A method for adaptation of the operating characteristic variables of an internal combustion engine

摘要

The present invention relates to a method for adapting the operating characteristic variables of an internal combustion engine with at least two cylinders, wherein the fuel - air - ratio of a in the cylinders of the internal combustion engine fuel - air - mixture is converted by means of a lambda probe is recorded as a function of time and as a time-dependent lambda signal is provided and wherein a cylinder-individual influencing of the operating characteristic variables of the internal combustion engine is provided.From the temporal variation of the actual value for it is measured phases independently to the cycle of the internal combustion engine is a measure for the cylinder-individual differences in the fuel - air - ratio is determined, it is possible, a measure for an equalization of the cylinder without a rake complex modeling of the travel time differences of the exhaust gas packets must take place from the individual cylinders. Furthermore, it is also possible for the modeling of the mixing of the exhaust gas packets can be dispensed with. This saves computing time and storage space in the motor control of the internal combustion engine.