US 12,411,184 B2
Battery management system and battery management method for prediction, selection and charging
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 Mar. 15, 2022, as Appl. No. 17/694,776.
Claims priority of application No. 2021-048299 (JP), filed on Mar. 23, 2021.
Prior Publication US 2022/0308120 A1, Sep. 29, 2022
This patent is subject to a terminal disclaimer.
Int. Cl. G01R 31/392 (2019.01); G01R 31/36 (2020.01); G01R 31/385 (2019.01); G01R 31/396 (2019.01)
CPC G01R 31/392 (2019.01) [G01R 31/3644 (2013.01); G01R 31/385 (2019.01); G01R 31/396 (2019.01)] 4 Claims
OG exemplary drawing
 
1. A battery management system comprising:
a storage cabinet that stores a plurality of batteries;
a power converter electrically connected between the plurality of batteries stored in the storage cabinet and a power system; and
a server that controls the power converter to charge or discharge the plurality of batteries in response to a demand response request from the power system,
the server selecting, from the plurality of batteries, a first battery, the degradation degree of which has reached a reference value, and a second battery, the degradation degree of which does not reach the reference value but is predicted to reach the reference value within a predetermined period, as replacement target batteries,
and wherein the first battery includes a battery, the full charge capacity of which is smaller than a reference capacity,
when replacing the first battery, the server is configured to select, as the replacement target batteries, the second battery, the full charge capacity of which is greater than the reference capacity but is predicted to become smaller than the reference capacity within the predetermined period, in addition to the first battery.