US 12,444,777 B2
System and method for battery management
Shusaku Nakata, Kariya (JP); Shogo Shigemori, Kariya (JP); Tatsuhiro Numata, Kariya (JP); and Tetsuya Watanabe, Kariya (JP)
Assigned to DENSO CORPORATION, Kariya (JP)
Filed by DENSO CORPORATION, Kariya (JP)
Filed on Aug. 26, 2022, as Appl. No. 17/896,203.
Claims priority of application No. 2021-139729 (JP), filed on Aug. 30, 2021.
Prior Publication US 2023/0065084 A1, Mar. 2, 2023
Int. Cl. H01M 10/42 (2006.01); B60L 58/10 (2019.01); G01R 31/371 (2019.01); G01R 31/3842 (2019.01); G01R 31/392 (2019.01); H01M 10/48 (2006.01); H02J 7/00 (2006.01); H04W 76/15 (2018.01); H04W 76/19 (2018.01); H04W 76/30 (2018.01)
CPC H01M 10/425 (2013.01) [B60L 58/10 (2019.02); G01R 31/371 (2019.01); G01R 31/3842 (2019.01); G01R 31/392 (2019.01); H01M 10/48 (2013.01); H02J 7/00032 (2020.01); H02J 7/0047 (2013.01); H02J 7/007 (2013.01); H04W 76/15 (2018.02); H04W 76/19 (2018.02); H04W 76/30 (2018.02); H01M 2010/4271 (2013.01); H01M 2010/4278 (2013.01); H01M 2220/20 (2013.01)] 8 Claims
OG exemplary drawing
 
1. A battery management system comprising:
monitoring devices arranged in a housing accommodating a battery and configured to monitor the battery and acquire battery monitoring information that includes information indicating a state of the battery; and
a controller configured to perform wireless communication with each of the monitoring devices via a wireless communication connection and execute a predetermined process based on the battery monitoring information, wherein
the controller is configured to transmit a disconnection instruction to each of the monitoring devices to disconnect the wireless communication connection,
each of the monitoring devices is configured to periodically execute a requesting operation to request for establishment of the wireless communication connection after disconnection of the wireless communication connection,
the controller is configured to accept the requesting operation to establish the wireless communication connection,
the controller and each of the monitoring devices are configured to perform a periodic communication of the battery monitoring information via the established wireless communication connection,
each of the monitoring devices is configured to determine start timing of the requesting operation based on reception timing of the disconnection instruction so that at least some of timings of requesting operations of the monitoring devices do not overlap with each other,
the controller is configured to transmit the disconnection instruction at different timings for each monitoring device, and
each of the monitoring devices is configured to determine the start timing of the requesting operation by setting an offset time from the reception timing of the disconnection instruction to a start of the requesting operation.