Analysis of Tire Pressure on Rolling Resistance and Electric Energy Consumption in Three-Wheeled Commercial Electric Vehicle

Abstract

Tire Pressure is important in electric vehicles because it affects rolling resistance on the road surface. Research on a Geni Biru three-wheeled vehicle that has a GVW (Gross Vehicle Weight) capacity of 650 kg with the formulation of whether inappropriate tire pressures can affect the battery energy consumption. The method uses the Wheel Energy Rolling Resistance Machine and a Wattmeter to measure the rolling resistance and consumption of electric energy at a speed of 20 km/h. The first measurement of the tire pressure of 160 kPa, shows a rolling resistance of 177 N and electric consumption is 214 Wh. The tire pressure of 180 kPa has a rolling resistance of 159 N and the electric consumption is 194 Wh. The tire pressure of 200 kPa has rolling resistance of 156 N and the electric consumption is 190 Wh. The tire pressure of 220 kPa has rolling resistance of 150 N and the electric consumption is 182 Wh. The tire pressure of 240 kPa has rolling resistance of 144 N and the electric consumption is 174 Wh. The results of this study indicate that a tire pressure of 240 kPa can save electric consumption because it has a smaller frictional force.