Looking for breakthrough ideas for innovation challenges? Try Patsnap Eureka!

Method for automatically adjusting stopping accuracy of automatic train operation

A technology for automatic driving and parking accuracy of trains, applied in the field of rail transit, which can solve problems such as differences in braking performance, differences in braking performance of different vehicles, and performance changes, so as to save debugging time and labor costs and solve performance changes.

Active Publication Date: 2019-10-08
SHANGHAI ELECTRIC THALES TRANSPORTATION AUTOMATION SYST CO LTD
View PDF5 Cites 24 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] The purpose of the present invention is to provide a method for automatically adjusting the parking accuracy of train automatic driving, which solves the problem of the difference in braking performance between electric braking and air braking, and at the same time solves the difference in braking performance of different vehicles and different time periods of the same vehicle The problem of internal performance changes

Method used

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
View more

Image

Smart Image Click on the blue labels to locate them in the text.
Viewing Examples
Smart Image
  • Method for automatically adjusting stopping accuracy of automatic train operation
  • Method for automatically adjusting stopping accuracy of automatic train operation
  • Method for automatically adjusting stopping accuracy of automatic train operation

Examples

Experimental program
Comparison scheme
Effect test

Embodiment Construction

[0035] The present invention will be further described below in conjunction with accompanying drawing.

[0036] At this stage, there is a certain error in the positioning accuracy of the rail transit signaling system. In order to eliminate the error, a proximity disc is generally installed at the parking point to assist in positioning. Ideally, the ATO stop benchmarking model is divided into the following stages (as attached image 3 shown):

[0037] 1) Deceleration with fixed braking rate (braking phase).

[0038] 2) Braking to coasting (removal of the braking phase).

[0039] 3) Coasting, waiting for detection of proximity to the disk (coasting phase).

[0040] 4) Apply the maximum brake to stop (braking phase) after detecting the proximity to the disk.

[0041] Velocity v in the idling phase 0 It directly affects the stopping accuracy. The length of the approach disc is 1 meter. According to the characteristics of the vehicle braking delay, it is necessary to select an...

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More

PUM

No PUM Login to View More

Abstract

The invention discloses a method for automatically adjusting stopping accuracy of automatic train operation. According to the method, a parameter delta v is introduced into a speed correcting calculation formula, so that the influence of large differences between the performance of train electric-braking and the performance of air braking on the stopping precision of ATO is avoided; and meanwhile,through a method of combining historical station stopping accuracy data with a current control policy state, the correction value of the parameter delta v can be automatically adjusted, thus solvingthe problems that different trains have differences in braking performance and changes of performance occur to the same train during different periods of time.

Description

technical field [0001] The invention relates to the technical field of rail transit, in particular to a method for automatically adjusting the parking accuracy of train automatic driving. Background technique [0002] In the urban rail transit system, the automatic train driving (ATO) is an important subsystem of the automatic train control system (ATC), which can simulate the task of driving the train, and realize the traction, braking and automatic return of the train by using ground information Waiting for operation control, so that the train is always in the best running state, improving the comfort of passengers and the punctuality of the train, and saving energy. In addition, it also provides functions such as fixed-point parking, door control and feedback of train positioning information to the station. ATO reduces the cost of train operation, increases operational flexibility, and makes intensive departure possible. It is a reliable technical guarantee for urban rai...

Claims

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More

Application Information

Patent Timeline
no application Login to View More
Patent Type & Authority Applications(China)
IPC IPC(8): B61L15/00B60T8/32
CPCB60T8/3235B61L15/0072
Inventor 程宏张建国
Owner SHANGHAI ELECTRIC THALES TRANSPORTATION AUTOMATION SYST CO LTD
Who we serve
  • R&D Engineer
  • R&D Manager
  • IP Professional
Why Patsnap Eureka
  • Industry Leading Data Capabilities
  • Powerful AI technology
  • Patent DNA Extraction
Social media
Patsnap Eureka Blog
Learn More
PatSnap group products

Browse by: Latest US Patents, China's latest patents, Technical Efficacy Thesaurus, Application Domain, Technology Topic, Popular Technical Reports.

© 2024 PatSnap. All rights reserved.Legal|Privacy policy|Modern Slavery Act Transparency Statement|Sitemap|About US| Contact US: help@patsnap.com