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:
Dec. 10, 2024

Filed:

Dec. 28, 2021
Applicant:

Toyota Motor Engineering & Manufacturing North America, Inc., Plano, TX (US);

Inventors:

Matthew K. McClory, Aliso Viejo, CA (US);

Daniel Charles Folick, Long Beach, CA (US);

Dakota Kelley, Garland, TX (US);

Attorneys:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
H01M 8/04858 (2016.01); G01R 31/389 (2019.01); G01R 31/52 (2020.01); H01M 8/04537 (2016.01); H01M 8/04992 (2016.01);
U.S. Cl.
CPC ...
H01M 8/04952 (2016.02); G01R 31/389 (2019.01); G01R 31/52 (2020.01); H01M 8/04589 (2013.01); H01M 8/04649 (2013.01); H01M 8/04656 (2013.01); H01M 8/0491 (2013.01); H01M 8/04992 (2013.01);
Abstract

Systems and methods for monitoring the isolation resistance of one or more fuel cells are described herein. In one example, a system includes a current transformer having a hollow core. First and second portions of a load line from a fuel cell are located within the hollow core. The first portion of the load line is electrically between an anode of a fuel cell and an electrical load, while the second portion of the load line being electrically between a cathode of the fuel cell and the electrical load. The current transformer is configured to output an electrical signal proportional to a current passing through the hollow core. This electrical signal can then be used to determine the isolation resistance of the fuel cell.


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