摘要
以多刚体动力学仿真软件ADAMS/Car为依托,建立车辆动力学模型、道路模型、车路耦合模型。通过改变ADAMS/Car中道路文件的路面摩擦系数,分别研究了车辆在干燥路面、潮湿路面及雨天路面的行驶状况。通过单移线和斜坡脉冲转向这2种常见工况进行仿真分析,得到了不同的车辆侧向位移曲线和车轮所受的侧向反力曲线,分析雨天对汽车行车安全的影响。单移线仿真试验结果表明:雨天路面摩擦因数为0.4,车速为60km/h时,车辆变车道容易失去控制发生意外;车速为55km/h,转向盘转角达到70°时,车辆也将失去控制;斜坡阶跃仿真试验结果表明:车速为40km/h,车辆将会失去控制。
This paper established a vehicle dynamics model,a road model and a vehicle-road coupling model by using the multi-body dynamics software ADAMS/Car.By changing road friction coefficients,the driving conditions in sunny,dry and rainy roads were simulated respectively.Single lane change text and ramp steering text were carried out,and the response output of lateral displacement was obtained.Computation results in the single lane change indicate that when road friction coefficient in rain weather is 0.4,vehicle speed is 60 km/h in the single line simulation,and the vehicle will be easily out of control.When vehicle speed is 55 km/h,and the maximum steer value is 70 in the single lane simulation,vehicle will go haywire.In the ramp steer simulation when vehicle speed is 40 km/h,vehicle will also go haywire.
出处
《交通信息与安全》
2012年第6期57-60,66,共5页
Journal of Transport Information and Safety
