Reduction of particulate number emissions through calibration methods

The ever-stricter emission limits for passenger cars are continually posing new challenges for engine development. The European Union with the introduction of Euro 5 has for the first time a gasoline emission standard for particulate mass, with Euro 6 in addition to particulate mass there will be a limit for the particulate number. AVL has investigated the possibilities of reducing internal engine particulate emissions, developed concepts for future emissions and tested the potential for the reduction of particulates by calibration methods.