CN113992308A

CN113992308A - Motor train unit control system fusion framework

Info

Publication number: CN113992308A
Application number: CN202111361010.4A
Authority: CN
Inventors: 夏好广; 高枫; 张顺广; 卢宏康; 王海琦; 杨先超; 夏菲; 李洋涛; 张波; 曹宏发; 杨伟君; 蔡田; 殷振环; 张瑞芳
Original assignee: China Academy of Railway Sciences Corp Ltd CARS; Locomotive and Car Research Institute of CARS; Beijing Zongheng Electromechanical Technology Co Ltd; Tieke Aspect Tianjin Technology Development Co Ltd
Current assignee: China Academy of Railway Sciences Corp Ltd CARS; Locomotive and Car Research Institute of CARS; Beijing Zongheng Electromechanical Technology Co Ltd; Tieke Aspect Tianjin Technology Development Co Ltd
Priority date: 2021-11-17
Filing date: 2021-11-17
Publication date: 2022-01-28

Abstract

The invention provides a motor train unit control system fusion framework, which comprises: the system comprises a plurality of Ethernet train backbone gateways and a plurality of Ethernet train marshalling gateways connected with the Ethernet train backbone gateways, wherein the Ethernet train marshalling gateways are connected in series; the Ethernet vehicle marshalling gateway is divided into an end train gateway and a middle train gateway, wherein the end train gateway is arranged on a front end vehicle and a tail end vehicle, and the middle train gateway is arranged on a middle section vehicle; and each Ethernet vehicle marshalling gateway is provided with a fusion controller, and an LCU main board, a traction control main board and a brake control main board are integrated on the fusion controller. According to the method, the functions are classified and divided through the combing vehicle control function, the vehicle control framework is formed according to the three layers of the execution device, the vehicle control and the train control, the functions are intensively arranged in the vehicle control unit, the integration of the logic functions of a plurality of original control units is realized, the cross-system interaction delay is reduced, and the control accuracy is improved.

Description

Motor train unit control system fusion framework

Technical Field

The application belongs to the technical field of rail transit equipment finished vehicles, and particularly relates to a motor train unit control system fusion framework.

Background

The current train complete design is based on mature subsystem products such as network control, traction, braking, vehicle doors, air conditioners and the like, and complete train design from bottom to top is completed through proper adjustment of interfaces. In terms of configuration, the subsystems are distributed in different vehicles, each end vehicle is at least provided with a network Central Control Unit (CCU), each vehicle is at least provided with a Brake Control Unit (BCU), and each motor train is at least provided with a Traction Control Unit (TCU). The control units of all the subsystems run independently, and the functions of the whole train of motor train units are realized through the interconnection of a train network (TCMS). The control of the vehicle is often embodied in the control of a device, or several system devices.

In the current architecture, different systems belong to different technical fields and have different technical routes, and the patterns of independent development of different systems are formed for a long time, however, from the perspective of a whole vehicle, after the system division, each system needs to design hardware resources such as a special control unit and the like. Therefore, the number of control units on the train is large, data interaction needs to be carried out between the control units through a train network functionally, the topological structure of the train is complex due to the large number of control units, and the train wiring is complex due to the large number of signal acquisition and control wiring; in addition, the realization of some functions can not be realized only by a control unit in the system, and cross-system signal interaction and cross-system signal transmission are required, so that the real-time performance is reduced to a certain extent. Therefore, it is desirable to minimize repetitive control between train subsystems from the train control function level.

Disclosure of Invention

The application provides a motor train unit control system fusion framework to at least solve the problems that the current train topology structure is complex, and the train wiring is complex due to more signal acquisition and control wiring.

According to a first aspect of the present application, a motor train unit control system fusion architecture is provided, including:

the system comprises a plurality of Ethernet train backbone gateways and a plurality of Ethernet train marshalling gateways connected with the Ethernet train backbone gateways, wherein the Ethernet train marshalling gateways are connected in series; the Ethernet vehicle marshalling gateway is divided into an end train gateway and a middle train gateway, wherein the end train gateway is arranged on a front end vehicle and a tail end vehicle, and the middle train gateway is arranged on a middle section vehicle;

and each Ethernet vehicle marshalling gateway is provided with a fusion controller, and an LCU main board, a traction control main board and a brake control main board are integrated on the fusion controller.

In an embodiment, the fusion controller is further provided with a board card, and the LCU main board, the traction control main board and the brake control main board perform information interaction by transmitting data through the board card.

In an embodiment, a CCU control main board is further integrated on the fusion controller arranged on the end car gateway.

In one embodiment, a wireless transmission device and a display are connected to the terminal car gateway.

In one embodiment, the interface of the fusion controller and the Ethernet vehicle marshalling gateway is a secure data transmission interface for two-channel redundant communication.

In one embodiment, a monitoring device is connected to the fusion controller for real-time monitoring of the interior of the vehicle.

In one embodiment, the fusion controller is provided with a signal collector, and the signal collector is used for collecting train line signals and hard line signals.

In one embodiment, a communication device is further included on the converged controller.

In one embodiment, the communication equipment comprises at least two circuits with redundant design.

In an embodiment, a dual-computer hot standby redundancy architecture is adopted among the LCU motherboard, the traction control motherboard, and the brake control motherboard, and interfaces on the LCU motherboard, the traction control motherboard, and the brake control motherboard include at least two circuits with redundancy design.

Drawings

In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below, it is obvious that the drawings in the following description are only some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to the drawings without creative efforts.

Fig. 1 is a topological diagram of a fusion architecture of a motor train unit control system provided by the present application.

Fig. 2 is an internal structure diagram of a fusion controller in an embodiment of the present application.

FIG. 3 is a schematic diagram of a functional hierarchy of a motor train unit in the embodiment of the application.

Detailed Description

The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.

In recent years, with the development of embedded computer technology, a variety of computer chips with low power consumption, multiple cores and a safety architecture can meet the processing requirements of complex logics of trains, and technical support is provided for complex, diverse and intelligent application logics.

In order to solve the problems existing in the background art, the application provides a motor train unit control system fusion framework, which comprises:

In a specific embodiment, as shown in fig. 1, the multiple unit train forms the traction unit in units of a certain number of cars, for example, the 1 st to 4 th cars are the first traction units, the 5 th to 8 th cars are the second traction units, and the number of cars in each traction unit is adjustable. The dynamic configuration of the train is realized by adopting the train and a backbone network ETB between the traction units, an Ethernet train backbone gateway (ETBN) is arranged on each traction unit, a vehicle grouping Ethernet ECN is adopted in the traction unit, vehicle grouping Ethernet nodes ECNN (Ethernet vehicle grouping gateway) are arranged on the ECN, the ECNN is arranged in each carriage, and the ECNN is connected with the ETBN after being connected in series. Wherein:

BCU-brake control unit, CCU-central control unit, DCU-door control unit, ETB-train level backbone network, ETBN-train level backbone network node, ECN-vehicle marshalling Ethernet, ECNN-vehicle marshalling Ethernet node, FAS-fire alarm system, HADS-axle temperature detection device, HMI-display, HVAC-air conditioner, IOM input and output module, WTD-wireless transmission device, TCU-traction control unit and BC-charger control device.

In a specific embodiment, each ECNN is provided with a fusion controller and other control devices, as shown in fig. 2, the fusion controller is integrated with a logic control unit function (LCU motherboard), a brake control unit part function (BCU brake control motherboard), and a traction control unit part function (TCU traction control motherboard), and has related logic modules inside, so that control units such as BCU and TCU do not need to be separately provided in the vehicle cabin.

In a specific embodiment, the fusion controller is further provided with a board card, and in practical application, data can be transmitted between the control modules (main boards) on several unified items through the board card, so that the functions of reducing communication delay and improving system reliability are achieved.

In a specific embodiment, the fusion controller disposed on the end car needs to implement a Central Control Unit (CCU) logic function, a logic control unit function (LCU), a brake control unit part function (BCU), and a traction control unit part function (TCU), and therefore, the fusion controller disposed on the end car gateway needs to further have a CCU control main board for implementing the central control unit logic function.

In a specific embodiment, because the conventional LCU, CCU, TCU, BCU, etc. are disposed in different hosts, independent from each other, the independent control units cause that communication between different systems in the vehicle needs to be implemented through a large number of physical interfaces and logical relationships in software, and the occupied space is large. The cross-system interaction of signals also reduces the real-time performance of control. The LCU, the CCU, the TCU and the BCU control main board are integrated on the fusion controller to form the fusion controller, so that a communication transmission function is realized without a connecting line between devices, transmission delay can be reduced, and data transmission quality is improved. In practical application, the number of physical interfaces is reduced, and resources are multiplexed. The quiet of the control mainboard on the same case can transmit data through the board card, thereby reducing the communication delay and improving the reliability of the system. And the control mainboard is integrated into one device, so that the space occupied by the device is saved, and the resource utilization rate of the interface is improved.

In an embodiment, each control mainboard in the fusion controller adopts a safe computer architecture with a diagnosis function and a dual-computer hot standby redundancy architecture, so that the safety integrity of the hardware function of the control mainboard is guaranteed. When any one of the main boards with the redundant design breaks down, the traction or brake control function of the vehicle is not influenced, and the safety and the reliability of the train communication architecture are guaranteed. Information transmission between each control main board and a train network interface in the fusion controller adopts a safety data transmission mechanism and a double-channel redundancy mechanism. When a dual-channel redundancy communication mechanism is adopted, two communication network ports are respectively connected to different switches, and the two network ports work simultaneously, so that the redundancy reliability of key equipment is ensured.

In another embodiment of the present application, a health management main board (PHM) is further integrated in the fusion controller, the PHM module of the end car is responsible for the budget of the train-level PHM function, and the PHM module of the intermediate car is responsible for the monitoring and operation in the vehicle.

To support the solution provided in the present application, a specific example is listed below:

firstly, a new train control architecture is constructed, a motor train unit train communication network topology architecture based on the Ethernet is adopted for the whole train, the Ethernet motor train unit train network architecture is adopted for the whole train, a fusion controller is equipped, and a core main board in the fusion controller is arranged in a redundant mode, so that normal and reliable communication of the motor train unit train network is guaranteed.

The motor train unit train uses a certain number of carriages as a unit to form a traction unit, for example, the 1 st to 4 th carriages are used as a first traction unit, the 5 th to 8 th carriages are used as a second traction unit, and the number of carriages in the unit can be changed. Train level backbone network ETB is adopted between the traction units to realize dynamic configuration of the train. Each traction unit is provided with a train-level backbone network node ETBN. The vehicle marshalling Ethernet ECN is adopted in the traction unit, vehicle marshalling Ethernet nodes ECNN are arranged on the vehicle marshalling Ethernet ECN, and the ECNNs are connected in series and then connected with a train-level backbone network node ETBN.

The control architecture is configured on a functional basis, with the types forming a set, bounded by secure and non-secure functions. In order to solve the technical problems in the prior art, function combing is firstly carried out according to the control requirements of the trains, the functions of the motor train unit are classified according to several important principles on the basis of the functions which need to be met by a certain train, and the functions of the motor train unit are divided into three levels, namely, a train level, a vehicle level and an execution device as shown in figure 3. The train level is a function of managing the data of the comprehensive train, such as processing a set value of train braking force, and managing electric-air composite braking at the train level according to the braking requirement of the train. Such as communication management and communication diagnosis at the train level. The vehicle level is a function which can be completed only by integrating vehicle data, such as vehicle anti-skid protection (WSP), and the final function is completed by integrating related data in the vehicle, which is not very relevant to other vehicles. The executing device is mainly responsible for participating in final execution and mainly comprises necessary sensors, control valves and the like, the executing device has a certain communication interface and necessary logic control because the executing device needs to receive instructions, the speed and real-time performance of data are higher in some control, and the fast feedback and closed-loop logic operation is reserved in the executing device, such as controlling a traction converter, controlling the rotating speed and output torque of a motor, controlling an auxiliary converter, generating medium-voltage output and the like.

The vehicle marshalling architecture Ethernet nodes ECNN are arranged in each carriage, and each control device is connected with the interior of each carriage by taking a single vehicle marshalling Ethernet node ECNN as a center. A vehicle fusion controller (VCU) and other control devices are provided in each vehicle cabin.

LCU, CCU, TCU, BCU integrated set, form and fuse the controller, in this way, then no longer need the line between the equipment to realize data transmission, can reduce transmission delay, improve data transmission quality. In practical application, the number of physical interfaces is reduced, and resources are multiplexed. Data can be transmitted between the control modules on the same case through the board card, communication delay is reduced, and system reliability is improved. Meanwhile, the device is integrated into one device, so that the space occupied by the device is saved, and the resource utilization rate of the interface is improved.

The fusion controller has train line and relevant hard wire signal acquisition function, specifically includes: emergency EB, UB, loop, VCB close or open signal, roof disconnect switch signal, emergency traction, traction position train line, brake position train line, head, tail train signal, coupling signal, ATP7 level train line, brake command train line, air compressor over temperature, air compressor output control, etc.

The function control module of the fusion controller at least adopts a dual-computer hot standby redundancy architecture, the interface module comprises at least 2 circuits with redundancy design, the communication module comprises at least 2 circuits with redundancy design, and the power supply unit can comprise at least two power supply modules. Therefore, at least two groups of architectures with completely identical and interchangeable functions are included, so that the functions of input acquisition redundancy, output driving redundancy, logic control redundancy, power supply redundancy, communication redundancy and the like can be realized.

According to the method, the functions are classified and divided through the combing vehicle control function, the vehicle control framework is formed according to the three layers of the execution device, the vehicle control and the train control, the functions are intensively arranged in the vehicle control unit, the integration of the logic functions of a plurality of original control units is realized, the cross-system interaction delay is reduced, and the control accuracy is improved.

The embodiments in the present specification are described in a progressive manner, and the same and similar parts among the embodiments are referred to each other, and each embodiment focuses on the differences from the other embodiments. In particular, for the hardware + program type embodiment, the description is simple, and the relevant points can be referred to the partial description of the embodiment. Although embodiments herein provide for the steps of operations as described in the embodiments, more or fewer steps of operations may be included based on conventional or non-inventive means. The order of steps recited in the embodiments is merely one manner of performing the steps in a multitude of orders and does not represent the only order of execution. When an actual apparatus or end product executes, it may execute in the order shown in the embodiments or figures or in parallel (e.g., parallel processor or multi-thread processing environment, or even a distributed data processing environment). The terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, article, or apparatus. Without further limitation, the presence of additional identical or equivalent elements in a process, product or apparatus that comprises the recited elements is not excluded. For convenience of description, the above devices are described as being divided into various modules by functions, and are described separately. Of course, in implementing the embodiments of the present description, the functions of each module may be implemented in one or more software and/or hardware, or a module implementing the same function may be implemented by a combination of multiple sub-modules or sub-units, and the like. The above-described embodiments of the apparatus are merely illustrative, and for example, the division of the units is only one logical division, and other divisions may be realized in practice, for example, a plurality of units or components may be combined or integrated into another system, or some features may be omitted, or not executed. In addition, the shown or discussed mutual coupling or direct coupling or communication connection may be an indirect coupling or communication connection through some interfaces, devices or units, and may be in an electrical, mechanical or other form.

In the description herein, references to the description of the term "one embodiment," "some embodiments," "an example," "a specific example," or "some examples," etc., mean that a particular feature, structure, material, or characteristic described in connection with the embodiment or example is included in at least one embodiment or example of an embodiment of the specification. In this specification, the schematic representations of the terms used above are not necessarily intended to refer to the same embodiment or example. Furthermore, various embodiments or examples and features of different embodiments or examples described in this specification can be combined and combined by one skilled in the art without contradiction. The above description is only an example of the embodiments of the present disclosure, and is not intended to limit the embodiments of the present disclosure. Various modifications and variations to the embodiments described herein will be apparent to those skilled in the art. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the embodiments of the present specification should be included in the scope of the claims of the embodiments of the present specification.

Claims

1. A motor train unit control system fusion architecture is characterized by comprising:

2. The motor train unit control system fusion architecture of claim 1, wherein a board card is further arranged on the fusion controller, and the LCU main board, the traction control main board and the brake control main board perform information interaction by transmitting data through the board card.

3. The motor train unit control system fusion architecture of claim 1, wherein a CCU control main board is further integrated on the fusion controller arranged on the end train gateway.

4. The motor train unit control system fusion architecture of claim 1, wherein a wireless transmission device and a display are connected to the end train gateway.

5. The motor train unit control system fusion architecture of claim 1, wherein an interface of the fusion controller with the ethernet vehicle grouping gateway is a secure data transmission interface for two-channel redundant communication.

6. The fusion architecture of multiple unit control systems as claimed in claim 1, wherein a monitoring device is connected to the fusion controller for real-time monitoring of objects/states inside the vehicle.

7. The motor train unit control system fusion architecture of claim 1, wherein a signal collector is arranged on the fusion controller, and the signal collector is used for collecting train wireless signals and hard-line signals.

8. The motor train unit control system fusion architecture of claim 1, further comprising a communication device on the fusion controller.

9. The motor train unit control system fusion architecture of claim 8, wherein the communication device comprises at least two redundant circuits.

10. The motor train unit control system fusion architecture of claim 9, wherein a dual-locomotive hot standby redundancy architecture is adopted among the LCU motherboard, the traction control motherboard, and the brake control motherboard, and interfaces on the LCU motherboard, the traction control motherboard, and the brake control motherboard include at least two circuits with redundant design.