胎压载荷耦合效应下复合工况UniTire轮胎模型

doi:10.3901/JME.2020.16.193

机械工程学报 ›› 2020, Vol. 56 ›› Issue (16): 193-203.doi: 10.3901/JME.2020.16.193

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胎压载荷耦合效应下复合工况UniTire轮胎模型

许男¹, 周健锋¹, 郭孔辉¹, 阳超², 李飞³

1. 吉林大学汽车仿真与控制国家重点实验室长春 130022;
2. 广汽研究院广州 511400;
3. 中国汽车技术研究中心有限公司天津 300300

收稿日期:2019-09-12 修回日期:2020-03-31 出版日期:2020-08-20 发布日期:2020-10-19
通讯作者: 许男(通信作者),男,1988年生,博士,副教授,博士研究生导师。主要研究方向为轮胎力学、车辆动力学与控制、智能汽车运动控制、节能与新能源汽车。E-mail:xunan@jlu.edu.cn
基金资助:
国家自然科学基金（51875236，61790561）和中国汽车产业创新发展联合基金（U1664257，U1864206）资助项目。

UniTire Model under Combined Slip Conditions with the Coupling Effect of Inflation Pressure and Vertical Load

XU Nan¹, ZHOU Jianfeng¹, GUO Konghui¹, YANG Chao², LI Fei³

1. State Key Laboratory of Automotive Simulation and Control, Jilin University, Changchun 130022;
2. GAC R&D CENTER, Guangzhou 511400;
3. China Automotive Technology and Research Center Co., Ltd., Tianjin 300300

Received:2019-09-12 Revised:2020-03-31 Online:2020-08-20 Published:2020-10-19

摘要/Abstract

摘要： 胎压的变化会显著地影响轮胎力学特性，进而影响车辆的操纵稳定性，而当前关于胎压对复合工况轮胎力学特性影响的研究还较为匮乏。为描述不同胎压下的复合工况轮胎力学特性，建立考虑胎压影响的UniTire复合工况轮胎模型。通过试验观察和理论模型分析相结合的方法，揭示胎压和载荷耦合效应对轮胎侧纵向滑移刚度等关键力学特性的影响规律及其机理。进一步通过分析胎压载荷耦合影响下复合工况轮胎接地印迹内总切力方向的变化规律，完善总切力方向因子表达式，建立考虑胎压载荷耦合影响的复合工况轮胎模型。利用轮胎试验数据对模型进行广泛验证，结果表明所建立的UniTire复合工况模型能精确地描述大范围胎压和载荷变化下的轮胎力学特性。

关键词: 轮胎模型, UniTire, 胎压, 载荷, 复合工况

Abstract: The change of inflation pressure and vertical load will significantly affect the mechanical characteristics of tires, and then affect the handling stability of vehicles. However, the current research on the effect of inflation pressure on the mechanical characteristics of tires under combined slip conditions is still insufficient. In order to describe the mechanical characteristics of tires under different inflation pressures, the UniTire combined slip model considering inflation pressure effects is established. By means of experimental observation and theoretical model analysis, the influence and mechanism of the coupling effect of inflation pressure and vertical load on the key mechanical characteristics such as cornering and longitudinal slip stiffness of tires are revealed; Furthermore, by analyzing the change of the resultant shear force direction in the contact patch under combined slip conditions and the influence of the coupling effect of inflation pressure and vertical load, the expressions of the direction factor are improved, and a combined slip tire model is established considering the influence of the coupling effect of inflation pressure and vertical load. The model is extensively validated using tire test data, and the results show that the UniTire combined slip model can accurately describe the tire mechanical characteristics under a wide range of inflation pressure and vertical load changes.

Key words: tire model, UniTire, tire inflation pressure, vertical load, combined slip

中图分类号:

TG156

许男, 周健锋, 郭孔辉, 阳超, 李飞. 胎压载荷耦合效应下复合工况UniTire轮胎模型[J]. 机械工程学报, 2020, 56(16): 193-203.

XU Nan, ZHOU Jianfeng, GUO Konghui, YANG Chao, LI Fei. UniTire Model under Combined Slip Conditions with the Coupling Effect of Inflation Pressure and Vertical Load[J]. Journal of Mechanical Engineering, 2020, 56(16): 193-203.

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胎压载荷耦合效应下复合工况UniTire轮胎模型

UniTire Model under Combined Slip Conditions with the Coupling Effect of Inflation Pressure and Vertical Load

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