| 基于LQR理论的车辆液压能量再生系统特性仿真研究 |
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| 引用本文： | 杨前明,李鑫,陈毕胜,徐萌.基于LQR理论的车辆液压能量再生系统特性仿真研究[J].山东科技大学学报(自然科学版),2009,28(2). |
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| 作者姓名： | 杨前明 李鑫 陈毕胜 徐萌 |
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| 作者单位： | 1. 山东科技大学,机械电子工程学院,山东,青岛,266510
2. 山东商业职业技术学院,信息技术学院,山东,济南,250103 |
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| 摘 要： | 以车辆液压能量再生系统为研究对象,以二次元件(液压马达工况)跟随车辆传动主轴转速为控制目标,建立了电液控制系统状态数学模型.针对引入线性二次型最优控制(LQR)理论前后的电液控制系统进行了数字仿真与分析.仿真结果表明:能量再生控制系统引入LQR理论后,响应过程的过渡阶段振荡与超调量获得较大幅度抑制与衰减,具有更优的响应特性;此外控制系统响应性能的优劣与加权矩阵Q、R参数取值有密切关系.
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| 关 键 词： | 车辆能量回收 线性二次型最优控制 LQR函数 MATLAB仿真 |
Simulation Research on Hydraulic Energy Regenerative System of the Vehicle Based on LQR Theory |
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| YANG Qian-ming,LI Xin,CHEN Bi-sheng,XU Meng.Simulation Research on Hydraulic Energy Regenerative System of the Vehicle Based on LQR Theory[J].Journal of Shandong Univ of Sci and Technol: Nat Sci,2009,28(2). |
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| Authors: | YANG Qian-ming LI Xin CHEN Bi-sheng XU Meng |
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| Institution: | 1.College of Mechanical&Electronic Engineering;SUST;Qingdao;Shandong 266510;China;2.Information Technology School;Shandong Institute of Commerce and Technology;Jinan;Shandong 250103;China |
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| Abstract: | Taking hydraulic hybrid vehicle as a study object and the speed following the secondary component(hydraulic motor mode)as the control objective,the state space math model of the electrical-hydraulic control system has been established in this paper.The math model of the control system that imported the linear quadratic optimal control theory or not has been simulated and analyzed.The results of simulation showed that the vibration and overshoot of the response course of the control system inhibited and atte... |
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| Keywords: | vehicle energy regeneration linear quadratic regulator LQR function MATLAB simulation |
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