新加坡地铁汤申线全自动无人驾驶列车激活方法及其激活电路

Activation Method and Activation Circuit for Singapore MRT Thomson Line FAO Trains

[目的]在全自动无人驾驶(以下简称“全自动驾驶”)列车激活电路调试及运用过程中,会出现列车无法激活的情况,进而影响列车的运营秩序,因此有必要对各种场景下的列车激活方法和激活电路进行分析和试验验证,以选择合适的改进方案解决列车无法激活的问题。[方法]介绍了使用司机室钥匙信号作为列车激活控制条件存在的问题,并对控制电路单点故障对于列车激活功能的影响进行分析,提出满足不同场景下的解决方案。[结果及结论]对于司机室钥匙信号作为列车激活的控制条件存在的问题,采用司机室钥匙和司机控制器建立机械连锁,并基于司机控制器手柄位置设计全自动驾驶模式和人工驾驶模式来控制列车激活的互锁关系,解决列车激活冲突的问题。对于控制电路单点故障无法激活列车的问题,激活控制电路采用双路冗余设计,确保若一路电路故障,另一路电路仍可以保证正常工作,提高了列车控制电路的安全性和可靠性。通过功能试验,验证了列车全自动驾驶和人工驾驶模式激活方法和激活电路的有效性。

[Objective]During the commissioning and operation process of activation circuit for FAO(fully automatic operation)trains,there are situations where the train cannot be activated,thereby affecting the operational order of the trains.Hence,it is necessary to analyze and experimentally verify the activation methods and activation circuits for trains in various scenarios,and select appropriate improvement solutions to address the unactivated train issues.[Method]Problems of using the driver′s cabin key signal as control condition for train activation are discussed,and the impact of single-point fault in control circuits on train activation function is analyzed and solutions for different scenarios are proposed.[Result&Conclusion]To address the issue of using the driver′s cabin key signal as the control condition for train activation,a mechanical interlock is established between the driver′s cabin key and the driver controller.According to the position of driver controller handle,FAO and manual operation modes are designed to control the interlocking relationship for train activation,thus resolving conflicts in train activation.To address the unactivated train problems due to single-point fault in control circuits,the activation control circuit adopts a dual-redundant design to ensure that even one circuit fails,the other circuit can still function normally,thereby enhancing the safety and reliability of the train control circuit.Through functional testing,the effectiveness of the activation methods and activation circuits for both FAO and manual operation modes is verified.