Title:
POWER SOURCE SWITCHING CONTROL SYSTEM
Document Type and Number:
Japanese Patent JP2023042332
Kind Code:
A
Abstract:
To make it possible to maintain power supply to a load with a high operation priority for required time even when remaining capacity of a power source in a state capable of supplying power is insufficient when power source failure occurs due to abnormality at a power source side or a load side in a redundant power source system in which a plurality of loads are connected in parallel.SOLUTION: A power source switching control system 10 includes: a first to a fifth switches 11 to 15; a first and a second power source failure determination units 31, 32 for determining power source failure; and a switch control unit 30 for controlling the first to fifth switches 11 to 15. When power source failure is determined by the first and second power source failure determination units 31, 32 and remaining capacity of a main battery 2 and a sub battery 3 is less than a predetermined threshold value, the switch control unit 30 shuts off a plurality of important loads IL1 to IL3 from a power supply line 8G with a third to a fifth switches 13 to 15 in an ascending order of operation priority to reduce a supply current from the main battery 2 and the sub-battery 3 to the important loads IL1 to IL3.SELECTED DRAWING: Figure 1
Inventors:
TAKAHASHI ATSUSHI
Application Number:
JP2021149578A
Publication Date:
March 27, 2023
Filing Date:
September 14, 2021
Export Citation:
Assignee:
YAZAKI CORP
International Classes:
H02J9/00; H02J1/00; H02J7/00; H02J7/34
Domestic Patent References:
| JP2021083214A | 2021-05-27 | |||
| JP2012200100A | 2012-10-18 |
Foreign References:
| US20080053716A1 | 2008-03-06 |
Attorney, Agent or Firm:
Nobuo Nakamura
Shoichi Masuto
Shoichi Masuto
Previous Patent: JPWO2023042331
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