【摘要】 直接横摆力矩控制(Direct Yaw Moment Control,DYC)能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,从而提高车辆的主动安全性能。采用"Dugoff"轮胎模型,运用MATLAB/SIMULINK软件建立了十六自由度非线性车辆模型和二自由度参考模型,基于滑模变结构控制理论,分别设计了以横摆角速度为控制变量的DYC控制器和以质心侧偏角为控制变量的DYC控制器,并在极限工况下进行仿真。仿真结果表明:所设计的控制器能有效控制车辆的横摆角速度和质心侧偏角,提高了车辆的操纵稳定性。更多还原

【Abstract】 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. Use the "Dugoff"tire model,16-dof nonlinear vehicle model and 2-dof linear vehicle reference model was built by using the MATLAB /SIMULINK. Yaw rate DYC controller and sideslip angle DYC controller was designed by using sliding mode control theory. The results show that controller can effectively control the vehicle yaw rate and slip angle under extreme conditions,it can improve the vehicle stability.更多还原