Efficient and clean: exhaust aftertreatment for gasoline and diesel engines
The required levels illustrated by the example of nitrogen oxide emissions for diesel engines show how much stricter emissions legislation has become. While the Euro 3 limit from 2000 onwards was still set at 500 mg/km, only 80 mg/km have been permissible for new type approvals according to Euro 6d since 2020. On January 1, 2020, the Euro 6d standard superseded the previously valid Euro 6d TEMP limits for newly homologated models. Starting on January 1, 2021, all new vehicles seeking first-time approvals will have to comply with the new standards, including the strict requirements of the RDE (Real Driving Emissions) test method that targets emissions in real-world day-to-day driving. The proportion of nitrogen oxide is particularly high with diesel engines because these units are designed to operate with a surplus of air.
Nov 18, 2020 at 16:12