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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 12683409 B1

PDFFull Text
Date of Patent:
Jul. 14, 2026

Filed:

May. 01, 2025

Power supply system

Applicant:

Toyota Jidosha Kabushiki Kaisha, Toyota, JP;

Inventor:

Yohei Hosokawa, Susono, JP;

Assignee:

TOYOTA JIDOSHA KABUSHIKI KAISHA, Toyota, JP;

Attorney:

SoraIP, Inc.

Primary Examiner:

Rexford N Barnie

Assistant Examiner:

Xuan undefined Ly

Int. Cl.
CPC ...
B60L 1/00 (2006.01); B60L 7/10 (2006.01); B60L 11/18 (2006.01); B60L 58/12 (2019.01); B60L 58/19 (2019.01); B60L 58/22 (2019.01); H01M 10/42 (2006.01); H01M 50/51 (2021.01); H01M 50/512 (2021.01); H02J 7/14 (2006.01); H02J 7/24 (2006.01); H02P 3/14 (2006.01);
U.S. Cl.
CPC ...
H02J 7/1423 (2013.01); B60L 58/12 (2019.02); B60L 58/19 (2019.02); B60L 58/22 (2019.02); H01M 10/425 (2013.01); H01M 50/51 (2021.01); H01M 50/512 (2021.01); H02J 7/24 (2013.01); H01M 2010/4271 (2013.01); H01M 2220/20 (2013.01); H02J 2207/20 (2020.01);
Abstract

A power supply system includes: a first battery; a second battery having the same configuration as the first battery; auxiliary equipment connected to a low-voltage power line connected to an auxiliary battery; a series-parallel switching circuit configured to switching connection of the first and second batteries between series connection and parallel connection by turning on and off a plurality of relays; and a power converter connected to the series-parallel switching circuit and the low-voltage power line. When the first battery and the second battery are to be charged with power from a power generator, the first and second batteries are connected in series and charged when power consumption of the auxiliary equipment is equal to or greater than predetermined power, and the first and second batteries are not connected in series and are charged when the power consumption of the auxiliary equipment is less than the predetermined power.

Find Patent Forward Citations

Hosokawa, Yohei. (2026). Power supply system (U.S. Patent No. 12683409). U.S. Patent and Trademark Office. https://idiyas.com/patent/badge/12683409

Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile

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