Train level control method, train control unit and rail transit vehicle

Abstract

The invention discloses a train level control method, a train control unit and a rail transit vehicle, and the method comprises the steps: judging whether an automatic driving mode signal is detected or not, and if not, ending; and if yes, carrying out following steps. According to the method, it is guaranteed that a driver can decelerate or stop the train in advance under the emergency condition, the problem that the train rushes out of the standard due to mis-operation of the driver or other factors can be effectively solved, the running safety is greatly improved, and the operation efficiency of the train is improved.

Description

technical field [0001] The invention relates to the technical field of rail transit, in particular to a train level control method, a train control unit and a rail transit vehicle. Background technique [0002] When the subway train is running normally, it mainly adopts the automatic driving (ATO) mode. In this mode, the traction, braking, grade signal, door opening and closing, station announcement, etc. of the train are all controlled by the signal system, and the driver does not need to participate. When an emergency occurs on the train in the automatic driving mode, such as pedestrians or other obstacles appearing on the track, or there is a special situation on the train itself, the driver needs to take over the control of the train. At this time, the driver can operate the controller handle to control The train stops early or slows down. When the vehicle control unit is in ATO mode, if it detects the level signal of the controller handle (the level signal of the contr...

AI Technical Summary

Problems solved by technology

When the vehicle control unit is in ATO mode, if it detects the level signal of the controller handle (the level signal of the controller handle includes the traction position signal, the fast braking position signal and the braking position (that is, the normal braking position) signal) change, the level signal of the controller will be used to control the operation of the train. Since the source of the level signal changes, the size of the level signal will change. Under braking conditions, if the level signal of the controller is greater than If the level signal of the signal system is used, the train will stop in advance (substandard). If the level signal of the controller is lower than the level signal of the signal system, the train will stop later (marked). Under normal circumstances, when the line is abnormal , the driver takes over the control of the train in order to stop the train in advance, but under the existing judgment method, because the driver accidentally touches the controller or the driver operates the controller in advance before the train stops, the train will not be able to follow the signal system. Predetermined grades are used for accurate benchmarking control, causing trains to run short of the standard

It can be seen that in the prior art, there is a contradiction between the early or delayed train stop control and the benchmarking control, and it is difficult to balance the two.

[0003] The existing rail train traction braking level control method (for example, the application number is 201910366860.X) mainly through redundant acquisition of signals in the train network control system, Real-time diagnosis, and logical judgment, optimize the control strategy of train traction brake level control, improve the real-time and synchronization of signal transmission, improve vehicle availability, and take advantage of the reliability and safety of centralized control of train network control system, but It did not consider how to solve the problem that the train could not be accurately controlled according to the predetermined level of the signal system due to the driver accidentally touching the controller or the driver operated the controller in advance before the train stopped. Great potential safety hazard, affecting train operation efficiency

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