CN112253437A - Water pump rotating speed control method and system for hydrogen energy automobile fuel cell system - Google Patents
Water pump rotating speed control method and system for hydrogen energy automobile fuel cell system Download PDFInfo
- Publication number
- CN112253437A CN112253437A CN202010941770.1A CN202010941770A CN112253437A CN 112253437 A CN112253437 A CN 112253437A CN 202010941770 A CN202010941770 A CN 202010941770A CN 112253437 A CN112253437 A CN 112253437A
- Authority
- CN
- China
- Prior art keywords
- water pump
- temperature
- fuel cell
- cell system
- water
- 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.)
- Granted
Links
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 title claims abstract description 182
- 239000000446 fuel Substances 0.000 title claims abstract description 84
- 238000000034 method Methods 0.000 title claims abstract description 31
- UFHFLCQGNIYNRP-UHFFFAOYSA-N Hydrogen Chemical compound [H][H] UFHFLCQGNIYNRP-UHFFFAOYSA-N 0.000 title claims abstract description 18
- 229910052739 hydrogen Inorganic materials 0.000 title claims abstract description 18
- 239000001257 hydrogen Substances 0.000 title claims abstract description 18
- 238000012544 monitoring process Methods 0.000 claims abstract description 7
- 230000008569 process Effects 0.000 claims abstract description 7
- 230000010485 coping Effects 0.000 claims description 3
- 238000001816 cooling Methods 0.000 abstract description 4
- 230000004044 response Effects 0.000 abstract description 4
- 238000011217 control strategy Methods 0.000 abstract description 3
- 230000008901 benefit Effects 0.000 description 2
- 238000006243 chemical reaction Methods 0.000 description 2
- 238000005260 corrosion Methods 0.000 description 2
- 230000007797 corrosion Effects 0.000 description 2
- 230000017525 heat dissipation Effects 0.000 description 2
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 description 1
- 230000004913 activation Effects 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 229910052799 carbon Inorganic materials 0.000 description 1
- 239000000110 cooling liquid Substances 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 230000005611 electricity Effects 0.000 description 1
- 238000005868 electrolysis reaction Methods 0.000 description 1
- 238000005265 energy consumption Methods 0.000 description 1
- 238000010438 heat treatment Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 230000033764 rhythmic process Effects 0.000 description 1
- 230000000630 rising effect Effects 0.000 description 1
- 238000007086 side reaction Methods 0.000 description 1
- 230000001360 synchronised effect Effects 0.000 description 1
Images
Classifications
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
- F04B—POSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS
- F04B49/00—Control, e.g. of pump delivery, or pump pressure of, or safety measures for, machines, pumps, or pumping installations, not otherwise provided for, or of interest apart from, groups F04B1/00 - F04B47/00
- F04B49/06—Control using electricity
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
- F04B—POSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS
- F04B51/00—Testing machines, pumps, or pumping installations
-
- 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
- H01M8/04007—Auxiliary arrangements, e.g. for control of pressure or for circulation of fluids related to heat exchange
- H01M8/04029—Heat exchange using liquids
-
- 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
-
- 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
-
- 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
-
- 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
- H01M8/04925—Power, energy, capacity or load
- H01M8/0494—Power, energy, capacity or load of fuel cell stacks
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
- H01M2250/00—Fuel cells for particular applications; Specific features of fuel cell system
- H01M2250/20—Fuel cells in motive systems, e.g. vehicle, ship, plane
-
- 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)
- Chemical Kinetics & Catalysis (AREA)
- Manufacturing & Machinery (AREA)
- Sustainable Development (AREA)
- Sustainable Energy (AREA)
- Chemical & Material Sciences (AREA)
- Life Sciences & Earth Sciences (AREA)
- Electrochemistry (AREA)
- General Chemical & Material Sciences (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Fuel Cell (AREA)
- Electric Propulsion And Braking For Vehicles (AREA)
Abstract
The invention relates to a water pump rotating speed control method of a hydrogen energy automobile fuel cell system, which comprises the following steps: s1, starting the fuel cell system to work, wherein the water pump in the fuel cell system operates at the lowest working speed; s2, monitoring the effluent temperature of a galvanic pile in the fuel cell system in real time, if the effluent temperature does not exceed T1, operating the water pump in a first temperature interval mode, otherwise, operating the water pump in a second temperature interval mode; if the shutdown command is received, the process is ended, otherwise, step S2 is repeated. This patent adopts the pump control strategy of temperature subregion, improves cooling system response speed on the one hand, and on the other hand practices thrift the water pump consumption when the low temperature.
Description
Technical Field
The invention relates to the technical field of water pump control, in particular to a method and a system for controlling the rotating speed of a water pump of a fuel cell system of a hydrogen energy automobile.
Background
When the working temperature of the fuel cell is lower, the activation voltage is higher, so that the output voltage is lower, and the power is reduced under the same current. Meanwhile, when the temperature is low, the water brought out by the exhaust becomes less, and the flooding phenomenon can be caused. Therefore, when the temperature of the fuel cell is low, the output power of the fuel cell needs to be limited to reduce the generated water and avoid flooding.
At low temperatures, the load cannot be directly increased because the fuel cell has a slow reaction rate and can generate less electricity, and the load is suddenly forced to increase, so that the fuel cell can generate side reactions such as water electrolysis and carbon corrosion in sequence when the load cannot be satisfied.
When the fuel cell works, the temperature inside the galvanic pile is required to be uniform so as to ensure that the reaction inside the galvanic pile is uniformly carried out, thus having great benefits of reducing the internal corrosion of the fuel cell and prolonging the service life of the fuel cell. The temperature difference of cooling liquid at the inlet and the outlet of a fuel cell system is generally required to be less than or equal to 10 ℃, and some cell stack systems are even required to be less than or equal to 5 ℃.
In order to increase the temperature rise rate of the fuel cell system at low temperature, an auxiliary PTC heating method is generally used. In order to reduce the temperature difference of the system at high temperature, a method of controlling the rotation speed of the water pump by using the temperature difference of the inlet and the outlet is generally adopted. For example, when the temperature difference between the inlet and the outlet is large, the rotating speed of the water pump is high.
Disclosure of Invention
The invention provides a method and a system for controlling the rotating speed of a water pump of a hydrogen energy automobile fuel cell system, which solve the technical problem that the internal temperature of a galvanic pile cannot be well kept uniform in the prior art.
The invention provides a method and a system for controlling the rotating speed of a water pump of a fuel cell system of a hydrogen energy automobile to solve the technical problem, and the method comprises the following steps:
s1, starting the fuel cell system to work, wherein the water pump in the fuel cell system operates at the lowest working speed;
s2, monitoring the effluent temperature of a galvanic pile in the fuel cell system in real time, if the effluent temperature does not exceed T1, operating the water pump in a first temperature interval mode, otherwise, operating the water pump in a second temperature interval mode; if the shutdown command is received, the process is ended, otherwise, step S2 is repeated.
Further, in the method for controlling the water pump rotation speed of the fuel cell system of the hydrogen energy automobile, in step S2, the rotation speed of the water pump is not lower than the lowest working rotation speed.
Further, in the method for controlling the water pump rotation speed of the fuel cell system of the hydrogen-powered vehicle according to the present invention, the maximum allowable temperature of the fuel cell system in step S2 is Tmax, and if the effluent temperature exceeds Tmax, the following steps are taken:
s21, if the water outlet temperature exceeds the Tmax and is within the early warning temperature T2, the step S22 is carried out, and if not, the step S23 is carried out;
s22, reducing the output power of the fuel cell system to half, and if the outlet water temperature is not reduced after the output power is reduced for a period of time, shutting down the fuel cell system; if the water outlet temperature is reduced to be lower than the Tmax, releasing the limitation on the output power;
and S23, shutting down the fuel cell system.
Further, in the method for controlling the water pump rotation speed of the fuel cell system of the hydrogen energy vehicle, in step S2, the first temperature interval mode specifically includes:
the rotating speed of the water pump and the outlet water temperature are in a linear positive correlation relationship, when the outlet water temperature is T1, the rotating speed of the water pump is n% of the full-speed operation of the water pump, and n is a non-zero preset value.
Further, in the method for controlling the water pump rotation speed of the fuel cell system of the hydrogen energy vehicle, in step S2, the first temperature interval mode specifically includes:
the rotating speed of the water pump and the outlet water temperature are in a step-rising relationship, when the outlet water temperature is T1, the rotating speed of the water pump is n% of the full-speed operation of the water pump, and n is a non-zero preset value.
Further, in the method for controlling the water pump rotation speed of the fuel cell system of the hydrogen energy vehicle, in step S2, the second temperature interval mode specifically includes:
the rotating speed of the water pump is simultaneously influenced by the outlet water temperature and the output power of the fuel cell system, and the specific relational formula is as follows:
when the output power is 0% -20% of the maximum value, the rotating speed of the water pump is n% + (T-T1). a
When the output power is 20% -40% of the maximum value, the rotating speed of the water pump is n 1% +2 (T-T1) × a
When the output power is 40% -60% of the maximum value, the rotating speed of the water pump is n 2% +3 (T-T1) × a
When the output power is 60% -80% of the maximum value, the rotating speed of the water pump is n 3% + (T-T1) a
When the output power is greater than 80% of the maximum value, the water pump runs at full speed;
wherein n is a non-zero preset value, n is more than n1, n is more than n2, n is more than n3 and is less than 100, a is 10/3, and the outlet water temperature T is more than the temperature T1.
Further, the invention discloses a water pump rotating speed control system of a hydrogen energy automobile fuel cell system, which comprises the following modules:
the starting module is used for indicating the fuel cell system to start working, and a water pump in the fuel cell system operates at the lowest working rotating speed;
the water pump serving as a module is used for monitoring the water outlet temperature of a galvanic pile in the fuel cell system in real time, if the water outlet temperature does not exceed T1, the water pump operates in a first temperature interval mode, otherwise, the water pump operates in a second temperature interval mode; if a shutdown command is received, the process is ended, otherwise, the water pump is stopped as a module.
Further, according to the water pump rotating speed control system of the hydrogen energy automobile fuel cell system, the working rotating speed of the water pump in the water pump module is not lower than the lowest working rotating speed.
Further, in the system for controlling the water pump rotation speed of the fuel cell system of the hydrogen energy automobile, the maximum allowable temperature of the fuel cell system in the water pump operation module is Tmax, and if the effluent temperature exceeds Tmax, the following corresponding modules are entered:
an excess temperature judgment module, entering a corresponding module if the effluent temperature exceeds Tmax and is within an early warning temperature T2, and entering a shutdown module if the effluent temperature does not exceed Tmax;
the coping module is used for reducing the output power of the fuel cell system to half, and if the outlet water temperature is not reduced after the output power is reduced for a period of time, the fuel cell system is shut down; if the water outlet temperature is reduced to be lower than the Tmax, releasing the limitation on the output power;
a shutdown module to shutdown the fuel cell system.
Further, in the system for controlling the rotating speed of the water pump of the fuel cell system of the hydrogen energy automobile, the first temperature interval mode in the water pump module specifically comprises:
the rotating speed of the water pump and the outlet water temperature are in a linear positive correlation relationship, when the outlet water temperature is T1, the rotating speed of the water pump is n% of the full-speed operation of the water pump, and n is a non-zero preset value.
Compared with the prior art, the invention has the beneficial effects that: the temperature-partitioned water pump control strategy is adopted, T1 is not more than in a low-temperature interval, and the rotating speed of the water pump is in direct proportion to the water outlet temperature of the galvanic pile. In the high-temperature interval, the rotating speed of the water pump is in direct proportion to the output power of the system (meanwhile, temperature control is adopted for correction). When the power is greater than a certain value in the high temperature region, the water pump is operated at full speed. Therefore, on one hand, the response speed of the cooling system is improved, and on the other hand, the power consumption of the water pump is saved at low temperature.
Drawings
The invention will be further described with reference to the accompanying drawings and examples, in which:
FIG. 1 is a flow chart of a method of the present invention;
fig. 2 is a diagram of the working interval of the water pump of the present invention.
Detailed Description
In order to make the objects, technical solutions and advantages of the present invention more apparent, the present invention will be described in further detail with reference to the accompanying drawings and specific embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the invention and are not intended to limit the invention.
Referring to fig. 1 and fig. 2, a method for controlling the rotation speed of a water pump of a fuel cell system of a hydrogen vehicle, the water pump being used for maintaining water circulation in the fuel cell system, includes the following steps:
s1, starting the fuel cell system to work, wherein a water pump in the fuel cell system operates at a preset lowest working speed;
s2, monitoring the outlet water temperature of a galvanic pile in the fuel cell system in real time, if the outlet water temperature does not exceed T1(T is less than or equal to T1), operating the water pump in a first temperature interval mode, otherwise (T is more than T1), operating the water pump in a second temperature interval mode; if the shutdown command is received, ending the process, otherwise, repeating the step S2; t is the leaving water temperature, T1 is the default, and its value can be adjusted according to actual need.
Further, in step S2, the operating speed of the water pump is not lower than the lowest operating speed.
Further, in step S2, the maximum allowable temperature of the fuel cell system is Tmax, which is a preset value, and the value of Tmax can be adjusted according to actual needs, and if the outlet water temperature exceeds Tmax, the following steps are taken:
s21, if the water outlet temperature exceeds the Tmax and is within the early warning temperature T2, the step S22 is carried out, otherwise, the step S23 is carried out, and the T2 is 5 degrees;
s22, reducing the output power of the fuel cell system to half, and if the outlet water temperature is not reduced after the output power is reduced for a period of time, shutting down the fuel cell system; if the water outlet temperature is reduced to be lower than the Tmax, releasing the limitation on the output power;
and S23, shutting down the fuel cell system.
Further, in step S2, the first temperature interval mode specifically includes:
the rotational speed of water pump with go out the relation that the water temperature is linear positive correlation, when it is n% when the water temperature is T1 the rotational speed of water pump is when the water pump runs at full speed, n is 60.
Further, in step S2, the first temperature interval mode may further include:
the rotating speed of the water pump and the outlet water temperature are in a stepped rising relationship, when the outlet water temperature is T1, the rotating speed of the water pump is n% of that of the water pump when the water pump runs at full speed, and n is 60%.
Further, in step S2, the second temperature interval mode specifically includes:
the rotating speed of the water pump is simultaneously influenced by the outlet water temperature and the output power of the fuel cell system, and the specific relational formula is as follows:
when the output power is 0% -20% of the maximum value, the rotating speed of the water pump is n% + (T-T1). a
When the output power is 20% -40% of the maximum value, the rotating speed of the water pump is n 1% +2 (T-T1) × a
When the output power is 40% -60% of the maximum value, the rotating speed of the water pump is n 2% +3 (T-T1) × a
When the output power is 60% -80% of the maximum value, the rotating speed of the water pump is n 3% + (T-T1) a
When the output power is greater than 80% of the maximum value, the water pump runs at full speed;
wherein n is 60, n1 is 70, n2 is 80, n3 is 90, a is 10/3, and the temperature T of the effluent is higher than the temperature T1.
Further, a hydrogen energy automobile fuel cell system water pump rotational speed control system, includes the following module:
the starting module is used for indicating the fuel cell system to start working, and a water pump in the fuel cell system operates at the lowest working rotating speed;
the water pump serving as a module is used for monitoring the water outlet temperature of a galvanic pile in the fuel cell system in real time, if the water outlet temperature does not exceed T1, the water pump operates in a first temperature interval mode, otherwise, the water pump operates in a second temperature interval mode; if a shutdown command is received, the process is ended, otherwise, the water pump is stopped as a module.
Further, the working rotating speed of the water pump in the water pump module is not lower than the lowest working rotating speed.
Further, the maximum allowable temperature of the fuel cell system in the water pump operation module is Tmax, and if the effluent temperature exceeds Tmax, the following corresponding modules are entered:
an excess temperature judgment module, entering a corresponding module if the effluent temperature exceeds the Tmax and is within an early warning temperature T2, otherwise entering a shutdown module, wherein the T2 is 5 degrees;
the coping module is used for reducing the output power of the fuel cell system to half, and if the outlet water temperature is not reduced after the output power is reduced for a period of time, the fuel cell system is shut down; if the water outlet temperature is reduced to be lower than the Tmax, releasing the limitation on the output power;
a shutdown module to shutdown the fuel cell system.
Further, the first temperature interval mode in the water pump module specifically is as follows:
the rotational speed of water pump with go out the relation that the water temperature is linear positive correlation, when it is n% when the water temperature is T1 the rotational speed of water pump is when the water pump runs at full speed, n is 60.
In the second temperature interval, the method for controlling the rotating speed of the water pump by jointly adopting the system output power of the fuel cell and the outlet temperature difference has quicker response than the method for controlling the rotating speed of the water pump by simply adopting the inlet-outlet temperature difference. When the power request is received from the system, the water pump can be accelerated according to the requested power, and the situation that the heat dissipation capacity is increased after the power is increased can be dealt with in advance.
When the temperature is low, namely the first temperature interval, the rotating speed of the water pump is controlled by the temperature, and the rotating speed is synchronous with the rhythm of the low-temperature limit output power of the system, so that the heat dissipation requirement of the system can be met, and meanwhile, the power consumption of the water pump is reduced.
On one hand, the control strategy integrally meets the requirement of the galvanic pile on cooling flow, and simultaneously can reduce energy consumption and improve the response capability of a cooling system.
While the present invention has been described with reference to the embodiments shown in the drawings, the present invention is not limited to the embodiments, which are illustrative and not restrictive, and it will be apparent to those skilled in the art that various changes and modifications can be made therein without departing from the spirit and scope of the invention as defined in the appended claims.
Claims (10)
1. A water pump rotating speed control method of a hydrogen energy automobile fuel cell system is characterized by comprising the following steps:
s1, starting the fuel cell system to work, wherein the water pump in the fuel cell system operates at the lowest working speed;
s2, monitoring the effluent temperature of a galvanic pile in the fuel cell system in real time, if the effluent temperature does not exceed T1, operating the water pump in a first temperature interval mode, otherwise, operating the water pump in a second temperature interval mode; if the shutdown command is received, the process is ended, otherwise, step S2 is repeated.
2. The method as claimed in claim 1, wherein the water pump is not rotated at the lowest operating speed in step S2.
3. The method for controlling the water pump rotation speed of the fuel cell system of the hydrogen-powered automobile according to claim 1, wherein the maximum allowable temperature of the fuel cell system in step S2 is Tmax, and if the effluent water temperature exceeds the Tmax, the following steps are taken:
s21, if the water outlet temperature exceeds the Tmax and is within the early warning temperature T2, the step S22 is carried out, and if not, the step S23 is carried out;
s22, reducing the output power of the fuel cell system to half, and if the outlet water temperature is not reduced after the output power is reduced for a period of time, shutting down the fuel cell system; if the water outlet temperature is reduced to be lower than the Tmax, releasing the limitation on the output power;
and S23, shutting down the fuel cell system.
4. The method for controlling the water pump rotation speed of the fuel cell system of the hydrogen-powered vehicle according to claim 1, wherein the first temperature interval mode in step S2 is specifically as follows:
the rotating speed of the water pump and the outlet water temperature are in a linear positive correlation relationship, when the outlet water temperature is T1, the rotating speed of the water pump is n% of the full-speed operation of the water pump, and n is a non-zero preset value.
5. The method for controlling the water pump rotation speed of the fuel cell system of the hydrogen-powered vehicle according to claim 1, wherein the first temperature interval mode in step S2 is specifically as follows:
the rotating speed of the water pump and the outlet water temperature are in a step-rising relationship, when the outlet water temperature is T1, the rotating speed of the water pump is n% of the full-speed operation of the water pump, and n is a non-zero preset value.
6. The method for controlling the water pump rotation speed of the fuel cell system of the hydrogen-powered vehicle according to claim 1, wherein the second temperature interval mode in step S2 is specifically as follows:
the rotating speed of the water pump is simultaneously influenced by the outlet water temperature and the output power of the fuel cell system, and the specific relational formula is as follows:
when the output power is 0% -20% of the maximum value, the rotating speed of the water pump is n% + (T-T1). a
When the output power is 20% -40% of the maximum value, the rotating speed of the water pump is n 1% +2 (T-T1) × a
When the output power is 40% -60% of the maximum value, the rotating speed of the water pump is n 2% +3 (T-T1) × a
When the output power is 60% -80% of the maximum value, the rotating speed of the water pump is n 3% + (T-T1) a
When the output power is greater than 80% of the maximum value, the water pump runs at full speed;
wherein n is a non-zero preset value, n is more than n1, n is more than n2, n is more than n3 and is less than 100, a is 10/3, and the outlet water temperature T is more than the temperature T1.
7. The utility model provides a hydrogen energy car fuel cell system water pump rotational speed control system which characterized in that includes following module:
the starting module is used for indicating the fuel cell system to start working, and a water pump in the fuel cell system operates at the lowest working rotating speed;
the water pump operation module is used for monitoring the water outlet temperature of a galvanic pile in the fuel cell system in real time, if the water outlet temperature does not exceed T1, the water pump operates in a first temperature interval mode, otherwise, the water pump operates in a second temperature interval mode; if a shutdown command is received, the process is ended, otherwise, the water pump is stopped as a module.
8. The system of claim 7, wherein the water pump of the water pump module is operated at a speed not lower than the lowest speed.
9. The system as claimed in claim 7, wherein the maximum allowable temperature of the fuel cell system in the water pump operation module is Tmax, and if the effluent temperature exceeds Tmax, the following module is entered:
an excess temperature judgment module, entering a corresponding module if the effluent temperature exceeds Tmax and is within an early warning temperature T2, and entering a shutdown module if the effluent temperature does not exceed Tmax;
the coping module is used for reducing the output power of the fuel cell system to half, and if the outlet water temperature is not reduced after the output power is reduced for a period of time, the fuel cell system is shut down; if the water outlet temperature is reduced to be lower than the Tmax, releasing the limitation on the output power;
a shutdown module to shutdown the fuel cell system.
10. The system for controlling the water pump rotation speed of the fuel cell system of the hydrogen-powered vehicle according to claim 7, wherein the first temperature interval mode in the water pump module is specifically:
the rotating speed of the water pump and the outlet water temperature are in a linear positive correlation relationship, when the outlet water temperature is T1, the rotating speed of the water pump is n% of the full-speed operation of the water pump, and n is a non-zero preset value.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010941770.1A CN112253437B (en) | 2020-09-09 | 2020-09-09 | Water pump rotating speed control method and system for hydrogen energy automobile fuel cell system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010941770.1A CN112253437B (en) | 2020-09-09 | 2020-09-09 | Water pump rotating speed control method and system for hydrogen energy automobile fuel cell system |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN112253437A true CN112253437A (en) | 2021-01-22 |
| CN112253437B CN112253437B (en) | 2023-05-09 |
Family
ID=74231662
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202010941770.1A Active CN112253437B (en) | 2020-09-09 | 2020-09-09 | Water pump rotating speed control method and system for hydrogen energy automobile fuel cell system |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN112253437B (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113346107A (en) * | 2021-05-26 | 2021-09-03 | 黄冈格罗夫氢能汽车有限公司 | Water pump control method, equipment and storage medium of hydrogen fuel cell system |
Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101420041A (en) * | 2007-10-26 | 2009-04-29 | 通用汽车环球科技运作公司 | Method for improving fcs reliability after end cell heater failure |
| CN106654449A (en) * | 2016-12-26 | 2017-05-10 | 深圳市沃特玛电池有限公司 | Heat dissipation control system of battery pack |
| CN107645020A (en) * | 2017-07-11 | 2018-01-30 | 深圳市朗能动力技术有限公司 | Electric car heat management control method and system |
| CN108058587A (en) * | 2017-11-09 | 2018-05-22 | 简式国际汽车设计（北京）有限公司 | A kind of control method of cooling system of vehicle |
| CN109273626A (en) * | 2018-08-08 | 2019-01-25 | 中国电力科学研究院有限公司 | A kind of battery case for cooling down to battery |
| CN111370736A (en) * | 2020-02-18 | 2020-07-03 | 武汉海亿新能源科技有限公司 | Large-circulation small-circulation switching control method and device for cooling loop of hydrogen fuel cell system |
| CN211295275U (en) * | 2019-11-28 | 2020-08-18 | 浙江润丰氢发动机有限公司 | Hydrogen engine heat management system adopting double-circulation water pump |
| CN111600052A (en) * | 2020-05-29 | 2020-08-28 | 风氢扬科技(杭州)有限公司 | Method and device for controlling temperature of fuel cell stack |
-
2020
- 2020-09-09 CN CN202010941770.1A patent/CN112253437B/en active Active
Patent Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101420041A (en) * | 2007-10-26 | 2009-04-29 | 通用汽车环球科技运作公司 | Method for improving fcs reliability after end cell heater failure |
| CN106654449A (en) * | 2016-12-26 | 2017-05-10 | 深圳市沃特玛电池有限公司 | Heat dissipation control system of battery pack |
| CN107645020A (en) * | 2017-07-11 | 2018-01-30 | 深圳市朗能动力技术有限公司 | Electric car heat management control method and system |
| CN108058587A (en) * | 2017-11-09 | 2018-05-22 | 简式国际汽车设计（北京）有限公司 | A kind of control method of cooling system of vehicle |
| CN109273626A (en) * | 2018-08-08 | 2019-01-25 | 中国电力科学研究院有限公司 | A kind of battery case for cooling down to battery |
| CN211295275U (en) * | 2019-11-28 | 2020-08-18 | 浙江润丰氢发动机有限公司 | Hydrogen engine heat management system adopting double-circulation water pump |
| CN111370736A (en) * | 2020-02-18 | 2020-07-03 | 武汉海亿新能源科技有限公司 | Large-circulation small-circulation switching control method and device for cooling loop of hydrogen fuel cell system |
| CN111600052A (en) * | 2020-05-29 | 2020-08-28 | 风氢扬科技(杭州)有限公司 | Method and device for controlling temperature of fuel cell stack |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113346107A (en) * | 2021-05-26 | 2021-09-03 | 黄冈格罗夫氢能汽车有限公司 | Water pump control method, equipment and storage medium of hydrogen fuel cell system |
Also Published As
| Publication number | Publication date |
|---|---|
| CN112253437B (en) | 2023-05-09 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| US9583774B2 (en) | Method for cold starting a fuel cell system and fuel cell system of a motor vehicle | |
| CN111600049B (en) | Novel energy output management method of hydrogen engine | |
| KR20160054070A (en) | Method for controlling temperature of fuelcell stack | |
| CN112768732B (en) | Thermal management control method for fuel cell | |
| KR20190060593A (en) | Cod control method and system for fuel cell | |
| CN113140749A (en) | Low-temperature quick start control method and system for fuel cell | |
| KR20200079419A (en) | Fuel cell system | |
| CN114171761B (en) | Quick low-temperature starting method for proton exchange membrane fuel cell | |
| CN112253437A (en) | Water pump rotating speed control method and system for hydrogen energy automobile fuel cell system | |
| US11611095B2 (en) | Fuel cell system | |
| CN113851672A (en) | Control method for fuel cell cooling water system, fuel cell, and storage medium | |
| CN210852115U (en) | SOFC fuel cell cooling system, fuel cell and hybrid vehicle | |
| CN114597445B (en) | Comprehensive thermal management method for hydrogen energy storage system | |
| CN219117572U (en) | Energy-saving quick starting device of water electrolysis hydrogen production system | |
| US20150364776A1 (en) | Fuel cell system and method for controlling the same | |
| CN113972385A (en) | Cooling system driven by fuel cell air tail row and control method thereof | |
| CN114744258B (en) | Air-cooled fuel cell temperature control method based on disturbance observation method | |
| CN113394430B (en) | Adjustable heat dissipation system for hydrogen fuel cell truck and heat dissipation method thereof | |
| CN112701329B (en) | Control method for on-load starting of fuel cell system | |
| CN217444448U (en) | Active fuel cell system | |
| CN114725447B (en) | Method for operating fuel cell system and fuel cell system | |
| CN217306542U (en) | Liquid hydrogen fuel cell cooling system | |
| CN113314743B (en) | Automatic control method for recovering fuel cell operation performance under low temperature condition | |
| CN113394429A (en) | Heat radiation system for parallel hydrogen fuel cell truck | |
| CN114899454A (en) | Active fuel cell system |
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 | ||
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CP03 | Change of name, title or address |
Address after: 430000 Building 1, No. 99, Weilai Third Road, Donghu New Technology Development Zone, Wuhan City, Hubei Province Patentee after: Grove Hydrogen Energy Technology Group Co.,Ltd. Country or region after: China Address before: Room 101, 1 / F, building 13, phase I, industrial incubation base, east of future third road and south of Keji fifth road, Donghu New Technology Development Zone, Wuhan City, Hubei Province Patentee before: WUHAN LUOGEFU HYDROGEN ENERGY AUTOMOBILE Co.,Ltd. Country or region before: China |
|
| CP03 | Change of name, title or address | ||
| PE01 | Entry into force of the registration of the contract for pledge of patent right |
Denomination of invention: A method and system for controlling the water pump speed of a hydrogen powered vehicle fuel cell system Granted publication date: 20230509 Pledgee: Jinan Luneng Kaiyuan Group Co.,Ltd. Pledgor: Grove Hydrogen Energy Technology Group Co.,Ltd. Registration number: Y2024980009137 |
|
| PE01 | Entry into force of the registration of the contract for pledge of patent right |