时速250km以上高速列车制动模式曲线算法  

Braking mode curve arithmetic of high-speed train above 250 km·h-1

作　　者：上官伟[1,2] 蔡伯根[1] 王晶晶[1] 王剑[1,2] 王利[1] 

机构地区：[1]北京交通大学电子信息工程学院,北京100044 [2]北京交通大学轨道交通控制与安全国家重点实验室,北京100044

出　　处：《交通运输工程学报》2011年第3期41-46,54,共7页Journal of Traffic and Transportation Engineering

基　　金：国家自然科学基金项目(60736047);铁道部科技研究开发计划项目(2009X003-G;2010X001-A;Z2009-059);轨道交通控制与安全国家重点实验室自主研究课题(RCS2009ZT013);中央高校基本科研业务费专项资金项目(2009JBM005)

摘　　要：研究了时速250 km以上高速列车制动系统,分析了高速列车的运行阻力、制动力与制动距离。根据目标距离模式曲线理论,建立了高速列车的制动模式曲线分段迭代模型。应用MAT-LAB/Simulink软件,分析了CRH2-300型高速列车在平直道上、15‰与25‰直坡道上的运行阻力的变化,对比了CRH2-300型和CRH3型高速列车在制动初速为300 km.h-1时的常用和紧急制动曲线。计算结果表明:在平直道上,CRH2-300型高速列车紧急制动距离为2 786.68 m,CRH3型高速列车紧急制动距离为3 319.37 m,均满足紧急制动距离小于3 700 m的制动要求;仿真制动曲线和实际制动曲线基本一致,验证了分段迭代算法的有效性。The braking system of high-speed train above 250 km·h-1 was studied,and the running resistance,braking force and braking distance of high-speed train were analyzed.Based on curve theory of target distance mode,the piecewise iteration model of braking mode curve for high-speed train was proposed.With MATLAB/Simulink software,the changes of running resistances on flat-straight line,direct ramp with grade 15‰ and direct ramp with grade 25‰ for CRH2-300 type high-speed train were analyzed,and the normal braking curves and emergency braking curves of CRH2-300 type and CRH3 type high-speed trains at initial braking speed 300 km·h-1 were compared.Calculation result indicates that the emergency braking distance of CRH2-300 type high-speed train is 2 786.68 m on direct ramp,the emergency braking distance of CRH3 type high-speed train is 3 319.37 m on direct ramp,and both of them are less than 3 700 m,which is the maximum braking distance of braking requirement.Simulation braking curves almost consistent with actual braking curves,which verifies the validity of piecewise iteration algorithm.1 tab,12 figs,10 refs.

关 键 词：高速列车 制动模式 常用制动 紧急制动 制动距离 运行阻力 模式曲线 

分 类 号：U260.138[机械工程—车辆工程]