Title:
二次電池状態検出装置および二次電池状態検出方法
Document Type and Number:
Japanese Patent JP7028781
Kind Code:
B2
Abstract:
[Problem] Accurately detecting a full charge of a secondary battery even in cases in which a voltage generated by an alternator changes.[Solution] A secondary battery state detection device 1 for detecting the state of a secondary battery includes at least one processor (CPU 10a) and at least one memory (ROM 10b, RAM 10c) that is communicably connected to the at least one processor. The at least one processor reads a set of instructions stored in the at least one memory, and executes detection process in which a charging voltage is detected, the charging voltage being generated when an alternator that generates an adjustable voltage charges the secondary battery; computation process in which a charging resistance is calculated as an internal resistance of the secondary battery when the alternator charges the secondary battery; and estimation processing in which a state of charge of the secondary battery is estimated on the basis of the charging voltage detected by the detection process and on the charging resistance calculated by the computation process.
Inventors:
Noriyasu Iwane
Atsushi Higuchi
Atsushi Higuchi
Application Number:
JP2018540340A
Publication Date:
March 02, 2022
Filing Date:
September 25, 2017
Export Citation:
Assignee:
THE FURUKAW ELECTRIC CO.,LTD.
Furukawa as Co., Ltd.
Furukawa as Co., Ltd.
International Classes:
G01R31/387; G01R31/367; G01R31/382; G01R31/389; H01M10/48; H02J7/00
Domestic Patent References:
| JP2009201197A | ||||
| JP53127618A |
Attorney, Agent or Firm:
Takuya Saito
Kimura Kiyoshi
Mihiko Emura
Kimura Kiyoshi
Mihiko Emura