Experimental Investigation on Rolling Resistance and Temperature of the Heavy-Duty Vehicle Tires

Tire rolling resistance and temperature are the main parameters for the design and driving of the heavy-duty tires due to their effects on fuel economy and safety. In this paper, the influence of many factors on the tire rollingresistance and temperature is studied, including speed, inflation pressure and normal load; the relationship between rolling resistance properties and temperature of heavy tires is studied based on several experiments to explore the physical mechanism and characteristics of tire rolling resistance for heavy-duty vehicles. The effects of the driving time and temperature of the tire on the rolling resistance are performed on tire’s experimental platform, in which the empirical models involved in the driving time and temperature of the tire for the rolling resistance are established using the least square method for fitting the experimental data. The experimental results demonstrate that the rolling resistance decreases significantly in the first 30 mins, and tends to be flat after 50 mins. Meanwhile, the tire tread temperature increases over time. Therefore, the research contents of rolling resistance and temperature for the heavy tire are of great significance for the energy saving and driving safety of the heavy-duty vehicles.