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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 11394253 B1

PDFFull Text
Date of Patent:
Jul. 19, 2022

Filed:

Jul. 22, 2019

Systems, methods and apparatuses for guidance and alignment in electric vehicles wireless inductive charging systems

Applicant:

Witricity Corporation, Watertown, MA (US);

Inventors:

Hans Peter Widmer, Wohlenschwil, CH;

Andreas Daetwyler, Unterentfelden, CH;

Lukas Sieber, Olten, CH;

Assignee:

WiTricity Corporation, Watertown, MA (US);

Attorney:

Knobbe, Martens, Olson & Bear, LLP

Primary Examiner:

Dominic E Hawkins

Int. Cl.
CPC ...
B60L 53/126 (2019.01); H02J 50/90 (2016.01); B60L 53/36 (2019.01); B60L 53/39 (2019.01); B60L 53/38 (2019.01); G01D 5/20 (2006.01); G01R 33/02 (2006.01); G01R 33/028 (2006.01); H01F 38/14 (2006.01); H04B 5/00 (2006.01); H02J 50/10 (2016.01);
U.S. Cl.
CPC ...
H02J 50/90 (2016.02); B60L 53/126 (2019.02); B60L 53/36 (2019.02); B60L 53/38 (2019.02); B60L 53/39 (2019.02); G01D 5/204 (2013.01); G01D 5/2066 (2013.01); G01R 33/02 (2013.01); G01R 33/0206 (2013.01); G01R 33/028 (2013.01); H01F 38/14 (2013.01); H02J 50/10 (2016.02); H04B 5/0037 (2013.01); H04B 5/0087 (2013.01); H01F 2038/143 (2013.01); Y02T 10/70 (2013.01); Y02T 10/7072 (2013.01); Y02T 90/12 (2013.01); Y02T 90/14 (2013.01);
Abstract

An apparatus for determining a relative position of a wireless power transmitter from a wireless power receiver is provided. The apparatus comprises a plurality of sense coils, each configured to generate a respective signal under influence of an alternating magnetic field comprising a plurality of wave pulses, each wave pulse occurring in a respective time slot of a plurality of time slots. The apparatus further comprises a processor configured to determine the relative position of the wireless power transmitter from the wireless power receiver based on the respective signal from each of the plurality of sense coils.

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