轨道车辆制动防滑控制系统数值建模与验证  

Numerical Modeling and Verification of Rolling Stock Braking Anti-skid Control System

作　　者：朱文健 余朝刚[1] 朱文良[1] ZHU Wenjian;YU Chaogang;ZHU Wenliang(School of Urban Railway Transportation,Shanghai University of Engineering Science,Shanghai 201620,China)

机构地区：[1]上海工程技术大学城市轨道交通学院,上海201620

出　　处：《机械科学与技术》2023年第10期1727-1734,共8页Mechanical Science and Technology for Aerospace Engineering

基　　金：国家自然科学基金项目(52072266,U1534205)。

摘　　要：基于轨道车辆制动系统三位式防滑阀工作原理,建立防滑阀数学模型,进行充排气特性仿真分析;依次建立电空转换阀、紧急阀及中继阀等阀类数学模型,构建空气制动单元模型;针对制动防滑控制系统,建立防滑控制单元及制动动力学单元模型,结合空气制动单元模型搭建四轴车辆制动防滑控制数值仿真平台;利用数值仿真平台进行列车制动防滑性能仿真分析,并通过制动距离、车速及滑动量误差量3个指标与实车在线试验数据对比。结果表明:制动距离仿真值与试验值误差小于5%;车速仿真曲线和试验曲线吻合较好,二者任意时刻的差值小于3 km/h;各个滑动间隔内的滑动量误差平均值小于20%;三者均满足指标要求,验证了所建四轴车辆制动防滑控制模型的有效性。Based on the working principle of the three-position anti-skid valve of the rolling stock braking system,a mathematical model of the anti-skid valve is established,and the simulation analysis of the charging and exhaust characteristics is carried out;And the mathematical models of electro-pneumatic switching valves,emergency valves,and relay valves are established in order to construct air brake unit models;Then,for the brake anti-skid control system,the anti-skid control unit and brake dynamics unit models are established,combined with the air brake unit model to build a four-axle vehicle braking anti-skid control numerical simulation platform.Finally,the numerical simulation platform is used to simulate and analyze the braking anti-skid performance of the train,and compare with actual vehicle online test data through three indicators of braking distance,vehicle speed and slippage error.The results show that:the error between the braking distance simulation value and the test value is less than 5%;The vehicle speed simulation curve and the test curve are in good agreement,and the difference between the two at any time is less than 3 km/h;The average value of slippage error in each sliding interval is less than 20%.All three meet the indicator requirements,verifying the effectiveness of the built four-axle vehicle brake anti-skid control model.

关 键 词：轨道车辆 制动系统 防滑控制 数值建模 

分 类 号：U270.35[机械工程—车辆工程]