Title:
POWER SOURCE DEVICE FOR VEHICLES
Document Type and Number:
WIPO Patent Application WO/2021/124952
Kind Code:
A1
Abstract:
[Problem] To prevent electric shock to a human body without using an insulating means such as a transformer in a power source device for vehicles that is mounted in a vehicle and achieves a low voltage power source from a high-voltage power source via a step-down means. [Solution] In a configuration for performing power conversion from a high voltage to a lower voltage by selectively connecting a predetermined power storage element group from a high voltage power source formed by connecting power storage elements in series to a low voltage electrical load, a leakage current from the high voltage power source is measured during a dead-time period in which the power storage element group is not connected to the low voltage electrical load, and electric shock is prevented by cutting off the connection between the power storage element group and the low voltage electrical load when the leakage current is a predetermined value or higher.
Inventors:
MAKIO DAISUKE (JP)
YAMANOUE KOICHI (JP)
YAMANOUE KOICHI (JP)
Application Number:
PCT/JP2020/045458
Publication Date:
June 24, 2021
Filing Date:
December 07, 2020
Export Citation:
Assignee:
IMASEN ELECTRIC IND (JP)
International Classes:
H02H3/16; B60L50/60; H02H7/18; H02J7/00; H02J7/02
Foreign References:
| JP2018026973A | 2018-02-15 | |||
| JP2013079003A | 2013-05-02 | |||
| JPH08320352A | 1996-12-03 | |||
| JP2004248403A | 2004-09-02 | |||
| JP2013257211A | 2013-12-26 | |||
| JP2013090525A | 2013-05-13 | |||
| JP2018026973A | 2018-02-15 |
Other References:
See also references of EP 4080704A4
Attorney, Agent or Firm:
TASHITA Akihito (JP)
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