US 11,921,162 B2
Information processing device, information processing method, non-transitory computer readable medium, and information processing system
Hisaaki Hatano, Yokohama (JP); Takahiro Yamamoto, Fuchu (JP); Kohei Maruchi, Setagaya (JP); Kenichi Fujiwara, Kawasaki (JP); and Masatake Sakuma, Chiba (JP)
Assigned to KABUSHIKI KAISHA TOSHIBA, Tokyo (JP)
Filed by KABUSHIKI KAISHA TOSHIBA, Tokyo (JP)
Filed on Sep. 8, 2021, as Appl. No. 17/469,431.
Application 17/469,431 is a continuation of application No. PCT/JP2020/011841, filed on Mar. 17, 2020.
Prior Publication US 2021/0405120 A1, Dec. 30, 2021
Int. Cl. G01R 31/367 (2019.01); G01R 31/36 (2020.01); G01R 31/388 (2019.01); G01R 31/396 (2019.01)
CPC G01R 31/367 (2019.01) [G01R 31/3648 (2013.01); G01R 31/388 (2019.01); G01R 31/396 (2019.01)] 15 Claims
OG exemplary drawing
 
1. An information processing device, comprising:
a first state estimator configured to
select a pair of charge curve data and discharge curve data from a set of one or more first reference data and a set of one or more second reference data, based on a distribution between charge amounts and voltage values in a plurality of operation data each including a charge amount and a voltage value acquired from a target rechargeable battery that is being recharged and discharged,
the one or more first reference data each including charge curve data of a rechargeable battery and including
information on a state of the rechargeable battery, the charge curve data representing a relationship between a charge amount and a voltage value of the rechargeable battery,
the one or more second reference data each including discharge curve data of a rechargeable battery and including information on a state of the rechargeable battery, the discharge curve data representing a relationship between a charge amount and a voltage value of the rechargeable battery,
acquire information on states of rechargeable batteries corresponding to the charge curve data and the discharge curve data in the selected pair from the first reference data and the second reference data including the charge curve data and the discharge curve data in the selected pair, and
estimate a state of the target rechargeable battery based on the acquired information.