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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 10511040 B1

PDFFull Text
Date of Patent:
Dec. 17, 2019

Filed:

Sep. 10, 2014

Fuel cell system

Applicant:

Nissan Motor Co., Ltd., Yokohama-shi, Kanagawa, JP;

Inventor:

Michihiko Matsumoto, Kanagawa, JP;

Assignee:

NISSAN MOTOR CO., LTD., Yokohama-shi, JP;

Attorney:

Foley & Lardner LLP

Primary Examiner:

Jonathan G Jelsma

Assistant Examiner:

Omar M Kekia

Int. Cl.
CPC ...
H01M 8/04537 (2016.01); H01M 8/04746 (2016.01); H01M 8/04858 (2016.01); B60L 58/12 (2019.01); G01R 31/3835 (2019.01); G01R 31/367 (2019.01); B60L 50/72 (2019.01); H01M 16/00 (2006.01); B60L 58/40 (2019.01); H02J 3/38 (2006.01); B60L 58/32 (2019.01);
U.S. Cl.
CPC ...
H01M 8/04619 (2013.01); H01M 8/0488 (2013.01); H01M 8/04559 (2013.01); H01M 8/04753 (2013.01); B60L 50/72 (2019.02); B60L 58/12 (2019.02); B60L 58/32 (2019.02); B60L 58/40 (2019.02); G01R 31/367 (2019.01); G01R 31/3835 (2019.01); H01M 8/04589 (2013.01); H01M 8/04888 (2013.01); H01M 16/006 (2013.01); H01M 2250/20 (2013.01); H02J 3/387 (2013.01); Y02E 60/721 (2013.01); Y02T 10/705 (2013.01); Y02T 10/7044 (2013.01); Y02T 90/32 (2013.01); Y02T 90/34 (2013.01); Y04S 10/126 (2013.01);
Abstract

A fuel cell system configured to generate an electric power by supplying an anode gas and a cathode gas to a fuel cell includes: a connection line configured to connect the fuel cell to an electric load; a converter connected to the connection line and a battery, the converter being configured to adjust a voltage of the connection line; a target output current calculating unit configured to calculate a target output current of the fuel cell in accordance with a load of the electric load; a converter control unit configured to carry out a switching control for the converter in accordance with the target output current; and a flow rate control unit configured to control a flow rate of the cathode gas to be supplied to the fuel cell in accordance with the target output current. The target output current calculating unit sets up an upper limit to the target output current on the basis of a generated electric power of the fuel cell and a guaranteed minimum voltage of the connection line for ensuring performance of the fuel cell and the electric load.

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