||Tire rolling resistance measurements at initial inflation pressures of 45 PSIG and 26 PSIG /
Burgeson, Richard N.
||Environmental Protection Agency, Ann Arbor, MI. Standards Development and Support Branch.
|| U.S. Environemental Protection Agency, Office of Air and Waste Management, Office of Mobile Source Air Pollution Control, Emission Control and Technology Division, Standards Development and Support Branch,
Tire Testing. ;
Rolling Resistance. ;
Tire Inflation Pressure. ;
Belted Tires. ;
Bias-Ply Tires/ Crossply Tires. ;
Automobile tires ;
Rolling friction ;
Exhaust emission ;
Fuel consumption ;
Air pollution ;
||NVFEL Library/Ann Arbor, MI
||Most EPA libraries have a fiche copy filed under the call number shown. Check with individual libraries about paper copy.
|| p. : charts ; 28 cm.
A recent EPA Technical Report (1) presents the results of a program which relates tire rolling resistance measurements conducted on a Clayton twin small-roll dynamometer to those on a LABECO single large roll (48 in. diameter) dynamometer. The report extrapolates the results obtained on the LABECO to the road by the application of a curvature correction factor developed as a result of tire testing on both a flat surface machine and a large (67 in. diameter) roll dynamometer. This factor has been reported in the technical literature (2). In the EPA study, all tests were conducted at 45 PSIG cold inflation pressure which is the typical tire pressure used for emissions and fuel economy testing on the dynamometer. In order to determine the effect of tire pressure on rolling resistance, data were collected on the same tires used in the above study at a cold inflation pressure of 26 PSIG. These data were then combined with the 45 PSIG data for statistical comparison.
Includes bibliographical references (p. ). Technical report. Cover title. "LDTP 78-11." "May 12, 1978."