US 12,257,924 B2
In-vehicle system, method, and non-transitory storage medium
Yukiyoshi Ueno, Toyota (JP)
Assigned to TOYOTA JIDOSHA KABUSHIKI KAISHA, Toyota (JP)
Filed by TOYOTA JIDOSHA KABUSHIKI KAISHA, Toyota (JP)
Filed on Dec. 21, 2022, as Appl. No. 18/069,303.
Claims priority of application No. 2022-024663 (JP), filed on Feb. 21, 2022.
Prior Publication US 2023/0264597 A1, Aug. 24, 2023
Int. Cl. B60L 58/18 (2019.01); B60L 58/12 (2019.01); H02J 7/00 (2006.01); B60R 16/03 (2006.01); H02J 7/34 (2006.01)
CPC B60L 58/18 (2019.02) [B60L 58/12 (2019.02); H02J 7/0013 (2013.01); H02J 7/0063 (2013.01); B60R 16/03 (2013.01); H02J 7/00 (2013.01); H02J 7/34 (2013.01)] 9 Claims
OG exemplary drawing
 
1. An in-vehicle system comprising:
a first battery connected to a first load and configured to supply electric power to the first load;
a second battery connected to a second load and configured to supply the electric power to the second load;
a first relay configured to connect or disconnect a connection path between the first battery and the first load to a connection path between the second battery and the second load; and
a processor configured to
control turn-on and turn-off of the first relay to control a state of electric power supply from the first battery and the second battery to the first load and the second load,
detect an abnormality in the first battery and the second battery, and
determine a difference between a physical quantity indicating a state of the first battery and a physical quantity indicating a state of the second battery,
the processor being further configured to
when the processor detects the abnormality in the first battery or the second battery, turn off the first relay,
when the processor no longer detects the abnormality in the first battery and the second battery after the first relay is turned off, execute a discharging process for the first battery or the second battery until the processor determines that the difference between the physical quantities of the first battery and the second battery satisfies a predetermined condition,
when the processor determines that the difference between the physical quantities of the first battery and the second battery satisfies a predetermined condition, turn on the first relay,
on a condition that the abnormality in the first battery has been detected, the discharging process includes causing the first load consume the electric power of the first battery and stopping the operation of the second load in a state in which the first relay is turned off, and
on a condition that the abnormality in the second battery has been detected, the discharging process includes causing the second load consume the electric power of the second battery and stopping the operation of the first load in a state in which the first relay is turned off.