Method for determining gaseous mixture composition in exhaust gas passage of internal combustion engine i.e. Otto engine, involves correcting output signal of exhaust-gas sensor with quantity dependant on composition of gaseous mixture

摘要

The method involves determining gaseous mixture composition by an exhaust-gas sensor i.e. two-point lambda probe, and correcting an output signal of the exhaust-gas sensor with a quantity dependant on the composition of the gaseous mixture. A concentration or proportion of components of the gas mixture is determined based one data available in a controller of an internal combustion engine to determine the correction of measured values. A reference voltage lambda curve (12) and a voltage lambda curve (13) are applied on a probe tension axle (11) along a lambda axle (18). INDEPENDENT CLAIM is also included for a method for determining gaseous mixture composition in an exhaust gas passage of an internal combustion engine.