基于状态反馈的车辆底盘集成H_∞鲁棒控制  

H_∞ Robust control for integrated chassis system based on state feedback

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]中国第一汽车集团技术中心,长春130011

出　　处：《吉林大学学报（工学版）》2016年第3期685-691,共7页Journal of Jilin University:Engineering and Technology Edition

基　　金：国家自然科学基金项目(51275206)

摘　　要：采用二自由度车辆模型作为被控对象简化模型,提出了一种基于状态反馈的H_∞鲁棒控制方法的车辆底盘集成控制策略,协调控制主动前轮转向系统和直接横摆力矩控制系统。直接横摆力矩控制系统基于HSRI轮胎模型的逆运算和PI控制实现。通过J-turn工况和正弦延迟工况对H_∞鲁棒控制器进行仿真验证,结果表明,所设计的车辆底盘集成H_∞鲁棒控制器具有良好的控制效果,能够明显地改善车辆的操纵稳定性。Based on the strength of state feedback,aH_∞robust control approach for integrated chassis system is proposed.The two degrees of freedom vehicle model is employed as a simplified model of the controlled object.This control approach is used to coordinate the active front wheel steering system and the direct yaw moment control system.The direct yaw moment control system is based on the inverse operation of HSRI tire model and PI control.Two typical cases,J-turn and sine with dwell,are simulated.Results show that the proposed H_∞ robust control approach for integrated chassis system has good control effect,and can significantly improve the handling and stability of the vehicle.

关 键 词：车辆工程 底盘集成控制 H∞鲁棒控制 主动前轮转向 直接横摆力矩控制 

分 类 号：U461[机械工程—车辆工程]