METHOD FOR OPERATING AN INTERNAL COMBUSTION ENGINE

摘要

The invention relates to a method for operating an internal combustion engine (5), in which method a measured actual NOx value (30) is compared with a setpoint NOx value (16), and in which method an exhaust-gas recirculation means is regulated as a function of a deviation of the actual NOx value (30) from the setpoint NOx value (16), wherein, in order to regulate the exhaust-gas recirculation means, a proportion of internally retained exhaust gases (42) and a proportion of externally recirculated exhaust gases (40) are set in a total recirculated or retained exhaust gas. Furthermore, the invention relates to a device (8) for operating an internal combustion engine (5).