US 12,276,245 B2
Control device and control method for power unit
Takeshi Matsumoto, Wako (JP)
Assigned to HONDA MOTOR CO., LTD., Tokyo (JP)
Filed by HONDA MOTOR CO., LTD., Tokyo (JP)
Filed on Mar. 7, 2024, as Appl. No. 18/598,708.
Claims priority of application No. 2023-040730 (JP), filed on Mar. 15, 2023.
Prior Publication US 2024/0309836 A1, Sep. 19, 2024
Int. Cl. F02N 11/08 (2006.01); H02J 7/00 (2006.01); H02J 7/14 (2006.01); B64D 33/00 (2006.01)
CPC F02N 11/0862 (2013.01) [F02N 11/087 (2013.01); H02J 7/0013 (2013.01); H02J 7/0048 (2020.01); H02J 7/0063 (2013.01); H02J 7/1423 (2013.01); B64D 33/00 (2013.01); F02N 2200/061 (2013.01)] 6 Claims
OG exemplary drawing
 
1. A control device for a power unit connected to a motor configured to start an internal combustion engine, the power unit having a plurality of batteries connected in parallel with each other and which are configured to supply electrical power from the plurality of batteries to an electrical load other than the motor,
the control device comprising one or more processors configured to execute computer executable instructions stored in a memory,
wherein the one or more processors execute the computer executable instructions to cause the control device to:
detect a residual amount of electrical power of each of the plurality of batteries;
compare the residual amount of electrical power of the plurality of batteries; and
at a time when the internal combustion engine is started, control the power unit and start supplying the electrical power from the plurality of batteries to the motor in a descending order of the residual amount of electrical power of the batteries,
wherein:
the plurality of batteries include a first battery, and a second battery having a next highest residual amount of electrical power after the first battery; and
the one or more processors causes the control device to start supplying the electrical power from the second battery to the motor in a case that a difference between the residual amount of electrical power of the first battery and the residual amount of electrical power of the second battery becomes less than or equal to a first predetermined amount after the one or more processors cause the control device to start supplying the electrical power to the motor from the first battery.