US 11,721,984 B2
Battery monitoring system, vehicle, battery monitoring device
Osamu Shimizu, Komaki (JP); and Takaya Koshii, Nagoya (JP)
Assigned to TOYOTA JIDOSHA KABUSHIKI KAISHA, Toyota (JP)
Filed by TOYOTA JIDOSHA KABUSHIKI KAISHA, Toyota (JP)
Filed on Nov. 15, 2021, as Appl. No. 17/526,323.
Claims priority of application No. 2020-212313 (JP), filed on Dec. 22, 2020.
Prior Publication US 2022/0200297 A1, Jun. 23, 2022
Int. Cl. G01R 31/00 (2006.01); H02J 7/00 (2006.01); B60L 58/10 (2019.01); G01R 31/371 (2019.01); G01R 31/382 (2019.01)
CPC H02J 7/00032 (2020.01) [B60L 58/10 (2019.02); G01R 31/371 (2019.01); G01R 31/382 (2019.01); H02J 7/0047 (2013.01)] 4 Claims
OG exemplary drawing
 
1. A battery monitoring system comprising:
a battery pack; and
a battery monitoring device that monitors a state of a battery cell included in the battery pack,
wherein the battery pack includes
an acquisition unit configured to acquire battery information of the battery cell,
a first storage unit configured to store the acquired battery information, and
a first communication unit configured to transmit the battery information stored in the first storage unit to the battery monitoring device, and
wherein the battery monitoring device includes
a second communication unit configured to receive the battery information transmitted from the first communication unit,
a second storage unit configured to store the received battery information,
a third storage unit configured to store initial battery information indicating a battery state at the time of manufacture of the battery pack, and
a determination unit configured to determine that the battery pack has been replaced with a new battery pack when the battery information stored in the second storage unit matches the initial battery information.