US 12,330,620 B2
Power supply control device, control method, and storage medium
Akihiro Ozeki, Chiryu (JP); Kohei Nishi, Kariya (JP); Masayuki Suzuki, Toyota (JP); and Hatsuki Suganuma, Nisshin (JP)
Assigned to TOYOTA JIDOSHA KABUSHIKI KAISHA, Toyota (JP)
Filed by TOYOTA JIDOSHA KABUSHIKI KAISHA, Toyota (JP)
Filed on Feb. 14, 2023, as Appl. No. 18/168,670.
Claims priority of application No. 2022-070712 (JP), filed on Apr. 22, 2022.
Prior Publication US 2023/0339449 A1, Oct. 26, 2023
Int. Cl. B60W 30/18 (2012.01); B60R 16/023 (2006.01); B60R 16/04 (2006.01); B60W 10/26 (2006.01); H02J 1/10 (2006.01); B60W 60/00 (2020.01)
CPC B60W 10/26 (2013.01) [B60R 16/0231 (2013.01); B60R 16/04 (2013.01); H02J 1/106 (2020.01); B60W 2720/10 (2013.01)] 7 Claims
OG exemplary drawing
 
1. A power supply control device that controls power supply to a load of a vehicle that uses a first battery and a second battery, the power supply control device comprising:
an acquisition unit that acquires a power supply state of the vehicle;
a diagnostic unit that performs diagnostics of the second battery when the power supply state of the vehicle is switched from off to on;
a control unit that controls an electrical connection state between the load and the second battery, and
a detection unit that detects a speed of the vehicle,
wherein the control unit executes control to establish a first state in which power is able to be supplied from the second battery to the load when the diagnostic unit diagnoses that the second battery is normal; and
the control unit executes control to establish a second state in which the second battery is electrically disconnected from the load when the speed of the vehicle continues to be equal to or less than a predetermined speed for a second time after the power supply state of the vehicle is switched from on to off.