Title:
BATTERY ABNORMALITY DETECTION SYSTEM, BATTERY ABNORMALITY DETCTION METHOD, AND BATTERY ABNORMALITY DETCTION PROGRAM
Document Type and Number:
WIPO Patent Application WO/2023/095674
Kind Code:
A1
Abstract:
A battery data acquisition unit 111 acquires voltage data regarding each parallel cell block of a battery pack in which a plurality of parallel cell blocks are connected together in series, each of the parallel cell blocks including a plurality of cells connected together in parallel. An abnormality detection unit 113 detects abnormality in a parallel cell block of interest on the basis of changes in the voltage of a normal parallel cell block and changes in a voltage difference between the normal parallel cell block and the parallel cell block of interest.
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Inventors:
SADA TOMOKAZU
Application Number:
PCT/JP2022/042369
Publication Date:
June 01, 2023
Filing Date:
November 15, 2022
Export Citation:
Assignee:
PANASONIC IP MAN CO LTD (JP)
International Classes:
H02J7/00; G01R31/3835; G01R31/392; G01R31/396; H01M10/48; H02J13/00
Domestic Patent References:
| WO2017130258A1 | 2017-08-03 | |||
| WO2018043222A1 | 2018-03-08 |
Foreign References:
| US20090099799A1 | 2009-04-16 | |||
| JP2010181262A | 2010-08-19 | |||
| JP2021027031A | 2021-02-22 |
Attorney, Agent or Firm:
MUNETA Satoshi (JP)
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