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:
Oct. 19, 2021
Filed:
Apr. 20, 2018
Applicant:
Aisan Kogyo Kabushiki Kaisha, Obu, JP;
Inventors:
Assignee:
AISAN KOGYO KABUSHIKI KAISHA, Obu, JP;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
B60L 50/70 (2019.01); H01M 8/04664 (2016.01);
U.S. Cl.
CPC ...
B60L 50/70 (2019.02); H01M 8/04671 (2013.01); H01M 2250/20 (2013.01);
Abstract
In a fuel cell system, when fully closing an upstream-side valve, a controller performs controlled fully-closed opening-degree control that adjusts the opening degree of the upstream-side valve to a controlled fully-closing opening degree greater than zero by means of a drive mechanism. Upon determining that, during the controlled fully-closed opening-degree control, there is a leakage of oxidant gas in the upstream-side valve, the controller corrects the controlled fully-closed opening degree to the valve-closing side until reaching a zero-position opening degree at which the amount of leakage of the oxidant gas in the upstream-side valve becomes zero.