模型预测控制的主动横向稳定杆研究  

Research on MPC-Based Approach to Active Anti-Roll Bar

作　　者：夏长高[1] 任英文 陈松[1] 

机构地区：[1]江苏大学汽车与交通工程学院,江苏镇江212013

出　　处：《机械设计与制造》2017年第12期85-89,共5页Machinery Design & Manufacture

基　　金：国家自然科学基金(51275211);江苏省高校自然科学基金(14KJB580003)

摘　　要：针对极限工况下汽车的操纵稳定性问题,建立八自由度整车模型以及小角度假设下的非线性动力学模型。通过MATLAB软件对理想侧倾角关于侧向加速度的分段函数进行拟合处理,得到理想侧倾角的连续目标函数。设计基于模型预测控制理论的主动横向稳定杆控制器,完成了CarSim和Simulink联合仿真平台搭建,并在双移线和弯道制动这两种典型操纵稳定性评价工况下进行仿真试验。从试验数据对比分析中可以得出,在两种典型试验工况下车辆的性能评价参数值均得到较为理想的改善,进而提高了对车辆的稳定性控制。An 8 DOF vehicle dynamics model andnonlinear dynamic model under the assumption of small angleis established, aming at vehicle handling and stability problem under the condition of the limit. The continuous objective function is obtained by fitting the piecewise function of the ideal angle to the acceleration with the MATLAB tool. MPC-based controller of active anti-roll bar was designed, and the CarSim and Simulink joint simulation platform was built, and the simulation test was carried out under two typical operating conditions. From the test data, it can be concluded that the evaluation parameters of the two test conditions are all improved, and also improve the vehicle stability.

关 键 词：车辆 模型预测控制 主动横向稳定杆 操纵稳定性控制 

分 类 号：TH16[机械工程—机械制造及自动化] U461.2[机械工程—车辆工程]