CN114006006B - Fuel cell system air supply control method, device and system and hydrogen energy automobile - Google Patents
Fuel cell system air supply control method, device and system and hydrogen energy automobile Download PDFInfo
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- CN114006006B CN114006006B CN202111041208.4A CN202111041208A CN114006006B CN 114006006 B CN114006006 B CN 114006006B CN 202111041208 A CN202111041208 A CN 202111041208A CN 114006006 B CN114006006 B CN 114006006B
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- 239000000446 fuel Substances 0.000 title claims abstract description 143
- 238000000034 method Methods 0.000 title claims abstract description 25
- UFHFLCQGNIYNRP-UHFFFAOYSA-N Hydrogen Chemical compound [H][H] UFHFLCQGNIYNRP-UHFFFAOYSA-N 0.000 title abstract description 15
- 239000001257 hydrogen Substances 0.000 title abstract description 15
- 229910052739 hydrogen Inorganic materials 0.000 title abstract description 15
- 238000001514 detection method Methods 0.000 claims description 11
- 238000004590 computer program Methods 0.000 claims description 6
- 230000009286 beneficial effect Effects 0.000 abstract description 2
- 239000007789 gas Substances 0.000 description 30
- 238000010248 power generation Methods 0.000 description 2
- 230000008569 process Effects 0.000 description 2
- 230000000630 rising effect Effects 0.000 description 2
- 230000001133 acceleration Effects 0.000 description 1
- QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical compound [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 description 1
- 230000008859 change Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000007599 discharging Methods 0.000 description 1
- 238000003487 electrochemical reaction Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000002474 experimental method Methods 0.000 description 1
- 238000005259 measurement Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 239000001301 oxygen Substances 0.000 description 1
- 229910052760 oxygen Inorganic materials 0.000 description 1
- 238000011084 recovery Methods 0.000 description 1
- 230000004044 response Effects 0.000 description 1
- 238000004904 shortening Methods 0.000 description 1
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 1
Classifications
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
- H01M8/00—Fuel cells; Manufacture thereof
- H01M8/04—Auxiliary arrangements, e.g. for control of pressure or for circulation of fluids
- H01M8/04082—Arrangements for control of reactant parameters, e.g. pressure or concentration
- H01M8/04089—Arrangements for control of reactant parameters, e.g. pressure or concentration of gaseous reactants
-
- 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
- H01M8/04082—Arrangements for control of reactant parameters, e.g. pressure or concentration
- H01M8/04201—Reactant storage and supply, e.g. means for feeding, pipes
-
- 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
- H01M8/04305—Modeling, demonstration models of fuel cells, e.g. for training purposes
-
- 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
- H01M8/04746—Pressure; Flow
- H01M8/04753—Pressure; Flow of fuel cell reactants
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
- H01M2220/00—Batteries for particular applications
- H01M2220/20—Batteries in motive systems, e.g. vehicle, ship, plane
-
- 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
- Y02E60/10—Energy storage using batteries
-
- 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
Abstract
The invention provides a fuel cell system air supply control method, a device, a system and a hydrogen energy automobile, which are used for obtaining the output voltage of a fuel cell; when the output voltage does not reach the preset high-voltage value, judging that the fuel cell system does not start high-voltage output, and controlling the air storage unit to input air to the fuel cell; when the output voltage reaches a preset high-voltage value, judging that the fuel cell system starts high-voltage output, and controlling the air compressor or the air compressor and the air storage unit to simultaneously input air to the fuel cell. The technical scheme provided by the invention has the beneficial effects that: when the fuel cell system does not output high voltage, the air storage unit is utilized to input air to the fuel cell, when the fuel cell starts outputting high voltage, the fuel cell provides high voltage for the air compressor, and when the air compressor is utilized to input air to the fuel cell, the dependence on high voltage power supply of the whole vehicle is relieved when the fuel cell system is lifted, the high voltage power cell of the hydrogen energy vehicle is possible to be completely removed, and the vehicle weight can be greatly reduced and the arrangement space can be saved.
Description
Technical Field
The invention relates to the technical field of hydrogen energy automobiles, in particular to a fuel cell system air supply control method, a device and a system and a hydrogen energy automobile.
Background
The generation of the electric energy of the hydrogen fuel cell requires a certain amount of hydrogen and oxygen to perform electrochemical reaction in the fuel cell, and the current technology is to ensure the flow and pressure requirements of air intake of the fuel cell system by an air compressor for an air path. The operation of the air compressor needs high-voltage direct current, the fuel cell system does not have high-voltage output when being just started, and the air compressor controller is powered by the high-voltage power battery of the whole vehicle at present, so that the hydrogen fuel cell vehicle is required to have a power battery or other auxiliary high-voltage energy sources, the weight of the whole vehicle can be increased due to the arrangement of the high-voltage energy sources, the space in the vehicle is reduced, and meanwhile, the high-voltage power battery has potential safety hazards.
Disclosure of Invention
In view of the above, embodiments of the present invention provide a fuel cell system air supply control method, apparatus, system and hydrogen-powered vehicle.
An embodiment of the present invention provides a fuel cell system air supply control method including the steps of:
s1, obtaining the output voltage of a fuel cell;
s2, when the output voltage does not reach a preset high-voltage value, judging that the fuel cell system does not start high-voltage output, and controlling the gas storage unit to input air to the fuel cell;
and S3, when the output voltage reaches a preset high-voltage value, judging that the fuel cell system starts high-voltage output, and controlling the air compressor or the air compressor and the air storage unit to simultaneously input air to the fuel cell.
Further, after step S3, the method further includes:
s4, acquiring a stack inlet air flow demand, when the stack inlet air flow demand is larger than the current air flow, controlling the air inlet flow opening of an air inlet valve of the fuel cell according to the stack inlet air flow demand, calculating the target rotating speed of the air compressor corresponding to the stack inlet air flow demand, controlling the air compressor to operate at the target rotating speed of the air compressor, and simultaneously controlling the air storage unit to input air to the fuel cell.
Further, after step S3, the method further includes:
s5, acquiring a stack inlet air flow demand, when the stack inlet air flow demand is smaller than the current air flow, controlling the air inlet flow opening of an air inlet valve of the fuel cell according to the stack inlet air flow demand, calculating the target rotating speed of the air compressor corresponding to the stack inlet air flow demand, controlling the air compressor to operate at the target rotating speed of the air compressor, and simultaneously controlling compressed air of the air compressor to be input into the air storage unit.
Further, in step S5, the pressure in the gas storage unit is obtained, and when the pressure in the gas storage unit is greater than a first preset pressure threshold, a safety valve on the gas storage unit is controlled to release pressure.
Further, after step S3, the method further includes:
s6, acquiring the required power of the whole vehicle, and controlling the air compressor to run when the required power of the whole vehicle is smaller than the idle power of the fuel cell system, so that the air compressed by the air compressor is input into the air storage unit.
Further, the pressure in the gas storage unit is obtained, and when the pressure in the gas storage unit is smaller than a second preset pressure threshold value, compressed air of the air compressor is controlled to be input into the gas storage unit.
Further, after a shutdown instruction of the fuel cell system is received, the pressure in the gas storage unit is obtained, and when the pressure in the gas storage unit is smaller than a third preset pressure threshold value, compressed air of the air compressor is controlled to be input into the gas storage unit until the pressure in the gas storage unit reaches the first preset pressure threshold value.
The embodiment of the invention also provides an air supply control device of the fuel cell system, which comprises a memory and a processor;
the memory is used for storing a computer program;
the processor is configured to implement the fuel cell system air supply control method as described above when executing the computer program.
The embodiment of the invention also provides an air supply control system of the fuel cell system, which comprises the air supply control device of the fuel cell system, a voltage detection module, an air compressor, an air storage unit and a reversing unit;
the voltage detection module is used for detecting the output voltage of the fuel cell, the air compressor, the air storage unit and the fuel cell are respectively connected with the reversing device, the reversing device is used for controlling the air compressor, the air storage unit and the fuel cell to be connected or disconnected in pairs, and the air compressor, the voltage detection module and the reversing unit are respectively electrically connected with the air supply control device of the fuel cell system.
Embodiments of the present invention also provide a hydrogen-powered vehicle including the fuel cell system air supply control system as described above.
The technical scheme provided by the embodiment of the invention has the beneficial effects that: the air storage unit is added in the air supply control system and is used for storing compressed air, when the fuel cell system is just started and has no high-voltage output, the air storage unit is used for inputting air into the fuel cell, when the fuel cell is started and starts to output high voltage, the fuel cell provides high-voltage for the air compressor, and the air compressor can be used for inputting air into the fuel cell, so that the dependence on high-voltage power supply of the whole vehicle is relieved when the fuel cell system is lifted, the high-voltage power cell of the hydrogen fuel cell vehicle can be completely removed, and the vehicle weight can be greatly reduced and the arrangement space can be saved.
Drawings
FIG. 1 is a flow chart of an embodiment of a fuel cell system air supply control method according to the present invention;
fig. 2 is a schematic diagram of an embodiment of an air supply control system for a fuel cell system according to the present invention.
In the figure: the air compressor 1, the air storage unit 2, the fuel cell 3, the safety valve 4, the three-way valve 5, the air inlet pipeline 6, the air outlet pipeline 7, the pressure reducing valve 8, the power valve 9, the intercooler 10, the humidifier 11 and the brake air storage tank 12.
Detailed Description
For the purpose of making the objects, technical solutions and advantages of the present invention more apparent, embodiments of the present invention will be further described with reference to the accompanying drawings.
Referring to fig. 1, an embodiment of the present invention provides a fuel cell system air supply control method, including the steps of:
s1, obtaining the output voltage of a fuel cell;
s2, when the output voltage does not reach a preset high-voltage value, judging that the fuel cell system does not start high-voltage output, and controlling the gas storage unit 2 to input air to the fuel cell 3;
and S3, when the output voltage reaches a preset high-voltage value, judging that the fuel cell system starts high-voltage output, and controlling the air compressor 1 or the air compressor 1 and the air storage unit 2 to simultaneously input air to the fuel cell 3.
In order to start the power generation of the fuel cell, a certain amount of air and hydrogen with pressure need to be input into the fuel cell 3, and before the fuel cell 3 starts to react, the high-voltage energy requirements of power consumption components such as a water pump, an air compressor 1 and the like can only be provided by a power battery pack on the vehicle. According to the technical scheme provided by the invention, the air storage unit 2 is added in the air supply control system, the air storage unit 2 is used for storing compressed air, when the fuel cell system is not started up and has no high-voltage output yet, the air storage unit 2 is used for inputting air into the fuel cell 3, when the fuel cell is started up and starts up to output high-voltage, the fuel cell provides high-voltage for the air compressor 1, the air compressor 1 can be used for inputting air into the fuel cell 3, so that the dependence on high-voltage power supply of the whole vehicle is relieved when the fuel cell system is lifted up, the high-voltage power cell of the hydrogen fuel cell vehicle can be completely removed, and the vehicle weight can be greatly reduced and the arrangement space can be saved. As for the energy recovery problem caused by the cancellation of the power battery, the fuel battery 3 can be electrically connected with a low-voltage storage battery, and the storage battery can be a 48V low-voltage storage battery with proper power model to replace a high-voltage power battery, so that the safety risk of the power battery is eliminated.
According to the experimental measurement of 30Kw of fuel cell system, the air quantity requirement in the stacking process is the air inflow with the pipe diameter of 20 mm/volume of 1L/absolute pressure of 2bar, and the primary stacking requirement can be met, so that the air storage unit 2 is adopted to supply air to the fuel cell 3 during stacking.
In step S3, the air compressor 1 inputs air to the fuel cell 3, and the air storage unit 2 may stop inputting air to the fuel cell 3, and then the air compressor 1 may completely input air to the fuel cell 3, or may control the air storage unit 2 to be simultaneously communicated with the fuel cell 3, and the air intake amount required by the operation of the fuel cell 3 is mainly provided by the air compressor 1, where the air storage unit 2 plays an auxiliary role.
After step S3, the method further includes:
s4, acquiring a stack inlet air flow demand, when the stack inlet air flow demand is larger than the current air flow, controlling the air inlet flow opening of an air inlet valve of the fuel cell 3 according to the stack inlet air flow demand, calculating the target rotating speed of the air compressor 1 corresponding to the stack inlet air flow demand, controlling the air compressor 1 to operate at the target rotating speed of the air compressor 1, and simultaneously controlling the air storage unit 2 to input air to the fuel cell 3.
It can be understood that the VCU (vehicle control unit) sets the required power of the fuel cell according to the accelerator and brake depth of the driver, the current electric quantity of the battery pack and the allowable charge and discharge power, so as to ensure that the power meets the driving intention (acceleration or deceleration) of the driver and prevent the battery pack from being overcharged or overdischarged. The VCU sends the required power to the FCU (fuel cell system controller), the FCU sets the air inlet amount and the hydrogen inlet amount according to the required power, the relation between the power and the air inlet amount is the corresponding relation calibrated according to experiments on the fuel cell system rack, and the air inlet amount is in direct proportion to the power output.
The target rotating speed of the air compressor 1 is larger than the current rotating speed, and because the time for the rising of the rotating speed of the air compressor 1 is required, in the process of rising of the rotating speed of the air compressor 1, an air inlet flow gap of the fuel cell 3 is passively provided by the air storage unit 2 so as to rapidly meet the air flow requirement of the fuel cell 3.
S5, acquiring a stack inlet air flow demand, when the stack inlet air flow demand is smaller than the current air flow, controlling the air inlet flow opening of an air inlet valve of the fuel cell 3 according to the stack inlet air flow demand, calculating the target rotating speed of the air compressor 1 corresponding to the stack inlet air flow demand, controlling the air compressor 1 to operate at the target rotating speed of the air compressor 1, and simultaneously controlling compressed air of the air compressor 1 to be input into the air storage unit 2.
The air compressor 1 adjusts the supply quantity of the compressed air through the change of the rotating speed, the response time is required, the target rotating speed of the air compressor 1 is smaller than the current rotating speed, the generated redundant air flow is passively received by the air storage unit 2, and the redundant air is prevented from entering the fuel cell 3, so that the air flow requirement of the fuel cell 3 is rapidly met. The air storage unit 2 is communicated with the air compressor 1 and the fuel cell 3, so that a gap of the air supply of the air compressor 1 can be made up, surplus of the air supply of the air compressor 1 is absorbed, the accuracy of the air inlet amount is ensured, and the power generation efficiency of the fuel cell is improved.
In step S5, the pressure in the gas storage unit 2 is obtained, and when the pressure in the gas storage unit 2 is greater than a first preset pressure threshold, the safety valve 4 on the gas storage unit 2 is controlled to release pressure, so that the safety of the gas storage unit 2 is ensured. The first preset pressure threshold is a relief threshold of a safety valve 4 on the gas storage unit 2, and is determined by valve body hardware.
Further, after step S3, the method further includes:
s6, acquiring the required power of the whole vehicle, controlling the air compressor 1 to operate when the required power of the whole vehicle is smaller than the idle power of the fuel cell system, inputting air compressed by the air compressor 1 into the air storage unit 2, and controlling the safety valve 4 on the air storage unit 2 to release pressure when the pressure in the air storage unit 2 is larger than a first preset pressure threshold value.
Idle power of a fuel cell system, i.e., the lowest output power of the fuel cell system when the fuel cell system is operating stably. When the power required by the whole vehicle is smaller than the idle power of the fuel cell system, the power can only be selected to be shut down, or the redundant power can be consumed through the internal air compressor 1, the fan and the like. The frequent start-up and shut-down are main factors for shortening the service life of the fuel cell, the invention inputs compressed air into the air storage unit 2 through the air compressor 1, surplus power of the fuel cell system is consumed by the air compressor 1, the air compressor 1 inputs air into the air storage unit 2 to store surplus energy, and when the air storage unit 2 reaches a certain pressure, the safety valve 4 of the air storage unit 2 automatically releases pressure, thereby reducing the start-up and shut-down times to a certain extent and improving the energy utilization rate.
Further, when the fuel cell system is operating normally, the pressure in the air storage unit 2 is obtained, and when the pressure in the air storage unit 2 is smaller than a second preset pressure threshold, the compressed air of the air compressor 1 is controlled to be input into the air storage unit 2.
When a shutdown instruction of the fuel cell system is received, the pressure in the gas storage unit 2 is obtained, and when the pressure in the gas storage unit 2 is smaller than a third preset pressure threshold value, compressed air of the air compressor 1 is controlled to be input into the gas storage unit 2 until the pressure in the gas storage unit 2 reaches the first preset pressure threshold value, so that the gas storage unit 2 supplies gas to the fuel cell 3 when the fuel cell system is started next time.
And after receiving an instruction that the whole vehicle is in fault and needs emergency shutdown, controlling the fuel cell system to shut down. When the fuel cell system is normally shut down, the pressure of the air storage unit 2 needs to be judged, and when the air pressure is insufficient, the fuel cell system is shut down after full air is filled; when the whole vehicle is in failure or the fuel cell system is in failure and needs emergency shutdown, the pressure of the gas storage unit 2 is not required to be judged, and the shutdown is directly carried out.
The embodiment of the invention also provides an air supply control device of the fuel cell system, which comprises a memory and a processor; the memory is used for storing a computer program; the processor is configured to implement the fuel cell system air supply control method as described above when executing the computer program.
The embodiment of the invention also provides an air supply control system of a fuel cell system, referring to fig. 2, the system comprises the air supply control device of the fuel cell system, a voltage detection module, an air compressor 1, an air storage unit 2 and a reversing unit, wherein the voltage detection module is used for detecting the output voltage of the fuel cell 3, the air compressor 1, the air storage unit 2 and the fuel cell 3 are respectively connected with the reversing device, and the reversing device is used for controlling the air compressor 1, the air storage unit 2 and the fuel cell 3 to be communicated with each other or disconnected from each other.
The air storage unit 2 is provided with a pressure detection device, the pressure detection device is used for detecting the air pressure in the air storage unit 2, the air storage unit 2 is connected with a safety valve 4 for discharging air, and the air compressor 1, the voltage detection module, the safety valve 4 and the reversing unit are respectively and electrically connected with an air supply control device of the fuel cell system.
The reversing unit can be formed by combining a plurality of stop valves, in the embodiment, the reversing unit is two three-way valves 5, the air compressor 1, the two three-way valves 5 and the fuel cell 3 are sequentially connected, the air storage unit 2 and the two three-way valves 5 are respectively connected through an air inlet pipeline 6 and an air outlet pipeline 7, a pressure reducing valve 8 and a power valve 9 are connected on the air outlet pipeline 7, the power valve 9 is connected between the fuel cell 3 and the three-way valves 5, the air inflow of the fuel cell 3 and the air outflow of the air storage unit 2 can be respectively controlled by adjusting the opening of the two power valves 9, an intercooler 10 and a humidifier 11 are connected between the power valve 9 and the fuel cell 3, and the pressure reducing valve 8 and the power valve 9 are respectively electrically connected with an air supply control device of the fuel cell system. By controlling the opening and closing of the interfaces of the two three-way valves 5, the air compressor 1, the air storage unit 2 and the fuel cell 3 can be connected or disconnected in pairs.
For a vehicle with a pneumatic brake system, the gas storage unit 2 is communicated with the brake gas storage tank 12, and can be directly or indirectly communicated, and a power valve 9 and a pressure reducing valve 8 are arranged on a connecting pipeline between the gas storage unit 2 and the brake gas storage tank 12, so that more gas storage space and gas storage quantity can be provided; the brake air tank 12 may be directly used as the air storage unit 2, and is not particularly limited herein.
The air supply control system of the fuel cell system can be used as an emergency pile-up air supply scheme without external high-pressure supply, and is not only suitable for hydrogen fuel cell vehicles with high-pressure auxiliary energy sources such as power cells and the like, but also suitable for hydrogen fuel cell vehicles without high-pressure auxiliary energy sources.
The embodiments described above and features of the embodiments herein may be combined with each other without conflict.
The foregoing description of the preferred embodiments of the invention is not intended to limit the invention to the precise form disclosed, and any such modifications, equivalents, and alternatives falling within the spirit and scope of the invention are intended to be included within the scope of the invention.
Claims (8)
1. A fuel cell system air supply control method characterized by comprising the steps of:
s1, obtaining the output voltage of a fuel cell;
s2, when the output voltage does not reach a preset high-voltage value, judging that the fuel cell system does not start high-voltage output, and controlling the gas storage unit to input air to the fuel cell;
s3, when the output voltage reaches a preset high-voltage value, judging that the fuel cell system starts high-voltage output, and controlling an air compressor or the air compressor and the air storage unit to simultaneously input air to the fuel cell;
after step S3, the method further includes:
s4, acquiring a stack inlet air flow demand, controlling the air inlet flow opening of an air inlet valve of the fuel cell according to the stack inlet air flow demand when the stack inlet air flow demand is larger than the current air flow, calculating the target rotating speed of the air compressor corresponding to the stack inlet air flow demand, controlling the air compressor to operate at the target rotating speed of the air compressor, and simultaneously controlling the air storage unit to input air to the fuel cell;
after step S3, the method further includes:
s5, acquiring a stack inlet air flow demand, when the stack inlet air flow demand is smaller than the current air flow, controlling the air inlet flow opening of an air inlet valve of the fuel cell according to the stack inlet air flow demand, calculating the target rotating speed of the air compressor corresponding to the stack inlet air flow demand, controlling the air compressor to operate at the target rotating speed of the air compressor, and simultaneously controlling compressed air of the air compressor to be input into the air storage unit.
2. The method for controlling air supply to a fuel cell system according to claim 1, wherein in step S5, the pressure in the air storage unit is obtained, and when the pressure in the air storage unit is greater than a first preset pressure threshold, a relief valve on the air storage unit is controlled to release pressure.
3. The fuel cell system air supply control method according to claim 1, characterized by further comprising, after step S3:
s6, acquiring the required power of the whole vehicle, and controlling the air compressor to run when the required power of the whole vehicle is smaller than the idle power of the fuel cell system, so that the air compressed by the air compressor is input into the air storage unit.
4. The fuel cell system air supply control method according to claim 1, wherein the pressure in the air storage unit is obtained, and when the pressure in the air storage unit is smaller than a second preset pressure threshold value, compressed air of the air compressor is controlled to be input into the air storage unit.
5. The fuel cell system air supply control method according to claim 1, wherein the pressure in the air storage unit is obtained after a shutdown instruction of the fuel cell system is received, and when the pressure in the air storage unit is smaller than a third preset pressure threshold value, compressed air of the air compressor is controlled to be input into the air storage unit until the pressure in the air storage unit reaches the first preset pressure threshold value.
6. An air supply control device of a fuel cell system, characterized by comprising a memory and a processor;
the memory is used for storing a computer program;
the processor is configured to implement the fuel cell system air supply control method according to any one of claims 1 to 5 when executing the computer program.
7. A fuel cell system air supply control system, characterized in that the system comprises the fuel cell system air supply control device according to claim 6, a voltage detection module, an air compressor, an air storage unit, and a reversing unit;
the voltage detection module is used for detecting the output voltage of the fuel cell, the air compressor, the air storage unit and the fuel cell are respectively connected with the reversing device, the reversing device is used for controlling the air compressor, the air storage unit and the fuel cell to be connected or disconnected in pairs, and the air compressor, the voltage detection module and the reversing unit are respectively electrically connected with the air supply control device of the fuel cell system.
8. A hydrogen-powered vehicle comprising the fuel cell system air supply control system according to claim 7.
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| CN202111041208.4A CN114006006B (en) | 2021-09-07 | 2021-09-07 | Fuel cell system air supply control method, device and system and hydrogen energy automobile |
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| CN202111041208.4A CN114006006B (en) | 2021-09-07 | 2021-09-07 | Fuel cell system air supply control method, device and system and hydrogen energy automobile |
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| CN114006006B true CN114006006B (en) | 2024-04-12 |
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Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2010020923A (en) * | 2008-07-08 | 2010-01-28 | Toyota Motor Corp | Fuel cell system |
| CN111048804A (en) * | 2019-12-30 | 2020-04-21 | 东风汽车集团有限公司 | Oxygen supply method, oxygen supply system and control system for hydrogen fuel cell |
| CN111114342A (en) * | 2019-11-29 | 2020-05-08 | 武汉格罗夫氢能汽车有限公司 | Idle speed control method for hydrogen energy logistics vehicle |
| CN111342083A (en) * | 2020-03-07 | 2020-06-26 | 武汉格罗夫氢能汽车有限公司 | Hydrogen fuel cell automobile oxygen supply system and control method thereof |
| CN111430751A (en) * | 2020-04-04 | 2020-07-17 | 东风汽车集团有限公司 | Idle oxygen supply control method and system of fuel cell system |
| CN111942233A (en) * | 2020-05-28 | 2020-11-17 | 武汉格罗夫氢能汽车有限公司 | Hydrogen fuel cell logistics vehicle stack idling control method |
Family Cites Families (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP4545285B2 (en) * | 2000-06-12 | 2010-09-15 | 本田技研工業株式会社 | Fuel cell vehicle start control device |
| KR101795137B1 (en) * | 2015-06-03 | 2017-11-08 | 현대자동차주식회사 | Apparatus and method for controlling air supply into fuelcell stack |
-
2021
- 2021-09-07 CN CN202111041208.4A patent/CN114006006B/en active Active
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2010020923A (en) * | 2008-07-08 | 2010-01-28 | Toyota Motor Corp | Fuel cell system |
| CN111114342A (en) * | 2019-11-29 | 2020-05-08 | 武汉格罗夫氢能汽车有限公司 | Idle speed control method for hydrogen energy logistics vehicle |
| CN111048804A (en) * | 2019-12-30 | 2020-04-21 | 东风汽车集团有限公司 | Oxygen supply method, oxygen supply system and control system for hydrogen fuel cell |
| CN111342083A (en) * | 2020-03-07 | 2020-06-26 | 武汉格罗夫氢能汽车有限公司 | Hydrogen fuel cell automobile oxygen supply system and control method thereof |
| CN111430751A (en) * | 2020-04-04 | 2020-07-17 | 东风汽车集团有限公司 | Idle oxygen supply control method and system of fuel cell system |
| CN111942233A (en) * | 2020-05-28 | 2020-11-17 | 武汉格罗夫氢能汽车有限公司 | Hydrogen fuel cell logistics vehicle stack idling control method |
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