Ina Grisstede

The Diesel in the focus of urban air quality – Exhaust concepts to fulfill RDE

Despite stricter legislative emission targets, the provisions on nitrous oxides and fine particles are partially violated severely in European cities. Thus, comprehensive regulations are being prepared including the validation of vehicle emissions in real driving conditions by means of portable measurement systems. In contrast to an NEDC based procedure, the extended utilization of the engine operation map as well as the higher dynamics in real driving is leading to inherently higher engine-out emissions which need to be reduced by highly efficient aftertreatment systems.