A method for improving the accuracy of a suction pipe model of an internal combustion engine

摘要

A method for operating an internal combustion engine, wherein by means of a suction pipe model of an intake pipe pressure p_S a predicted filling is calculated and a mixture control, is transferred to which a into a combustion chamber of the internal combustion engine fuel mass to be injected, and wherein a continuously by means of a lambda probe lambda - value of an exhaust gas is determined, characterized in that a deviation of the lambda - value of one for the injected fuel mass and the predicted filling expected lambda - value is determined that a difference between the predicted filling and a in order to achieve the expected lambda - value required filling is determined, and that parameters of the suction pipe model be modified in such a way that the suction pipe model for the input value of the suction pressure p_S, from the previously the predicted filling has been calculated, the previously determined outputs required filling.