US 12,140,103 B1
Injection controller and injection control method
Tomohiro Miyauchi, Wako (JP); and Kenichiro Asai, Wako (JP)
Assigned to HONDA MOTOR CO., LTD., Tokyo (JP)
Filed by HONDA MOTOR CO., LTD., Tokyo (JP)
Filed on Sep. 27, 2023, as Appl. No. 18/475,426.
Int. Cl. F02D 41/30 (2006.01); F02B 61/04 (2006.01); F02D 41/00 (2006.01); F02D 41/10 (2006.01); F02D 41/12 (2006.01)
CPC F02D 41/3064 (2013.01) [F02B 61/045 (2013.01); F02D 41/008 (2013.01); F02D 41/009 (2013.01); F02D 41/10 (2013.01); F02D 41/12 (2013.01); F02D 2200/0406 (2013.01); F02D 2200/101 (2013.01)] 9 Claims
OG exemplary drawing
 
1. An injection controller that controls fuel injection in each cylinder of an engine including a plurality of cylinders, the injection controller comprising:
a processor that determines a fuel injection quantity in each of the cylinders; and
a memory, wherein
the processor
acquires an intake air pressure of each of the cylinders from an intake air pressure sensor provided in an intake path,
determines, for each of the cylinders, on the basis of the intake air pressure in one intake stroke, a fuel injection quantity for a next intake stroke in the cylinder,
determines whether an instruction operation for making an instruction to increase or reduce a rotation speed of the engine has been performed on the basis of the intake air pressure in one of the cylinders, and
performs transient response control to apply the fuel injection quantity for the next intake stroke in the one cylinder also to the fuel injection quantity in the next intake stroke in the cylinders other than the one cylinder when it is determined that the instruction operation has been performed.