It is the objective of the German and the European Government to obtain a sustainable transportation policy. Mobility should be designed under consideration of environmental and climate protection, social responsibility and economic efficiency. Road traffic plays an important role within the transportation sector, with about ¾ of all conveyances fulfilled. For these reasons, it is important to reduce air pollution caused by vehicles.
Within the project, the objective was to analyse the emissions of different types of vehicles: Engines using petrol and diesel, that are labeled with Euro 4 or Euro 5 should be tested.
Within the officially relevant driving cycle NEFZ (new European Driving Cycle), only low engine loads and a low speed of 120 km/h is required. To achieve more in-depth information about emissions in everyday situations, the FTP 75 Driving Cycle and the Common Artemis Driving Cycle were carried out.
The tested vehicles achieved the required emission limits within the NEFZ Driving Cycle. The highest CO2 emission - and linked to that the highest fuel consumption – occur under urban driving conditions in combination with a cold start. Under these conditions, the tested emission value is much higher than the referring emission limit.
Findings of the study are published in detail by a final report (German only) which is available online via the Federal Ministry for the Environment, Nature Conservation, Building and Nuclear Safety: