US 12,176,746 B2
Monitoring method, device, and system for low-voltage vehicle battery, server, and medium
Zhujun Yan, Shanghai (CN); Degang Xu, Shanghai (CN); Bohong Xiao, Shanghai (CN); Litao Fu, Shanghai (CN); Ming Chen, Shanghai (CN); and Weichao Tian, Shanghai (CN)
Assigned to NIO TECHNOLOGY (ANHUI) CO., LTD, Hefei (CN)
Filed by NIO TECHNOLOGY (ANHUI) CO., LTD, Hefei (CN)
Filed on Nov. 24, 2021, as Appl. No. 17/534,606.
Claims priority of application No. 202011348696.9 (CN), filed on Nov. 26, 2020.
Prior Publication US 2022/0166238 A1, May 26, 2022
Int. Cl. H02J 7/00 (2006.01); G01R 31/367 (2019.01); G01R 31/371 (2019.01); G01R 31/3835 (2019.01); G01R 31/387 (2019.01); G01R 31/392 (2019.01)
CPC H02J 7/0048 (2020.01) [G01R 31/367 (2019.01); G01R 31/371 (2019.01); G01R 31/3835 (2019.01); G01R 31/387 (2019.01); G01R 31/392 (2019.01); H02J 7/00032 (2020.01); H02J 7/00712 (2020.01)] 12 Claims
OG exemplary drawing
 
1. A monitoring method for a low-voltage vehicle battery, wherein the monitoring method comprises:
obtaining, in response to a received battery anomaly analysis request, an electric energy-related parameter of the low-voltage vehicle battery from the battery anomaly analysis request; and
determining, based on a result of comparison between the electric energy-related parameter and a preset electric energy parameter threshold, whether a capacity of the low-voltage vehicle battery is anomalous,
wherein the battery anomaly analysis request is request information output by a vehicle device during a vehicle standstill and when it is detected that a battery voltage of the low-voltage vehicle battery is less than or equal to a preset voltage threshold,
the electric energy-related parameter comprises a battery voltage and a state of charge of the low-voltage vehicle battery, and the electric energy parameter threshold comprises a battery voltage threshold and a state of charge threshold.