Railway vehicle for virtually grouping trains

Abstract

The invention relates to the technical field of railway locomotives, and particularly discloses a railway vehicle for a virtual marshalling train, the railway vehicle comprises a first vehicle body, a second vehicle body, a buffer energy absorption mechanism, an energy storage mechanism and a speed measurement mechanism, the first vehicle body comprises a first bogie and a first vehicle body, and the second vehicle body comprises a second bogie and a second vehicle body; the buffering energy absorption mechanism can deform to provide buffering between the first vehicle body and the second vehicle body, the energy storage mechanism is arranged on the first vehicle body and / or the second vehicle body and used for providing electric energy for electric equipment of the energy storage mechanism, and the speed measurement mechanism is used for detecting the speed of the first vehicle body and the speed of the second vehicle body and sending measured speed signals to the remote communication end. The railway vehicle can provide energy absorption buffer for the tail of the virtual marshalling train, and can perform speed measurement, electric energy supply and other work on the virtual marshalling train, so that the integration of measurement and control of the virtual marshalling train is realized, and the safe and stable operation of the virtual marshalling train is ensured.

Description

Technical Field

[0001] This invention relates to the field of railway locomotive technology, and more particularly to a railway vehicle for virtual train formation. Background Technology

[0002] Virtual train formation is a new type of rail transit system that uses vehicle-to-vehicle communication technology to achieve virtual connections between train units, allowing for flexible formation and operation without physical couplers. Train units can operate independently or in combination to adapt to different passenger flow demands, improving operational efficiency and passenger experience.

[0003] In existing technologies, the tail device installed at the rear of virtual train formations primarily serves for wind pressure detection and basic positioning. However, this device lacks an energy-absorbing structure design and cannot effectively absorb impact energy in a collision. Simultaneously, the locomotive coupler buffers suffer from insufficient energy absorption efficiency, failing to meet the collision energy absorption requirements of virtual train formations in short-distance approach scenarios (around 100 meters), thus limiting safety performance. Furthermore, the locomotive speed control system is susceptible to wheel wear, leading to speed calculation distortion and consequently causing synchronization misalignment risks during virtual formation, significantly reducing the safety and reliability of train operation. Summary of the Invention

[0004] The purpose of this invention is to provide a railway vehicle for virtual train formation, which can provide energy-absorbing buffers at the rear of the virtual train formation, and can perform speed measurement and power supply for the virtual train formation, thereby ensuring the safe and stable operation of the virtual train formation.

[0005] To achieve this objective, the present invention adopts the following technical solution:

[0006] Railway vehicles used for virtual train formation are positioned at the rear of the virtual train, and these railway vehicles include:

[0007] The first vehicle body includes a first bogie and a first body mounted on the first bogie;

[0008] The second car body includes a second bogie and a second body mounted on the second bogie;

[0009] A buffer energy-absorbing mechanism is connected between the first vehicle body and the second vehicle body. The buffer energy-absorbing mechanism can deform to provide buffering between the first vehicle body and the second vehicle body.

[0010] An energy storage mechanism is provided on the first car body and / or the second car body, and the energy storage mechanism is used to provide electrical energy to the electrical equipment of the railway vehicle itself.

[0011] The speed measuring mechanism is used to detect the speed of the first vehicle body and the second vehicle body, and send the measured speed signal to the remote communication terminal.

[0012] Preferably, it also includes:

[0013] An acceleration measurement mechanism includes a first accelerometer and a second accelerometer. The first accelerometer is mounted on the first vehicle body and is used to detect the acceleration of the first vehicle body. The second accelerometer is mounted on the second vehicle body and is used to detect the acceleration of the second vehicle body. The first accelerometer and the second accelerometer are redundant to each other.

[0014] The pressure measurement mechanism includes a first pressure sensor and a second pressure sensor. The first pressure sensor is mounted on the first bogie and is used to detect the brake line pressure when the vehicle is connected to the first bogie side. The second pressure sensor is mounted on the second bogie and is used to detect the brake line pressure when the vehicle is connected to the second bogie side.

[0015] Preferably, the speed measuring mechanism includes a first speed measuring radar and a second speed measuring radar. The first speed measuring radar is installed on the first vehicle body and is used to detect the speed of the first vehicle body. The second speed measuring radar is installed on the second vehicle body and is used to detect the speed of the second vehicle body. The first speed measuring radar and the second speed measuring radar are redundant to each other.

[0016] Preferably, the device also includes a microcabinet and a wireless communication mechanism disposed on the first vehicle body and / or the second vehicle body;

[0017] The micro cabinet is connected to the remote communication terminal via the wireless communication mechanism. The speed data measured by the first speed measuring radar, the speed data measured by the second speed measuring radar, the acceleration data measured by the first accelerometer, the acceleration data measured by the second accelerometer, the pressure data measured by the first air pressure sensor, and the pressure data measured by the second air pressure sensor are sequentially transmitted to the remote communication terminal through the micro cabinet and the wireless communication mechanism.

[0018] Preferably, the buffer energy absorption mechanism has a displacement sensor, which is used to detect the deformation of the buffer energy absorption mechanism. The deformation measured by the displacement sensor is transmitted to the remote communication terminal through the micro cabinet and the wireless communication mechanism in sequence. When the deformation measured by the displacement sensor reaches a threshold, the micro cabinet sends an alarm signal to the remote communication terminal through the wireless communication mechanism.

[0019] Preferably, the buffer energy absorption mechanism includes a hydraulic buffer, wherein one of the fixed end and the telescopic end of the hydraulic buffer is connected to the first vehicle body, and the other is connected to the second vehicle body.

[0020] Preferably, the hydraulic buffers are provided in multiple quantities, and the multiple hydraulic buffers are distributed at intervals between the first vehicle body and the second vehicle body.

[0021] Preferably, the energy storage mechanism includes a lithium battery and a supercapacitor disposed on the first vehicle body and / or the second vehicle body.

[0022] Preferably, the system also includes an autonomous power generation mechanism, which is located on the first vehicle body and / or the second vehicle body and is capable of generating electricity autonomously and storing the generated electricity in the energy storage mechanism.

[0023] Preferably, the autonomous power generation mechanism includes:

[0024] Solar panels are disposed on the top of the first vehicle body and / or the top of the second vehicle body;

[0025] A wind turbine is mounted on the first vehicle body and / or the second vehicle body.

[0026] Beneficial effects:

[0027] The railway vehicle provided by this invention is installed at the rear of a virtual train formation. A buffer energy-absorbing mechanism is installed between the first and second car bodies. When the rear of the virtual train formation encounters an accident such as a rear-end collision, the first and second car bodies are compressed, causing the buffer energy-absorbing mechanism to deform and provide effective energy absorption and cushioning. An energy storage mechanism stores emergency electrical energy to temporarily provide power to the railway vehicle's own electrical equipment, ensuring the vehicle has emergency power supply capabilities in unexpected situations. A speed measuring mechanism is installed to detect the speed of the first and second car bodies in real time and transmit the speed signal to a remote communication terminal. The above-described railway vehicle configuration achieves a "three-in-one" protection chain of accurate speed measurement, emergency function, and collision energy absorption, ensuring the safe and stable operation of the virtual train formation. Attached Figure Description

[0028] Figure 1 This is a structural schematic diagram of a railway vehicle used for virtual train formation, provided by the present invention.

[0029] In the picture:

[0030] 1. First car body; 11. First bogie; 12. First body;

[0031] 2. Second car body; 21. Second bogie; 22. Second body;

[0032] 3. Energy storage mechanisms;

[0033] 41. First speed measuring radar; 42. Second speed measuring radar;

[0034] 51. First accelerometer; 52. Second accelerometer;

[0035] 61. First barometric pressure sensor; 62. Second barometric pressure sensor;

[0036] 71. Microcomputer cabinet; 72. Wireless communication mechanism;

[0037] 8. Hydraulic buffer;

[0038] 91. Solar panel; 92. Wind turbine. Detailed Implementation

[0039] The technical solution of the present invention will now be clearly and completely described with reference to the accompanying drawings. Obviously, the described embodiments are only some, not all, of the embodiments of the present invention. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0040] In the description of this invention, it should be noted that the terms "center," "upper," "lower," "left," "right," "vertical," "horizontal," "inner," and "outer," etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are used only for the convenience of describing the invention and for 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. Therefore, they should not be construed as limitations on the invention. Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance. The terms "first position" and "second position" refer to two different positions. Furthermore, "above," "on top of," and "over" the first feature in relation to the second feature includes the first feature directly above and diagonally above the second feature, or simply indicates that the first feature is at a higher horizontal level than the second feature. "Below," "under," and "below" the first feature in relation to the second feature includes the first feature directly below and diagonally below the second feature, or simply indicates that the first feature is at a lower horizontal level than the second feature.

[0041] In the description of this invention, it should be noted that, unless otherwise explicitly specified and limited, the terms "installation," "connection," and "linking" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection of two components. Those skilled in the art can understand the specific meaning of the above terms in this invention based on the specific circumstances.

[0042] Embodiments of the present invention are described in detail below. Examples of these embodiments are shown in the accompanying drawings, wherein the same or similar reference numerals denote the same or similar elements or elements having the same or similar functions throughout. The embodiments described below with reference to the accompanying drawings are exemplary and are only used to explain the present invention, and should not be construed as limiting the present invention.

[0043] This embodiment provides a railway vehicle for virtual train formation. (Refer to...) Figure 1 As shown, the railway vehicle is located at the rear of a virtual train formation. The railway vehicle includes a first car body 1, a second car body 2, a buffer energy-absorbing mechanism, an energy storage mechanism 3, and a speed measuring mechanism. The first car body 1 includes a first bogie 11 and a first body 12 mounted on the first bogie 11; the second car body 2 includes a second bogie 21 and a second body 22 mounted on the second bogie 21; the buffer energy-absorbing mechanism is connected between the first body 12 and the second body 22, and the buffer energy-absorbing mechanism can deform to provide buffering between the first body 12 and the second body 22; the energy storage mechanism 3 is located on the first body 12 and / or the second body 22, and is used to provide electrical energy to the railway vehicle's own electrical equipment; the speed measuring mechanism is used to detect the speed of the first body 12 and the second body 22, and transmit the measured speed signal to a remote communication terminal.

[0044] In this embodiment, the railway vehicle is positioned at the rear of the virtual train formation. A buffer energy-absorbing mechanism is installed between the first body 12 and the second body 22. When the rear of the virtual train formation encounters an accident such as a rear-end collision, the first body 12 and the second body 22 are compressed, causing the buffer energy-absorbing mechanism to deform and provide effective energy absorption and cushioning. The energy storage mechanism 3 stores emergency electrical energy to temporarily provide power to the railway vehicle's own electrical equipment, ensuring that the vehicle has the ability to supply emergency power in unexpected situations. The speed measuring mechanism is used to detect the speed of the first body 12 and the second body 22 in real time and send the speed signal to a remote communication terminal in real time. The above-mentioned railway vehicle configuration realizes a "three-in-one" protection chain of accurate speed measurement, emergency function, and collision energy absorption, ensuring the safe and stable operation of the virtual train formation.

[0045] Specifically, the remote communication terminal can display train speed, location, and other train operation information on the railway line. By sending alarm signals and speed signals to the remote communication terminal through the railway vehicle, trains behind on the railway line can receive the aforementioned alarm signals and speed signals, so that the following trains can adjust their operating speed in a timely manner to ensure safety.

[0046] Furthermore, the remote communication terminal also serves as a monitoring terminal. By acquiring the speed of railway vehicles through the remote communication terminal, the actual speed is compared with the target speed. If a speed deviation exists, a speed adjustment command can be sent to the virtual train formation via the remote communication terminal to adjust the speed of the virtual variable-speed train.

[0047] In this embodiment, the railway vehicle further includes an acceleration measurement mechanism and a pipe pressure measurement mechanism. The acceleration measurement mechanism includes a first accelerometer 51 and a second accelerometer 52. The first accelerometer 51 is mounted on the first body 12 and is used to detect the acceleration of the first body 12. The second accelerometer 52 is mounted on the second body 22 and is used to detect the acceleration of the second body 22. The pipe pressure measurement mechanism includes a first air pressure sensor 61 and a second air pressure sensor 62. The first air pressure sensor 61 is mounted on the first bogie 11 and is used to detect the brake line pressure when the vehicle is connected to the first bogie 11 side. The second air pressure sensor 62 is mounted on the second bogie 21 and is used to detect the brake line pressure when the vehicle is connected to the second bogie 21 side. Specifically, the first accelerometer 51 and the second accelerometer 52 are redundant. Both the first accelerometer 51 and the second accelerometer 52 are triaxial accelerometers, capable of accurately detecting the acceleration of the first body 12 and the second body 22. The first air pressure sensor 61 and the second air pressure sensor 62 are respectively installed on the brake lines of the first bogie 11 and the second bogie 21.

[0048] In this embodiment, the speed measuring mechanism includes a first speed measuring radar 41 and a second speed measuring radar 42. The first speed measuring radar 41 is mounted on the first vehicle body 12 and is used to detect the speed of the first vehicle body 12, and the second speed measuring radar 42 is mounted on the second vehicle body 22 and is used to detect the speed of the second vehicle body 22. Specifically, the first speed measuring radar 41 and the second speed measuring radar 42 are redundant to each other.

[0049] Specifically, the railway vehicle also includes a microcomputer cabinet 71 and a wireless communication mechanism 72 installed on the first body 12 and / or the second body 22. The microcomputer cabinet 71 is connected to a remote communication terminal via the wireless communication mechanism 72. The speed data measured by the first speed measuring radar 41, the speed data measured by the second speed measuring radar 42, the acceleration data measured by the first accelerometer 51, the acceleration data measured by the second accelerometer 52, the pressure data measured by the first air pressure sensor 61, and the pressure data measured by the second air pressure sensor 62 are sequentially transmitted to the remote communication terminal through the microcomputer cabinet 71 and the wireless communication mechanism 72. Specifically, the first speed measuring radar 41, the second speed measuring radar 42, the first accelerometer 51, the second accelerometer 52, the first air pressure sensor 61, and the second air pressure sensor 62 are all communicatively connected to the microcomputer cabinet 71. The speed data measured by the first speed measuring radar 41, the speed data measured by the second speed measuring radar 42, the acceleration data measured by the first accelerometer 51, the acceleration data measured by the second accelerometer 52, the pressure data measured by the first air pressure sensor 61, and the pressure data measured by the second air pressure sensor 62 are sent to the microcomputer cabinet 71. After the data is processed in the microcomputer cabinet 71, it is sent to the remote communication terminal through the wireless communication mechanism 72.

[0050] In this embodiment, the energy-absorbing buffer mechanism includes a displacement sensor. The displacement sensor detects the deformation of the energy-absorbing buffer mechanism. The deformation measured by the displacement sensor is sequentially transmitted to a remote communication terminal via a microcontroller cabinet 71 and a wireless communication mechanism 72. When the deformation measured by the displacement sensor reaches a threshold, the microcontroller cabinet 71 sends an alarm signal to the remote communication terminal via the wireless communication mechanism 72. Specifically, when the virtual train encounters an accident such as a rear-end collision, the first body 12 and the second body 22 are compressed, and the energy-absorbing buffer mechanism deforms to provide effective energy absorption and buffering. During this process, the displacement sensor detects the deformation of the energy-absorbing buffer mechanism and transmits it to the microcontroller cabinet 71 in real time. The microcontroller cabinet 71 stores a preset threshold deformation. When the deformation reaches the threshold deformation, the microcontroller cabinet 71 generates an alarm signal, which is transmitted to the remote communication terminal via the wireless communication mechanism 72, providing real-time emergency notification of the accident.

[0051] For example, the displacement sensor is configured as a piston displacement laser measuring instrument.

[0052] For example, the wireless communication unit 72 adopts dual-mode communication, namely 5G-R (railway-dedicated frequency band) + LoRa (emergency backup). The wireless communication unit 72 directly connects to the rear train control system to provide the train's operation information.

[0053] In this embodiment, the energy-absorbing buffer mechanism includes a hydraulic buffer 8. One of the fixed end and the telescopic end of the hydraulic buffer 8 is connected to the first vehicle body 12, and the other is connected to the second vehicle body 22. Specifically, one of the fixed end and the telescopic end of the hydraulic buffer 8 is detachably connected to the first vehicle body 12, and the other is detachably connected to the second vehicle body 22. Multiple hydraulic buffers 8 are provided, and these multiple hydraulic buffers 8 are spaced apart between the first vehicle body 12 and the second vehicle body 22. Specifically, by spaced out multiple hydraulic buffers 8, a redundant design for energy absorption is achieved.

[0054] In this embodiment, the energy storage mechanism 3 includes a lithium battery and a supercapacitor disposed on the first body 12 and / or the second body 22. Specifically, the energy storage mechanism 3 adopts a hybrid energy storage system of lithium battery and supercapacitor to effectively ensure the amount of electrical energy stored.

[0055] In this embodiment, the railway vehicle also includes an autonomous power generation mechanism, which is located on the first body 12 and / or the second body 22. This mechanism is capable of autonomously generating electricity and storing the generated energy in the energy storage mechanism 3. The autonomous power generation mechanism is electrically connected to the energy storage mechanism 3. By providing the autonomous power generation mechanism, the railway vehicle can possess the ability to generate electricity autonomously, thereby achieving autonomous energy supply to the energy storage mechanism 3.

[0056] Specifically, the autonomous power generation mechanism includes a solar panel 91 and a wind turbine 92. The solar panel 91 is located on the top of the first body 12 and / or the top of the second body 22; the wind turbine 92 is located on the first body 12 and / or the second body 22. This enables the generation of electricity from both solar and wind power, achieving autonomous power generation through multiple clean energy sources, improving energy efficiency, and ensuring clean and green energy.

[0057] In summary, the aforementioned railway vehicle configuration achieves a "three-in-one" protection chain of precise speed measurement, emergency functions, and collision energy absorption, ensuring the safe and stable operation of virtual train formations.

[0058] Obviously, the above embodiments of the present invention are merely examples for clearly illustrating the present invention, and are not intended to limit the implementation of the present invention. Those skilled in the art can make other variations or modifications based on the above description. It is neither necessary nor possible to exhaustively describe all embodiments here. Any modifications, equivalent substitutions, and improvements made within the spirit and principles of the present invention should be included within the scope of protection of the claims of the present invention.

Claims

1. A railway vehicle used for virtual train formation, positioned at the rear of the virtual train formation, characterized in that, The railway vehicles used for virtual train formation include: The first vehicle body (1) includes a first bogie (11) and a first body (12) mounted on the first bogie (11). The second vehicle body (2) includes a second bogie (21) and a second body (22) mounted on the second bogie (21). A buffer energy-absorbing mechanism is connected between the first body (12) and the second body (22). The buffer energy-absorbing mechanism is deformable to provide buffering between the first body (12) and the second body (22). An energy storage mechanism (3) is provided on the first body (12) and / or the second body (22), and the energy storage mechanism (3) is used to provide electrical energy to the electrical equipment of the railway vehicle itself; The speed measuring mechanism is used to detect the speed of the first vehicle body (12) and the second vehicle body (22) and send the measured speed signal to the remote communication terminal.

2. The railway vehicle for virtual train formation according to claim 1, characterized in that, Also includes: The acceleration measurement mechanism includes a first accelerometer (51) and a second accelerometer (52). The first accelerometer (51) is installed on the first vehicle body (12) and is used to detect the acceleration of the first vehicle body (12). The second accelerometer (52) is installed on the second vehicle body (22) and is used to detect the acceleration of the second vehicle body (22). The first accelerometer (51) and the second accelerometer (52) are redundant to each other. The pressure measurement mechanism includes a first pressure sensor (61) and a second pressure sensor (62). The first pressure sensor (61) is mounted on the first bogie (11) and is used to detect the brake line pressure when the vehicle is connected to the first bogie (11). The second pressure sensor (62) is mounted on the second bogie (21) and is used to detect the brake line pressure when the vehicle is connected to the second bogie (21).

3. The railway vehicle for virtual train formation according to claim 2, characterized in that, The speed measuring mechanism includes a first speed measuring radar (41) and a second speed measuring radar (42). The first speed measuring radar (41) is installed on the first vehicle body (12) and is used to detect the speed of the first vehicle body (12). The second speed measuring radar (42) is installed on the second vehicle body (22) and is used to detect the speed of the second vehicle body (22). The first speed measuring radar (41) and the second speed measuring radar (42) are redundant to each other.

4. The railway vehicle for virtual train formation according to claim 3, characterized in that, It also includes a microcomputer cabinet (71) and a wireless communication mechanism (72) disposed on the first vehicle body (12) and / or the second vehicle body (22). The micro cabinet (71) is connected to the remote communication terminal via the wireless communication mechanism (72). The speed data measured by the first speed measuring radar (41), the speed data measured by the second speed measuring radar (42), the acceleration data measured by the first accelerometer (51), the acceleration data measured by the second accelerometer (52), the pressure data measured by the first air pressure sensor (61), and the pressure data measured by the second air pressure sensor (62) are sequentially sent to the remote communication terminal via the micro cabinet (71) and the wireless communication mechanism (72).

5. The railway vehicle for virtual train formation according to claim 4, characterized in that, The buffer energy absorption mechanism has a displacement sensor, which is used to detect the deformation of the buffer energy absorption mechanism. The deformation measured by the displacement sensor is sent to the remote communication terminal through the micro cabinet (71) and the wireless communication mechanism (72) in sequence. When the deformation measured by the displacement sensor reaches a threshold, the micro cabinet (71) sends an alarm signal to the remote communication terminal through the wireless communication mechanism (72).

6. The railway vehicle for virtual train formation according to claim 1, characterized in that, The buffer energy absorption mechanism includes a hydraulic buffer (8), one of the fixed end and the telescopic end of the hydraulic buffer (8) is connected to the first vehicle body, and the other is connected to the second vehicle body.

7. The railway vehicle for virtual train formation according to claim 6, characterized in that, The number of hydraulic buffers (8) is provided in multiples, and the multiple hydraulic buffers (8) are distributed at intervals between the first body (12) and the second body (22).

8. The railway vehicle for virtual train formation according to claim 1, characterized in that, The energy storage mechanism (3) includes a lithium battery and a supercapacitor disposed on the first body (12) and / or the second body (22).

9. The railway vehicle for virtual train formation according to claim 1, characterized in that, It also includes an autonomous power generation mechanism (9), which is located on the first vehicle body (12) and / or the second vehicle body (22), and is capable of generating electricity autonomously and storing the generated electricity in the energy storage mechanism (3).

10. The railway vehicle for virtual train formation according to claim 9, characterized in that, The autonomous power generation mechanism (9) includes: A solar panel (91) is disposed on the top of the first vehicle body (12) and / or the top of the second vehicle body (22); A wind turbine (92) is mounted on the first body (12) and / or the second body (22).

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