Technical Reports |
Methods and Instruments for On-Board Measurement of Tyre/Road-Friction |
Writers: | Bert Breuer, Ph.D, Director, Thomas Bachmann, M.Sc, Darmstad University of Technology, Jørg Støcher, Stephan Erneati |
Published by: | Motor Sports Engineering Conference - Dec. 1994, SAE International, Dearborn, Michigan, USA |
Conclusion: | The peak occurs at values as high as 31% slip ratio. |
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Viscous/dynamic hydroplanning theory and friction tester correlation technique |
Writers: | Walter B. Horne |
Published by: | NASA, Technical Publication, 1993 |
Conclusion: | The peak friction of a rolling breaked tyre occure at variable percent slip ratios |
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A Method for Rating the skid Resistance and Micro/macrotexture Characteristica of Wet Pavements |
Writers: | F. Buhlman, Walter B. Horne |
Published by: | NASA TN D-1376 |
Conclusion: | The percent slip at which the peak friction occurs is dependent on the macro and micro texture of the pavement |
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Frictional Interaction of Tire and Pavement |
Writers: | W.E. Meyer & J.D. Walter |
Published by: | ASTM Spec. Tech. Publ. 793 |
Conclusion: | The peak friction developed by a breaked tyre on pavement will occur at different slip ratios depending on pavement, environment and tire properties |
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Unified Theory of Rubber and Tire Friction |
Writers: | Hartwig W. Kummer |
Published by: | Pennstate Automotive Research program Rep. S 71B |
Conclusion: | This Publication, is a fundamental scientific research paper showing that the peak friction occurs at variable percent slip ratios, depending on several factors |
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Fixed slip friction measurement as a means of winter road maintenance monitoring in Sweden |
Writers: | Olle Nordstrøm |
Published by: | Swedish Road and Transport Research Institute, Linkøping, Sweden |
Conclusion: | The peak friction can be even at 100% slip, and that it is usually between 5 - 25% |
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Anti-Lock Braking systems |
Published by: | SAE Book - PT-29 |
Conclusion: | "Maximum retarding for force friction occurs between 5-25% slip". See also: figure of µ-slip curve |
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Evaluation of Ground Friction Measuring Equipment under Runway Winter Conditions |
Published by: | Transport Canada Report AKPE 5152-20-7 |
Conclusion: | That on winter contaminated runways µ-peak can occur at 40-50% slip and value differences between friction measured at 18% slip and the peak can be 40-60% |
