Joint control system and method for electric hand braking of railway wagon and railway wagon

Abstract

The invention discloses a joint control system and method for electric hand braking of a rail wagon and the rail wagon, the joint control system comprises an electric hand braking machine, a hand braking control device, a junction box, a single vehicle controller CCID and a train bus cable, the electric hand braking machine is connected with the junction box through a hand braking sensing cable; one end of the hand brake control device is connected with a hand brake sensing cable and is connected with the electric hand brake, the other end of the hand brake control device is connected with the junction box through the electric hand brake, the junction box is connected with the single vehicle controller CCID through the hand brake sensing cable, and the single vehicle controller CCID is connected with a locomotive control room through the train bus cable. According to the invention, the inherent manual braking function of the hand brake is not influenced, braking can still be implemented by manually rotating the hand wheel of the hand brake, and relieving can still be manually completed by moving the relieving handle.

Description

Technical Field

[0001] The invention belongs to the technical field of railway freight cars, and in particular relates to a joint control system and method for electric hand brakes of railway freight cars, and a railway freight car. Background Art

[0002] The hand brake system is one of the key systems of railway freight cars. Its main function is to prevent the vehicle from slipping due to air brake failure when it is parked on a slope for a long time. However, the existing hand brake system has many shortcomings, which are mainly reflected in the following aspects:

[0003] First, the existing hand brake system uses single-vehicle control and manual braking. Every time the hand brake is needed, the operator must rely on manual power to turn the hand brake handwheel, which is time-consuming and labor-intensive. For the entire train, the situation is even more complicated. In order to ensure the safe parking of the entire train, the operator needs to apply hand brakes to multiple vehicles one by one, which further increases the consumption of time and physical strength, often beyond the range that human power can bear.

[0004] Secondly, the existing system has safety hazards. In the process of applying hand brakes to multiple vehicles one by one, the operator needs to shuttle between vehicles, which undoubtedly increases the risk of personal safety. In addition, since the size of the hand brake force is limited by manpower, the braking force often fails to meet the requirements, thus bringing potential dangers to parking safety.

[0005] Finally, before the train starts, the handbrakes need to be released manually one by one, which is also a time-consuming and labor-intensive process. Since all operations rely on manpower, it is easy for the handbrake of a vehicle to not be fully released. If the train is started without the handbrake being fully released, it may cause serious safety accidents such as wheel scratches or even derailment.

[0006] Therefore, it is urgent to develop a joint control method for the electric hand brake of a railway freight car to solve the above technical problems. Summary of the invention

[0007] The purpose of the present invention is to propose a joint control system, method and railway freight car for electric hand brake of railway freight car, which can implement braking by manually turning the hand brake hand wheel without affecting the inherent human braking function of the hand brake, and can also manually complete the release by moving the release handle.

[0008] In order to achieve the above-mentioned object, the present invention designs a joint control system for electric hand brake of railway freight car, comprising:

[0009] Electric hand brake, used for electric braking of vehicles;

[0010] Hand brake control device, controlling the braking operation of the electric hand brake;

[0011] Junction box, responsible for connecting and transmitting brake control signals;

[0012] The single vehicle controller CCID manages the single vehicle braking instructions and communicates with the train bus;

[0013] Train bus cable, connecting the single-car controller and the locomotive control room to achieve train-level communication;

[0014] The electric handbrake is connected to the junction box via a handbrake sensor cable, one end of the handbrake control device is connected to the electric handbrake via the handbrake sensor cable, and the other end is connected to the junction box via the electric handbrake, the junction box is connected to the single vehicle controller CCID via the handbrake sensor cable, and the single vehicle controller CCID is connected to the locomotive control room via the train bus cable.

[0015] The present invention also discloses a control method for a joint control system for an electric hand brake of a railway freight car. The joint control steps for the electric hand brake include: a locomotive sends a braking request to determine whether the train is moving; when the train is not moving, a braking command is sent to a single vehicle controller CCID; the single vehicle controller CCID sends a braking command to a hand brake control device; and the hand brake generates braking.

[0016] In a preferred embodiment of the present invention, the joint control steps for the electric hand brake also include: the locomotive sends a relief request; the relief command is sent to the single vehicle controller CCID; the single vehicle controller CCID sends a relief command to the hand brake control device; and the hand brake generates braking.

[0017] In a preferred embodiment of the present invention, the locomotive brake request is based on a speed sensor determining whether the train is moving.

[0018] In a preferred embodiment of the present invention, when the train is not moving, the braking command is not sent to the single-vehicle controller CCID.

[0019] In a preferred embodiment of the present invention, when the single vehicle controller CCID does not send a braking command to the hand brake control device, the braking fails and the error is fed back to the locomotive control room.

[0020] In a preferred embodiment of the present invention, when the single vehicle controller CCID does not send a release command to the hand brake control device, the release fails and the error is fed back to the locomotive control room.

[0021] In a preferred embodiment of the present invention, the locomotive is started and checked to determine whether the braking force is 0; when the braking force is not 0, the locomotive cannot be started and the hand brake is engaged; the locomotive is checked again.

[0022] In a preferred embodiment of the present invention, the locomotive is started to check whether the braking force is 0 based on the composite sensor.

[0023] The invention also discloses a railway freight car, including a joint control system for an electric hand brake of the railway freight car.

[0024] The beneficial effects of the present invention are as follows: the joint control system and control method for electric hand brakes for railway freight cars of the present invention comprehensively improve the efficiency, safety and reliability of the hand brake system through electrification, automation and intelligent design. It not only solves the problems of manpower dependence and potential safety hazards in traditional systems, but also brings new possibilities for the operation and management of railway freight cars. Through the design concepts of one-button control, real-time monitoring, multiple safety guarantees and human-machine collaboration, the present invention significantly enhances the safety of train operation while improving operating efficiency, and has important practical value and broad prospects for promotion.

[0025] First of all, the system realizes the electrification and automatic control of hand brakes by introducing components such as electric hand brakes, hand brake control devices, and single-vehicle controllers CCID. This innovation greatly reduces the physical burden on operators and improves the efficiency of braking operations. Most notably, this system realizes the one-button control function of hand brake release for the entire train. This not only greatly saves time and labor costs, but also ensures that the entire train can perform braking or release operations at the same time, significantly improving the consistency and efficiency of operations.

[0026] Secondly, the joint control system of the present invention connects the controllers of each vehicle to the locomotive control room through a train bus cable, realizing centralized control and real-time monitoring. This design not only improves the convenience of operation, but more importantly, significantly enhances safety. Operators can complete the braking operation without shuttling between vehicles, greatly reducing personal safety risks. At the same time, the system allows the driver to monitor the handbrake in real time, and can promptly detect whether there are vehicles in the train that have not released the handbrake before running, effectively avoiding the occurrence of dangerous conditions such as vehicles running with handbrakes.

[0027] Furthermore, the system introduces multiple safety mechanisms. For example, the speed sensor determines whether the train is moving, ensuring that the handbrake can only be applied when the train is stationary, ensuring the safety of vehicle operation. The composite sensor detects whether the braking force is zero, preventing the train from starting when the handbrake is not fully released. These designs effectively reduce the risk of operational errors and improve the safety of train operation.

[0028] In addition, the system also has fault detection and feedback functions. When abnormal conditions such as braking or mitigation failure occur, the system will promptly feedback error information to the locomotive control room, allowing operators to quickly identify and handle problems, further improving the reliability and safety of the system.

[0029] The present invention not only realizes automation, but also retains the manual brake relief function. When there is a problem with the motor and the control system, the operator can still apply the brake by manually turning the hand brake hand wheel, or move the relief handle to complete the relief. This design ensures the redundancy and reliability of the system, and can still ensure the parking safety of the vehicle under special circumstances.

[0030] Finally, the control method of the present invention is reasonably designed and has a clear operation process, including not only braking control, but also key links such as relief control and start-up inspection, ensuring the integrity and reliability of the entire braking process. The system also ensures that the hand braking force of the entire train is sufficient through precise control, further improving parking safety. BRIEF DESCRIPTION OF THE DRAWINGS

[0031] In order to more clearly illustrate the technical solutions of the embodiments disclosed in the present invention, the drawings of the embodiments will be briefly introduced below. These drawings are only used for illustrative purposes and are not intended to limit the protection scope of the present invention.

[0032] Figure 1 It is a schematic diagram of a joint control system for electric hand brake of a railway freight car of the present invention;

[0033] Figure 2 A method flow chart of a joint control system for electric hand brake of a railway freight car according to the present invention;

[0034] Figure 3 A method flow chart of a joint control system for electric hand brake of a railway freight car according to the present invention;

[0035] Figure 4 The present invention is a method flow chart of a joint control system for electric hand brake of railway freight car. DETAILED DESCRIPTION

[0036] The technical solution of the present invention (including the preferred technical solution) is further described in detail below by means of the accompanying drawings and by listing some optional embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0037] The present invention provides a joint control system for electric hand brake of railway freight car and a control method thereof, which will be further described in detail below in conjunction with the accompanying drawings and specific implementation methods.

[0038] like Figure 1As shown, the joint control system for electric hand brake of railway freight car of the present invention comprises electric hand brake 1, hand brake control device 2, junction box 3, single vehicle controller CCID 4 and train bus cable 5. These components form a complete control network through a specific connection mode, realizing the electric and intelligent control of hand brake.

[0039] The electric hand brake 1 is the core execution unit of the system, responsible for generating actual braking force according to the received control signal to achieve vehicle braking. It is connected to the junction box 3 through the hand brake sensor cable to ensure accurate transmission of the brake signal and can receive control instructions from the hand brake control device 2. It is connected to the junction box 3 through the hand brake sensor cable, and this connection method ensures accurate transmission of the brake signal.

[0040] The hand brake control device 2 is the control center of the system. One end of it is connected to the electric hand brake 1 through the hand brake sensor cable, and the other end is connected to the junction box 3 through the electric hand brake 1. The hand brake control device 2 can accurately control the action of the electric hand brake, and can also receive feedback information from the electric hand brake 1 to ensure the accurate execution of the brake command. This two-way connection mode enables the hand brake control device 2 to accurately control the action of the electric hand brake 1, and can also receive feedback information from the electric hand brake 1.

[0041] The junction box 3 plays a role in signal collection and distribution in the whole system. It is connected to the single-vehicle controller CCID4 through the hand brake sensor cable, ensuring that the single-vehicle level control signal can be accurately transmitted.

[0042] The single-vehicle controller CCID4 is a key node connecting the single-vehicle system with the vehicle control system. It is connected to the locomotive control room through the train bus cable 5 to achieve unified control of the entire train of freight cars. The single-vehicle controller CCID4 receives the braking or release command from the locomotive and forwards it to the hand brake control device 2. At the same time, it feeds back the error information to the locomotive control room when a fault occurs.

[0043] The train bus cable 5 serves as the medium for internal communication of the system. It connects the single-vehicle controller CCID4 and the locomotive control room, realizes the transmission of control signals between the locomotive and each vehicle, ensures the timely transmission and execution of commands, and the real-time feedback of status information.

[0044] like Figure 2-3As shown, the control method of the present invention mainly includes two main processes: braking control and relief control. In the braking control process, the locomotive first issues a braking request. The system will immediately determine whether the train is in motion, and this determination is based on the data of the speed sensor. Only when the train is stationary will the braking command be sent to the single vehicle controller CCID4. This design greatly improves the safety of the system and effectively prevents the occurrence of accidental braking during the operation of the train.

[0045] After receiving the braking command, the vehicle controller CCID4 will forward it to the hand brake control device 2. The hand brake control device 2 will then control the electric hand brake 1 to generate braking force. It is worth noting that if the vehicle controller CCID4 fails to successfully send the braking command to the hand brake control device 2 during this process, the system will determine the braking operation as a failure and immediately feed back the error information to the locomotive control room so that the operator can take timely measures.

[0046] During the relief control process, the operation process is similar to that of the brake control. First, the locomotive sends a relief request, and then the relief command is transmitted to the single vehicle controller CCID4 and the hand brake control device 2 in sequence. Finally, the electric hand brake 1 performs the relief action. Similarly, if the single vehicle controller CCID4 fails to successfully send the relief command to the hand brake control device 2, the system will determine the relief operation as a failure and feedback the error information to the locomotive control room.

[0047] like Figure 4 As shown, the present invention also specially designs a locomotive start-up inspection procedure to further ensure driving safety. When the locomotive is ready to start, the system will automatically determine whether the braking force is 0. This judgment is based on the data of the composite sensor and can accurately detect the residual braking force. If it is detected that the braking force is not 0, that is, there is an incompletely released brake, the system will prevent the locomotive from starting and prompt the operator to contact (i.e. release) the hand brake. After the release operation is completed, the system will check again, and only when it is confirmed that the braking force is 0, will the locomotive be allowed to start.

[0048] This design can not only effectively prevent wheel scratches or other safety accidents caused by incomplete release of the handbrake, but also improve the operation efficiency of the train. Through the automatic inspection and feedback mechanism, the problems caused by human negligence are greatly reduced, and the reliability of the entire system is improved.

[0049] It is worth mentioning that although this system realizes the electrification and automation of the hand brake, it does not completely eliminate the possibility of manual operation. In the event of a failure in the electrical system, the operator can still apply the brake by turning the hand brake hand wheel manually, or release the brake by moving the release handle. This design retains the redundancy of the system and can still ensure the safety of the vehicle under special circumstances.

[0050] Another important feature of the present invention is that it realizes one-key control of the hand brake of the entire train. Through the operation interface of the locomotive control room, the driver can control the hand brake status of all carriages of the entire train at the same time. This not only greatly improves the operating efficiency, saves a lot of manpower and time, but also ensures the consistency and sufficiency of the hand brake force of the entire train. At the same time, the one-key release function ensures that the entire train can release the hand brake at the same time, avoiding the safety hazards caused by the failure to release the brake of individual carriages.

[0051] In addition, the system also provides the driver with a real-time monitoring function of the handbrake status. Through the display interface in the control room, the driver can check the handbrake status of each car at any time and find out in time whether there are vehicles that have not released the handbrake before running. This function greatly reduces the possibility of dangerous conditions caused by the handbrake not being released.

[0052] The present invention also discloses a railway freight car using the above joint control system. The railway freight car integrates the joint control system of the present invention, realizes the automation, intelligence and centralized control of the hand brake operation on the basis of retaining the traditional hand brake function. It not only improves the operating efficiency and safety of the train, but also provides a more reliable and flexible solution for railway freight.

[0053] The joint control system and control method for electric hand brakes for railway freight cars of the present invention comprehensively improve the efficiency, safety and reliability of the hand brake system through electrification, automation and intelligent design. It effectively solves the problems of manpower dependence and potential safety hazards in traditional hand brake systems, and brings innovative improvements to the operation and management of railway freight cars. Through the design concepts of one-button control, real-time monitoring, multiple safety guarantees and human-machine collaboration, the present invention significantly enhances the safety of train operation while improving operating efficiency, and has important practical value and broad application prospects.

[0054] Those skilled in the art will readily appreciate that the above are merely preferred embodiments of the present invention and are not intended to limit the present invention. Any modifications, combinations, replacements, improvements, etc. made within the spirit and principles of the present invention are included within the protection scope of the present invention.

Claims

1. A joint control system for electric hand brake of railway freight car, characterized in that: include: Electric hand brake, used for electric braking of vehicles; Hand brake control device, controlling the braking operation of the electric hand brake; Junction box, responsible for connecting and transmitting brake control signals; The single vehicle controller CCID manages the single vehicle braking instructions and communicates with the train bus; Train bus cable, connecting the single-car controller and the locomotive control room to achieve train-level communication; The electric handbrake is connected to the junction box via a handbrake sensor cable, one end of the handbrake control device is connected to the electric handbrake via the handbrake sensor cable, and the other end is connected to the junction box via the electric handbrake, the junction box is connected to the single vehicle controller CCID via the handbrake sensor cable, and the single vehicle controller CCID is connected to the locomotive control room via the train bus cable.

2. A joint control method for electric hand brake of railway freight car applied to the system of claim 1, characterized in that: The joint control steps for the electric hand brake include: the locomotive sends a braking request to determine whether the train is moving; when the train is not moving, the braking command is sent to the single vehicle controller CCID; the single vehicle controller CCID sends the braking command to the hand brake control device; and the hand brake generates braking.

3. The joint control method for electric hand brake of railway freight car according to claim 2, characterized in that: The joint control steps for the electric hand brake also include: the locomotive sends a relief request; the relief command is sent to the single vehicle controller CCID; the single vehicle controller CCID sends a relief command to the hand brake control device; and the hand brake generates relief.

4. The joint control method for electric hand brake of railway freight car according to claim 2, characterized in that: Locomotive brake request, based on speed sensor to determine if the train is moving.

5. The joint control method for electric hand brake of railway freight car according to claim 2, characterized in that: When the train is not moving, the braking command is not sent to the single-vehicle controller CCID.

6. The joint control method for electric hand brake of railway freight car according to claim 2, characterized in that: When the single vehicle controller CCID does not send a brake command to the handbrake control device, the brake fails and the error is fed back to the locomotive control room.

7. The joint control method for electric hand brake of railway freight car according to claim 3, characterized in that: When the single vehicle controller CCID does not send a release command to the handbrake control device, the release fails and the error is fed back to the locomotive control room.

8. The joint control method for electric hand brake of railway freight car according to claim 2 or 3, characterized in that: The locomotive is started and checked to determine whether the braking force is 0; when the braking force is not 0, the locomotive cannot be started and the handbrake is engaged; the locomotive is checked again.

9. The joint control method for electric hand brake of railway freight car according to claim 8, characterized in that: During the locomotive startup check, the composite sensor is used to determine whether the braking force is 0.

10. A railway freight car characterized by: It comprises the joint control system for electric hand brake of railway freight car as claimed in claim 1.

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