In addition to the standard driving resistances, a battery electric vehicle is subject to certain influences that are, due to its different design, not present in vehicles with conventional internal combustion engine drivetrains. One of the main factors affecting the reduced range of a battery electric vehicle, is the slowing of chemical processes in the rechargeable battery, due to the lower ambient temperature. Taking into account driving resistances and ambient temperature, the potential range and number of completed WLTC driving cycles were calculated. This test cycle is part of the currently valid standardized WLTP procedure for measuring fuel consumption, emissions, and vehicle range. In our analysis, boundary conditions were established that are related to various road gradients, simulated driving at different ambient air temperatures, and compliance with regenerative braking. Based on the calculations, the final results show that both the decrease in ambient air temperature and the increase in road gradient significantly affect the range and number of WLTC driving cycles completed by the battery electric vehicle.
|
