A method, system and device for improving train parking accuracy

Abstract

The invention discloses a method for improving train parking accuracy. The method includes the steps that a total brake target value required by a target train section is sent to the target train section, wherein the target train section is any train section in all the train sections of a train; and when the target train section is in an idling stage, a first brake target value used for controlling brake pressure in a brake cylinder of the target train section to ascend is provided for the target train section, and the first brake target value is larger than the total brake target value. By the application of the provided method, the parking accuracy of the train can be improved. The invention further provides a system and device for improving the train parking accuracy, and the system anddevice have corresponding technical effects.

Description

technical field [0001] The invention relates to the technical field of train control, in particular to a method, system and equipment for improving train parking precision. Background technique [0002] Train ATO (Automatic Train Operation, automatic train driving system) mode is the current mainstream mode and development trend of trains. The ATO mode has many advantages such as improving train operation efficiency, shortening train operation intervals, and reducing driver labor intensity. The ATO mode has higher requirements on the response speed of the braking system. If the response time of the braking system is slow, it will affect the accuracy of the train's benchmarking stop. [0003] In the prior art, according to different braking levels, a corresponding braking target value is determined, so that the braking pressure in the brake cylinder gradually rises to the magnitude of the braking target value. And because the braking level of the urban rail train is generall...

AI Technical Summary

Problems solved by technology

[0004] Therefore, due to the small braking target value, it will lead to a longer idle time and a higher degree of discretization

In the existing technology, the idling time during braking is usually between 0.5s-1.5s, and the degree of discretization has reached 1s. Calculated according to the electro-hydraulic conversion of the maglev train at 12km / h, the idling time of 1s is uncertain This will result in an accuracy of ±167cm for the instantaneous impact of benchmark parking, which seriously exceeds the ±30cm door-to-door accuracy required by the ATO mode

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