US 11,817,563 B2 | ||
Battery management system wake-up method, battery management system wake-up apparatus, and storage medium | ||
Hui Jia, Ningde (CN); Xueyu Zhan, Ningde (CN); Jihai Xie, Ningde (CN); Yajie Yuan, Ningde (CN); and Jinfu Wang, Ningde (CN) | ||
Assigned to CONTEMPORARY AMPEREX TECHNOLOGY CO., LIMITED, Ningde (CN) | ||
Filed by CONTEMPORARY AMPEREX TECHNOLOGY CO., LIMITED, Ningde (CN) | ||
Filed on Jul. 14, 2022, as Appl. No. 17/864,676. | ||
Application 17/864,676 is a continuation of application No. PCT/CN2021/106358, filed on Jul. 14, 2021. | ||
Prior Publication US 2023/0020775 A1, Jan. 19, 2023 | ||
Int. Cl. H01M 10/42 (2006.01); G01R 31/3835 (2019.01); H01M 10/48 (2006.01); B60L 58/10 (2019.01); H02J 7/00 (2006.01) |
CPC H01M 10/4285 (2013.01) [B60L 58/10 (2019.02); G01R 31/3835 (2019.01); H01M 10/425 (2013.01); H01M 10/486 (2013.01); H02J 7/0029 (2013.01); H01M 2010/4271 (2013.01)] | 16 Claims |
1. A battery management system (BMS) wake-up method, comprising:
before a BMS hibernates, obtaining a first sampling voltage of a battery cell that is collected by a sampling chip, and determining, based on an extremum of the first sampling voltage, a wake-up threshold, wherein the wake-up threshold is used for the sampling chip to wake up the BMS when the BMS is hibernating; and when the BMS is hibernating, receiving a BMS wake-up signal transmitted by the sampling chip and waking up the BMS, wherein the BMS wake-up signal is transmitted by the sampling chip when it is determined that a sampling value of a second sampling voltage of the battery cell reaches the wake-up threshold, and the second sampling voltage of the battery cell is collected by the sampling chip when the BMS is hibernating; wherein determining, based on the extremum of the first sampling voltage, the weak-up threshold comprises:
determining the extremum of the first sampling voltage as a target voltage; and
determining, based on the target voltage and a voltage threshold, the wake-up threshold.
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