US 12,377,802 B2
Power supply control device, power supply control method, and program
Shinnosuke Nakaguchi, Yokkaichi (JP); Masayuki Kato, 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. 18/570,364
Filed by AutoNetworks Technologies, Ltd., Yokkaichi (JP); Sumitomo Wiring Systems, Ltd., Yokkaichi (JP); and Sumitomo Electric Industries, Ltd., Osaka (JP)
PCT Filed Jun. 6, 2022, PCT No. PCT/JP2022/022707
§ 371(c)(1), (2) Date Dec. 14, 2023,
PCT Pub. No. WO2022/270279, PCT Pub. Date Dec. 29, 2022.
Claims priority of application No. 2021-105663 (JP), filed on Jun. 25, 2021.
Prior Publication US 2024/0278741 A1, Aug. 22, 2024
Int. Cl. B60R 16/023 (2006.01); B60R 16/033 (2006.01); H03K 3/017 (2006.01)
CPC B60R 16/0232 (2013.01) [B60R 16/033 (2013.01); H03K 3/017 (2013.01)] 9 Claims
OG exemplary drawing
 
1. A power supply control device to be installed in a vehicle, comprising:
a first switch that is provided between a first conductive path and a second conductive path, and is configured to be switched on in response to an ON signal and to be switched off in response to an OFF signal;
a second switch provided between the first conductive path and the second conductive path, in parallel to the first switch;
an abnormality detection unit configured to detect an abnormality in which the first switch remains in a conductive state while the OFF signal is given to the first switch; and
a control unit configured to control the first switch and the second switch,
wherein the first switch has an ON-resistance that is smaller than an ON-resistance of the second switch, and
the control unit performs a first control of turning the first switch on, and performs, if the abnormality is detected by the abnormality detection unit, on/off control of alternately turning the second switch on and off.