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:
Jul. 03, 2012
Filed:
Mar. 18, 2008
Yoshinao Tatebayashi, Yokohama, JP;
Yasuhiro Harada, Yokohama, JP;
Norio Takami, Yokohama, JP;
Nobuo Shibuya, Hiratsuka, JP;
Yoshinao Tatebayashi, Yokohama, JP;
Yasuhiro Harada, Yokohama, JP;
Norio Takami, Yokohama, JP;
Nobuo Shibuya, Hiratsuka, JP;
Kabushiki Kaisha Toshiba, Tokyo, JP;
Abstract
A protection device for an assembled cell including battery modules connected in series includes protection units each of which is configured to operate using a corresponding battery module as a power supply and a management unit connected to the protection units in common, the protection unit includes a measuring unit configured to measure its own consumption current to obtain measurement data, a communication unit which transmits the measurement data to a management unit and receives setting data from the management unit, a discharging unit which discharges the corresponding battery module, and a control unit configured to control the discharging unit based on the measurement data and the setting data so that a total of the consumption current and a discharging current by the discharging unit is of a constant value among the protection units.