Estimation of Power Consumption for an Electric Vehicle Through Variable Parameter Modelling

Electric vehicles are massively gaining popularity due to their smaller environmental impact, higher energy efficiency and lower operating costs. This in turn dictates the necessity for a standardized power consumption estimation methodology for electric vehicles, based on varying driving conditions. This paper aims to create a vehicle model that transforms standardized driving cycles, which represent vehicle speed as a function of time, into a power draw cycle. The model considers mechanical effects, such as tire rolling resistance, aerodynamic drag, inertia, vehicle parameters - weight, power, torque, transmission parameters as well as tire parameters - class, pressure, and loaded height. This work presents examples of the developed model with a 2018 BMW i3 electric vehicle, and the Urban Dynamometer Driving Schedule (FTP-72, UDDS) and Inspection & Maintenance Driving Cycle (IM240).