A train ato fast target curve planning method and system

Abstract

The invention discloses a train ATO fast target curve planning method and system, which belong to the technical field of rail transit and are used to solve the technical problem of difficult ATO target curve planning in train running intervals with complex speed limit changes. The method includes steps: 1) Divide the train operation interval into several conventional speed limit change type sub-intervals; 2) carry out rapid target curve planning for each conventional speed limit change type sub-interval respectively, and obtain several corresponding fast target curves; 3) divide each sub-interval into corresponding The fast target curves of the trains are connected in turn to obtain the fast target curves corresponding to the entire operation interval of the train. The train ATO fast target curve planning method and system proposed by the invention have the advantages of simple operation process, easy realization, strong applicability and the like.

Description

technical field [0001] The invention mainly relates to the technical field of rail transit, in particular to a method and system for planning a rapid target curve of a train ATO. Background technique [0002] With the rapid development of rail transit, the train operation control system with ATO (Automatic Train Operation, automatic train control) control function has gradually become standard. The ATO control process is the process in which the ATO calculates the control amount according to the current state of the train to make the train speed track the target speed. Therefore, the planning of the target speed curve is the premise of realizing ATO control. When the train running line environment is complicated or the speed limit is complicated due to overrunning, it is difficult to plan the target speed curve from the starting point to the end point according to the traditional method. [0003] At present, there are mainly three kinds of target speed curves in the train ...

AI Technical Summary

Problems solved by technology

[0013] (2) Types of complex speed limit changes

[0020] The two-way recursion method means that two running curves are obtained from the starting point and the end point respectively, using forward and reverse traction calculations, and a complete target running curve is formed by finding the intersection point of the curves. This method is simple and easy to calculate, and is more convenient than direct The calculation method is more practical, but encounters such as image 3 In the case of complex speed limit changes shown, it is obviously impossible to obtain the target operating curve of the entire interval by only calculating from the two directions of the starting point and the end point.

[0021] In summary, the existing fast target curve calculation methods, whether direct calculation method or bidirectional recursive method, cannot effectively solve the problem of curve planning when there are complex speed limit changes in the operating interval

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