Title:
ATO ACCURATE STOPPING CONTROL METHOD BASED ON ADAPTIVE ADJUSTMENT
Document Type and Number:
WIPO Patent Application WO/2024/031856
Kind Code:
A1
Abstract:
An ATO accurate stopping control method based on adaptive adjustment. In this method, statistical learning is performed on the basis of historical stop information, so as to adaptively infer a stopping point offset. The method comprises: S1, monitoring speed following performance of a train during each stop process, and determining whether each stop process of the train meets the conditions for being collected into stop statistics; S2, updating, to a stop array queue, the result of stop processes which meet the conditions for being collected into the stop statistics, and using n stops as a learning cycle to calculate statistical features of every n stop results; S3, according to the statistical feature of every n stop results, which is obtained by means of calculation in S2, adaptively calculating a stopping point offset; and S4, evaluating each stop result of the train and stop results in each learning cycle, if set threshold values are exceeded, clearing existing stopping point offsets, and restarting a new round of learning process. Two prerequisites for the application involve: firstly, the speed following performance in an electric braking stage is good; and secondly, an air braking process has the characteristics of randomness and statistical stableness. In this way, the average stop accuracy in terms of statistical significance can be improved, and the high-accuracy stopping requirements of the whole train formation is realized; moreover, train performance and route conditions can be evaluated in a timely and appropriate manner, such that complex and varied real-time operation task requirements are satisfied.
Inventors:
GU LIZHONG (CN)
LV XINJUN (CN)
WANG WEIYANG (CN)
XIONG BO (CN)
SONG JIAHUA (CN)
WANG JUN (CN)
LV XINJUN (CN)
WANG WEIYANG (CN)
XIONG BO (CN)
SONG JIAHUA (CN)
WANG JUN (CN)
Application Number:
PCT/CN2022/130912
Publication Date:
February 15, 2024
Filing Date:
November 09, 2022
Export Citation:
Assignee:
CASCO SIGNAL LTD (CN)
International Classes:
B61L23/14; B60T8/32
Foreign References:
| CN112158233A | 2021-01-01 | |||
| CN107585180A | 2018-01-16 | |||
| CN109278806A | 2019-01-29 | |||
| CN111824093A | 2020-10-27 | |||
| CN112046557A | 2020-12-08 | |||
| CN112339800A | 2021-02-09 | |||
| JP2001045616A | 2001-02-16 | |||
| US20190283721A1 | 2019-09-19 |
Attorney, Agent or Firm:
SUNSHINE INTELLECTUAL PROPERTY LAW FIRM (CN)
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