摘要
结合线性2自由度车辆动力学模型建立了车辆转向时的AFS数学模型,在Matlab/Simulink中建立了该数学模型的系统仿真模块,得到3组不同变量(不同车速、前轮转角和道路转弯半径)下的前照灯转角变化曲线。仿真结果表明,车辆动力学因素在汽车转向过程中对前照灯转角有一定影响;基于车辆动力学的AFS能够有效提高驾驶员可视范围,使车辆驾驶更加安全可靠。
By using two-degree-of-freedom vehicle linear dynamics model, AFS mathematical model for the turning operation has been established,a system simulation module of this mathematical model has been established in Matlab/ Simulink,and a variation curve of headlamp turning angle are obtained under three groups of different variables （under different vehicle speed,front wheel turning angle and turning radius）.The simulation results show that the vehicle dynamics has impact on headlamp turning angle in the turning of the vehicle;AFS based on vehicle dynamics can effectively improve driver＇s range of visibility and improve driving safety and reliability.
出处
《汽车技术》
北大核心
2009年第5期38-39,49,共3页
Automobile Technology
基金
天津市自然科学基金(项目编号:07JCYBJC04700)
天津市高校科技发展基金(项目编号:20051023)
关键词
AFS
前照灯转角
动力学模型
仿真
AFS,Headlamp steering angle,Dynamics model,Simulation
