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Title:
SOP MANAGEMENT METHOD AND APPARATUS FOR TRACTION BATTERY PACK, AND ELECTRIC VEHICLE
Document Type and Number:
WIPO Patent Application WO/2022/160337
Kind Code:
A1
Abstract:
Provided are an SOP management method and apparatus for a traction battery pack, and an electric vehicle. The SOP management method comprises: acquiring an SOP value of each parallel battery branch in a traction battery pack; and obtaining the current total SOP value of the traction battery pack according to the SOP value of each parallel battery branch. In the present application, in a multi-branch-parallel traction battery pack, an SOP value of each parallel branch is first subjected to refined estimation according to an operation condition of each parallel branch, and then the total SOP of the traction battery pack is estimated from the whole system level, and the problem of statistical distortion of the total SOP of the traction battery pack is solved by means of a distinction between primary and the secondary, thereby improving the performance of an entire vehicle, preventing an operation fault from being triggered by a traction battery, and effectively improving the safety and stability of use of the battery.

Inventors:
YAO ZHENFEI (CN)
WU SHENGXIAN (CN)
ZHANG RUIJING (CN)
XU WENHAO (CN)
Application Number:
PCT/CN2021/074659
Publication Date:
August 04, 2022
Filing Date:
February 01, 2021
Export Citation:
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Assignee:
MICROVAST POWER SYSTEMS CO LTD (CN)
MICROVAST INC (US)
International Classes:
H02J7/00
Domestic Patent References:
WO2020071734A12020-04-09
Foreign References:
CN108400393A2018-08-14
CN112078382A2020-12-15
CN108227817A2018-06-29
CN109100658A2018-12-28
GB2584293A2020-12-02
Attorney, Agent or Firm:
PSHIP FIRM,LLC (CN)
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