汽车DYC滑模控制器设计及系统稳定性分析  

Vehicular DYC via SMC and system stability analysis

作　　者：张为[1] 丁能根[1] 王健[1] 余贵珍[1] 

机构地区：[1]北京航空航天大学交通科学与工程学院,北京100191

出　　处：《北京航空航天大学学报》2010年第11期1353-1357,共5页Journal of Beijing University of Aeronautics and Astronautics

基　　金：国家自然科学基金资助项目(50908008);国家"863"计划资助项目(2009AA11Z216)

摘　　要：直接横摆力矩控制(DYC,Direct Yaw Moment Control)可在极限工况下产生维持车辆稳定行驶所需的附加横摆力矩,从而提高汽车的主动安全性能.建立了能够满足汽车稳定性控制测试要求的非线性汽车动力学模型,设计了用于汽车DYC的滑模变结构控制器(SMC,Sliding Mode Controller),并利用李氏函数证明了系统的稳定性,最后在Matlab/Simulink环境下对SMC的稳定性和控制效果进行了仿真测试.仿真结果表明了控制算法的有效性,并通过与PID(Proportional-Integral-Derivative)算法控制效果的对比说明了SMC具有更好的鲁棒性,拥有更好的应用潜力.Direct yaw moment control（DYC） can generate the additional yaw-moment needed to maintain vehicle stability in the limit conditions so to improve the active safety of a vehicle＇s handling.A nonlinear vehicle dynamic model which meets the requirements of vehicle stability control experiments was established,and a sliding mode controller（SMC） was designed.The stability of the SMC controller was proved with Lyapunov function.At last the stability and control effect of the SMC was verified by simulations in Matlab/Simulink.The simulation results prove the effectiveness of the control algorithm and suggeste that the robustness of SMC is better than that of proportional-integral-derivative（PID） control algorithm,which proves SMC better application potential.

关 键 词：直接横摆力矩控制 滑模变结构控制器 稳定性分析 

分 类 号：U461.6[机械工程—车辆工程]