基于SIMULINK的汽车高速行驶姿态的影响因素分析  

Vehicle Steering Motion Simulation Based on MATLAB/SIMULINK

作　　者：王国林[1] 杨建[1] 樊旭峰[2] 陆丹[1] 

机构地区：[1]江苏大学汽车与交通工程学院,江苏镇江212013 [2]沈阳建筑工程学院基础部,辽宁沈阳110168

出　　处：《公路交通科技》2006年第6期157-161,共5页Journal of Highway and Transportation Research and Development

摘　　要：基于MATLAB/SIMULINK,以3自由度汽车非线性动力学模型为基础,建立仿真模型对汽车行驶姿态进行仿真研究,并且模拟了汽车在极限行驶工况下的行驶姿态,较低的行驶速度,适当增加侧倾转向系数可以提高汽车的操纵稳定性。前正/后负车轮外倾角可以保证汽车在高速转向/制动时保持一定的恢复横摆力矩,提高行驶安全性。改变侧倾阻尼系数对高速转向的操纵性影响不大而对行驶的平顺性有较大影响。The dynamical model of a vehicle system with 3 degree is constructed in this paper.The simulation model is also established and the method to simulate the dynamical characteristics of the vehicle system especially in extreme motion is introduced in detail. The relatively low vehicle speed and propriety adding the roll steering coefficient can improve the vehicle handing and stability. The suitable camber angle can support the correspond yaw moment and improve driving safety. Changing the roll damping coefficient has notable effect on the comfortable riding.

关 键 词：MATLAB/SIMULINK 横摆角速度 质心侧偏角 汽车动力学 车身侧倾角 

分 类 号：U461.6[机械工程—车辆工程]