Title:
VEHICLE POWER SUPPLY DEVICE
Document Type and Number:
WIPO Patent Application WO/2022/118787
Kind Code:
A1
Abstract:
A vehicle power supply system (3) has a plurality of batteries (82A, 82B), power lines (94A, 94B), a switching unit (84), and relay units (91, 92). The switching unit (84) switches the plurality of batteries (82A, 82B) between series connection and parallel connection. The relay units (91, 92) switch between an ON state in which power supply from the plurality of batteries (82A, 82B) to the power lines (94A, 94B) is permitted and an OFF state in which the power supply is not permitted. This vehicle power supply device (10) is used in the vehicle power supply system (3). The vehicle power supply device (10) has a convertor (40) and a control unit (18). When the relay units (91, 92) are in the OFF state, if a predetermined condition is satisfied, the control unit (18) performs an operation of supplying power to the power lines (94A, 94B) with respect to the convertor (40).
Inventors:
HIROTA MASAYOSHI (JP)
Application Number:
PCT/JP2021/043604
Publication Date:
June 09, 2022
Filing Date:
November 29, 2021
Export Citation:
Assignee:
AUTONETWORKS TECHNOLOGIES LTD (JP)
SUMITOMO WIRING SYSTEMS (JP)
SUMITOMO ELECTRIC INDUSTRIES (JP)
SUMITOMO WIRING SYSTEMS (JP)
SUMITOMO ELECTRIC INDUSTRIES (JP)
International Classes:
H02J7/00; B60L3/00; B60L9/18; B60L58/19; H02H7/00; H02M3/18; H02M3/28
Domestic Patent References:
| WO2020230202A1 | 2020-11-19 | |||
| WO2020184630A1 | 2020-09-17 |
Foreign References:
| JP2013192278A | 2013-09-26 |
Attorney, Agent or Firm:
GRANDOM PATENT LAW FIRM (JP)
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