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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 11130420 B1

PDFFull Text
Date of Patent:
Sep. 28, 2021

Filed:

Apr. 05, 2019

System and method for charge contactor weld check

Applicant:

Ford Global Technologies, Llc, Dearborn, MI (US);

Inventors:

Rui Wang, Canton, MI (US);

Yuan Zhang, Southgate, MI (US);

Xu Wang, Northville, MI (US);

Jeffery R. Grimes, Canton, MI (US);

Assignee:

Ford Global Technologies, LLC, Dearborn, MI (US);

Attorneys:

Brooks Kushman PC

David Kelley

Primary Examiner:

Nha T Nguyen

Int. Cl.
CPC ...
B60L 53/62 (2019.01); B60L 53/14 (2019.01); B60L 3/12 (2006.01); G07C 5/08 (2006.01); G01R 31/00 (2006.01); H01H 47/00 (2006.01); B60K 6/22 (2007.10);
U.S. Cl.
CPC ...
B60L 53/62 (2019.02); B60L 3/12 (2013.01); B60L 53/14 (2019.02); G01R 31/007 (2013.01); G07C 5/0825 (2013.01); H01H 47/002 (2013.01); B60K 6/22 (2013.01); B60Y 2200/91 (2013.01); B60Y 2200/92 (2013.01); B60Y 2300/91 (2013.01);
Abstract

A power distribution system for a vehicle includes contactors that selectively electrically couple a charger to a high-voltage bus. The contactors are closed at the start of a charge event in an order that alternates for successive charge events. Upon completion of the charge event, the last closed contactor at the start of the charge event is opened first and a weld check is performed. If the weld check is indicative of a welded contactor, then the weld check is performed on the other contactor.

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Wang, Rui. (2021). System and method for charge contactor weld check (U.S. Patent No. 11130420). U.S. Patent and Trademark Office. https://idiyas.com/patent/badge/11130420

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