Patent ID: 6536411
Filing Date: 2003-03-25
Classification: F01L,F02D,Y02T

Abstract:
A method for operating a fuel injected internal combustion engine including a number of cylinders, an air intake leading to said cylinders and an air supply control device disposed in said air intake for supplying combustion air to said cylinders, and actuating elements for adjusting ignition timing, fuel injection timing and fuel injection duration, said method comprising the steps of determining, as a function of a desired load (t1,desired), a desired pressure (ps,desired) in said air intake of said internal combustion engine, controlling said air supply control device so as to provide said desired pressure for the combustion air supplied to the cylinders of said internal combustion engine, determining an average injection duration (ti,mw), forming therefrom an average load value (t1,average), comparing said average load value (ti,average) with the desired load (t1,desired), forming the difference between said desired load t1,desired) and the average load value (t1,average) and determining therefrom the ignition timing, the beginning of fuel injection and the duration of fuel injection in accordance with a predetermined relationship and supplying said values as actuating signals to said actuating elements.