Title:
CONTACTOR MANAGEMENT METHOD AND BATTERY SYSTEM PROVIDING SAME
Document Type and Number:
WIPO Patent Application WO/2022/039409
Kind Code:
A1
Abstract:
The present invention relates to a contactor management method and a battery system for providing the method, the battery system comprising: a main contactor connected between a battery pack and an external device; a pre-charge contactor connected in parallel with the main contactor; a voltage measuring unit measuring an operating voltage supplied to the main contactor; and a control unit determining an open event of the main contactor on the basis of a change in the operating voltage measured by the voltage measuring unit, wherein when the open event occurs, the control unit determines the level of a driving signal which controls the operating voltage to be applied to the main contactor in a driving mode in which a vehicle is driving, and when the level of the driving signal is an enable signal, the control unit closes the pre-charge contactor and then closes the main contactor, and opens the pre-charge contactor after a predetermined time elapses in the closed state of the main contactor.
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Inventors:
KIM SOOKWON (KR)
Application Number:
PCT/KR2021/010007
Publication Date:
February 24, 2022
Filing Date:
July 30, 2021
Export Citation:
Assignee:
LG ENERGY SOLUTION LTD (KR)
International Classes:
B60L53/14; B60L3/00; B60L58/10
Foreign References:
| KR20170097481A | 2017-08-28 | |||
| KR20180008224A | 2018-01-24 | |||
| KR20170002298A | 2017-01-06 | |||
| JP2019122207A | 2019-07-22 | |||
| US20200195016A1 | 2020-06-18 | |||
| KR20200104789A | 2020-09-04 |
Other References:
See also references of EP 4029721A4
Attorney, Agent or Firm:
YOU ME PATENT AND LAW FIRM (KR)
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