METHOD AND DEVICE FOR FILLING LEVEL DETECTION IN A CYLINDER OF A COMBUSTION ENGINE

摘要

The invention relates to a method (10) for filling level detection in a cylinder of a combustion engine, said cylinder being connected to an intake runner via an inlet valve, and to an exhaust channel via an exhaust valve. The method (10) comprises the following steps: providing (102) a database having a data set relating to an amount of a filling component in accordance with an exhaust gas back pressure (pag) in the outlet channel, said step (102) of providing a database involving the provision (100) of measurement data (30) measured on a test bed, and the provision (101) of simulation data (31) calculated using a charge exchange calculation; determining (103) a basic function (20) that qualitatively describes the dependency of the filling component amount on the exhaust gas back pressure (pag); and adapting (104) the basic function (20) to at least the one data set of the database by appropriately selecting variable parameters of the basic function (20).