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. 17, 2018
Filed:
Sep. 29, 2014
Toyota Jidosha Kabushiki Kaisha, Toyota-shi, Aichi-ken, JP;
Junichi Matsumoto, Toyota, JP;
Takashi Ogura, Miyoshi, JP;
TOYOTA JIDOSHA KABUSHIKI KAISHA, Toyota-shi, Aichi-ken, JP;
Abstract
A power storage system includes a power storage device and a controller. The power storage device includes a plurality of power storage stacks connected in series. The controller controls a discharge processing based on voltage values of power storage elements in each power storage stack. The controller determines an abnormal state according to a voltage fluctuation after the voltage values are made uniform. The controller performs a first processing when the following conditions i) and ii) are satisfied and performs a second processing when the following conditions i) and iii) are satisfied. The condition i) is that the power storage elements included in the plurality of power storage stacks are divided into a plurality of groups, each group consists of the power storage elements included in a same power storage stack. The condition ii) is that the voltage values of the power storage elements are different in each group. The condition iii) is that, in the plurality of groups in each of which the voltage values are made uniform, the voltage values are different among the plurality of groups.