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. 13, 2016

Filed:

May. 22, 2012
Applicants:

Chihiro Wake, Saitama, JP;

Yuji Matsumoto, Saitama, JP;

Inventors:

Chihiro Wake, Saitama, JP;

Yuji Matsumoto, Saitama, JP;

Assignee:
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
H01M 8/04 (2016.01); B60L 1/00 (2006.01); B60L 7/14 (2006.01); B60L 11/00 (2006.01); B60L 11/18 (2006.01); B60L 15/20 (2006.01); H01M 8/10 (2016.01);
U.S. Cl.
CPC ...
H01M 8/0488 (2013.01); B60L 1/003 (2013.01); B60L 7/14 (2013.01); B60L 11/005 (2013.01); B60L 11/1803 (2013.01); B60L 11/1868 (2013.01); B60L 11/1887 (2013.01); B60L 11/1898 (2013.01); B60L 15/2009 (2013.01); H01M 8/0491 (2013.01); H01M 8/04559 (2013.01); H01M 8/04753 (2013.01); H01M 8/04955 (2013.01); B60L 2210/10 (2013.01); B60L 2240/421 (2013.01); B60L 2240/423 (2013.01); B60L 2240/547 (2013.01); B60L 2240/549 (2013.01); H01M 2008/1095 (2013.01); H01M 2250/20 (2013.01); Y02E 60/50 (2013.01); Y02T 10/645 (2013.01); Y02T 10/7022 (2013.01); Y02T 10/7066 (2013.01); Y02T 10/7216 (2013.01); Y02T 10/7275 (2013.01); Y02T 90/32 (2013.01); Y02T 90/34 (2013.01);
Abstract

A fuel cell system includes an ECU that sets the fuel cell stack to a state of idling stop by lowering both a revolution speed of an air pump and a discharge current value of the fuel cell stack to less than during idling power generation within a range larger than 0, in response to a predetermined idling stop initiation condition having been satisfied during idling power generation. The ECU decreases the discharge current value further as the lowest cell voltage value CV_low of the fuel cell stack decreases so that the lowest cell voltage value CV_low does not fall below a cancellation threshold B, with an event of the lowest cell voltage CV_low of the fuel cell stack having fallen below the cancellation threshold B as a cancellation condition of idling stop.


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