Patent ID: 7725248

Claim:
A procedure for operating an internal combustion engine ( 1 ) with several cylinders ( 2 , 3 , 4 , 5 ) into which fuel is injected, in which a) for a current operating point ( 15 ) which is preferably defined by two condition values (x M , y M ) of the internal combustion engine ( 1 ), in particular using a measured rotational speed signal from a shaft ( 6 ) of the internal combustion engine ( 1 ), a current correction factor (K M ) for the injection into one of the cylinders ( 2 , 3 , 4 , 5 ) is determined, characterized in that b) using the current correction factor (K M ), at least some of the grid correction factors (K GA ) which are stored in a correction factor characteristic map ( 13 ) for discrete operating points ( 16 ) of the internal combustion engine ( 1 ) are adapted, whereby c) a distance (d GM ) between the current operating point ( 15 ) and the discrete operating point ( 16 ) of the current grid correction factor (K GA ) to be adapted is taken into account when the grid correction factors (K GA ) are adapted d) using updated grid correction factors (K GN ) which are stored following adaptation in the correction factor characteristic map ( 13 ), an updated correction factor (K MN ) for the current operating point ( 15 ) is determined, and the updated correction factor (K MN ) is used for the injection, and e) during the adaptation of the grid correction factors (K GA ), a frequency (H MA ) of the current operating point ( 15 ) and a grid frequency (H GA ), which is stored in a discrete frequency characteristic map ( 14 ), of the discrete operating point ( 16 ) of the respective grid correction factor (K GA ) which is currently to be adapted, are taken into account.