Motor Power Calculation for Power-Train of Electric Vehicles and Estimation of its Performance Parameters Using MATLAB/Simulink

This paper presents calculation of motor power for power-train of electric vehicles. An overview of various forces acting on the vehicle while moving includes rolling resistance, aero dynamic drag, hill-climbing and acceleration forces are briefly discussed. Based on these forces motor rating is selected and accordingly battery capacity and converters are chosen. MATLAB/Simulink model of complete electric vehicle is developed and vehicle dynamics are tested for particular driving cycle. The various performance parameters like time taken to reach peak speed, driving range of vehicle, state of charge of battery are measured and analyzed.