CN116231005A - Fuel cell system starting method based on ambient temperature and cooling liquid temperature - Google Patents
Fuel cell system starting method based on ambient temperature and cooling liquid temperature Download PDFInfo
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- 238000000034 method Methods 0.000 title claims abstract description 49
- 239000000110 cooling liquid Substances 0.000 title claims abstract description 41
- 238000010926 purge Methods 0.000 claims abstract description 26
- 239000002826 coolant Substances 0.000 claims description 34
- 238000010438 heat treatment Methods 0.000 claims description 13
- 238000004590 computer program Methods 0.000 claims description 11
- UFHFLCQGNIYNRP-UHFFFAOYSA-N Hydrogen Chemical compound [H][H] UFHFLCQGNIYNRP-UHFFFAOYSA-N 0.000 claims description 8
- 239000001257 hydrogen Substances 0.000 claims description 8
- 229910052739 hydrogen Inorganic materials 0.000 claims description 8
- 238000003860 storage Methods 0.000 claims description 7
- 238000004891 communication Methods 0.000 claims description 2
- 238000010586 diagram Methods 0.000 description 8
- 230000006870 function Effects 0.000 description 4
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- 238000010248 power generation Methods 0.000 description 3
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- QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical compound [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 description 1
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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
- H01M8/043—Processes for controlling fuel cells or fuel cell systems applied during specific periods
- H01M8/04302—Processes for controlling fuel cells or fuel cell systems applied during specific periods applied during start-up
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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
- H01M8/0432—Temperature; Ambient temperature
- H01M8/04358—Temperature; Ambient temperature of the coolant
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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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- 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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Abstract
The invention relates to a fuel cell system starting method based on ambient temperature and cooling liquid temperature, which comprises the following steps: respectively collecting the temperature of the cooling liquid and the ambient temperature; calculating the difference between the temperature of the cooling liquid and the ambient temperature; judging whether the difference value is smaller than a first set temperature, and executing normal-temperature startup when the difference value is smaller than the first set temperature; when the difference value is greater than or equal to a first set temperature, executing the next step; judging whether the ambient temperature is smaller than a second set temperature, and executing quick start when the ambient temperature is larger than or equal to the second set temperature; and executing normal-temperature startup when the ambient temperature is smaller than the second set temperature. According to the technical scheme, the restarting of the fuel cell system after the short shutdown can be identified by comparing the ambient temperature with the temperature of the cooling liquid, so that the fuel cell system is directly started, anode purging and cathode purging performed during the conventional startup of the fuel cell are avoided, the startup time is greatly shortened, and the electric quantity consumption and the purge gas consumption are reduced.
Description
Technical Field
The invention relates to the field of application of fuel cells, in particular to a starting method of a fuel cell system based on ambient temperature and coolant temperature.
Background
A fuel cell is a power generation device that directly converts chemical energy stored in hydrogen fuel and oxidant into electric energy. The hydrogen and oxygen combustion is not involved in the power generation process, so that the method is not limited by the Carnot cycle, and has the advantages of high energy conversion efficiency and environmental friendliness; meanwhile, the fuel cell has the outstanding characteristics of quick start at room temperature, no electrolyte loss, high specific power ratio and the like. Based on the advantages, the fuel cell has wide application prospect as a new generation power generation technology.
The existing fuel cell system starting methods are two, namely a starting method based on the environment temperature below zero, and one is a normal temperature starting method, wherein the environment temperature sensor or the fixed time period is used for identifying the temperature below zero, and when the environment temperature is at the normal temperature, a normal temperature starting program is executed, namely anode purging and cathode purging are carried out for a certain time, and then the starting is completed. And when the ambient temperature is below zero, the self-contained heater is used for heating, the temperature of the cooling liquid is heated to the set temperature, and then the normal-temperature starting-up program is executed.
However, the existing fuel cell system starting method still has the following defects that the existing normal-temperature starting program is a fixed anode purging and cathode purging process, the anode purging time and the cathode purging time are fixed, and even if the fuel cell system is restarted after being turned off briefly, the fixed purging process is still executed, so that the time spent for restarting after being turned off briefly is long, and hydrogen is wasted.
Disclosure of Invention
The invention aims to provide a fuel cell system starting method based on an ambient temperature and a cooling liquid temperature, which is used for solving the problems that in the prior art, a fixed purging process is still executed after a short time of restarting, and further the starting time is long, the electric quantity consumption is high and purging gas is wasted.
The invention provides a fuel cell system starting method based on ambient temperature and coolant temperature, which comprises the following steps:
s1, collecting the temperature of cooling liquid through a first temperature sensor, and collecting the ambient temperature through a second temperature sensor;
s2, calculating a difference value between the temperature of the cooling liquid and the ambient temperature;
s3, judging whether the difference value is smaller than a first set temperature, and executing normal-temperature startup when the difference value is smaller than the first set temperature; when the difference value is greater than or equal to a first set temperature, executing the next step;
s4, judging whether the ambient temperature is smaller than a second set temperature, and executing quick start when the ambient temperature is larger than or equal to the second set temperature; and executing normal-temperature startup when the ambient temperature is smaller than the second set temperature.
As a further embodiment of the present application, when the difference in the step S3 is smaller than the first set temperature, performing normal-temperature startup specifically includes the following steps:
and executing normal-temperature startup when the ambient temperature is greater than or equal to a second set temperature.
As a further embodiment of the present application, when the difference in the step S3 is smaller than the first set temperature, performing normal-temperature startup specifically includes the following steps:
when the difference value is smaller than the first set temperature, judging whether the ambient temperature is smaller than the second set temperature,
when the ambient temperature is less than a second set temperature, performing low-temperature heating;
judging whether the temperature of the cooling liquid is higher than a third set temperature, and executing normal-temperature startup when the temperature of the cooling liquid is higher than the third set temperature.
As a further embodiment of the present application, in step S4, when the ambient temperature is less than the second set temperature, normal-temperature startup is performed, which specifically includes:
and when the ambient temperature is smaller than the second set temperature, further judging whether the temperature of the cooling liquid is larger than the third set temperature, and when the temperature of the cooling liquid is larger than the third set temperature, executing normal-temperature startup.
As a further embodiment of the present application, when the coolant temperature is equal to or less than the third set temperature, low-temperature heating is performed until the coolant temperature is greater than the third set temperature.
As a further embodiment of the present application, the normal-temperature startup specifically includes the following steps:
setting the hydrogen inlet pressure, opening a drain valve, and performing anode purging;
setting the rotating speed of an air compressor, opening a back pressure valve, and carrying out cathode purging;
judging whether the single-chip voltage is greater than 900mV, and loading idle current when the single-chip voltage is greater than 900mV to finish starting.
As a further embodiment of the present application, the fast speed machine comprises the steps of: judging whether the single-chip voltage is greater than 900mV, and loading idle current when the single-chip voltage is greater than 900mV to finish starting.
As a further embodiment of the application, when the monolithic voltage is less than or equal to 900mV and the system waiting time is greater than the first set time, the system performs fault early warning.
A fuel cell system based on the start-up method of the fuel cell system of the ambient temperature and coolant temperature, including coolant temperature sensor, ambient temperature sensor and controller, the said controller is connected with said coolant temperature sensor, ambient temperature sensor signal,
the cooling liquid temperature sensor is used for detecting the temperature of the cooling liquid, and the environment temperature sensor is used for detecting the environment temperature;
the controller causes the fuel cell system to execute a corresponding start-up procedure according to the coolant temperature and the ambient temperature.
A computer readable storage medium having stored thereon a computer program for execution by a processor for implementing a fuel cell system start-up method based on ambient temperature and coolant temperature as described above.
Compared with the prior art, the invention has the beneficial effects that:
according to the technical scheme, whether the fuel cell system is restarted after being temporarily shut down is identified by comparing the ambient temperature with the temperature of the cooling liquid, and if not, a normal-temperature startup process is executed; if so, a quick start-up flow is executed, so that the fuel cell is prevented from executing anode purging and cathode purging, the start-up time is greatly shortened, and the electricity consumption and the purge gas consumption are reduced.
Additional features and advantages of the invention will be set forth in the description which follows, and in part will be obvious from the description, or may be learned by practice of the invention. The objectives and other advantages of the invention may be realized and attained by the structure particularly pointed out in the written description and claims hereof as well as the appended drawings.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions of the prior art, the following description will briefly explain the drawings used in the embodiments or the description of the prior art, and it is obvious that the drawings in the following description are some embodiments of the present invention, and other drawings can be obtained according to these drawings without inventive effort for a person skilled in the art.
FIG. 1 is a flow chart of a method for starting up a fuel cell system based on ambient temperature and coolant temperature according to an embodiment of the present invention;
FIG. 2 is a schematic diagram showing a specific flow chart of a method for starting up a fuel cell system based on an ambient temperature and a coolant temperature according to an embodiment of the present invention;
fig. 3 is a block diagram of a fuel cell system according to an embodiment of the present invention, which is a method for starting up a fuel cell system based on an ambient temperature and a coolant temperature.
Detailed Description
For the purpose of making the objects, technical solutions and advantages of the embodiments of the present invention more apparent, the technical solutions of the embodiments of the present invention will be clearly and completely described below 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, but not all embodiments of the present invention. All other embodiments, which can be made by those skilled in the art based on the embodiments of the invention without making any inventive effort, are intended to be within the scope of the invention.
In the description of the present invention, it should be noted that, directions or positional relationships indicated by terms such as "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", etc., are based on directions or positional relationships shown in the drawings, are merely for convenience of description and simplification of description, and do not indicate or imply that the apparatus or element to be referred to must have a specific direction, be constructed and operated in the specific direction, and thus should not be construed as limiting the present invention; the terms "first," "second," "third," and the like, are used for descriptive purposes only and are not to be construed as indicating or implying relative importance, and furthermore, unless explicitly specified and limited otherwise, the terms "mounted," "connected," "coupled," and the like are to be construed broadly, and may be fixedly coupled, detachably coupled, or integrally coupled, for example; can be mechanically or electrically connected; can be directly connected or indirectly connected through an intermediate medium, and can be communication between two elements. The specific meaning of the above terms in the present invention will be understood in specific cases by those of ordinary skill in the art.
As shown in fig. 1-2, the present invention provides a method for starting up a fuel cell system based on an ambient temperature and a coolant temperature, comprising the steps of:
s1, collecting the temperature of cooling liquid through a first temperature sensor, and collecting the ambient temperature through a second temperature sensor;
s2, calculating a difference value between the temperature of the cooling liquid and the ambient temperature;
s3, judging whether the difference value is smaller than a first set temperature, and executing normal-temperature startup when the difference value is smaller than the first set temperature; when the difference value is greater than or equal to a first set temperature, executing the next step;
s4, judging whether the ambient temperature is smaller than a second set temperature, and executing quick start when the ambient temperature is larger than or equal to the second set temperature; and executing normal-temperature startup when the ambient temperature is smaller than the second set temperature.
Specifically, the ambient temperature is the external ambient temperature of the fuel cell stack, whether the fuel cell is restarted after being temporarily shut down is judged and identified according to the difference between the cooling liquid and the ambient temperature, and a responsive start-up procedure is executed. In the invention, the first set temperature and the second set temperature are set independently according to the requirements of users.
As can be seen from the above-mentioned scheme, the technical scheme of the invention recognizes whether the fuel cell system is restarted after a short shutdown by comparing the ambient temperature with the temperature of the coolant, and if not, executes a normal temperature startup flow; if so, a quick start-up flow is executed, so that the fuel cell is prevented from executing anode purging and cathode purging, the start-up time is greatly shortened, and the electricity consumption and the purge gas consumption are reduced.
Further, in step S3, when the difference between the cooling liquid and the ambient temperature is smaller than the first set temperature, the ambient temperature is further determined, and when the ambient temperature is greater than or equal to the second set temperature, normal-temperature startup is performed; and when the ambient temperature is less than the second set temperature, executing a low-temperature heating process. After the low-temperature heating process is executed, further judging whether the temperature of the cooling liquid is higher than a third set temperature, and executing normal-temperature startup when the temperature of the cooling liquid is higher than the third set temperature; and when the temperature of the cooling liquid is less than or equal to the third set temperature, executing the low-temperature heating process again until the temperature of the cooling liquid is greater than the third set temperature, and executing the normal-temperature starting process, wherein the third set temperature is set independently according to the requirement of a user.
Specifically, the low-temperature heating process includes setting heating power of the PTC heater, heating the coolant by the PTC heater, and flowing the heated coolant into a coolant heat dissipation flow passage of the electric pile to heat the electric pile. Wherein the heating power is generally set to the maximum power of the PTC heater, PTC is an abbreviation of Positive TemperatureCoefficient, meaning a positive temperature coefficient, generally referring to a semiconductor material or component having a very large positive temperature coefficient.
Further, in step S4, when the ambient temperature is less than the second set temperature, it is further determined whether the cooling liquid temperature is greater than the third set temperature, and when the cooling liquid temperature is greater than the third set temperature, normal-temperature startup is performed; and when the temperature of the cooling liquid is less than or equal to the third set temperature, executing the low-temperature heating process again until the temperature of the cooling liquid is greater than the third set temperature, and executing the normal-temperature starting process.
Further, the normal temperature startup procedure includes: setting the entering pressure of hydrogen during anode purging, opening a drain valve, and performing anode purging; then setting the rotating speed during cathode purging, opening a back pressure valve, and performing cathode purging; judging whether the single-chip voltage is greater than 900mV, looking up a table when the single-chip voltage is greater than 900mV, setting the hydrogen pressure, the opening time of the drain valve, the rotating speed of the air compressor and the back pressure valve angle according to the minimum current condition, and loading idle current to finish starting.
Further, the fast start-up procedure includes: and checking a table, setting the hydrogen pressure, the opening time of a drain valve, the rotating speed of an air compressor and the back pressure valve angle according to the minimum current condition, judging whether the single-chip voltage is greater than 900mV, and loading idle current when the single-chip voltage is greater than 900mV to finish starting.
Further, when the voltage of the single chip is less than or equal to 900mV and the waiting time of the system is longer than a set time, the system performs fault early warning. The setting time is set according to the requirement of a user, and the setting time in the normal-temperature starting-up process and the quick starting-up process is set independently, specifically, in different starting-up processes, if the single-chip voltage is still not more than 900mV after exceeding the corresponding setting time, the system is considered to have faults.
As shown in fig. 3, the invention further provides a fuel cell system based on the starting method of the fuel cell system of the ambient temperature and the coolant temperature, which comprises a coolant temperature sensor, an ambient temperature sensor and a controller, wherein the controller is in signal connection with the coolant temperature sensor and the ambient temperature sensor, the coolant temperature sensor is arranged at a cooling liquid inlet of a galvanic pile and is used for detecting the temperature of the coolant, and the ambient temperature sensor is arranged outside the fuel cell galvanic pile system and is used for detecting the ambient temperature; the controller causes the fuel cell system to execute a corresponding start-up procedure according to the coolant temperature and the ambient temperature.
Specifically, the fuel cell system further comprises a radiator, a fuel cell stack and a water pump, wherein the fuel cell stack is respectively connected with the cooling liquid temperature sensor and the water pump, the water pump is connected with the radiator, the radiator is connected with the cooling liquid temperature sensor, the radiator is used for radiating heat, the water pump is used for providing cooling liquid to enter the radiator, and heat radiation is accelerated.
The present invention also provides a computer readable storage medium having a computer program stored therein, characterized in that the computer program is executable by at least one processor to cause the at least one processor to perform the steps of a fuel cell system start-up method based on an ambient temperature and a coolant temperature as described above.
Any reference to memory, storage, database, or other medium used in the present invention may include non-volatile and/or volatile memory. Suitable nonvolatile memory can include Read Only Memory (ROM), programmable ROM (PROM), electrically Programmable ROM (EPROM), electrically Erasable Programmable ROM (EEPROM), or flash memory. Volatile memory can include Random Access Memory (RAM), which acts as external cache memory. By way of illustration and not limitation, RAM is available in a variety of forms such as Static RAM (SRAM), dynamic RAM (DRAM), synchronous DRAM (SDRAM), double Data Rate SDRAM (DDRSDRAM), enhanced SDRAM (ESDRAM), synchronous Link DRAM (SLDRAM), memory bus direct RAM (RDRAM), direct memory bus dynamic RAM (DRDRAM), and memory bus dynamic RAM (RDRAM).
It will be appreciated by those skilled in the art that embodiments of the present invention may be provided as a method, system, or computer program product. Accordingly, the present invention may take the form of an entirely hardware embodiment, an entirely software embodiment or an embodiment combining software and hardware aspects. Furthermore, the present invention may take the form of a computer program product embodied on one or more computer-usable storage media (including, but not limited to, disk storage, CD-ROM, optical storage, and the like) having computer-usable program code embodied therein.
The present invention is described with reference to flowchart illustrations and/or block diagrams of methods, apparatus (systems) and computer program products according to embodiments of the invention. It will be understood that each flow and/or block of the flowchart illustrations and/or block diagrams, and combinations of flows and/or blocks in the flowchart illustrations and/or block diagrams, can be implemented by computer program instructions. These computer program instructions may be provided to a processor of a general purpose computer, special purpose computer, embedded processor, or other programmable data processing apparatus to produce a machine, such that the instructions, which execute via the processor of the computer or other programmable data processing apparatus, create means for implementing the functions specified in the flowchart flow or flows and/or block diagram block or blocks.
These computer program instructions may also be stored in a computer-readable memory that can direct a computer or other programmable data processing apparatus to function in a particular manner, such that the instructions stored in the computer-readable memory produce an article of manufacture including instruction means which implement the function specified in the flowchart flow or flows and/or block diagram block or blocks.
These computer program instructions may also be loaded onto a computer or other programmable data processing apparatus to cause a series of operational steps to be performed on the computer or other programmable apparatus to produce a computer implemented process such that the instructions which execute on the computer or other programmable apparatus provide steps for implementing the functions specified in the flowchart flow or flows and/or block diagram block or blocks.
Although the invention has been described in detail with reference to the foregoing embodiments, it will be understood by those of ordinary skill in the art that: the technical scheme described in the foregoing embodiments can be modified or some technical features thereof can be replaced by equivalents; such modifications and substitutions do not depart from the spirit and scope of the technical solutions of the embodiments of the present invention.
Claims (10)
1. A method for starting up a fuel cell system based on an ambient temperature and a coolant temperature, comprising the steps of:
s1, collecting the temperature of cooling liquid through a first temperature sensor, and collecting the ambient temperature through a second temperature sensor;
s2, calculating a difference value between the temperature of the cooling liquid and the ambient temperature;
s3, judging whether the difference value is smaller than a first set temperature, and executing normal-temperature startup when the difference value is smaller than the first set temperature; when the difference value is greater than or equal to a first set temperature, executing the next step;
s4, judging whether the ambient temperature is smaller than a second set temperature, and executing quick start when the ambient temperature is larger than or equal to the second set temperature; and executing normal-temperature startup when the ambient temperature is smaller than the second set temperature.
2. The method for starting up a fuel cell system according to claim 1, wherein when the difference is smaller than the first set temperature in step S3, performing normal-temperature startup specifically includes the steps of:
and executing normal-temperature startup when the ambient temperature is greater than or equal to a second set temperature.
3. The method for starting up a fuel cell system according to claim 1, wherein when the difference is smaller than the first set temperature in step S3, performing normal-temperature startup specifically includes the steps of:
when the difference value is smaller than the first set temperature, judging whether the ambient temperature is smaller than the second set temperature,
when the ambient temperature is less than a second set temperature, performing low-temperature heating;
judging whether the temperature of the cooling liquid is higher than a third set temperature, and executing normal-temperature startup when the temperature of the cooling liquid is higher than the third set temperature.
4. The method for starting up a fuel cell system according to claim 1, wherein in step S4, when the ambient temperature is less than a second set temperature, normal-temperature startup is performed, and the method specifically comprises:
and when the ambient temperature is smaller than the second set temperature, further judging whether the temperature of the cooling liquid is larger than the third set temperature, and when the temperature of the cooling liquid is larger than the third set temperature, executing normal-temperature startup.
5. A method for starting up a fuel cell system based on an ambient temperature and a coolant temperature according to claim 3 or 4, wherein when the coolant temperature is equal to or lower than a third set temperature, low-temperature heating is performed until the coolant temperature is higher than the third set temperature.
6. The method for starting up a fuel cell system based on an ambient temperature and a coolant temperature according to claim 1, wherein the normal temperature start-up specifically comprises the steps of:
setting the hydrogen inlet pressure, opening a drain valve, and performing anode purging;
setting the rotating speed of an air compressor, opening a back pressure valve, and carrying out cathode purging;
judging whether the single-chip voltage is greater than 900mV, and loading idle current when the single-chip voltage is greater than 900mV to finish starting.
7. A method for starting up a fuel cell system based on ambient temperature and coolant temperature according to claim 1, characterized in that the fast speed engine comprises the steps of: judging whether the single-chip voltage is greater than 900mV, and loading idle current when the single-chip voltage is greater than 900mV to finish starting.
8. The method according to claim 6 or 7, wherein the system performs fault warning when the monolithic voltage is 900mV or less and the system waiting time is longer than a predetermined time.
9. A fuel cell system according to any one of claims 1 to 8, wherein the method comprises a coolant temperature sensor, an ambient temperature sensor, and a controller in signal communication with the coolant temperature sensor and the ambient temperature sensor,
the cooling liquid temperature sensor is used for detecting the temperature of the cooling liquid, and the environment temperature sensor is used for detecting the environment temperature;
the controller causes the fuel cell system to execute a corresponding start-up procedure according to the coolant temperature and the ambient temperature.
10. A computer-readable storage medium, on which a computer program is stored, characterized in that the program is executed by a processor for implementing a method for starting up a fuel cell system based on an ambient temperature and a coolant temperature as claimed in any one of claims 1-8.
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| CN111952641A (en) * | 2020-07-21 | 2020-11-17 | 东风汽车集团有限公司 | Fuel cell automobile purging control method and fuel cell controller |
| KR20220074207A (en) * | 2020-11-27 | 2022-06-03 | 현대자동차주식회사 | Fuel cell start control system and method |
| CN114744240A (en) * | 2022-04-20 | 2022-07-12 | 骆驼集团武汉光谷研发中心有限公司 | Control method and device of fuel cell thermal management system |
| CN114914486A (en) * | 2022-06-01 | 2022-08-16 | 潍柴动力股份有限公司 | Method and device for controlling shutdown purge of fuel cell |
| CN114883606A (en) * | 2022-07-08 | 2022-08-09 | 佛山市清极能源科技有限公司 | Fuel cell system and start purging method thereof |
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