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:
Dec. 24, 2024
Filed:
Nov. 25, 2022
Toyota Jidosha Kabushiki Kaisha, Toyota, JP;
Ruri Hara, Toyota, JP;
Toshinori Okura, Toyota, JP;
TOYOTA JIDOSHA KABUSHIKI KAISHA, Toyota, JP;
Abstract
The battery inspection method includes the following. Self-discharging the battery to be inspected until a predetermined time elapses from the start of self-discharging. Detecting a voltage, a current, a temperature of the battery and an ambient temperature when the predetermined time elapses. Perform a preliminary step prior to self-discharge of the battery. Obtain preliminary step information representing the execution conditions of the preliminary step. Calculating the current convergence value from the acquired preliminary step information, the detected voltage, current, and temperature, and the detected ambient temperature by referring to a predetermined correspondence between the preliminary step information, the voltage, current, and temperature of the battery at the time when the predetermined time elapses, the ambient temperature, and the current convergence value. Determining whether a short circuit failure of the battery has occurred based on the calculated current convergence value.