The MODELLING OF ENERGY CONSUMPTION OF THE BATTERY ELECTRIC VEHICLES
Keywords:
BEV, EM, MATLAB, simulation, electric battery, UDDSAbstract
Battery electric vehicles (BEVs) are gaining larger market share. Accurate computation of the BEV’s energy consumption is important to avoid running out of energy while driving. Therefore, it is important to develop a backward model which estimates the energy consumption of the BEV. This article describes a model that evaluates a BEV’s energy consumption. The aim of this paper is modeling of BEV using MATLAB/Simulink software based on a real BMW i3 2014 data. The model consists of vehicle dynamics, single-speed transmission gearbox, electric machine and battery blocks. The detailed analysis on each block is performed and the governing equations for each block is derived taking into account both traction and regeneration modes. Moreover, constraints in terms of limitation in power for each block is considered. Finally, the results of the model are compared with the experimental data which obtained from Argonne national laboratory database in EPA Urban Dynamometer Driving Schedule (EPA UDDS) driving cycle.
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