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Automotive Engineering ›› 2020, Vol. 42 ›› Issue (12): 1679-1687.doi: 10.19562/j.chinasae.qcgc.2020.12.010

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Evaluation Method of Tire Rolling Resistance and Ground-grip Performance Based on Ground Contact Characteristics

Liang Chen, Wang Guolin, Yu Kangying, Mei Ye   

  1. School of Automotive and Traffic Engineering,Jiangsu University,Zhenjiang 212013
  • Received:2020-02-26 Revised:2020-04-27 Online:2020-12-25 Published:2021-01-13

Abstract: The deformation distribution of ten 205/55R16 PCR radial tires with different tread patterns in ground contact area after vertical loading are obtained by using digital image correlation technology, and a parameterized evaluation system is constructed to express the geometric and mechanical information in ground contact area. Based on ground contact parameters, the tire rolling resistance coefficient and braking distance are predicted by using partial least square regression method. Bootstrap resampling method is adopted to conduct significance check on regression coefficient, and the ground contact parameters with significant effects on tire performance are selected. The results show that when tire-ground contact parameters are used to evaluate the rolling resistance and ground grip performance of tire, the regression equation fitting result is rather good. The outcome of this study provides a certain guiding role in high-performance tire design

Key words: tires, ground contact characteristics, rolling resistance, ground grip performance, digital image correlation technology, partial least square regression