Patent ID: 6098606
Filing Date: 2000-08-08
Classification: F02B,F02D,F02M,Y02T

Abstract:
A method for operating an internal combustion engine such as for a motor vehicle, the engine having a combustion chamber and the method comprising the steps of:adding regeneration gas for only a short time duration (T) to air inducted into said combustion chamber;injecting fuel directly into said combustion chamber;combusting said fuel and said regeneration gas in said combustion chamber and assuming a specific behavior of the combustion of said fuel and said regeneration gas;detecting the actual combustion behavior of said fuel and said regeneration gas;determining the hydrocarbon concentration of said regeneration gas from the assumed specific behavior and the detected behavior;injecting fuel into said combustion chamber during the next time duration (T) for an injection time (TI) dependent upon said hydrocarbon concentration;generating an actual value in dependence upon the detected behavior of the combustion of said fuel and said regeneration gas;determining an expectation value in dependence upon the assumed behavior of said combustion;comparing the actual value to the expectation value; and,determining the injection time (TI) in dependence upon the comparison.