A method, device and storage medium for calculating the remaining amount of hydrogen in a hydrogen storage system

Abstract

The present application relates to a method, device and storage medium for calculating the remaining amount of hydrogen in a hydrogen storage system. The method includes: after the fuel cell vehicle is powered on, determining whether the hydrogen storage system of the fuel cell vehicle starts to supply hydrogen. If it does not start to supply hydrogen, determining whether the power-on time exceeds a preset time; if it does not exceed the preset time, using the remaining amount of hydrogen stored in the previous driving cycle of the fuel cell vehicle as the current remaining amount of hydrogen; if it has exceeded the preset time, calculating the current remaining amount of hydrogen based on a first formula; if the hydrogen storage system has started to supply hydrogen, calculating the current hydrogen consumption according to a second formula, and then calculating the current remaining amount of hydrogen based on the current hydrogen consumption; sending the current remaining amount of hydrogen to the instrument panel of the fuel cell vehicle for storage when the fuel cell vehicle is powered off. The present application can calculate the actual remaining amount of hydrogen in real time, ensure the accuracy of the remaining amount of hydrogen displayed on the instrument, and improve the calculation accuracy of the remaining amount of hydrogen.

Description

Technical Field

[0001] The present application relates to the field of fuel cell technology, and more specifically, to a method, device and storage medium for calculating the remaining amount of hydrogen in a hydrogen storage system. Background Art

[0002] The remaining amount of hydrogen in a hydrogen fuel cell vehicle is usually displayed on the dashboard, and the remaining amount of hydrogen is usually calculated by the hydrogen storage system based on the values ​​of the temperature and pressure sensors installed at the mouth of the hydrogen storage bottle, and then calculated using a formula.

[0003] However, in actual application, after the hydrogen storage system starts to supply hydrogen, due to the influence of sensor accuracy, the pressure or temperature measured by the sensor may change very little or even remain unchanged over a period of time. Therefore, when the actual hydrogen is consumed, the remaining amount of hydrogen remains unchanged, resulting in inaccurate hydrogen remaining amount displayed on the instrument. Summary of the invention

[0004] Based on the above technical problems, the present invention aims to determine the actual state of the fuel cell vehicle, obtain the current remaining hydrogen amount according to the different states of the fuel cell vehicle, and calculate the actual remaining hydrogen amount in real time to ensure the accuracy of the remaining hydrogen amount displayed on the instrument.

[0005] A first aspect of the present invention provides a method for calculating the remaining amount of hydrogen in a hydrogen storage system, comprising:

[0006] After the fuel cell vehicle is powered on, determine whether the hydrogen storage system of the fuel cell vehicle starts to supply hydrogen. If it does not start to supply hydrogen, determine whether the power-on time exceeds the preset time;

[0007] If the preset time has not been exceeded, the remaining amount of hydrogen stored in the last driving cycle of the fuel cell vehicle is used as the current remaining amount of hydrogen; if the preset time has been exceeded, the current remaining amount of hydrogen is calculated based on the first formula;

[0008] If the hydrogen storage system has started to supply hydrogen, the current hydrogen consumption is calculated according to the second formula, and the current remaining amount of hydrogen is calculated based on the current hydrogen consumption;

[0009] The current remaining amount of hydrogen is sent to a dashboard of the fuel cell vehicle to be stored when the fuel cell vehicle is powered off.

[0010] Specifically, the first formula is:

[0011]

[0012] Among them, m is the current remaining amount of hydrogen, N represents the number of hydrogen bottles in the hydrogen storage system, V represents the volume of a single hydrogen bottle, T represents the average temperature of the hydrogen bottle mouth of the hydrogen storage system, and P represents the hydrogen bottle pressure value of the hydrogen storage system.

[0013] More specifically, the second formula is to integrate the mass flow rate of hydrogen consumption, and the mass flow rate of hydrogen consumption is calculated as follows:

[0014]

[0015] Where dm represents the mass flow rate of hydrogen consumption, n represents the number of cells in the stack, represents the hydrogen stoichiometric ratio, I represents the stack current, represents the molar mass of hydrogen, and F represents the Faraday constant.

[0016] Further, the calculating the current remaining amount of hydrogen based on the current hydrogen consumption includes:

[0017] Obtain the remaining amount of hydrogen stored in the last driving cycle of the fuel cell vehicle;

[0018] The current remaining amount of hydrogen is obtained by subtracting the current amount of hydrogen consumption from the remaining amount of hydrogen stored in the last driving cycle of the fuel cell vehicle.

[0019] Furthermore, the determining whether the hydrogen storage system of the fuel cell vehicle starts to supply hydrogen includes: determining whether a hydrogen supply valve of the hydrogen storage system is open, and if so, determining that the hydrogen storage system starts to supply hydrogen.

[0020] Further preferably, before determining whether the hydrogen supply valve of the hydrogen storage system is opened, the step further includes:

[0021] The stack system of the fuel cell vehicle issues a hydrogen demand instruction to the hydrogen storage system;

[0022] The hydrogen storage system opens the hydrogen supply valve of the hydrogen storage system after receiving the hydrogen demand instruction.

[0023] A second aspect of the present invention provides a device for calculating the remaining amount of hydrogen in a hydrogen storage system, the device comprising:

[0024] The first unit is used to determine whether the hydrogen storage system starts to supply hydrogen after the fuel cell vehicle is powered on, and if it does not start to supply hydrogen, determine whether the power-on time exceeds a preset time;

[0025] The second unit is used to use the remaining amount of hydrogen stored in the last driving cycle of the fuel cell vehicle as the current remaining amount of hydrogen when the preset time has not been exceeded, and calculate the current remaining amount of hydrogen based on the first formula when the preset time has been exceeded;

[0026] A third unit is used to calculate the current hydrogen consumption according to the second formula when the hydrogen storage system has started to supply hydrogen, and then calculate the current hydrogen remaining amount based on the current hydrogen consumption;

[0027] The fourth unit is used to send the current remaining amount of hydrogen to the dashboard of the fuel cell vehicle so as to store it when the fuel cell vehicle is powered off.

[0028] A third aspect of the present invention provides a hydrogen fuel cell vehicle, which is provided with a calculation device for the remaining amount of hydrogen in the hydrogen storage system as described in each embodiment.

[0029] A fourth aspect of the present invention provides a computer-readable storage medium having a computer program stored thereon, which implements the following steps when executed by a processor:

[0030] After the fuel cell vehicle is powered on, determine whether the hydrogen storage system of the fuel cell vehicle starts to supply hydrogen. If it does not start to supply hydrogen, determine whether the power-on time exceeds the preset time;

[0031] If the preset time has not been exceeded, the remaining amount of hydrogen stored in the last driving cycle of the fuel cell vehicle is used as the current remaining amount of hydrogen; if the preset time has been exceeded, the current remaining amount of hydrogen is calculated based on the first formula;

[0032] If the hydrogen storage system has started to supply hydrogen, the current hydrogen consumption is calculated according to the second formula, and the current remaining amount of hydrogen is calculated based on the current hydrogen consumption;

[0033] The current remaining amount of hydrogen is sent to a dashboard of the fuel cell vehicle to be stored when the fuel cell vehicle is powered off.

[0034] A fifth aspect of the present invention provides a computer program product, comprising a computer program, which implements the following steps when executed by a processor:

[0035] After the fuel cell vehicle is powered on, determine whether the hydrogen storage system of the fuel cell vehicle starts to supply hydrogen. If it does not start to supply hydrogen, determine whether the power-on time exceeds the preset time;

[0036] If the preset time has not been exceeded, the remaining amount of hydrogen stored in the last driving cycle of the fuel cell vehicle is used as the current remaining amount of hydrogen; if the preset time has been exceeded, the current remaining amount of hydrogen is calculated based on the first formula;

[0037] If the hydrogen storage system has started to supply hydrogen, the current hydrogen consumption is calculated according to the second formula, and the current remaining amount of hydrogen is calculated based on the current hydrogen consumption;

[0038] The current remaining amount of hydrogen is sent to a dashboard of the fuel cell vehicle to be stored when the fuel cell vehicle is powered off.

[0039] The beneficial effects of the present application are as follows: the method described in the present application adopts different ways of calculating the current remaining amount of hydrogen according to the different states of the hydrogen storage system of the fuel cell vehicle. Hydrogen is a gas with its own particularity. It is absolutely necessary to carefully consider the different states of the hydrogen storage system that stores hydrogen, so that the calculation of the current remaining amount of hydrogen is more accurate. In addition, the present application calculates the current remaining amount of hydrogen in real time, transmits the current remaining amount to the instrument panel in real time, and also ensures the accuracy of the remaining amount of hydrogen displayed by the instrument, and improves the calculation accuracy of the remaining amount of hydrogen. BRIEF DESCRIPTION OF THE DRAWINGS

[0040] The accompanying drawings, which constitute a part of the specification, illustrate embodiments of the present application and, together with the description, serve to explain the principles of the present application.

[0041] The present application can be more clearly understood from the following detailed description with reference to the accompanying drawings, in which:

[0042] Figure 1 A schematic diagram of the method steps of an exemplary embodiment of the present application is shown;

[0043] Figure 2 A method flow chart of an exemplary embodiment of the present application is shown;

[0044] Figure 3 A schematic diagram of the device structure of an exemplary embodiment of the present application is shown;

[0045] Figure 4 A schematic diagram of the structure of an electronic device provided by an exemplary embodiment of the present application is shown;

[0046] Figure 5 A schematic diagram of a storage medium provided by an exemplary embodiment of the present application is shown. DETAILED DESCRIPTION

[0047] Hereinafter, embodiments of the present application will be described with reference to the accompanying drawings. However, it should be understood that these descriptions are exemplary only and are not intended to limit the scope of the present application. In addition, in the following description, descriptions of known structures and technologies are omitted to avoid unnecessary confusion of the concepts of the present application. It is obvious to those skilled in the art that the present application can be implemented without one or more of these details. In other examples, in order to avoid confusion with the present application, some technical features known in the art are not described.

[0048] It should be noted that the terms used herein are only for describing specific embodiments and are not intended to limit exemplary embodiments according to the present application. As used herein, unless the context clearly indicates otherwise, the singular form is also intended to include the plural form. In addition, it should also be understood that when the terms "comprise" and / or "include" are used in this specification, it indicates the presence of the features, wholes, steps, operations, elements and / or components, but does not exclude the presence or addition of one or more other features, wholes, steps, operations, elements, components and / or combinations thereof.

[0049] Now, exemplary embodiments according to the present application will be described in more detail with reference to the accompanying drawings. However, these exemplary embodiments may be implemented in a variety of different forms and should not be construed as being limited to the embodiments described herein. The accompanying drawings are not drawn to scale, and certain details may be magnified and certain details may be omitted for the purpose of clear expression. The shapes of the various regions and layers shown in the figures and the relative sizes and positional relationships therebetween are merely exemplary, and may deviate in practice due to manufacturing tolerances or technical limitations, and those skilled in the art may additionally design regions / layers with different shapes, sizes, and relative positions according to actual needs.

[0050] The following is attached to the instruction manual Figure 1-5 Several embodiments are given to describe exemplary implementations according to the present application. It should be noted that the following application scenarios are only shown to facilitate understanding of the spirit and principles of the present application, and the implementations of the present application are not limited in this regard. On the contrary, the implementations of the present application can be applied to any applicable scenario.

[0051] Embodiment 1:

[0052] This embodiment implements a method for calculating the remaining amount of hydrogen in a hydrogen storage system, such as Figure 1 As shown, the method includes:

[0053] S1. After the fuel cell vehicle is powered on, determine whether the hydrogen storage system of the fuel cell vehicle starts to supply hydrogen. If it does not start to supply hydrogen, determine whether the power-on time exceeds the preset time;

[0054] S2. If the preset time has not been exceeded, the remaining amount of hydrogen stored in the last driving cycle of the fuel cell vehicle is used as the current remaining amount of hydrogen. If the preset time has been exceeded, the current remaining amount of hydrogen is calculated based on the first formula;

[0055] S3. If the hydrogen storage system has started to supply hydrogen, the current hydrogen consumption is calculated according to the second formula, and the current remaining amount of hydrogen is calculated based on the current hydrogen consumption;

[0056] S4. Sending the current remaining amount of hydrogen to a dashboard of the fuel cell vehicle to be stored when the fuel cell vehicle is powered off.

[0057] It should be noted here that the equipment used to store hydrogen on a fuel cell vehicle is a hydrogen storage system, which includes one or more hydrogen bottles, in which hydrogen is stored in a high-pressure form.

[0058] In a specific implementation, the fuel cell vehicle stack system issues a hydrogen demand instruction to the hydrogen storage system, and the hydrogen storage system opens the hydrogen supply valve of the hydrogen storage system after receiving the hydrogen demand instruction. It is determined whether the hydrogen supply valve of the hydrogen storage system is open, and if it is open, it is determined that the hydrogen storage system has started to supply hydrogen. After it is determined that the hydrogen storage system has started to supply hydrogen, it is determined whether the power-on time exceeds the preset time.

[0059] Specifically, the first formula is:

[0060]

[0061] Among them, N represents the number of gas cylinders in the hydrogen storage system, in units of pieces; V represents the volume of a single hydrogen cylinder, in units of L; T represents the average temperature at the mouth of the hydrogen cylinder of the hydrogen storage system, in units of ℃; P represents the pressure value of the hydrogen cylinder of the hydrogen storage system, in units of MPa.

[0062] More specifically, the second formula is to integrate the mass flow rate of hydrogen consumption, and the calculation method of the mass flow rate of hydrogen consumption is:

[0063]

[0064] Where dm represents the mass flow rate of hydrogen consumption, n represents the number of cells in the stack, represents the hydrogen stoichiometric ratio, I represents the stack current, represents the molar mass of hydrogen, and F represents the Faraday constant.

[0065] Further, the current remaining amount of hydrogen is calculated based on the current hydrogen consumption, including:

[0066] Obtain the remaining amount of hydrogen stored in the last driving cycle of the fuel cell vehicle;

[0067] The current remaining amount of hydrogen is obtained by subtracting the current amount of hydrogen consumed from the remaining amount of hydrogen stored in the last driving cycle of the fuel cell vehicle.

[0068] Embodiment 2:

[0069] This embodiment implements a method for calculating the remaining amount of hydrogen in a hydrogen storage system, such as Figure 2 As shown, the whole vehicle is powered on first. After the fuel cell vehicle is powered on, the hydrogen storage system (i.e. Figure 2The hydrogen supply system in the fuel cell vehicle starts to supply hydrogen. If not, it is determined whether the power-on time exceeds the preset time T1. If it does not exceed the preset time T1, the remaining hydrogen M0 stored in the last driving cycle of the fuel cell vehicle is used as the current remaining hydrogen. If it has exceeded the preset time, the current remaining hydrogen is calculated based on the first formula and recorded as M1. If the hydrogen storage system has started to supply hydrogen, the current hydrogen consumption is calculated according to the second formula, and the current remaining hydrogen is calculated based on the current hydrogen consumption. Finally, the current remaining hydrogen is sent to the dashboard of the fuel cell vehicle for storage when the fuel cell vehicle is powered off.

[0070] Specifically, the first formula is:

[0071]

[0072] Among them, m is the current remaining amount of hydrogen, N represents the number of hydrogen bottles in the hydrogen storage system, V represents the volume of a single hydrogen bottle, T represents the average temperature of the hydrogen bottle mouth of the hydrogen storage system, and P represents the hydrogen bottle pressure value of the hydrogen storage system.

[0073] More specifically, the second formula is to integrate the mass flow rate of hydrogen consumption, and the mass flow rate of hydrogen consumption is calculated as follows:

[0074]

[0075] Where dm represents the mass flow rate of hydrogen consumption, n represents the number of cells in the stack, represents the hydrogen stoichiometric ratio, I represents the stack current, represents the molar mass of hydrogen, and F represents the Faraday constant.

[0076] Further, the calculating the current remaining amount of hydrogen based on the current hydrogen consumption includes:

[0077] Obtain the remaining amount of hydrogen M stored in the last driving cycle of the fuel cell vehicle; subtract the current hydrogen consumption M2 from the remaining amount of hydrogen stored in the last driving cycle of the fuel cell vehicle, such as Figure 2 As shown in the figure, M-M2 is the current remaining amount of hydrogen.

[0078] Furthermore, the determining whether the hydrogen storage system of the fuel cell vehicle starts to supply hydrogen includes: determining whether a hydrogen supply valve of the hydrogen storage system is open, and if so, determining that the hydrogen storage system starts to supply hydrogen.

[0079] Further preferably, the judgment as to whether the hydrogen supply valve of the hydrogen storage system is open also includes: the stack system of the fuel cell vehicle issues a hydrogen demand instruction to the hydrogen storage system; the hydrogen storage system opens the hydrogen supply valve of the hydrogen storage system after receiving the hydrogen demand instruction. Because the storage system is also equipped with a hydrogen supply valve, the opening and closing of the hydrogen supply valve controls the supply of hydrogen. The stack system specifically includes a stack controller, and the hydrogen demand instruction issued by the stack system is specifically issued by the controller in the stack system.

[0080] It can be seen that in this embodiment, the current remaining amount of hydrogen may be M0, M1 or M-M2. If it does not exceed the preset time T1, the remaining amount of hydrogen M0 stored in the last driving cycle of the fuel cell vehicle is used as the current remaining amount of hydrogen. If it exceeds the preset time, the current remaining amount of hydrogen is calculated based on the first formula and recorded as M1. If the hydrogen storage system has started to supply hydrogen, the current hydrogen consumption is calculated according to the second formula, and the current remaining amount of hydrogen is calculated based on the current hydrogen consumption.

[0081] Therefore, the method described in the present application adopts different ways of calculating the current remaining amount of hydrogen according to the different states of the hydrogen storage system of the fuel cell vehicle. Hydrogen is a gas with its own particularity. It is absolutely necessary to carefully consider the different states of the hydrogen storage system that stores hydrogen, so that the calculation of the current remaining amount of hydrogen is more accurate. In addition, the present application calculates the current remaining amount of hydrogen in real time and transmits the current remaining amount to the instrument panel in real time, which also ensures the accuracy of the remaining amount of hydrogen displayed by the instrument and improves the calculation accuracy of the remaining amount of hydrogen.

[0082] Embodiment 3:

[0083] This embodiment provides a device for calculating the remaining amount of hydrogen in a hydrogen storage system. Figure 3 As shown, the device comprises:

[0084] The first unit 301 is used to determine whether the hydrogen storage system starts to supply hydrogen after the fuel cell vehicle is powered on, and if it does not start to supply hydrogen, determine whether the power-on time exceeds a preset time;

[0085] The second unit 302 is used to use the remaining amount of hydrogen stored in the last driving cycle of the fuel cell vehicle as the current remaining amount of hydrogen when the preset time has not been exceeded, and calculate the current remaining amount of hydrogen based on the first formula when the preset time has been exceeded;

[0086] The third unit 303 is used to calculate the current hydrogen consumption according to the second formula when the hydrogen storage system has started to supply hydrogen, and then calculate the current hydrogen remaining amount based on the current hydrogen consumption;

[0087] The fourth unit 304 is used to send the current remaining amount of hydrogen to the dashboard of the fuel cell vehicle so as to store it when the fuel cell vehicle is powered off.

[0088] Embodiment 4:

[0089] This embodiment implements a hydrogen fuel cell vehicle, which is provided with the device for calculating the remaining amount of hydrogen in the hydrogen storage system described in Embodiment 3. The hydrogen fuel cell vehicle also includes a stack system and a hydrogen storage system (also called a hydrogen supply system), and the stack system, the hydrogen storage system and the device for calculating the remaining amount of hydrogen in the hydrogen storage system can work in coordination.

[0090] Please refer to the following Figure 4 , which shows a schematic diagram of an electronic device provided by some embodiments of the present application. Figure 4 As shown, the electronic device 2 includes: a processor 200, a memory 201, a bus 202 and a communication interface 203, and the processor 200, the communication interface 203 and the memory 201 are connected via the bus 202; the memory 201 stores a computer program that can be run on the processor 200, and when the processor 200 runs the computer program, it executes the method for calculating the remaining amount of hydrogen in the hydrogen storage system provided in any of the aforementioned embodiments of the present application, and the electronic device can be an electronic device with a touch-sensitive display.

[0091] The memory 201 may include a high-speed random access memory (RAM), and may also include a non-volatile memory, such as at least one disk memory. The communication connection between the system network element and at least one other network element is realized through at least one communication interface 203 (which may be wired or wireless), and the Internet, wide area network, local area network, metropolitan area network, etc. may be used.

[0092] The bus 202 may be an ISA bus, a PCI bus, or an EISA bus, etc. The bus may be divided into an address bus, a data bus, a control bus, etc. The memory 201 is used to store a program, and the processor 200 executes the program after receiving an execution instruction. The method for calculating the remaining amount of hydrogen in the hydrogen storage system disclosed in any of the embodiments of the present application may be applied to the processor 200, or implemented by the processor 200.

[0093] The processor 200 may be an integrated circuit chip with signal processing capabilities. In the implementation process, each step of the above method can be completed by the hardware integrated logic circuit or software instructions in the processor 200. The above processor 200 can be a general-purpose processor, including a central processing unit (CPU), a network processor (NP), etc.; it can also be a digital signal processor (DSP), an application-specific integrated circuit (ASIC), a readily available programmable gate array (FPGA) or other programmable logic devices, discrete gates or transistor logic devices, discrete hardware components. The methods, steps and logic block diagrams disclosed in the embodiments of the present application can be implemented or executed. The general-purpose processor can be a microprocessor or the processor can also be any conventional processor, etc. The steps of the method disclosed in the embodiments of the present application can be directly embodied as a hardware decoding processor to be executed, or the hardware and software modules in the decoding processor can be executed. The software module can be located in a mature storage medium in the field such as a random access memory, a flash memory, a read-only memory, a programmable read-only memory or an electrically erasable programmable memory, a register, etc. The storage medium is located in the memory 201, and the processor 200 reads the information in the memory 201 and completes the steps of the above method in combination with its hardware.

[0094] The electronic device provided in the embodiment of the present application and the method for calculating the remaining amount of hydrogen in the hydrogen storage system provided in the embodiment of the present application are based on the same inventive concept and have the same beneficial effects as the methods adopted, operated or implemented therein.

[0095] The present application also provides a computer-readable storage medium corresponding to the method for calculating the remaining amount of hydrogen in the hydrogen storage system provided in the above embodiment. Figure 5 , Figure 5 The computer-readable storage medium shown is a CD 30 on which a computer program (ie, a program product) is stored. When the computer program is executed by a processor, the method for calculating the remaining amount of hydrogen in the hydrogen storage system provided in any of the aforementioned embodiments is executed.

[0096] In addition, examples of the computer-readable storage medium may also include, but are not limited to, phase change memory (PRAM), static random access memory (SRAM), dynamic random access memory (DRAM), other types of random access memory (RAM), read-only memory (ROM), electrically erasable programmable read-only memory (EEPROM), flash memory or other optical or magnetic storage media, which are not listed here one by one.

[0097] The computer-readable storage medium provided in the above-mentioned embodiments of the present application and the method for allocating channels for quantum key distribution in a space-division multiplexed optical network provided in the embodiments of the present application are based on the same inventive concept and have the same beneficial effects as the methods adopted, run or implemented by the application programs stored therein.

[0098] The present application also provides a computer program product, including a computer program, which, when executed by a processor, implements the steps of a method for calculating the remaining amount of hydrogen in a hydrogen storage system provided in any of the aforementioned embodiments, the steps of the method comprising: after the fuel cell vehicle is powered on, determining whether the hydrogen storage system of the fuel cell vehicle starts to supply hydrogen, and if not, determining whether the power-on time exceeds a preset time; if not, taking the remaining amount of hydrogen stored in the last driving cycle of the fuel cell vehicle as the current remaining amount of hydrogen, and if exceeding the preset time, calculating the current remaining amount of hydrogen based on a first formula; if the hydrogen storage system has started to supply hydrogen, calculating the current hydrogen consumption according to a second formula, and then calculating the current remaining amount of hydrogen based on the current hydrogen consumption; and sending the current remaining amount of hydrogen to the dashboard of the fuel cell vehicle for storage when the fuel cell vehicle is powered off.

[0099] Acquire video data; input the video data into a trained teacher model to obtain a first depth map; input the video data into a trained student model to obtain a second depth map and a first depth uncertainty map; wherein the training method of the teacher model is a self-supervised training method, the training method of the student model is a supervised training method, and the teacher model and the student model are jointly trained.

[0100] It should be noted that the algorithms and displays provided herein are not inherently related to any particular computer, virtual device or other device. Various general devices can also be used together with the teachings based thereon. According to the above description, it is obvious that the structure required for constructing such devices is constructed. In addition, the present application is not directed to any specific programming language. It should be understood that the content of the present application described herein can be implemented using various programming languages, and the above description of specific languages ​​is to disclose the best implementation mode of the present application. In the specification provided herein, a large number of specific details are described. However, it is understood that the embodiments of the present application can be practiced without these specific details. In some instances, known methods, structures and techniques are not shown in detail so as not to obscure the understanding of this specification.

[0101] Similarly, it should be understood that in order to streamline the present application and aid in understanding one or more of the various inventive aspects, in the above description of the exemplary embodiments of the present application, the various features of the present application are sometimes grouped together into a single embodiment, figure, or description thereof. However, this disclosed method should not be interpreted as reflecting the following intention: the claimed application requires more features than the features explicitly recited in each claim. More specifically, as reflected in the claims below, the inventive aspects lie in less than all the features of the single embodiment disclosed above. Therefore, the claims that follow the specific embodiment are hereby expressly incorporated into the specific embodiment, with each claim itself serving as a separate embodiment of the present application.

[0102] Those skilled in the art will appreciate that the modules in the devices in the embodiments can be adaptively changed and arranged in one or more devices different from the embodiments. The modules or units or components in the embodiments can be combined into one module or unit or component, and in addition they can be divided into multiple submodules or subunits or subassemblies. Except that at least some of such features and / or processes or units are mutually exclusive, all features disclosed in this specification and all processes or units of any method or device disclosed in this manner can be combined in any combination. Unless otherwise clearly stated, each feature disclosed in this specification can be replaced by an alternative feature providing the same, equivalent or similar purpose.

[0103] The various component embodiments of the present application can be implemented in hardware, or in software modules running on one or more processors, or in a combination thereof. It should be understood by those skilled in the art that a microprocessor or digital signal processor (DSP) can be used in practice to implement some or all functions of some or all components in the creation device of the virtual machine according to the embodiment of the present application. The present application can also be implemented as a device or device program for executing part or all of the methods described herein. The program implementing the present application can be stored on a computer-readable medium, or can have the form of one or more signals. Such a signal can be downloaded from an Internet website, or provided on a carrier signal, or provided in any other form.

[0104] The above is only a preferred specific implementation of the present application, but the protection scope of the present application is not limited thereto. Any changes or substitutions that can be easily thought of by a person skilled in the art within the technical scope disclosed in the present application should be included in the protection scope of the present application. Therefore, the protection scope of the present application shall be based on the protection scope of the claims.

Claims

1. A method for calculating the remaining amount of hydrogen in a hydrogen storage system, characterized in that: include: After the fuel cell vehicle is powered on, determine whether the hydrogen storage system of the fuel cell vehicle starts to supply hydrogen. If it does not start to supply hydrogen, determine whether the power-on time exceeds the preset time; If the preset time has not been exceeded, the remaining amount of hydrogen stored in the last driving cycle of the fuel cell vehicle is used as the current remaining amount of hydrogen; if the preset time has been exceeded, the current remaining amount of hydrogen is calculated based on the first formula; If the hydrogen storage system has started to supply hydrogen, the current hydrogen consumption is calculated according to the second formula, and the current remaining amount of hydrogen is calculated based on the current hydrogen consumption; sending the current remaining amount of hydrogen to a dashboard of the fuel cell vehicle for storage when the fuel cell vehicle is powered off; The first formula is: Among them, m is the current remaining amount of hydrogen, N is the number of hydrogen bottles in the hydrogen storage system, V is the volume of a single hydrogen bottle, T is the average temperature of the hydrogen bottle mouth of the hydrogen storage system, and P is the pressure value of the hydrogen bottle of the hydrogen storage system; The second formula is to integrate the mass flow rate of hydrogen consumption, and the mass flow rate of hydrogen consumption is calculated as follows: Where dm represents the mass flow rate of hydrogen consumption, n represents the number of cells in the stack, represents the hydrogen stoichiometric ratio, I represents the stack current, represents the molar mass of hydrogen, and F represents the Faraday constant.

2. The method for calculating the remaining amount of hydrogen in the hydrogen storage system according to claim 1, characterized in that: The calculating the current remaining amount of hydrogen based on the current hydrogen consumption includes: Obtain the remaining amount of hydrogen stored in the last driving cycle of the fuel cell vehicle; The current remaining amount of hydrogen is obtained by subtracting the current amount of hydrogen consumption from the remaining amount of hydrogen stored in the last driving cycle of the fuel cell vehicle.

3. The method for calculating the remaining amount of hydrogen in the hydrogen storage system according to claim 1, characterized in that: The determining whether the hydrogen storage system of the fuel cell vehicle starts to supply hydrogen comprises: determining whether the hydrogen supply valve of the hydrogen storage system is open, and if it is open, determining that the hydrogen storage system starts to supply hydrogen.

4. The method for calculating the remaining amount of hydrogen in the hydrogen storage system according to claim 3, characterized in that: Before determining whether the hydrogen supply valve of the hydrogen storage system is opened, the method further includes: The stack system of the fuel cell vehicle issues a hydrogen demand instruction to the hydrogen storage system; The hydrogen storage system opens the hydrogen supply valve of the hydrogen storage system after receiving the hydrogen demand instruction.

5. A device for calculating the remaining amount of hydrogen in a hydrogen storage system, characterized in that: The device comprises: The first unit is used to determine whether the hydrogen storage system starts to supply hydrogen after the fuel cell vehicle is powered on, and if it does not start to supply hydrogen, determine whether the power-on time exceeds a preset time; The second unit is used to use the remaining amount of hydrogen stored in the last driving cycle of the fuel cell vehicle as the current remaining amount of hydrogen when the preset time has not been exceeded, and calculate the current remaining amount of hydrogen based on the first formula when the preset time has been exceeded; A third unit is used to calculate the current hydrogen consumption according to the second formula when the hydrogen storage system has started to supply hydrogen, and then calculate the current hydrogen remaining amount based on the current hydrogen consumption; a fourth unit, for sending the current remaining amount of hydrogen to a dashboard of the fuel cell vehicle for storage when the fuel cell vehicle is powered off; The first formula is: Among them, m is the current remaining amount of hydrogen, N is the number of hydrogen bottles in the hydrogen storage system, V is the volume of a single hydrogen bottle, T is the average temperature of the hydrogen bottle mouth of the hydrogen storage system, and P is the pressure value of the hydrogen bottle of the hydrogen storage system; The second formula is to integrate the mass flow rate of hydrogen consumption, and the mass flow rate of hydrogen consumption is calculated as follows: Where dm represents the mass flow rate of hydrogen consumption, n represents the number of cells in the stack, represents the hydrogen stoichiometric ratio, I represents the stack current, represents the molar mass of hydrogen, and F represents the Faraday constant.

6. A hydrogen fuel cell vehicle, characterized in that: The hydrogen fuel cell vehicle is provided with a device for calculating the remaining amount of hydrogen in the hydrogen storage system as claimed in claim 5.

7. A computer-readable storage medium having a computer program stored thereon, characterized in that: When the computer program is executed by a processor, the steps of the method according to any one of claims 1 to 4 are implemented.

8. A computer program product, comprising a computer program, characterized in that When the computer program is executed by a processor, the steps of the method according to any one of claims 1 to 4 are implemented.

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