Position Control Optimization of Aerodynamic Brake Device for High-speed Trains

作     者：ZUO Jianyong LUO Zhuojun CHEN Zhongkai 

作者机构：Institute of Railway and Urban Mass TransitTongji University 

出 版 物：《Chinese Journal of Mechanical Engineering》 (中国机械工程学报（英文版）)

年 卷 期：2014年第27卷第2期

页      面：287-295页

核心收录：

学科分类：0817[工学-化学工程与技术] 08[工学] 082304[工学-载运工具运用工程] 0807[工学-动力工程及工程热物理] 080204[工学-车辆工程] 0802[工学-机械工程] 0811[工学-控制科学与工程] 0801[工学-力学（可授工学、理学学位）] 0823[工学-交通运输工程] 

基　　金：supported by National Natural Science Foundation of China(Grant No.61004077) Fundamental Research Funds for the Central Universities of China(Grant No.2860219022) Foundation of Traction Power State Key Laboratory of Southwest Jiaotong University,China(Grant No.TPL1308) 

主　　题：high-speed train aerodynamic brake hydraulic position control optimization. 

摘      要：The aerodynamic braking is a clean and non-adhesion braking, and can be used to provide extra braking force during high-speed emergency braking. The research of aerodynamic braking has attracted more and more attentions in recent years. However, most researchers in this field focus on aerodynamic effects and seldom on issues of position control of the aerodynamic braking board. The purpose of this paper is to explore position control optimization of the braking board in an aerodynamic braking prototype. The mathematical models of the hydraulic drive unit in the aerodynamic braking system are analyzed in detail, and the simulation models are established. Three control functions--constant, linear, and quadratic--are explored. Two kinds of criteria, including the position steady-state error and the acceleration of the piston rod, are used to evaluate system performance. Simulation results show that the position steady state-error is reduced from around 12-2 mm by applying a linear instead of a constant function, while the acceleration is reduced from 25,71-3.70 m/s2 with a quadratic control function. Use of the quadratic control function is shown to improve system performance. Experimental results obtained by measuring the position response of the piston rod on a test-bench also suggest a reduced position error and smooth movement of the piston rod. This implies that the acceleration is smaller when using the quadratic function, thus verifying the effectiveness of control schemes to improve to system performance. This paper proposes an effective and easily implemented control scheme that improves the position response of hydraulic cylinders during position control.