Hydrogen energy locomotive ventilation system, control method and device and related equipment

Abstract

This disclosure provides a ventilation system, control method, device, and related equipment for hydrogen-powered locomotives, relating to the field of hydrogen-powered locomotive technology. The ventilation system includes: a ventilation device for ventilating the hydrogen storage compartment of the hydrogen-powered locomotive; a time-delay switch circuit connected between a first power supply circuit of the hydrogen-powered locomotive and a second power supply circuit of the ventilation device, used to switch from an open state to a closed state when the first power supply circuit is on, and then switch back to an open state after a preset duration, wherein the second power supply circuit is on when the time-delay switch circuit is on; and a control device connected to the second power supply circuit, used to control the second power supply circuit to be on or off after the time-delay switch circuit switches from a closed state to an open state. This disclosure, through the proposed ventilation system, reduces the risks and hazards caused by hydrogen leakage in hydrogen-powered locomotives, providing a reliable guarantee for the safe operation of hydrogen-powered locomotives.

Description

Technical Field

[0001] This disclosure relates to the field of hydrogen-powered locomotive technology, and in particular to a ventilation system, control method, device and related equipment for a hydrogen-powered locomotive. Background Technology

[0002] With increasing energy diversification and environmental protection efforts, hydrogen energy, as a clean and renewable energy source, is finding growing applications in the transportation sector. Particularly in locomotives and other heavy-duty transport vehicles, hydrogen fuel cell technology is considered a promising alternative to traditional fossil fuels. However, the inherent characteristics of hydrogen, such as its low density, high permeability, and flammability, present a series of challenges for its storage and use.

[0003] In hydrogen-powered locomotives, the safety management of the hydrogen storage area is particularly important. Hydrogen leaks not only waste energy but can also cause fires and explosions. Therefore, providing an effective ventilation system is crucial for maintaining the safety of hydrogen-powered locomotives.

[0004] It should be noted that the information disclosed in the background section above is only used to enhance the understanding of the background of this disclosure, and therefore may include information that does not constitute prior art known to those skilled in the art. Summary of the Invention

[0005] This disclosure provides a ventilation system, control method, device, and related equipment for hydrogen-powered locomotives, which at least partially addresses safety issues caused by hydrogen leakage in hydrogen-powered locomotives.

[0006] Other features and advantages of this disclosure will become apparent from the following detailed description, or may be learned in part from practice of this disclosure.

[0007] According to one aspect of this disclosure, a ventilation system for a hydrogen-powered locomotive is provided, comprising: a ventilation device for ventilating the hydrogen storage compartment of the hydrogen-powered locomotive;

[0008] The time-delay switch circuit is connected between the first power supply circuit of the hydrogen-powered locomotive and the second power supply circuit of the ventilation device. It is used to switch from the open state to the closed state when the first power supply circuit is on, and after a preset time, it switches back to the open state. When the time-delay switch circuit is in the open state, the second power supply circuit is in the open state, and when the time-delay switch circuit is in the on state, the second power supply circuit is in the on state.

[0009] The control device, connected to the second power supply circuit, is used to control the second power supply circuit to be in a conducting or disconnected state after the time delay switch circuit switches from a closed state to an open state.

[0010] In some embodiments, the above-described time-delay switching circuit includes: a first relay and a second relay;

[0011] The first relay is connected between the first power supply circuit and the second relay;

[0012] The second relay is connected between the second power supply circuit and the ventilation device;

[0013] The first relay is used to switch from an off state to an on state when the first power supply circuit is turned on, so as to trigger the second relay to switch from an off state to an on state.

[0014] In some embodiments, the first relay includes: a first relay coil component and a first relay contact switch; the second relay includes: a second relay coil component and a second relay contact switch;

[0015] The first end of the first relay coil component is connected to the positive terminal of the first power supply circuit, and the second end of the first relay coil component is connected to the negative terminal of the first power supply circuit.

[0016] The first terminal of the first relay contact switch is connected to the positive terminal of the first power supply circuit, and the second terminal of the first relay contact switch is connected to the first terminal of the second relay coil component.

[0017] The second end of the second relay coil component is connected to the negative terminal of the first power supply circuit;

[0018] The second relay contact switch is connected between the second power supply circuit and the ventilation device.

[0019] In some embodiments, the first power supply circuit provides direct current, and the second power supply circuit includes a first ventilation power supply circuit, which includes a power conversion module for converting the direct current provided by the first power supply circuit into alternating current to power the ventilation device.

[0020] In some embodiments, the second power supply circuit further includes: a second ventilation power supply circuit that provides alternating current and is connected to the ventilation device for supplying power to the ventilation device.

[0021] In some embodiments, the ventilation system of the hydrogen-powered locomotive further includes: a manual switch connected to a control device;

[0022] The control device is also used to: monitor the on / off state of the manual switch; when the manual switch is detected to be in the closed state, monitor whether the power supply state of the second ventilation power supply circuit is normal; if the power supply state of the second ventilation power supply circuit is normal, control the second ventilation power supply circuit to supply power to the ventilation device; if the power supply state of the second ventilation power supply circuit is abnormal, control the first ventilation power supply circuit to supply power to the ventilation device.

[0023] In some embodiments, the ventilation system of the hydrogen-powered locomotive further includes a control circuit, which is connected to a control device, and the control circuit includes a third relay, a fourth relay, and a fifth relay.

[0024] The third relay is connected to the control device and is used to control the fourth relay to make the second ventilation power supply circuit in the conducting state when the manual switch is in the closed state and the power supply status of the second ventilation power supply circuit is normal.

[0025] The fifth relay is connected to the control device and is used to control the conduction of the second relay to make the first ventilation power supply circuit conduct when the manual switch is in the closed state and the power supply status of the second ventilation power supply circuit is abnormal.

[0026] In some embodiments, the third relay includes a third relay coil component and a third relay contact switch corresponding to the third relay coil component; the fourth relay includes a fourth relay coil component and a fourth relay contact switch corresponding to the fourth relay coil component; and the fifth relay includes a fifth relay coil component and a fifth relay contact switch corresponding to the fifth relay coil component.

[0027] The first terminal of the manual switch is connected to the positive terminal of the first power supply circuit, and the second terminal of the manual switch is connected to the control device;

[0028] The first end of the third relay coil component is connected to the control device, and the second end of the third relay coil component is connected to the negative terminal of the first power supply circuit.

[0029] The first end of the third relay contact switch is connected to the positive terminal of the first power supply circuit, the second end of the third relay contact switch is connected to the first end of the fourth relay coil component, the second end of the fourth relay coil component is connected to the negative terminal of the first power supply circuit, and the first and second ends of the fourth relay contact switch are respectively connected to the ventilation device and the second ventilation power supply circuit.

[0030] The first end of the fifth relay coil component is connected to the control device, and the second end of the fifth relay coil component is connected to the negative terminal of the first power supply circuit;

[0031] The first terminal of the fifth relay contact switch is connected to the positive terminal of the first power supply circuit, and the second terminal of the fifth relay contact switch is connected to the second terminal of the first relay contact switch, the power conversion module, and the first terminal of the second relay coil component.

[0032] In some embodiments, the ventilation system of the hydrogen-powered locomotive further includes: a hydrogen concentration measurement module connected to the control device, used to measure the hydrogen concentration value in the hydrogen storage room and transmit the hydrogen concentration value to the control device;

[0033] The control device is also used for:

[0034] Monitor the hydrogen concentration in the hydrogen storage room;

[0035] When the hydrogen concentration is detected to be higher than the preset concentration, the control device is also used to monitor the power supply status of the second ventilation power supply circuit.

[0036] When the power supply status of the second ventilation power supply circuit is normal, the control device is used to control the second ventilation power supply circuit to be in the conducting state.

[0037] When the power supply status of the second ventilation power supply circuit is abnormal, the control device is used to control the first ventilation power supply circuit to be in the conducting state.

[0038] According to another aspect of this disclosure, a ventilation control method for a hydrogen-powered locomotive is also provided for controlling the aforementioned ventilation system of the hydrogen-powered locomotive, comprising: monitoring the power-on signal of the hydrogen-powered locomotive, wherein the power-on signal is a signal emitted when the first power supply circuit of the hydrogen-powered locomotive is turned on; when the power-on signal of the hydrogen-powered locomotive is detected, controlling a time-delay switch circuit to switch from an open state to a closed state, and after a preset duration, switching back to an open state; and after the time-delay switch circuit switches from a closed state to an open state, controlling a second power supply circuit to be in an on or off state.

[0039] According to another aspect of this disclosure, a ventilation control device for a hydrogen-powered locomotive is also provided, comprising: a power-on signal monitoring module for monitoring the power-on signal of the hydrogen-powered locomotive, wherein the power-on signal is a signal emitted when the first power supply circuit of the hydrogen-powered locomotive is turned on; a time-delay switch module for controlling the time-delay switch circuit to switch from an open state to a closed state when the power-on signal of the hydrogen-powered locomotive is detected, and then switching it back to an open state after a preset duration; and a control module for controlling the second power supply circuit to be in an on or off state after the time-delay switch circuit switches from a closed state to an open state.

[0040] According to another aspect of this disclosure, an electronic device is also provided, comprising: a processor; and a memory for storing executable instructions of the processor; wherein the processor is configured to perform the hydrogen fuel cell vehicle ventilation control method described in any one of the preceding claims by executing the executable instructions.

[0041] According to another aspect of this disclosure, a computer-readable storage medium is also provided, on which a computer program is stored, which, when executed by a processor, implements the hydrogen fuel cell locomotive ventilation control method described in any of the preceding claims.

[0042] According to another aspect of this disclosure, a computer program product is also provided, including a computer program that, when executed by a processor, implements the ventilation control method for hydrogen-powered locomotives described above.

[0043] The hydrogen fuel cell locomotive ventilation system, control method, device, and related equipment provided in the embodiments of this disclosure utilize a time-delay switch circuit between the first power supply circuit of the hydrogen fuel cell locomotive and the second power supply circuit of the ventilation device (a device for ventilating the hydrogen storage compartment on the hydrogen fuel cell locomotive). This time-delay switch circuit remains closed for a short period only when the first power supply circuit is initially conducting, ensuring that the second power supply circuit of the ventilation device remains powered on during locomotive power-up. This achieves automatic ventilation of the hydrogen storage compartment when the locomotive starts. After the time-delay switch circuit returns to its open state, the control device controls the second power supply circuit of the ventilation device to be either on or off, thereby controlling the start and stop of the ventilation device. In this embodiment, the ventilation device can be controlled to ventilate the hydrogen storage compartment during both locomotive power-up and locomotive operation, reducing the risk of hydrogen leakage, minimizing potential safety accidents, and effectively improving the system's safety, stability, and automation level, providing a reliable guarantee for the safe operation of the hydrogen fuel cell locomotive.

[0044] It should be understood that the above general description and the following detailed description are exemplary and explanatory only, and are not intended to limit this disclosure. Attached Figure Description

[0045] The accompanying drawings, which are incorporated in and form part of this specification, illustrate embodiments consistent with this disclosure and, together with the description, serve to explain the principles of this disclosure. It is obvious that the drawings described below are merely some embodiments of this disclosure, and those skilled in the art can obtain other drawings based on these drawings without any inventive effort.

[0046] Figure 1 This diagram illustrates a ventilation system for a hydrogen-powered locomotive according to an embodiment of the present disclosure.

[0047] Figure 2 This diagram illustrates yet another hydrogen-powered locomotive ventilation system according to an embodiment of the present disclosure;

[0048] Figure 3 This diagram illustrates yet another hydrogen-powered locomotive ventilation system according to an embodiment of the present disclosure;

[0049] Figure 4 This diagram illustrates yet another hydrogen-powered locomotive ventilation system according to an embodiment of the present disclosure;

[0050] Figure 5This diagram illustrates yet another hydrogen-powered locomotive ventilation system according to an embodiment of the present disclosure;

[0051] Figure 6 This diagram illustrates yet another hydrogen-powered locomotive ventilation system according to an embodiment of the present disclosure;

[0052] Figure 7 This diagram illustrates an example of a hydrogen-powered locomotive ventilation system according to an embodiment of the present disclosure.

[0053] Figure 8 This diagram illustrates a ventilation control method for a hydrogen-powered locomotive according to an embodiment of the present disclosure.

[0054] Figure 9 This diagram illustrates a ventilation control device for a hydrogen-powered locomotive according to an embodiment of the present disclosure.

[0055] Figure 10 A structural block diagram of an electronic device according to an embodiment of the present disclosure is shown. Detailed Implementation

[0056] Exemplary embodiments will now be described more fully with reference to the accompanying drawings. However, these exemplary embodiments can be implemented in many forms and should not be construed as limited to the examples set forth herein; rather, they are provided so that this disclosure will be more comprehensive and complete, and will fully convey the concept of the exemplary embodiments to those skilled in the art. The described features, structures, or characteristics may be combined in any suitable manner in one or more embodiments.

[0057] Furthermore, the accompanying drawings are merely illustrative of this disclosure and are not necessarily drawn to scale. The same reference numerals in the drawings denote the same or similar parts, and therefore repeated descriptions of them will be omitted. Some block diagrams shown in the drawings are functional entities and do not necessarily correspond to physically or logically independent entities. These functional entities may be implemented in software, in one or more hardware modules or integrated circuits, or in different network and / or processor devices and / or microcontroller devices.

[0058] As mentioned in the background section, the safety management of the hydrogen storage compartment is particularly important in hydrogen-powered locomotives. The energy structure of a high-power hydrogen-powered hybrid shunting locomotive includes hydrogen stored in high-pressure hydrogen cylinders and electrical energy stored in a power battery. The locomotive's hydrogen system consists of numerous cylinder groups connected by valves, pipelines, controllers, and sensors. Hydrogen molecules have a low density and are prone to leakage from poorly sealed areas such as pipeline gaps. When the volume concentration of hydrogen in the air is between 4% and 75.6%, it can explode upon contact with an open flame. To improve the safety of hydrogen use in locomotives, this disclosure provides a ventilation system for hydrogen-powered locomotives.

[0059] The specific implementation methods of the embodiments of this disclosure will now be described in detail with reference to the accompanying drawings.

[0060] Figure 1 A schematic diagram of a hydrogen-powered locomotive ventilation system architecture proposed in an embodiment of this disclosure is shown, such as... Figure 1 As shown, the ventilation system of the hydrogen-powered locomotive includes: a ventilation device 101, a time-delay switch circuit 102, and a control device 103.

[0061] Among them, the ventilation device 101 is used to ventilate the hydrogen storage compartment of the hydrogen-powered locomotive.

[0062] It should be noted that the ventilation device can be any device on the hydrogen-powered locomotive that can ventilate the hydrogen storage compartment. The ventilation device usually includes a fan, ventilation duct, etc. The ventilation effect can be achieved by adjusting the speed and direction of the fan to ensure that there is sufficient ventilation in the hydrogen storage compartment to maintain the hydrogen concentration within a safe range and prevent hydrogen from accumulating to a dangerous level.

[0063] The time-delay switch circuit 102 is connected between the first power supply circuit of the hydrogen-powered locomotive and the second power supply circuit of the ventilation device 101. It is used to switch from an open state to a closed state when the first power supply circuit is on, and after a preset time, switch back to an open state. When the time-delay switch circuit 102 is in the open state, the second power supply circuit is in the open state, and when the time-delay switch circuit 102 is in the on state, the second power supply circuit is in the on state.

[0064] It should be noted that the time-delay switch circuit in this embodiment is a circuit capable of automatically switching states after a certain time delay. In this hydrogen fuel cell locomotive ventilation system, the time-delay switch circuit is connected between the first power supply circuit of the hydrogen fuel cell locomotive and the second power supply circuit of the ventilation device. When the first power supply circuit of the hydrogen fuel cell locomotive is turned on, that is, when the hydrogen fuel cell locomotive is first powered on, the time-delay switch circuit receives power from the first power supply circuit, completing the switch from an open state to a closed state, and then switches back to the open state after a preset time delay. When the time-delay switch circuit is in the open state, the second power supply circuit of the ventilation device is also in the open state; and when the time-delay switch circuit is in the closed state, the second power supply circuit of the ventilation device is in the on state. The design of the time-delay switch circuit can ensure that the ventilation device receives power for a period of time after the locomotive starts, so as to ventilate the hydrogen storage room in a timely manner and improve safety.

[0065] In this embodiment, the time-delay switch circuit can be implemented using one or more time-delay relays. A time-delay relay is an electrical control element with a timing function. Upon receiving a start signal (in this embodiment, this could be the locomotive's power-on signal), it performs a corresponding action (such as closing or opening contacts) only after a preset time delay. Specifically, in this embodiment, a single energized time-delay relay can be used to close the contacts within a predetermined time. This allows the time-delay switch circuit to switch from an open state to a closed state when the first power supply circuit is on, and then switch back to an open state after a preset duration. The principle is that when the coil of the energized time-delay relay is energized, it immediately generates electromagnetic force, attracting the moving iron piece downwards, causing the normally open contact to close and the normally closed contact to open. Simultaneously, a timer starts counting. When the preset delay time is reached, the timer sends a signal to restore the moving iron piece to its original state, i.e., the normally open contact opens and the normally closed contact closes. Thus, the energized time-delay relay can maintain the closed state of the contacts for a preset time, macroscopically ensuring that the time-delay switch circuit remains closed for the preset time.

[0066] The control device 103 is connected to the second power supply circuit and is used to control the second power supply circuit to be in a conducting or disconnected state after the delay switch circuit 102 switches from a closed state to an open state.

[0067] It should be noted that the control device only performs its control function after the delay switch circuit switches from a closed state to an open state. That is, after the locomotive is powered on and has undergone a preset ventilation period, the control device can then control the second power supply circuit. This design considers the continuity and safety of system operation, improving the overall system reliability. In this embodiment, the control device can also be connected to the first power supply circuit to allow the control device to receive power from the hydrogen-powered locomotive.

[0068] The hydrogen fuel cell locomotive ventilation system of this embodiment includes a time-delay switch circuit that switches its state after a certain delay following locomotive startup. This ensures that the ventilation device receives power for a predetermined time after the locomotive starts, enabling automatic ventilation of the hydrogen storage compartment during locomotive startup. Furthermore, the control device can control the ventilation device, reducing the risk of hydrogen leakage, minimizing potential safety accidents, and effectively improving the system's safety, stability, and automation level, thus providing a reliable guarantee for the safe operation of the hydrogen fuel cell locomotive.

[0069] In some embodiments of this disclosure, Figure 2 A more detailed schematic diagram of a hydrogen-powered locomotive ventilation system is shown, such as... Figure 2 As shown, the time-delay switch circuit also includes a first relay 201 and a second relay 202;

[0070] The first relay 201 is connected between the first power supply circuit and the second relay 202;

[0071] The second relay 202 is connected between the second power supply circuit and the ventilation device 101;

[0072] The first relay 201 is used to switch from the disconnected state to the on state when the first power supply circuit is turned on, so as to trigger the second relay to switch from the disconnected state to the on state.

[0073] It should be noted that the ventilation system achieves tiered control through the use of a first relay and a second relay. The first relay, connected between the first power supply circuit and the second relay, acts as a trigger. When the first power supply circuit is turned on, the first relay switches from an off state to a on state, thereby triggering the switching of the second relay. This tiered control ensures more precise startup and operation of the ventilation system after the hydrogen-powered locomotive is powered on. Using two relays increases system reliability because each relay plays a crucial triggering role. The operation of the relays is generally stable, ensuring the safe startup and shutdown of the ventilation system. The second relay, connected to the ventilation system, makes the control of the second power supply circuit more independent, allowing the ventilation system to better control the operation of the ventilation system after the delay switch circuit switches states, avoiding unnecessary misoperation.

[0074] It should be noted that the first relay in this embodiment is a power-on delay relay, which can realize the delay effect of the delay switch circuit. That is, when the first power supply circuit of the hydrogen energy locomotive is powered on, the first relay is energized and energized for a preset time. Subsequently, the second relay will also be energized for a preset time, so that the ventilation device connected to the second relay is powered on for a preset time, thus achieving the effect of automatic ventilation for a period of time after the locomotive is powered on.

[0075] In some embodiments of this disclosure, Figure 3 A more detailed schematic diagram of a hydrogen-powered locomotive ventilation system is shown, such as... Figure 3 As shown, the first relay 201 includes: a first relay coil component 2011 and a first relay contact switch 2012; the second relay 202 includes: a second relay coil component 2021 and a second relay contact switch 2022.

[0076] The first end of the first relay coil component 2011 is connected to the positive terminal of the first power supply circuit, and the second end of the first relay coil component 2011 is connected to the negative terminal of the first power supply circuit.

[0077] The first terminal of the first relay contact switch 2012 is connected to the positive terminal of the first power supply circuit, and the second terminal of the first relay contact switch 2012 is connected to the first terminal of the second relay coil component 2021.

[0078] The second terminal of the second relay coil component 2021 is connected to the negative terminal of the first power supply circuit;

[0079] The second relay contact switch 2022 is connected between the second power supply circuit and the ventilation device.

[0080] It should be noted that, specifically, the first relay includes a coil component and a contact switch. The two ends of the first relay coil component are connected to the positive and negative terminals of the first power supply circuit, ensuring the flow of normal operating current. The first relay contact switch controls the start and stop of the ventilation device through the excitation of the coil component. The second relay includes a coil component and a contact switch. The second end of the second relay coil component is connected to the negative terminal of the first power supply circuit, ensuring a closed current loop. The second relay contact switch is connected between the second power supply circuit and the ventilation device, used to actually control the power supply status of the ventilation device.

[0081] When the first power supply circuit is turned on, current flows through the positive terminal of the first power supply circuit, energizing the first relay coil component. This closes the first relay contact switch, causing the branch connected to the first relay contact switch to conduct. The second relay coil component is energized, causing the second relay contact switch to close, thus allowing the ventilation device to receive power from the second power supply circuit and completing the ventilation operation for the hydrogen-powered locomotive. In this embodiment, the first relay can be a time-delay relay, enabling the ventilation device to automatically ventilate for a period of time when the locomotive is powered on. Alternatively, in this embodiment, the second relay can also be a time-delay relay; even when the first relay is a general relay or contactor, the effect of automatically ventilating for a period of time when the locomotive is powered on can still be achieved.

[0082] In some embodiments of this disclosure, Figure 4 A more detailed schematic diagram of a hydrogen-powered locomotive ventilation system is shown, in which a first power supply circuit provides direct current, such as... Figure 4 As shown, the second power supply circuit 40 includes: a first ventilation power supply circuit 401, which includes a power conversion module for converting the DC power supplied by the first power supply circuit into AC power to power the ventilation device.

[0083] It should be noted that the first power supply circuit is the locomotive power supply circuit of a general locomotive, which is generally 110V DC power. However, the ventilation device is generally an AC power device. Therefore, the first power supply circuit includes a power conversion module, which can convert the current input to the first power supply circuit from DC to AC power to ensure that the ventilation device can receive a suitable power supply, so that the ventilation device can operate normally and provide the required ventilation effect.

[0084] In some embodiments of this disclosure, such as Figure 4 As shown, the second power supply circuit 40 further includes a second ventilation power supply circuit 402 that provides AC power and is connected to the ventilation device for supplying power to the ventilation device.

[0085] The second power supply circuit is dedicated to providing AC power to the ventilation system. Compared to the first ventilation power supply circuit, which includes a power conversion module, the second ventilation power supply circuit can provide additional power support without using the power from the first power supply circuit. By introducing the second ventilation power supply circuit, the system's power supply capability is further enhanced, thereby improving the stability and performance of the ventilation system. This design takes into account the varying power requirements of the ventilation system under different operating conditions, providing it with more flexible and reliable power support.

[0086] Figure 5 A partial schematic diagram of a hydrogen-powered locomotive ventilation system according to an embodiment of this disclosure is shown, such as... Figure 5 As shown, the ventilation system of the hydrogen-powered locomotive also includes:

[0087] Manual switch 50 is connected to control device 103;

[0088] The control device 103 is also used to: monitor the switching status of the manual switch 50; when the manual switch 50 is detected to be in the closed state, monitor whether the power supply status of the second ventilation power supply circuit 402 is normal; if the power supply status of the second ventilation power supply circuit 402 is normal, control the second ventilation power supply circuit 402 to supply power to the ventilation device; if the power supply status of the second ventilation power supply circuit 402 is abnormal, control the first ventilation power supply circuit 401 to supply power to the ventilation device.

[0089] It should be noted that a manual switch can be any type of device that can be operated manually. It typically consists of a rotatable or movable button, brake, or lever, which the locomotive operator can manually open or close. In the ventilation system of hydrogen-powered locomotives, the manual switch is used to manually control whether ventilation of the hydrogen storage compartment is required, allowing the operator to intervene or adjust as needed.

[0090] Correspondingly, the control device will also monitor whether the manual switch is on or off, and whether the power supply status of the second ventilation power supply circuit is normal. If the power supply status of the second ventilation power supply circuit is normal, the control device will activate the second ventilation power supply circuit to supply power to the ventilation device. If the power supply status of the second ventilation power supply circuit is abnormal, the control device will switch to the first ventilation power supply circuit to ensure that the ventilation device receives the necessary power supply, thereby ensuring that the ventilation system can receive a stable and reliable power supply under various conditions, and that manual intervention can be performed when necessary.

[0091] In some embodiments of this disclosure, the hydrogen-powered locomotive ventilation system further includes a control circuit, which includes a third relay, a fourth relay, and a fifth relay.

[0092] The third relay is connected to the control device and is used to control the fourth relay to make the second ventilation power supply circuit in a conducting state when the manual switch is in the closed state and the power supply status of the second ventilation power supply circuit is normal; the fifth relay is connected to the control device and is used to control the second relay to make the first ventilation power supply circuit in a conducting state when the manual switch is in the closed state and the power supply status of the second ventilation power supply circuit is abnormal.

[0093] It should be noted that the ventilation system of the hydrogen-powered locomotive also includes a control circuit. This control circuit is the intermediate circuit through which the control device specifically controls the second power supply circuit. It includes three relays to achieve actual control of the second power supply circuit. The third relay is connected to the control device. When the manual switch is closed and the power supply status of the second ventilation power supply circuit is normal, the control device drives the third relay to conduct, thereby energizing the fourth relay. The conduction of the fourth relay puts the second ventilation power supply circuit into a powered state. The fifth relay is also connected to the control device. When the manual switch is closed and the power supply status of the second ventilation power supply circuit is abnormal, the control device drives the fifth relay to conduct, thereby energizing the second relay. The conduction of the second relay puts the first ventilation power supply circuit into a conducting state.

[0094] In some embodiments of this disclosure, the above-described hydrogen-powered locomotive ventilation system is as follows: Figure 6 As shown, specifically, the third relay includes a third relay coil component 6011 and a third relay contact switch 6012 corresponding to the third relay coil component 6011; the fourth relay includes a fourth relay coil component 6021 and a fourth relay contact switch 6022 corresponding to the fourth relay coil component 6021; and the fifth relay includes a fifth relay coil component 6031 and a fifth relay contact switch 6032 corresponding to the fifth relay coil component 6031.

[0095] The first terminal of the manual switch 50 is connected to the positive terminal of the first power supply circuit, and the second terminal of the manual switch 50 is connected to the control device 103.

[0096] The first end of the third relay coil component 6011 is connected to the control device 103, and the second end of the third relay coil component 6011 is connected to the negative terminal of the first power supply circuit.

[0097] The first end of the third relay contact switch 6012 is connected to the positive terminal of the first power supply circuit, the second end of the third relay contact switch 6012 is connected to the first end of the fourth relay coil component 6021, the second end of the fourth relay coil component 6021 is connected to the negative terminal of the first power supply circuit, and the first and second ends of the fourth relay contact switch 6022 are respectively connected to the ventilation device 101 and the second ventilation power supply circuit 402.

[0098] The first end of the fifth relay coil component 6031 is connected to the control device 103, and the second end of the fifth relay coil component 6031 is connected to the negative terminal of the first power supply circuit.

[0099] The first end of the fifth relay contact switch 6032 is connected to the positive terminal of the first power supply circuit, and the second end of the fifth relay contact switch 6032 is connected to the second end of the first relay contact switch 2012, the power conversion module 4011, and the first end of the second relay coil component 2021.

[0100] Therefore, when the first power supply circuit is turned on, current flows from the positive terminal of the locomotive's power supply, through the coil of the first relay, and the corresponding first relay contact closes. This allows current to flow through the coil of the second relay, causing the second relay contact to close. This enables the power conversion module to receive DC power from the locomotive's power supply and convert it to AC power to supply the ventilation system. Since the first relay is a time-delay relay, it automatically initiates ventilation after the locomotive is powered on and continues ventilation for a period before stopping. This current flows through the time-delay switch circuit, which switches from an open state to a closed state when the first power supply circuit is on, and then switches back to an open state after a preset time. Specifically, when the time-delay switch circuit is open, the second power supply circuit is open; when the time-delay switch circuit is on, the second power supply circuit is on.

[0101] After the locomotive is powered on and completes automatic ventilation for a certain period, i.e., after the delay switch circuit switches from the closed state to the open state, the control device controls whether to continue ventilation. Specifically, when the locomotive operator wants to manually force ventilation, they press the manual switch. At this time, the control device receives the signal that the manual switch is closed. The control device first checks whether the power supply of the second power supply circuit is normal. If it is normal, the control device drives the branch where the third relay is located to be energized, so that the coil component of the third relay is energized, and the contact switch of the third relay closes accordingly, so that the branch where the fourth relay is located is connected, and the coil component of the fourth relay is energized, so that the contact switch of the fourth relay on the second ventilation power supply circuit closes, so that the second ventilation power supply circuit can provide AC power to the ventilation device to realize the ventilation operation.

[0102] When the control device detects an abnormality in the power supply of the second ventilation power supply circuit, the control device will energize the circuit where the fifth relay is located, so that the coil of the fifth relay is energized. Correspondingly, the contact switch of the fifth relay closes, allowing current to flow from the contact switch of the fifth relay to the second relay. The coil of the second relay is energized, and correspondingly, the contact switch of the second relay closes. Finally, the current passes through the power conversion module and the contact switch of the second relay to reach the ventilation device, so that the ventilation device completes the final effect of ventilation operation when the manual switch is closed.

[0103] In other embodiments of this disclosure, the hydrogen-powered locomotive ventilation system further includes: a hydrogen concentration measurement module connected to a control device, used to measure the hydrogen concentration value in the hydrogen storage room and transmit the hydrogen concentration value to the control device;

[0104] The control device is also used for:

[0105] Monitor the hydrogen concentration in the hydrogen storage room;

[0106] When the hydrogen concentration is detected to be higher than the preset concentration, the control device is also used to monitor the power supply status of the second ventilation power supply circuit.

[0107] When the power supply status of the second ventilation power supply circuit is normal, the control device is used to control the second ventilation power supply circuit to be in the conducting state.

[0108] When the power supply status of the second ventilation power supply circuit is abnormal, the control device is used to control the first ventilation power supply circuit to be in the conducting state.

[0109] This disclosure enables automatic ventilation of the hydrogen storage room based on monitoring of the hydrogen concentration, improving the safety and reliability of hydrogen-powered vehicles. The automatic ventilation, based on real-time monitoring of the hydrogen concentration in the storage room, allows for timely response to high hydrogen concentrations, effectively reducing potential safety risks. In other embodiments of this disclosure, the aforementioned hydrogen concentration measurement module can also be a hydrogen alarm module. This module sends a hydrogen concentration exceedance signal to the control device when the hydrogen concentration exceeds a safe range, allowing the control device to directly monitor the power supply status of the second ventilation power supply circuit. When the power supply status of the second ventilation power supply circuit is normal, the control device keeps it in a conducting state; when the power supply status of the second ventilation power supply circuit is abnormal, the control device keeps the first ventilation power supply circuit in a conducting state.

[0110] It should also be noted that, in some embodiments of this disclosure, the first relay described above is a time-delay relay, and its predetermined energizing time can be determined according to the required ventilation time. The second, third, fourth, and fifth relays described above can be relays, contactors, or any combination of both.

[0111] Figure 7 A specific embodiment of a hydrogen-powered locomotive ventilation system according to embodiments of the present disclosure is shown, such as... Figure 7 As shown, the storage battery BA (corresponding to the power supply of the first power supply circuit) for the locomotive control system supplies power to the subsequent stage after the QF-110V circuit breaker is closed.

[0112] Each time the locomotive is powered on, the hydrogen storage compartment is ventilated.

[0113] After QF-110V is closed in the circuit, under normal circumstances, the QF-HM circuit breaker is in the closed state. Electrical energy is supplied to the time delay relay KT-HM (corresponding to the first relay coil component 2011) through QF-HM. The KT-HM contact (corresponding to the first relay contact switch 2012) changes from the open state to the closed state. After the electrical energy passes through the KT-HM contact, it drives the KM-HM contactor (corresponding to the second relay coil component 2021) to operate. At the same time, the DC110V to AC220V power module (corresponding to the first ventilation power supply circuit 401) works. Because the KM-HM contact changes from the open state to the closed state, the AC power drives the hydrogen storage system fan (corresponding to the ventilation device 101) through the KM-HM contact, realizing the power-on ventilation function of the locomotive hydrogen storage system. When the KT-HM time delay relay reaches the set time, the KT-HM relay automatically resets, the KT-HM contacts open, causing the KM-HM contactor to lose power. This interrupts the DC110V to AC220V power supply, and simultaneously, the KM-HM contacts return to the open circuit state, stopping the fan. This circuit ensures forced ventilation of the hydrogen system for a period of time each time the locomotive is powered on, completing the air replacement in the hydrogen storage compartment.

[0114] Manual forced ventilation during locomotive operation:

[0115] At this time, QF-110V in the circuit is in the closed state, and the control device is in the working state. When the SA-HM changeover switch (corresponding to the manual switch) is placed in the closed position, the control device detects the switch status and simultaneously judges the normal AC220 power supply signal status (corresponding to whether the power supply status of the second ventilation power supply circuit 402 is normal). If AC220V AC power (corresponding to the second ventilation power supply circuit 402) is available, AC220V is used to drive the fan first; otherwise, DC110V to AC220V power is used to drive the fan.

[0116] If the control device detects that the AC220V power supply is unavailable, the control device will drive the KA-HM relay (corresponding to the fifth relay coil component 6031) to operate. The KA-HM contact (corresponding to the fifth relay contact switch 6032) will change from an open circuit state to a closed state, thereby driving the KM-HM contactor to operate. At the same time, the DC110V to AC220V power supply will start working. Because the KM-HM contact is closed, the hydrogen storage room fan will be energized and will start working, providing forced ventilation to the hydrogen storage room.

[0117] If the control device recognizes that AC220 power supply is available, the control device drives the KA-HM1 relay (corresponding to the third relay coil component 6011) to be energized. As a result, the KA-HM1 contact (corresponding to the third relay contact switch) changes from an open circuit state to a closed state. The contactor KQ-HM (corresponding to the fourth relay coil component 6021) is energized and drives the KQ-HM contact (corresponding to the fourth relay contact switch 6022) to close. At this time, the hydrogen system fan is energized to ventilate the hydrogen system.

[0118] During locomotive operation, the hydrogen concentration sensor alarms and activates ventilation.

[0119] With QF-110V closed, the control unit is in operation. When the control device receives an alarm signal from the hydrogen concentration sensor, it automatically enters the automatic control program for the hydrogen storage room.

[0120] When the control device detects an alarm from the hydrogen concentration sensor and the AC220V power supply is unavailable, the control device drives the KA-HM relay to operate. The KA-HM contact changes from an open circuit state to a closed state, which in turn drives the KM-HM contactor to operate. At the same time, the DC110V to AC220V power supply starts working. Because the KM-HM contact is closed, the hydrogen storage room fan is powered on and starts working, providing forced ventilation to the hydrogen storage room until the hydrogen concentration sensor alarm is reset.

[0121] When the control device detects an alarm from the hydrogen concentration sensor and AC220 power is available, the control device energizes the KA-HM1 relay, causing the KA-HM1 contact to change from an open circuit to a closed state. The contactor KQ-HM is then energized and its contact is closed, energizing the hydrogen system fan to ventilate the hydrogen system until the hydrogen concentration sensor alarm is reset.

[0122] This disclosure embodiment enables manual forced ventilation of the hydrogen storage room, ventilation of the hydrogen system every time the locomotive is powered on, and automatic operation control of the hydrogen system fan in case of abnormal hydrogen leakage. At the same time, in order to ensure the power supply of the ventilation system, a fan power supply branch based on DC and AC that can be freely switched is designed to ensure reliable ventilation of the locomotive's hydrogen system.

[0123] In the above-described system, this disclosure also provides a ventilation control method for a hydrogen-powered locomotive, applied to the aforementioned hydrogen-powered locomotive ventilation system, such as... Figure 8 As shown, the method includes:

[0124] S802 monitors the power-on signal of the hydrogen-powered locomotive. The power-on signal is the signal emitted when the first power supply circuit of the hydrogen-powered locomotive is turned on.

[0125] S804: When the power-on signal of the hydrogen-powered locomotive is detected, the control delay switch circuit switches from the open state to the closed state, and after a preset time, switches back to the open state.

[0126] S806 controls the second power supply circuit to be either on or off after the time-delay switch circuit switches from the closed state to the open state.

[0127] Based on the same inventive concept, this disclosure also provides a ventilation control device for a hydrogen-powered locomotive, as described in the following embodiments. Since the principle by which this device solves the problem is similar to that of the method embodiments described above, the implementation of this device embodiment can refer to the implementation of the method embodiments described above, and repeated details will not be elaborated further.

[0128] Figure 9 This diagram illustrates a ventilation control device for a hydrogen-powered locomotive according to an embodiment of the present disclosure. Figure 9 As shown, the device includes:

[0129] The power-on signal monitoring module 901 is used to monitor the power-on signal of the hydrogen-powered locomotive. The power-on signal is the signal emitted when the first power supply circuit of the hydrogen-powered locomotive is turned on.

[0130] The delay switch module 902 is used to control the delay switch circuit to switch from the open state to the closed state when the power-on signal of the hydrogen energy locomotive is detected, and to switch back to the open state after a preset time.

[0131] The control module 903 is used to control the second power supply circuit to be in a conducting or disconnected state after the time delay switch circuit switches from a closed state to an open state.

[0132] It should be noted that the examples and application scenarios implemented by the above modules and corresponding steps are the same, but are not limited to the content disclosed in the above method embodiments. It should also be noted that the above modules, as part of an apparatus, can be executed in a computer system such as a set of computer-executable instructions.

[0133] Those skilled in the art will understand that various aspects of this disclosure can be implemented as a system, method, or program product. Therefore, various aspects of this disclosure can be specifically implemented in the following forms: a completely hardware implementation, a completely software implementation (including firmware, microcode, etc.), or a combination of hardware and software aspects, collectively referred to herein as a "circuit," "module," or "system."

[0134] The following reference Figure 10 To describe an electronic device 1000 according to such an embodiment of the present disclosure. Figure 10The electronic device 1000 shown is merely an example and should not impose any limitation on the functionality and scope of use of the embodiments disclosed herein.

[0135] like Figure 10 As shown, the electronic device 1000 is manifested in the form of a general-purpose computing device. The components of the electronic device 1000 may include, but are not limited to: at least one processing unit 1010, at least one storage unit 1020, and a bus 1030 connecting different system components (including storage unit 1020 and processing unit 1010).

[0136] The storage unit stores program code that can be executed by the processing unit 1010, causing the processing unit 1010 to perform the steps described in the "Exemplary Methods" section of this specification according to various exemplary embodiments of this disclosure. For example, the processing unit 1010 can perform the following steps of the above method embodiment: monitoring the power-on signal of the hydrogen-powered locomotive, the power-on signal being a signal emitted when the first power supply circuit of the hydrogen-powered locomotive is turned on; when the power-on signal of the hydrogen-powered locomotive is detected, controlling the delay switch circuit to switch from an open state to a closed state, and after a preset duration, switching it back to an open state; after the delay switch circuit switches from a closed state to an open state, controlling the second power supply circuit to be in an on or off state.

[0137] Storage unit 1020 may include readable media in the form of volatile storage units, such as random access memory (RAM) 10201 and / or cache memory 10202, and may further include read-only memory (ROM) 10203.

[0138] Storage unit 1020 may also include a program / utility 10204 having a set (at least one) program module 10205, such program module 10205 including but not limited to: operating system, one or more application programs, other program modules and program data, each or some combination of these examples may include an implementation of a network environment.

[0139] Bus 1030 can represent one or more of several types of bus structures, including a memory cell bus or memory cell controller, a peripheral bus, a graphics acceleration port, a processing unit, or a local bus using any of the multiple bus structures.

[0140] Electronic device 1000 can also communicate with one or more external devices 1040 (e.g., keyboard, pointing device, Bluetooth device, etc.), one or more devices that enable a user to interact with electronic device 1000, and / or any device that enables electronic device 1000 to communicate with one or more other computing devices (e.g., router, modem, etc.). This communication can be performed via input / output (I / O) interface 1050. Furthermore, electronic device 1000 can also communicate with one or more networks (e.g., local area network (LAN), wide area network (WAN), and / or public networks, such as the Internet) via network adapter 1060. As shown, network adapter 1060 communicates with other modules of electronic device 1000 via bus 1030. It should be understood that, although not shown in the figures, other hardware and / or software modules can be used in conjunction with electronic device 1000, including but not limited to: microcode, device drivers, redundant processing units, external disk drive arrays, RAID systems, tape drives, and data backup storage systems.

[0141] From the above description of the embodiments, those skilled in the art will readily understand that the exemplary embodiments described herein can be implemented by software or by combining software with necessary hardware. Therefore, the technical solutions according to the embodiments of this disclosure can be embodied in the form of a software product, which can be stored in a non-volatile storage medium (such as a CD-ROM, USB flash drive, external hard drive, etc.) or on a network, including several instructions to cause a computing device (such as a personal computer, server, terminal device, or network device, etc.) to execute the methods according to the embodiments of this disclosure.

[0142] In particular, according to embodiments of this disclosure, the process described above with reference to the flowchart can be implemented as a computer program product, which includes a computer program that, when executed by a processor, implements the methods described in the above embodiments.

[0143] In exemplary embodiments of this disclosure, a computer-readable storage medium is also provided, which may be a readable signal medium or a readable storage medium. A program product capable of implementing the methods described above is stored thereon. In some possible implementations, various aspects of this disclosure may also be implemented as a program product including program code, which, when run on a terminal device, causes the terminal device to perform the steps described in the "Exemplary Methods" section of this specification according to various exemplary embodiments of this disclosure.

[0144] More specific examples of computer-readable storage media in this disclosure may include, but are not limited to: electrical connections having one or more wires, portable computer disks, hard disks, random access memory (RAM), read-only memory (ROM), erasable programmable read-only memory (EPROM or flash memory), optical fiber, portable compact disk read-only memory (CD-ROM), optical storage devices, magnetic storage devices, or any suitable combination of the foregoing.

[0145] In this disclosure, a computer-readable storage medium may include a data signal propagated in baseband or as part of a carrier wave, carrying readable program code. Such propagated data signals may take various forms, including but not limited to electromagnetic signals, optical signals, or any suitable combination thereof. A readable signal medium may also be any readable medium other than a readable storage medium, capable of transmitting, propagating, or transmitting a program for use by or in connection with an instruction execution system, apparatus, or device.

[0146] Optionally, the program code contained on the computer-readable storage medium may be transmitted using any suitable medium, including but not limited to wireless, wired, optical fiber, RF, etc., or any suitable combination thereof.

[0147] In practical implementation, program code for performing the operations of this disclosure can be written in any combination of one or more programming languages, including object-oriented programming languages ​​such as Java and C++, and conventional procedural programming languages ​​such as C or similar languages. The program code can execute entirely on the user's computing device, partially on the user's device, as a standalone software package, partially on the user's computing device and partially on a remote computing device, or entirely on a remote computing device or server. In cases involving remote computing devices, the remote computing device can be connected to the user's computing device via any type of network, including a local area network (LAN) or a wide area network (WAN), or it can be connected to an external computing device (e.g., via the Internet using an Internet service provider).

[0148] It should be noted that although several modules or units for the device used to perform actions have been mentioned in the detailed description above, this division is not mandatory. In fact, according to embodiments of this disclosure, the features and functions of two or more modules or units described above can be embodied in one module or unit. Conversely, the features and functions of one module or unit described above can be further divided and embodied by multiple modules or units.

[0149] Furthermore, although the steps of the method in this disclosure are described in a specific order in the accompanying drawings, this does not require or imply that the steps must be performed in that specific order, or that all the steps shown must be performed to achieve the desired result. Additional or alternative steps may be omitted, multiple steps may be combined into one step, and / or a step may be broken down into multiple steps.

[0150] From the above description of the embodiments, those skilled in the art will readily understand that the exemplary embodiments described herein can be implemented by software or by combining software with necessary hardware. Therefore, the technical solutions according to the embodiments of this disclosure can be embodied in the form of a software product, which can be stored in a non-volatile storage medium (such as a CD-ROM, USB flash drive, external hard drive, etc.) or on a network, including several instructions to cause a computing device (such as a personal computer, server, mobile terminal, or network device, etc.) to execute the methods according to the embodiments of this disclosure.

[0151] Other embodiments of this disclosure will readily occur to those skilled in the art upon consideration of the specification and practice of the invention disclosed herein. This disclosure is intended to cover any variations, uses, or adaptations of this disclosure that follow the general principles of this disclosure and include common knowledge or customary techniques in the art not disclosed herein. The specification and examples are to be considered exemplary only, and the true scope and spirit of this disclosure are indicated by the appended claims.

Claims

1. A ventilation system for a hydrogen-powered locomotive, characterized in that, include: Ventilation device, used to ventilate the hydrogen storage compartment of hydrogen-powered locomotives; A time-delay switch circuit is connected between the first power supply circuit of the hydrogen-powered locomotive and the second power supply circuit of the ventilation device. It is used to switch from an open state to a closed state when the first power supply circuit is on, and after a preset time, switch back to an open state. When the time-delay switch circuit is in the open state, the second power supply circuit is in the open state. When the time-delay switch circuit is in the on state, the second power supply circuit is in the on state. A control device, connected to the second power supply circuit, is used to control the second power supply circuit to be in a conducting or disconnected state after the delay switch circuit switches from a closed state to an open state. The time-delay switch circuit includes: a first relay and a second relay; the first relay is connected between the first power supply circuit and the second relay; the second relay is connected between the second power supply circuit and the ventilation device; the first relay is used to switch from an off state to an on state when the first power supply circuit is on, so as to trigger the second relay to switch from an off state to an on state. The first relay includes a first relay coil component and a first relay contact switch; the second relay includes a second relay coil component and a second relay contact switch; a first end of the first relay coil component is connected to the positive terminal of the first power supply circuit, and a second end of the first relay coil component is connected to the negative terminal of the first power supply circuit; a first end of the first relay contact switch is connected to the positive terminal of the first power supply circuit, and a second end of the first relay contact switch is connected to the first end of the second relay coil component; a second end of the second relay coil component is connected to the negative terminal of the first power supply circuit; and the second relay contact switch is connected between the second power supply circuit and the ventilation device.

2. The hydrogen-powered locomotive ventilation system according to claim 1, characterized in that, The first power supply circuit provides direct current, and the second power supply circuit includes a first ventilation power supply circuit, which includes a power conversion module for converting the direct current provided by the first power supply circuit into alternating current to power the ventilation device.

3. The hydrogen-powered locomotive ventilation system according to claim 2, characterized in that, The second power supply circuit further includes: a second ventilation power supply circuit that provides alternating current, connected to the ventilation device, for supplying power to the ventilation device.

4. The hydrogen-powered locomotive ventilation system according to claim 3, characterized in that, The hydrogen-powered locomotive ventilation system also includes: A manual switch is connected to the control device; The control device is further configured to: monitor the on / off state of the manual switch; when the manual switch is detected to be in a closed state, monitor whether the power supply state of the second ventilation power supply circuit is normal; if the power supply state of the second ventilation power supply circuit is normal, control the second ventilation power supply circuit to supply power to the ventilation device; if the power supply state of the second ventilation power supply circuit is abnormal, control the first ventilation power supply circuit to supply power to the ventilation device.

5. The hydrogen-powered locomotive ventilation system according to claim 4, characterized in that, The hydrogen-powered locomotive ventilation system also includes a control circuit, which includes a third relay, a fourth relay, and a fifth relay. The third relay is connected to the control device and is used to control the conduction of the fourth relay to make the second ventilation power supply circuit in a conducting state when the manual switch is in the closed state and the power supply state of the second ventilation power supply circuit is normal. The fifth relay is connected to the control device and is used to control the second relay to make the first ventilation power supply circuit in a conducting state when the manual switch is in the closed state and the power supply state of the second ventilation power supply circuit is abnormal.

6. The hydrogen-powered locomotive ventilation system according to claim 5, characterized in that, The third relay includes a third relay coil component and a third relay contact switch corresponding to the third relay coil component; the fourth relay includes a fourth relay coil component and a fourth relay contact switch corresponding to the fourth relay coil component; and the fifth relay includes a fifth relay coil component and a fifth relay contact switch corresponding to the fifth relay coil component. The first terminal of the manual switch is connected to the positive terminal of the first power supply circuit, and the second terminal of the manual switch is connected to the control device. The first end of the third relay coil component is connected to the control device, and the second end of the third relay coil component is connected to the negative terminal of the first power supply circuit. The first end of the third relay contact switch is connected to the positive terminal of the first power supply circuit, the second end of the third relay contact switch is connected to the first end of the fourth relay coil component, the second end of the fourth relay coil component is connected to the negative terminal of the first power supply circuit, and the first and second ends of the fourth relay contact switch are respectively connected to the ventilation device and the second ventilation power supply circuit. The first end of the fifth relay coil component is connected to the control device, and the second end of the fifth relay coil component is connected to the negative terminal of the first power supply circuit. The first end of the fifth relay contact switch is connected to the positive terminal of the first power supply circuit, and the second end of the fifth relay contact switch is connected to the second end of the first relay contact switch, the power conversion module, and the first end of the second relay coil component.

7. The hydrogen-powered locomotive ventilation system according to claim 6, characterized in that, The hydrogen-powered locomotive ventilation system further includes: a hydrogen concentration measurement module connected to the control device, used to measure the hydrogen concentration value in the hydrogen storage room and transmit the hydrogen concentration value to the control device; The control device is also used for: Monitor the hydrogen concentration in the hydrogen storage room; When the hydrogen concentration value is detected to be higher than the preset concentration value, the control device is also used to monitor the power supply status of the second ventilation power supply circuit; When the power supply status of the second ventilation power supply circuit is normal, the control device is used to control the second ventilation power supply circuit to be in the conducting state; When the power supply status of the second ventilation power supply circuit is abnormal, the control device is used to control the first ventilation power supply circuit to be in a conducting state.

8. A ventilation control method for a hydrogen-powered locomotive, characterized in that, The system is applied to the hydrogen-powered locomotive ventilation system according to any one of claims 1 to 7, comprising: Monitor the power-on signal of the hydrogen-powered locomotive, which is a signal emitted when the first power supply circuit of the hydrogen-powered locomotive is turned on; When the power-on signal of the hydrogen-powered locomotive is detected, the control delay switch circuit switches from the open state to the closed state, and after a preset time, switches back to the open state. After the delay switch circuit switches from the closed state to the open state, it controls the second power supply circuit to be in the on or off state.

9. A ventilation control device for a hydrogen-powered locomotive, used to implement the ventilation control method for a hydrogen-powered locomotive as described in claim 8, characterized in that, include: The power-on signal monitoring module is used to monitor the power-on signal of the hydrogen-powered locomotive, which is a signal emitted when the first power supply circuit of the hydrogen-powered locomotive is turned on. The delay switch module is used to control the delay switch circuit to switch from the open state to the closed state when the power-on signal of the hydrogen energy locomotive is detected, and to switch back to the open state after a preset time. The control module is used to control the second power supply circuit to be in a conducting or disconnected state after the time delay switch circuit switches from a closed state to an open state.

10. An electronic device, characterized in that, include: processor; as well as Memory for storing the executable instructions of the processor; The processor is configured to execute the hydrogen fuel cell vehicle ventilation control method of claim 8 by executing the executable instructions.

11. A computer-readable storage medium having a computer program stored thereon, characterized in that, When the computer program is executed by the processor, it implements the ventilation control method for hydrogen-powered locomotives as described in claim 8.

12. A computer program product, comprising: A computer program or instruction, characterized in that, when executed by a processor, the computer program or instruction implements the ventilation control method for hydrogen-powered locomotives as described in claim 8.

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