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Patent Searching and Data


Title:
METHOD FOR ASSIGNING COMMUNICATION ID AND BATTERY PACK PROVIDING THE METHOD
Document Type and Number:
WIPO Patent Application WO/2022/145688
Kind Code:
A1
Abstract:
The present invention relates to a method for assigning a communication ID and a battery pack providing the method. The battery pack of the present invention is a battery pack in which a plurality of battery modules including a plurality of serially-connected battery cells are serially connected to one another, and includes a plurality of slave BMSs that manage the plurality of battery modules, and a master BMS that controls the plurality of slave BMSs so that the plurality of battery modules are charged after a predetermined battery module is discharged, and that receives, from the plurality of slave BMSs, data indicating a first cell voltage before charging of the battery cells and a second cell voltage after charging of the battery cells. The master BMS estimates a connection order of the plurality of battery modules by determining, as a battery module located at an upper potential adjacent to the discharged battery module, a battery module including a low voltage battery cell of which the second cell voltage is lower than the first cell voltage, and assigns a communication ID of each of the plurality of slave BMSs on the basis of the estimated connection order of the plurality of battery modules.

Inventors:
YOON HO BYUNG (KR)
Application Number:
PCT/KR2021/015953
Publication Date:
July 07, 2022
Filing Date:
November 04, 2021
Export Citation:
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Assignee:
LG ENERGY SOLUTION LTD (KR)
International Classes:
H02J7/00; H01M10/42; H04L61/00
Foreign References:
KR20200086956A2020-07-20
KR101156342B12012-06-13
KR20180049734A2018-05-11
US9446679B22016-09-20
EP3654439A12020-05-20
Attorney, Agent or Firm:
YOU ME PATENT AND LAW FIRM (KR)
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