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Patent Searching and Data


Title:
BATTERY EQUALIZATION SYSTEM, VEHICLE, BATTERY EQUALIZATION METHOD, AND STORAGE MEDIUM
Document Type and Number:
WIPO Patent Application WO/2019/042363
Kind Code:
A1
Abstract:
A battery equalization system, a vehicle, a battery equalization method, and a storage medium. The battery equalization system comprises a battery pack (11), acquisition circuits (12), equalization circuits (13), and controllers (14). Each controller (14) is connected, by means of one control channel (140), to the acquisition circuit (12) and the equalization circuit (13) corresponding to the same cell (111) in the battery pack (11), and the control channel (140) is multiplexed by the acquisition circuit (12) and the equalization circuit (13) by time; when the acquisition circuits (12) need to acquire parameter information of the cells (111) in the battery pack (11), the equalization circuits (13) are in an ON state; when the equalization circuits (13) need to equalize the cells (111) in the battery pack (11), the acquisition circuits (12) are in a short-circuit state. One channel is multiplexed by the controller (14) and the sampling circuit (12) of and the equalization circuit (13) of each cell (111) by time, so as to reduce the requirements for the number of channels of the controller, thereby reducing hardware costs.

Inventors:
LUO HONGBIN (CN)
WANG CHAO (CN)
SHEN XIAOFENG (CN)
ZENG QIUYONG (CN)
Application Number:
PCT/CN2018/103272
Publication Date:
March 07, 2019
Filing Date:
August 30, 2018
Export Citation:
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Assignee:
BYD CO LTD (CN)
International Classes:
B60L11/18
Foreign References:
CN102868196A2013-01-09
CN107054110A2017-08-18
CN104716720A2015-06-17
KR20160125205A2016-10-31
US20120223582A12012-09-06
Attorney, Agent or Firm:
TSINGYIHUA INTELLECTUAL PROPERTY LLC (CN)
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