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. 13, 2022
Filed:
Aug. 05, 2020
Toyota Jidosha Kabushiki Kaisha, Toyota, JP;
Takayuki Akaishi, Toyota, JP;
TOYOTA JIDOSHA KABUSHIKI KAISHA, Toyota, JP;
Abstract
A control device includes: a voltage control unit that sequentially switches a command voltage of a direct current-direct current converter between different predetermined measurement voltages to control the command voltage; an obtaining unit that obtains, for each of the measurement voltages, a first terminal voltage of a battery when constant current discharge is performed and a second terminal voltage of the battery when constant current charge is performed; and a correction unit that corrects an SOV-OCV characteristic curve indicating a relationship between the state of charge and an open circuit voltage of the battery, based on a comparison between the first terminal voltages newly obtained by the obtaining unit and the first terminal voltages immediately previously obtained by the obtaining unit and a comparison between the second terminal voltages newly obtained by the obtaining unit and the second terminal voltages immediately previously obtained by the obtaining unit.