Title:
BATTERY MANAGEMENT DEVICE, BATTERY MANAGEMENT METHOD, BATTERY PACK, AND ELECTRIC VEHICLE
Document Type and Number:
WIPO Patent Application WO/2021/045387
Kind Code:
A1
Abstract:
A battery management device according to the present invention comprises: memory for storing a charging sequence table in which correspondence relationships between the first to mth temperature ranges, the first to mth SOC lists, and the first to mth current lists are recorded; a sensing unit for detecting the voltage, current, and temperature of a battery; and a control unit. Each of the SOC lists defines first to nth SOC ranges. The control unit determines the current SOC of the battery on the basis of the detected voltage and the detected current. The control unit determines a temperature range of interest, an SOC list of interest, and a current list of interest from the charging sequence table on the basis of the detected temperature. The control unit determines a remaining charging time, which is the time required for charging the battery to a target SOC, on the basis of the detected current, the current SOC, the SOC list of interest, and the current list of interest.
Inventors:
SEO BO-KYUNG (KR)
Application Number:
PCT/KR2020/009889
Publication Date:
March 11, 2021
Filing Date:
July 27, 2020
Export Citation:
Assignee:
LG CHEMICAL LTD (KR)
International Classes:
G01R31/387; B60L3/00; B60L58/12; G01R31/36; H01M10/42; H01M10/48
Foreign References:
| KR20120138733A | 2012-12-26 | |||
| KR20180032092A | 2018-03-29 | |||
| JP5273794B2 | 2013-08-28 | |||
| KR20190073151A | 2019-06-26 | |||
| KR20140142853A | 2014-12-15 | |||
| KR20190110759A | 2019-10-01 |
Other References:
See also references of EP 3923007A4
Attorney, Agent or Firm:
PHIL & ONZI INT'L PATENT & LAW FIRM (KR)
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