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:
Sep. 01, 2026
Filed:
Nov. 15, 2024
Power supply system and abnormality determination method for precharge device in power supply system
Toyota Jidosha Kabushiki Kaisha, Toyota, JP;
Kazuo Kawaguchi, Kasugai, JP;
Hiroaki Sugimoto, Kitanagoya, JP;
TOYOTA JIDOSHA KABUSHIKI KAISHA, Toyota, JP;
Abstract
A power supply system of the present disclosure includes a power storage device, a power control device that includes a capacitor and is connected to the power storage device, a precharge device that executes precharge of a capacitor of the power control device in response to a system activation request, and a control device that transmits a target voltage of the capacitor to the precharge device in response to the system activation request, determines whether or not there is an abnormality in a communication state with the precharge device, determines whether or not the precharge is completed based on a detection value of a predetermined sensor when an abnormality in a communication state is not determined, determines whether or not the precharge device is normal when the precharge is completed, and determines that an abnormality has occurred in the precharge device when the precharge is not completed.