Method for operating air-compressing internal combustion engine, involves adjusting oxygen mass content in flue gas by actuation of low pressure-exhaust gas recirculation valve or air vane

摘要

The method involves adjusting an oxygen mass content (Y-O2) in the flue gas by actuation of a low pressure-exhaust gas recirculation valve or an air vane and a high pressure-exhaust gas recirculation valve approximately at a provided threshold value. The low pressure-exhaust gas recirculation valve is arranged in the low pressure path. The high pressure-exhaust gas recirculation valve is arranged in the high pressure path.