Title:
METHOD FOR DETECTING ABNORMALITY IN CHARGING SWITCH UNIT, AND BATTERY SYSTEM USING SAME
Document Type and Number:
WIPO Patent Application WO/2021/085816
Kind Code:
A1
Abstract:
A method for detecting an abnormality in a charging switch unit including a first charging switch and a second charging switch that are connected to the charging line of a battery comprises the steps of: firstly switching either the first charging switch or the second charging switch according to a switch control command; determining whether voltages at both ends of the second charging switch are similar when the switch control command is open and the first charging switch is opened first; determining that the first charging switch is normal when the voltages at both ends of the second charging switch are similar; determining whether voltages at both ends of the first charging switch are similar when the switch control command is closed and the first charging switch is closed first; and determining that the first charging switch is normal when the voltages at both ends of the first charging switch are similar.
Inventors:
KIM JISU (KR)
Application Number:
PCT/KR2020/010642
Publication Date:
May 06, 2021
Filing Date:
August 12, 2020
Export Citation:
Assignee:
LG ENERGY SOLUTION LTD (KR)
International Classes:
G01R31/327; G01R19/165; G01R31/364; H02J7/00
Foreign References:
| JP2007145208A | 2007-06-14 | |||
| JP2016192897A | 2016-11-10 | |||
| JP2010140785A | 2010-06-24 | |||
| JP2015008600A | 2015-01-15 | |||
| JP2013181822A | 2013-09-12 |
Other References:
See also references of EP 3982136A4
Attorney, Agent or Firm:
YOU ME PATENT AND LAW FIRM (KR)
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