| 摘要 |
PROBLEM TO BE SOLVED: To improve a combustion state in an operation state for changing an engine load when a supercharger is employed to an internal combustion engine which performs diesel combustion by using fuel which is relatively high in a self-ignition temperature.SOLUTION: An internal combustion engine generates the self-ignition and the dispersion combustion of fuel by performing first injection during a compression stroke, generating spray-guide combustion, and starting the execution of second injection at timing before a compression stroke top dead point that is second injection timing at which the combustion of injection fuel is started with a flame generated by the spry-guide combustion as a starting point. Then, the internal combustion engine increases a ratio of a first injection fuel amount with respect to a total fuel injection amount during one combustion cycle higher than a ratio of the first injection fuel amount with respect to the total fuel injection amount during one combustion cycle when an engine load is the same with a target engine load, and actual supercharge pressure is the same with target supercharge pressure with respect to the target engine load in a response delay period of the supercharge pressure when the engine load of the internal combustion engine is changed to the target engine load.SELECTED DRAWING: Figure 9 |
