台试轮胎滚动阻力模型应用研究

Application of Bench-based Rolling Resistance of Tires Model

为解决利用底盘测功机对汽车动力性评价时 ,因轮胎滚动阻力在滚筒上损耗功率未知 ,造成评价结果失准的问题 ,论文基于双滚筒上轮胎滚动阻力与速度、胎压、轴荷及底盘测功机滚筒直径和间距之间的关系 ,建立了汽车动力性检测模型。通过试验验证 ,利用该模型可提高汽车动力性的检测精度。

At present, when an automobile dynamic property is evaluated by the chassis dynamometers, the evaluating value is not accurate enough because of the wasting power by tire rolling resistance on dual roller. So the tire wasting power is an important factor in testing precision of automobile dynamic property. In this paper, on basis of the relations of rolling resistance to tire pressure, speed, load, roller diameter and gap on dual roller test desk, the automobile dynamic property testing model was established. The experimental result showed that the testing model could improve the automobile dynamic testing precision.