US 12,407,162 B2
Power supply control system and processing method
Koki Sakakibara, Yokkaichi (JP); and Kota Oda, Yokkaich (JP)
Assigned to AutoNetworks Technologies, Ltd., Yokkaichi (JP); Sumitomo Wiring Systems, Ltd., Yokkaichi (JP); and Sumitomo Electric Industries, Ltd., Osaka (JP)
Appl. No. 18/555,447
Filed by AutoNetworks Technologies, Ltd., Yokkaichi (JP); Sumitomo Electric Industries, Ltd., Yokkaichi (JP); and Sumitomo Wiring Systems, Ltd., Osaka (JP)
PCT Filed Mar. 25, 2022, PCT No. PCT/JP2022/014244
§ 371(c)(1), (2) Date Oct. 13, 2023,
PCT Pub. No. WO2022/220055, PCT Pub. Date Oct. 20, 2022.
Claims priority of application No. 2021-069075 (JP), filed on Apr. 15, 2021.
Prior Publication US 2024/0204507 A1, Jun. 20, 2024
Int. Cl. H02H 7/12 (2006.01); H02H 1/00 (2006.01)
CPC H02H 7/1213 (2013.01) [H02H 1/0007 (2013.01)] 7 Claims
OG exemplary drawing
 
1. A power supply control system comprising:
a control device configured to control power supplied through a first switch, by turning the first switch on or off; and
a switching device configured to turn on or off a second switch disposed upstream of the first switch on a current path of a current flowing through the first switch,
wherein the control device includes a processing unit configured to receive power supply from a connection node between the first switch and the second switch and execute processing,
the processing unit
instructs to turn the first switch on or off while the second switch is on,
executes non-power supply control processing different from processing relating to control of power supplied through the first switch, and
determines whether a current conduction fault in which a current flows through the first switch despite an instruction being given to turn off the first switch has occurred, and
the switching device alternately turns the second switch on and off repeatedly, after the processing unit determines that the current conduction fault has occurred.