A hydrogen fuel cell hydrogenation method and device

Abstract

The present invention provides a hydrogen fuel cell hydrogenation method and device, relating to the technical field of hydrogen fuel cells. The method includes: establishing an electrical connection between the hydrogen fuel cell hydrogenation device and the hydrogen fuel cell; collecting and reading the initial pressure data of the hydrogen fuel cell through a pressure detection module, and collecting and reading the initial temperature data of the hydrogen fuel cell through a temperature detection module; determining whether the initial pressure data and the initial temperature data simultaneously meet a preset hydrogenation control threshold; when the preset hydrogenation control threshold is simultaneously met, opening the hydrogenation pipeline valve to hydrogenate the hydrogen fuel cell; when the shutdown condition is met, controlling the stop of hydrogenation of the hydrogen fuel cell, achieving the technical effects of conveniently and accurately obtaining information of the hydrogen fuel cell and intelligently and accurately controlling hydrogenation.

Description

Technical Field

[0001] The present invention relates to the technical field of hydrogen fuel cells, and particularly relates to a hydrogen fuel cell hydrogen addition method and device. Background Art

[0002] During the filling process of high-pressure hydrogen H2, due to external work, the temperature of the hydrogen cylinder will rise, and the temperature rise rates of the hydrogen filling machine and the hydrogen cylinder are different due to different pressure differences. Especially in the case of 70 MPa high-pressure hydrogen storage, the temperature of the hydrogen cylinder needs to be strictly controlled (usually not exceeding 60 °C) during the process of filling hydrogen into the hydrogen cylinder of the hydrogen fuel cell. Therefore, during the hydrogen addition process, it is necessary to obtain the pressure / intensity and temperature of the hydrogen cylinder in real time and accurately to increase the controllability of the hydrogen addition process (such as hydrogen addition speed, fault shutdown, normal shutdown, etc.).

[0003] In the existing solutions, generally, the pressure / intensity and temperature of the hydrogen cylinder of the hydrogen fuel cell are obtained in two ways. One solution is that the hydrogen filling machine is provided with a pressure sensor and a temperature sensor, that is, the pressure / intensity and temperature measured on the hydrogen filling machine side are equivalent to the pressure and temperature of the hydrogen on the hydrogen fuel cell side. However, due to factors such as different heat dissipation coefficients of different hydrogen cylinder materials and different heat dissipation amounts of filling pipelines with different lengths, it is inaccurate to infer the pressure / intensity and temperature inside the hydrogen cylinder by detecting the hydrogen pressure / intensity and temperature in the pipeline of the hydrogen filling machine. Another solution is to establish a communication connection between the equipment to be hydrogenated (such as a hydrogen energy vehicle) and the hydrogen filling station / hydrogen filling machine, such as wired communication (such as based on the CAN communication protocol), wireless communication (such as infrared communication, Bluetooth communication, etc.), and transmit the pressure / intensity and temperature data measured inside the equipment to be hydrogenated to the hydrogen filling machine / hydrogen filling station in real time through the established communication (such as CN207264585U, CN113090935A). However, this method requires the configuration of corresponding hardware devices, such as an infrared communication module, a Bluetooth communication module, etc., and the equipment to be hydrogenated needs to be powered on during the hydrogen addition process to ensure the operation of the pressure sensor, temperature sensor, and communication module.

[0004] The solution proposed by CN110939859A (hydrogen addition control device and method) is: without establishing real-time communication between the hydrogen filling station and the vehicle, by measuring the initial parameters (hydrogen cylinder volume, initial hydrogen pressure, and initial ambient temperature) of the on-vehicle hydrogen storage device at the hydrogen filling station, obtaining the filling rate and target pressure to control the filling process, the process is simple, easy to implement, and ensures the reliability of the hydrogen addition process. However, the methods of obtaining initial parameters by scanning codes and manual input are cumbersome, and this solution can only obtain initial parameters and cannot obtain data such as the hydrogen pressure and temperature in the hydrogen storage device in real time during the hydrogen addition process.

[0005] At present, there is a technical problem that it is lacking to accurately and conveniently obtain information during the hydrogen addition process of hydrogen fuel cells, which leads to insufficiently intelligent and accurate hydrogen addition control. Summary of the Invention

[0006] By providing a hydrogen fuel cell hydrogenation method and device, the present application solves the technical problem of the lack of accurate and convenient information acquisition during the hydrogenation process of hydrogen fuel cells, which in turn leads to insufficiently intelligent and accurate hydrogenation control, and achieves the technical effect of conveniently and accurately obtaining the information of hydrogen fuel cells and intelligently and accurately controlling hydrogenation.

[0007] In view of the above problems, the present application provides a hydrogen fuel cell hydrogenation method and device.

[0008] In a first aspect, the present application provides a hydrogen fuel cell hydrogenation method, which is applied to a hydrogen fuel cell hydrogenation device. The method includes: establishing an electrical connection between the hydrogen fuel cell hydrogenation device and the pressure detection module and temperature detection module of the hydrogen fuel cell; collecting the initial pressure data of the hydrogen fuel cell from the pressure detection module and the initial temperature data of the hydrogen fuel cell from the temperature detection module; determining whether the initial pressure data and the initial temperature data simultaneously meet a preset hydrogenation control threshold; when the initial pressure data and the initial temperature data simultaneously meet the preset hydrogenation control threshold, opening the hydrogenation pipeline valve to inject hydrogen into the hydrogen fuel cell; when the shutdown condition is met, controlling the stop of hydrogenation of the hydrogen fuel cell.

[0009] In a second aspect, the present application provides a hydrogen fuel cell hydrogenation device, a connection unit, which is used to establish an electrical connection between the hydrogen fuel cell hydrogenation device and the pressure detection module and temperature detection module of the hydrogen fuel cell; a collection unit, which is used to collect the initial pressure data of the hydrogen fuel cell from the pressure detection module and the initial temperature data of the hydrogen fuel cell from the temperature detection module; a judgment unit, which is used to judge whether the initial pressure data and the initial temperature data simultaneously meet a preset hydrogenation control threshold; a filling control unit, which is used to open the hydrogenation pipeline valve to inject hydrogen into the hydrogen fuel cell when the initial pressure data and the initial temperature data simultaneously meet the preset hydrogenation control threshold; a shutdown control unit, which is used to control the stop of hydrogenation of the hydrogen fuel cell when the shutdown condition is met.

[0010] One or more technical solutions provided in the present application have at least the following technical effects or advantages:

[0011] By establishing an electrical connection between the hydrogen fuel cell hydrogenation device and the hydrogen fuel cell; collecting and reading the initial pressure data of the hydrogen fuel cell through the pressure detection module, and collecting and reading the initial temperature data of the hydrogen fuel cell through the temperature detection module; determining whether the initial pressure data and the initial temperature data simultaneously meet the preset hydrogenation control threshold; when the initial pressure data and the initial temperature data simultaneously meet the preset hydrogenation control threshold, the hydrogenation pipeline valve is opened to hydrogenate the hydrogen fuel cell; when the shutdown condition is met, the hydrogenation of the hydrogen fuel cell is controlled to stop. The technical effect of conveniently and accurately obtaining the information of the hydrogen fuel cell and intelligently and accurately controlling the hydrogenation is achieved. BRIEF DESCRIPTION OF THE DRAWINGS

[0012] Figure 1 It is a schematic flow chart of a hydrogen fuel cell hydrogenation method of the present application;

[0013] Figure 2 It is a schematic flow chart of setting the shutdown condition of a hydrogen fuel cell hydrogenation method of the present application;

[0014] Figure 3 It is a schematic structural diagram of a hydrogen fuel cell hydrogenation device of the present application.

[0015] Description of reference numerals: connection unit 11, acquisition unit 12, judgment unit 13, filling control unit 14, real-time acquisition unit 15, shutdown control unit 16. DETAILED DESCRIPTION OF THE EMBODIMENTS

[0016] The present application provides a hydrogen fuel cell hydrogenation method and device, which solves the technical problem of lack of accurate and convenient information acquisition in the hydrogen fuel cell hydrogenation process, resulting in insufficient intelligent and accurate hydrogenation control, and achieves the technical effect of conveniently and accurately obtaining the information of the hydrogen fuel cell and intelligently and accurately controlling the hydrogenation.

[0017] Embodiment 1

[0018] As Figure 1 shown, the present application provides a hydrogen fuel cell hydrogenation method, wherein the method is applied to a hydrogen fuel cell hydrogenation device, and the method includes:

[0019] Step S100: Establish an electrical connection between the hydrogen fuel cell hydrogenation device and the pressure detection module and temperature detection module of the hydrogen fuel cell;

[0020] Specifically, the hydrogen fuel cell hydrogen addition device is a hydrogen dispenser at a hydrogen refueling station, and the hydrogen fuel cell is a vehicle-mounted hydrogen storage device. Generally speaking, the hydrogen fuel cell includes a 35MPa system and a 70MPa system. The pressure detection module is an intelligent module that can collect pressure information and is generally composed of a pressure sensor. The temperature detection module is a module that can collect temperature and is generally composed of a thermistor. And the pressure detection module and the temperature detection module are arranged inside / outside the hydrogen storage device of the hydrogen fuel cell.

[0021] The pressure detection module is generally arranged outside the hydrogen storage device of the hydrogen fuel cell (such as arranged on the bottle valve) and is used to output the pressure value signal of the hydrogen fuel cell; the temperature detection module is generally arranged inside the hydrogen storage device of the hydrogen fuel cell (such as arranged on the bottle valve and extending into the inside of the hydrogen storage device of the hydrogen fuel cell) and is used to output the temperature signal of the hydrogen fuel cell.

[0022] Furthermore, when hydrogen is added to the hydrogen fuel cell, first establish the electrical connection between the hydrogen fuel cell hydrogen addition device and the hydrogen fuel cell. The electrical connection in this application is a power-on connection. In order to reduce the complexity of connection communication, in this application, the built-in pressure detection module and temperature detection module of the hydrogen fuel cell are powered on, and the hydrogen fuel cell information is obtained according to the current / voltage value. Compared with communication acquisition (such as Bluetooth, CAN communication), it has the technical effects of simple and convenient connection, and can reduce the control cost and control complexity. Generally speaking, when the measurement pipeline of the hydrogen fuel cell hydrogen addition device cooperates with the hydrogen fuel cell, the electrical connection between the hydrogen fuel cell hydrogen addition device and the hydrogen fuel cell is established. Through the establishment of the electrical connection, it provides support for subsequent acquisition of temperature and pressure information, and further lays a foundation for accurately obtaining the information inside the hydrogen fuel cell.

[0023] Step S200: Collect the initial pressure data of the hydrogen fuel cell from the pressure detection module, and collect the initial temperature data of the hydrogen fuel cell from the temperature detection module;

[0024] Step S300: Determine whether the initial pressure data and the initial temperature data simultaneously meet the preset hydrogen addition control threshold;

[0025] Specifically, after the electrical connection between the hydrogen fuel cell hydrogen addition device and the hydrogen fuel cell is established, that is, after the electrical connection between the hydrogen fuel cell hydrogen addition device and the pressure detection module and the temperature detection module built inside the hydrogen fuel cell is established, the pressure detection module and the temperature detection module are powered on, and real-time pressure data and temperature data are obtained based on the return result of the power-on.

[0026] Taking the current-type pressure sensor in Table 1 as an example, after establishing the electrical connection, when the pressure data collected by the hydrogen fuel cell hydrogenation device from the pressure detection module inside the hydrogen fuel cell is 4.640 mA, the actual corresponding pressure of the hydrogen cylinder of the hydrogen fuel cell is 1.2 kPa.

[0027] Taking the voltage-type pressure sensor in Table 2 as an example, after establishing the electrical connection, when the pressure data collected by the hydrogen fuel cell hydrogenation device from the pressure detection module inside the hydrogen fuel cell is 0.980 V, the actual corresponding pressure of the hydrogen cylinder of the hydrogen fuel cell is 4.2 psi.

[0028] As shown in Table 1, it is the DG2107-A-30 psi pressure output indexing table (current comparison table):

[0029] Table 1 DG2107-A-30 psi pressure output indexing table (current comparison table)

[0030]

[0031]

[0032] As shown in Table 2, it is the DG2407-A-35 psi pressure output indexing table (voltage comparison table):

[0033] Table 2 DG2407-A-35 psir pressure output indexing table (voltage comparison table)

[0034] psi 0.000 2.100 4.200 6.300 9.100 11.200 Output V 0.500 0.740 0.980 1.220 1.540 1.780 psi 15.400 18.200 26.600 30.100 33.600 35.000 Output V 2.260 2.580 3.540 3.940 4.340 4.500

[0035] By collecting the real-time current or voltage signal, the pressure detection module and the temperature detection module built in the hydrogen fuel cell are used to collect the pressure information and the temperature information. The collected pressure information is the initial pressure data, and the collected temperature information is the initial temperature data.

[0036] Furthermore, based on the initially collected pressure data and initial temperature data, it is determined whether the hydrogen fuel cell can be hydrogenated. Generally, a preset hydrogenation control threshold is set, and the preset hydrogenation control threshold can be a fixed threshold.

[0037] Similarly, the preset hydrogenation control threshold can also be a dynamic threshold that changes in real time according to the attributes, status, etc. of the hydrogen fuel cell. Step S300 of this application further includes:

[0038] Step S310: Obtain the battery basic information of the hydrogen fuel cell;

[0039] Step S320: Generate the preset hydrogenation control threshold based on big data and the battery basic information, where the preset hydrogenation control threshold includes a hydrogen pressure threshold and a hydrogen temperature threshold.

[0040] Specifically, the battery basic information includes the battery's attribute information (such as battery type, working conditions, output characteristic curve, etc.), usage duration information, material information, etc. By combining the basic information with the current hydrogenation safety conditions in big data, the hydrogen pressure threshold and the hydrogen temperature threshold are set. Further, for more accurate comparison, according to the correspondence between the current signal and pressure / temperature or the correspondence between the voltage signal and pressure / temperature, the hydrogen pressure threshold is converted into a current / voltage signal threshold, and the hydrogen temperature threshold is converted into a current / voltage signal threshold. The initial pressure data and the initial temperature data are determined according to the current or voltage signal threshold.

[0041] Judge whether the initial pressure data and the initial temperature data simultaneously meet the preset hydrogenation control threshold. When they cannot simultaneously meet the preset hydrogenation control threshold, it indicates that the state of the hydrogen fuel cell at this time does not meet the hydrogenation requirements, and hydrogenation treatment cannot be performed at this time. By electrically connecting and signal-converting the pressure detection module and the temperature detection module, real-time data before hydrogenation of the hydrogen fuel cell can be obtained, providing data support for whether hydrogenation operation can be performed, and further accurately judging whether hydrogenation operation can be performed to ensure hydrogenation safety.

[0042] Step S400: When the initial pressure data and the initial temperature data simultaneously meet the preset hydrogenation control threshold, open the hydrogenation pipeline valve to fill hydrogen into the hydrogen fuel cell;

[0043] Further, when this application executes step S400, it also includes:

[0044] Step S410: Generate the initial parameters of the hydrogen fuel cell according to the initial pressure data and the initial temperature data;

[0045] Step S420: Generate the filling rate control data according to the initial parameters and the battery basic information;

[0046] Step S430: Fill hydrogen into the hydrogen fuel cell through the filling data control data.

[0047] Specifically, the detected initial pressure data and the initial temperature data are used as the initial parameters of the hydrogen fuel cell. Through the battery basic information, data pre-screening of the hydrogenation control data in big data (the influence data of temperature rise and hydrogenation rate in actual hydrogenation control) is carried out. According to the pre-screening results, the hydrogenation rate is matched with the initial parameters, and the filling rate control data is obtained according to the matching results. The filling rate control data is the parameter for controlling the hydrogenation rate of the current hydrogen fuel cell, and hydrogen is filled into the hydrogen fuel cell through the filling data control data. By obtaining the parameters of the current hydrogen fuel cell and selecting a suitable hydrogenation rate based on historical hydrogenation experience, the risk of abnormal temperature rise during hydrogenation is reduced, and abnormal hydrogenation interruption is avoided on the premise of ensuring the hydrogenation rate.

[0048] Further, when the present application executes step S400, it further includes:

[0049] Step S440: Set a multi-level temperature-constrained hydrogenation rate set based on big data;

[0050] Step S450: Perform temperature matching on the multi-level temperature-constrained hydrogenation rate set according to the initial temperature data, and generate rate constraint data according to the matching results;

[0051] Step S460: Obtain the filling rate control data through the rate constraint data.

[0052] Specifically, the filling rate control data is set with reference to the temperature in the initial parameters. For each specification of hydrogen fuel cell, a multi-level temperature-constrained hydrogenation rate set is correspondingly set. After selecting the multi-level temperature-constrained hydrogenation rate set through the battery basic information, temperature matching of the multi-level temperature-constrained hydrogenation rate set is performed according to the initial temperature data, rate constraint data is generated according to the matching results, and the rate constraint data is used as the filling speed control data.

[0053] Further, step S400 of the present application further includes:

[0054] Step S470: Judge whether there is a temperature jump in the temperature data through the multi-level temperature-constrained hydrogenation rate set;

[0055] Step S480: When there is a temperature jump, generate real-time adjustment filling rate control data;

[0056] Step S490: Perform real-time hydrogenation control through the real-time adjustment filling rate control data.

[0057] Specifically, after the refueling speed control data is selected, hydrogen is added to the hydrogen fuel cell, temperature data is collected in real time, and it is determined whether the temperature data is still within the corresponding level temperature of the matching multi-level temperature-constrained hydrogen refueling rate set. When it is not within the corresponding level temperature, it is determined that there is a temperature jump in the temperature data. When the temperature jump is a high-temperature level jump, the rate of hydrogen addition is adjusted in real time according to the constrained hydrogen refueling rate corresponding to the high-temperature level to reduce the hydrogen refueling rate to ensure hydrogen refueling safety; when the temperature jump is a low-temperature level jump, the rate of hydrogen addition is adjusted in real time according to the constrained hydrogen refueling rate corresponding to the low-temperature level to increase the hydrogen refueling rate and reduce the hydrogen refueling duration.

[0058] Step S500: When the shutdown condition is satisfied, control is performed to stop hydrogen addition to the hydrogen fuel cell.

[0059] Further, when the shutdown condition is satisfied, control is performed to stop hydrogen addition to the hydrogen fuel cell.

[0060] It further includes:

[0061] Step S510: Pressure data and temperature data are collected in real time from the pressure detection module and the temperature detection module.

[0062] Step S520: When any one of the pressure data and the temperature data satisfies the shutdown condition, control is performed to stop hydrogen addition to the hydrogen fuel cell.

[0063] Specifically, when the initial pressure data and the initial temperature data simultaneously satisfy the preset hydrogen refueling control threshold, it indicates that the state of the hydrogen fuel cell is normal at this time and hydrogen addition operation can be performed. At this time, the hydrogen refueling pipeline valve is opened to add hydrogen to the hydrogen fuel cell.

[0064] Further, when hydrogen addition starts, pressure and temperature data inside the hydrogen fuel cell are collected in real time through the pressure detection module and the temperature detection module to obtain pressure data and temperature data (both are real-time collected data). By collecting and supervising real-time data, real-time information during the hydrogen refueling process of the hydrogen fuel cell can be obtained more conveniently and accurately, and then hydrogen refueling control can be accurately performed to ensure hydrogen refueling safety.

[0065] When any one of the pressure data and the temperature data satisfies the shutdown condition, the hydrogen addition operation for the hydrogen fuel cell is stopped to ensure hydrogen refueling safety. The shutdown condition can be set according to actual operations and at least includes the following setting situations:

[0066] Further, as Figure 2 shown, the shutdown condition setting in step S520 of this application includes:

[0067] Step S521: Perform a full-hydrogen constraint analysis based on the battery basic information, and generate a first shutdown condition according to the results of the full-hydrogen constraint analysis;

[0068] Step S522: Analyze the hydrogenation pressure and hydrogenation temperature thresholds based on the battery basic information, and generate a second shutdown condition based on the results of the threshold analysis;

[0069] Step S523: Generate the shutdown condition according to the first shutdown condition and the second shutdown condition.

[0070] Specifically, the first shutdown condition is a full-hydrogen constraint shutdown condition. Generally speaking, according to the attribute information in the basic information of the hydrogen fuel cell, a full-hydrogen constraint analysis is performed. For example, the full-hydrogen constraint pressure of a 35 MPa hydrogen fuel cell is 35 MPa, and the full-hydrogen constraint pressure of a 70 MPa hydrogen fuel cell is 70 MPa. Further, according to the battery material information and battery service life information in the battery basic information, the full-hydrogen constraint conditions can be adjusted adaptively to ensure the hydrogenation safety of the hydrogen fuel cell. The first shutdown condition is obtained according to the full-hydrogen analysis and adjustment results.

[0071] Further, the second shutdown condition includes a temperature shutdown condition and a pressure-temperature correlation shutdown condition. The temperature shutdown condition means setting a certain temperature threshold. When the detected temperature data meets the temperature threshold, the hydrogenation environment safety cannot be guaranteed at this time, and the temperature threshold is used as the second shutdown condition. The pressure-temperature correlation shutdown condition means that before reaching the full-hydrogen constraint shutdown condition, for a certain pressure point, the temperature does not meet the temperature threshold, but the combination of the pressure and temperature at this time affects more than the predetermined safety condition, then the combination value of the pressure and temperature at this time is used as the shutdown condition. The second shutdown condition is obtained according to the temperature threshold and the pressure-temperature combination value. By setting multiple shutdown conditions, accurate analysis can be performed on the pressure data and temperature data collected in real time, and then the hydrogenation state of the hydrogen fuel cell can be accurately determined, laying a foundation for ensuring hydrogenation safety.

[0072] Further, step S523 further includes:

[0073] Step S5231: Obtain the user demand data of the hydrogenation user;

[0074] Step S5232: Perform demand parsing on the user demand data, and generate a demand shutdown condition based on the parsing results;

[0075] Step S5233: Replace the first shutdown condition with the demand shutdown condition, and obtain the shutdown condition according to the replacement result.

[0076] Specifically, the user demand data is the demand hydrogen refueling data of the owner of the hydrogen fuel cell. When the pressure value / intensity value in the user demand data is within the full hydrogen pressure / intensity range, a demand shutdown condition is generated according to the parsing result of the demand data, and the first shutdown condition in the shutdown condition is replaced through the demand shutdown condition. The shutdown condition is composed of the demand shutdown condition and the second shutdown condition. By parsing the user's demand data, the set shutdown condition can be made more in line with the user, ensuring hydrogen refueling safety while improving the user's hydrogen refueling experience.

[0077] Further, step S5210 of the present application further includes:

[0078] Step S5211: Obtain battery attribute information and battery usage duration information according to the battery basic information;

[0079] Step S5212: Perform battery state rating according to the battery attribute information and the battery usage duration information to obtain a battery state rating result;

[0080] Step S5213: Perform weighted calculation on the set full hydrogen value through the battery state rating result, and obtain the first shutdown condition according to the weighted calculation result.

[0081] Specifically, in order to facilitate the setting of the full hydrogen shutdown condition and conveniently set the shutdown condition and shutdown management for different specifications of batteries, multi-level state rating division is performed on the hydrogen fuel cell. First, obtain the calibrated full hydrogen value according to the battery basic information, obtain battery attribute information (quality information), battery usage duration information, battery health status information, etc. through the battery basic information, evaluate the usage state of the battery according to the battery attribute information (quality information), battery usage duration information, battery health status information, etc., perform hierarchical matching of the multi-level state rating division according to the evaluation result, generate a weighted value through the hierarchical matching result. The worse the state of the hydrogen fuel cell, the lower the matching hierarchical weight value, and the smaller the pressure threshold of the weighted calculation result of the full hydrogen value. Obtain the first shutdown condition according to the weighted calculation result. By setting the full hydrogen constraint condition in combination with the hydrogen fuel cell information and matching the weight value through multi-level state rating division, the effect of conveniently setting the full hydrogen shutdown threshold is achieved.

[0082] In summary, a hydrogen fuel cell hydrogen refueling method and device provided by the present application have the following technical effects:

[0083] By establishing an electrical connection between the hydrogen fuel cell hydrogenation device and the hydrogen fuel cell; collecting and reading the initial pressure data of the hydrogen fuel cell through the pressure detection module, and collecting and reading the initial temperature data of the hydrogen fuel cell through the temperature detection module; determining whether the initial pressure data and the initial temperature data simultaneously meet the preset hydrogenation control threshold; when the initial pressure data and the initial temperature data simultaneously meet the preset hydrogenation control threshold, the hydrogenation pipeline valve is opened to hydrogenate the hydrogen fuel cell; the pressure data and the temperature data are obtained by real-time collection through the pressure detection module and the temperature detection module; when any one of the pressure data and the temperature data meets the shutdown condition, the hydrogenation of the hydrogen fuel cell is controlled to stop, achieving the technical effects of conveniently and accurately obtaining the real-time information of the hydrogen fuel cell and intelligently and accurately controlling hydrogenation.

[0084] By making electrical connections and signal conversions of the pressure detection module and the temperature detection module, real-time data before hydrogenation of the hydrogen fuel cell can be obtained, providing data support for whether hydrogenation operation can be performed, and then accurately judging whether hydrogenation operation can be performed to ensure hydrogenation safety.

[0085] By obtaining the parameters of the current hydrogen fuel cell and selecting an appropriate hydrogenation rate based on historical hydrogenation experience, the risk of abnormal temperature rise during hydrogenation is reduced, and abnormal hydrogenation termination is avoided on the premise of ensuring the hydrogenation rate.

[0086] By setting multiple shutdown conditions, accurate analysis can be performed on the pressure data and temperature data collected in real time, and then the hydrogenation state of the hydrogen fuel cell can be accurately determined, laying a foundation for ensuring hydrogenation safety.

[0087] By analyzing the user's demand data, the set shutdown conditions can be made more in line with the user, improving the user's hydrogenation experience while ensuring hydrogenation safety.

[0088] By setting the full-hydrogen constraint conditions in combination with the hydrogen fuel cell information and matching the weight values through multi-level state rating division, the effect of conveniently setting the full-hydrogen shutdown threshold is achieved.

[0089] Embodiment 2

[0090] Based on the same inventive concept as a hydrogen fuel cell hydrogenation method in the foregoing embodiment, as Figure 3 shown, the present application provides a hydrogen fuel cell hydrogenation device, and the device includes:

[0091] A connection unit 11, and the connection unit 11 is used to establish an electrical connection between the hydrogen fuel cell hydrogenation device and the pressure detection module and the temperature detection module of the hydrogen fuel cell;

[0092] The acquisition unit 12 is configured to acquire the initial pressure data of the hydrogen fuel cell from the pressure detection module and acquire the initial temperature data of the hydrogen fuel cell from the temperature detection module;

[0093] The judgment unit 13 is configured to judge whether the initial pressure data and the initial temperature data simultaneously meet a preset hydrogen filling control threshold;

[0094] The filling control unit 14 is configured to open the hydrogen filling pipeline valve to fill hydrogen into the hydrogen fuel cell when the initial pressure data and the initial temperature data simultaneously meet the preset hydrogen filling control threshold;

[0095] The shutdown control unit 15 is configured to control the stop of hydrogen filling for the hydrogen fuel cell when a shutdown condition is met.

[0096] In some embodiments, the connection unit 11 may be an electrical interface provided at the hydrogen filling port of the hydrogen fuel cell hydrogen filling device (such as the hydrogen filling port of the hydrogen filling gun). Thus, when performing a hydrogen filling operation on the hydrogen fuel cell, when the hydrogen filling gun is connected to the hydrogen filling port of the hydrogen fuel cell, the electrical connection between the connection unit 11 and the internal pressure detection module and temperature detection module of the hydrogen fuel cell can also be achieved (in this case, the hydrogen filling port of the hydrogen fuel cell is also provided with an electrical interface matching the connection unit 11). In other embodiments, the connection unit 11 may be a separate electrical interface led out from the hydrogen fuel cell hydrogen filling device. When performing a hydrogen filling operation on the hydrogen fuel cell, the hydrogen filling port of the hydrogen filling device (such as the hydrogen filling port of the hydrogen filling gun) is connected to the hydrogen filling port of the hydrogen fuel cell, and the connection unit 11 is connected to the corresponding electrical interface of the hydrogen fuel cell (at this time, this electrical interface can be provided on the hydrogen filling port of the hydrogen fuel cell or elsewhere). Preferably, the connection unit 11 may be a 5-pin electrical interface, the pressure detection module is a voltage type / current type pressure sensor, the temperature detection unit is a thermistor, and the 5 pins are respectively the positive electrode of the 12V power supply (pin 1), the negative electrode of the power supply (pin 2), the pressure signal (pin 3), and 2 resistance measurement pins 4 and 5 led out from both ends of the thermistor. In some embodiments, the acquisition unit 12 and the real-time acquisition unit 15 may be implemented by the same hardware unit. After the hydrogen fuel cell hydrogen filling device and the hydrogen fuel cell establish an electrical connection, the initial data of the hydrogen fuel cell (such as initial pressure data and initial temperature data) can be acquired, and the real-time data during the hydrogen filling process of the hydrogen fuel cell (such as real-time pressure data and real-time temperature data) can also be acquired. Specifically, the acquisition unit 12 may include a pressure data acquisition circuit and a temperature data acquisition circuit. The pressure data acquisition circuit can establish an electrical connection with the pressure detection module of the hydrogen fuel cell through the pressure detection port of the connection unit 11 to form an energized circuit and read the pressure data; the temperature data acquisition circuit can establish an electrical connection with the temperature detection module of the hydrogen fuel cell through the temperature detection port of the connection unit 11 and read the temperature data. The acquisition unit 12 can transmit the acquired data to other units of the hydrogen fuel cell hydrogen filling device for further processing, such as transmitting to one or more of the judgment unit 13, the filling control unit 14, and the shutdown control unit 15.

[0097] In some embodiments, the functions of the judgment unit 13, the filling control unit 14, and the shutdown control unit 15 may be implemented by the same hardware controller.

[0098] Furthermore, the shutdown control unit 15 further includes:

[0099] A real-time acquisition unit, which is used to acquire pressure data and temperature data from the pressure detection module and the temperature detection module in real time;

[0100] When any of the pressure data and the temperature data meets the shutdown condition, control is performed to stop hydrogen refueling of the hydrogen fuel cell.

[0101] In some embodiments, the acquisition unit 12 and the real-time acquisition unit can be implemented by the same hardware unit. After the hydrogen fuel cell refueling device is electrically connected to the hydrogen fuel cell, it can collect the initial data of the hydrogen fuel cell (such as initial pressure data, initial temperature data), and can also collect the real-time data during the hydrogen refueling process of the hydrogen fuel cell (such as real-time pressure data, real-time temperature data). Specifically, the acquisition unit 12 / real-time acquisition unit may include a pressure data acquisition circuit and a temperature data acquisition circuit. The acquisition unit 12 and the real-time acquisition unit can transmit the collected data to other units of the hydrogen fuel cell refueling device for further data processing.

[0102] Furthermore, the judgment unit 13 includes:

[0103] Obtain the battery basic information of the hydrogen fuel cell;

[0104] Generate the preset hydrogen refueling control threshold based on big data and the battery basic information, where the preset hydrogen refueling control threshold includes a hydrogen pressure threshold and a hydrogen temperature threshold.

[0105] Furthermore, the filling control unit 14 includes:

[0106] Generate the initial parameters of the hydrogen fuel cell according to the initial pressure data and the initial temperature data;

[0107] Generate filling rate control data according to the initial parameters and the battery basic information;

[0108] Control the filling of hydrogen to the hydrogen fuel cell through the filling data control data.

[0109] Furthermore, the shutdown control unit 15 includes:

[0110] Perform full hydrogen constraint analysis according to the battery basic information, and generate a first shutdown condition according to the result of the full hydrogen constraint analysis;

[0111] Perform hydrogen refueling pressure and hydrogen refueling temperature threshold analysis based on the battery basic information, and generate a second shutdown condition based on the result of the threshold analysis;

[0112] Generate the shutdown condition according to the first shutdown condition and the second shutdown condition.

[0113] Furthermore, the shutdown control unit 15 includes:

[0114] Obtain the user demand data of the hydrogen refueling user;

[0115] Analyze the user demand data and generate a demand shutdown condition based on the analysis result;

[0116] Replace the first shutdown condition with the demand shutdown condition and obtain the shutdown condition according to the replacement result.

[0117] Furthermore, the shutdown control unit 15 includes:

[0118] Obtain battery attribute information and battery usage duration information based on the battery basic information;

[0119] Conduct a battery status rating based on the battery attribute information and the battery usage duration information to obtain a battery status rating result;

[0120] Perform weighted calculation on the set full hydrogen value through the battery status rating result and obtain the first shutdown condition according to the weighted calculation result.

[0121] Furthermore, the filling control unit 14 includes:

[0122] Set a multi-level temperature-constrained hydrogen filling rate set based on big data;

[0123] Match the temperature of the multi-level temperature-constrained hydrogen filling rate set according to the initial temperature data and generate rate constraint data according to the matching result;

[0124] Obtain the filling rate control data through the rate constraint data.

[0125] Furthermore, the filling control unit 14 includes:

[0126] Judge whether there is a temperature jump in the temperature data through the multi-level temperature-constrained hydrogen filling rate set;

[0127] When there is a temperature jump, generate real-time adjusted filling rate control data;

[0128] Conduct real-time hydrogen filling control through the real-time adjusted filling rate control data.

[0129] This specification and the drawings are only exemplary descriptions of the present application. Without departing from the spirit and scope of the present application, various modifications and combinations can be made to it. If these modifications and variations of the present application fall within the scope of the claims of the present application and their equivalent technologies, then the present application intends to include these changes and variations.

Claims

1. A hydrogen fuel cell hydrogenation method, characterized in that, The method is applied to a hydrogen fuel cell hydrogenation device, and the method includes: Establish an electrical connection between the hydrogen fuel cell hydrogenation device and the pressure detection module and temperature detection module of the hydrogen fuel cell; Collect the initial pressure data of the hydrogen fuel cell from the pressure detection module, and collect the initial temperature data of the hydrogen fuel cell from the temperature detection module; Judge whether the initial pressure data and the initial temperature data simultaneously meet the preset hydrogenation control threshold; When the initial pressure data and the initial temperature data simultaneously meet the preset hydrogenation control threshold, open the hydrogenation pipeline valve to fill hydrogen into the hydrogen fuel cell; When the shutdown condition is met, control to stop hydrogenating the hydrogen fuel cell; The method further includes: Obtain the battery basic information of the hydrogen fuel cell; Generate the preset hydrogenation control threshold based on big data and the battery basic information, wherein the preset hydrogenation control threshold includes a hydrogen pressure threshold and a hydrogen temperature threshold; Generate the initial parameters of the hydrogen fuel cell according to the initial pressure data and the initial temperature data; Generate filling rate control data according to the initial parameters and the battery basic information; Fill hydrogen into the hydrogen fuel cell through the filling rate control data; Set a multi-level temperature-constrained hydrogenation rate set based on big data; Perform temperature matching on the multi-level temperature-constrained hydrogenation rate set according to the initial temperature data, and generate rate constraint data according to the matching result; Obtain the filling rate control data through the rate constraint data; Judge whether there is a temperature jump in the temperature data through the multi-level temperature-constrained hydrogenation rate set; When there is a temperature jump, generate real-time adjustment filling rate control data; Perform real-time hydrogenation control through the real-time adjustment filling rate control data.

2. The method according to claim 1, characterized in that The controlling to stop hydrogenating the hydrogen fuel cell when the shutdown condition is met includes: Real-time collect and obtain pressure data and temperature data from the pressure detection module and the temperature detection module; When any one of the pressure data and the temperature data meets the shutdown condition, control to stop hydrogenating the hydrogen fuel cell.

3. The method according to claim 1, wherein The method includes: Conduct a full-hydrogen constraint analysis according to the battery basic information, and generate a first shutdown condition according to the full-hydrogen constraint analysis result; Conduct a hydrogenation pressure and hydrogenation temperature threshold analysis based on the battery basic information, and generate a second shutdown condition based on the threshold analysis result; Generate the shutdown condition according to the first shutdown condition and the second shutdown condition.

4. The method according to claim 3, wherein The method includes: Obtain the user demand data of the hydrogenation user; Conduct demand analysis on the user demand data, and generate a demand shutdown condition based on the analysis result; Replace the first shutdown condition with the demand shutdown condition, and obtain the shutdown condition according to the replacement result.

5. The method according to claim 3, wherein The method further includes: Obtain battery attribute information and battery usage duration information according to the battery basic information; Conduct battery state rating according to the battery attribute information and the battery usage duration information, and obtain a battery state rating result; The set full hydrogen value is weighted and calculated based on the battery state rating result, and the first shutdown condition is obtained according to the weighted calculation result.

6. A hydrogen fuel cell hydrogenation device, characterized in that, For implementing a hydrogen fuel cell hydrogenation method according to any one of claims 1-5, the device includes: A connection unit for establishing an electrical connection between the hydrogen fuel cell hydrogenation device and the pressure detection module and the temperature detection module of the hydrogen fuel cell; An acquisition unit for acquiring the initial pressure data of the hydrogen fuel cell from the pressure detection module and the initial temperature data of the hydrogen fuel cell from the temperature detection module; A judgment unit for judging whether the initial pressure data and the initial temperature data simultaneously meet a preset hydrogenation control threshold; A filling control unit for opening a hydrogenation pipeline valve to fill the hydrogen fuel cell with hydrogen when the initial pressure data and the initial temperature data simultaneously meet the preset hydrogenation control threshold; A shutdown control unit for controlling the stop of hydrogenation of the hydrogen fuel cell when a shutdown condition is met.

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