Herbert Schumacher

Measures to fulfill

The first stage of the regulations on real-driving emissions (RDE) has become effective in Europe in September 2017. Now compliance with the EU6d_temp stage is required in order obtain a type approval. This regulation aims to limit the nitrogen-oxide and particulate emissions. With residual emissions from diesel cars having only very small contribution to finedust in cities due to the broad-based use of particulate filters, further development activities are now geared towards effectively limiting nitrogen-oxide emissions.

Measures to fulfill “real driving emission (RDE)” with Diesel passenger cars

Passenger car manufacturers are currently facing the task of controlling the real-driving emissions of cars on public roads in spite of highly varying driving conditions to such an extent that these emissions deviate only little or not at all from the emissions established during standardized type approval testing. The legislation on real-driving emissions (RDE) primarily aims at the particle count and nitrogen emissions. The widespread use of particle filters in modern diesel cars has already brought particle emissions produced during combustion down to an extremely low level; however, effectively limiting nitrogen emissions is in focus.

Areas of use for diesel engines

No other internal-combustion engine is as widely used as the diesel engine 1). This is due primarily to its high degree of efficiency and the resulting fuel economy.