Title:
BATTERY EQUALIZATION METHOD AND SYSTEM, VEHICLE, STORAGE MEDIUM, AND ELECTRONIC DEVICE
Document Type and Number:
WIPO Patent Application WO/2019/042365
Kind Code:
A1
Abstract:
A battery equalization method and system, a vehicle, a storage medium, and an electronic device. The battery equalization system comprises: equalization modules (303), acquisition modules (302), and control modules (301). Each control module (301) is connected, by means of one channel (305), to the acquisition module (302) and the equalization module (303) corresponding to the same cell, and the channel (305) is multiplexed by the acquisition module (302) and the equalization module (303) by time. The method comprises: control modules (301) obtain SOC values of cells in a battery pack (304); the control modules (301) determine reference SOC values according to the SOC values of the cells in the battery pack (304); the control modules (301) determine, according to the SOC value of at least one cell in the battery pack (304) and to the reference SOC values, cells needing to be equalized. The system improves the utilization rate of the channels of the control modules, and avoids the impact of equalizing current on precision of cell information acquisition when the cell information acquisition and equalization are performed simultaneously, and the obtained SOC values are accurate, thereby making the determined cells needing to be equalized also accurate.
Inventors:
LUO HONGBIN (CN)
WANG CHAO (CN)
SHEN XIAOFENG (CN)
ZENG QIUYONG (CN)
LIU YUANHONG (CN)
ZHANG XIANG (CN)
WANG CHAO (CN)
SHEN XIAOFENG (CN)
ZENG QIUYONG (CN)
LIU YUANHONG (CN)
ZHANG XIANG (CN)
Application Number:
PCT/CN2018/103274
Publication Date:
March 07, 2019
Filing Date:
August 30, 2018
Export Citation:
Assignee:
BYD CO LTD (CN)
International Classes:
H02J7/00
Foreign References:
| CN207241459U | 2018-04-17 | |||
| CN102437613A | 2012-05-02 | |||
| CN102496979A | 2012-06-13 | |||
| CN105140981A | 2015-12-09 | |||
| CN104852435A | 2015-08-19 | |||
| CN106026292A | 2016-10-12 | |||
| JP2017073911A | 2017-04-13 | |||
| JP2013021821A | 2013-01-31 |
Attorney, Agent or Firm:
TSINGYIHUA INTELLECTUAL PROPERTY LLC (CN)
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