ICE CONTROL DEVICE AND CONTROL METHOD Russian patent published in 2017 - IPC F02D41/34 F02B23/10 

FIELD: engines and pumps.

SUBSTANCE: maximum injection volume from the fuel injection valve (8) for injection into the cylinder can cover the area up to line L2 with respect to the boundary between the area A1 of stoichiometric air-fuel ratio and the area A2 of outlet stoichiometric air-fuel ratio. The engine is driven by injection into the cylinder in the area A1 of the stoichiometric air-fuel ratio. The switching line L3 for switching the injection and stopping the fuel injection valve (41) for injection into the channel is set between the two boundary lines L1 and L2. On the high speed and the high load from the switching line L3, the fuel injection valve for injection into the channel performs additional fuel injection. Switching the injection and stopping the injection into the intake channel is performed in a state when the air-fuel ratio becomes the outlet air-fuel ratio only due to injection into the cylinder.

EFFECT: increasing and decreasing the total fuel volume will not affect the torque, and the torque step is small.

5 cl, 4 dwg