| abstract |
AnInternal combustion engine has several cylinders (Z1-Z4), the cylinders (Z1-Z4)nassociated injectors (18) which meter fuel, and anExhaust gas probe (42, 43), which is arranged in an exhaust tract (4)nand whose measurement signal (MS) is characteristic of the air / fuel ratio innthe respective cylinder (Z1-Z4). At a given sampling crankshaft anglen(CRK_SAMP), based on a reference position of the piston of the respectivenCylinder (Z1-Z4), the measurement signal (MS) is detected and the respectivenCylinder (Z1-Z4) assigned. By means of a regulator isna controller value (RW [Z1-Z4]) for influencing the air / fuel rationin the respective cylinder (Z1-Z4) depending on the respective onenCylinder detected measurement signal (MS) determined. At a fulfillmentnpredetermined first conditions that a predetermined first temperature rangen(TB1) include a temperature that is representativenis forna temperature of the respective injection valve (18) becomes a first onenAdaptation value (AD [Z1-Z4]) depends onndetermined by the controller value (RW [Z1-Z4]). At a fulfillmentngiven second conditions, the second temperature rangenInclude (TB2) the temperature,nthe representativenis fornthe temperature of the respective injection valve (18), a secondnAdaptation value (AD2 [Z1-Z4])ndetermined by the controller value (RW [Z1-Z4]). The correction value (LAM_FAC_I [Z1-Z4])nfor influencing the air / fuel ratio in the ... |