|An investigation of the fuel economy effects of tire related parameters /
Thompson, Glenn. ;
|Environmental Protection Agency, Ann Arbor, MI. Standards Development and Support Branch.
| U.S. Environmental Protection Agency, Office of Air, Noise and Radiation, Office of Mobile Source Air Pollution Control, Emission Control Technology Division, Standards Development and Support Branch,
Fuel Economy Tests ;
Rolling Resistance ;
Tire Inflation Pressure ;
Fuel Economy/ Miles per Gallon ;
Bias-Ply Tires/ CrossPly Tires ;
Automobile tires ;
Fuel consumption ;
Rolling contact loads ;
Rolling friction ;
Internal pressure ;
Radial tires ;
Bias ply tires
|NVFEL Library/Ann Arbor, MI
|Some EPA libraries have a fiche copy filed under the call number shown.
|33 p. : charts ; 28 cm.
A program was conducted on a test track to determine the fuel consumption effects of radial vs. bias-ply tires, two radial tires from different manufacturers, and increased tire pressure. The program was designed to eliminate ambient effects by running two identical test vehicles simultaneously and alternating the parameter of interest between the two vehicles. Five different tire types were used (including the original equipment manufacturer tires from the vehicles). This study demonstrated that radial tires were six percent more fuel efficient than bias-ply tires; the radial tires from one manufacturer were four percent more fuel efficient than radial tires from a different manufacturer; and radial tires inflated to 28 psig were three percent more fuel efficient than radial tires inflated to 20 psig. This program also determined that laboratory measurements of rolling resistance are good predictors of track fuel consumption.
Includes bibliographical references (p. 26). Technical report. Cover title. "EPA-AA-SDSB-80-9." "May 1980."