Title:
POWER SUPPLY CONTROL DEVICE
Document Type and Number:
WIPO Patent Application WO/2023/204217
Kind Code:
A1
Abstract:
This power supply control device is to be applied to a vehicle provided with an electrical device, a relay connected to the electrical device, a first power source that enables operation of the relay, and a second power source that discharges electricity to the electrical device through the relay. The power supply control device comprises: a DCDC converter that supplies power from the second power source to the relay and that serves as a backup for the first power source; a third power source that is charged by the first power source and that outputs the charged power to the relay; and a control unit that controls operations of the DCDC converter and the second power source. The control unit turns the DCDC converter off when the voltage of the third power source is equal to or higher than a first threshold value, and turns the DCDC converter on when the voltage of the third power source is equal to or lower than a second threshold value that is lower than the first threshold value.
Inventors:
NISHIWAKI KAZUTAKA (JP)
Application Number:
PCT/JP2023/015516
Publication Date:
October 26, 2023
Filing Date:
April 18, 2023
Export Citation:
Assignee:
VEHICLE ENERGY JAPAN INC (JP)
International Classes:
H02J7/34; B60L1/00; B60L3/00; H02J7/00; H02J9/06
Foreign References:
| JPH0946921A | 1997-02-14 | |||
| JP2007089350A | 2007-04-05 |
Attorney, Agent or Firm:
SUNNEXT INTERNATIONAL PATENT OFFICE (JP)
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