Title:
FAULT DIAGNOSIS METHOD FOR CURRENT BREAKER DEVICE, AND POWER STORAGE DEVICE
Document Type and Number:
WIPO Patent Application WO/2021/205871
Kind Code:
A1
Abstract:
A fault diagnosis method for a current breaker device 21A provided in a power supply system 12 of a vehicle 1, said method including: a supply step in which a power supply device 14 supplies power to a first electrical load 11 and a first power storage device 13; an instruction step in which the current breaker device 21A is instructed to interrupt the current, in a state in which power is being supplied from the power supply device 14 to the first electrical load 11 and the first power storage device 13; and a determination step in which the charging current of a secondary battery 20A is measured by a current sensor 21B in a state in which the current breaker device 21A has been instructed to interrupt the current, and a determination regarding whether a fault exists in the current breaker device 21A is made on the basis of the measured current value.
Inventors:
IMANAKA YUKI (JP)
Application Number:
PCT/JP2021/012108
Publication Date:
October 14, 2021
Filing Date:
March 24, 2021
Export Citation:
Assignee:
GS YUASA INT LTD (JP)
International Classes:
B60L1/00; B60L3/00; B60L50/60; B60L53/14; B60L58/10; H01M10/42; H01M10/48; H01M50/528; H02H7/00; H02H7/18; H02J7/00
Domestic Patent References:
| WO2019208410A1 | 2019-10-31 | |||
| WO2016103721A1 | 2016-06-30 |
Foreign References:
| JP2017135834A | 2017-08-03 | |||
| JP2016193634A | 2016-11-17 | |||
| JP2018129913A | 2018-08-16 | |||
| JP2012253993A | 2012-12-20 | |||
| JP2014036556A | 2014-02-24 |
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