Method and measuring arrangement for the determination of specific and / or absolute nox emissions and / or co2 in an internal combustion engine

摘要

In the case of a measuring arrangement for the determination of specific and / or absolute emission values for no_x and / or co₂ (19) in an internal combustion engine (3), it is proposed that the time curve (5) of the cylinder pressure (1) at at least one cylinder (2) and to determine from it a cylinder pressure curve (10), which the connection of the cylinder pressure (1) at an angle of rotation of a motor shaft (7) of the internal combustion engine (3) are mapped. It is proposed further from this cylinder pressure curve (10) in combination with a co₂- and / or o₂-Concentration measurement a power output (11) and a mass flow of exhaust gas (12) to determine which with a measured no_x-Concentration (17) in the exhaust gas (15) of the internal combustion engine (3) to the specific and / or absolute emission values for no_x and / or co₂ the internal combustion engine (3) are combined (cf. 1).