METHOD TO CONTROL IN ANY POSSIBLE OPERATING POINT THE COMBUSTION OF A COMPRESSION IGNITION INTERNAL COMBUSTION ENGINE WITH REACTIVITY CONTROL THROUGH THE FUEL INJECTION TEMPERATURE

摘要

A method to control the combustion of a compression ignition engine (1) having the steps of: establishing, for each combustion cycle, a fuel quantity (Q) to be injected into the cylinder (2); injecting a first fraction (Fl) of the fuel quantity (Q); heating a second fraction (F2) of the fuel quantity (Q), which is equal to the remaining fraction of the fuel quantity (Q), to an injection temperature (T) higher than 100°C; injecting the second fraction (F2) of the fuel quantity (Q) heated to the injection temperature (T) into the cylinder (2) at the end of the compression stroke and at no more than 60° from the top dead centre (PMS); and decreasing the injection temperature (T) and the ratio between the second fraction (F2) and the first fraction (Fl) as the internal combustion engine (1) increases and as the rotation speed of the internal combustion engine (1) increases.