The main idea in the concept of advanced vehicles is to combine two or more power plants in order to improve the overall efficiency of the vehicle. The modeling of advanced vehicle is challenging, mainly because of the presence of several power plants in the system. After a presentation of the generalized equivalent circuit theory, including the electrical analogy and the theory of generalized gyrators and transformers, the modeling technique is compared to existing methods. Then, vehicle subsystems are modeled from the mechanical drive train to the different power plants and energy storages, according to the methodology. Some typical hybrid architectures are processed through the modeling technique and a final equivalent circuit is presented and discussed for each of them. For HEV (Hybrid Electric Vehicle) design, this domain independent method provides a visual interpretation of the set of differential equations and gives a good understanding of the electromechanical interactions, and other dynamics. The resulting equivalent circuit can be simulated and processed by any piece of engineering software, and appears to be very familiar and intuitive to electrical engineers. Finally, the study of mechanical transients is presented.
Study of hybrid electric vehicle drive train dynamics using gyrator-based equivalent circuit modeling
Untersuchung der Antriebsstrangdynamik eines Hybridelektrofahrzeuges mit Hilfe einer Ersatzschaltungsmodellierung auf Gyratorbasis
2002
12 Seiten, 26 Bilder, 4 Quellen
Conference paper
English
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