地铁车辆制动防滑控制故障分析

Analyses of Anti-slip Control Fault in Metro Braking System

制动滑行控制一般分为空气制动滑行和电制动滑行两种控制方式,这两种控制方式相互配合,完成制动滑行的调整。在制动过程中,一般首先进行电制动滑行的调整,然后再进行空气制动滑行的调整。如果防滑控制出现故障,直接的结果就是列车制动距离过长,严重时可能导致擦轮。优化了两种滑行方式的触发方式以及两者之间的配合方式。试验结果表明,优化方案改善了列车的运营品质和行车安全。

In general, the anti-slip control in the metro brake system has two kinds of control mode, including the pneumatic brake sliding and the electric brake sliding. The completion of anti-slip adjustment needs the cooperation of both control modes. Generally, the adjustment of electric brake sliding is going ahead of that of the pneumatic brake sliding, if any fault happens in the anti-slip control, the direct result will be the longer braking distance, resulting in the worst wheel sliding flat. Therefore, the triggering mode and cooperation mode of both are optimized, the results show that this method has improved the running and safety of metro vehicle.