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.

Date of Patent:
Jun. 06, 2017

Filed:

Feb. 27, 2015
Applicant:

Sanyo Electric Co., Ltd., Osaka, JP;

Inventors:

Yasuo Okuda, Kyoto, JP;

Kazuaki Okamoto, Chiba, JP;

Yousuke Ohtsuki, Kyoto, JP;

Attorney:
Primary Examiner:
Int. Cl.
CPC ...
H02J 7/00 (2006.01); H01M 10/42 (2006.01);
U.S. Cl.
CPC ...
H02J 7/0013 (2013.01); H02J 7/0021 (2013.01); H01M 10/4257 (2013.01); H01M 2010/4278 (2013.01); H02J 2007/0098 (2013.01);
Abstract

A rechargeable battery management unit (controller) controls a plurality of battery packs. A communication path connects the rechargeable battery management unit and the plurality of battery packs in a daisy chain for packet communication and representing a ring topology. The rechargeable battery management unit sends a fixed-length packet divided into segments so as to flow in one direction on the management data communication path, the number of segments being equal to or more than the number of battery packs. Each of the plurality of battery packs stores data related to the battery pack in a segment assigned to the battery pack in the fixed-length packet received from a battery pack preceding in the management data communication path and sends the fixed-length packet to a succeeding battery pack.


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