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:
Jul. 21, 2026
Filed:
Mar. 21, 2023
Toyota Jidosha Kabushiki Kaisha, Toyota, JP;
Subaru Corporation, Tokyo, JP;
Denso Ten Limited, Kobe, JP;
Akira Umemoto, Nagakute, JP;
Shinichi Inoue, Okazaki, JP;
Shoya Shimosaka, Kobe, JP;
Yukihiko Murakami, Toyota, JP;
TOYOTA JIDOSHA KABUSHIKI KAISHA, Toyota, JP;
SUBARU CORPORATION, Tokyo, JP;
DENSO TEN Limited, Kobe, JP;
Abstract
An electric power supply device installed in a vehicle includes a relay provided between a high-voltage battery and one or more pieces of in-vehicle equipment, and a processor. The processor is configured to, based on a state of a main switch configured to operate a traveling system of the vehicle, switch on or off of the relay, and is configured to control electric power supply from the high-voltage battery to the one or more pieces of in-vehicle equipment. The processor is configured to supply electric power from the high-voltage battery to particular in-vehicle equipment during maintaining the relay on when the main switch is turned off during the relay being on and the one or more pieces of in-vehicle equipment include the particular in-vehicle equipment. The particular in-vehicle equipment is configured to operate after the main switch is turned off.