EMISSION CONTROL MANAGEMENT OF VOLKSWAGEN FSI FUEL STRATIFIED INJECTION ENGINES

摘要

Due to high lean NOx emissions of direct injection gasoline engines, NOx storage reduction catalysts are being implemented to meet european step 4 emission standards. In contrast to Japanese applications, high sulphur concentrations in european fuel make means for active desulphation inevitable. Volkswagen has developed a new emission control management system which uses for the first time NOx-sensor signals. The presentation gives a general overview of the Volkswagen emission control strategy of fuel stratified injection engines.