in the charging device. Each of the at least one vehicle-mounted receiver coil includes a clockwise winding loop and a counterclockwise winding loop that are substantially symmetrically configured and serially connected to each other. When the non-contacting positing sensing apparatus is located directly above the primary coil of the charging device, the electromotive forces from the clockwise winding loop and the counterclockwise region cancel out to provide a zero electromotive force, i.e., a zero voltage reading across the coil that includes the clockwise winding loop and the counterclockwise winding loop.
363 Citations
20 Claims
- 1. A structure comprising a position sensing apparatus mounted on a vehicle, said position sensing apparatus comprising at least a receiver coil configured to generate a voltage in proportion to a net magnetic flux captured in a first loop and a second loop that are serially connected to each other, wherein one of said first loop and said second loop is wound clockwise and another of said first loop and second loop is wound counterclockwise.
-
14. A method of aligning a vehicle to a charging device for wireless power transfer, said method comprising:
-
mounting a position sensing apparatus on a vehicle, said position sensing apparatus comprising at least a receiver coil configured to generate a voltage in proportion to a net magnetic flux captured in a first loop and a second loop that are serially connected to each other, wherein one of said first loop and said second loop is wound clockwise and another of said first loop and second loop is wound counterclockwise; positioning said vehicle in a vicinity of a charging device for wireless power transfer; generating positional data representing a position of said vehicle relative to said charging device employing said position sensing apparatus while a primary coil in said charging device generates an alternating current (AC) magnetic field; and aligning said vehicle employing said positional data. - View Dependent Claims (15, 16, 17, 18, 19, 20)
-
Specification