Tires affect vehicle fuel economy mainly through rolling resistance. As a tire rolls under the vehicle's weight, its shape changes repeatedly as it experiences recurring cycles of deformation and recovery. In the process, mechanical energy otherwise available to turn the wheels is converted into heat and dissipated from the tire. More fuel must be expended to replace this lost energy. Combinations of differences in tire dimensions, design, materials, and construction features will cause tires to differ in rolling resistance as well as in many other attributes such as traction, handling, noise, wear resistance, and appearance. Once they are placed in service, tires must be properly maintained to perform as intended with respect to all attributes. The maintenance of proper inflation pressure is especially important.


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    Title :

    Tires and Passenger Vehicle Fuel Economy: Informing Consumers, Improving Performance


    Publication date :

    2006


    Size :

    182 pages



    Type of media :

    Report


    Type of material :

    No indication


    Language :

    English




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