CN117284161A - Loading method and device for fuel cell engine, vehicle and storage medium - Google Patents
Loading method and device for fuel cell engine, vehicle and storage medium Download PDFInfo
- Publication number
- CN117284161A CN117284161A CN202311265936.2A CN202311265936A CN117284161A CN 117284161 A CN117284161 A CN 117284161A CN 202311265936 A CN202311265936 A CN 202311265936A CN 117284161 A CN117284161 A CN 117284161A
- Authority
- CN
- China
- Prior art keywords
- current
- loading
- fuel cell
- stage
- rate
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
Links
- 238000011068 loading method Methods 0.000 title claims abstract description 514
- 239000000446 fuel Substances 0.000 title claims abstract description 192
- 238000003860 storage Methods 0.000 title claims abstract description 14
- 238000000034 method Methods 0.000 claims description 52
- 230000008569 process Effects 0.000 claims description 44
- 230000008859 change Effects 0.000 claims description 4
- 238000004590 computer program Methods 0.000 claims description 2
- 239000000376 reactant Substances 0.000 description 5
- 238000010586 diagram Methods 0.000 description 4
- UFHFLCQGNIYNRP-UHFFFAOYSA-N Hydrogen Chemical compound [H][H] UFHFLCQGNIYNRP-UHFFFAOYSA-N 0.000 description 3
- 230000015556 catabolic process Effects 0.000 description 3
- 238000006243 chemical reaction Methods 0.000 description 3
- 238000006731 degradation reaction Methods 0.000 description 3
- 229910052739 hydrogen Inorganic materials 0.000 description 3
- 239000001257 hydrogen Substances 0.000 description 3
- 230000007423 decrease Effects 0.000 description 2
- 238000004904 shortening Methods 0.000 description 2
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 229910052799 carbon Inorganic materials 0.000 description 1
- 239000003054 catalyst Substances 0.000 description 1
- 230000007797 corrosion Effects 0.000 description 1
- 238000005260 corrosion Methods 0.000 description 1
- 230000001351 cycling effect Effects 0.000 description 1
- 238000013500 data storage Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 230000006870 function Effects 0.000 description 1
- 239000007789 gas Substances 0.000 description 1
- 235000003642 hunger Nutrition 0.000 description 1
- 238000007689 inspection Methods 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 238000010295 mobile communication Methods 0.000 description 1
- 239000000178 monomer Substances 0.000 description 1
- 230000003287 optical effect Effects 0.000 description 1
- 230000035484 reaction time Effects 0.000 description 1
- 230000008707 rearrangement Effects 0.000 description 1
- 230000037351 starvation Effects 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
Classifications
-
- 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
- H01M8/04574—Current
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60L—PROPULSION OF ELECTRICALLY-PROPELLED VEHICLES; SUPPLYING ELECTRIC POWER FOR AUXILIARY EQUIPMENT OF ELECTRICALLY-PROPELLED VEHICLES; ELECTRODYNAMIC BRAKE SYSTEMS FOR VEHICLES IN GENERAL; MAGNETIC SUSPENSION OR LEVITATION FOR VEHICLES; MONITORING OPERATING VARIABLES OF ELECTRICALLY-PROPELLED VEHICLES; ELECTRIC SAFETY DEVICES FOR ELECTRICALLY-PROPELLED VEHICLES
- B60L58/00—Methods or circuit arrangements for monitoring or controlling batteries or fuel cells, specially adapted for electric vehicles
- B60L58/30—Methods or circuit arrangements for monitoring or controlling batteries or fuel cells, specially adapted for electric vehicles for monitoring or controlling fuel cells
-
- 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
- H01M8/04895—Current
-
- 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
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60L—PROPULSION OF ELECTRICALLY-PROPELLED VEHICLES; SUPPLYING ELECTRIC POWER FOR AUXILIARY EQUIPMENT OF ELECTRICALLY-PROPELLED VEHICLES; ELECTRODYNAMIC BRAKE SYSTEMS FOR VEHICLES IN GENERAL; MAGNETIC SUSPENSION OR LEVITATION FOR VEHICLES; MONITORING OPERATING VARIABLES OF ELECTRICALLY-PROPELLED VEHICLES; ELECTRIC SAFETY DEVICES FOR ELECTRICALLY-PROPELLED VEHICLES
- B60L2260/00—Operating Modes
- B60L2260/40—Control modes
- B60L2260/44—Control modes by parameter estimation
-
- 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
Landscapes
- Engineering & Computer Science (AREA)
- Life Sciences & Earth Sciences (AREA)
- Sustainable Development (AREA)
- Sustainable Energy (AREA)
- Manufacturing & Machinery (AREA)
- Chemical & Material Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Electrochemistry (AREA)
- General Chemical & Material Sciences (AREA)
- Artificial Intelligence (AREA)
- Health & Medical Sciences (AREA)
- Automation & Control Theory (AREA)
- Computing Systems (AREA)
- Evolutionary Computation (AREA)
- Fuzzy Systems (AREA)
- Medical Informatics (AREA)
- Software Systems (AREA)
- Theoretical Computer Science (AREA)
- Power Engineering (AREA)
- Transportation (AREA)
- Mechanical Engineering (AREA)
- Fuel Cell (AREA)
Abstract
The invention discloses a loading method and a loading device of a fuel cell engine, a vehicle and a storage medium, wherein the loading method of the fuel cell engine comprises the following steps: obtaining a target required current; and comparing the target required current with a current loading threshold value, and adjusting the current loading rate of the fuel cell engine according to the comparison result so as to load the current of the fuel cell engine to the target required current, wherein the current loading threshold value is the maximum limit value of the current loading current of the fuel cell engine. The technical scheme provided by the invention is used for reducing the influence of loading on the fuel cell engine.
Description
Technical Field
The present invention relates to the field of vehicle technologies, and in particular, to a loading method and apparatus for a fuel cell engine, a vehicle, and a storage medium.
Background
A significant factor affecting the life of a fuel cell engine is variable load, and heat/humidity cycles, gas starvation, and potential cycling that occur under variable load conditions can lead to mechanical degradation of components, carbon corrosion, and catalyst degradation, which can lead to reduced fuel cell engine performance and life degradation.
The existing loading method still has the problems of undergassing and overshoot control in the variable load process, and the performance of the fuel cell engine is easy to be reduced and the service life of the fuel cell engine is easy to be reduced.
Disclosure of Invention
The invention provides a loading method and device of a fuel cell engine, a vehicle and a storage medium, so as to reduce the influence of loading on the fuel cell engine.
In a first aspect, an embodiment of the present invention provides a loading method of a fuel cell engine, to obtain a target required current;
and comparing the target required current with a current loading threshold value, and adjusting the current loading rate of the fuel cell engine according to a comparison result so as to load the current of the fuel cell engine to the target required current, wherein the current loading threshold value is the maximum limit value of the current loading current of the fuel cell engine.
Optionally, comparing the target required current with a current loading threshold, and adjusting a current loading rate of the fuel cell engine according to a comparison result, including:
if the target required current is smaller than the current loading threshold value, adjusting the current loading rate of the fuel cell engine to be a first loading inclined rate;
if the target required current is greater than or equal to the current loading threshold, dividing the loading process of the fuel cell engine into three stages, and adjusting current loading rates in the three stages to be a second loading rate, a third loading rate and a fourth loading rate in sequence, wherein the second loading rate and the fourth loading rate are smaller than the third loading rate.
Optionally, the three stages sequentially include a first stage, a second stage and a third stage;
the loading method of the fuel cell engine further comprises the following steps:
loading the current of the fuel cell motor from the present current to a first current during the first phase;
loading the current of the fuel cell motor from the first current to a second current in the second phase;
loading the current of the fuel cell motor from the second current to the target demand current in the third phase;
the difference value between the first current and the current is smaller than the difference value between the second current and the first current, and the difference value between the target required current and the second current is smaller than the difference value between the second current and the first current.
Optionally, the method further comprises:
and in the loading process of the three stages of the fuel cell engine, acquiring an average single voltage drop value of the fuel cell after each stage is loaded, and adjusting the current loading rate of the fuel cell engine in the current stage and all subsequent stages according to the average single voltage drop value.
Optionally, adjusting the current loading rate of the fuel cell engine in the current stage and all subsequent stages according to the average cell voltage drop value includes:
if the average single voltage drop value is larger than or equal to a preset threshold value after the loading of the current stage is finished, adjusting the current loading rate of the fuel cell engine in the current stage and all subsequent stages, wherein the adjusted current loading rate is smaller than the original current loading rate of the corresponding stage;
and if the average single voltage drop value is smaller than the preset threshold value after the loading of the current stage is finished, adjusting the current loading rate of the fuel cell engine in the current stage and all subsequent stages to be kept as the original current loading rate.
Optionally, the three stages sequentially include a first stage, a second stage and a third stage;
and if the average single voltage drop value is greater than or equal to a preset threshold value after the loading of the current stage is finished, adjusting the current loading rate of the fuel cell engine in the current stage and all subsequent stages, wherein the current loading rate comprises the following steps:
when loading is completed in the first stage and the average single voltage drop value is judged to be greater than or equal to a first preset threshold value, the current loading rates of the fuel cell engine in the first stage, the second stage and the third stage are sequentially adjusted to be a fifth loading rate, a sixth loading rate and a seventh loading rate, wherein the ratio of the fifth loading rate to the second loading rate, the ratio of the sixth loading rate to the third loading rate and the ratio of the seventh loading rate to the fourth loading rate are the same, and the ratio is smaller than 1;
when the second stage loading is carried out and the loading is completed in the second stage and the average single voltage drop value is judged to be larger than or equal to a second preset threshold value, the current loading rate of the fuel cell engine in the second stage and the third stage is adjusted to be an eighth loading rate and a ninth loading rate in sequence, wherein the ratio of the eighth loading rate to the sixth loading rate and the ratio of the ninth loading rate to the seventh loading rate are the same, the ratio is smaller than 1, and the eighth loading rate is larger than the second loading rate and the fifth loading rate;
and carrying out loading in the third stage, and when loading is completed in the third stage and the average single voltage drop value is larger than or equal to a third preset threshold value, adjusting the current loading rate of the fuel cell engine in the third stage to be tenth loading rate, wherein the ratio of the tenth loading rate to the ninth loading rate is smaller than 1.
Optionally, the method further comprises:
and controlling the air flow change rate to be greater than or equal to the current loading rate in the process of loading the current of the fuel cell engine to the target required current.
In a second aspect, an embodiment of the present invention provides a loading device for a fuel cell engine, including:
the data acquisition module is used for acquiring target required current;
and the current loading rate adjusting module is used for comparing the target required current with a current loading threshold value, and adjusting the current loading rate of the fuel cell engine according to a comparison result so as to load the current of the fuel cell engine to the target required current, wherein the current loading threshold value is the maximum limit value of the current loading current of the fuel cell engine.
In a third aspect, an embodiment of the present invention provides a vehicle including:
one or more processors;
a storage device having one or more programs stored thereon,
the one or more programs, when executed by the one or more processors, cause the one or more processors to implement the loading method of the fuel cell engine of the first aspect.
In a third aspect, an embodiment of the present invention provides a computer readable medium having a computer program stored thereon, wherein the program when executed by a processor implements the loading method of the fuel cell engine of the first aspect.
According to the scheme provided by the invention, the target required current is obtained, the target required current is compared with the current loading threshold value, and then the current loading rate of the fuel cell engine is adjusted according to the comparison result, so that the current of the fuel cell engine is loaded to the target required current, the stable running state of the system clock of the fuel cell engine in the loading process can be ensured, the problems of underinflation and control overshoot in the loading process caused by too high loading rate are avoided, and meanwhile, the duration of the loading process can be shortened.
It should be understood that the description in this section is not intended to identify key or critical features of the embodiments of the invention or to delineate the scope of the invention. Other features of the present invention will become apparent from the description that follows.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions of the prior art, a brief description will be given below of the drawings required for the embodiments or the description of the prior art, and it is obvious that although the drawings in the following description are specific embodiments of the present invention, it is obvious to those skilled in the art that the basic concepts of the device structure, the driving method and the manufacturing method, which are disclosed and suggested according to the various embodiments of the present invention, are extended and extended to other structures and drawings, and it is needless to say that these should be within the scope of the claims of the present invention.
FIG. 1 is a flow chart of a loading method of a fuel cell engine according to an embodiment of the present invention;
FIG. 2 is a flow chart of another method of loading a fuel cell engine according to an embodiment of the present invention;
FIG. 3 is a flow chart of a loading method of a fuel cell engine according to another embodiment of the present invention;
FIG. 4 is a flow chart of a loading method of a further fuel cell engine according to an embodiment of the present invention;
FIG. 5 is a flow chart of yet another method for loading a fuel cell engine according to an embodiment of the present invention;
fig. 6 is a schematic structural diagram of a loading device of a fuel cell engine according to an embodiment of the present invention;
fig. 7 is a schematic structural diagram of a vehicle according to an embodiment of the present invention.
Detailed Description
For the purpose of making the objects, technical solutions and advantages of the present invention more apparent, the technical solutions of the present invention will be clearly and completely described by means of implementation examples with reference to the accompanying drawings in the embodiments of the present invention, and it is apparent that the described embodiments are some embodiments of the present invention, not all embodiments. All other embodiments obtained by those skilled in the art based on the basic concepts disclosed and suggested by the embodiments of the present invention are within the scope of the present invention.
Fig. 1 is a flowchart of a loading method of a fuel cell engine according to an embodiment of the present invention, as shown in fig. 1, the method specifically includes the following steps:
s101, acquiring target required current.
S102, comparing the target required current with a current loading threshold, and adjusting the current loading rate of the fuel cell engine according to the comparison result so as to load the current of the fuel cell engine to the target required current, wherein the current loading threshold is the maximum limit value of the current loading current of the fuel cell engine.
The target current required after the loading of the fuel cell engine is a target current value that needs to be achieved, and the specific value of the target current can be set according to the actual requirement, which is not specifically limited herein. It should be noted that the target demand current is greater than the initial current value before loading.
Specifically, the current of the fuel cell engine is affected by the air supply amount, temperature, pressure, humidity and other factors in the system in the loading process, and the maximum limit value of the current loading current of the fuel cell engine, namely the current loading threshold value, can be calculated by combining the factors in the current system working condition. The current loading threshold values of the fuel cell engine under different working conditions may be different, and the current loading threshold values can be calculated in advance according to actual conditions and can be obtained through table lookup. Therefore, after the target demand current is obtained, the target demand current can be continuously compared with the current loading threshold value, and the current loading rate of the fuel cell engine can be adjusted according to the comparison result, so that the system clock of the fuel cell engine is ensured to keep a stable running state in the loading process, the problems of underinflation and control overshoot in the loading process caused by too high loading rate are avoided, and meanwhile, the duration of the loading process can be shortened.
In this embodiment, the current loading rate of the fuel cell engine is adjusted according to the comparison result by obtaining the target demand current and comparing the target demand current with the current loading threshold value, so as to load the current of the fuel cell engine to the target demand current, thereby ensuring that the fuel cell engine keeps a stable running state at the moment in the loading process, avoiding the problems of underinflation and control overshoot in the loading process caused by too fast loading rate, and shortening the duration of the loading process.
Optionally, fig. 2 is a flowchart of another loading method of a fuel cell engine according to an embodiment of the present invention, as shown in fig. 2, comparing a target required current with a current loading threshold, and adjusting a current loading rate of the fuel cell engine according to a comparison result, including: if the target required current is smaller than the current loading threshold value, adjusting the current loading rate of the fuel cell engine to be a first loading inclined rate; if the target required current is greater than or equal to the current loading threshold, dividing the loading process of the fuel cell engine into three stages, and adjusting the current loading rates in the three stages to be a second loading rate, a third loading rate and a fourth loading rate in sequence, wherein the second loading rate and the fourth loading rate are smaller than the third loading rate. Therefore, the loading method of the fuel cell engine specifically includes the steps of:
s201, acquiring a target required current.
S202, comparing the target required current with a current loading threshold, if the target required current is smaller than the current loading threshold, executing step S203, and if the target required current is greater than or equal to the current loading threshold, executing step S204.
S203, adjusting the current loading rate of the fuel cell engine to be a first loading ramp rate.
The specific value of the first loading inclined speed can be set according to actual requirements, and under the condition that the stable loading process of the system is ensured, the first loading speed can be increased, so that the loading process is completed quickly.
S204, dividing the loading process of the fuel cell engine into three stages, and adjusting current loading rates in the three stages to be a second loading rate, a third loading rate and a fourth loading rate in sequence, wherein the second loading rate and the fourth loading rate are smaller than the third loading rate.
Specific values of the second loading rate, the third loading rate and the fourth loading rate may be set according to actual requirements, which is not specifically limited in the embodiment of the present invention.
Specifically, the second loading rate and the fourth loading rate are both set to be smaller than the third loading rate, so that the purpose is to slowly load the reactant at the second loading rate, control the air compressor, the hydrogen supply module and the like to respond to increase the air inflow of the reactant, so that the air inflow of the reactant is increased, a good reaction environment is provided for the subsequent loading process, then the rapid loading is performed at the third loading rate, the duration of the whole loading process is shortened, then the slow loading is performed at the fourth loading rate, the overshoot phenomenon is prevented when the current reaches the vicinity of the target required current, and the current is ensured to be stably loaded to the target required current.
It should be noted that the second loading rate and the fourth loading rate may be the same or different, which is not specifically limited in the embodiment of the present invention.
Optionally, the three stages sequentially include a first stage, a second stage and a third stage; the loading method of the fuel cell engine further comprises the following steps: in a first phase, loading the current of the fuel cell motor from the present current to a first current; in a second phase, loading the current of the fuel cell motor from the first current to a second current; in a third stage, loading the current of the fuel cell motor from the second current to a target demand current; the difference value between the first current and the current is smaller than the difference value between the second current and the first current, and the difference value between the target demand current and the second current is smaller than the difference value between the second current and the first current.
Specifically, in the first stage, the current of the fuel cell engine is loaded from the current at the second loading rate, the loading process in the first stage is completed when the current of the fuel cell engine reaches the first current, then the fuel cell engine enters the second stage, the current of the fuel cell engine is loaded from the first current to the second current at the third loading rate, then the fuel cell engine enters the third stage, and the current of the fuel cell engine is loaded from the second current to the target required current at the fourth loading rate, so that the whole loading process is completed. Further, by setting the difference value between the first current and the current to be smaller than the difference value between the second current and the first current, and the difference value between the target demand current and the second current to be smaller than the difference value between the second current and the first current, the current loading range of the first stage and the current loading range of the third stage are smaller than the current loading range of the second stage, and the first stage is the loading initial stage and the third stage is the loading final stage, so that the loading ranges of the first stage and the third stage can be reduced as much as possible under the condition that the stable operation of the loading initial stage and the loading final stage of the fuel cell engine are ensured and the overshoot does not occur, and the second stage can load a larger current loading range at a larger loading rate, thereby being beneficial to the quick completion of the loading process.
Therefore, the timeliness and the accuracy of the loading process are ensured by carrying out the loading control in a segmented way, the accurate control of each stage is realized, the reaction environment is prepared by slow loading in the first stage, the reaction time is shortened by fast loading in the second stage, and the target value is reached by slow loading in the third stage, so that the possible insufficient air supply and overshoot close to the target value in the initial stage of the reaction can be avoided, and the loading time can be shortened to the greatest extent.
Optionally, fig. 3 is a flowchart of a loading method of a fuel cell engine according to another embodiment of the present invention, where, as shown in fig. 3, the loading method of a fuel cell engine further includes: in the loading process of the fuel cell engine in three stages, the average single cell voltage drop value of the fuel cell after loading in each stage is obtained, and the current loading rate of the fuel cell engine in the current stage and all subsequent stages is adjusted according to the average single cell voltage drop value. Therefore, the loading method of the fuel cell engine specifically includes the steps of:
s301, acquiring a target required current.
S302, comparing the target demand current with a current loading threshold, if the target demand current is smaller than the current loading threshold, executing step S303, and if the target demand current is greater than or equal to the current loading threshold, executing step S304.
S303, adjusting the current loading rate of the fuel cell engine to be a first loading ramp rate.
S304, dividing the loading process of the fuel cell engine into three stages, and adjusting current loading rates in the three stages to be a second loading rate, a third loading rate and a fourth loading rate in sequence, wherein the second loading rate and the fourth loading rate are smaller than the third loading rate.
And S305, in the loading process of the fuel cell engine in three stages, acquiring an average single voltage drop value of the fuel cell after loading in each stage, and adjusting the current loading rate of the fuel cell engine in the current stage and all subsequent stages according to the average single voltage drop value.
It can be understood that in the loading process of the current of the fuel cell engine, the output voltage of the fuel cell decreases along with the increase of the current, so that after the current is loaded in each stage, the average single cell voltage decrease value of the fuel cell corresponding to the stage can be obtained by collecting the output voltage of the fuel cell before the current is loaded and the output voltage of the fuel cell after the current is loaded; or collecting each single voltage of the fuel cell before current loading and each single voltage of the fuel cell after current loading through the single voltage inspection module of the fuel cell, calculating an average value difference, and adjusting the current loading rate of the fuel cell engine in the current stage and all subsequent stages according to the average single voltage drop value, wherein the adjusted current loading rate of the fuel cell engine can be kept to be the original current loading rate or be smaller than the original current loading rate, and can be determined according to the specific condition of the average single voltage drop value. For example, the current stage is a first stage, and the current loading rate of the fuel cell engine in the first stage, the second stage and the third stage can be adjusted according to the average single voltage drop value adjustment obtained after the first stage is finished; if the current stage is the second stage, the current loading rate of the fuel cell engine in the second stage and the third stage can be adjusted according to the average single voltage drop value adjustment obtained after the second stage is finished; if the current stage is the third stage, the current loading rate of the fuel cell engine in the third stage can be adjusted according to the average cell voltage drop value adjustment obtained after the third stage is finished.
Optionally, with continued reference to fig. 3, the current loading rate of the fuel cell engine in the current stage and all subsequent stages is adjusted according to the average cell voltage drop value, including steps S306 and S307.
And S306, if the average single voltage drop value is larger than or equal to a preset threshold value after the loading of the current stage is finished, adjusting the current loading rate of the fuel cell engine in the current stage and all subsequent stages, wherein the adjusted current loading rate is smaller than the original current loading rate of the corresponding stage.
And S307, if the average single voltage drop value is smaller than a preset threshold value after the loading of the current stage is finished, adjusting the current loading rate of the fuel cell engine in the current stage and all subsequent stages to be kept as the original current loading rate.
The specific value of the preset threshold may be set according to the actual situation, or may be a theoretical average monomer voltage drop value corresponding to different current loading ranges obtained through table lookup, which is not limited herein specifically. It should be noted that the current loading ranges at different stages are different, and the specific magnitudes of the corresponding preset thresholds are also different.
Specifically, after loading is completed in the current stage, the obtained average single voltage drop value is compared with a preset threshold corresponding to the current loading range of the stage, if the average single voltage drop value is greater than or equal to the preset threshold, the current loading rate of the stage is too large, the current loading rates of the fuel cell engine in the current stage and all subsequent stages can be adjusted, and the adjusted current loading rate is smaller than the original current loading rate of the corresponding stage, so that loading can be performed at a smaller loading rate when current loading is performed subsequently, and stable operation of the fuel cell engine is ensured. In contrast, if the average cell voltage drop is less than the preset threshold, the fuel cell performance is good, the loading in this stage is within a reasonable range, and the current loading rate of the fuel cell engine in the current stage and all subsequent stages can be adjusted to be kept at the original current loading rate.
Optionally, fig. 4 is a flowchart of a loading method of another fuel cell engine according to an embodiment of the present invention, where, as shown in fig. 4, three stages sequentially include a first stage, a second stage, and a third stage; if the average single voltage drop value is greater than or equal to the preset threshold value after the loading of the current stage is finished, adjusting the current loading rate of the fuel cell engine in the current stage and all subsequent stages, including: when loading is completed in the first stage and the average single voltage drop value is judged to be greater than or equal to a first preset threshold value, the current loading rate of the fuel cell engine in the first stage, the second stage and the third stage is adjusted to be a fifth loading rate, a sixth loading rate and a seventh loading rate in sequence, wherein the ratio of the fifth loading rate to the second loading rate, the ratio of the sixth loading rate to the third loading rate and the ratio of the seventh loading rate to the fourth loading rate are the same, and the ratio is smaller than 1; carrying out second-stage loading, and when loading is completed in the second stage and the average single voltage drop value is judged to be greater than or equal to a second preset threshold value, adjusting the current loading rate of the fuel cell engine in the second stage and the third stage to be an eighth loading rate and a ninth loading rate in sequence, wherein the ratio of the eighth loading rate to the sixth loading rate and the ratio of the ninth loading rate to the seventh loading rate are the same, the ratio is smaller than 1, and the eighth loading rate is greater than the second loading rate and the fifth loading rate; and loading in the third stage, and when loading is completed in the third stage and the average single voltage drop value is judged to be greater than or equal to a third preset threshold value, adjusting the current loading rate of the fuel cell engine in the third stage to be tenth loading rate, wherein the ratio of the tenth loading rate to the ninth loading rate is smaller than 1. Therefore, the loading method of the fuel cell engine specifically includes the steps of:
s401, acquiring target required current.
S402, comparing the target demand current with a current loading threshold, if the target demand current is smaller than the current loading threshold, executing step S403, and if the target demand current is greater than or equal to the current loading threshold, executing step S404.
S403, adjusting the current loading rate of the fuel cell engine to be a first loading ramp rate.
S404, dividing the loading process of the fuel cell engine into three stages, and adjusting current loading rates in the three stages to be a second loading rate, a third loading rate and a fourth loading rate in sequence, wherein the second loading rate and the fourth loading rate are smaller than the third loading rate.
S405, in the loading process of the fuel cell engine in three stages, obtaining the average single voltage drop value of the fuel cell after loading in each stage.
And S406, finishing loading in the first stage, and adjusting the current loading rate of the fuel cell engine in the first stage, the second stage and the third stage to be a fifth loading rate, a sixth loading rate and a seventh loading rate in sequence when the average single voltage drop value is larger than or equal to a first preset threshold value, wherein the ratio of the fifth loading rate to the second loading rate, the ratio of the sixth loading rate to the third loading rate and the ratio of the seventh loading rate to the fourth loading rate are the same, and the ratio is smaller than 1.
The first preset threshold value can be set according to actual conditions.
It should be noted that, the specific size of the ratio of the fifth loading rate to the second loading rate may be set according to the actual requirement, and is not limited herein, for example, 0.8.
And S407, loading in the second stage, and when loading is completed in the second stage and the average single voltage drop value is judged to be greater than or equal to a second preset threshold value, adjusting the current loading rate of the fuel cell engine in the second stage and the third stage to be an eighth loading rate and a ninth loading rate in sequence, wherein the ratio of the eighth loading rate to the sixth loading rate and the ratio of the ninth loading rate to the seventh loading rate are the same, the ratio is less than 1, and the eighth loading rate is greater than the second loading rate and the fifth loading rate.
The second preset threshold value can be set according to actual conditions.
And S408, loading in the third stage, and when loading is completed in the third stage and the average single voltage drop value is judged to be greater than or equal to a third preset threshold value, adjusting the current loading rate of the fuel cell engine in the third stage to be a tenth loading rate, wherein the ratio of the tenth loading rate to the ninth loading rate is less than 1.
The third preset threshold value can be set according to actual conditions.
And S409, if the average single voltage drop value is smaller than a preset threshold value after the loading of the current stage is finished, adjusting the current loading rate of the fuel cell engine in the current stage and all subsequent stages to be kept as the original current loading rate.
Specifically, when loading is completed in the first stage and it is determined that the average cell voltage drop value is greater than or equal to the first preset threshold, it is indicated that the current loading rate of the first stage is too high, and at this time, the current loading rates of the fuel cell engine in the first stage, the second stage, and the third stage may be adjusted to be sequentially a fifth loading rate, a sixth loading rate, and a seventh loading rate, where the adjusted fifth loading rate of the first stage is smaller than the second loading rate, and is stored, so that the adjusted fifth loading rate is used when loading is performed in the first stage next time, and the adjusted sixth loading rate of the second stage is smaller than the third loading rate, and the seventh loading rate of the third stage is smaller than the fourth loading rate, and when loading is not performed in the second stage, a ratio of the fifth loading rate to the second loading rate, a ratio of the sixth loading rate to the third loading rate, and a ratio of the seventh loading rate to the fourth loading rate may be set, that is the adjusted in the same ratio of the third loading rate of the second stage to the fifth loading rate to the fourth loading rate. In contrast, if loading is completed in the first stage and it is determined that the average cell voltage drop value is smaller than the first preset threshold, it is indicated that the performance of the fuel cell is good, the current loading rate of the fuel cell engine in the current stage and all subsequent stages can be adjusted to be kept at the original current loading rate, that is, the first stage is kept at the second loading rate, the second stage is kept at the third loading rate, and the third stage is kept at the fourth loading rate.
Then, the second stage loading process loads at the adjusted sixth loading rate or the third loading rate, when the second stage finishes loading and the average single voltage drop value is determined to be greater than or equal to the second preset threshold value, the current loading rate of the stage is indicated to be too high, and the current loading rates of the fuel cell engine in the second stage and the third stage can be adjusted to be the eighth loading rate and the ninth loading rate in sequence, wherein the eighth loading rate of the second stage can be stored, so that the loading is directly performed at the eighth loading rate when the second stage loading is performed next time, and the loading is performed at the adjusted ninth loading rate when the third stage is performed next time. It should be noted that, the ratio of the eighth loading rate to the sixth loading rate and the ratio of the ninth loading rate to the seventh loading rate are the same, and the ratio is smaller than 1, and the specific value of the ratio can be set according to the actual requirement, which is not specifically limited herein; meanwhile, the eighth loading rate should always be greater than the second loading rate and the fifth loading rate of the first stage. In contrast, if loading is completed in the second stage and it is determined that the average cell voltage drop value is smaller than the second preset threshold, it is indicated that the performance of the fuel cell is good, and the loading in the second stage is within a reasonable range, the current loading rate of the fuel cell engine in the current stage and all subsequent stages can be adjusted to be kept at the original current loading rate, that is, the loading rate in the second stage is kept at the sixth loading rate or the third loading rate.
Then, the loading process in the third stage is loaded at the adjusted ninth loading rate, fourth loading rate or seventh loading rate, and when the loading is completed in the third stage and the average cell voltage drop value is determined to be greater than or equal to the third preset threshold value, the current loading rate in the third stage is too high, and the current loading rate of the fuel cell engine in the third stage can be adjusted to be the tenth loading rate, and the ratio of the tenth loading rate to the ninth loading rate is smaller than 1. The specific value of the ratio may be set according to actual requirements, and is not particularly limited herein. In contrast, if loading is completed in the third stage and it is determined that the average cell voltage drop value is smaller than the third preset threshold, it is indicated that the performance of the fuel cell is good, and the loading rate of the fuel cell engine in the third stage is adjusted to be kept at the original current loading rate within a reasonable range, that is, the loading rate in the third stage is kept at the ninth loading rate or the fourth loading rate or the seventh loading rate.
Optionally, fig. 5 is a flowchart of a loading method of a fuel cell engine according to another embodiment of the present invention, where, as shown in fig. 5, the loading method of a fuel cell engine further includes: in the process of loading the current of the fuel cell engine to the target required current, the air flow rate is controlled to be greater than or equal to the current loading rate. Thus, the method comprises in particular the following steps:
s501, acquiring a target required current.
S502, comparing the target required current with a current loading threshold, and adjusting the current loading rate of the fuel cell engine according to the comparison result so as to load the current of the fuel cell engine to the target required current, wherein the current loading threshold is the maximum limit value of the current loading current of the fuel cell engine.
S503, controlling the air flow change rate to be larger than or equal to the current loading rate in the process of loading the current of the fuel cell engine to the target required current.
It can be understood that in the current loading process of the fuel cell engine, in order to ensure the stable reliability of the loading process, the air inflow of the reactants needs to be synchronously increased, and considering that the air inflow of the hydrogen is less influenced by equipment, the air inflow of the hydrogen can be considered to meet the stable performance of the whole loading process, and for air, the air compressor is influenced by the rotating speed of the air compressor and the like, the problem that the ratio of the reactants is unreasonable due to the lack of air can be caused, so that the air flow change rate needs to be controlled to be larger than or equal to the current loading rate, the stable and rapid performance of the whole loading process is ensured, and the reliable operation of the fuel cell engine is further ensured.
Based on the same inventive concept, the embodiment of the present invention further provides a loading device of a fuel cell engine, and fig. 6 is a schematic structural diagram of the loading device of the fuel cell engine provided in the embodiment of the present invention, as shown in fig. 6, where the control device includes: a data acquisition module 10 for acquiring a target demand current; the current loading rate adjustment module 20 is configured to compare the target required current with a current loading threshold, and adjust a current loading rate of the fuel cell engine according to a comparison result, so as to load the current of the fuel cell engine to the target required current, where the current loading threshold is a maximum limit value of the current loading current of the fuel cell engine.
In this embodiment, the data acquisition module 10 acquires the target demand current, and sends the target demand current to the current loading rate adjustment module 20, so that the current loading rate adjustment module 20 compares the target demand current with the current loading threshold, and then adjusts the current loading rate of the fuel cell engine according to the comparison result, so as to load the current of the fuel cell engine to the target demand current, thereby ensuring that the system clock of the fuel cell engine keeps a stable running state in the loading process, avoiding the problems of undergassing and overshoot control in the loading process caused by too fast loading rate, and shortening the duration of the loading process.
In addition, the present embodiment also provides a vehicle, fig. 7 is a schematic structural diagram of a vehicle provided in the embodiment of the present invention, and as shown in fig. 7, the vehicle includes a processor 910, a memory 920, an input device 930, and an output device 940; the number of processors 910 in the vehicle may be one or more, and the processors 910, memory 920, input devices 930, and output devices 940 in the vehicle may be connected by buses or other means.
The memory 920 is a computer readable storage medium, and may be used to store a software program, a computer executable program, and a module, such as program instructions or modules corresponding to the loading method of the fuel cell engine in the embodiment of the present invention (the data acquisition module 10 and the current loading rate adjustment module 20 in the loading device of the fuel cell engine). The processor 910 executes various functional applications of the vehicle and data processing by running software programs, instructions and modules stored in the memory 920, i.e., implements the loading method of the fuel cell engine described above.
Memory 920 may include primarily a program storage area and a data storage area, wherein the program storage area may store an operating system, at least one application program required for functionality; the storage data area may store data created according to the use of the terminal, etc. In addition, memory 920 may include high-speed random access memory, and may also include non-volatile memory, such as at least one magnetic disk storage device, flash memory device, or other non-volatile solid-state storage device. In some examples, memory 920 may further include memory remotely located with respect to processor 910, which may be connected to the vehicle via a network. Examples of such networks include, but are not limited to, the internet, intranets, local area networks, mobile communication networks, and combinations thereof.
The input device 930 may be used to receive input numeric or character information and to generate key signal inputs related to user settings and function control of the vehicle. The output device 940 may include a display device such as a display screen.
The embodiment of the invention also provides a computer readable storage medium, wherein the computer readable storage medium stores computer instructions, and the computer instructions are used for enabling a processor to realize the loading method of the fuel cell engine provided by any embodiment when the processor executes the computer instructions.
From the above description of embodiments, it will be clear to a person skilled in the art that the present invention may be implemented by means of software and necessary general purpose hardware, but of course also by means of hardware, although in many cases the former is a preferred embodiment. Based on such understanding, the technical solution of the present invention may be embodied essentially or in a part contributing to the prior art in the form of a software product, which may be stored in a computer readable storage medium, such as a floppy disk, a Read-Only Memory (ROM), a random access Memory (Random Access Memory, RAM), a FLASH Memory (FLASH), a hard disk or an optical disk of a computer, etc., including several instructions for causing a computer device (which may be a personal computer, a server, a network device, etc.) to execute the method of the embodiments of the present invention.
Note that the above is only a preferred embodiment of the present invention and the technical principle applied. It will be understood by those skilled in the art that the present invention is not limited to the particular embodiments described herein, and that various obvious changes, rearrangements, combinations, and substitutions can be made by those skilled in the art without departing from the scope of the invention. Therefore, while the invention has been described in connection with the above embodiments, the invention is not limited to the embodiments, but may be embodied in many other equivalent forms without departing from the spirit or scope of the invention, which is set forth in the following claims.
Claims (10)
1. A loading method of a fuel cell engine, comprising:
obtaining a target required current;
and comparing the target required current with a current loading threshold value, and adjusting the current loading rate of the fuel cell engine according to a comparison result so as to load the current of the fuel cell engine to the target required current, wherein the current loading threshold value is the maximum limit value of the current loading current of the fuel cell engine.
2. The loading method of the fuel cell engine according to claim 1, wherein comparing the target required current with a current loading threshold value and adjusting the current loading rate of the fuel cell engine according to the comparison result, comprises:
if the target required current is smaller than the current loading threshold value, adjusting the current loading rate of the fuel cell engine to be a first loading inclined rate;
if the target required current is greater than or equal to the current loading threshold, dividing the loading process of the fuel cell engine into three stages, and adjusting current loading rates in the three stages to be a second loading rate, a third loading rate and a fourth loading rate in sequence, wherein the second loading rate and the fourth loading rate are smaller than the third loading rate.
3. The loading method of a fuel cell engine according to claim 2, wherein the three stages include a first stage, a second stage, and a third stage in this order;
the loading method of the fuel cell engine further comprises the following steps:
loading the current of the fuel cell motor from the present current to a first current during the first phase;
loading the current of the fuel cell motor from the first current to a second current in the second phase;
loading the current of the fuel cell motor from the second current to the target demand current in the third phase;
the difference value between the first current and the current is smaller than the difference value between the second current and the first current, and the difference value between the target required current and the second current is smaller than the difference value between the second current and the first current.
4. The loading method of the fuel cell engine according to claim 2, characterized by further comprising:
and in the loading process of the three stages of the fuel cell engine, acquiring an average single voltage drop value of the fuel cell after each stage is loaded, and adjusting the current loading rate of the fuel cell engine in the current stage and all subsequent stages according to the average single voltage drop value.
5. The loading method of the fuel cell engine according to claim 4, wherein adjusting the current loading rate of the fuel cell engine in the present stage and in all the subsequent stages according to the average cell voltage drop value includes:
if the average single voltage drop value is larger than or equal to a preset threshold value after the loading of the current stage is finished, adjusting the current loading rate of the fuel cell engine in the current stage and all subsequent stages, wherein the adjusted current loading rate is smaller than the original current loading rate of the corresponding stage;
and if the average single voltage drop value is smaller than the preset threshold value after the loading of the current stage is finished, adjusting the current loading rate of the fuel cell engine in the current stage and all subsequent stages to be kept as the original current loading rate.
6. The loading method of the fuel cell engine according to claim 5, wherein the three stages include a first stage, a second stage, and a third stage in this order;
and if the average single voltage drop value is greater than or equal to a preset threshold value after the loading of the current stage is finished, adjusting the current loading rate of the fuel cell engine in the current stage and all subsequent stages, wherein the current loading rate comprises the following steps:
when loading is completed in the first stage and the average single voltage drop value is judged to be greater than or equal to a first preset threshold value, the current loading rates of the fuel cell engine in the first stage, the second stage and the third stage are sequentially adjusted to be a fifth loading rate, a sixth loading rate and a seventh loading rate, wherein the ratio of the fifth loading rate to the second loading rate, the ratio of the sixth loading rate to the third loading rate and the ratio of the seventh loading rate to the fourth loading rate are the same, and the ratio is smaller than 1;
when the load is completed in the second stage and the average single voltage drop value is larger than or equal to a second preset threshold value, the current load rate of the fuel cell engine in the second stage and the third stage is adjusted to be an eighth load rate and a ninth load rate in sequence, wherein the ratio of the eighth load rate to the sixth load rate and the ratio of the ninth load rate to the seventh load rate are the same, the ratio is smaller than 1, and the eighth load rate is larger than the second load rate and the fifth load rate;
and carrying out loading in the third stage, and when loading is completed in the third stage and the average single voltage drop value is larger than or equal to a third preset threshold value, adjusting the current loading rate of the fuel cell engine in the third stage to be tenth loading rate, wherein the ratio of the tenth loading rate to the ninth loading rate is smaller than 1.
7. The loading method of a fuel cell engine according to claim 1, characterized by further comprising:
and controlling the air flow change rate to be greater than or equal to the current loading rate in the process of loading the current of the fuel cell engine to the target required current.
8. A loading device of a fuel cell engine, characterized by comprising:
the data acquisition module is used for acquiring target required current;
and the current loading rate adjusting module is used for comparing the target required current with a current loading threshold value, and adjusting the current loading rate of the fuel cell engine according to a comparison result so as to load the current of the fuel cell engine to the target required current, wherein the current loading threshold value is the maximum limit value of the current loading current of the fuel cell engine.
9. A vehicle, characterized by comprising:
one or more processors;
a storage device having one or more programs stored thereon,
when executed by the one or more processors, causes the one or more processors to implement the loading method of the fuel cell engine of any one of claims 1-7.
10. A computer-readable medium, characterized in that a computer program is stored thereon, wherein the program, when executed by a processor, implements a loading method of a fuel cell engine according to any one of claims 1-7.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202311265936.2A CN117284161A (en) | 2023-09-27 | 2023-09-27 | Loading method and device for fuel cell engine, vehicle and storage medium |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202311265936.2A CN117284161A (en) | 2023-09-27 | 2023-09-27 | Loading method and device for fuel cell engine, vehicle and storage medium |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN117284161A true CN117284161A (en) | 2023-12-26 |
Family
ID=89251484
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202311265936.2A Pending CN117284161A (en) | 2023-09-27 | 2023-09-27 | Loading method and device for fuel cell engine, vehicle and storage medium |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN117284161A (en) |
-
2023
- 2023-09-27 CN CN202311265936.2A patent/CN117284161A/en active Pending
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN111885618B (en) | Network performance optimization method and device | |
| CN111581039B (en) | System performance testing method, device, equipment and storage medium | |
| US20230083817A1 (en) | Electric off-road vehicle charging control method, computer device and storage medium | |
| CN112260352A (en) | Charging control method, device, apparatus, terminal and readable storage medium | |
| CN117284161A (en) | Loading method and device for fuel cell engine, vehicle and storage medium | |
| CN117334969B (en) | Fuel cell working parameter control method, electric equipment and electronic equipment | |
| CN112332493B (en) | Lithium battery charging current determination method, device, equipment and storage medium | |
| CN115021301B (en) | Energy storage system charge and discharge control method, device, equipment and storage medium | |
| CN116243195A (en) | Battery module service life determining method, device, equipment and storage medium | |
| CN115207421A (en) | Energy supply method and device for battery system, electronic equipment and storage medium | |
| CN114551943A (en) | Air quantity control method and system for fuel cell system | |
| CN113530651B (en) | Gasoline engine catalyst converter window testing method, electronic equipment and readable storage medium | |
| CN114353288A (en) | Air conditioner, method of controlling the same, and computer-readable storage medium | |
| CN114238856A (en) | Method, device and equipment for solving future prediction error of wind and light resources and storage medium | |
| CN115991123B (en) | Power load state identification method, system, equipment and medium | |
| CN109539498B (en) | Air conditioner compressor control method and system | |
| CN112161390A (en) | Electronic expansion valve control method and device and air conditioner | |
| CN116780534B (en) | Virtual power plant load management method, device, equipment and storage medium | |
| CN117347940B (en) | Calibration method, device, equipment and storage medium for battery charging and discharging equipment | |
| CN112078567B (en) | Power system switching method, device, equipment and storage medium | |
| CN117539519B (en) | Program batch upgrading method for charging piles | |
| CN116520015B (en) | Moon average power factor early warning method and system | |
| CN114771350A (en) | Temperature adjusting method, device, equipment and readable storage medium | |
| CN116106760A (en) | Battery step charging test method and device and electronic equipment | |
| CN117249621A (en) | Air conditioner compressor frequency control method and device and air conditioner |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination |