A Fuzzy Based Safe Power Management Algorithm for Energy Storage Systems in Electric Vehicles

Electric and hybrid vehicles (EVs & HEVs) can offer a sensible improvement of the overall vehicle environmental impact, achieving at the same time a more efficient energy use. Nevertheless, these objectives can be reached only in presence of a widespread of these technologies. Today one of the most important elements which slacken the spreading of the EVs & HEVs is the gap between the costs and the performances of the conventional cars and of those based on electric propulsion. In particular, the scanty autonomy of the electric vehicles is one of the main problems which the engineers must deal with. As the autonomy problem can be solved by a suitable battery management system, in this paper a fuzzy based safe power management system for EVs is proposed. Some computer simulations confirmed the effectiveness of the proposed system allowing an improvement of vehicle's autonomy with only a moderate degradation of performances in terms of speed and acceleration

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