Mobility m modern metropolitan cities is plagued by overcrowding producing congestion, low transit speed, fuel consumption, air pollution, parking problems. One of the causes of these phenomena is the growing market-share of vehicles having an excessive size with respect to their more frequent use. Technological and commercial development of vehicles specifically conceived for urban use, and therefore limited in size, not exuberant in performance, with low fuel consumption and low emissions would be certainly more desirable. Hybrid and pure electric drive trains are particularly suited to this purpose consuming and polluting very few both on a local and on a global scale. During last years, ENEA realized a series hybrid prototype, called Urb-E which made available a huge amount of experimental results, based on various control strategies used to optimize ICE utilization. Basing on those data a modular model of the propulsion system was built and calibrated. Many possible control algorithms, as well as different propulsion schemes, were compared obtaining interest information about the energy fluxes on board and on the possible ways to optimize overall vehicle efficiency.
On energy performance of an electrically-driven city-car
EVS, Electric Vehicle Symposium, 26 ; 1159-1172
2012
14 Seiten, 23 Bilder, 4 Tabellen, 27 Quellen
Conference paper
English
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