Tyres influence on vehicle fuel economy

Abstract

The development of technologies and the need for rationally use of the available energy resources, continuously leading to the implementation of tyre construction solutions that ensure low fuel consumption. Recent studies, from various sources, have demonstrated the potential for reducing vehicle consumption and emissions by using premium tyres, with fuel efficiency class "A". Moreover, for electric vehicles, tyres with low rolling resistance coefficient have been developed in order to increase driving autonomy. In this paper, the influence of tyres on fuel consumption is indirectly established. Using a function and performance chassis roller dynamometer, the RRC variations for different types of tyres and their rolling conditions were determined. Having statistical data on the influence of the power lost through the rolling resistance of the wheels, some correlations were made regarding the influence of the tyres and the speed of the vehicle on the fuel consumption.