Concepts for Future Power Train in Heavy Duty Applications – Potentials for CO₂-Reduction by Technical Solutions and Optimized Operations

Authors

Dr.-Ing. Harald Ludanek, Executive Vice President, Research and Development, J. Hofstedt, P. Lange, Dr.-Ing. M. MackAldener, Scania CV AB, Södertälje

Year

2014

Print Info

Fortschritt-Berichte VDI, Reihe 12, Nr. 777

Summary

Reducing fuel consumption and hence CO₂ emissions is always in focus in heavy truck and bus development. This development goal will also be pursued with top priority in future heavy vehicle powertrains since, on average, fuel consumption at present accounts for some 35% of the logistic costs in long-haulage. Transporters need to optimise operating costs and maintain competitiveness. Fuel consumption and reliability are therefore the principal purchasing criteria for the most typical transport applications. In recent years, engine technology has progressed considerably and this has raised thermal and mechanical efficiency. Internal combustion engines will remain the basis for the majority of heavy commercial vehicle powertrains in the future. Further optimising measures, including better use of the exhaust heat, can be expected to boost the thermal efficiency (BTE) of future conventional diesel engines provided with waste heat recovery (WHR) to a level of 55%.