Methods for the Development of a RDE-Capable Powertrain

Authors

Prof. Dr.-Ing. J. Hadler,
Dipl.-Ing. C. Lensch-Franzen, Dr.-Ing. M. Gohl, Prof. Dr.-Ing. K. Kirsten, Dr.-Ing. C. Guhr,
APL Automobil-Prüftechnik Landau GmbH, Landau; Dr.-Ing. B. Kehrwald, IAVF GmbH, Karlsruhe;
Prof. Dr.-Ing. U. Spicher, MOT GmbH, Karlsruhe

Year

2015

Print Info

Fortschritt-Berichte VDI, Reihe 12, Nr. 783

Summary

On the background of the continuously changing statutory regulations, increasing customer requirements for efficiency and dynamic, as well as competition for market shares, the complexity in automotive engineering, with at the same time shorter development cycles, has dramatically increased. Near future emission regulations like the limitation of particle number for (direct injection) petrol engines or the RDE (Real Driving Emissions) legislation are going to increase the necessary effort for development, validation and compliance considerably over the current level. The stability of the combustion process is dependent on the accuracy of control and supply from the control devices such as injection, ignition system, etc. Not less relevant are inter-ference factors like oil entering the combustion chamber, the tendency to preignition or engine knock. Compared to the NEDC the phenomena described particularly come to the fore by RDE emissions robustness due to the higher load and dynamic requirements and, besides carrying higher risk, they influence the emission characteristic negatively. To this comes a normally over time deteriorating effect through wear, deposits, impairment of af-tertreatment, etc.