Title:
BATTERY MONITORING DEVICE
Document Type and Number:
WIPO Patent Application WO/2020/059699
Kind Code:
A1
Abstract:
This battery monitoring device comprises an abnormality determination unit (8) which controls the on/off of a plurality of short-circuit switches and determines whether or not an abnormality has occurred in a detection line. It is assumed that one among adjacent battery cells is a first battery cell, the short-circuit switch corresponding to the first battery cell is a first switch, the other battery cell among the adjacent battery cells is a second battery cell, and the short-circuit switch corresponding to the second battery cell is a second switch. The abnormality determination unit executes on/off control for controlling the second switch to be turned off again after the second switch is switched from off to on in a state where the first switch is turned off, detects the voltage of the first battery cell and the voltage of the second battery cell before and after performing the on/off control, and determines an abnormality of the detection line on the basis of the detected four voltage values.
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Inventors:
ISHIBE ISAO (JP)
YAMAMOTO SYUNYA (JP)
YAMAMOTO SYUNYA (JP)
Application Number:
PCT/JP2019/036348
Publication Date:
March 26, 2020
Filing Date:
September 17, 2019
Export Citation:
Assignee:
DENSO CORP (JP)
International Classes:
H02J7/00; G01R31/3835; G01R31/396; H01M10/44; H01M10/48; H02J7/02
Foreign References:
| JP2017208880A | 2017-11-24 | |||
| JP2013085354A | 2013-05-09 | |||
| JP2013011596A | 2013-01-17 |
Attorney, Agent or Firm:
SATO INTERNATIONAL PATENT FIRM (JP)
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