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:
Oct. 20, 2026

Filed:

Aug. 10, 2023
Applicant:

Toyota Jidosha Kabushiki Kaisha, Toyota, JP;

Inventors:

Tatsuya Fukami, Toyota, JP;

Kenji Sato, Kasugai, JP;

Hiroaki Mori, Ogaki, JP;

Assignee:
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
H01M 8/04858 (2016.01); B60L 50/51 (2019.01); B60L 58/30 (2019.01);
U.S. Cl.
CPC ...
H01M 8/04947 (2013.01); B60L 50/51 (2019.02); B60L 58/30 (2019.02); H01M 8/0494 (2013.01);
Abstract

A fuel cell system for a load device may include a fuel cell, a battery, and a controller configured to control the fuel cell and the battery. The controller may be configured to: cumulatively calculate first accumulated electric energy generated by the fuel cell; cumulatively calculate a power generation efficiency average at the time of storage of the first accumulated electric energy; calculate required power generation efficiency to generate electric power that meets a power demand of the load device; under a first condition where the power generation efficiency average is lower than the required power generation efficiency, cause the fuel cell to generate electric power that meets the power demand; and under a second condition where the power generation efficiency average is higher, cause the fuel cell to generate electric power at a specific operating point and cause the battery to discharge deficient electric power.


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Fukami, Tatsuya. (2026). Fuel cell system (U.S. Patent No. 12770903). U.S. Patent and Trademark Office. https://idiyas.com/patent/badge/12770903

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