Abstract
The article presents the results of an experimental and theoretical study of the energy consumption of a vehicle under different conditions. The purpose was to determine the power of the auxiliary range extender on board of the electric battery vehicle. Driving is considered both for real road conditions of a large city, and a specific driving cycle. The high validity of the results is ensured by the use of the new driving cycle WLTC. It is shown that in urban traffic conditions 5 kW auxiliary power plant is sufficient for adequate compensation of electricity consumption of a vehicle with a curb weight 2500 kg.
Highlights
Even though the share of electric vehicles today account for about 0.5%, there is already a mismatch between the electric transport development and the existing energy infrastructure [1,2,3,4]
If the use of electric transport should be considered as a recipe for reducing the environmental impact on cities, it is generally in large centers that existing power grids operate at their limits not allowing for higher transmission of electric power [11]
There should be support for clean technologies of electric transport by charging the batteries on board the vehicle using proven technical means. Such as auxiliary power generation systems based on thermal engines or fuel cells
Summary
Even though the share of electric vehicles today account for about 0.5%, there is already a mismatch between the electric transport development and the existing energy infrastructure [1,2,3,4]. Unlike electric vehicle battery systems, power generation is a well-established technology, and while the laws of energy transfer remain largely unchanged [5,6,7,8,9,10]. If the use of electric transport should be considered as a recipe for reducing the environmental impact on cities, it is generally in large centers that existing power grids operate at their limits not allowing for higher transmission of electric power [11]. Fuel cells allow for elimination of intermediate thermal and mechanical energy transformations. Their advantages include high fuel efficiency, low noise and vibration, high maneuverability for the whole range of loads. In electric vehicles the auxiliary power system cannot help the movement, and its output must be chosen according to the average power of the vehicle movement for a certain cycle
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