CN116646567A - Method of fuel cell system, fuel cell system and vehicle - Google Patents
Method of fuel cell system, fuel cell system and vehicle Download PDFInfo
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- CN116646567A CN116646567A CN202210141746.9A CN202210141746A CN116646567A CN 116646567 A CN116646567 A CN 116646567A CN 202210141746 A CN202210141746 A CN 202210141746A CN 116646567 A CN116646567 A CN 116646567A
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- 239000000446 fuel Substances 0.000 title claims abstract description 185
- 238000000034 method Methods 0.000 title claims abstract description 38
- 229910052739 hydrogen Inorganic materials 0.000 claims abstract description 220
- 239000001257 hydrogen Substances 0.000 claims abstract description 220
- UFHFLCQGNIYNRP-UHFFFAOYSA-N Hydrogen Chemical compound [H][H] UFHFLCQGNIYNRP-UHFFFAOYSA-N 0.000 claims abstract description 212
- 230000005611 electricity Effects 0.000 claims abstract description 50
- 230000007812 deficiency Effects 0.000 description 11
- 230000006870 function Effects 0.000 description 5
- 230000032683 aging Effects 0.000 description 4
- 238000003491 array Methods 0.000 description 2
- 150000002431 hydrogen Chemical class 0.000 description 2
- 239000000463 material Substances 0.000 description 2
- 230000003287 optical effect Effects 0.000 description 2
- 238000004364 calculation method Methods 0.000 description 1
- 238000004590 computer program Methods 0.000 description 1
- 238000002474 experimental method Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 239000013307 optical fiber Substances 0.000 description 1
- 238000012545 processing Methods 0.000 description 1
- 238000012360 testing method Methods 0.000 description 1
Classifications
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
- H01M8/00—Fuel cells; Manufacture thereof
- H01M8/04—Auxiliary arrangements, e.g. for control of pressure or for circulation of fluids
- H01M8/04298—Processes for controlling fuel cells or fuel cell systems
- H01M8/04992—Processes for controlling fuel cells or fuel cell systems characterised by the implementation of mathematical or computational algorithms, e.g. feedback control loops, fuzzy logic, neural networks or artificial intelligence
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
- H01M8/00—Fuel cells; Manufacture thereof
- H01M8/04—Auxiliary arrangements, e.g. for control of pressure or for circulation of fluids
- H01M8/04298—Processes for controlling fuel cells or fuel cell systems
- H01M8/04313—Processes for controlling fuel cells or fuel cell systems characterised by the detection or assessment of variables; characterised by the detection or assessment of failure or abnormal function
- H01M8/0438—Pressure; Ambient pressure; Flow
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
- H01M8/00—Fuel cells; Manufacture thereof
- H01M8/04—Auxiliary arrangements, e.g. for control of pressure or for circulation of fluids
- H01M8/04298—Processes for controlling fuel cells or fuel cell systems
- H01M8/04313—Processes for controlling fuel cells or fuel cell systems characterised by the detection or assessment of variables; characterised by the detection or assessment of failure or abnormal function
- H01M8/0438—Pressure; Ambient pressure; Flow
- H01M8/04388—Pressure; Ambient pressure; Flow of anode reactants at the inlet or inside the fuel cell
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
- H01M8/00—Fuel cells; Manufacture thereof
- H01M8/04—Auxiliary arrangements, e.g. for control of pressure or for circulation of fluids
- H01M8/04298—Processes for controlling fuel cells or fuel cell systems
- H01M8/04313—Processes for controlling fuel cells or fuel cell systems characterised by the detection or assessment of variables; characterised by the detection or assessment of failure or abnormal function
- H01M8/04537—Electric variables
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
- H01M8/00—Fuel cells; Manufacture thereof
- H01M8/04—Auxiliary arrangements, e.g. for control of pressure or for circulation of fluids
- H01M8/04298—Processes for controlling fuel cells or fuel cell systems
- H01M8/04694—Processes for controlling fuel cells or fuel cell systems characterised by variables to be controlled
- H01M8/04858—Electric variables
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
- H01M2250/00—Fuel cells for particular applications; Specific features of fuel cell system
- H01M2250/20—Fuel cells in motive systems, e.g. vehicle, ship, plane
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
- Y02E60/00—Enabling technologies; Technologies with a potential or indirect contribution to GHG emissions mitigation
- Y02E60/30—Hydrogen technology
- Y02E60/50—Fuel cells
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- Fuel Cell (AREA)
Abstract
The invention discloses a fuel cell and a control method thereof, a vehicle and a computer storage medium, wherein the control method of the fuel cell comprises the following steps: acquiring the running state of an upper-layer electricity object and acquiring the hydrogen demand according to the state of the upper-layer electricity object; detecting the current actual hydrogen supply to the anode of the fuel cell; and calculating the load current of the fuel cell according to the actual hydrogen supply amount and the hydrogen demand amount. According to the control method of the fuel cell, the fuel cell can be prevented from working under the condition of continuous under-hydrogen, the safety performance of the fuel cell is improved, and the sufficient hydrogen pressure of the anode side of the fuel cell when an upper-layer electricity utilization object works is ensured.
Description
Technical Field
The present invention relates to the field of fuel cells, and more particularly, to a method of a fuel cell system, and a vehicle.
Background
In the related art, the anode hydrogen pressure of the existing fuel cell is usually controlled by an electromagnetic valve, when the fuel cell is used for a long time, the electromagnetic valve has aging phenomenon, and the capacity of the battery valve for controlling the anode hydrogen pressure of the fuel cell is reduced, so that the problems that the aging of the electromagnetic valve cannot meet the normal pressure control and the like exist, and the problem that the hydrogen pressure of the anode side of the fuel cell is insufficient and the problem that the fuel cell lacks hydrogen is caused when the fuel cell is serious exist.
Disclosure of Invention
The present invention aims to solve at least one of the technical problems existing in the prior art. Therefore, an object of the present invention is to provide a control method of a fuel cell, which can avoid the operation of the fuel cell under the condition of continuous under-hydrogen, improve the safety performance of the fuel cell, and ensure that the hydrogen pressure on the anode side of the fuel cell is sufficient when an upper-layer electricity consuming object is in operation.
The invention also provides a fuel cell system applying the control method.
The invention also provides a vehicle with the fuel cell.
The control method of the fuel cell according to the present invention includes: acquiring the running state of an upper-layer electricity object and acquiring the hydrogen demand according to the state of the upper-layer electricity object; detecting the current actual hydrogen supply to the anode of the fuel cell; and calculating the load current of the fuel cell according to the actual hydrogen supply amount and the hydrogen demand amount.
According to the control method of the fuel cell, the hydrogen demand and the current actual hydrogen supply of the anode of the fuel cell are firstly obtained, and then the load-pulling current of the fuel cell is calculated according to the actual hydrogen supply and the hydrogen demand, so that when the hydrogen pressure at the anode side of the fuel cell is insufficient, the load-pulling current of the fuel cell is controlled, the fuel cell is prevented from working under the condition of continuous hydrogen shortage, and the safety performance of the fuel cell is improved.
In some embodiments of the present invention, the acquiring the operation state of the upper-layer electricity object and acquiring the hydrogen demand according to the state of the upper-layer electricity object includes: acquiring a real-time power request of an upper-layer electricity object; calculating a preset load current of the fuel cell according to the real-time power request; and calculating the hydrogen demand of the fuel cell according to the preset load current.
In some embodiments of the invention, the detecting the current actual hydrogen supply to the fuel cell anode comprises: the current hydrogen pressure of the anode of the fuel cell is obtained, and the hydrogen supply amount is calculated according to the current hydrogen pressure.
In some embodiments of the invention, the calculating the pull-up current of the fuel cell from the actual hydrogen supply amount and the hydrogen demand amount includes: comparing the preset hydrogen supply quantity of the anode with the actual hydrogen supply quantity and obtaining a comparison result; and selecting to output with preset pulling current or output with maximum current of the fuel cell according to the comparison result.
In some embodiments of the present invention, if the actual hydrogen supply is greater than the hydrogen demand, outputting with a preset pull-load current; and outputting the maximum current if the actual hydrogen supply amount is not greater than the hydrogen demand amount.
In some embodiments of the invention, the control method further comprises: acquiring a power request value of an upper-layer electricity object, calculating a preset pulling load current according to the power request value, and determining a hydrogen pressure set value corresponding to the preset pulling load current according to the preset pulling load current; and if the current hydrogen pressure is smaller than the hydrogen pressure setting value, determining the load current of the fuel cell according to the current hydrogen pressure and the hydrogen pressure setting value.
In some embodiments of the present invention, if the current hydrogen pressure is less than the hydrogen pressure setting, determining the load current of the fuel cell according to the current hydrogen pressure and the hydrogen pressure setting includes: and calculating a first difference value of the current hydrogen pressure and a minimum hydrogen pressure set value, calculating a second difference value of the hydrogen pressure set value and the minimum hydrogen pressure set value, calculating an output current ratio according to the first difference value and the second difference value, and obtaining the pulling load current according to the output current ratio, the power request value of the upper-layer electricity consumption object and the minimum preset current of the fuel cell.
The fuel cell system according to the present invention is briefly described below.
According to the invention, the fuel cell comprises the fuel cell and the control module, the control module controls the fuel cell and the control method controls the output of the fuel cell, and the fuel cell can avoid the fuel cell to work under the condition of continuous under-hydrogen due to the fuel cell and the control module, so that the safety performance of the fuel cell is improved.
In some embodiments of the invention, the control module comprises: the first module acquires the running state of an upper-layer electricity utilization object and acquires the hydrogen demand according to the state of the upper-layer electricity utilization object; a second module that detects a current actual hydrogen supply to the fuel cell anode; and the third module calculates the load current of the fuel cell according to the actual hydrogen supply quantity and the hydrogen demand quantity.
The vehicle according to the invention is briefly described below.
According to the fuel cell system provided with the embodiment, the vehicle is provided with the fuel cell system provided with the embodiment, so that when the vehicle is used as an upper-layer electricity consumption object of the fuel cell, the fuel cell can be prevented from working under the condition of continuous hydrogen shortage, the safety performance of the fuel cell and the driving safety of the vehicle are improved, and the sufficient hydrogen pressure of the anode side of the fuel cell during running of the vehicle is ensured.
Additional aspects and advantages of the invention will be set forth in part in the description which follows, and in part will be obvious from the description, or may be learned by practice of the invention.
Drawings
The foregoing and/or additional aspects and advantages of the invention will become apparent and may be better understood from the following description of embodiments taken in conjunction with the accompanying drawings in which:
fig. 1 is a flowchart of a control method of a fuel cell system according to the present invention;
fig. 2 is a graph of hydrogen pressure setting versus output current setting for a fuel cell system according to the present invention.
Detailed Description
Embodiments of the present invention are described in detail below, examples of which are illustrated in the accompanying drawings, wherein like or similar reference numerals refer to like or similar elements or elements having like or similar functions throughout. The embodiments described below by referring to the drawings are illustrative only and are not to be construed as limiting the invention.
A control method of a fuel cell system according to an embodiment of the invention is described below with reference to fig. 1 to 2.
According to the control method of the fuel cell system of the present invention, as shown in fig. 1, the control method includes the steps of:
s1, acquiring the running state of an upper-layer electricity utilization object and acquiring the hydrogen demand according to the running state of the upper-layer electricity utilization object. The upper-layer electric object is firstly judged, the upper-layer electric object can be a power device of a vehicle such as a vehicle, a ship, an airplane and the like, more specifically can be an element for outputting power of a motor of the vehicle, a motor of the ship and other power devices, and the running state of the upper-layer electric object can be in a working state and a non-working state. When the upper-layer electricity object is in a working state, the hydrogen demand can be calculated by judging the use condition of the upper-layer electricity object, for example, the hydrogen demand can be further obtained by judging the current speed and the current power of the vehicle. Wherein the current speed and current power of the vehicle may be read through the CAN bus of the vehicle.
S2, detecting the current actual hydrogen supply quantity of the anode of the fuel cell. The current actual hydrogen supply quantity of the fuel cell anode can be calculated by detecting the current actual hydrogen parameter of the fuel cell anode to obtain the current hydrogen stoichiometric ratio, wherein the current actual hydrogen parameter of the fuel cell anode can be the current actual hydrogen content, the current actual hydrogen density, the current actual hydrogen pressure and other parameters, and the actual hydrogen supply quantity is further obtained through the current hydrogen stoichiometric ratio after the current hydrogen stoichiometric ratio is calculated.
S3, calculating the load current of the fuel cell according to the actual hydrogen supply amount and the hydrogen demand amount. Firstly, judging whether the current fuel cell anode has a hydrogen deficiency phenomenon according to the parameter comparison of the actual hydrogen supply amount and the hydrogen demand amount, and if the current fuel cell anode does not have the hydrogen deficiency phenomenon, continuing to take the preset load current as the load current of the fuel cell; if the anode of the fuel cell has the phenomenon of hydrogen deficiency, the current is used as the pulling current of the fuel cell according to the maximum current provided by the current fuel cell.
In the related art, the anode hydrogen pressure of the existing fuel cell is usually controlled by an electromagnetic valve, when the fuel cell is used for a long time, the electromagnetic valve has aging phenomenon, and the capacity of the battery valve for controlling the anode hydrogen pressure of the fuel cell is reduced, so that the problems that the aging of the electromagnetic valve cannot meet the normal pressure control and the like exist, and the problem that the hydrogen pressure of the anode side of the fuel cell is insufficient and the problem that the fuel cell lacks hydrogen is caused when the fuel cell is serious exist.
In short, according to the control method of the fuel cell, the hydrogen demand and the current actual hydrogen supply of the anode of the fuel cell are firstly obtained, and then the load-pulling current of the fuel cell is calculated according to the actual hydrogen supply and the hydrogen demand, so that when the hydrogen pressure of the anode side of the fuel cell is insufficient, the load-pulling current of the fuel cell is controlled, the fuel cell is prevented from working under the condition of continuous hydrogen shortage, the safety performance of the fuel cell is improved, and the hydrogen pressure of the anode side of the fuel cell is ensured to be sufficient in the working process of a vehicle.
In some embodiments of the present invention, obtaining the hydrogen demand by obtaining the operation state of the upper-layer electricity object and according to the operation state of the upper-layer electricity object includes the steps of: acquiring a real-time power request of an upper-layer electricity object; calculating a preset load current of the fuel cell according to the real-time power request; and calculating the hydrogen demand of the fuel cell according to the preset load current. The upper-layer electricity object CAN be a motor in power equipment such as a vehicle and other electricity appliances in the power equipment, or the sum of the motor and other electricity appliances, when the upper-layer electricity object is the vehicle, the real-time power request of the upper-layer electricity object CAN be read through a CAN bus of the vehicle, and then the preset load current of the fuel cell CAN be calculated according to the read real-time power of the vehicle, the preset load current CAN be the load current of the vehicle in the current running state, and the hydrogen demand of the fuel cell is calculated through the preset load current, so that the hydrogen demand of the anode side of the fuel cell when the vehicle runs is obtained.
In some embodiments of the invention, obtaining an operating state of the vehicle and obtaining a hydrogen demand from the operating state of the vehicle comprises the steps of: acquiring request power of an upper-layer electricity object; calculating a preset load current of the fuel cell according to the request power; and calculating the hydrogen demand of the fuel cell according to the preset load current. When the upper-layer electricity consumption object is a vehicle, the request power of the upper-layer electricity consumption object CAN be read through a CAN bus of the vehicle, then the preset load-pulling current of the fuel cell is calculated according to the read request power of the vehicle, the preset load-pulling current CAN be the load-pulling current of the vehicle in the current running state, and the hydrogen demand of the fuel cell is calculated through the preset load-pulling current, so that the hydrogen demand of the anode side of the fuel cell when the vehicle runs is obtained.
In some embodiments of the present invention, detecting the current actual hydrogen supply to the fuel cell anode comprises the steps of: the current hydrogen pressure of the anode of the fuel cell is obtained, and the hydrogen supply amount is calculated from the current hydrogen pressure. It should be explained that, after the current hydrogen pressure of the anode of the fuel cell is obtained, the stoichiometric ratio of the current hydrogen is calculated according to the current hydrogen pressure, and then the actual hydrogen supply is further obtained according to the stoichiometric ratio of the current hydrogen, so that the accuracy of the actual hydrogen supply is improved.
In some embodiments of the present invention, calculating the pull-up current of the fuel cell based on the actual hydrogen supply and the hydrogen demand includes the steps of: comparing the preset hydrogen supply quantity of the anode with the actual hydrogen supply quantity and obtaining a comparison result; and selecting to output with preset pulling current or output with maximum current of the fuel cell according to the comparison result. Judging whether the current fuel cell anode has a hydrogen deficiency phenomenon or not according to the comparison of the preset hydrogen pressure of the anode and the actual hydrogen pressure, and if the current fuel cell anode does not have the hydrogen deficiency phenomenon, continuing to take the preset load current as the load current of the fuel cell; if the anode of the fuel cell has the phenomenon of hydrogen deficiency, the current is used as the pulling current of the fuel cell according to the maximum current provided by the current fuel cell.
In some embodiments of the present invention, if the actual hydrogen supply is greater than the hydrogen demand, the output is performed with a preset load current, and it is understood that when the actual hydrogen supply is greater than the hydrogen demand, the anode of the fuel cell has no hydrogen deficiency, and the preset load current is continuously used as the load current of the fuel cell for output; if the actual hydrogen supply is not greater than the hydrogen demand, the maximum current is output, and it is understood that when the actual hydrogen supply is less than or equal to the hydrogen demand, the anode of the fuel cell has a hydrogen deficiency phenomenon, and the current is used as the load current of the fuel cell according to the maximum current provided by the current fuel cell.
In some embodiments of the invention, the control method further comprises: acquiring a power request value of an upper-layer electricity object, calculating a preset pulling load current according to the power request value, and determining a hydrogen pressure set value corresponding to the preset pulling load current according to the preset pulling load current; and if the current hydrogen pressure is smaller than the hydrogen pressure setting value, determining the load current of the fuel cell according to the current hydrogen pressure and the hydrogen pressure setting value.
In some embodiments of the present invention, the hydrogen pressure setting value may be a hydrogen pressure setting range, and if the current hydrogen pressure falls within the hydrogen pressure range or exceeds the set hydrogen pressure range, the preset pull-load current is determined according to the current hydrogen pressure and the hydrogen pressure setting range.
As shown in fig. 2, fig. 2 is a graph of hydrogen pressure setting and output current setting of the fuel cell according to the present invention, where the graph may be obtained through multiple experiments, or may be preset according to certain working conditions, and the control method further includes calculating an upper electric object preset pull-load current a according to an upper electric object power request value, where the upper electric object may be a vehicle, and the request power may be read through a CAN bus of the vehicle.
As shown in fig. 2, the curve in the figure is a relation curve between the preset load current a and the hydrogen pressure set value of the fuel cell obtained after the test, the power request value of the power consumption object is obtained, the preset load current a corresponding to the power request value can be obtained through calculation, the hydrogen pressure set value b corresponding to the preset load current a is further determined through the curve graph, if the current hydrogen pressure c is smaller than the hydrogen pressure set value b, the load current I of the fuel cell is determined according to the current hydrogen pressure c and the hydrogen pressure set value b, the load current I of the fuel cell obtained through a plurality of variables is more accurate, and the accuracy of the load current of the fuel cell is improved.
Here, the hydrogen pressure minimum setting Smin is a value of the hydrogen pressure at which the pull-up current I is 0 in the initial state of the fuel cell, that is, at the start of the curve in fig. 2, and it is understood that the hydrogen pressure of the fuel cell starts to increase based on the hydrogen pressure minimum setting. Further, the fuel cell minimum preset current (Omin) is a current value corresponding to the hydrogen pressure minimum set value Smin in the initial state of the fuel cell, that is, the start point of the curve in fig. 2, and may be zero or non-zero.
In some embodiments of the present invention, determining the load current of the fuel cell according to the actual hydrogen pressure and the hydrogen pressure setting value b includes obtaining a first difference value between the current hydrogen pressure c and the hydrogen pressure minimum setting value Smin, that is, the first difference value is c-Smin, obtaining a second difference value between the hydrogen pressure setting value b and the hydrogen pressure minimum setting value Smin, that is, the second difference value is b-Smin, calculating an output current ratio according to the first difference value and the second difference value, wherein the output current ratio is (c-Smin)/(b-min), and determining the load current I of the fuel cell according to the output current ratio, the upper electricity consumption object current request value and the fuel cell minimum preset current (Omin) by the formula: i= (c-Smin)/(b-Smin) ×a-Omin) +omin. It can be appreciated that the pull-load current of the fuel cell obtained by the above formula is more accurate, thereby avoiding the fuel cell from operating under the condition of continuous under-hydrogen.
The fuel cell system according to the present invention is briefly described below.
The fuel cell system comprises a fuel cell and a control module, wherein the control module controls the output of the fuel cell according to the method, so that the fuel cell is prevented from working under the condition of continuous under-hydrogen, the safety performance of the fuel cell is improved, and the sufficient hydrogen pressure of the anode side of the fuel cell is ensured when a vehicle runs.
In some embodiments of the invention, the control module includes a first module, a second module, and a third module. The first module acquires the running state of the upper-layer electricity utilization object and acquires the hydrogen demand according to the state of the upper-layer electricity utilization object, and firstly judges the running state of the upper-layer electricity utilization object, wherein the upper-layer electricity utilization object can be in a stop state or a working state. When the upper-layer electricity object is in a working state, the demand of hydrogen can be further acquired by acquiring the current power of the upper-layer electricity object. The upper-layer electricity utilization object CAN be a vehicle, and the current speed and current power of the vehicle CAN be read through a CAN bus of the vehicle.
The second module detects the current actual hydrogen supply quantity of the fuel cell anode, the current actual hydrogen supply quantity of the fuel cell anode can be calculated by detecting the current actual hydrogen parameter of the fuel cell anode to obtain the stoichiometric ratio of the current hydrogen, wherein the current actual hydrogen parameter of the fuel cell anode can be the current actual hydrogen content, the current actual hydrogen density, the current actual hydrogen pressure and other parameters, and the actual hydrogen supply quantity is further obtained through the stoichiometric ratio of the current hydrogen after the stoichiometric ratio of the current hydrogen is calculated.
The third module calculates the load current of the fuel cell according to the actual hydrogen supply detected by the second module and the hydrogen demand acquired by the first module. Judging whether the current fuel cell anode has a hydrogen deficiency phenomenon according to the parameter comparison of the actual hydrogen supply amount and the hydrogen demand amount, and if the current fuel cell anode does not have the hydrogen deficiency phenomenon, continuing to take the preset load current as the load current of the fuel cell; if the anode of the fuel cell has the phenomenon of hydrogen deficiency, the current is used as the pulling current of the fuel cell according to the maximum current provided by the current fuel cell.
The vehicle according to the invention is briefly described below.
According to the invention, the vehicle is provided with the fuel cell of the embodiment, and the vehicle is provided with the fuel cell of the embodiment, so that when the vehicle is used as an upper-layer electricity consumption object of the fuel cell, the fuel cell can be prevented from working under the condition of continuous under-hydrogen, the safety performance of the fuel cell and the driving safety of the vehicle are improved, and the sufficient hydrogen pressure of the anode side of the fuel cell during the running of the vehicle is ensured.
In order to achieve the above-described embodiments, the present invention also proposes a computer-readable storage medium having stored thereon a computer program that, when executed by a processor, is capable of executing a method of controlling a fuel cell, the method comprising: acquiring the running state of an upper-layer electricity object and acquiring the hydrogen demand according to the running state of the upper-layer electricity object; detecting the current actual hydrogen supply quantity of the anode of the fuel cell; and calculating the load current of the fuel cell according to the actual hydrogen supply amount and the hydrogen demand amount.
In the description of the present specification, a description referring to terms "one embodiment," "some embodiments," "examples," "specific examples," or "some examples," etc., means that a particular feature, structure, material, or characteristic described in connection with the embodiment or example is included in at least one embodiment or example of the present invention. In this specification, schematic representations of the above terms are not necessarily directed to the same embodiment or example. Furthermore, the particular features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples. Furthermore, the different embodiments or examples described in this specification and the features of the different embodiments or examples may be combined and combined by those skilled in the art without contradiction.
Furthermore, the terms "first," "second," and the like, are used for descriptive purposes only and are not to be construed as indicating or implying a relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defining "a first" or "a second" may explicitly or implicitly include at least one such feature. In the description of the present invention, the meaning of "plurality" means at least two, for example, two, three, etc., unless specifically defined otherwise.
Any process or method descriptions in flow charts or otherwise described herein may be understood as representing modules, segments, or portions of code which include one or more executable instructions for implementing specific logical functions or steps of the process, and additional implementations are included within the scope of the preferred embodiment of the present invention in which functions may be executed out of order from that shown or discussed, including substantially concurrently or in reverse order from that shown or discussed, depending on the functionality involved, as would be understood by those reasonably skilled in the art of the embodiments of the present invention.
Logic and/or steps represented in the flowcharts or otherwise described herein, e.g., a ordered listing of executable instructions for implementing logical functions, can be embodied in any computer-readable medium for use by or in connection with an instruction execution system, apparatus, or device, such as a computer-based system, processor-containing system, or other system that can fetch the instructions from the instruction execution system, apparatus, or device and execute the instructions. For the purposes of this description, a "computer-readable medium" can be any means that can contain, store, communicate, propagate, or transport the program for use by or in connection with the instruction execution system, apparatus, or device. More specific examples (a non-exhaustive list) of the computer-readable medium would include the following: an electrical connection (electronic device) having one or more wires, a portable computer diskette (magnetic device), a Random Access Memory (RAM), a read-only memory (ROM), an erasable programmable read-only memory (EPROM or flash memory), an optical fiber device, and a portable compact disc read-only memory (CDROM). In addition, the computer readable medium may even be paper or other suitable medium on which the program is printed, as the program may be electronically captured, via, for instance, optical scanning of the paper or other medium, then compiled, interpreted or otherwise processed in a suitable manner, if necessary, and then stored in a computer memory.
It is to be understood that portions of the present invention may be implemented in hardware, software, firmware, or a combination thereof. In the above-described embodiments, the various steps or methods may be implemented in software or firmware stored in a memory and executed by a suitable instruction execution system. As with the other embodiments, if implemented in hardware, may be implemented using any one or combination of the following techniques, as is well known in the art: discrete logic circuits having logic gates for implementing logic functions on data signals, application specific integrated circuits having suitable combinational logic gates, programmable Gate Arrays (PGAs), field Programmable Gate Arrays (FPGAs), and the like.
Those of ordinary skill in the art will appreciate that all or a portion of the steps carried out in the method of the above-described embodiments may be implemented by a program to instruct related hardware, where the program may be stored in a computer readable storage medium, and where the program, when executed, includes one or a combination of the steps of the method embodiments.
In addition, each functional unit in the embodiments of the present invention may be integrated in one processing module, or each unit may exist alone physically, or two or more units may be integrated in one module. The integrated modules may be implemented in hardware or in software functional modules. The integrated modules may also be stored in a computer readable storage medium if implemented in the form of software functional modules and sold or used as a stand-alone product.
The above-mentioned storage medium may be a read-only memory, a magnetic disk or an optical disk, or the like. While embodiments of the present invention have been shown and described above, it will be understood that the above embodiments are illustrative and not to be construed as limiting the invention, and that variations, modifications, alternatives and variations may be made to the above embodiments by one of ordinary skill in the art within the scope of the invention.
Claims (10)
1. A control method for a fuel cell system, characterized by comprising:
acquiring the running state of an upper-layer electricity object and acquiring the hydrogen demand according to the running state of the upper-layer electricity object;
detecting the current actual hydrogen supply to the anode of the fuel cell;
and calculating the load current of the fuel cell according to the actual hydrogen supply amount and the hydrogen demand amount.
2. The control method of a fuel cell system according to claim 1, wherein the acquiring the operation state of the upper-layer electricity consumption object and acquiring the hydrogen demand amount according to the upper-layer electricity consumption object state includes:
acquiring a real-time power request of an upper-layer electricity object;
calculating a preset load current of the fuel cell according to the real-time power request;
and calculating the hydrogen demand of the fuel cell according to the preset load current.
3. The control method of a fuel cell system according to claim 1, wherein the detecting the current actual hydrogen supply amount to the anode of the fuel cell includes:
the current hydrogen pressure of the anode of the fuel cell is obtained, and the actual hydrogen supply amount is calculated according to the current hydrogen pressure.
4. The control method of the fuel cell system according to claim 1, characterized in that the calculating the pull-up current of the fuel cell from the actual hydrogen supply amount and the hydrogen demand amount includes:
comparing the preset hydrogen supply quantity of the anode with the actual hydrogen supply quantity and obtaining a comparison result;
and selecting to output with preset pulling current or output with maximum current of the fuel cell according to the comparison result.
5. The method for controlling a fuel cell system according to claim 1, wherein,
outputting with a preset load current if the actual hydrogen supply is greater than the hydrogen demand;
and outputting the maximum current if the actual hydrogen supply amount is not greater than the hydrogen demand amount.
6. The control method of a fuel cell system according to claim 2, characterized by further comprising:
acquiring a power request value of an upper-layer electricity object, calculating a preset pulling load current according to the power request value, and determining a hydrogen pressure set value corresponding to the preset pulling load current according to the preset pulling load current;
and if the current hydrogen pressure is smaller than the hydrogen pressure setting value, determining the load current of the fuel cell according to the current hydrogen pressure and the hydrogen pressure setting value.
7. The method according to claim 6, wherein determining the load current of the fuel cell according to the current hydrogen pressure and the hydrogen pressure set value if the current hydrogen pressure is smaller than the hydrogen pressure set value comprises:
calculating a first difference value of the current hydrogen pressure and a minimum hydrogen pressure set value, calculating a second difference value of the hydrogen pressure set value and the minimum hydrogen pressure set value, calculating an output current ratio according to the first difference value and the second difference value, and obtaining the pulling load current of the fuel cell according to the output current ratio, the power request value of the upper-layer electricity object and the minimum preset current of the fuel cell.
8. A fuel cell system, characterized by comprising:
a fuel cell;
a control module that controls the fuel cell and controls the fuel cell output according to the control method of any one of claims 1 to 6.
9. The fuel cell system according to claim 8, wherein the control module includes:
the first module acquires the running state of an upper-layer electricity utilization object and acquires the hydrogen demand according to the state of the upper-layer electricity utilization object;
a second module that detects a current actual hydrogen supply to the fuel cell anode;
and the third module calculates the load current of the fuel cell according to the actual hydrogen supply quantity and the hydrogen demand quantity.
10. A vehicle comprising the fuel cell system of any one of claims 8-9.
Priority Applications (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202210141746.9A CN116646567A (en) | 2022-02-16 | 2022-02-16 | Method of fuel cell system, fuel cell system and vehicle |
| PCT/CN2023/076511 WO2023155842A1 (en) | 2022-02-16 | 2023-02-16 | Method for fuel cell system, fuel cell system, and transit vehicle |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202210141746.9A CN116646567A (en) | 2022-02-16 | 2022-02-16 | Method of fuel cell system, fuel cell system and vehicle |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN116646567A true CN116646567A (en) | 2023-08-25 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202210141746.9A Pending CN116646567A (en) | 2022-02-16 | 2022-02-16 | Method of fuel cell system, fuel cell system and vehicle |
Country Status (2)
| Country | Link |
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| CN (1) | CN116646567A (en) |
| WO (1) | WO2023155842A1 (en) |
Family Cites Families (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB496076A (en) * | 1937-07-31 | 1938-11-24 | Sydney Nelson Maxfield | A new or improved electric radiator |
| JP2006339072A (en) * | 2005-06-03 | 2006-12-14 | Nissan Motor Co Ltd | Fuel cell system |
| US10722841B2 (en) * | 2017-07-05 | 2020-07-28 | Panasonic Intellectual Property Management Co., Ltd. | Hydrogen supply system |
| NL2022815B1 (en) * | 2019-03-26 | 2020-10-02 | Hymove Holding B V | A method for operating a hydrogen fuel cell system in a vehicle as well as a hydrogen fuel cell system for operation in said vehicle. |
| JP7409903B2 (en) * | 2020-02-27 | 2024-01-09 | Ｅｎｅｏｓ株式会社 | Hydrogen supply system, hydrogen station and hydrogen supply and demand management method |
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- 2022-02-16 CN CN202210141746.9A patent/CN116646567A/en active Pending
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| WO2023155842A1 (en) | 2023-08-24 |
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