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.

Date of Patent:
Jul. 29, 2025

Filed:

Oct. 01, 2019
Applicant:

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

Inventors:

Yuan Zhang, Canton, MI (US);

Rui Wang, Canton, MI (US);

Xu Wang, Northville, MI (US);

Assignee:

FORD GLOBAL TECHNOLOGIES, LLC, Dearborn, MI (US);

Attorneys:
Primary Examiner:
Int. Cl.
CPC ...
G07C 5/08 (2006.01); B60L 50/60 (2019.01); B60L 58/10 (2019.01); G01R 31/364 (2019.01);
U.S. Cl.
CPC ...
G07C 5/0808 (2013.01); B60L 50/60 (2019.02); B60L 58/10 (2019.02); G01R 31/364 (2019.01);
Abstract

A power distribution system includes a contactor between a traction battery and a high-voltage bus. The system includes a controller configured to generate a contactor status to determine if the contactor is operating as commanded. The controller identifies a contactor as closed responsive to a rate of change of a voltage difference between a traction battery voltage and a high-voltage bus voltage over each of a predetermined number of time intervals being within a predetermined range.


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