Emission Standard Euro 6d for Diesel Engines

By Eberhard Schutting - New types of vehicles have to prove their conformity to emission standards in thetype approval test. Previous procedures were criticized for insufficiently reflecting the real driving pattern. Thus, end of 2017, the regulatory authorities (the EC) introduced a new test procedure that includes the measurement of emissions during real¬world driving, commonly known as RDE legislation (Real Driving Emissions). Continued tightening of emission limits will keep this legislation a major research target (Euro 6d comes into force in January 2020). At the Institute of Internal Combustion Engines and Thermodynamics, researchers are investigating strategies to fulfill the RDE legislation with passenger car diesel engines. The extensive experiments and simulations are covered by the international research project "ECO Powerdrive 2". The RDE legislation demands the compliance with emission limits under widely varying conditions: urban and highway driving, summer and winter, aggressive and defensive driving.