Ambient Temperature Effects on Tire Rolling Loss
Abstract The temperature of the ambient air surrounding an operating tire is an important component of the complex thermal system producing rolling loss. Rolling loss is defined as the amount of heat generated by the rolling tire per unit distance. Figure 1 indicates that part of this heat is conducted and stored within the tire body, part is dissipated at the tire surface. The dissipated heat is directly affected by the temperature of the ambient air. Since all heat modes are interactive, the ambient air temperature must therefore influence the heat generated by the tire and, hence, its rolling loss. Presently, relations between ambient air temperature and rolling loss can be established only through measurements; mathematical models of tire heat generation and distribution have not reached a stage where they can be easily applied.