CAJ | 학술논문

轮胎和路面特性对车辆制动稳定性具有重要影响。基于路面分形理论和GW接触理论，对轮胎路面实际接触面积模型和粘弹性能量损失进行了简化，建立了改进的滑动摩擦因数模型，着重分析了轮胎和路面特性对滑动摩擦因数的作用；通过引入Fiala非线性轮胎模型，考虑了轮胎和路面特性对轮胎作用力的影响；根据15DOF整车模型的适当简化，提出了考虑轮胎动摩擦特性的整车模型。应用PC-Crash对整车模型进行了验证，使用Matlab对模型进行了仿真分析。结果表明：该模型能够表征轮胎和路面特性对车辆制动稳定性的影响，为研究车辆制动时各轮胎动态力差异提供理论基础。
륜태화로면특성대차량제동은정성구유중요영향。기우로면분형이론화GW접촉이론，대륜태로면실제접촉면적모형화점탄성능량손실진행료간화，건립료개진적활동마찰인수모형，착중분석료륜태화로면특성대활동마찰인수적작용；통과인입Fiala비선성륜태모형，고필료륜태화로면특성대륜태작용력적영향；근거15DOF정차모형적괄당간화，제출료고필륜태동마찰특성적정차모형。응용PC-Crash대정차모형진행료험증，사용Matlab대모형진행료방진분석。결과표명：해모형능구표정륜태화로면특성대차량제동은정성적영향，위연구차량제동시각륜태동태력차이제공이론기출。
The tyre and pavement features have a great influence on the vehicle braking stability. Based on the theo-ry of pavement fracture and the GW contact theory, the real contact area model and the viscoelastic energy loss of tyre-pavement are simplified. An improved sliding friction factor model is proposed for analyzing the impact of the tyre and pavement feature on the sliding friction factor;through the introduction of the nonlinear Fiala tyre model, the impact caused by tyre and pavement to the tyre force are considered. A new vehicle model which considers the dynamic friction characteristic of tyre has been proposed on basis of the simplification of the 15 DOF vehicle model. PC-Crash is applied for verifying the vehicle model and Matlab is used to carry out simulation analysis for the mod-el. The results show that, the model may accurately characterize the influence caused by the tyre and pavement characteristics to the vehicle braking stability, providing a theoretical basis for researching the difference between the dynamic forces of tyres in vehicle braking.