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.:
Date of Patent:
May. 25, 2021
Filed:
Jan. 03, 2019
Applicant:
Toyota Jidosha Kabushiki Kaisha, Toyota, JP;
Inventors:
Tornio Yamanaka, Nagoya, JP;
Kenji Umayahara, Miyoshi, JP;
Assignee:
TOYOTA JIDOSHA KABUSHIKI KAISHA, Toyota, JP;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
H01M 8/22 (2006.01); H01M 8/04082 (2016.01); H01M 8/04746 (2016.01); H01M 8/1004 (2016.01); H01M 8/0438 (2016.01); H01M 8/04537 (2016.01);
U.S. Cl.
CPC ...
H01M 8/04197 (2016.02); H01M 8/04402 (2013.01); H01M 8/04559 (2013.01); H01M 8/04761 (2013.01); H01M 8/1004 (2013.01);
Abstract
A fuel cell system includes: a fuel cell in which a plurality of cells are stacked; a voltage sensor configured to measure a cell voltage of the fuel cell; and a pressure sensor configured to measure an anode gas pressure in the fuel cell. When the cell voltage is lower than a predetermined threshold voltage, in a state in which an amount of supply of cathode gas to the fuel cell is secured, and a rate of decrease in the anode gas pressure is larger than a predetermined threshold rate, it is determined that a cross leak abnormality has occurred in the fuel cell.