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Title:
CHARGE CONTROL DEVICE, CORRECTION METHOD OF REMAINING BATTERY CAPACITY, AND PROGRAM
Document Type and Number:
Japanese Patent JP2021087320
Kind Code:
A
Abstract:
To further improve the accuracy of estimating the remaining capacity of a rechargeable battery.SOLUTION: A charge control device 10 includes a battery voltage measurement IC 132 that measures an output voltage of a secondary battery 150, a remaining capacity estimation unit 134 that estimates the remaining capacity of the secondary battery 150 from the output voltage measured by the battery voltage measurement IC 132, a charge control IC 131 that changes charge parameters when a state of charge of the secondary battery 150 satisfies predetermined conditions, and a first correction unit 112 that corrects a value of the remaining amount of the secondary battery 150 estimated when the predetermined condition is met.SELECTED DRAWING: Figure 1

Inventors:
KITAMURA SHIGEKI
SUZUKI HIDEO
SAITO YOHEI
Application Number:
JP2019216009A
Publication Date:
June 03, 2021
Filing Date:
November 29, 2019
Export Citation:
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Assignee:
CASIO COMPUTER CO LTD
International Classes:
H02J7/00; H01M10/44; H01M10/48; H02J7/04
Domestic Patent References:
JP2017225225A2017-12-21
JP2020072555A2020-05-07
Foreign References:
WO2018181489A12018-10-04
Attorney, Agent or Firm:
Kimura Mitsuru