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1. (WO2017205878) CHECKING ALIGNMENT OF INDUCTIVE CHARGE PADS IN MOTION

Pub. No.:    WO/2017/205878    International Application No.:    PCT/US2017/035066
Publication Date: Fri Dec 01 00:59:59 CET 2017 International Filing Date: Wed May 31 01:59:59 CEST 2017
IPC: B60L 11/18
Applicants: WIRELESS ADVANCED VEHICLE ELECTRIFICATION, INC.
Inventors: LETHELLIER, Patrice
BALL, Steve
HARPER, Marcellus
MASQUELIER, Michael
WU, Hunter
Title: CHECKING ALIGNMENT OF INDUCTIVE CHARGE PADS IN MOTION
Abstract:
An approach module (202) determines that a wireless power transfer ("WPT") secondary pad (128) on a vehicle (140) approaching a WPT primary pad (126) is within an approach distance threshold from the primary pad (126). A pulse module (204) generates an electrical alignment pulse in the primary or secondary pad (126, 128) in response to determining that the secondary pad (128) is within the approach distance. A measurement module (206) determines an amount of magnetic coupling between the primary pad (126) and the secondary pad (128), and a feedback module (208) provides an alignment signal to a driver of the vehicle (140). The alignment signal represents magnetic coupling. The pulse module (204), the measurement module (206), and the feedback module (208) continue operation to provide alignment signals indicative of an amount of magnetic coupling as the vehicle (140) moves in relation to the primary pad (126).