Toward an International Standard for Measuring Energy Loss of Tires 841239

A brief discussion of the physical concept of tire energy loss and its relation to automobile performance is followed by a general definition of tire rolling loss. The effects of bearing losses, load, pressure, speed, road surface texture and other important factors on rolling loss are explained, and conclusions are drawn with respect to a fair representation of these factors in a generally accepted procedure for measuring tire rolling loss. General test requirements are outlined, and suggestions are made for a unified international test procedure.


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