电控离合器的H_∞控制及鲁棒性分析  

H_∞ Control for Vehicle-Used Automatic Clutches

作　　者：黄宏成[1] 习纲[1] 张建武[1] 

机构地区：[1]上海交通大学机械工程学院,上海200030

出　　处：《上海交通大学学报》2001年第12期1802-1807,共6页Journal of Shanghai Jiaotong University

摘　　要：将车用电控离合器视为非线性动力系统 ,并在确定性数学模型基础上设计了鲁棒控制器 .为提高电控离合器控制器的鲁棒性 ,引入控制理论 .H∞ 给出性能权函数、鲁棒权函数、控制权函数的选择方法 ,并利用双线性变换解决了临界稳定系统的病态求解问题 .给定参数变化时 ,该系统的动态仿真结果表明 ,控制器响应 H∞ 快 ,跟踪精度高 ,鲁棒性良好 .Electronically controlled clutches for semi-automatic and AMT vehicles are treated as a nonlinear dynamic system and a robust controller is designed based upon the deterministic mathematic modeling. In real situations, there exist a series of uncertainties such as sensing noises, load changes, off-road resistance, and vibroisolation spring stiffness alternations tending to deteriorate control performance of the automatic clutch. A systematic approach was proposed for robust performance analysis of the clutch system by applying performance, robustness and control weighted functions, and a bilinear pole-shifting transform was introduced to alleviate the illness problems of solution of the critical stable system. It is shown by the simulation results obtained for the dynamic system by imposing specific parameter variations that the H∞ controller is of quick response, good tracking performance and fine robustness to system uncertainties.

关 键 词：汽车 传动 电控离合器 鲁棒性控制 

分 类 号：U463.211.2[机械工程—车辆工程]