Realization of Gasoline and Diesel Top Performance Engines

Authors

Dr. W. Schöffmann, Dr. H. Sorger,
Dipl.-Ing. F. Zieher, Dr. P. Kapus,
Dipl.-Ing. M. Weissbäck, AVL List GmbH, Graz

Year

2015

Print Info

Fortschritt-Berichte VDI, Reihe 12, Nr. 783

Summary

Common turbocharged engine family architectures with shared parts and processing concepts have become the basic requirements for future Gasoline and Diesel engines. Lightweight construction, optimisation of mechanical efficiency via friction reduction, on-demand auxiliary control and a high degree of functional integration and modularisation represent the key criteria for an increase in efficiency, reduction of powertrain aggregate complexity and minimisation of package dimensions. The power range of Gasoline and Diesel variants is considerably influenced by the complexity of the boost systems. High performance engines will continue to be a major factor in the positioning of model ranges alongside fuel consumption concepts and efficiency variants of medium performance engines that dominate production volume. Previous model range changes have seen a transition from naturally aspirated engines towards turbocharged variants and currently there is a developing trend towards a lower number of cylinders and lower capacities with significantly increased specific power.