Apparatus and a method for controlling a diesel engine

摘要: In a diesel engine, heavy EGR lowers combustion temperature, which greatly prolongs an ignition delay period and all fuel is injected within the period, thereby performing low-temperature premixed combustion. A crank angle from injection completion to start made less than 15 degrees by advancing timing and/or prolonging period. As result, equivalent ratio distribution in chamber at controlled such that vicinity of cylinder center richer wall gradually changes wall.