地铁电空制动阀防滑特性分析

Analysis of electro-pneumatic vlave and anti-sliding properties in subway

制动是地铁列车安全运行的重要环节,而制动过程中的防滑控制是缩短制动距离并安全制动的有效途径。文章通过MATLAB编程对NABTESCO制动系统的控制特性进行计算分析,根据防滑控制与粘着的关系,分析滑行产生的原因并建立数学模型,根据防滑性能随速度差、减速度、滑移率等参数的变化控制制动力,使防滑器既有良好的防滑作用,又能充分利用粘着。

The control feature of NABTESCO braking system is analyzed by MATLAB program in this paper. According to the relation between anti-sliding control and stickiness, the causes of the taxiway are analyzed and mathematical models are established to show how the antiskid change. According to the speed difference, deceleration etc. control braking force is made to make the skid device with both good anti-skid function, and can make full use of stickiness.