Title: THE ROLLING LOSS OF PNEUMATIC TIRES (ENERGY LOSS)
Abstract:A comprehensive review is presented of knowledge related to the tire rolling loss phenomenon. A short history is given of research on rolling friction, followed by a general definition of rolling loss...A comprehensive review is presented of knowledge related to the tire rolling loss phenomenon. A short history is given of research on rolling friction, followed by a general definition of rolling loss and its application to tire steady-state and nonsteady-state operations. Test methods and equipment are discussed, identifying problems and ways to minimize them: roadwheel tests (tire spindle force, roadwheel spindle torque, coastdown, energy, and flat-surface reduction factor), twin-roll dynamometer, flatbed tester, road tests (instrumented vehicle, vehicle coastdown, trailer, and fuel consumption), interfacility tests, and tire break-in. The influence of operational variables on rolling loss measurements is examined: speed, load, inflation pressure, deflection, interactions, ambient temperature, tire temperature, torque, slip and camber angles, and road surface texture, water, and snow. Also considered are the influence of tire variables (type, geometry, reinforcement, and rubber materials). Rolling loss is discussed in terms of its relationship to vehicle fuel consumption and to other tire performance characteristics. Rolling loss models are described and compared: empirical, thermal, viscoelastic, and thermo-viscoelastic.Read More
Publication Year: 1980
Publication Date: 1980-07-01
Language: en
Type: article
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Cited By Count: 1
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