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:
Apr. 12, 2022
Filed:
Oct. 18, 2019
Toyota Jidosha Kabushiki Kaisha, Toyota, JP;
Kyosuke Tanemura, Nagakute, JP;
Shuji Tomura, Nagakute, JP;
Naoki Yanagizawa, Nagakute, JP;
Kazuo Ootsuka, Nagakute, JP;
Junta Izumi, Nagoya, JP;
Kenji Kimura, Miyoshi, JP;
TOYOTA JIDOSHA KABUSHIKI KAISHA, Toyota, JP;
Abstract
A power supply system includes a controller, and a plurality of battery modules. The battery modules are connected in series, according to a gate drive signal from the controller, to provide series connection, and each of the battery modules has a disconnecting device configured to force the battery module to be disconnected from the series connection. The controller is configured to estimate the internal resistance of the battery module disconnected from the series connection by the disconnecting device, from a module voltage of the battery module before the battery module is disconnected from the series connection, a module voltage immediately after the battery module is disconnected, and a module current delivered from the battery module.