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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 9373860 B1

PDFFull Text
Date of Patent:
Jun. 21, 2016

Filed:

Dec. 11, 2013

Method and apparatus for diagnosing fault within fuel cell stack

Applicants:

Hyundai Motor Company, Seoul, KR;

Hyundai Autron Co., Ltd., Seongnam, Gyeonggi-do, KR;

Inventors:

Kwi Seong Jeong, Gyeonggi-do, KR;

Sae Hoon Kim, Gyeonggi-do, KR;

Uck Soo Kim, Gyeonggi-do, KR;

Hyun-Seok Park, Gyeonggi-do, KR;

Young-hyun Lee, Gyeonggi-do, KR;

Assignee:

Kangnam University Industry-Academia Cooperation Foundation, Yongon, Gyeonggi-do, KR;

Attorneys:

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

Peter F. Corless

Primary Examiner:

Robert Grant

Int. Cl.
CPC ...
G01N 27/416 (2006.01); H01M 8/04 (2016.01);
U.S. Cl.
CPC ...
H01M 8/04679 (2013.01); H01M 8/04492 (2013.01); H01M 8/04649 (2013.01); Y02E 60/50 (2013.01);
Abstract

To diagnose a fault of a fuel cell stack, an alternating current having a first optimal frequency of a first frequency domain to diagnose a drop in cell voltage and an alternating current having a second optimal frequency of a second frequency domain to diagnose a cause of the drop in cell voltage are supplied to the fuel cell stack are provided. A distortion rate is then calculated based on voltage of the fuel cell stack according to the alternating current of the first optimal frequency, and the drop in cell voltage is diagnosed based on the calculated distortion rate. Also, impedance is calculated based on voltage and a current of the fuel cell stack according to the alternating current of the second optimal frequency and amount of water is calculated based on the calculated in the fuel cell stack, and the cause of the drop in cell voltage is diagnosed based on the calculated impedance and amount of water.

Find Patent Forward Citations

Jeong, Kwi. (2016). Method and apparatus for diagnosing fault within fuel cell stack (U.S. Patent No. 9373860). U.S. Patent and Trademark Office. https://idiyas.com/patent/badge/9373860

Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile

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