Method for regulating or controlling exhaust gas recirculation of cylinder and intake manifold, involves regulating or controlling residual gas mass portion in intake manifold

摘要

The method involves regulating or controlling (S9) residual gas mass portion in intake manifold in such manner that desired predetermined or predeterminable residual gas mass rate is reached at end of a combustion process in cylinder. The regulation or control considers a pre-defined or ascertained injected fuel mass for a preceding combustion process of a cylinder. An independent claim is included for a Control unit for regulating or controlling exhaust gas recirculation by adjusting proportion of residual gas in an internal combustion engine.