This content is not included in your SAE MOBILUS subscription, or you are not logged in.
Effect of Testing Conditions on Rolling Resistance of Automobile Tires
ISSN: 0148-7191, e-ISSN: 2688-3627
Published February 01, 1984 by SAE International in United States
Annotation ability available
The effects of some test condition variables on tire rolling resistance results are presented and discussed from the viewpoint of establishing good testing practice. A designed experiment study was made on simultaneous effects of changes in load, speed, and inflation pressure on a radial and bias tire. All main and interaction effects were significant except for speed-load interaction on the radial tire and load-load interaction (curvature effect) on each tire. Quantitative effects of unit changes in each variable at any level of the other variables showed that load control is the most critical. Rolling resistance was shown to be significantly higher on a Safety Walk test wheel surface than on bare steel. No significant difference in scatter of results was found, however. Rolling resistance of a set of light truck tires was esentially the same on worn as on new Safety Walk. Results on sets of replicate tires suggested that four tires in each set are enough to characterize the set. A warm-up time of 20-25 minutes was shown to be sufficient to develop equilibrium air pressure. Data are presented to show how a safe upper limit to the test speed for a given tire can be determined, and how a safe service speed could be estimated without requiring that the tire be run to failure.
|Technical Paper||Interlaboratory Tests for Tire Rolling Resistance|
|Technical Paper||Effect of Ambient Temperature on Radial Tire Rolling Resistance|
CitationFuller, D., Hall, G., and Conant, F., "Effect of Testing Conditions on Rolling Resistance of Automobile Tires," SAE Technical Paper 840068, 1984, https://doi.org/10.4271/840068.
- Schuring, D.J. “The Rolling Loss of Pneumatic Tires,” Rubber Chem. and Technol. 53 3 630 1980
- Claxton, W. E. Conant, F.S. “Designed Experiments Manual,” 1974 available from Central Research The Firestone Tire and Rubber Co. Akron, Ohio.
- Janssen, M.L. Hall, G.L. “Effect of Ambient Temperature on Radial Tire Rolling Resistance,” SAE Paper 800090 1980
- Schuring, D.J. Hall, G.L. “Ambient Temperature Effects on Tire Rolling Loss,” Rubber Chem. and Technol. 54 5 1113 1123 1981
- Walter, J. D. Conant, F.S. “Energy Losses in Tires,” Tire Science and Technol. 2 4 235 260 1974
- Luchini, J.R. “Rolling Resistance Tests on Smooth and Textured Surface Test Wheels,” Paper #39, ACS Rubber Division Meeting Oct. 1982
- Velinsky, Steven A. White, Robert A. “Increased Vehicle Energy Dissipation Due to Changes in Road Roughness, with Emphasis on Rolling Losses,” SAE paper 790653 1979
- Ames, W.F. “Literature Review on Traveling Waves,” Textile Research Journal 40 6 498 507 1970
- Gelming, D.A. Bowers, P.A. “Tire Testing for Rolling Resistance and Fuel Economy,” Tire Science and Technol. 2 4 235 269 1974