| 轿车轮胎湿地抓着性能测试方法（车辆法）对比分析 |
| Comparative Analysis of Wet Grip Performance Test Methods （Vehicle Method） for Passenger Car Tires |
| 投稿时间：2024-05-21 修订日期：2024-05-21 |
| DOI：10.12136/j.issn.1000-890X.2026.02.0146 |
| 中文关键词: 轿车轮胎 湿地抓着性能 车辆法 制动距离 |
| 英文关键词: passenger car tire wet grip performance vehicle method braking distance |
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| 中文摘要: |
| 对轿车轮胎湿地抓着性能测试方法GB/T 21910—2017和ECE R117（车辆法）的差异进行分析。通过试验对比发现，在轮胎负荷及试验湿路面温度和环境温度相差不大的情况下，GB/T 21910—2017与ECE R117测得的试验轮胎的制动距离相差不大，但因轮胎充气压力和标准参照测试轮胎（SRTT）生产商不同，两个标准测得的SRTT制动距离差异较大，最终测算的试验轮胎湿地抓着性能指数差异显著。本研究可为有效测试轿车轮胎湿地抓着性能提供参考依据。 |
| 英文摘要: |
| As one of the tens of thousands of components in automobiles, tires play a crucial role in driving. Active safety measures such as braking and ABS in cars require tires to be implemented. In recent years, how to shorten the braking distance of tires on wet roads has become a hot research direction for enterprises. At present, the national standard for wet grip performance testing of sedan tires is GB/T 21910-2017, and the European standard is ECE R117. This article analyzes the differences between (the vehicle method)for wet grip performance of passenger car tires in GB/T 21910-2017 and ECE R117, providing a reference for correctly testing the wet grip performance of passenger car tires.The differences of the wet grip performance test methdods（GB/T 21910—2017 and ECE R117）（vehicle method） for passenger car tires were analyzed.Through experimental comparison，it was found that when tire loads and testing wet road surface temperatures and ambient temperatures were not significantly different，the braking distance of the test tire tested by GB/T 21910—2017 and ECE R117 was not significantly different，but due to the differences in tire inflation pressures and standard reference testing tire（SRTT） manufactures，there was a significant difference in the braking distance of SRTT tested by the two standard，so the final tested and calculated wet grip performance index of the test tire also showed a significant difference.This study could provide a reference for effectivly testing the wet grip performance of passenger car tires. |
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