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The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.

The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.

Patent No.:

US 10449866 B1

PDFFull Text
Date of Patent:
Oct. 22, 2019

Filed:

Jun. 02, 2017

Coil alignment method for aligning a vehicle assembly coil with a ground assembly coil and electric vehicle wireless power transfer apparatus using the same

Applicants:

Hyundai Motor Company, Seoul, KR;

Kia Motors Corporation, Seoul, KR;

Konkuk University Industrial Cooperation Corp., Seoul, KR;

Inventors:

Jae Yong Seong, Gyeonggi-Do, KR;

Won Shil Kang, Seoul, KR;

Hyun Chul Ku, Seoul, KR;

Jong Gyun Lim, Seoul, KR;

Assignees:

Hyundai Motor Company, Seoul, KR;

Kia Motors Corporation, Seoul, KR;

Konkuk University Industrial Cooperation Corp., Seoul, KR;

Attorneys:

Mintz Levin Cohn Ferris Glovsky and Popeo, P.C.

Peter F. Corless

Primary Examiner:

Edward Tso

Int. Cl.
CPC ...
H01M 10/44 (2006.01); H01M 10/46 (2006.01); B60L 11/18 (2006.01); H02J 50/90 (2016.01); G01D 5/20 (2006.01); H04B 5/00 (2006.01); H02J 50/12 (2016.01); H02J 50/80 (2016.01); B60L 53/38 (2019.01);
U.S. Cl.
CPC ...
B60L 11/1829 (2013.01); B60L 53/38 (2019.02); G01D 5/20 (2013.01); G01D 5/2073 (2013.01); H02J 50/12 (2016.02); H02J 50/80 (2016.02); H02J 50/90 (2016.02); H04B 5/0037 (2013.01); H04B 5/0081 (2013.01);
Abstract

A coil alignment method performed in a coil alignment apparatus coupled to a VA controller includes: sensing magnetic field intensities induced from a ground assembly (GA) coil through a first auxiliary coil and a second auxiliary coil which are fixedly coupled to a VA coil; comparing a first magnetic field intensity sensed through the first auxiliary coil with a second magnetic field intensity sensed through the second auxiliary coil; moving the VA coil or the GA coil to a position where there is a predetermined difference or less between the first magnetic field intensity and the second magnetic field intensity; and moving at least one of the VA coil and the GA coil in a direction facing each other, so that a center point of the VA coil and a center point of the GA coil are located within a shortest distance of each other or within a certain error range of the shortest distance, while maintaining the predetermined difference or less between the first magnetic field intensity and the second magnetic field intensity.

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