A STUDY OF METHODS FOR INDIRECTLY EVALUATING THE ROLLING RESISTANCE COEFFICIENT USING A ROAD SURFACE PROFILE

This paper presents the results of a study of methods for indirectly evaluating the rolling resistance coefficient from a road surface profile. In this study, a road surface profile was divided into two regions: a macrotexture region and a mega-texture roughness region (hereinafter “the roughness region”). The authors performed an analysis of two-dimensional texture data in the macrotexture region and a wavelet analysis of one-dimensional profile data in the roughness region. As a result, they were able to propose a multiple regression equation to estimate the rolling resistance coefficient using as an explanatory variable the RMS value obtained from a 0.5 mm surface area in the macrotexture region and the RMS value obtained from a profile in the wavelength range of 0.08 to 5.12 m in the roughness region. The correlation obtained between the tire/road rolling resistance coefficient is stronger than that obtained using MPD or IRI as an explanatory variable.

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  • English
  • Japanese

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  • Accession Number: 01737805
  • Record Type: Publication
  • Source Agency: Japan Science and Technology Agency (JST)
  • Files: TRIS, JSTAGE
  • Created Date: Apr 24 2020 5:31PM