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

题名：	Tires and Passenger Vehicle Fuel Economy: Informing Consumers, Improving Performance
作者：	empty
关键词：	Tires##Passenger vehicles##Fuel economy##Rolling resistance##Deformation##Recovery##Mechanical energy##Lost energy##Tire maintenance##Inflation pressure##Energy consumption##Reduction##
摘要：	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.
总页数：	182
报告类型：	科技报告