US 12,216,175 B2
Storage battery monitoring system and method
Huixiu Luo, Ningde (CN); Yu Liu, Ningde (CN); Qidong Lou, Ningde (CN); and Qiandeng Li, Ningde (CN)
Assigned to CONTEMPORARY AMPEREX TECHNOLOGY (HONG KONG) LIMITED, Hong Kong (CN)
Appl. No. 17/433,998
Filed by CONTEMPORARY AMPEREX TECHNOLOGY (HONG KONG) LIMITED, Hong Kong (CN)
PCT Filed Feb. 25, 2020, PCT No. PCT/CN2020/076545
§ 371(c)(1), (2) Date Aug. 25, 2021,
PCT Pub. No. WO2020/173421, PCT Pub. Date Sep. 3, 2020.
Claims priority of application No. 201910142835.3 (CN), filed on Feb. 26, 2019.
Prior Publication US 2022/0137152 A1, May 5, 2022
Int. Cl. H01M 10/42 (2006.01); G01R 31/396 (2019.01); H01M 10/48 (2006.01)
CPC G01R 31/396 (2019.01) [H01M 10/482 (2013.01); H01M 2010/4278 (2013.01)] 15 Claims
OG exemplary drawing
 
1. A storage battery monitoring system, comprising: n cell monitoring cells (CMCs), a control module, and at least two daisy chain buses; wherein n is an integer greater than or equal to 2;
the n CMCs are configured to monitor a plurality of cell modules electrically connected in a storage battery, and each CMC is configured to monitor at least one of the plurality of cell modules; the n CMCs are connected to the control module through each of the at least two daisy chain buses;
the control module is configured to receive monitoring data of the plurality of cell modules uploaded by the n CMCs through a transmission path formed by at least one of the at least two daisy chain buses;
the control module is further configured to identify a fault location according to the monitoring data when a fault occurring to the transmission path is detected, and adjust the transmission path according to the fault location so as to receive the monitoring data;
the at least two daisy chain buses comprise a first daisy chain bus and a second daisy chain bus;
the fault location comprises a first fault location between a k-th CMC and a k+1-th CMC of the first daisy chain bus, and a second fault location between a k+1+a-th CMC and a k+2+a-th CMC of the second daisy chain bus, k being an integer greater than or equal to 1, a being an integer greater than or equal to 0, and k+2+a≤n; and
the control module is further configured to adjust the transmission path based on an adjustment basis to obtain an adjusted transmission path, the adjustment basis comprising:
switching transmission of the monitoring data from a line between the k-th CMC and the k+1-th CMC of the first daisy chain bus to a line between a k-th CMC and a k+1-th CMC of the second daisy chain bus; and
switching transmission of the monitoring data from a line between the k+1+a-th CMC and the k+2+a-th CMC of the second daisy chain bus to a line between a k+1+a-th CMC and a k+2+a-th CMC of the first daisy chain bus.