| 基于乘用车操纵稳定性的子午线轮胎动态接地响应的研究 |
| Research on Dynamic Ground Response of Radial Tire Based on Passenger Car Handling Stability |
| 投稿时间：2023-02-04 修订日期：2023-02-04 |
| DOI：10.12136/j.issn.1000-890X.2024.11.0811 |
| 中文关键词: 乘用车 子午线轮胎 动态接地响应 接地印痕 有效接地面积控制系数 操纵稳性能 |
| 英文关键词: passenger car radial tires dynamic ground response footprint effective ground area control coefficien |
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| 中文摘要: |
| 研究基于乘用车操纵稳定性的子午线轮胎动态接地响应。结果表明：随着车辆转向时车身侧向加速度增大，轮胎接地印痕包络轮廓由椭圆形向三角形过渡；当车身侧向加速度达到4.0 m·s-2以上时，轮胎接地印痕长轴长度增大，但有效接地面积减小轮胎带束层总宽度减小有利于提高侧向抓着性能，但易引起胎肩生热增大；以有效接地面积控制系数及其加权计分可以评估不同设计方案轮胎的侧向抓着性能，提高轮胎操控性能改善方案筛选效率，解决车辆操纵稳定性与轮胎抓着性能统筹优化问题。本研究可为轮胎配套过程中性能协同提升提供参考。 |
| 英文摘要: |
| The dynamic ground response of the radial tire based on the passenger car handling stability was studied.The results showed that as the lateral acceleration of the vehicle body increased during the vehicle steering，the footprint envelope profile of the tire transitioned from an elliptical shape to a triangular shape，and when the lateral acceleration of the vehicle body reached 4.0 m·s-2 or more，the long axis length of the footprint of the tire increased，but the effective ground area decreased.The decrease of the belt total width of the tire was beneficial for improving lateral grip performance，while caused an increase of heat generation of the shoulder.The concept of the effective ground area control coefficient and weighted calculation score was proposed，which could evaluate the lateral grip performance of different design scheme tires，improve the screening efficiencies of the handling perfermance improvement schemes of the tires，and the overall planning and optimization problems of the handling performance of the vehicle and the grip performance of the tire were solved.The research results could provide reference for the collaborative improvement prefermance of the tire douring OE process. |
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