US 12,255,479 B2
Power supply device and vehicle
Ryosuke Takahashi, Nagakute (JP); and Yuki Sano, Toyota (JP)
Assigned to TOYOTA JIDOSHA KABUSHIKI KAISHA, Toyota (JP)
Filed by TOYOTA JIDOSHA KABUSHIKI KAISHA, Toyota (JP)
Filed on Mar. 29, 2023, as Appl. No. 18/191,995.
Claims priority of application No. 2022-097265 (JP), filed on Jun. 16, 2022.
Prior Publication US 2023/0411981 A1, Dec. 21, 2023
Int. Cl. H02J 7/00 (2006.01); B60R 16/033 (2006.01); H01M 10/46 (2006.01)
CPC H02J 7/007 (2013.01) [B60R 16/033 (2013.01); H01M 10/46 (2013.01)] 7 Claims
OG exemplary drawing
 
1. A power supply device for controlling power supply from a power supply source to loads, the power supply device comprising:
a power storage element;
a first circuit for connecting the power supply source and the power storage element so as to be chargeable;
a second circuit for connecting the power storage element and the loads so as to be dischargeable;
a third circuit for connecting the power supply source and the loads so as to be able to supply power;
a control unit for controlling the first circuit such that the power storage element is charged with power of the power supply source and for controlling the third circuit such that the power of the power supply source is supplied to the loads, when a predetermined signal is detected;
a determination unit for determining whether each of the loads is in a predetermined state; and
a diagnosis unit for performing failure diagnosis of a load determined to be in the predetermined state in the determination unit,
wherein when the predetermined signal is detected, the control unit controls the second circuit such that power of the power storage element is not discharged to the loads.