Title:
BATTERY PACK CHARGING SYSTEM, CONTROL METHOD THEREFOR, APPARATUS, UNIT, AND STORAGE MEDIUM
Document Type and Number:
WIPO Patent Application WO/2023/155346
Kind Code:
A1
Abstract:
A battery pack charging system and a control method therefor, an apparatus, a control unit, and a storage medium. The battery pack charging system comprises a battery pack (101), a charging apparatus (102), a negative pulse absorption branch (103), and a control unit (104); the negative pulse absorption branch comprises a transfer switch (S1), a power resistor (R1) connected in series with the transfer switch, and a super capacitor (C1) connected in series with the power resistor. The control method comprises: monitoring an SOC value of the battery pack while carrying out negative pulse charging on the battery pack; controlling the transfer switch to close every time the SOC value is increased by a preset value, so as to enable the power resistor and the super capacitor to absorb discharge energy of the battery pack; and controlling the transfer switch to open after the transfer switch has been closed for a preset duration, so as to accelerate depolarization speed during the negative pulse charging.
Inventors:
MA HANG (CN)
WANG XINGCHANG (CN)
TIAN WEI (CN)
LU FANGYOU (CN)
WANG XINGCHANG (CN)
TIAN WEI (CN)
LU FANGYOU (CN)
Application Number:
PCT/CN2022/099233
Publication Date:
August 24, 2023
Filing Date:
June 16, 2022
Export Citation:
Assignee:
CONTEMPORARY AMPEREX TECHNOLOGY CO LTD (CN)
International Classes:
H01M10/44; H02J7/00
Foreign References:
| CN114221422A | 2022-03-22 | |||
| CN86100510A | 1987-08-26 | |||
| CN111786447A | 2020-10-16 | |||
| CN110581572A | 2019-12-17 | |||
| US20100111706A1 | 2010-05-06 |
Attorney, Agent or Firm:
BEIJING WEIFEI LIANCHUANG INTELLECTUAL PROPERTY AGENCY CO., LTD. (CN)
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