Implementation method for independent multimode train control system based on trackside platform

Patent metadata

Field	Value
Publication number	US-12263873-B2
Application number	US-202218013261-A
Country	US
Kind code	B2
Filing date	Jan 6, 2022
Priority date	Mar 17, 2021
Publication date	Apr 1, 2025
Grant date	Apr 1, 2025

Abstract

An implementation method for an independent multimode train control system based on a trackside platform is provided. According to the implementation method, a trackside train control system and an interlocking system are provided independently to meet requirements of hybrid operation of trains having different systems; and at the same time, during operation of a train in a moving block mode, once a trackside control system fails or an on-board system fails, the multimode train control system can ensure that the train is degraded automatically and operates according to a degraded mode.

First claim

What is claimed is:

1. An implementation method for an independent multimode train control system based on a trackside platform, wherein a trackside train control system and an interlocking system are provided independently in the method to meet requirements of a hybrid operation of trains having different systems; and at the same time, during an operation of a train in a moving block mode, once a trackside control system fails or a train on-board system fails, the multimode train control system can ensure that the train is degraded automatically and operates according to a degraded mode,
wherein the implementation method comprises: a process of establishing a movement authority; a process of releasing the movement authority; and a process of manually releasing the movement authority,
wherein the process of establishing the movement authority specifically comprises:
a1) applying a movement authority for a train by the dispatching supervision system according to an operation plan, and sending a movement authority applying for a current portion of line to the trackside control system;
a2) in case of the movement authority applied for the train, checking, by the trackside control system, whether a movement authority condition is satisfied within a range of the applied movement authority, if the movement authority condition is satisfied with respect to all or a portion of the line for which the movement authority is applied, checking whether the current portion of line for which the movement authority is applied includes a turnout, and if the movement authority condition is not satisfied with respect to all regions or a portion of the line within the range of the applied movement authority, activating, by the trackside control system, a movement authority applied state for all or a portion of the line that does not satisfy the condition, and continuously checking the movement authority condition within the line;
a3) if the movement authority condition is satisfied with respect to all or a portion of the line for which the movement authority is applied and the current portion of the line includes a turnout, checking and determining, by the trackside control system, whether a turnout position is a desired position of the movement authority applied, if not, outputting a turnout operating command to the interlocking system, which in turn outputs, upon receipt, the turnout operating command to a trackside turnout switch machine, acquires a turnout position state from a trackside signal device in real time, and sends the turnout position state to the dispatching supervision system, and if so, sending, by the trackside control system, an indication of locking all turnouts in the portion of line to the interlocking system, which in turn sends a turnout locked state to the dispatching supervision system;
a4) if the movement authority condition is satisfied with respect to all or a portion of the line for which the movement authority is applied, checking, by the trackside control system, whether an obstacle point exists in front of the train within a destination line range in a current train operation plan, regardless of whether the turnout is included within the range of the line;
a5) if the trackside control system checks an obstacle point existing in front of the train within the destination line range in the current train operation plan, detecting, in real time, whether the front obstacle point is cleared, and updating and establishing the movement authority from the train to the obstacle point;
a6) after the interlocking system locks the turnout, activating, by the interlocking system, a turnout movement authority locked state, which can be unlocked only by the trackside control system, checking, by the trackside control system, whether a train route in the same direction as the movement authority is included within the range of the movement authority, if so, sending a route establishment command to the interlocking system, checking, by the interlocking system, whether a route condition is satisfied, if satisfied, locking a route and clearing a signal, and if not satisfied, maintaining a current state of the route;
a7) if the trackside control system checks that an obstacle point in front of the train within the destination line range in the current train operation plan is removed, establishing a movement authority from the train to the destination of the operation plan, and sending a movement authority state to the dispatching supervision system;
a8) operating the train in the moving block mode to the end point of the currently established movement authority according to the range of the movement authority;
a9) if the interlocking system determines that the route is locked, outputting a signal clearing command to a trackside signal machine, which sends, after receiving a signal cleared state, the signal cleared state to the dispatching supervision system; and
a10), operating the train in the degraded mode according to the clearing signal and according to signal display.

2. The implementation method for the independent multimode train control system based on the trackside platform according to claim 1 , wherein when receiving an application for the movement authority from a dispatching supervision system for a specified operating train, the trackside control system determines a direction of the movement authority according to a destination and a path in the application for the movement authority, and calculates a starting point of the movement authority on a basis of a safe rear position of the train, and an end point of the movement authority depends on whether an obstacle point exists on the whole path applied for the movement authority.

3. The implementation method for the independent multimode train control system based on the trackside platform according to claim 2 , wherein if no obstacle point exists on the whole path applied for the movement authority, the end point of the movement authority is used to define a farthest distance for the movement authority of the train, and if an obstacle point exists on the path applied for the movement authority, the end point of the movement authority will be extended or withdrawn to the obstacle point; and between the obstacle point and the destination of the applied movement authority, the trackside control system will activate the movement authority to an applied state.

4. The implementation method for the independent multimode train control system based on the trackside platform according to claim 3 , wherein if the obstacle point is a turnout, which is not located at a desired position of the movement authority and is in a region with a movement authority applied state, and in the event that other conditions of a permissible action of the turnout are satisfied, the trackside control system outputs a turnout operating command to the interlocking system, and once a position of the turnout reaches the desired position of the movement authority, the trackside control system will send a turnout locking command to the interlocking system; and
if the trackside control system receives a state that the turnout is a locked by the movement authority, and no obstacle point exists between the train and a section in which the turnout is located, a movement authority for the section of the turnout is activated for the train.

5. The implementation method for the independent multimode train control system based on the trackside platform according to claim 3 , wherein if a range of the movement authority covers a segment of train route in the same direction, the trackside control system sends, to the interlocking system, a train route establishment command, and in the event that relevant conditions of the route are satisfied, the interlocking system locks the route and clears a signal; and
in the event

Assignees

• Casco Signal Ltd

Inventors

• Pan Liang
• Wang Xiaoyong
• Xing Yanyang
• Xu Haigui
• Liu Huaxiang
• Hong Lingjiao
• Chen Shaowen

Classifications

• B61L27/30 Primary

  Trackside multiple control systems, e.g. switch-over between different systems · CPC title

• B61L2027/204

  using Communication-based Train Control [CBTC] · CPC title

• B61L27/20

  Trackside control of safe travel of vehicle or train, e.g. braking curve calculation · CPC title

• B61L27/57

  for vehicles or trains, e.g. trackside supervision of train conditions · CPC title

• B61L27/53

  for trackside elements or systems, e.g. trackside supervision of trackside control system conditions · CPC title