Motor train unit auxiliary driving system

Abstract

The utility model discloses a motor train unit auxiliary driving system, and relates to the technical field of motor train units. Comprising a board card mounting frame, anti-seismic strips mounted at the top and / or the bottom of the board card mounting frame, a back plate, and a digital quantity input board card, a digital quantity output board card, an exchange board card, a central processing board card, a communication board card, an auxiliary driving calculation board card, a data recording board card and a power board card group which are arranged on the back plate, each board card comprises a first mounting hole, the board card mounting bracket comprises a second mounting hole, each board card is fixed on the board card mounting bracket through a fastener, and the backboard comprises a backboard bus and a backboard connector connected with each board card. According to the motor train unit auxiliary driving system, the modularized design is adopted, the whole motor train unit auxiliary driving system is integrated on the board card mounting frame in a board card mode, and the problem that in the prior art, an existing motor train unit auxiliary driving system is not high in integration degree is solved.

Description

Technical Field

[0001] This application relates to the field of high-speed train technology, and in particular to a high-speed train auxiliary driving system. Background Technology

[0002] The auxiliary driving system of a high-speed train is an important component. This system plays a vital role in improving driving safety, reducing driver workload, increasing train operating efficiency, quickly handling malfunctions, and ensuring the train's power supply.

[0003] However, the integration level of known EMU (Electric Multiple Unit) auxiliary driving systems is not high. Specific reasons include: EMUs involve many key and supporting technologies, which are complex and diverse, making the integration of these technologies into a unified EMU auxiliary driving system a significant challenge; the various subsystems of an EMU need to define reasonable interface relationships, and the complexity of these interface relationships further increases the difficulty of integrating the EMU auxiliary driving system; EMUs have basic performance requirements in traction, braking, vehicle dynamics, train aerodynamics, comfort, and safety, and to meet these high-performance requirements, the auxiliary driving system requires extensive parameter optimization and process performance adjustments during integration, resulting in a large workload. Utility Model Content

[0004] In view of the above problems, this application provides a high-speed train auxiliary driving system to solve the problem of low integration in existing high-speed train auxiliary driving systems. The specific solution is as follows:

[0005] The first aspect of this application provides an auxiliary driving system for high-speed trains, comprising:

[0006] Board mounting bracket, anti-vibration strip, backplate, and the train digital input board, digital output board, switching board, central processing board, communication board, auxiliary driving calculation board, data recording board and power board group set on the backplate;

[0007] Each board on the backplate includes a first mounting hole, and the board mounting bracket includes a second mounting hole corresponding to the first mounting hole; the shape of the second mounting hole includes a slot or a circle, and each board is fixed to the board mounting bracket by fasteners after aligning the first mounting hole and the second mounting hole; the board mounting bracket is provided with a third mounting hole for fixing the board mounting bracket in the target position;

[0008] The backplane includes a backplane bus and backplane connectors corresponding to each board. The backplane connectors are connected to each board. Digital input boards, digital output boards, switching boards, central processing boards, communication boards, driver assistance computing boards, and data recording boards are all connected to the backplane bus.

[0009] The anti-vibration strips are installed on the top and / or bottom of the board mounting bracket.

[0010] In one possible implementation, the various boards are arranged on the backplane in the following order: digital input board, digital output board, switching board, central processing board, communication board, driver assistance computing board, data logging board, and power supply board.

[0011] In one possible implementation, mounting slots are symmetrically provided on the top and / or bottom of the board mounting bracket.

[0012] The seismic strips are installed in the mounting grooves, and the installation direction of the seismic strips is the extension direction of each plate and the arrangement direction of each plate.

[0013] In one possible implementation, the backplane bus is a heterogeneous redundant structure, including a CAN bus and a PCIe bus.

[0014] In one possible implementation, the power board group has a redundant structure, including a first power board and a second power board.

[0015] In one possible implementation, the front panel of the data logging card includes an LCD screen.

[0016] In one possible implementation, a fan is also included;

[0017] The fan is mounted at the bottom of the board mounting bracket and connected to the central processing board; the fan's airflow direction is perpendicular to the arrangement direction of each board.

[0018] In one possible implementation, the driver assistance computing board includes a high-speed Ethernet interface;

[0019] The driver assistance computing board uses a high-speed Ethernet interface to connect to the CAN bus and PCIe bus, and communicates with the central processing board and data recording board through the CAN bus and PCIe bus.

[0020] In one possible implementation, the communication board is 3 inches high;

[0021] The front panel of the communication board includes three Ethernet interfaces, two of which are Ethernet connection interfaces and one is a maintenance interface.

[0022] In one possible implementation, both the digital input board and the digital output board include a communication module, a main chip module, a power supply module, and a front-end circuit module.

[0023] The EMU auxiliary driving system provided in this application, utilizing the above technical solution, includes a board mounting bracket, anti-vibration strips mounted on the top and / or bottom of the board mounting bracket, a backplate, and digital input boards, digital output boards, switching boards, central processing boards, communication boards, auxiliary driving calculation boards, data recording boards, and power supply boards mounted on the backplate. Each of the aforementioned boards includes a first mounting hole, and the board mounting bracket includes a second mounting hole. Each board is fixed to the board mounting bracket by fasteners. The backplate includes a backplate bus and backplate connectors that connect to each board. This application adopts a modular design, integrating the entire EMU auxiliary driving system into the board mounting bracket in the form of boards, thus solving the problem of low integration in existing EMU auxiliary driving systems. Attached Figure Description

[0024] The above and other features, advantages, and aspects of the embodiments of this disclosure will become more apparent from the accompanying drawings and the following detailed description. Throughout the drawings, the same or similar reference numerals denote the same or similar elements. It should be understood that the drawings are schematic, and the originals and elements are not necessarily drawn to scale.

[0025] Figure 1 This application provides a structural diagram of the auxiliary driving system for high-speed trains.

[0026] Figure 2 A top view example of the auxiliary driving system for high-speed trains provided in this application;

[0027] Figure 3 A side view example of the auxiliary driving system for high-speed trains provided in this application;

[0028] Figure 4 This is a schematic diagram of the system architecture of the EMU auxiliary driving system provided in this application.

[0029] Figure label:

[0030] 1-Board mounting bracket; 2-Back panel; 3-Digital input board; 4-Digital output board; 5-Switching board; 6-Central processing board; 7-Communication board; 8-Assisted driving calculation board; 9-Data logging board; 10-Power supply board group; 11-First mounting hole; 12-Third mounting hole; 13-Second mounting hole; 14-Anti-vibration strip. Detailed Implementation

[0031] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. In the description of the present utility model, it should be understood that the terms "upper," "lower," "front," "rear," "left," "right," "top," "bottom," "inner," and "outer," etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings, and are only for the convenience of describing the present utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of the present utility model. For those skilled in the art, the specific meaning of the above terms in the present utility model can be understood according to the specific circumstances. Multiple technical solutions in the same embodiment, as well as multiple technical solutions in different embodiments, can be arranged and combined to form new technical solutions that do not contradict or conflict, all of which are within the scope of protection claimed by the present utility model.

[0032] The integration level of existing EMU auxiliary driving systems is not high. To solve the above problem, this application provides an EMU auxiliary driving system. The system adopts a modular design, which divides the system's functions into various functional boards. The entire system is integrated into the board mounting frame in the form of functional boards, thereby solving the problem of low integration level of existing EMU auxiliary driving systems.

[0033] Optional, see Figure 1 The structural diagram of the auxiliary driving system for high-speed trains provided in this application.

[0034] like Figure 1 As shown, the EMU auxiliary driving system includes a board mounting bracket 1, a back plate 2, and digital input boards 3, digital output boards 4, switching boards 5, central processing boards 6, communication boards 7, auxiliary driving calculation boards 8, data recording boards 9, and power supply boards 10 mounted on the back plate 2, as well as first mounting holes 11 on each board and third mounting holes 12 for fixing the board mounting bracket 1.

[0035] The board mounting bracket 1 is mainly used to fix the aforementioned boards, specifically by using fasteners to secure each board to the board mounting bracket 1. The board mounting bracket 1 includes a second mounting hole and... Figure 1 The third mounting hole 12 is marked in the middle.

[0036] It should be noted that the second mounting hole corresponds to the first mounting hole 11 on each board, and can be either slot-shaped or circular. It should also be noted that... Figure 1 The markings only indicate the location of one first mounting hole 11 corresponding to one fastener. Figure 1The mounting holes on each board, secured with fasteners, are all first mounting holes 11. That is, the top row and bottom row of mounting holes on the front panel of each board are both first mounting holes. The second mounting holes of the corresponding board mounting bracket 1 can be slot-shaped holes or circular holes corresponding to the positions of the first mounting holes. In addition, the third mounting holes 12 located on both sides of the board mounting bracket 1 are mainly used to fix the board mounting bracket 1 in any desired installation position. It can also be understood that the entire EMU auxiliary driving system can be installed at any desired target location through the third mounting holes 12.

[0037] Backplane 2 includes a backplane bus and backplane connectors corresponding to each board. Each board is fixed to backplane 2 through its corresponding backplane connector. Furthermore, digital input board 3, digital output board 4, switching board 5, central processing board 6, communication board 7, driver assistance computing board 8, and data recording board 9 are all connected to the backplane bus.

[0038] It should be noted that the backplane bus has a heterogeneous redundant structure, including CAN bus and PCIe bus.

[0039] like Figure 1 As shown, the various boards are arranged on the back panel 2 in the following order: digital input board 3, digital output board 4, switching board 5, central processing board 6, communication board 7, driver assistance calculation board 8, data recording board 9, and power board group 10.

[0040] Among them, the digital input board 3, which can be called the DI (Digital Input) board, is mainly used to acquire and process DC 110V digital signals and interact with the central processing board 6 via the CAN bus and PCIe bus. Furthermore, the DI board features optocoupler electrical isolation, channel function self-diagnosis, voltage monitoring, signal hold, and watchdog functions; specifically, the DI board includes a communication module, a main chip module, a power supply module, and a front-end circuit module.

[0041] Digital Output Board 4, also known as the DO (Digital Output) board, is primarily used to output DC 110V digital signals and interact with the central processing board 6 via the CAN bus and PCIe bus. The DO board features optocoupler electrical isolation, channel function self-diagnosis, overcurrent protection, self-recovery function, and watchdog timer functionality. Specifically, the DO board includes a communication module, a main chip module, a power supply module, and a front-end circuit module.

[0042] Switching board 5 can be called SW (Switch) board. It is mainly used to complete data communication between digital input board 3, digital output board 4, switching board 5, central processing board 6, communication board 7, and driver assistance computing board 8, and to complete the interconnection between these boards.

[0043] Central Processing Board 6, also known as the CPU (Central Processing Unit) board, is the central processing unit of the entire EMU (Electric Multiple Unit) auxiliary driving system. It is primarily responsible for the scheduling and communication of all hardware and software resources within the system. The CPU board has self-diagnostic capabilities, interacts with other boards via the CAN bus and PCIe bus, and can monitor itself and other boards. Specifically, the CPU board monitors the entire EMU auxiliary driving system in real time, including temperature, voltage, and communication, and performs fault storage and fail-safe operation. It records all system operation data in real time, ensuring the entire EMU auxiliary driving system complies with fail-safe principles.

[0044] Communication board 7, also known as the TSN (Time Sensitive Networking) board, serves as the external interface for the EMU's auxiliary driving system, responsible for communication between the system and switches on the same network segment. The TSN board is a standalone standard 3U board, 4HP wide (3 inches high). It carries the TSN communication protocol stack and has three Ethernet ports on its front panel: two for Ethernet connection and one for maintenance. The TSN board communicates with the central processing board 6 via the CAN bus and PCIe bus.

[0045] The driver assistance system (DAS) computing board 8 is primarily used for core intelligent model calculations. It stores static information such as train timetables, route data, and travel data, performing local storage and parsing. Route data mainly includes kilometer markers, route speeds, gradients, tunnels, speed limits, and train timetables. Specifically, the train timetable includes departure and arrival times and station information. The DAS board includes a high-speed Ethernet interface, which connects to the CAN bus and PCIe bus, communicating with the central processing board 6 and data recording board 9 via these buses.

[0046] Data logging board 9, also known as REC (Recorder) board, is primarily used to record the real-time operating data of the EMU's auxiliary driving system. Specifically, it acquires the required data via the CAN bus and PCIe bus. Digital input board 3, digital output board 4, switching board 5, central processing board 6, communication board 7, and auxiliary driving calculation board 8 record their own operating status and operating time, and then send this data to the REC board. After receiving the recorded data from other boards, the REC board uses intelligent calculations to determine its remaining lifespan. The front panel of the REC board includes an LCD screen displaying the remaining lifespan and operating time of each board.

[0047] The power board group 10, which can be called the PWR (Power) board group, is a redundant structure, including a first power board PWR1 and a second power board PWR2. Specifically, PWR1 and PWR2 adopt different hardware designs to form a redundant structure. This power board group 10 integrates DC 110V / 24V power to power the entire EMU auxiliary driving system.

[0048] Optional, see Figure 2 The above view of the auxiliary driving system for high-speed trains provided in this application is an example diagram.

[0049] like Figure 2 As shown, the anti-vibration strip 14 is installed on the top of the board mounting bracket 1. Additionally, the anti-vibration strip 14 is also installed on the bottom of the board mounting bracket 1. The bottom and top of the board mounting bracket are symmetrically provided with mounting grooves, and the anti-vibration strip 14 is installed in these grooves. The installation direction of the anti-vibration strip 14 includes both the extension direction of each board and the arrangement direction of each board. That is, as shown... Figure 2 As shown, the installation direction of the seismic strip 14 is parallel to the extension direction of each plate and perpendicular to the arrangement direction of each plate. Alternatively, it can be perpendicular to the extension direction of each plate and parallel to the arrangement direction of each plate.

[0050] in addition, Figure 2 The second mounting hole 13 of the board mounting bracket 1 is marked in the middle.

[0051] Optionally, the train auxiliary driving system also includes a fan, which is mounted on the bottom of the board mounting bracket 1.

[0052] In summary, installing anti-vibration strips 14 on the top and bottom of the plate mounting bracket 1 can effectively reduce the impact of vibrations generated during train operation on the EMU auxiliary driving system, effectively increase the vibration resistance of the EMU auxiliary driving system, and thus increase the service life of the entire EMU auxiliary driving system.

[0053] For example, see Figure 3 The side view example diagram of the EMU auxiliary driving system provided in this application.

[0054] Figure 3 The part circled in the middle is the bottom of the board mounting bracket 1, which is used to install the fan, and the airflow direction of the fan is perpendicular to the arrangement direction of each board.

[0055] Specifically, the fan is connected to the central processing board 6, which controls the fan's start and stop. The central processing board 6 has a temperature detection function. When it detects that the temperature of the train's auxiliary driving system is too high, it starts the fan to cool it down. Once the temperature of the entire system reaches the normal operating temperature, the fan shuts off, which is both intelligent and energy-saving.

[0056] The fan design can further improve the service life of the EMU's auxiliary driving system.

[0057] In summary, the EMU auxiliary driving system provided in this application includes a board mounting bracket, anti-vibration strips mounted on the top and / or bottom of the board mounting bracket, a backplate, and digital input boards, digital output boards, switching boards, central processing boards, communication boards, auxiliary driving calculation boards, data recording boards, and power supply boards mounted on the backplate. Each of the aforementioned boards includes a first mounting hole, and the board mounting bracket includes a second mounting hole. Each board is fixed to the board mounting bracket by fasteners. The backplate includes a backplate bus and backplate connectors that connect to each board. This application adopts a modular design, integrating the entire EMU auxiliary driving system into the board mounting bracket in the form of boards, thus solving the problem of low integration in existing EMU auxiliary driving systems.

[0058] Specifically, the EMU auxiliary driving system provided in this application can be applied to high-speed electric multiple unit (EMU) trains, improving train operation efficiency, safety, and passenger comfort. It can promptly detect and handle faults by monitoring train operation status and parameters in real time, reducing the occurrence of accidents. This EMU auxiliary driving system can automatically calculate optimal operating parameters and automatically adjust the train speed, enabling the train to operate smoothly according to actual conditions, improving operational efficiency and accuracy. Through technologies such as automatic driving and remote control, it reduces the driver's workload, improves train operation stability, and thus enhances the passenger's travel experience.

[0059] The auxiliary driving system for high-speed trains provided in this application also has the following advantages:

[0060] It is more intelligent, enabling more automatic control and driving functions; it is safe and reliable, continuously optimizing and improving system design and algorithms to enhance the safety and reliability of the entire EMU auxiliary driving system, greatly reducing the occurrence of faults and accidents. Furthermore, by optimizing the design of the board mounting bracket, the vibration resistance and practicality of the entire system are improved; it is energy-saving and environmentally friendly, and the application of the EMU auxiliary driving system provided in this application can reduce the energy consumption and emissions of the EMU.

[0061] It should be noted that the various boards mentioned above are interconnected via backplane wiring, that is, via the CAN bus and PCIe bus. For an example, see [link to example]. Figure 4 The system architecture diagram of the EMU auxiliary driving system provided in this application is shown.

[0062] like Figure 4 As shown, the CPU board, REC board, TSN board, SW board, DI board, DO board, and DAS board are all connected to the CAN bus and PCIe bus.

[0063] Specifically, the CPU board interacts with other boards via the CAN bus and PCIe bus, and can also monitor itself and other boards. The CPU board's Ethernet communication interface can be used for software upgrades and maintenance testing of the EMU's auxiliary driving system.

[0064] The REC board acquires and records data in real time via the CAN bus and PCIe bus. For example, the REC board acquires the number of high and low level jumps of each point on the DI and DO boards via the CAN bus and PCIe bus. Furthermore, external devices can download the operating data of the EMU auxiliary driving system through the Ethernet communication interface of the REC board. After data analysis, it can assist on-site personnel in troubleshooting and accurately locating the fault point.

[0065] The DAS board can quickly obtain vehicle information from the CPU board and REC board via the CAN bus and PCIe bus.

[0066] The DI and DO boards use 48-pin 110V input / output interfaces to acquire the vehicle's electrical status information and to achieve electrical control of the vehicle.

[0067] The TSN board's Ethernet interface connects to the switch to obtain vehicle control information and connects to the vehicle's display screen to show curves.

[0068] The entire auxiliary driving system of the EMU uses 24V power supply, which is redundantly powered by PWR1 and PWR2 boards.

[0069] In summary, this heterogeneous and redundant connection structure can avoid common-cause communication failures and improve the safety and reliability of the EMU auxiliary driving system. It should also be noted that the EMU auxiliary driving system provided in this application is a component of the train network control system, closely integrated with the train network. It can acquire train operation information in real time and provide real-time feedback on train operation suggestions, thereby achieving better and more precise control.

[0070] In practical applications, the EMU auxiliary driving system provided in this application connects to the train control network via the train communication bus, interacting with the train central control unit, driver display screen, and remote wireless transmission device. It obtains information such as the current actual train speed, driver's handle status, and traction / braking status from the train central control unit, and the train's position from the remote wireless transmission device. After internal calculations, the driver auxiliary driving system sends train operation suggestions to the driver display screen via the train control network. The suggested speed and operation information are accurately displayed on the main operating page of the driver display screen, allowing the driver to focus solely on the driver display screen while operating the train. This simplifies operation, reduces driver workload, and serves as an auxiliary function of the EMU, prompting and guiding the driver to perform energy-saving driving operations while ensuring safety and punctuality.

[0071] Finally, it should be noted that the above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Although the present utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions recorded in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.

Claims

1. A high-speed train auxiliary driving system, characterized in that, include: The board mounting bracket, anti-vibration strip, backplate, and digital input boards, digital output boards, switching boards, central processing boards, communication boards, driver assistance computing boards, data logging boards, and power supply boards mounted on the backplate; Each board on the backplate includes a first mounting hole, and the board mounting bracket includes a second mounting hole corresponding to the first mounting hole; the shape of the second mounting hole includes a groove or a circle, and each board is fixed to the board mounting bracket by fasteners after aligning the first mounting hole and the second mounting hole; the board mounting bracket is provided with a third mounting hole for fixing the board mounting bracket at a target position; The backplane includes a backplane bus and backplane connectors corresponding to each of the boards, and the backplane connectors are connected to each of the boards; the digital input boards, digital output boards, switching boards, central processing boards, communication boards, driver assistance computing boards, and data recording boards are all connected to the backplane bus. The anti-vibration strip is installed on the top and / or bottom of the plate mounting bracket.

2. The EMU auxiliary driving system according to claim 1, characterized in that, The various boards are arranged on the back panel in the following order: digital input board, digital output board, switching board, central processing board, communication board, driver assistance computing board, data recording board, and power board group.

3. The auxiliary driving system for high-speed trains according to claim 1, characterized in that, The board mounting bracket is symmetrically provided with mounting slots at the top and / or the bottom of the board mounting bracket; The anti-vibration strip is installed on the mounting groove, and the installation direction of the anti-vibration strip is the extension direction of each plate and the arrangement direction of each plate.

4. The auxiliary driving system for high-speed trains according to claim 1, characterized in that, The backplane bus has a heterogeneous redundant structure, including a CAN bus and a PCIe bus.

5. The auxiliary driving system for high-speed trains according to claim 1, characterized in that, The power board assembly has a redundant structure, including a first power board and a second power board.

6. The auxiliary driving system for high-speed trains according to claim 1, characterized in that, The front panel of the data logging board includes an LCD screen.

7. The auxiliary driving system for high-speed trains according to claim 1, characterized in that, It also includes fans; The fan is installed at the bottom of the board mounting bracket and connected to the central processing board; the airflow direction of the fan is perpendicular to the arrangement direction of each board.

8. The EMU auxiliary driving system according to claim 4, characterized in that, The driver assistance computing board includes a high-speed Ethernet interface; The driver assistance computing board uses the high-speed Ethernet interface to connect to the CAN bus and PCIE bus, and communicates with the central processing board and the data recording board through the CAN bus and PCIE bus.

9. The auxiliary driving system for high-speed trains according to claim 1, characterized in that, The communication board is 3 inches high; The front panel of the communication board includes three Ethernet interfaces, two of which are Ethernet connection interfaces and one is a maintenance interface.

10. The EMU auxiliary driving system according to claim 1, characterized in that, Both the digital input board and the digital output board include a communication module, a main chip module, a power supply module, and a front-end circuit module.

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