US 12,322,987 B2
Battery management system and battery management method
Junta Izumi, Nagoya (JP); Kenji Kimura, Nagoya (JP); Masakazu Habu, Toyota (JP); Masanosuke Sufu, Toyota (JP); and Makito Muramatsu, Toyota (JP)
Assigned to TOYOTA JIDOSHA KABUSHIKI KAISHA, Toyota (JP)
Filed by TOYOTA JIDOSHA KABUSHIKI KAISHA, Toyota (JP)
Filed on Feb. 25, 2022, as Appl. No. 17/681,172.
Claims priority of application No. 2021-048294 (JP), filed on Mar. 23, 2021.
Prior Publication US 2022/0311248 A1, Sep. 29, 2022
This patent is subject to a terminal disclaimer.
Int. Cl. H02J 7/00 (2006.01)
CPC H02J 7/0013 (2013.01) [H02J 7/00034 (2020.01); H02J 7/0048 (2020.01); H02J 7/005 (2020.01)] 6 Claims
OG exemplary drawing
 
1. A battery management system comprising:
battery groups each including a plurality of batteries;
a power converter electrically connected between the plurality of batteries and an electric power system; and
a control device that controls operation of the power converter in accordance with a demand response request from the electric power system, to cause charging and discharging of the plurality of batteries included in the battery groups, wherein
the battery groups include a first battery group and a second battery group that is less than or equal to the first battery group in terms of the number of types of ranks of batteries included in each battery group, the ranks each represent a degree of battery degradation, and
the control device suppresses charging and discharging of the plurality of batteries included in the first battery group, relative to charging and discharging of the plurality of batteries included in the second battery group.