Login| Sign Up| Help| Contact|

Patent Searching and Data


Title:
CURRENT MEASUREMENT DEVICE, POWER STORAGE DEVICE, AND CURRENT MEASUREMENT METHOD
Document Type and Number:
WIPO Patent Application WO/2019/172371
Kind Code:
A1
Abstract:
A current measurement device for a power storage element 41, said device comprising: a current interruption device 45 provided on the current path of the power storage element 41; a first current sensor 47 that measures the current of the power storage element 41, said sensor provided on said current path; a second current sensor 48 that is connected in parallel to the current interruption device 45; and a processing unit 51. The second current sensor 48 has a lower resolution than the first current sensor 47. The processing unit 51 executes: measurement processing in which, in response to prescribed selection conditions, the first current sensor 47 and the second current sensor 48 are selectively used to measure the current of the power storage element 41; and failure detection processing in which a failure of the current interruption device 45 is detected on the basis of the measurement value of the second current sensor 48 when the current interruption device 45 is switched to open or closed.

Inventors:
IMANAKA, Yuki (1 Inobaba-cho, Nishinosho, Kisshoin, Minami-ku, Kyoto-sh, Kyoto 20, 〒6018520, JP)
Application Number:
JP2019/009075
Publication Date:
September 12, 2019
Filing Date:
March 07, 2019
Export Citation:
Click for automatic bibliography generation   Help
Assignee:
GS YUASA INTERNATIONAL LTD. (1 Inobaba-cho, Nishinosho Kisshoin, Minami-ku, Kyoto-sh, Kyoto 20, 〒6018520, JP)
International Classes:
G01R31/327; G01R19/00; G01R31/02; H02J7/00
Foreign References:
JP2013009552A2013-01-10
JP2017135834A2017-08-03
US20140055903A12014-02-27
KR20180067102A2018-06-20
JP2019059268A2019-04-18
Download PDF:



 
Previous Patent: RADIAL FOIL BEARING

Next Patent: FUEL SUPPLY CONTROL DEVICE