铁道车辆制动系统防滑控制仿真与试验研究

Simulation and Experimental Research on Anti-sliding Control of Railway Vehicle Braking

摘要:

通过建立铁道车辆单轮对运动学模型、轮轨蠕滑力模型、制动过程的制动力开环与闭环控制模型,分析了单轮对制动工况下的防滑控制仿真方法.针对电空直通制动系统防滑单元,基于DSHplus软件建立了气路仿真模型与防滑控制策略仿真模型.通过与Matlab联合仿真,分析了电空直通制动系统防滑单元的气路特性与控制参数的选择,研制了制动防滑单元并进行了相关试验.结果表明,该仿真模型可用于模拟轮对制动过程的滑行工况,可用于防滑单元的集成设计与参数优化.

Abstract:

By building up the railway wheelset kinematics model,creep force model,braking force open-loop and closed-loop control model,the simulation method on anti-sliding control of braking system is discussed.Regarding the anti-sliding control unit of electro-magnetic brake system,the pneumatic circuit model and anti-sliding control strategy model are also built up based on the DHSplus software.Co-simulated with MATLAB,the characters and parameters of anti-sliding control unit of electro-magnetic brake system are analyzed.In this work,the hardware and software of an anti-sliding device are designed.Some tests and simulation results show that these models are reasonable and useful to speed up the development and integration of anti-sliding control system.