基于鲁棒L_2-L_∞/H_∞的车辆底盘集成控制  

Integrated control of vehicle chassis system based on robust L_2-L_∞/H_∞ method

作　　者：李静[1] 张家旭 

机构地区：[1]吉林大学汽车仿真与控制国家重点实验室,长春130022 [2]中国第一汽车股份有限公司技术中心,长春130011

出　　处：《吉林大学学报（工学版）》2016年第6期1757-1764,共8页Journal of Jilin University:Engineering and Technology Edition

基　　金：国家自然科学基金项目(51275206)

摘　　要：基于连续时间系统的鲁棒L2-L_∞及H_∞性能判据,推导出新的状态反馈的鲁棒L_2-L_∞/H_∞控制方法,并将其转化为具有较低保守性的线性矩阵不等式组的凸优化问题。利用该方法设计车辆底盘集成控制策略,协调控制主动前轮转向系统和主动悬架系统。采用Matlab/Simulink与Carsim联合仿真对典型工况进行验证,结果表明:所设计的车辆底盘集成L_2-L_∞/H_∞控制器在车辆极限条件下具有良好的协调控制性能,能够有效提高车辆的稳定性和防侧翻能力。Based on robust L2-L∞/H∞ performance criteria for continuous time system, a new approach to design robust L2-L∞/H∞ controller was proposed, which was then transformed into convex optimal problem with constrains of linear matrix inequalities with low conservative. Using this method, the vehicle chassis integrated control strategy was developed to coordinate active front wheel steering system and active suspension system. Typical cases were simulated using Matlab/Simulink and Carsim. Results show that the robust L2-L∞/H∞ controller for vehicle chassis integrated system has good control effect, and can significantly improve the stability of the travelling direction and anti- rollover capability of the vehicle.

关 键 词：车辆工程 鲁棒L2-L∞/H∞控制 车辆底盘集成 主动前轮转向 主动悬架系统 

分 类 号：U461[机械工程—车辆工程]