Recently commercial vehicles with hybrid electric drivetrains found their way into commercial markets. On one hand, they offer fuel saving potential in different driving situations and on the other hand it is possible to keep emissions within the future legal requirements. For example, in future it may be necessary to drive in pedestrian areas without any emissions. Nevertheless, these new drivetrain topologies also offer new challenges for engineers. Control strategies must be developed to reduce fuel consumption and to secure the limitation of emissions specified by law. Before a hybrid vehicle is engineered, an analysis should be done to verify the highest possible fuel saving potential that is reachable for an implemented, causal hybrid operation strategy. This helps to evaluate hybrid energy management controls. The following article explains a method to determine the maximum fuel saving potential of hybrid vehicles. It is also shown, that fuel consumption of tractor semi-trailer vehicles, driven in their daily long haul application area, can theoretically be reduced with a parallel hybrid drivetrain. The high usable power of Li-Ion batteries and electric motors extends the current possibilities of the driven auxiliaries, too. A combination of intelligent controllers and auxiliaries or the integration of the auxiliary operation strategy into the vehicle energy management system can lead to further fuel consumption reductions.
Electrification of tractor trailer vehicles - Niche or mainstream?
2013
12 Seiten, 4 Bilder, 1 Tabelle, 6 Quellen
Aufsatz (Konferenz)
Englisch
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