Investigation of the holistic energy demand of different power train topologies under realistic boundary conditions

This paper presents a novel approach to analyse and compare the auxiliary loads’ impact on the energy balance for different drivetrains considering user behaviours and weather conditions in Germany. To investigate this influence a method containing the German driving performance, derived from the study ‘Mobilität in Deutschland’ in combination with the ‘Artemis’ driving cycles and German climate conditions out of ‘meteonorm’ datasets clustered by the population and weighted by the vehicle distribution is established and explained. With these boundary conditions the drivetrains Fuel Cell Electric Vehicle (FCEV), Battery Electric Vehicle (BEV) as well as conventional gasoline vehicles with an Internal Combustion Engine (ICE gasoline) have been simulated.With the developed methodology the influence of different driving cycles (NEDC, WLTC, Artemis urban, rural and motorway) and the auxiliary loads’ impact for the seasonal, German weather conditions as well as the extreme weather conditions (coldest winter and hottest summer day) were analysed. A significant influence on the energy consumption, the impact on the available driving range and the need to investigate solutions to reduce the auxiliary loads’ consumption in future work is shown.