Method and device for regulating the exhaust gas recirculation rate for lean burn internal combustion engines

摘要

The invention relates to a method for setting an exhaust gas recirculation rate in an engine system (1) with an internal combustion engine (2), the exhaust gas recirculation rate being the proportion of exhaust gas recirculated into a cylinder (3) of the internal combustion engine (2) with respect to the total in the cylinder (3 ) indicates the amount of gas present, with the following steps: - operating the internal combustion engine (2) in accordance with a specification for the exhaust gas recirculation rate, an ignition of an air / fuel mixture in the cylinder being carried out at a specific ignition timing; - Adjusting the ignition point in the cylinder (3) of the internal combustion engine (2); - Correcting the specification for the exhaust gas recirculation rate as a function of a change in the operating behavior of the internal combustion engine (2) due to the adjustment of the ignition timing.