The study of vehicle tire´s temperature rising mechanism

The paper discussed tire´s temperature rising mechanism when vehicle driving in steady state, namely the relation between tire stress-strain and tire´s temperature field. Tire is composed of rubber-the most important ingredient-and various composite. Robber´s viscoelasticity characteristic bring hysteresis loss when tire is rolling and heat generates in tire´s interior. The amount of hysteresis loss is related to tire stress, displacement, friction coefficient, contact area, Motoki´s heat exchange performance and tire´s rolling resistance coefficient. The change of these parameters will directly lead to the change of tire´s temperature. Authors actually measured some passenger cars´ tread, interior and crown´s temperature. On base of test data, authors analyzed tire´s real temperature condition and driving speed´s impact on tire´s temperature and got relations between driving speed and tire temperature.