Hybrid vehicle hybrid leakage detection method, hybrid vehicle
By monitoring the engine rail pressure drop and torque difference, calculating the hydrogen consumption and target output torque, the problems of difficult layout and high cost of hydrogen leak detection in hybrid vehicles are solved, efficient and accurate hydrogen leak judgment is achieved, and the system design is simplified.
Patent Information
- Application Number
- CN202510819605.1
- Authority / Receiving Office
- CN · China
- Patent Type
- Applications(China)
- Current Assignee / Owner
- Filing Date
- 2025-06-18
- Publication Date
- 2025-09-09
AI Technical Summary
Hydrogen leak detection in hydrogen engine fuel supply systems in existing hybrid vehicles relies on multiple hydrogen concentration sensors, which results in difficult layout, high cost and complex maintenance.
By monitoring the engine's rail pressure drop and torque difference, the hydrogen consumption and target output torque are calculated, and a mapping curve is used to determine hydrogen leakage, avoiding the need to install additional hydrogen concentration sensors.
Accurate hydrogen leak detection is achieved, hardware costs and maintenance difficulty are reduced, system design is simplified, and safety is improved.
Smart Images
Figure CN120606816A_ABST
Abstract
Description
Technical Field
[0001] The present application relates to the technical field of hybrid vehicles, and in particular to a method, device, medium and program for detecting hydrogen leakage in a hybrid vehicle. Background Art
[0002] As a clean and efficient energy source, hydrogen plays an increasingly important role in modern transportation power systems. The use of hydrogen engines, particularly in hybrid vehicles, can significantly reduce environmental pollution and lower dependence on fossil fuels. However, hydrogen is an extremely flammable and explosive gas. Leaks in supply pipelines can not only cause fires or explosions, but also pose serious threats to the environment and human health.
[0003] Prior art methods for leak detection in hybrid vehicle hydrogen engine fuel supply systems primarily rely on deploying multiple hydrogen concentration sensors near the supply pipeline. While this method effectively monitors hydrogen leaks, it is costly to implement and requires complex installation and layout around the entire supply pipeline, making installation and placement difficult. Furthermore, the sensors' response speed, maintenance costs, and adaptability to specific environmental conditions pose significant limitations. Summary of the Invention
[0004] The present application provides a method, device, hybrid vehicle, storage medium and program for detecting hydrogen leakage in a hybrid vehicle to solve the problems in the related art of arranging multiple hydrogen concentration sensors near the supply pipeline of the hydrogen engine fuel supply system in the hybrid vehicle to detect hydrogen leakage, which leads to difficult arrangement and high cost.
[0005] A first aspect of the present application provides a method for detecting hydrogen leakage in a hybrid vehicle, comprising the following steps: obtaining a rail pressure drop of an engine in the hybrid vehicle at a current moment; if the rail pressure of the engine drops to a preset threshold, calculating the mass of hydrogen consumed by the engine from the time of operation to the current moment; calculating a target output torque of the engine at the current moment based on the hydrogen mass, and calculating a torque difference between the actual output torque of the engine at the current moment and the target output torque; and determining a hydrogen leakage detection result of the engine based on the torque difference.
[0006] Optionally, the calculating the mass of hydrogen consumed by the engine from the time the engine is running to the current time includes: obtaining the total volume of the supply pipeline, the initial pressure value and the first temperature of the supply pipeline when the engine is stopped, and the second temperature of the supply pipeline when the engine is running; and calculating the mass of hydrogen consumed within the target time from the time the engine is running to the time the rail pressure drops to a preset threshold based on the total volume of the supply pipeline, the first temperature, the second temperature, and the initial pressure value.
[0007] Optionally, calculating the target output torque of the engine at the current moment based on the hydrogen mass includes: inputting the hydrogen mass into an objective function, the objective function outputting a corresponding torque value, wherein the objective function is a mapping function of fuel mass and torque; and correcting the torque value according to the air-fuel ratio efficiency of the engine to obtain a corresponding target torque value.
[0008] Optionally, determining the hydrogen leakage detection result of the engine based on the torque difference includes: if the torque difference is less than a preset threshold, determining that hydrogen has not leaked; if the torque difference is greater than or equal to a preset threshold, determining that hydrogen has leaked.
[0009] Optionally, after determining the hydrogen leakage detection result of the engine according to the torque difference, the method further comprises: if hydrogen leakage is determined, querying a mapping curve between leakage amount and torque difference according to the torque difference to determine the hydrogen leakage amount.
[0010] Optionally, before obtaining the rail pressure drop of the engine at the current moment, the method includes: establishing a mapping curve between the torque difference and the leakage amount, wherein the mapping curve is generated by multiple test simulations.
[0011] The second embodiment of the present application provides a hydrogen leakage detection device for a hybrid vehicle, comprising: an acquisition module for acquiring the rail pressure drop of the engine in the hybrid vehicle at the current moment, and if the rail pressure of the engine drops to a preset threshold, calculating the mass of hydrogen consumed by the engine from the time of operation to the current moment; a calculation module for calculating the target output torque of the engine at the current moment based on the hydrogen mass, and calculating the torque difference between the actual output torque of the engine at the current moment and the target output torque; a determination module for determining the hydrogen leakage detection result of the engine based on the torque difference. Optionally, A third aspect of the present application provides a hybrid vehicle, comprising: a memory, a processor, and a computer program stored in the memory and executable on the processor, wherein the processor executes the program to perform the hydrogen leakage detection method for the hybrid vehicle as described in the above embodiment.
[0012] A fourth aspect of the present application provides a computer-readable storage medium having a computer program stored thereon, which is executed by a processor to perform the hydrogen leakage detection method for a hybrid vehicle as described in the above embodiment.
[0013] A fifth aspect of the present application provides a computer program product, including a computer program or instructions, which, when executed, implements the hydrogen leakage detection method for a hybrid vehicle as described in the above embodiments.
[0014] Therefore, this application has at least the following beneficial effects: In an embodiment of the present application, when the rail pressure of the engine drops to a preset threshold, the mass of hydrogen consumed by the engine from the time of operation to the current moment can be calculated; the target output torque of the engine at the current moment can be calculated based on the hydrogen mass, and the torque difference between the actual output torque of the engine at the current moment and the target output torque can be calculated; the hydrogen leak detection result of the engine can be determined based on the torque difference, thereby using the data during engine operation to monitor the hydrogen consumption and the corresponding torque changes in real time, thereby more accurately determining whether there is a leak, without the need to install an additional complex hydrogen concentration sensor, reducing hardware costs and maintenance difficulties, and simplifying the overall design of the system. Additional aspects and advantages of the present application will be given in part in the description below, and in part will become apparent from the description below, or will be learned through practice of the present application. BRIEF DESCRIPTION OF THE DRAWINGS
[0015] The above and / or additional aspects and advantages of the present application will become apparent and easily understood from the following description of the embodiments in conjunction with the accompanying drawings, in which: Figure 1 This is a flow chart of a method for detecting hydrogen leakage in a hybrid vehicle according to an embodiment of the present application; Figure 2 A schematic diagram of a hydrogen supply pipeline provided according to an embodiment of the present application; Figure 3 This is an example diagram of a hydrogen leakage detection device for a hybrid vehicle provided according to an embodiment of the present application; Figure 4 Schematic diagram of the structure of a hybrid vehicle provided according to an embodiment of the present application. DETAILED DESCRIPTION
[0016] The following describes in detail embodiments of the present application, examples of which are shown in the accompanying drawings, wherein the same or similar reference numerals throughout represent the same or similar elements or elements having the same or similar functions. The embodiments described below with reference to the accompanying drawings are exemplary and are intended to be used to explain the present application, and should not be construed as limiting the present application.
[0017] The present application relates to the field of hybrid electric control systems for hydrogen engines, and addresses the problem of leak detection in the fuel supply system of hydrogen engines in hybrid configurations. Leakage of hydrogen engine fuel can lead to a series of serious consequences, including fire, explosion, environmental pollution, and health hazards. Hydrogen is a flammable and explosive gas. Once leaked, it can easily cause an explosion when mixed with air and encounters open flames or high temperatures. In addition, hydrogen leakage can also have a negative impact on the environment and climate. Traditional detection methods require the arrangement of multiple hydrogen concentration sensors near the supply pipeline, which is costly and needs to be arranged near the entire supply pipeline, making the selection of installation locations and arrangements difficult.
[0018] The following describes a method, device, hybrid vehicle, storage medium, and program for detecting hydrogen leakage in a hybrid vehicle according to embodiments of the present application with reference to the accompanying drawings.
[0019] Specifically, Figure 1 A schematic flow chart of a method for detecting hydrogen leakage in a hybrid vehicle provided in an embodiment of the present application.
[0020] like Figure 1 As shown, the method for detecting hydrogen leakage of a hybrid vehicle includes the following steps: In step S101 , the rail pressure drop of the engine in the hybrid vehicle at the current moment is obtained. If the rail pressure of the engine drops to a preset threshold, the mass of hydrogen consumed by the engine from the running moment to the current moment is calculated.
[0021] It can be understood that the embodiments of the present application can monitor the changes in rail pressure during engine operation in a hybrid vehicle and calculate the hydrogen consumption in a specific time period by monitoring the engine rail pressure drop, so as to better manage and plan the use of hydrogen resources, improve energy utilization efficiency, and reduce unnecessary waste.
[0022] In the embodiment of the present application, before obtaining the rail pressure drop of the engine at the current moment, the method includes: establishing a mapping curve between the torque difference and the leakage amount, wherein the mapping curve is generated by multiple test simulations.
[0023] It can be understood that the mapping curve between the torque difference and the leakage amount generated by multiple test simulations in the embodiment of the present application is used to judge the leakage situation based on the torque difference in subsequent actual operations. The specific leakage amount can be evaluated more accurately based on the torque difference, rather than relying solely on the qualitative judgment of whether there is a leakage.
[0024] In an embodiment of the present application, calculating the mass of hydrogen consumed by the engine from the time the engine is running to the current time includes: obtaining the total volume of the supply line, the initial pressure value and the first temperature of the supply line when the engine is stopped, and the second temperature of the supply line when the engine is running; and calculating the mass of hydrogen consumed during the target time from the time the engine is running to the time the rail pressure drops to a preset threshold based on the total volume, the first temperature, the second temperature, and the initial pressure value of the supply line.
[0025] It can be understood that the embodiments of the present application can more accurately understand the actual use of hydrogen by accurately measuring and calculating the hydrogen consumption of the engine in a specific time period. By comparing the hydrogen consumption obtained based on theoretical calculations with the actual torque generated, it can more accurately determine whether there is a hydrogen leak and the extent of the leak, thereby improving the reliability of leak detection, so as to facilitate the timely discovery and handling of hydrogen leakage problems, prevent safety accidents caused by leakage, and ensure the safety of the vehicle and its occupants.
[0026] In step S102 , the target output torque of the engine at the current moment is calculated according to the mass of hydrogen, and the torque difference between the actual output torque of the engine at the current moment and the target output torque is calculated.
[0027] It can be understood that the embodiments of the present application can effectively identify whether there is a hydrogen leak by comparing the torque difference between the target output torque and the actual output torque, thereby promptly discovering and handling the hydrogen leakage problem, avoiding safety hazards caused by leakage, such as fire or explosion, and ensuring the safety of the vehicle and its occupants.
[0028] In an embodiment of the present application, the target output torque of the engine at the current moment is calculated based on the hydrogen mass, including: inputting the hydrogen mass into an objective function, and the objective function outputting a corresponding torque value, wherein the objective function is a mapping function of fuel mass and torque; and correcting the torque value according to the engine's air-fuel ratio efficiency to obtain a corresponding target torque value.
[0029] It is understood that in the embodiments of this application, varying air-fuel ratios can lead to variations in combustion efficiency, which in turn affects actual output torque. By introducing an air-fuel ratio efficiency correction factor, the theoretical torque value can be adjusted more closely to actual conditions, improving prediction accuracy. Comparing the corrected target torque value with the actual output torque allows for a more accurate determination of the presence and severity of hydrogen leaks.
[0030] In step S103 , a hydrogen leakage detection result of the engine is determined according to the torque difference.
[0031] It can be understood that the embodiment of the present application can determine the hydrogen leakage detection result of the engine based on the torque difference, so as to more accurately judge whether there is a leak, without the need to install additional complex hydrogen concentration sensors, reducing hardware costs and maintenance difficulties, and simplifying the overall design of the system.
[0032] In an embodiment of the present application, the hydrogen leakage detection result of the engine is determined based on the torque difference, including: if the torque difference is less than a preset threshold, it is determined that there is no hydrogen leakage; if the torque difference is greater than or equal to the preset threshold, it is determined that there is hydrogen leakage.
[0033] Among them, the preset threshold can be set according to actual needs and is not specifically limited.
[0034] It can be understood that the embodiment of the present application can quickly and effectively determine whether there is a leak in the hydrogen supply system by setting a reasonable torque difference threshold. This method is direct and easy to implement, and can accurately reflect whether hydrogen fully participates in the combustion process as expected, thereby ensuring the accuracy of the detection results.
[0035] In an embodiment of the present application, after determining the hydrogen leakage detection result of the engine according to the torque difference, the method includes: if hydrogen leakage is determined, querying a mapping curve between leakage amount and torque difference according to the torque difference to determine the hydrogen leakage amount.
[0036] It can be understood that the embodiment of the present application can determine the hydrogen leakage amount based on the mapping curve of the leakage amount and the torque difference according to the torque difference query, which helps to more accurately assess the severity of the problem and take appropriate measures accordingly. Timely and accurate grasp of the leakage amount helps to quickly take necessary safety measures to prevent the occurrence or expansion of accidents and ensure the safety of the vehicle and its occupants.
[0037] According to the hydrogen leak detection method for a hybrid vehicle proposed in an embodiment of the present application, when the engine rail pressure drops to a preset threshold value, the mass of hydrogen consumed by the engine from the time of operation to the current moment is calculated; the target output torque of the engine at the current moment is calculated based on the hydrogen mass, and the torque difference between the actual output torque of the engine at the current moment and the target output torque is calculated; the hydrogen leak detection result of the engine is determined based on the torque difference, so that the hydrogen consumption and the corresponding torque changes are monitored in real time using the data during engine operation, so as to more accurately determine whether there is a leak. There is no need to install an additional complex hydrogen concentration sensor, which reduces hardware costs and maintenance difficulties, and simplifies the overall design of the system.
[0038] The following will be combined Figure 2 The hydrogen leakage detection method for hybrid vehicles of the present application is described in detail as follows: 1. Get the engine running status When the engine shutdown process of a hybrid vehicle is detected, the hydrogen leak detection function is activated.
[0039] 2. Turn off the hydrogen supply. The total volume of the pipeline is: V1 = A + B + C + D At this time, the pressure measured by the pressure sensor is P1 3. Activate hydrogen injection, the engine runs and generates torque until the rail pressure drops to P0 4. According to the ideal gas state equation PV=mRT / M m is the gas mass, R is the molar gas constant, T is the temperature, and M is the molar mass of hydrogen gas.
[0040] Derived from the above ideal gas state equation, the mass of hydrogen consumed in this process δm is calculated δm =
[0041] 5. The torque generated by burning a specific mass of hydrogen at a specific air-fuel ratio is a function of the fuel mass. Tq = f(δm), where Tq is the target output torque; 6. Considering the efficiency correction under different air-fuel ratios (η can be measured on the bench), the final theoretical torque is as follows Tq1= f(δm)*η, Tq1 is the corrected target output torque; 7. The actual torque generated by the vehicle is calculated through the hybrid generator feedback to obtain Tq0 8. The leakage situation can be evaluated based on the difference between Tq1 and Tq0 During the development phase, by simulating leakage, different Tq0 can be measured and a curve showing the relationship between leakage and torque difference can be obtained.
[0042] Leak (air) = f (Tq1–Tq0). By querying, the torque-based leakage diagnosis function is completed.
[0043] This function can serve as a supplementary function for hydrogen concentration detection, and can also realize independent hydrogen leakage concentration diagnosis while meeting the diagnostic coverage.
[0044] In summary, the hydrogen concentration sensor leak detection method is applicable to hybrid vehicles using hydrogen internal combustion engines. By comparing the total torque theoretically generated by a fixed mass of hydrogen with the actual torque generated, it can determine whether there is a leak in the supply pipeline. Traditional hydrogen internal combustion engine vehicles cannot apply this technology because the low-pressure engine does not have active anti-drag and torque feedback functions.
[0045] Next, a hydrogen leakage detection device for a hybrid vehicle according to an embodiment of the present application will be described with reference to the accompanying drawings.
[0046] Figure 3 4 is a block diagram of a hydrogen leakage detection device for a hybrid vehicle according to an embodiment of the present application.
[0047] like Figure 3 As shown, the hydrogen leakage detection device 10 for a hybrid vehicle includes: an acquisition module 100 , a calculation module 200 and a determination module 300 .
[0048] Among them, the acquisition module 100 is used to obtain the rail pressure drop of the engine in the hybrid vehicle at the current moment. If the engine rail pressure drops to a preset threshold, the mass of hydrogen consumed by the engine from the time of operation to the current moment is calculated; the calculation module 200 is used to calculate the target output torque of the engine at the current moment based on the hydrogen mass, and calculate the torque difference between the actual output torque of the engine at the current moment and the target output torque; the determination module 300 is used to determine the result of the engine hydrogen leak detection based on the torque difference.
[0049] It should be noted that the above explanations of the embodiment of the method for detecting hydrogen leakage of a hybrid vehicle are also applicable to the hydrogen leakage detection device for a hybrid vehicle of this embodiment, and will not be repeated here.
[0050] According to the hydrogen leak detection device for a hybrid vehicle proposed in an embodiment of the present application, when the rail pressure of the engine drops to a preset threshold value, the mass of hydrogen consumed by the engine from the time of operation to the current time is calculated; the target output torque of the engine at the current time is calculated based on the hydrogen mass, and the torque difference between the actual output torque of the engine at the current time and the target output torque is calculated; the hydrogen leak detection result of the engine is determined based on the torque difference, so that the hydrogen consumption and the corresponding torque changes are monitored in real time using the data when the engine is running, so as to more accurately determine whether there is a leak. There is no need to install an additional complex hydrogen concentration sensor, which reduces hardware costs and maintenance difficulties, and simplifies the overall design of the system.
[0051] Figure 4 This is a schematic diagram of the structure of a hybrid vehicle provided in an embodiment of the present application. The hybrid vehicle may include: Memory 401 , processor 402 , and computer programs stored in the memory 401 and executable on the processor 402 .
[0052] When the processor 402 executes the program, the method for detecting hydrogen leakage of a hybrid vehicle provided in the above embodiment is implemented.
[0053] Furthermore, the hybrid vehicle further comprises: The communication interface 403 is used for communication between the memory 401 and the processor 402 .
[0054] The memory 401 is used to store computer programs that can be run on the processor 402 .
[0055] The memory 401 may include a high-speed RAM memory, and may also include a non-volatile memory (non-volatile memory), such as at least one disk memory.
[0056] If the memory 401, processor 402, and communication interface 403 are implemented independently, the communication interface 403, memory 401, and processor 402 can be interconnected via a bus and communicate with each other. The bus can be an Industry Standard Architecture (ISA) bus, a Peripheral Component Interconnect (PCI) bus, or an Extended Industry Standard Architecture (EISA) bus. The bus can be divided into an address bus, a data bus, a control bus, etc. For ease of representation, Figure 4 Only one thick line is used in the diagram, but this does not mean that there is only one bus or one type of bus.
[0057] Optionally, in a specific implementation, if the memory 401, the processor 402 and the communication interface 403 are integrated on a chip, the memory 401, the processor 402 and the communication interface 403 can communicate with each other through an internal interface.
[0058] The processor 402 may be a central processing unit (CPU), an application specific integrated circuit (ASIC), or one or more integrated circuits configured to implement the embodiments of the present application.
[0059] An embodiment of the present application further provides a computer-readable storage medium having a computer program or instruction stored thereon. When the computer program or instruction is executed by a processor, the above-mentioned method for detecting hydrogen leakage in a hybrid vehicle is implemented.
[0060] An embodiment of the present application further provides a computer program product, including a computer program or instructions, which, when executed, implements the above-mentioned method for detecting hydrogen leakage in a hybrid vehicle.
[0061] In the description of this specification, the description with reference to the terms "one embodiment", "some embodiments", "example", "specific example", or "some examples" means that the specific features, structures, materials or characteristics described in conjunction with the embodiment or example are included in at least one embodiment or example of the present application. In this specification, the schematic representations of the above terms do not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials or characteristics described can be combined in any one or N embodiments or examples in a suitable manner. In addition, those skilled in the art can combine and combine different embodiments or examples described in this specification and features of different embodiments or examples without contradiction.
[0062] Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be understood to indicate or imply relative importance or implicitly specify the number of technical features indicated. Thus, a feature specified as "first" or "second" may explicitly or implicitly include at least one such feature. In the description of this application, "N" means at least two, for example, two, three, etc., unless otherwise specifically defined.
[0063] Any process or method description in a flowchart or otherwise described herein may be understood to represent a module, fragment or portion of code comprising one or N executable instructions for implementing a custom logical function or process step, and the scope of the preferred embodiments of the present application includes alternative implementations in which functions may be performed in a different order than shown or discussed, including performing functions in a substantially simultaneous manner or in a reverse order depending on the functions involved, which should be understood by those skilled in the art to which the embodiments of the present application pertain.
[0064] It should be understood that various parts of this application can be implemented using hardware, software, firmware, or a combination thereof. In the above embodiment, the N steps or methods can be implemented using software or firmware stored in a memory and executed by a suitable instruction execution system. For example, if implemented using hardware, as in another embodiment, it can be implemented using any one or a combination of the following technologies known in the art: discrete logic circuits having logic gate circuits for implementing logical functions on data signals, application-specific integrated circuits having suitable combinational logic gate circuits, programmable gate arrays (PGAs), field-programmable gate arrays (FPGAs), etc.
[0065] Those skilled in the art will understand that all or part of the steps in the method of the above embodiment can be completed by instructing related hardware through a program, and the program can be stored in a computer-readable storage medium. When the program is executed, it includes one or a combination of the steps of the method embodiment.
Claims
1. A method for detecting hydrogen leakage in a hybrid vehicle, characterized in that: The following steps are involved: Obtaining a rail pressure drop of an engine in a hybrid vehicle at a current moment, and if the rail pressure of the engine drops to a preset threshold, calculating a mass of hydrogen consumed by the engine from a running moment to the current moment; calculating a target output torque of the engine at a current moment according to the mass of hydrogen, and calculating a torque difference between the actual output torque of the engine at a current moment and the target output torque; A hydrogen leakage detection result of the engine is determined according to the torque difference.
2. The method for detecting hydrogen leakage of a hybrid vehicle according to claim 1, wherein: The calculating of the mass of hydrogen consumed by the engine from the time of operation to the current time includes: Obtaining a total volume of the supply line, an initial pressure value and a first temperature of the supply line when the engine is stopped, and a second temperature of the supply line when the engine is running; The mass of hydrogen consumed during the target time from the moment the engine starts running to the moment the rail pressure drops to a preset threshold is calculated based on the total volume of the supply pipeline, the first temperature, the second temperature, and the initial pressure value.
3. The method for detecting hydrogen leakage of a hybrid vehicle according to claim 1, wherein: Calculating the target output torque of the engine at the current moment according to the hydrogen mass includes: Inputting the hydrogen mass into an objective function, the objective function outputting a corresponding torque value, wherein the objective function is a mapping function of fuel mass and torque; The torque value is corrected according to the air-fuel ratio efficiency of the engine to obtain a corresponding target torque value.
4. The method for detecting hydrogen leakage of a hybrid vehicle according to claim 1, wherein: Determining a hydrogen leakage detection result of the engine according to the torque difference includes: If the torque difference is less than a preset threshold, it is determined that there is no hydrogen leakage; If the torque difference is greater than or equal to a preset threshold, it is determined that hydrogen is leaking.
5. The method for detecting hydrogen leakage of a hybrid vehicle according to claim 4, wherein: After determining the hydrogen leakage detection result of the engine according to the torque difference, the method further includes: If hydrogen leakage is determined, the hydrogen leakage amount is determined by querying a mapping curve between leakage amount and torque difference according to the torque difference.
6. The method for detecting hydrogen leakage of a hybrid vehicle according to claim 1, wherein: Before obtaining the rail pressure drop of the engine at the current moment, include: A mapping curve between the torque difference and the leakage amount is established, wherein the mapping curve is generated by multiple test simulations.
7. A hydrogen leak detection device for a hybrid vehicle, characterized in that: include: an acquisition module, configured to acquire a rail pressure drop of an engine in a hybrid vehicle at a current moment, and if the rail pressure of the engine drops to a preset threshold, calculate a mass of hydrogen consumed by the engine from a running moment to the current moment; a calculation module, configured to calculate a target output torque of the engine at a current moment according to the mass of the hydrogen, and calculate a torque difference between the actual output torque of the engine at a current moment and the target output torque; A determination module is used to determine a hydrogen leakage detection result of the engine according to the torque difference.
8. A hybrid vehicle, characterized in that: include: 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 method for detecting hydrogen leakage of a hybrid vehicle according to any one of claims 1 to 6.
9. A computer-readable storage medium having a computer program stored thereon, characterized in that: The program is executed by a processor to implement the hydrogen leakage detection method for a hybrid vehicle as claimed in any one of claims 1 to 6.
10. A computer program product, characterized in that The method comprises a computer program, which is used to implement the method for detecting hydrogen leakage of a hybrid vehicle according to any one of claims 1 to 6 when the computer program is executed by a processor.