Fuel cell engine thermal management system control method, system, device, and medium

Abstract

The embodiment of the application discloses a fuel cell engine thermal management system control method, system, device and medium, the fuel cell engine thermal management system control method comprises: obtaining the real-time pressure value of the fuel cell cooling inlet and the real-time temperature difference value between the fuel cell cooling outlet and the cooling inlet; according to the real-time pressure value, the real-time temperature difference value, the preset pressure value and the preset temperature difference value, the fault type of the fuel cell engine thermal management system is judged; according to the fault type, the control mode is determined. By the above technical means, by comparing the collected real-time pressure value and real-time temperature difference value with the preset pressure value and preset temperature difference value under the normal working state of the fuel cell engine thermal management system, the state of the coolant can be monitored in real time, and the control efficiency and control accuracy are improved by judging the fault type of the fuel cell engine thermal management system to determine the control method.

Description

Technical Field

[0001] This invention relates to the field of fuel cell vehicle technology, and in particular to control methods, systems, equipment and media for fuel cell engine thermal management systems. Background Technology

[0002] Temperature control of fuel cell engines has a significant impact on the gas transport characteristics of fuel cells, the water content of membranes, the catalytic activity of the catalyst layer, and its lifespan.

[0003] If the fuel cell engine experiences insufficient coolant filling or leakage, it will severely affect the system's heat dissipation, causing the system to malfunction and operate stably, and may even lead to serious consequences such as performance degradation and component damage.

[0004] Current fault diagnosis technologies for thermal management systems are all focused on related components and cannot directly monitor the coolant status online. Abnormal coolant status can only be detected by shutting down the system after it overheats, which has a certain degree of lag and passivity and will inevitably cause damage to the fuel cell stack. Summary of the Invention

[0005] The fuel cell engine thermal management system control method, system, equipment and medium provided in this embodiment of the invention can monitor the state of the coolant in real time, and determine the control method by judging the fault type of the fuel cell engine thermal management system, thereby improving control efficiency and control accuracy.

[0006] In a first aspect, embodiments of the present invention provide a control method for a thermal management system of a fuel cell engine, comprising:

[0007] Obtain the real-time pressure value at the fuel cell cooling inlet and the real-time temperature difference between the fuel cell cooling outlet and the cooling inlet;

[0008] The fault type of the fuel cell engine thermal management system is determined based on the real-time pressure value, the real-time temperature difference value, the preset pressure value, and the preset temperature difference value.

[0009] The control method is determined based on the fault type.

[0010] Optionally, the fault type of the fuel cell engine thermal management system is determined based on the real-time pressure value, the real-time temperature difference value, the preset pressure value, and the preset temperature difference value, including:

[0011] If the real-time pressure value exceeds the preset pressure value and the real-time temperature difference does not exceed the preset temperature difference value, the fuel cell engine thermal management system is determined to be in normal working condition.

[0012] Determining the control method based on the fault type includes:

[0013] Based on the normal operating state, the fuel cell engine thermal management system is determined to maintain its current operating state and continue to operate.

[0014] Optionally, the fault type of the fuel cell engine thermal management system is determined based on the real-time pressure value, the real-time temperature difference value, the preset pressure value, and the preset temperature difference value, including:

[0015] If the real-time pressure value exceeds the preset pressure value and the real-time temperature difference exceeds the preset temperature difference, the fuel cell engine thermal management system is determined to be in an abnormal working state.

[0016] Determining the control method based on the fault type includes:

[0017] Based on the abnormal operating state, a first control signal is output to notify the user that the fuel cell engine thermal management system is malfunctioning and to control the fuel cell engine thermal management system to output a first power; the first power is less than the output power of the fuel cell engine thermal management system when it is operating normally.

[0018] Optionally, the fault type of the fuel cell engine thermal management system is determined based on the real-time pressure value, the real-time temperature difference value, the preset pressure value, and the preset temperature difference value, including:

[0019] If the real-time pressure value does not exceed the preset pressure value and the real-time temperature difference does not exceed the preset temperature difference, the fuel cell engine thermal management system is determined to be in the first fault state.

[0020] Determining the control method based on the fault type includes:

[0021] Based on the first fault status, a second control signal is output to prompt the user to check the coolant status.

[0022] Optionally, the fault type of the fuel cell engine thermal management system is determined based on the real-time pressure value, the real-time temperature difference value, the preset pressure value, and the preset temperature difference value, including:

[0023] If the real-time pressure value does not exceed the preset pressure value and the real-time temperature difference exceeds the preset temperature difference, the fuel cell engine thermal management system is determined to be in a second fault state.

[0024] Determining the control method based on the fault type includes:

[0025] Based on the second fault status, a third control signal is output to prompt the user that the coolant is insufficient and to control the thermal management system of the fuel cell engine to stop working.

[0026] Optionally, before obtaining the real-time pressure value of the fuel cell cooling inlet and the real-time temperature difference between the fuel cell cooling outlet and the cooling inlet, the following steps are also included:

[0027] When the fuel cell engine thermal management system is working normally, it acquires preset pressure values ​​and preset temperature differences.

[0028] Optionally, when the fuel cell engine thermal management system is operating normally, preset pressure values ​​and preset temperature differences are acquired, including:

[0029] When the fuel cell engine thermal management system is operating normally, standard data is acquired; the standard data includes: water pump speed, coolant inlet and outlet stack temperature, coolant inlet and outlet stack pressure, fan speed, and three-way valve opening.

[0030] After normalizing the standard data, it is input into the neural network model to obtain the preset pressure value and the preset temperature difference value.

[0031] Secondly, embodiments of the present invention also provide a fuel cell engine thermal management system, comprising:

[0032] The data acquisition module is used to acquire the real-time pressure value of the fuel cell cooling inlet and the real-time temperature difference between the fuel cell cooling outlet and the cooling inlet.

[0033] The fault type determination module is used to determine the fault type of the fuel cell engine thermal management system based on the real-time pressure value, the real-time temperature difference value, the preset pressure value, and the preset temperature difference value.

[0034] The control method determination module is used to determine the control method based on the fault type.

[0035] Thirdly, embodiments of the present invention also provide a computer device, including a memory, a processor, and a computer program stored in the memory and executable on the processor, wherein the processor executes the program to implement the fuel cell engine thermal management system control method as described in any of the first aspects.

[0036] Fourthly, embodiments of the present invention also provide a computer-readable storage medium having a computer program stored thereon, which, when executed by a processor, implements the fuel cell engine thermal management system control method as described in any of the first aspects.

[0037] The technical solution of this invention, by acquiring the real-time pressure value of the fuel cell cooling inlet and the real-time temperature difference between the fuel cell cooling outlet and the cooling inlet, enables real-time monitoring of the coolant pressure and the temperature difference between the fuel cell cooling outlet and the cooling inlet in the fuel cell engine thermal management system. Furthermore, by comparing the collected real-time pressure value and real-time temperature difference with preset pressure values ​​and preset temperature difference values ​​under normal operating conditions of the fuel cell engine thermal management system, the fault type of the fuel cell engine thermal management system can be determined, and different control methods can be determined based on the fault type, thereby improving control efficiency and accuracy. Attached Figure Description

[0038] Figure 1 A flowchart illustrating a control method for a fuel cell engine thermal management system provided in an embodiment of the present invention;

[0039] Figure 2 This is a schematic diagram of the electrical connections of a fuel cell engine thermal management system provided in an embodiment of the present invention;

[0040] Figure 3 A flowchart illustrating another control method for a fuel cell engine thermal management system provided in an embodiment of the present invention;

[0041] Figure 4 A flowchart illustrating another control method for a fuel cell engine thermal management system provided in an embodiment of the present invention;

[0042] Figure 5 A flowchart illustrating another control method for a fuel cell engine thermal management system provided in an embodiment of the present invention;

[0043] Figure 6 A flowchart illustrating another control method for a fuel cell engine thermal management system provided in an embodiment of the present invention;

[0044] Figure 7 A flowchart illustrating another control method for a fuel cell engine thermal management system provided in an embodiment of the present invention;

[0045] Figure 8 A flowchart illustrating another control method for a fuel cell engine thermal management system provided in an embodiment of the present invention;

[0046] Figure 9 This is a schematic diagram of the structure of a fuel cell engine thermal management system provided in an embodiment of the present invention;

[0047] Figure 10 A schematic diagram of the structure of a computer device used in the control method of a fuel cell engine thermal management system to implement an embodiment of the present invention. Detailed Implementation

[0048] The present invention will now be described in further detail with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the invention and not intended to limit it. Furthermore, it should be noted that, for ease of description, the accompanying drawings show only the parts relevant to the present invention, and not all of the structures.

[0049] It should be noted that the terms "first" and "second," etc., in the specification, claims, and accompanying drawings of this invention are used to distinguish similar objects and are not necessarily used to describe a specific order or sequence. It should be understood that such data can be interchanged where appropriate so that embodiments of the invention described herein can be implemented in orders other than those illustrated or described herein. Furthermore, the terms "comprising," "having," and "etc.", and any variations thereof, are intended to cover a non-exclusive inclusion; for example, a process, method, system, product, or apparatus that includes a series of steps or units is not necessarily limited to those steps or units explicitly listed, but may include other steps or units not explicitly listed or inherent to such processes, methods, products, or apparatus.

[0050] Figure 1 This is a flowchart illustrating a control method for a fuel cell engine thermal management system provided in an embodiment of the present invention, as shown below. Figure 1 As shown, the control method of the fuel cell engine thermal management system includes:

[0051] S101. Obtain the real-time pressure value of the fuel cell cooling inlet and the real-time temperature difference between the fuel cell cooling outlet and the cooling inlet.

[0052] Specifically, Figure 2 This is a schematic diagram of the electrical connection of a fuel cell engine thermal management system provided in an embodiment of the present invention, as shown below. Figure 2As shown, the thermal management system of a fuel cell engine can include major components such as a high-pressure electric water pump, intercooler, deionizer, expansion tank, electrically controlled three-way valve, water-heated PTC, thermostat, radiator, fan, coolant inlet temperature sensor, coolant inlet pressure sensor, coolant outlet temperature sensor, and coolant outlet pressure sensor. The fuel cell stack can be a battery pack or a fuel cell. During the operation of the fuel cell engine thermal management system, the fuel cell heats up due to a chemical reaction. To ensure the normal operation of the fuel cell engine thermal management system, the temperature difference between the fuel cell cooling inlet and cooling outlet needs to be maintained within a suitable temperature range. The water pump performs work on the coolant in the system, circulating the coolant and thus cooling the fuel cell. The coolant inlet temperature sensor and coolant outlet temperature sensor at both ends of the fuel cell stack can detect the temperature of the fuel cell cooling inlet and cooling outlet in real time, thereby obtaining the real-time temperature difference between the fuel cell cooling inlet and cooling outlet. Furthermore, the coolant inlet pressure sensor can detect the real-time pressure value of the fuel cell cooling inlet. It is understandable that the real-time pressure value can reflect the amount of coolant; that is, the higher the real-time pressure value, the higher the coolant content.

[0053] S102. Determine the fault type of the fuel cell engine thermal management system based on the real-time pressure value, real-time temperature difference, preset pressure value, and preset temperature difference.

[0054] Specifically, the preset pressure value can be understood as the pressure value at the fuel cell cooling inlet under normal operating conditions of the fuel cell engine thermal management system. The preset temperature difference value can be understood as the real-time temperature difference between the fuel cell cooling outlet and cooling inlet under normal operating conditions of the fuel cell engine thermal management system.

[0055] For example, the preset pressure difference can be the minimum pressure value at the fuel cell cooling inlet to ensure the fuel cell engine thermal management system is operating normally. If the real-time pressure value is less than the preset pressure value, it indicates that the coolant content in the system is too low to cool the system. The preset temperature difference can be the maximum temperature difference between the fuel cell cooling outlet and cooling inlet to ensure the fuel cell engine thermal management system is operating normally. If the real-time temperature difference exceeds the preset temperature difference, it indicates that the system is not operating normally and is in an abnormal or faulty state.

[0056] Furthermore, by comparing the real-time pressure value with the preset pressure value and the real-time temperature difference with the preset temperature difference, it is possible to determine whether the thermal management system of the fuel cell engine has malfunctioned based on the comparison results, and when a malfunction occurs, the control method can be determined according to the malfunction type.

[0057] S103. Determine the control method based on the fault type.

[0058] Specifically, when the fuel cell engine thermal management system is determined to be normal based on real-time pressure value, real-time temperature difference value, preset pressure value, and preset temperature difference value, the system can be controlled to continue operating. When the system is determined to be faulty, measures such as adjusting the system's power, issuing alarms to the user, or emergency stop can be taken to achieve real-time detection and control of the fault type of the fuel cell engine thermal management system.

[0059] The fuel cell engine thermal management system control method provided in this invention can achieve real-time monitoring of the coolant pressure and the temperature difference between the fuel cell cooling outlet and the cooling inlet by acquiring the real-time pressure value of the fuel cell cooling inlet and the real-time temperature difference between the fuel cell cooling outlet and the cooling inlet. Furthermore, by comparing the collected real-time pressure value and real-time temperature difference with preset pressure values ​​and preset temperature difference values ​​under normal operating conditions of the fuel cell engine thermal management system, the fault type of the fuel cell engine thermal management system can be determined, and different control methods can be determined according to the fault type, thereby improving control efficiency and accuracy.

[0060] Optional, Figure 3 This is a flowchart illustrating another control method for a fuel cell engine thermal management system provided in an embodiment of the present invention. Figure 3 The illustrated embodiment, based on the above embodiments, provides a detailed explanation of the operation of determining the fault type of the fuel cell engine thermal management system according to the real-time pressure value, the real-time temperature difference value, the preset pressure value, and the preset temperature difference value, and determining the control mode according to the fault type. Figure 3 As shown, the control method of the fuel cell engine thermal management system includes:

[0061] S201. Obtain the real-time pressure value of the fuel cell cooling inlet and the real-time temperature difference between the fuel cell cooling outlet and the cooling inlet.

[0062] S202. If the real-time pressure value exceeds the preset pressure value and the real-time temperature difference does not exceed the preset temperature difference, the fuel cell engine thermal management system is determined to be in normal working condition.

[0063] Specifically, if the real-time pressure value exceeds the preset pressure value and the real-time temperature difference does not exceed the preset temperature difference value, it indicates that the coolant content is relatively high and the temperature difference between the fuel cell cooling outlet and the cooling inlet is lower than the preset difference value. In this case, the fuel cell engine thermal management system is judged to be in normal working condition.

[0064] S203. Based on the normal operating conditions, ensure that the fuel cell engine thermal management system maintains its current operating status and operates normally.

[0065] Specifically, since the system is determined to be in normal operating condition, the fuel cell engine thermal management system will continue to operate normally to ensure the normal performance of the system.

[0066] The fuel cell engine thermal management system control method provided in this embodiment of the invention determines that the fuel cell engine thermal management system is normal if the real-time pressure value exceeds the preset pressure value and the real-time temperature difference does not exceed the preset temperature difference value, and determines that the fuel cell engine thermal management system continues to operate normally to ensure the normal working performance of the system.

[0067] Optional, Figure 4 This is a flowchart illustrating another control method for a fuel cell engine thermal management system provided in an embodiment of the present invention. Figure 4 The illustrated embodiment, based on the above embodiments, provides a detailed explanation of the operation of determining the fault type of the fuel cell engine thermal management system according to the real-time pressure value, the real-time temperature difference value, the preset pressure value, and the preset temperature difference value, and determining the control mode according to the fault type. Figure 4 As shown, the control method of the fuel cell engine thermal management system includes:

[0068] S301. Obtain the real-time pressure value of the fuel cell cooling inlet and the real-time temperature difference between the fuel cell cooling outlet and the cooling inlet.

[0069] S302. If the real-time pressure value exceeds the preset pressure value and the real-time temperature difference exceeds the preset temperature difference, the fuel cell engine thermal management system is determined to be in an abnormal working state.

[0070] Specifically, if the real-time pressure value exceeds the preset pressure value and the real-time temperature difference exceeds the preset temperature difference, it indicates that the real-time temperature difference exceeds the preset temperature difference. However, due to the high coolant content, the fuel cell engine thermal management system can still be cooled to maintain system operation. In this case, it is determined that the fuel cell engine thermal management system is in an abnormal working state.

[0071] S303. Based on the abnormal working state, output a first control signal to prompt the user that the fuel cell engine thermal management system is abnormal and control the fuel cell engine thermal management system to output a first power; the first power is less than the output power of the fuel cell engine thermal management system when it is working normally.

[0072] For example, the first control signal may be a control signal used to prompt the user that the fuel cell engine thermal management system is malfunctioning and to control the fuel cell engine thermal management system to output a first power.

[0073] Specifically, when the system is determined to be in an abnormal operating state, a red light on the vehicle's dashboard flashes to alert the user, or a voice prompt is given. This embodiment of the invention does not specifically limit the type of alarm prompt. Furthermore, while alerting the user to the abnormality of the fuel cell engine thermal management system, the system outputs a first power, which is less than the system's output power under normal operating conditions. That is, when the fuel cell engine thermal management system is in an abnormal operating state, because the real-time temperature difference between the fuel cell cooling outlet and cooling inlet exceeds a preset temperature difference, the system's output power can be reduced, thereby reducing heat generation and maintaining normal system operation.

[0074] The fuel cell engine thermal management system control method provided in this embodiment of the invention indicates that the system is in an abnormal working state if the real-time pressure value exceeds the preset pressure value and the real-time temperature difference exceeds the preset temperature difference. However, this is not serious. By prompting the user and reducing the system's output power, the normal working performance of the system can be maintained.

[0075] Optional, Figure 5 This is a flowchart illustrating another control method for a fuel cell engine thermal management system provided in an embodiment of the present invention. Figure 5 The illustrated embodiment, based on the above embodiments, provides a detailed explanation of the operation of determining the fault type of the fuel cell engine thermal management system according to the real-time pressure value, the real-time temperature difference value, the preset pressure value, and the preset temperature difference value, and determining the control mode according to the fault type. Figure 5 As shown, the control method of the fuel cell engine thermal management system includes:

[0076] S401. Obtain the real-time pressure value of the fuel cell cooling inlet and the real-time temperature difference between the fuel cell cooling outlet and the cooling inlet.

[0077] S402. If the real-time pressure value does not exceed the preset pressure value and the real-time temperature difference does not exceed the preset temperature difference, the fuel cell engine thermal management system is determined to be in the first fault state.

[0078] Specifically, the first fault can be understood as the fuel cell engine thermal management system being in a state of minor malfunction. If the real-time pressure value does not exceed the preset pressure value and the real-time temperature difference does not exceed the preset temperature difference value, it indicates that the coolant content is too low to ensure cooling of the system, thus the system is judged to be in a state of minor malfunction.

[0079] S403: Based on the first fault condition, output a second control signal to prompt the user to check the coolant status.

[0080] Specifically, the second control signal can be a control signal used to prompt the user to check the coolant status. When the system is determined to be in a first fault state, a red light on the vehicle's dashboard can flash to prompt the user to check the coolant status. For example, the user can restore the system to normal operation by increasing the coolant level.

[0081] The fuel cell engine thermal management system control method provided by this invention determines that the fuel cell engine thermal management system has a minor fault if the real-time pressure value does not exceed the preset pressure value and the real-time temperature difference does not exceed the preset temperature difference value. The method then prompts the user to check the coolant status so that the user can increase the coolant content.

[0082] Optional, Figure 6 This is a flowchart illustrating another control method for a fuel cell engine thermal management system provided in an embodiment of the present invention. Figure 6 The illustrated embodiment, based on the above embodiments, provides a detailed explanation of the operation of determining the fault type of the fuel cell engine thermal management system according to the real-time pressure value, the real-time temperature difference value, the preset pressure value, and the preset temperature difference value, and determining the control mode according to the fault type. Figure 6 As shown, the control method of the fuel cell engine thermal management system includes:

[0083] S501. Obtain the real-time pressure value of the fuel cell cooling inlet and the real-time temperature difference between the fuel cell cooling outlet and the cooling inlet.

[0084] S502. If the real-time pressure value does not exceed the preset pressure value and the real-time temperature difference exceeds the preset temperature difference, the fuel cell engine thermal management system is determined to be in the second fault state.

[0085] Specifically, the second fault can be understood as the fuel cell engine thermal management system being in a state of serious malfunction. If the real-time pressure value does not exceed the preset pressure value but the real-time temperature difference exceeds the preset temperature difference value, it indicates that the temperature difference between the fuel cell cooling outlet and cooling inlet is large and the coolant content is insufficient. In other words, the coolant in the system is insufficient to cool the system and reduce the temperature difference, therefore the system is in a state of serious malfunction.

[0086] S503. Based on the second fault state, output a third control signal to prompt the user that the coolant is insufficient and control the fuel cell engine thermal management system to stop working.

[0087] Specifically, the third control signal can be a control signal used to alert the user that the coolant is low and to control the thermal management system of the fuel cell engine to stop working.

[0088] Furthermore, when the system is determined to be in a second fault state, a red light on the vehicle's dashboard can flash to alert the user that the coolant is insufficient and to stop the fuel cell engine's thermal management system from operating, thereby ensuring safety performance.

[0089] The fuel cell engine thermal management system control method provided in this embodiment of the invention can ensure safety performance if the real-time pressure value does not exceed the preset pressure value and the real-time temperature difference exceeds the preset temperature difference value, and the coolant in the system is insufficient to cool the system and reduce the temperature difference value. The user can be alerted by the flashing of a red light on the vehicle dashboard and the fuel cell engine thermal management system can be controlled to stop working.

[0090] Optional, Figure 7 This is a flowchart illustrating another control method for a fuel cell engine thermal management system provided in an embodiment of the present invention. Figure 7 The illustrated embodiment, based on the above embodiment, specifically describes the operations prior to obtaining the real-time pressure value of the fuel cell cooling inlet and the real-time temperature difference between the fuel cell cooling outlet and the cooling inlet, such as... Figure 7 As shown, the control method of the fuel cell engine thermal management system includes:

[0091] S601. When the fuel cell engine thermal management system is operating normally, acquire standard data; the standard data includes water pump speed, coolant inlet and outlet stack temperature, coolant inlet and outlet stack pressure, fan speed, and three-way valve opening.

[0092] Specifically, standard data can include information collected during normal operation of the fuel cell engine's thermal management system, such as water pump speed, coolant inlet and outlet temperatures, coolant inlet and outlet pressures, fan speed, and three-way valve opening. This data can affect the pressure at the fuel cell cooling inlet and the temperature difference between the fuel cell cooling outlet and the cooling inlet.

[0093] S602. After normalizing the standard data, input it into the neural network model to obtain the preset pressure value and the preset temperature difference value.

[0094] Specifically, standard data is normalized before being input into the neural network model. This ensures the standard data has a uniform scale, thus avoiding excessive differences between different features. Inputting the normalized data into the neural network model yields the preset pressure and temperature difference values. This embodiment of the invention does not specifically limit the training process of the neural network model.

[0095] S603. Obtain the real-time pressure value of the fuel cell cooling inlet and the real-time temperature difference between the fuel cell cooling outlet and the cooling inlet.

[0096] S604. Determine the fault type of the fuel cell engine thermal management system based on the real-time pressure value, real-time temperature difference, preset pressure value, and preset temperature difference.

[0097] S605. Determine the control method based on the fault type.

[0098] The fuel cell engine thermal management system control method provided in this invention utilizes a neural network model to train standard data, thereby obtaining preset pressure values ​​and preset temperature differences. Furthermore, by comparing the preset values ​​with real-time detected values, the fault type of the fuel cell engine thermal management system can be determined.

[0099] It should be noted that, Figure 8 A flowchart illustrating another control method for a fuel cell engine thermal management system provided in an embodiment of the present invention is shown below. Figure 8 As shown, the control method of the fuel cell engine thermal management system includes:

[0100] S701. Obtain the real-time pressure value of the fuel cell cooling inlet and the real-time temperature difference between the fuel cell cooling outlet and the cooling inlet.

[0101] S702. If the real-time pressure value exceeds the preset pressure value and the real-time temperature difference does not exceed the preset temperature difference, the fuel cell engine thermal management system is determined to be in normal working condition.

[0102] S703. Based on the normal operating conditions, ensure that the fuel cell engine thermal management system maintains its current operating status and operates normally.

[0103] S704. If the real-time pressure value exceeds the preset pressure value and the real-time temperature difference exceeds the preset temperature difference, the fuel cell engine thermal management system is determined to be in an abnormal working state.

[0104] S705. Based on the abnormal working state, output a first control signal to prompt the user that the fuel cell engine thermal management system is abnormal and control the fuel cell engine thermal management system to output a first power; the first power is less than the output power of the fuel cell engine thermal management system when it is working normally.

[0105] S706. If the real-time pressure value does not exceed the preset pressure value and the real-time temperature difference does not exceed the preset temperature difference, the fuel cell engine thermal management system is determined to be in the first fault state.

[0106] S707: Based on the first fault condition, output a second control signal to prompt the user to check the coolant status.

[0107] S708. If the real-time pressure value does not exceed the preset pressure value and the real-time temperature difference exceeds the preset temperature difference, the fuel cell engine thermal management system is determined to be in the second fault state.

[0108] S709. Based on the second fault state, output a third control signal to prompt the user that the coolant is insufficient and control the fuel cell engine thermal management system to stop working.

[0109] The fuel cell engine thermal management system control method provided in this embodiment of the invention determines whether the fuel cell engine thermal management system is in a normal, abnormal, minor fault, or serious fault type based on the relationship between real-time pressure value, real-time temperature difference, preset pressure value, and preset temperature difference, and determines the corresponding control method according to the fault type, thereby improving control efficiency and control accuracy.

[0110] This invention also provides a thermal management system for a fuel cell engine. Figure 9 This is a schematic diagram of the structure of a fuel cell engine thermal management system provided in an embodiment of the present invention, as shown below. Figure 9 As shown, the fuel cell engine thermal management system includes:

[0111] The data acquisition module 10 is used to acquire the real-time pressure value of the fuel cell cooling inlet and the real-time temperature difference between the fuel cell cooling outlet and the cooling inlet.

[0112] The fault type determination module 20 is used to determine the fault type of the fuel cell engine thermal management system based on the real-time pressure value, real-time temperature difference value, preset pressure value, and preset temperature difference value.

[0113] The control method determination module 30 is used to determine the control method based on the fault type.

[0114] The fuel cell engine thermal management system provided in this embodiment of the invention can acquire the real-time pressure value of the fuel cell cooling inlet and the real-time temperature difference between the fuel cell cooling outlet and the cooling inlet through a data acquisition module. Furthermore, a fault type determination module can determine the fault type of the fuel cell engine thermal management system based on the real-time pressure value, real-time temperature difference, preset pressure value, and preset temperature difference. A control method determination module can determine the control method based on the fault type. This allows for real-time monitoring of the coolant state in the fuel cell engine thermal management system, and enables the determination of the fault type based on preset values ​​and real-time monitoring values, thereby improving control efficiency and accuracy.

[0115] Figure 10This is a schematic diagram of the structure of a computer device used in a control method for a thermal management system of a fuel cell engine, according to embodiments of the present invention. The computer device is intended to represent various forms of digital computers, such as laptop computers, desktop computers, workstations, personal digital assistants, servers, blade servers, mainframe computers, and other suitable computers. The computer device can also represent various forms of mobile devices, such as personal digital processors, cellular phones, smartphones, wearable devices (e.g., helmets, glasses, watches, etc.), and other similar computing devices. The components shown herein, their connections and relationships, and their functions are merely illustrative and are not intended to limit the implementation of the invention described and / or claimed herein.

[0116] like Figure 10 As shown, the computer device 50 includes at least one processor 51 and a memory, such as a read-only memory (ROM) 52 and a random access memory (RAM) 53, communicatively connected to the at least one processor 51. The memory stores computer programs executable by the at least one processor. The processor 51 can perform various appropriate actions and processes based on the computer programs stored in the ROM 52 or loaded from storage unit 58 into the RAM 53. The RAM 53 may also store various programs and data required for the operation of the computer device 50. The processor 51, ROM 52, and RAM 53 are interconnected via a bus 54. An input / output (I / O) interface 55 is also connected to the bus 54.

[0117] Multiple components in computer device 50 are connected to I / O interface 55, including: input unit 56, such as keyboard, mouse, etc.; output unit 57, such as various types of monitors, speakers, etc.; storage unit 58, such as disk, optical disk, etc.; and communication unit 59, such as network card, modem, wireless transceiver, etc. Communication unit 59 allows computer device 50 to exchange information / data with other devices through computer networks such as the Internet and / or various telecommunications networks.

[0118] Processor 51 can be a variety of general-purpose and / or special-purpose processing components with processing and computing capabilities. Some examples of processor 51 include, but are not limited to, a central processing unit (CPU), a graphics processing unit (GPU), various special-purpose artificial intelligence (AI) computing chips, various processors running machine learning model algorithms, a digital signal processor (DSP), and any suitable processor, controller, microcontroller, etc. Processor 51 performs the various methods and processes described above, for example, applied to the control methods of a fuel cell engine thermal management system.

[0119] In some embodiments, the control method for the thermal management system of a fuel cell engine can be implemented as a computer program tangibly contained in a computer-readable storage medium, such as storage unit 58. In some embodiments, part or all of the computer program can be loaded and / or installed on a computer device 50 via read-only memory (ROM) 52 and / or communication unit 59. When the computer program is loaded into random access memory (RAM) 53 and executed by processor 51, one or more steps of the control method for the thermal management system of a fuel cell engine described above can be performed. Alternatively, in other embodiments, processor 51 can be configured to perform the control method for the thermal management system of a fuel cell engine by any other suitable means (e.g., by means of firmware).

[0120] Various embodiments of the systems and techniques described above herein can be implemented in digital electronic circuit systems, integrated circuit systems, field-programmable gate arrays (FPGAs), application-specific integrated circuits (ASICs), application-specific standard products (ASSPs), systems-on-a-chip (SoCs), payload-programmable logic devices (CPLDs), computer hardware, firmware, software, and / or combinations thereof. These various embodiments may include implementations in one or more computer programs that can be executed and / or interpreted on a programmable system including at least one programmable processor, which may be a dedicated or general-purpose programmable processor, capable of receiving data and instructions from a storage system, at least one input device, and at least one output device, and transmitting data and instructions to the storage system, the at least one input device, and the at least one output device.

[0121] Computer programs used to implement the methods of the present invention may be written in any combination of one or more programming languages. These computer programs may be provided to a processor of a general-purpose computer, a special-purpose computer, or other programmable data processing device, such that when executed by the processor, the computer programs cause the functions / operations specified in the flowcharts and / or block diagrams to be performed. The computer programs may be executed entirely on a machine, partially on a machine, or as a standalone software package, partially on a machine and partially on a remote machine, or entirely on a remote machine or server.

[0122] In the context of embodiments of the present invention, a computer-readable storage medium may be a tangible medium that may contain or store a computer program for use by or in conjunction with an instruction execution system, apparatus, or device. A computer-readable storage medium may include, but is not limited to, electronic, magnetic, optical, electromagnetic, infrared, or semiconductor systems, apparatus, or devices, or any suitable combination thereof. Alternatively, a computer-readable storage medium may be a machine-readable signal medium. More specific examples of machine-readable storage media include electrical connections based on 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 fibers, portable compact disk read-only memory (CD-ROM), optical storage devices, magnetic storage devices, or any suitable combination thereof.

[0123] To provide interaction with a user, the systems and techniques described herein can be implemented on a computer device having: a display device (e.g., a CRT (cathode ray tube) or LCD (liquid crystal display) monitor) for displaying information to the user, and a keyboard and pointing device (e.g., a mouse or trackball) through which the user provides input to the electronic device. Other types of devices can also be used to provide interaction with the user; for example, feedback provided to the user can be any form of sensory feedback (e.g., visual feedback, auditory feedback, or tactile feedback); and input from the user can be received in any form (including sound input, voice input, or tactile input).

[0124] The systems and technologies described herein can be implemented in computing systems that include backend components (e.g., as data servers), middleware components (e.g., application servers), or frontend components (e.g., user computers with graphical user interfaces or web browsers through which users can interact with implementations of the systems and technologies described herein), or any combination of such backend, middleware, or frontend components. The components of the system can be interconnected via digital data communication of any form or medium (e.g., communication networks). Examples of communication networks include local area networks (LANs), wide area networks (WANs), blockchain networks, and the Internet.

[0125] A computing system can include clients and servers. Clients and servers are generally located far apart and typically interact through communication networks. The client-server relationship is created by computer programs running on the respective computers and having a client-server relationship with each other. The server can be a cloud server, also known as a cloud computing server or cloud host, which is a hosting product within the cloud computing service system. It addresses the shortcomings of traditional physical hosts and Virtual Private Server (VPS) services, such as high management difficulty and weak business scalability.

[0126] Note that the above description is merely a preferred embodiment of the present invention and the technical principles employed. Those skilled in the art will understand that the present invention is not limited to the specific embodiments described herein, and various obvious changes, readjustments, combinations, and substitutions can be made without departing from the scope of protection of the present invention. Therefore, although the present invention has been described in detail through the above embodiments, the present invention is not limited to the above embodiments, and may include many other equivalent embodiments without departing from the concept of the present invention, the scope of which is determined by the scope of the appended claims.

Claims

1. A control method for a thermal management system of a fuel cell engine, characterized in that, include: Obtain the real-time pressure value at the fuel cell cooling inlet and the real-time temperature difference between the fuel cell cooling outlet and the cooling inlet; The fault type of the fuel cell engine thermal management system is determined based on the real-time pressure value, the real-time temperature difference value, the preset pressure value, and the preset temperature difference value, including: If the real-time pressure value exceeds the preset pressure value and the real-time temperature difference does not exceed the preset temperature difference value, the fuel cell engine thermal management system is determined to be in normal working condition. Determining the control method based on the fault type includes: Based on the normal operating state, the fuel cell engine thermal management system is determined to maintain its current operating state and continue to operate. If the real-time pressure value exceeds the preset pressure value and the real-time temperature difference exceeds the preset temperature difference, the fuel cell engine thermal management system is determined to be in an abnormal working state. Based on the abnormal operating state, a first control signal is output to prompt the user that the fuel cell engine thermal management system is abnormal and to control the fuel cell engine thermal management system to output a first power; the first power is less than the output power of the fuel cell engine thermal management system when it is operating normally. If the real-time pressure value does not exceed the preset pressure value and the real-time temperature difference does not exceed the preset temperature difference, the fuel cell engine thermal management system is determined to be in the first fault state. Based on the first fault status, a second control signal is output to prompt the user to check the coolant status; If the real-time pressure value does not exceed the preset pressure value and the real-time temperature difference exceeds the preset temperature difference, the fuel cell engine thermal management system is determined to be in a second fault state. Based on the second fault status, a third control signal is output to prompt the user that the coolant is insufficient and to control the thermal management system of the fuel cell engine to stop working.

2. The control method for the thermal management system of a fuel cell engine according to claim 1, characterized in that, Before obtaining the real-time pressure value of the fuel cell cooling inlet and the real-time temperature difference between the fuel cell cooling outlet and the cooling inlet, the following steps are also included: When the fuel cell engine thermal management system is working normally, it acquires preset pressure values ​​and preset temperature differences.

3. The control method for the thermal management system of a fuel cell engine according to claim 2, characterized in that, When the fuel cell engine thermal management system is operating normally, preset pressure values ​​and preset temperature differences are acquired, including: When the fuel cell engine thermal management system is operating normally, standard data is acquired; the standard data includes: water pump speed, coolant inlet and outlet stack temperature, coolant inlet and outlet stack pressure, fan speed, and three-way valve opening. After normalizing the standard data, it is input into the neural network model to obtain the preset pressure value and the preset temperature difference value.

4. A fuel cell engine thermal management system, used to execute the fuel cell engine thermal management system control method as described in any one of claims 1-3, characterized in that, include: The data acquisition module is used to acquire the real-time pressure value of the fuel cell cooling inlet and the real-time temperature difference between the fuel cell cooling outlet and the cooling inlet. The fault type determination module is used to determine the fault type of the fuel cell engine thermal management system based on the real-time pressure value, the real-time temperature difference value, the preset pressure value, and the preset temperature difference value. The control method determination module is used to determine the control method based on the fault type.

5. A computer device, comprising a memory, a processor, and a computer program stored in the memory and executable on the processor, characterized in that, When the processor executes the program, it implements the fuel cell engine thermal management system control method as described in any one of claims 1-3.

6. A computer-readable storage medium having a computer program stored thereon, characterized in that, When executed by the processor, the program implements the control method for the thermal management system of the fuel cell engine as described in any one of claims 1-3.

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