Digital image correlation techniques for measuring tyre-road interface parameters: Part 2-Longitudinal tyre slip ratio measurement

被引：16

作者：

Botha, Theunis R. ^{[1
]}

Els, P. Schalk ^{[1
]}

机构：

[1] Univ Pretoria, Dept Mech & Aeronaut Engn, ZA-0002 Pretoria, South Africa

来源：

JOURNAL OF TERRAMECHANICS | 2015年 / 61卷

基金：

新加坡国家研究基金会;

关键词：

Longitudinal slip; Digital image correlation; Camera; Longitudinal tyre force; Contact patch velocity;

D O I：

10.1016/j.jterra.2015.05.003

中图分类号：

X [环境科学、安全科学];

学科分类号：

08 ; 0830 ;

摘要：

Measurement of tyre longitudinal slip-ratio is often estimated from three independent measurements devices namely wheel rotation speed, vehicle speed and tyre rolling radius. This produces an expensive measurement system to indirectly determine the slip-ratio. This paper presents a method by which the slip-ratio is determined from a video camera using digital image correlation techniques. The camera, mounted in such a way that the contact patch region is captured, enables the system to measure the tyre tread speed and ground speed at the contact patch. The slip-ratio is then determined from these two measurements. (C) 2015 ISTVS. Published by Elsevier Ltd. All rights reserved.

引用

页码：101 / 112

页数：12

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