Theoretical evaluation of the effect of operating parameters on electric vehicle energy consumption and driving range

The paper presents theoretical evaluation of the effect of operating parameters on electric vehicle energy consumption and driving range. The objective of this study was to analyse the effect of temperature (at constant pressure) and traction properties on the energy consumption and driving range related to it of a chosen electric vehicle. The test methods assumed the analysis of parameters of the test object based on a simulation model. The evaluation involved a Nissan Leaf vehicle equipped with an electric motor, the torque characteristic curve of which was used in the test model. The values of basic and additional resistance to motion for the adopted conditions: external temperature and pressure-dependent air density, and vehicle technical parameters, such as its weight, capacitance of batteries, vehicle dimensions, type of drive system, drag coefficient and tyre dimensions, were determined. Basing on these data and the characteristic curve of engine torque, electric vehicle energy consumption and driving range were determined. The following relationships were obtained because of the analysis: vehicle energy consumption / vehicle driving range and external temperature, vehicle energy consumption / vehicle driving range and vehicle acceleration, vehicle energy consumption / vehicle driving range and acclivity slope. It was proven that the operating parameters could considerably increase the energy consumption and the driving range of an electric vehicle.

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Opracowanie ze środków MNiSW w ramach umowy 812/P-DUN/2016 na działalność upowszechniającą naukę.