Air supply control system and method for railway vehicle, device, and medium

Abstract

Provided are an air supply control system and method for a railway vehicle, a device, and a medium. The air supply control system (100) comprises a control module (10), an air supply module (20), and an air cylinder module (30); the control module (10) is used for generating an air supply instruction on the basis of an acquired pressure value in the air cylinder module (30), and sending the air supply instruction to the air supply module (20); and the air supply module (20) is used for receiving the air supply instruction, and providing compressed air to the air cylinder module (30) on the basis of the air supply instruction, so that the pressure value in the air cylinder module (30) is increased to provide working air to a pneumatic current collection device and an air supply braking system, thus the pneumatic current collection device and the air supply braking system work normally, guaranteeing normal use of the pneumatic current collection device and the air supply braking system.

Description

Air supply control system, method, device and medium for rail vehicle

[0001] CROSS-REFERENCE TO RELATED APPLICATIONS

[0002] This application claims priority to Chinese patent application number 2023111273726 filed with the Chinese Patent Office on September 1, 2023, entitled “A rail vehicle air supply control system, method, equipment and medium,” the entire contents of which are incorporated by reference into this application. Technical Field

[0003] The present application relates to the field of rail transportation technology, and in particular to an air supply control system, method, equipment and medium for a rail vehicle. Background Art

[0004] Currently, rail vehicles using air brakes are equipped with a main air compressor, which serves as the brake system's power source. This compressor can only operate stably and long-term when the vehicle is powered by the line. If a rail vehicle is parked for an extended period without power, the compressed air stored in the brake system leaks to a low pressure, rendering it unable to power the pneumatic current-collecting equipment required to supply the vehicle. Therefore, existing rail vehicles, in addition to the main air supply unit, also feature an auxiliary battery-powered air compressor to ensure the ability to operate the pneumatic current-collecting equipment in the event of an air brake system leak caused by prolonged power outages.

[0005] Application Contents

[0006] In view of this, the purpose of this application is to provide an air supply control system, method, equipment and medium for rail vehicles, which does not require the additional installation of an auxiliary air compressor. The air supply instruction is sent to the air supply module through the control module, and the air supply module supplies air to the pneumatic current receiving equipment or the braking system, so that the pneumatic current receiving equipment and the braking system can work normally, ensuring the normal use of the pneumatic current receiving equipment and the braking system.

[0007] In a first aspect, an embodiment of the present application provides an air supply control system for a rail vehicle, the air supply control system comprising a control module, an air supply module, and an air cylinder module, the control module and the air cylinder module being respectively connected to the air supply module, and a pneumatic current receiving device and a braking system being respectively connected to the air cylinder module;

[0008] The control module is used to generate an air supply instruction according to the pressure value collected in the air cylinder module, and send the air supply instruction to the air supply module;

[0009] The air supply module is used to receive the air supply instruction and provide compressed air to the air cylinder module based on the air supply instruction, so that the pressure value in the air cylinder module increases to provide working air to the pneumatic flow receiving equipment and the braking system, so that the pneumatic flow receiving equipment and the braking system can operate normally.

[0010] Furthermore, the air cylinder module includes a bow-lifting air cylinder and a brake system main air cylinder, and the air supply control system further includes a pressure switch and a pressure sensor, the bow-lifting air cylinder is connected to the pressure switch, and the brake system main air cylinder is connected to the pressure sensor;

[0011] When the pneumatic current collecting device is not working and the rail vehicle is in the first power supply mode:

[0012] The pressure switch is used to detect a first pressure value in the bow-lifting air cylinder in real time and send the first pressure value to the control module;

[0013] The control module is further configured to generate an auxiliary bow raising air supply instruction when it determines that the first pressure value is less than or equal to a first pressure threshold and simultaneously receives a bow raising air supply start signal, and send the auxiliary bow raising air supply instruction to the air supply module;

[0014] The air supply module is further configured to be powered by a DC 110V battery and to provide the compressed air to the bow raising air cylinder based on the auxiliary bow raising air supply instruction;

[0015] The control module is further configured to generate a first air supply stop instruction when it is determined that the first pressure value is greater than or equal to a second pressure threshold, and send the first air supply stop instruction to the air supply module;

[0016] The air supply module is further used to stop the air supply to the bow lifting cylinder based on the first air supply stop instruction.

[0017] Furthermore, when the pneumatic current collecting device is in operation and the rail vehicle is in the second power supply mode:

[0018] The pressure sensor is used to detect a second pressure value in the main air cylinder of the brake system in real time and send the second pressure value to the control module;

[0019] The control module is further configured to generate a main air cylinder air supply instruction when it is determined that the second pressure value is less than or equal to a third pressure threshold, and send the main air cylinder air supply instruction to the air supply module;

[0020] The air supply module is further configured to supply the compressed air to the brake system main air cylinder and the bow lifting air cylinder based on the main air cylinder air supply instruction through AC380V power supply;

[0021] The control module is further configured to generate a second air supply stop instruction when it is determined that the second pressure value is greater than or equal to a fourth pressure threshold, and send the second air supply stop instruction to the air supply module;

[0022] The air supply module is further used to stop the air supply to the brake system main air cylinder and the bow lifting air cylinder based on the second air supply stop instruction.

[0023] Furthermore, the air supply control system further comprises a safety valve, which is connected to the main air cylinder of the braking system;

[0024] The control module is further configured to control the safety valve to open when it is determined that the second pressure value is greater than or equal to a fifth pressure threshold.

[0025] Furthermore, the air supply control system further includes a relief valve, a first one-way valve, and a second one-way valve. The relief valve and the first one-way valve are both installed at the air outlet of the air supply module. The second one-way valve is installed between the lifting air cylinder and the brake system main air cylinder. The set pressure value of the relief valve is between the second pressure threshold and the third pressure threshold.

[0026] When the air supply module provides the compressed air to the lifting air cylinder in the first power supply mode, the compressed air enters the lifting air cylinder through the first one-way valve, and at the same time the relief valve is closed, so that the compressed air of the air supply module cannot enter the brake system main air cylinder;

[0027] When the air supply module provides the compressed air to the brake system main air cylinder and the lifting air cylinder in the second power supply mode, the relief valve is opened to allow the compressed air to enter the brake system main air cylinder through the relief valve;

[0028] When the air supply module is in the second power supply mode, after the compressed air in the lifting air cylinder is consumed, the compressed air in the brake system main air cylinder is supplemented into the lifting air cylinder through the second one-way valve.

[0029] Furthermore, the brake system master cylinder is connected to the brake system to provide the compressed air to the brake system through the brake system master cylinder.

[0030] In a second aspect, an embodiment of the present application further provides an air supply control method for a rail vehicle, the air supply control method being applied to an air supply control system for a rail vehicle, the air supply control system comprising a control module, an air supply module, and an air cylinder module, the control module and the air cylinder module being respectively connected to the air supply module, a pneumatic current receiving device and a braking system being respectively connected to the air cylinder module, the air supply control method comprising:

[0031] The control module generates an air supply instruction according to the pressure value collected in the air cylinder module, and sends the air supply instruction to the air supply module;

[0032] The air supply module receives the air supply instruction and provides compressed air to the air cylinder module based on the air supply instruction, so that the pressure value in the air cylinder module increases to provide working air to the pneumatic flow receiving equipment and the braking system, so that the pneumatic flow receiving equipment and the braking system can operate normally.

[0033] Furthermore, the air cylinder module includes a bow-lifting air cylinder and a brake system main air cylinder, and the air supply control system further includes a pressure switch and a pressure sensor, the bow-lifting air cylinder is connected to the pressure switch, and the brake system main air cylinder is connected to the pressure sensor;

[0034] When the pneumatic current collecting device is not working and the rail vehicle is in the first power supply mode, the air supply control method further includes:

[0035] The pressure switch detects a first pressure value in the bow-lifting air cylinder in real time, and sends the first pressure value to the control module;

[0036] When the control module determines that the first pressure value is less than or equal to the first pressure threshold and receives a pan-raising air supply start signal at the same time, it generates a pan-raising air supply instruction and sends the pan-raising air supply instruction to the air supply module;

[0037] The air supply module is powered by a DC110V battery and provides the compressed air to the bow raising air cylinder based on the bow raising air supply instruction;

[0038] When the control module determines that the first pressure value is greater than or equal to a second pressure threshold, the control module generates a first air supply stop instruction and sends the first air supply stop instruction to the air supply module;

[0039] The air supply module stops supplying air to the lifting cylinder based on the first air supply stop instruction.

[0040] Furthermore, when the pneumatic current collecting device is in operation and the rail vehicle is in the second power supply mode, the air supply control method further includes:

[0041] The pressure sensor is used to detect a second pressure value in the main air cylinder of the brake system in real time and send the second pressure value to the control module;

[0042] The control module is further configured to generate a main air cylinder air supply instruction when it is determined that the second pressure value is less than or equal to a third pressure threshold, and send the main air cylinder air supply instruction to the air supply module;

[0043] The air supply module is further configured to supply the compressed air to the brake system main air cylinder and the bow lifting air cylinder based on the main air cylinder air supply instruction through AC380V power supply;

[0044] The control module is further configured to generate a second air supply stop instruction when it is determined that the second pressure value is greater than or equal to a fourth pressure threshold, and send the second air supply stop instruction to the air supply module;

[0045] The air supply module is further used to stop the air supply to the brake system main air cylinder and the bow lifting air cylinder based on the second air supply stop instruction.

[0046] Furthermore, the air supply control system further includes a safety valve, which is connected to the main air cylinder of the brake system; and the air supply control method further includes:

[0047] When the control module determines that the second pressure value is greater than or equal to a fifth pressure threshold, the control module controls the safety valve to open.

[0048] Furthermore, the air supply control system further includes a relief valve, a first one-way valve, and a second one-way valve. The relief valve and the first one-way valve are both installed at the air outlet of the air supply module. The second one-way valve is installed between the lifting air cylinder and the brake system main air cylinder. The set pressure value of the relief valve is between the second pressure threshold and the third pressure threshold.

[0049] When the air supply module provides the compressed air to the lifting air cylinder in the first power supply mode, the compressed air enters the lifting air cylinder through the first one-way valve, and at the same time the relief valve is closed, so that the compressed air of the air supply module cannot enter the brake system main air cylinder;

[0050] When the air supply module provides the compressed air to the brake system main air cylinder and the lifting air cylinder in the second power supply mode, the relief valve is opened to allow the compressed air to enter the brake system main air cylinder through the relief valve;

[0051] When the air supply module is in the second power supply mode, after the compressed air in the lifting air cylinder is consumed, the compressed air in the brake system main air cylinder is supplemented into the lifting air cylinder through the second one-way valve.

[0052] Furthermore, the brake system master cylinder is connected to the brake system to provide the compressed air to the brake system through the brake system master cylinder.

[0053] In a third aspect, an embodiment of the present application further provides an electronic device comprising: a processor, a memory and a bus, wherein the memory stores machine-readable instructions executable by the processor. When the electronic device is running, the processor and the memory communicate via the bus, and when the machine-readable instructions are executed by the processor, the steps of the above-mentioned rail vehicle air supply control method are performed.

[0054] In a fourth aspect, an embodiment of the present application further provides a computer-readable storage medium having a computer program stored thereon, and when the computer program is executed by a processor, the steps of the above-mentioned method for controlling the air supply of a rail vehicle are executed.

[0055] The embodiments of the present application provide an air supply control system, method, device and medium for a rail vehicle, wherein the air supply control system includes a control module, an air supply module and an air cylinder module, wherein the control module and the air cylinder module are respectively connected to the air supply module, and the air cylinder module is connected to a pneumatic flow receiving device; the control module is used to generate an air supply instruction according to the pressure value collected in the air cylinder module, and send the air supply instruction to the air supply module; the air supply module is used to receive the air supply instruction, and based on the air supply instruction, provide compressed air to the air cylinder module to increase the pressure value in the air cylinder module to provide working air to the pneumatic flow receiving device or the braking system, so that the pneumatic flow receiving device or the braking system can operate normally. The present application does not require an additional auxiliary air compressor, and sends an air supply instruction to the air supply module through the control module. The air supply module supplies air to the pneumatic flow receiving device or the braking system, so that the pneumatic flow receiving device and the braking system can operate normally, thereby ensuring the normal use of the pneumatic flow receiving device and the braking system.

[0056] In order to make the above-mentioned objects, features and advantages of the present application more obvious and easy to understand, preferred embodiments are given below and described in detail with reference to the accompanying drawings. BRIEF DESCRIPTION OF THE DRAWINGS

[0057] In order to more clearly illustrate the technical solutions of the embodiments of the present application, the following is a brief introduction to the drawings required for use in the embodiments. It should be understood that the following drawings only show certain embodiments of the present application and therefore should not be regarded as limiting the scope. For ordinary technicians in this field, other relevant drawings can be obtained based on these drawings without creative work.

[0058] FIG1 is a schematic structural diagram of an air supply control system for a rail vehicle provided in an embodiment of the present application;

[0059] FIG2 is a schematic diagram of hardware connections of an air supply control system for a rail vehicle provided in an embodiment of the present application;

[0060] FIG3 is a flow chart of an air supply control method for a rail vehicle provided in an embodiment of the present application;

[0061] FIG4 is a schematic structural diagram of an electronic device provided in an embodiment of the present application. DETAILED DESCRIPTION

[0062] In order to make the purpose, technical solutions and advantages of the embodiments of the present application clearer, the technical solutions in the embodiments of the present application will be clearly and completely described below in conjunction with the drawings in the embodiments of the present application. Obviously, the described embodiments are only a part of the embodiments of the present application, rather than all of the embodiments. The components of the embodiments of the present application generally described and shown in the drawings here can be arranged and designed in various different configurations. Therefore, the following detailed description of the embodiments of the present application provided in the drawings is not intended to limit the scope of the application for which protection is claimed, but merely represents the selected embodiments of the present application. Based on the embodiments of the present application, each other embodiment obtained by those skilled in the art without making creative work falls within the scope of protection of the present application.

[0063] First, the application scenarios to which this application is applicable are introduced. This application can be applied in the field of rail transportation technology.

[0064] Currently, rail vehicles using air brakes are equipped with a main air compressor, which serves as the brake system's power source. This compressor can only operate stably and long-term when the vehicle is powered by the line. If a rail vehicle is parked for an extended period without power, the compressed air stored in the brake system leaks to a low pressure, rendering it unable to power the pneumatic current-collecting equipment required to supply the vehicle. Therefore, existing rail vehicles, in addition to the main air supply unit, also feature an auxiliary battery-powered air compressor to ensure the ability to operate the pneumatic current-collecting equipment in the event of an air brake system leak caused by prolonged power outages.

[0065] Based on this, the embodiments of the present application provide an air supply control system, method, equipment and medium for a rail vehicle, in which an air supply instruction is sent to the air supply module through the control module, and the air supply module supplies air to the pneumatic current receiving equipment or the braking system, so that the pneumatic current receiving equipment and the braking system can operate normally, thereby ensuring the normal use of the pneumatic current receiving equipment and the braking system.

[0066] Please refer to Figure 1, which is a schematic diagram of the structure of an air supply control system for a rail vehicle provided in an embodiment of the present application. As shown in Figure 1, the air supply control system 100 provided in an embodiment of the present application includes a control module 10, an air supply module 20, and an air cylinder module 30. The control module 10 and the air cylinder module 30 are respectively connected to the air supply module 20, and the pneumatic current receiving device and the braking system are respectively connected to the air cylinder module 30.

[0067] The control module 10 is used to generate an air supply instruction according to the pressure value collected in the air cylinder module, and send the air supply instruction to the air supply module 20.

[0068] It should be noted that the pressure value refers to the air pressure value of the air in the air cylinder module. The air supply instruction refers to an instruction for driving the air supply module 20 to deliver compressed air to the air cylinder module 30.

[0069] Specifically, the control module 10 is mainly used to control the air supply module 20 to provide compressed air to the air cylinder module 30. In specific implementation, the control module 10 generates an air supply instruction based on the pressure value collected in the air cylinder module and sends the air supply instruction to the air supply module 20.

[0070] The air supply module 20 is used to receive the air supply instruction and provide compressed air to the air cylinder module 30 based on the air supply instruction, so that the pressure value in the air cylinder module 30 increases to provide working air to the pneumatic flow receiving equipment and the braking system, so that the pneumatic flow receiving equipment and the braking system can operate normally.

[0071] It should be noted that the pneumatic current collecting device may be a pantograph on a rail vehicle, and this application does not make any specific limitation on this.

[0072] Specifically, the air supply module 20 is mainly used to provide compressed air to the air cylinder module 30. In specific implementation, after receiving the air supply instruction sent by the control module 10, the air supply module 20 provides compressed air to the air cylinder module 30 based on the air supply instruction, so as to increase the pressure value in the air cylinder module 30, so that the air cylinder module 30 provides working air to the pneumatic current collecting device or the brake system, so that the pneumatic current collecting device or the brake system can operate normally. Specifically, as an example, when the pneumatic current collecting device is a pantograph, the air supply module 20 can provide compressed air to the air cylinder module 30 based on the air supply instruction when the vehicle is only powered by a battery. At this time, when the pressure in the air cylinder module 30 meets the pantograph raising requirement, the pantograph can be operated to raise.

[0073] Please refer to Figure 2, which is a hardware connection diagram of a rail vehicle air supply control system provided by an embodiment of the present application. As shown in Figure 2, the air cylinder module 30 includes a bow-raising air cylinder 31 and a brake system master air cylinder 32. The air supply control system 100 also includes a pressure switch 40 and a pressure sensor 50. The bow-raising air cylinder 31 is connected to the pressure switch 40, and the brake system master air cylinder 32 is connected to the pressure sensor 50.

[0074] Here, the pantograph raising air cylinder 31 is used to store the compressed air required for raising the pantograph, and the brake system main air cylinder 32 is used to store the compressed air generated by the air compressor. All places on the rail vehicle that require compressed air must use the compressed air of the main air cylinder.

[0075] Specifically, according to the air supply control system provided in this application, as an optional embodiment, the first power supply mode refers to the rail vehicle being in a DC110V battery power supply mode. When the pneumatic current collecting device is not working and the rail vehicle is in the first power supply mode:

[0076] The pressure switch 40 is used to detect the first pressure value in the bow lifting cylinder 31 in real time and send the first pressure value to the control module 10.

[0077] Specifically, the pressure switch 40 is mainly used to detect the pressure value in the bow raising air cylinder 31. In a specific implementation, the pressure switch 40 is used to detect the first pressure value in the bow raising air cylinder 31 in real time and send the first pressure value to the control module 10.

[0078] The control module 10 is further configured to generate a bow-raising air supply instruction and send the bow-raising air supply instruction to the air supply module 20 when it determines that the first pressure value is less than or equal to a first pressure threshold and simultaneously receives a bow-raising air supply start signal.

[0079] It should be noted that the first pressure threshold refers to the pressure threshold used to determine whether the compressed air stored in the bow raising cylinder 31 meets the bow raising pressure threshold. The first pressure threshold can be set to 5 bar, which is not specifically limited in this application. The bow raising air supply start signal is generated by user control triggering.

[0080] The control module 10 issues the air supply raising command only when the user triggers the air supply raising start signal and the pressure in the air supply raising cylinder 31 is lower than the lower limit of the pressure switch 40, i.e., the first pressure threshold. In practice, after receiving the first pressure value and determining that the first pressure value is less than or equal to the first pressure threshold, the control module 10 simultaneously receives the air supply raising start signal generated by the user trigger, indicating that the air supply raising operation is required but the pressure in the air supply raising cylinder 31 is currently too low to meet the requirements. The control module then generates the air supply raising command and sends it to the air supply module 20.

[0081] The air supply module 20 is also used to supply the compressed air to the bow raising air cylinder 31 based on the bow raising air supply instruction by being powered by a DC110V battery.

[0082] In practice, after receiving the bow-raising air supply command from the control module 10, the air supply module 20 supplies compressed air to the bow-raising air cylinder 31 based on the bow-raising air supply command. At this time, the air supply module 20 operates in the DC110V power supply mode and can supply air to pneumatic current receiving equipment using only battery power, without the need for an auxiliary air compressor.

[0083] The control module 10 is further configured to generate a first air supply stop instruction and send the first air supply stop instruction to the air supply module 20 when it is determined that the first pressure value is greater than or equal to a second pressure threshold.

[0084] It should be noted that the second pressure threshold refers to the pressure threshold used to determine whether the compressed air stored in the bow lifting cylinder 31 meets the bow lifting pressure threshold. The second pressure threshold can be set to 7 bar, and this application does not make any specific limitation on this.

[0085] In specific implementation, after the control module 10 continuously receives the second pressure value detected by the pressure switch 40, when it is determined that the first pressure value is greater than or equal to the second pressure threshold, it means that the compressed air stored in the bow lifting cylinder 31 at this time meets the bow lifting requirements, and then a first stop air supply instruction is generated, and the first stop air supply instruction is sent to the air supply module 20.

[0086] The air supply module 20 is further configured to stop supplying air to the bow raising air cylinder 31 based on the first air supply stop instruction.

[0087] In practice, upon receiving the first stop air supply command from the control module, the air supply module 20 stops supplying air to the pantograph raising cylinder 31 based on the first stop air supply command. At this point, the compressed air stored in the pantograph raising cylinder 31 meets the pantograph raising requirements, allowing operators to raise the pantograph of the rail vehicle.

[0088] When the pantograph is raised, the rail vehicle is in the second power supply mode, i.e., the AC380V power supply mode. As an optional embodiment, when the pneumatic current collecting device is working, the rail vehicle is in the second power supply mode:

[0089] The pressure sensor 50 is used to detect a second pressure value in the brake system master cylinder 32 in real time and send the second pressure value to the control module 10 .

[0090] The control module 10 is further configured to generate a main air cylinder air supply instruction and send the main air cylinder air supply instruction to the air supply module 20 when it is determined that the second pressure value is less than or equal to a third pressure threshold.

[0091] The air supply module 20 is also used to supply the compressed air to the brake system main air cylinder 32 and the bow lifting air cylinder 31 based on the main air cylinder air supply instruction through AC380V power supply.

[0092] It should be noted that the third pressure threshold refers to the pressure threshold used to determine whether compressed air needs to be delivered to the brake system main air cylinder 32. Here, the third pressure threshold can be set to 8 bar, and this application does not make any specific limitation on this.

[0093] In specific implementations, when the pneumatic current receiving device is operating, the pressure sensor 50 detects the second pressure value within the brake system's main air cylinder 32 in real time and sends the second pressure value to the control module 10. When the control module 10 determines that the second pressure value is less than or equal to the third pressure threshold, it generates a main air cylinder air supply command and sends the main air cylinder air supply command to the air supply module 20. Based on the main air cylinder air supply command, the air supply module 20 supplies compressed air to the brake system's main air cylinder 32 and the bow-lifting air cylinder 31. At this point, the air supply module 20 is operating in the AC380V power supply mode.

[0094] The control module 10 is further configured to generate a second air supply stop instruction when it is determined that the second pressure value is greater than or equal to a fourth pressure threshold, and send the second air supply stop instruction to the air supply module 20 .

[0095] The air supply module 20 is further configured to stop supplying air to the brake system master air cylinder 32 and the bow lifting air cylinder 31 based on the second air supply stop instruction.

[0096] It should be noted that the fourth pressure threshold refers to the pressure threshold used to determine whether the compressed air stored in the brake system main air cylinder 32 is sufficient. Here, the fourth pressure threshold can be set to 9.5 bar, and this application does not make any specific limitation on this.

[0097] In specific implementations, when the air supply module 20 delivers compressed air to the brake system main air cylinder 32, the pressure sensor 50 sends a second pressure value of the brake system main air cylinder 32 to the control module 10 in real time. When the control module 10 determines that the second pressure value is greater than or equal to the fourth pressure threshold, indicating that the compressed air stored in the brake system main air cylinder 32 is sufficient, the control module 10 generates a second stop air supply instruction and sends the second stop air supply instruction to the air supply module 20. Based on the second stop air supply instruction, the air supply module 20 stops supplying air to the brake system main air cylinder 32 and the lifting air cylinder 31.

[0098] As shown in FIG. 2 , the air supply control system 100 further includes a safety valve 60 , which is connected to the brake system main air cylinder 32 .

[0099] The control module 10 is further configured to control the safety valve 60 to open when it is determined that the second pressure value is greater than or equal to a fifth pressure threshold.

[0100] It should be noted that the fifth pressure threshold refers to the pressure threshold used to determine whether the pressure value in the brake system main air cylinder 32 is excessive. Here, the fifth pressure threshold can be appropriately 10.5abr, and this application does not impose a specific limitation on this. Here, the safety valve 60 is mainly used to protect the pressure in the brake system main air cylinder 32 from exceeding the fifth pressure threshold.

[0101] In a specific implementation, when the control module 10 determines that the second pressure value in the brake system master cylinder 32 is greater than or equal to the fifth pressure threshold, the safety valve 60 is controlled to open to protect the safety of the brake system.

[0102] As shown in Figure 2, the air supply control system also includes a relief valve 70, a first one-way valve 80 and a second one-way valve 81. The relief valve 70 and the first one-way valve 80 are both installed at the air outlet of the air supply module 20. The second one-way valve 81 is installed between the lifting air cylinder 31 and the braking system main air cylinder 32. The set pressure value of the relief valve 70 is between the second pressure threshold and the third pressure threshold.

[0103] When the air supply module 20 supplies compressed air to the lifting air cylinder 31 in the first power supply mode, the compressed air enters the lifting air cylinder 31 through the first one-way valve 80. At the same time, the pressure setting value of the relief valve 70 is higher than the second pressure threshold set by the pressure switch 40. Therefore, in this mode, the relief valve 70 is closed, and the compressed air from the air supply module 20 cannot enter the brake system main air cylinder 32. The second one-way valve 81 prevents the compressed air in the lifting air cylinder 31 from flowing into the brake system main air cylinder 32.

[0104] When the air supply module 20 provides compressed air to the brake system main air cylinder 32 and the lifting air cylinder 31 in the second power supply mode, the relief valve 70 is in an open state, and the compressed air enters the brake system main air cylinder 32 through the relief valve 70 .

[0105] When the air supply module 20 is in the second power supply mode, after the compressed air in the lifting air cylinder 31 is consumed, the compressed air in the brake system main air cylinder 32 is replenished into the lifting air cylinder 31 through the second one-way valve 81 .

[0106] Please refer to Figure 2. In the air supply control system provided in the embodiment of the present application, the brake system main air cylinder 32 is also connected to the brake system to provide compressed air to the brake system through the brake system main air cylinder 32.

[0107] According to the rail vehicle air supply control system provided in an embodiment of the present application, as shown in FIG2 , when the pantograph of a rail vehicle is lowered and the rail vehicle is operating without AC power, the control module 10 sends a pantograph-raising air supply command to the air supply module 20. The air supply module 20 is powered by a DC 110V battery and starts operating. Compressed air flows through the first check valve 80 into the pantograph-raising air cylinder 31. When the pressure reaches the set value of the pressure switch 40, the pressure switch 40 feeds back to the control module 10, which generates a first air supply stop command. Upon receiving this signal, the air supply module 20 stops operating. At this point, the pressure in the pantograph-raising air cylinder 31 meets the pantograph raising requirement, allowing the driver to raise the pantograph. The set value of the relief valve 70 is higher than the set value of the pressure switch 40, so in this mode, the relief valve 70 is closed, preventing compressed air from the air supply module 20 from entering the brake system main air cylinder 32. The second check valve 81 prevents compressed air from the pantograph-raising air cylinder 31 from flowing into the brake system main air cylinder 32. When the pantograph of the rail vehicle is raised and the vehicle is in AC power working condition, the air supply module 20 is in AC380V power supply working mode. The pressure sensor 50 detects the pressure of the brake system main air cylinder 32 in real time. When it is detected that the pressure of the main air cylinder is lower than the set value, the control module 10 generates a main air cylinder air supply instruction to the air supply module 20 according to the detection value of the pressure sensor 50. The air supply module 20 starts and the compressed air enters the brake system main air cylinder 32 through the overflow valve 70. When the pressure value of the brake system main air cylinder 32 is higher than the set value, the control module 10 generates a second stop air supply instruction to the air supply module 20 according to the detection value of the pressure sensor 50, and the air supply module 20 stops working. The safety valve 60 is used to protect the pressure value of the brake system main air cylinder 32 from exceeding the safety value to protect the safety of the brake system.

[0108] The air supply control system for rail vehicles provided in the embodiment of the present application includes a control module, an air supply module and an air cylinder module, wherein the control module and the air cylinder module are respectively connected to the air supply module, and the air cylinder module is connected to the pneumatic flow receiving device; the control module is used to generate an air supply instruction according to the pressure value collected in the air cylinder module, and send the air supply instruction to the air supply module; the air supply module is used to receive the air supply instruction, and based on the air supply instruction, provide compressed air to the air cylinder module to increase the pressure value in the air cylinder module to provide working air to the pneumatic flow receiving device or the braking system, so that the pneumatic flow receiving device or the braking system can work normally. The present application does not need to set up an additional auxiliary air compressor, and sends an air supply instruction to the air supply module through the control module. The air supply module supplies air to the pneumatic flow receiving device or the braking system, so that the pneumatic flow receiving device and the braking system can work normally, thereby ensuring the normal use of the pneumatic flow receiving device and the braking system.

[0109] Please refer to Figure 3, which is a flow chart of a method for controlling air supply for a rail vehicle provided in an embodiment of the present application. As shown in Figure 3, the method for controlling air supply applies a rail vehicle air supply control system, which includes a control module, an air supply module, and an air cylinder module. The control module and the air cylinder module are respectively connected to the air supply module, and the pneumatic current receiving device and the braking system are respectively connected to the air cylinder module. The method for controlling air supply includes:

[0110] S301, the control module generates an air supply instruction according to the pressure value collected in the air cylinder module, and sends the air supply instruction to the air supply module.

[0111] S302, the air supply module receives the air supply instruction, and provides compressed air to the air cylinder module based on the air supply instruction, so that the pressure value in the air cylinder module increases to provide working air to the pneumatic flow receiving equipment and the braking system, so that the pneumatic flow receiving equipment and the braking system work normally.

[0112] In steps S301 and S302 above, when the rail vehicle loses AC power and the pneumatic current collecting device needs to operate, the control module generates an air supply command based on the pressure value collected within the air cylinder module and sends this command to the air supply module. Upon receiving the air supply command from the control module, the air supply module supplies compressed air to the air cylinder module based on the command, increasing the pressure within the air cylinder module and providing operating air to the pneumatic current collecting device and the braking system, enabling them to operate normally.

[0113] Furthermore, the air cylinder module includes a bow-raising air cylinder and a brake system main air cylinder, and the air supply control system further includes a pressure switch and a pressure sensor. The bow-raising air cylinder is connected to the pressure switch, and the brake system main air cylinder is connected to the pressure sensor. When the pneumatic current receiving device is not working and the rail vehicle is in the first power supply mode, the air supply control method further includes:

[0114] A: The pressure switch detects the first pressure value in the bow-lifting air cylinder in real time and sends the first pressure value to the control module;

[0115] B: When the control module determines that the first pressure value is less than or equal to the first pressure threshold and simultaneously receives a pan-raising air supply start signal, it generates a pan-raising air supply instruction and sends the pan-raising air supply instruction to the air supply module;

[0116] C: The air supply module is powered by a DC110V battery and provides the compressed air to the bow raising air cylinder based on the bow raising air supply instruction;

[0117] D: When the control module determines that the first pressure value is greater than or equal to the second pressure threshold, the control module generates a first air supply stop instruction and sends the first air supply stop instruction to the air supply module;

[0118] E: The air supply module stops supplying air to the lifting air cylinder based on the first air supply stop instruction.

[0119] In the above steps A to E, the pressure switch detects the first pressure value in the bow-lifting air cylinder in real time. When the control module determines that the first pressure value is less than or equal to the first pressure threshold, and receives the bow-lifting air supply start signal at the same time, it means that the current pressure in the bow-lifting air cylinder is too low to meet the bow-lifting, and then generates a bow-lifting air supply instruction, and sends the bow-lifting air supply instruction to the air supply module. The air supply module provides compressed air to the bow-lifting air cylinder based on the bow-lifting air supply instruction. The pressure switch detects the first pressure value in the bow-lifting air cylinder. When the control module determines that the first pressure value is greater than or equal to the second pressure threshold, it means that the compressed air stored in the bow-lifting air cylinder at this time meets the bow-lifting requirement, and then generates a first stop air supply instruction, and sends the first stop air supply instruction to the air supply module. The air supply module stops supplying air to the bow-lifting air cylinder based on the first stop air supply instruction.

[0120] Furthermore, when the pneumatic current collecting device is in operation and the rail vehicle is in the second power supply mode, the air supply control method further includes:

[0121] i: the pressure sensor is used to detect a second pressure value in the main air cylinder of the braking system in real time and send the second pressure value to the control module;

[0122] ii: the control module is further configured to generate a main air cylinder air supply instruction when it is determined that the second pressure value is less than or equal to a third pressure threshold, and send the main air cylinder air supply instruction to the air supply module;

[0123] iii: The air supply module is further configured to be powered by AC380V and to provide the compressed air to the brake system main air cylinder and the bow lifting air cylinder based on the main air cylinder air supply instruction;

[0124] iv: the control module is further configured to generate a second air supply stop instruction when it is determined that the second pressure value is greater than or equal to a fourth pressure threshold, and send the second air supply stop instruction to the air supply module;

[0125] v: The air supply module is further used to stop the air supply to the brake system main air cylinder and the bow lifting air cylinder based on the second air supply stop instruction.

[0126] In the above steps i to v, when the pneumatic flow receiving device is working, the pressure sensor detects the second pressure value in the brake system main air cylinder in real time. When the control module determines that the second pressure value is less than or equal to the third pressure threshold, it generates a main air cylinder air supply instruction and sends the main air cylinder air supply instruction to the air supply module. The air supply module supplies compressed air to the brake system main air cylinder and the bow lifting air cylinder based on the main air cylinder air supply instruction. When the air supply module delivers compressed air to the brake system main air cylinder and the bow lifting air cylinder, the pressure sensor sends the second pressure value of the brake system main air cylinder to the control module in real time. When the control module determines that the second pressure value is greater than or equal to the fourth pressure threshold, it means that the compressed air stored in the brake system main air cylinder is sufficient at this time. The control module generates a second stop air supply instruction and sends the second stop air supply instruction to the air supply module. The air supply module stops supplying air to the brake system main air cylinder and the bow lifting air cylinder based on the second stop air supply instruction.

[0127] Furthermore, the air supply control system further includes a safety valve, which is connected to the main air cylinder of the brake system; and the air supply control method further includes:

[0128] When the control module determines that the second pressure value is greater than or equal to a fifth pressure threshold, the control module controls the safety valve to open.

[0129] With respect to the above steps, when the control module determines that the second pressure value in the brake system's main air cylinder is greater than or equal to the fifth pressure threshold, the control safety valve is controlled to open to protect the brake system's safety.

[0130] Furthermore, the air supply control system further includes a relief valve, a first one-way valve, and a second one-way valve. The relief valve and the first one-way valve are both installed at the air outlet of the air supply module. The second one-way valve is installed between the lifting air cylinder and the brake system main air cylinder. The set pressure value of the relief valve is between the second pressure threshold and the third pressure threshold.

[0131] When the air supply module provides the compressed air to the lifting air cylinder in the first power supply mode, the compressed air enters the lifting air cylinder through the first one-way valve, and at the same time the relief valve is closed, so that the compressed air of the air supply module cannot enter the brake system main air cylinder;

[0132] When the air supply module provides the compressed air to the brake system main air cylinder and the lifting air cylinder in the second power supply mode, the relief valve is opened to allow the compressed air to enter the brake system main air cylinder through the relief valve;

[0133] When the air supply module is in the second power supply mode, after the compressed air in the lifting air cylinder is consumed, the compressed air in the brake system main air cylinder is supplemented into the lifting air cylinder through the second one-way valve.

[0134] Furthermore, the brake system master cylinder is connected to the brake system to provide the compressed air to the brake system through the brake system master cylinder.

[0135] According to the air supply control method for rail vehicles provided in the embodiment of the present application, there is no need to additionally set up an auxiliary air compressor. The air supply instruction is sent to the air supply module through the control module, and the air supply module supplies air to the pneumatic current receiving equipment or the braking system, so that the pneumatic current receiving equipment and the braking system can work normally, ensuring the normal use of the pneumatic current receiving equipment and the braking system.

[0136] Please refer to Figure 4 , which is a schematic diagram of the structure of an electronic device provided in an embodiment of the present application. As shown in Figure 4 , the electronic device 400 includes a processor 410 , a memory 420 , and a bus 430 .

[0137] The memory 420 stores machine-readable instructions executable by the processor 410. When the electronic device 400 is running, the processor 410 communicates with the memory 420 through the bus 430. When the machine-readable instructions are executed by the processor 410, the steps of the rail vehicle air supply control method in the method embodiment shown in Figure 3 above can be executed. The specific implementation method can be found in the method embodiment and will not be repeated here.

[0138] An embodiment of the present application also provides a computer-readable storage medium, on which a computer program is stored. When the computer program is run by a processor, it can execute the steps of the rail vehicle air supply control method in the method embodiment shown in Figure 3 above. The specific implementation method can be found in the method embodiment and will not be repeated here.

[0139] Those skilled in the art will clearly understand that, for the convenience and brevity of description, the specific working processes of the systems, devices and units described above can refer to the corresponding processes in the aforementioned method embodiments and will not be repeated here.

[0140] In the several embodiments provided in this application, it should be understood that the disclosed systems, devices and methods can be implemented in other ways. The device embodiments described above are merely schematic. For example, the division of the units is merely a logical function division. There may be other division methods in actual implementation. For example, multiple units or components may be combined or integrated into another system, or some features may be ignored or not executed. Another point is that the mutual coupling or direct coupling or communication connection shown or discussed may be through some communication interface, indirect coupling or communication connection of devices or units, which may be electrical, mechanical or other forms.

[0141] The units described as separate components may or may not be physically separate, and the components shown as units may or may not be physical units, that is, they may be located in one place or distributed across multiple network units. Some or all of these units may be selected to achieve the purpose of this embodiment according to actual needs.

[0142] In addition, each functional unit in each embodiment of the present application may be integrated into one processing unit, or each unit may exist physically separately, or two or more units may be integrated into one unit.

[0143] If the functions are implemented in the form of software functional units and sold or used as independent products, they can be stored in a non-volatile computer-readable storage medium that is executable by a processor. Based on this understanding, the technical solution of the present application, or the part that contributes to the prior art, or the part of the technical solution, can be embodied in the form of a software product. The computer software product is stored in a storage medium and includes several instructions for enabling a computer device (which can be a personal computer, server, or network device, etc.) to execute all or part of the steps of the method described in each embodiment of the present application. The aforementioned storage medium includes: U disk, mobile hard disk, read-only memory (ROM), random access memory (RAM), magnetic disk or optical disk, and other media that can store program codes.

[0144] It should be noted that similar numbers and letters represent similar items in the following figures. Therefore, once an item is defined in one figure, it does not need to be further defined and explained in subsequent figures. In addition, the terms "first", "second", "third", etc. are only used to distinguish the description and are not to be understood as indicating or implying relative importance.

[0145] Finally, it should be noted that the above-described embodiments are only specific implementation methods of the present application, which are used to illustrate the technical solutions of the present application, rather than to limit them. The scope of protection of the present application is not limited thereto. Although the present application has been described in detail with reference to the above-mentioned embodiments, those skilled in the art should understand that any person skilled in the art can modify or easily conceive of changes to the technical solutions described in the above-mentioned embodiments within the technical scope disclosed in the present application, or perform equivalent replacements for some of the technical features thereof. These modifications, changes, or replacements do not deviate from the spirit and scope of the technical solutions of the embodiments of the present application, and should be included in the scope of protection of the present application. Therefore, the scope of protection of the present application should be based on the scope of protection of the claims.

Claims

1. A rail vehicle air supply control system, characterized in that: The air supply control system comprises a control module, an air supply module and an air cylinder module, wherein the control module and the air cylinder module are respectively connected to the air supply module, and the pneumatic current receiving device and the braking system are respectively connected to the air cylinder module; The control module is used to generate an air supply instruction according to the pressure value collected in the air cylinder module, and send the air supply instruction to the air supply module; The air supply module is used to receive the air supply instruction and provide compressed air to the air cylinder module based on the air supply instruction, so that the pressure value in the air cylinder module increases to provide working air to the pneumatic current receiving device and the braking system, so that the pneumatic current receiving device and the braking system can work normally.

2. The air supply control system according to claim 1, characterized in that: The air cylinder module includes a bow raising air cylinder and a brake system main air cylinder, and the air supply control system also includes a pressure switch and a pressure sensor, the bow raising air cylinder is connected to the pressure switch, and the brake system main air cylinder is connected to the pressure sensor; When the pneumatic current collecting device is not working and the rail vehicle is in the first power supply mode: The pressure switch is used to detect the first pressure value in the bow lifting air cylinder in real time and send the first pressure value to the control module; The control module is further configured to generate a bow raising air supply instruction and send the bow raising air supply instruction to the air supply module when it is determined that the first pressure value is less than or equal to a first pressure threshold and a bow raising air supply start signal is received at the same time; The air supply module is also used to supply the compressed air to the bow raising air cylinder based on the bow raising air supply instruction by being powered by a DC110V battery; The control module is further configured to generate a first air supply stop instruction when it is determined that the first pressure value is greater than or equal to a second pressure threshold, and send the first air supply stop instruction to the air supply module; The air supply module is further used to stop the air supply to the bow lifting air cylinder based on the first air supply stop instruction.

3. The air supply control system according to claim 2, characterized in that: When the pneumatic current collecting device is working and the rail vehicle is in the second power supply mode: The pressure sensor is used to detect the second pressure value in the main air cylinder of the brake system in real time and send the second pressure value to the control module; The control module is further configured to generate a main air cylinder air supply instruction when it is determined that the second pressure value is less than or equal to a third pressure threshold, and send the main air cylinder air supply instruction to the air supply module; The air supply module is also used to supply the compressed air to the brake system main air cylinder and the bow lifting air cylinder based on the main air cylinder air supply instruction through AC380V power supply; The control module is further configured to generate a second air supply stop instruction when it is determined that the second pressure value is greater than or equal to a fourth pressure threshold, and send the second air supply stop instruction to the air supply module; The air supply module is further used to stop the air supply to the brake system main air cylinder and the bow lifting air cylinder based on the second air supply stop instruction.

4. The air supply control system according to claim 3, characterized in that: The air supply control system further comprises a safety valve, which is connected to the main air cylinder of the brake system; The control module is further configured to control the safety valve to open when it is determined that the second pressure value is greater than or equal to a fifth pressure threshold.

5. The air supply control system according to claim 3, characterized in that: The air supply control system further comprises a relief valve, a first one-way valve and a second one-way valve, wherein the relief valve and the first one-way valve are both installed at the air outlet of the air supply module, the second one-way valve is installed between the bow raising air cylinder and the brake system main air cylinder, and the set pressure value of the relief valve is between the second pressure threshold and the third pressure threshold; When the air supply module provides the compressed air to the lifting air cylinder in the first power supply mode, the compressed air enters the lifting air cylinder through the first one-way valve, and the overflow valve is closed at the same time, so that the compressed air of the air supply module cannot enter the brake system main air cylinder; When the air supply module provides the compressed air to the brake system main air cylinder and the lifting air cylinder in the second power supply mode, the relief valve is opened to allow the compressed air to enter the brake system main air cylinder through the relief valve; When the air supply module is in the second power supply mode, after the compressed air in the lifting air cylinder is consumed, the compressed air in the brake system main air cylinder is supplemented into the lifting air cylinder through the second one-way valve.

6. The air supply control system according to claim 2, characterized in that: The brake system master cylinder is connected to the brake system so as to provide the compressed air to the brake system through the brake system master cylinder.

7. A method for controlling air supply of a rail vehicle, characterized in that: The air supply control method is applied to an air supply control system of a rail vehicle as claimed in any one of claims 1 to 6, wherein the air supply control system comprises a control module, an air supply module and an air cylinder module, wherein the control module and the air cylinder module are respectively connected to the air supply module, and the pneumatic current receiving device and the braking system are respectively connected to the air cylinder module, and the air supply control method comprises: The control module generates an air supply instruction according to the pressure value collected in the air cylinder module, and sends the air supply instruction to the air supply module; The air supply module receives the air supply instruction, and provides compressed air to the air cylinder module based on the air supply instruction, so that the pressure value in the air cylinder module increases to provide working air to the pneumatic current receiving device and the braking system, so that the pneumatic current receiving device and the braking system can operate normally.

8. The air supply control method according to claim 7, characterized in that: The air cylinder module includes a bow raising air cylinder and a brake system main air cylinder, and the air supply control system also includes a pressure switch and a pressure sensor, the bow raising air cylinder is connected to the pressure switch, and the brake system main air cylinder is connected to the pressure sensor; When the pneumatic current collecting device is not working and the rail vehicle is in the first power supply mode, the air supply control method further includes: The pressure switch detects a first pressure value in the bow lifting air cylinder in real time, and sends the first pressure value to the control module; When the control module determines that the first pressure value is less than or equal to the first pressure threshold and simultaneously receives a bow raising air supply start signal, it generates an auxiliary bow raising air supply instruction and sends the auxiliary bow raising air supply instruction to the air supply module; The air supply module is powered by a DC110V battery and provides the compressed air to the bow raising air cylinder based on the auxiliary bow raising air supply instruction; When the control module determines that the first pressure value is greater than or equal to the second pressure threshold, the control module generates a first air supply stop instruction and sends the first air supply stop instruction to the air supply module; The air supply module stops supplying air to the lifting air cylinder based on the first air supply stop instruction.

9. An electronic device, characterized in that: include: A processor, a memory and a bus, wherein the memory stores machine-readable instructions executable by the processor, and when the electronic device is running, the processor and the memory communicate through the bus, and the machine-readable instructions are executed by the processor to execute the steps of the air supply control method for a rail vehicle as described in any one of claims 7 to 8.

10. A computer-readable storage medium, characterized in that: The computer-readable storage medium stores a computer program, and when the computer program is executed by a processor, the steps of the air supply control method for a rail vehicle as described in any one of claims 7 to 8 are executed.

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