Locomotive wireless multi-heading remote distributed power traction operation control system, and multi-heading locomotive

Patent metadata

Field	Value
Publication number	US-12466274-B2
Application number	US-202218577240-A
Country	US
Kind code	B2
Filing date	Aug 1, 2022
Priority date	Sep 3, 2021
Publication date	Nov 11, 2025
Grant date	Nov 11, 2025

Abstract

A locomotive wireless multi-heading remote distributed power traction operation control system. A set of differential multi-heading control unit (8) is added to a train control and management system of an original locomotive, and is combined and fused with a train control and management system (21), a brake control unit (24), a train safety monitoring device (20), a locomotive logic control unit (23), and a locomotive third-party device (25) to implement wireless multi-heading distributed power traction control operation of locomotives in a heavy haul combined train, and adapt to train multi-heading traction control operation of differential locomotives of a heavy haul combined train or multi-heading operation of different railway locomotives. Also provided is a multi-heading locomotive.

First claim

The invention claimed is:

1 . A locomotive wireless multi-heading remote distributed power traction operation control system, comprising at least one differential multi-heading control unit disposed on each locomotive, wherein differential multi-heading control units on a plurality of locomotives form a two-stage architecture, wherein the first stage is a cloud differential locomotive wireless multi-heading management stage, at which the differential multi-heading control units of locomotives constitute a virtual differential wireless multi-heading management system, the differential multi-heading control units are initialized after the locomotives are marshaled, a topology table of the differential multi-heading control units is built, and the differential multi-heading control unit of a master locomotive has a management authority and manages each differential multi-heading control unit according to the topology table; and the second stage is a differential locomotive wireless multi-heading control stage, at which the wireless multi-heading control unit of each locomotive obtains control information of the locomotive, state feedback information of the locomotive, operation line data information, and wireless communication information, and the differential multi-heading control unit of the master locomotive processes the control information of the locomotive, the state feedback information of the locomotive, the operation line data information, and the wireless communication information, performs cooperative control on a static logic and a dynamic sequential logic of the locomotives, and uses a state of a state machine as a triggering condition to transfer logic control; the differential multi-heading control unit of each locomotive allocates and adjusts locomotive traction characteristics in real time through a locomotive control system TCMS and an electrical interface by using a set locomotive traction characteristic curve, and corrects coefficients according to a speed set by a driver or a magnitude of traction/brake force to reduce longitudinal force of a train; and the differential multi-heading control unit of the master locomotive exchanges information with the differential multi-heading control units of each slave locomotive.

2 . The locomotive wireless multi-heading remote distributed power traction operation control system according to claim 1 , wherein the differential locomotive wireless multi-heading control stage communicates with the locomotive control system TCMS for the multi-heading locomotives; and the locomotive control system TCMS completes input/output and control of a locomotive electrical system by receiving instructions from the differential locomotive wireless multi-heading control stage.

3 . The locomotive wireless multi-heading remote distributed power traction operation control system according to claim 1 , wherein the differential locomotive wireless multi-heading control stage exchanges information with the locomotive control system TCMS through a vehicle wired communication network.

4 . The locomotive wireless multi-heading remote distributed power traction operation control system according to claim 1 , wherein each locomotive is provided with two differential multi-heading control units.

5 . The locomotive wireless multi-heading remote distributed power traction operation control system according to claim 1 , wherein the cloud differential locomotive wireless multi-heading management stage comprises:
a DMU networking and management module, configured to implement real-time and periodic exchange of air data between a plurality of locomotives; a differentially adaptive cloud management module, configured to form a group topology table for control applications between the locomotives, translate control and feedback information into a unified information format at a cloud for the differentiation of the locomotives, check whether the traction characteristics of the locomotives meet traction requirements of a heavy haul train, check whether the distribution of the locomotives in the train meets dynamics performance requirements of the train, and match weights of traction/brake characteristics according to the differentiation of the locomotives; a wireless link management module, configured to implement real-time communication between the remote locomotives, form communication link management for group control applications between the locomotives, perform data error verification, and perform conversion and control of a link management authority; and a safe transmission management module, configured to transmit data safely via an optimized locomotive communication protocol encrypting data frames during encoding.

6 . The locomotive wireless multi-heading remote distributed power traction operation control system according to claim 5 , wherein the differential locomotive wireless multi-heading control stage comprises:
a DMU calculation and cooperative control module, configured to implement asynchronous cooperative traction operation control under remote multi-heading of the locomotives; a wireless communication data transmission module, configured to complete data exchange with the wireless link management module and communicate with a redundancy management module; the redundancy management module, configured to implement authority management of two differential multi-heading control units in a locomotive, wherein the differential multi-heading control unit that obtains a master control authority has an external output function, while the other differential multi-heading control unit is automatically switched to a redundancy module; both the two differential multi-heading control units have information input and calculation functions; the redundancy management module is further configured to monitor the master differential multi-heading control unit; and when the master differential multi-heading control unit is abnormal, the master differential multi-heading control unit automatically loses a master control token, and the redundant differential multi-heading control unit automatically obtains the token and is switched to a master control module; a locomotive differential control module, configured to implement locomotive control for different types of locomotives and different control modes, and communicate with the DMU calculation and cooperative control module and an electrical driving control module; a traction/brake characteristic control module, configured to match weight coefficients of traction/brake characteristics according to different locomotive models, distribution positions of locomotives in different trains, different line conditions, locomotive operating conditions, and the differentiation of the locomotives, adjust the traction/brake characteristics of each locomotive according to instructions of a driver controller of the master locomotive, and calculate and control the traction/brake characteristics of the locomotives in real time; a fault safety guide control module, configured to implement fault diagnosis and safety guide for locomotive multi-heading, and communicate with the DMU calculation and cooperative control module and the electrical driving control module; the electrical driving control module, configured to implement signal driving of the locomotive control system TCMS, a BCU brake control unit, and an LCU logic control unit, and communicate with the redundancy management module; and a communication interface module, configured to communicate with the TCMS system, the BCU brake control unit, the LCU logic control unit, an LKJ train operation safety monitoring apparatus, and third-party devices, and communicate with the DMU calculation and cooperative control module and the electrical driving control module.

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Assignees

• Univ Central South
• National Railway Administration Equipment Tech Center
• Science And Tech Research Institute Of Daqin Railway Co Ltd
• Changsha Nanrui Rail Transp Electric Equipment Co Ltd

Inventors

• Li Wei
• Wei Xiang
• Yu Yongsheng
• Wang Songxu
• Liu Zhijian
• Yao Meiqi
• Wang Kai
• Zhang Wenlu
• Li Ting

Classifications

• B61L15/0072

  On-board train data handling · CPC title

• B61L15/0063 Primary

  Multiple on-board control systems, e.g. "2 out of 3"-systems · CPC title

• B60L3/0084

  relating to control modules · CPC title

• B60L15/36

  with automatic control superimposed, e.g. to prevent excessive motor current · CPC title

• B61L15/0081

  On-board diagnosis or maintenance · CPC title