Determination of the power dissipated by the rolling resistance of a prototype of a photovoltaic electric vehicle as a function of the variation of the mass.

Published: 6 October 2023| Version 1 | DOI: 10.17632/7n8g3fbgw6.1
Sidy Mactar SOKHNA


The purpose of this study is to calculate the power lost due to rolling resistance in an electrical power generator. The generator was developed to meet the energy needs of remote areas. To enable it to move, electric motors with a 3000 W power output are integrated into the rear wheels, which constitutes the propulsion system. Rolling resistance is one of the resistances that the generator must overcome to move. To calculate rolling resistance, we utilize the traction coefficient which takes into account inflation pressure. Additionally, the rolling coefficient, caused by the local deformation of the tire under load (mass) at the wheels, generates a resisting torque resulting in power dissipation. We observe how varying the mass of the vehicle affects the resistance value, enabling us to determine the dissipated power. Using MATLAB, we can visualize the ensuing power variations. This article demonstrates that rolling resistance significantly impacts the energy consumption depending on the suspended mass of the designed electric vehicle.



Ecole Superieure Polytechnique de Dakar