Title:
POWER SUPPLY SYSTEM
Document Type and Number:
WIPO Patent Application WO/2023/042662
Kind Code:
A1
Abstract:
This power supply system (10) is provided with: a main relay (14) which is provided on a high-voltage path (12) between a high-voltage battery (11) and an electronic device (13); a recharging relay (16) which is provided in a recharging path (15) connected between the main relay and the electronic device; and a controller (24) which controls opening and closing of the main relay and the recharging relay. The controller, the main relay and the recharging relay each operates with power supply from a low-voltage battery and, in a state in which the main relay and the recharging relay are closed, the high-voltage battery is recharged with recharging power from the charging device (100). Further, the power supply system is provided with a relay cutoff unit which, in the case in which a voltage drop error in the low-voltage battery has occurred in a state in which the main relay and the recharging relay are both closed, cuts off the recharging relay before cutoff of the main relay.
Inventors:
TANABE YASUHITO (JP)
WANG DACHAO (JP)
WANG DACHAO (JP)
Application Number:
PCT/JP2022/032787
Publication Date:
March 23, 2023
Filing Date:
August 31, 2022
Export Citation:
Assignee:
DENSO CORP (JP)
International Classes:
H02H7/20; H02J7/00
Foreign References:
| JP2011111032A | 2011-06-09 | |||
| JP2020078187A | 2020-05-21 | |||
| JP2018107938A | 2018-07-05 | |||
| JP2013198292A | 2013-09-30 | |||
| JP2020137247A | 2020-08-31 |
Attorney, Agent or Firm:
YAMADA, Tsuyoshi (JP)
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