Record Display for the EPA National Library Catalog


Main Title Variations in tire rolling resistance /
Author Thompson, Glenn D. ; Torres., Myriam
Other Authors
Author Title of a Work
Torres, Myriam.
CORP Author Environmental Protection Agency, Ann Arbor, Mich. Standards Development and Support Branch.
Publisher U.S. Environemental Protection Agency, Office of Air and Waste Management, Office of Mobile Source Air Pollution COntrol, Emission Control Technology Division, Standards Development and Support Branch,
Year Published 1977
Report Number LDTP 77-5
Stock Number PB-274 864
OCLC Number 173412714
Subjects Bias ply tires ; Equipment tests ; Radial ply tires ; Rolling resistance ; Tire Testing ; Bias-Ply Tires/ CrossPly Tires
Additional Subjects Automobile tires ; Friction ; Skid resistance ; Fuel consumption ; Wear resistance ; Loads(Forces) ; Road tests ; Tire rolling resistance ; Fuel economy
Internet Access
Description Access URL
Library Call Number Additional Info Location Last
ELBD ARCHIVE EPA LDTP-77-5 AWBERC Library/Cincinnati,OH 01/17/2024
ELCM  EPA LDTP-77-5 NVFEL Library/Ann Arbor, MI 04/18/2011 DISPERSAL
NTIS  PB-274 864 Some EPA libraries have a fiche copy filed under the call number shown. 07/26/2022
Collation 35 pages : charts ; 28 cm
The paper analyzes the tire rolling resistance data obtained in a recent EPA road load project. Variations in the observed tire rolling resistances were analyzed versus tire type, tire manufacturer, and tire size. The fuel economy effect of a change in tire types; that is, from bias to radial tires, has been previously reported and is briefly discussed. From these results it is concluded that a 10 percent change in rolling resistance will yield approximately a 2 percent change in the vehicle fuel economy. At the present time, reduction of fuel consumption through optimization of tires cannot be expected to occur since there is no uniform method of rating and reporting tire energy dissipation. The development of a consistent, uniform method of rating and reporting tire energy dissipation over cyclic driving schedules, such as the EPA test schedule, is recommended.
Includes bibliographical references (page 15). Cover title. "Technical support report for regulatory action." "LDTP 77-5." "October 1977."