BATTERY MANAGEMENT DEVICE AND OPERATION METHOD THEREFOR

Title:

BATTERY MANAGEMENT DEVICE AND OPERATION METHOD THEREFOR

Document Type and Number:

WIPO Patent Application WO/2024/063600

Kind Code:

A1

Abstract:

A battery management device, according to one embodiment disclosed in the present document, comprises a voltage measuring unit, which measures the voltage of each of a plurality of batteries, and a controller, which can communicate with the voltage measuring unit, wherein the controller may be configured to: control the voltage measuring unit to measure the voltage of each of the plurality of battery banks at predetermined time intervals; calculate a first deviation, which is a gap between a long-term fluctuation average and a short-term fluctuation average in the voltage of each of the plurality of batteries; calculate a second deviation, which is a gap between a long-term fluctuation average and a short-term fluctuation average in the average voltage of the plurality of batteries; calculate a first diagnostic deviation for each of the plurality of batteries, which is the difference between the first deviation and the second deviation; calculate a second diagnostic deviation for each of the plurality of batteries, on the basis of a reference value obtained by multiplying a threshold constant to the second deviation of the first diagnostic deviation of each of the plurality of batteries; and diagnose, on the basis of the second diagnostic deviation of each of the plurality of batteries, an anomaly in at least one battery among the plurality of batteries.

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Inventors:

SUNG YONG CHUL (KR)
KIM CHEOL TAEK (KR)
KIM CHANG HOON (KR)
PARK HEE JU (KR)

Application Number:

PCT/KR2023/014493

Publication Date:

March 28, 2024

Filing Date:

September 22, 2023

Export Citation:

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Assignee:

LG ENERGY SOLUTION LTD (KR)

International Classes:

G01R31/36; B60L58/10; G01R19/00; G01R19/10; G01R19/30; G01R31/3835; G01R31/385; G01R31/392; G01R31/396

Domestic Patent References:

WO2021186512A1

2021-09-23

Foreign References:

KR20220074797A	2022-06-03
KR101349022B1	2014-01-09
CN114518539A	2022-05-20
JP2002334722A	2002-11-22

Attorney, Agent or Firm:

BAE, KIM & LEE IP (KR)

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