Title:
SWITCH UNIT AND BATTERY DEVICE
Document Type and Number:
WIPO Patent Application WO/2020/031779
Kind Code:
A1
Abstract:
A switch unit 10 has a first switch 19, a second switch 20, a voltage sensor 22, and a controller 23. The first switch 19 and the second switch 20 are in series with each other. The voltage sensor 22 detects the voltage between the first switch 19 and the second switch 20. The controller 23, upon acquiring a command for switching a first battery 18 from a cut-off state to an energized state, determines an OFF-failure of the second switch on the basis of the voltage detected by the voltage sensor 22 in a state in which the first switch 19 is turned off and the second switch 20 is turned on. The controller 23 determines an OFF-failure of the first switch 19 on the basis of the voltage detected by the voltage sensor 22 in a state in which the second switch 20 is turned off and the first switch 19 is turned on. The controller 23 switches the second switch 20 to ON while maintaining the ON-state of the first switch.
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Inventors:
SHIMAZAKI MASANAO (JP)
Application Number:
PCT/JP2019/029700
Publication Date:
February 13, 2020
Filing Date:
July 29, 2019
Export Citation:
Assignee:
CALSONIC KANSEI CORP (JP)
International Classes:
H02J7/00; H01M10/42; H02H7/00; H02H7/18; H02J1/00
Foreign References:
| JP2018093694A | 2018-06-14 | |||
| JP2015214264A | 2015-12-03 | |||
| JP2004266992A | 2004-09-24 | |||
| JP2015171305A | 2015-09-28 |
Attorney, Agent or Firm:
SUGIMURA Kenji (JP)
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