Monitoring exhaust gas feedback system involves comparing measured value with stored reference values to determine actual quantity of residual gas present in combustion chamber

摘要

The method involves detecting an ion current signal from an ion current probe in a combustion chamber with time resolution over a working cycle and deriving a residual gas sensitive measurement parameter and comparing this actual value with at least one of several stored reference values corresp. to different residual gas quantities to determine the actual quantity of residual gas present in the combustion chamber.