CN111993857A - Fuel cell humidifying system with passenger cabin humidifying function and control method - Google Patents
Fuel cell humidifying system with passenger cabin humidifying function and control method Download PDFInfo
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- CN111993857A CN111993857A CN202010800951.2A CN202010800951A CN111993857A CN 111993857 A CN111993857 A CN 111993857A CN 202010800951 A CN202010800951 A CN 202010800951A CN 111993857 A CN111993857 A CN 111993857A
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- fuel cell
- passenger compartment
- humidifier
- outlet end
- humidity
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60H—ARRANGEMENTS OF HEATING, COOLING, VENTILATING OR OTHER AIR-TREATING DEVICES SPECIALLY ADAPTED FOR PASSENGER OR GOODS SPACES OF VEHICLES
- B60H1/00—Heating, cooling or ventilating [HVAC] devices
- B60H1/00357—Air-conditioning arrangements specially adapted for particular vehicles
- B60H1/00385—Air-conditioning arrangements specially adapted for particular vehicles for vehicles having an electrical drive, e.g. hybrid or fuel cell
- B60H1/00392—Air-conditioning arrangements specially adapted for particular vehicles for vehicles having an electrical drive, e.g. hybrid or fuel cell for electric vehicles having only electric drive means
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60H—ARRANGEMENTS OF HEATING, COOLING, VENTILATING OR OTHER AIR-TREATING DEVICES SPECIALLY ADAPTED FOR PASSENGER OR GOODS SPACES OF VEHICLES
- B60H1/00—Heating, cooling or ventilating [HVAC] devices
- B60H1/00485—Valves for air-conditioning devices, e.g. thermostatic valves
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60H—ARRANGEMENTS OF HEATING, COOLING, VENTILATING OR OTHER AIR-TREATING DEVICES SPECIALLY ADAPTED FOR PASSENGER OR GOODS SPACES OF VEHICLES
- B60H1/00—Heating, cooling or ventilating [HVAC] devices
- B60H1/00642—Control systems or circuits; Control members or indication devices for heating, cooling or ventilating devices
- B60H1/00735—Control systems or circuits characterised by their input, i.e. by the detection, measurement or calculation of particular conditions, e.g. signal treatment, dynamic models
- B60H1/00785—Control systems or circuits characterised by their input, i.e. by the detection, measurement or calculation of particular conditions, e.g. signal treatment, dynamic models by the detection of humidity or frost
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60H—ARRANGEMENTS OF HEATING, COOLING, VENTILATING OR OTHER AIR-TREATING DEVICES SPECIALLY ADAPTED FOR PASSENGER OR GOODS SPACES OF VEHICLES
- B60H1/00—Heating, cooling or ventilating [HVAC] devices
- B60H1/02—Heating, cooling or ventilating [HVAC] devices the heat being derived from the propulsion plant
- B60H1/14—Heating, cooling or ventilating [HVAC] devices the heat being derived from the propulsion plant otherwise than from cooling liquid of the plant, e.g. heat from the grease oil, the brakes, the transmission unit
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60H—ARRANGEMENTS OF HEATING, COOLING, VENTILATING OR OTHER AIR-TREATING DEVICES SPECIALLY ADAPTED FOR PASSENGER OR GOODS SPACES OF VEHICLES
- B60H3/00—Other air-treating devices
- B60H3/02—Moistening ; Devices influencing humidity levels, i.e. humidity control
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60H—ARRANGEMENTS OF HEATING, COOLING, VENTILATING OR OTHER AIR-TREATING DEVICES SPECIALLY ADAPTED FOR PASSENGER OR GOODS SPACES OF VEHICLES
- B60H3/00—Other air-treating devices
- B60H3/02—Moistening ; Devices influencing humidity levels, i.e. humidity control
- B60H2003/026—Moistening ; Devices influencing humidity levels, i.e. humidity control the devices being located in the passenger compartment
Abstract
The invention relates to the technical field of automobile structures, in particular to a fuel cell humidifying system with a passenger compartment humidifying function and a control method. The device comprises a fuel cell stack and a passenger cabin, wherein a humidifier is arranged on one side of a cathode inlet end of the fuel cell stack; the wet air outlet end of the humidifier is communicated with the cathode inlet end; the cathode outlet end of the fuel cell stack is communicated with the tail gas inlet end of a humidifier, and a communication pipeline is arranged between the humidifier and the passenger cabin; the inlet end of the communicating pipeline is communicated with the wet air outlet end of the humidifier, and the outlet end of the communicating pipeline is communicated with the passenger cabin. The device has the advantages of simple structure, convenient installation and operation, no invasion of the space in the vehicle, no great increase of the cost, water resource saving under the condition of changing the humidity in the passenger cabin by inputting the wet air in the humidifier into the passenger cabin, and great popularization value.
Description
Technical Field
The invention relates to the technical field of automobile structures and control, in particular to a fuel cell humidifying system with a passenger compartment humidifying function and a control method.
Background
With the increasing severity of global environment and energy problems, fuel cell vehicles are considered to be the most promising energy power devices in the future due to their advantages of no pollution, high energy conversion efficiency, wide raw material sources, and the like. The humidifier is used as an important part of the fuel cell system and is responsible for regulating the reaction gas of the fuel cell to be maintained in a proper humidity range so as to ensure the smooth proceeding of the electrochemical reaction.
The membrane humidification system humidifies dry air by utilizing wet and hot tail gas, improves the temperature and humidity of the dry air by transferring heat and mass inside a humidifier, and is only used for the humidity of reaction gas inside a fuel electric system when the wet air of the traditional membrane humidification system completely enters an electric pile at present, mainly focuses on the performance of a fuel cell system, and does not consider the humidity environment of a passenger cabin.
The invention discloses a method for humidifying a passenger compartment, for example, a Chinese invention patent with a patent number of CN201711445107.7 named as 'a humidifier, a vehicle, a fuel cell system and a humidifying system thereof', which introduces a humidifying system of a fuel cell vehicle, and the aim of humidifying is achieved by integrating a water container in the vehicle.
Disclosure of Invention
The present invention is to solve the above mentioned technical problems in the background art, and to provide a fuel cell humidification system with a passenger compartment humidification function and a control method thereof.
The technical scheme of the invention is as follows: a fuel cell humidifying system with a passenger cabin humidifying function comprises a fuel cell stack and a passenger cabin, wherein a humidifier is arranged on one side of a cathode inlet end of the fuel cell stack; the wet air outlet end of the humidifier is communicated with the cathode inlet end; the cathode outlet end of the fuel cell stack is communicated with the tail gas inlet end of the humidifier,
the method is characterized in that: a communication pipeline is arranged between the humidifier and the passenger cabin; the inlet end of the communicating pipeline is communicated with the wet air outlet end of the humidifier, and the outlet end of the communicating pipeline is communicated with the passenger cabin.
A cooler is arranged on the communicating pipeline; and a fan for cooling the wet gas entering the cooler is arranged in the cooler.
And a condensed water discharge pipe for discharging cooling water is further arranged on the cooler.
A solenoid valve is arranged on a communication pipeline between the cooler and the humidifier; the solenoid valve is electrically connected with an ECU of the vehicle.
A humidity sensor for monitoring the humidity in the passenger cabin and a second temperature sensor for monitoring the temperature in the passenger cabin are further arranged in the passenger cabin; the humidity sensor and the second temperature sensor are electrically connected to an ECU of the vehicle.
A second three-way pipe is arranged between the wet air outlet end of the humidifier and the cathode inlet end of the fuel cell stack; the inlet of the second three-way pipe is communicated with the wet air outlet end, the pile humidified air outlet end of the second three-way pipe is communicated with the cathode inlet end, and the passenger cabin humidified air outlet end of the second three-way pipe is communicated with the cooler through a communicating pipeline.
A control valve is arranged between the second three-way pipe and the cathode inlet end of the fuel cell stack; the control valve is electrically connected to an ECU of the vehicle.
An air filter, a flow meter, an air compressor and a intercooler are further sequentially arranged on one side of the dry air inlet end of the humidifier along the air flowing direction; and a back pressure valve is arranged at the tail gas outlet end of the humidifier.
A control method having a fuel cell humidification system, characterized by: and monitoring the humidity in the passenger compartment, and when the humidity in the passenger compartment is lower than a first set limit value a, opening the communication pipeline to enable part of humid air at the humid air outlet end of the humidifier to enter the passenger compartment to humidify the passenger compartment.
Further monitoring the humidity in the passenger cabin, when the humidity in the passenger cabin is greater than a second set limit value b, starting an automobile air conditioner, introducing dry air into the passenger cabin, and adjusting the flow of the wet air entering the passenger cabin until the humidity in the passenger cabin is between a first set limit value a and the second set limit value b; the second set limit b is greater than the first set limit a.
The humidity in the passenger cabin is further monitored, when the humidity in the passenger cabin is larger than a first set limit value a but smaller than a second set limit value b, the automobile air conditioner is not started, and only humid air is introduced into the passenger cabin through a humid air outlet end of the humidifier; the second set limit b is greater than the first set limit a.
Further the first set limit a is 0.3.
Further the second set limit b is 0.8.
The invention has the advantages that: 1. according to the invention, the wet air outlet end of the humidifier of the fuel cell stack is communicated with the passenger cabin, so that the passenger cabin can be humidified through the humidifier, and the humidity in the passenger cabin is changed;
2. the cooler is arranged between the humidifier and the passenger cabin, and the excessive moisture in the humid air is condensed and discharged through the cooler, so that the excessively humid air is prevented from entering the passenger cabin;
3. according to the invention, the environmental parameter sensor is integrated in the passenger cabin and is combined with the ECU, so that the humidity in the passenger cabin can be controlled in a centralized manner, the control mode is simple, and the efficiency is high.
The device has the advantages of simple structure, convenient installation and operation, no invasion of the space in the vehicle, no great increase of the cost, water resource saving under the condition of changing the humidity in the passenger cabin by inputting the wet air in the humidifier into the passenger cabin, and great popularization value.
Drawings
FIG. 1: the invention has a structure schematic diagram;
wherein: 1-fuel cell stack; 2-cathode inlet end; 3-cathode outlet end; 4-an air filter; 5, a flow meter; 6, an air compressor; 7-a first three-way pipe; 8, a pressure relief valve; 9, an intercooler; 10-a humidifier; 11-dry air inlet port; 12-tail gas outlet end; 13-a humid air outlet; 14-tail gas inlet end; 15-back pressure valve; 16-a passenger compartment humidified air outlet end; 17-a stack humidifying air outlet end; 18-a solenoid valve; 19-a cooler; 20-a fan; 21-condensed water discharge pipe; 22-a control valve; 23-passenger compartment; 24, air conditioning; 25-an ECU; 26-a pressure sensor; 27 — a first temperature sensor; 28 — a first flow sensor; 29-a humidity sensor; 30-a second temperature sensor; 31 — a third temperature sensor; 32-a second flow sensor; 33-third tee.
Detailed Description
The invention is described in further detail below with reference to the figures and the specific embodiments.
As shown in fig. 1, a fuel cell humidification system with a passenger compartment humidification function includes a fuel cell stack 1 and a passenger compartment 23, an air filter 4, a flow meter 5, an air compressor 6, a first three-way pipe 7, an intercooler 9, a humidifier 10, a second three-way pipe and a control valve 22 are sequentially disposed on one side of a cathode inlet 2 of the fuel cell stack 1 in the embodiment along a gas flow direction, and the control valve 22 is communicated with the cathode inlet 2 of the fuel cell stack 1. The air compressor 6 is used for providing air required by cathode reaction of the fuel cell stack 1, the air filter 4 filters impurities in the inlet air, the flow meter 5 measures the air flow of the inlet air into the stack, the air compressor 6 provides required compressed dry air for the fuel cell stack 1, the inlet of the first three-way pipe 7 is communicated with the outlet end of the air compressor 6, one outlet end of the first three-way pipe is communicated with the inlet of the intercooler 9, and the other outlet end of the first three-way pipe is provided with a pressure relief valve 8 for adjusting the pressure of the air supplied by the whole air; because the temperature of the compressed dry air is too high, the dry air must be intercooled to improve the air intake efficiency; the outlet of the intercooler 9 is communicated with the dry air inlet end 11 of the humidifier 10, and cooled dry air is introduced into the humidifier 10.
The humidifier 10 is provided with a dry air inlet end 11, a wet air outlet end 13, a tail gas inlet end 14 and a tail gas outlet end 12, the tail gas inlet end 14 is communicated with the cathode outlet end 3, tail gas discharged from the cathode outlet end 3 of the fuel cell stack 1 passes through the tail gas side inside the humidifier 10 and is discharged from the tail gas outlet end 12 of the humidifier 10, damp and hot tail gas is subjected to mass transfer and heat transfer through a hollow fiber tube, moisture and heat are transferred to dry air, and the dry air is discharged from the wet air outlet end 13 of the humidifier 10 after being humidified. The tail gas outlet end 12 of the humidifier 10 is connected to the atmosphere via a back pressure valve 15.
A communication line is provided between the humidifier 10 and the passenger compartment 23, and an inlet end of the communication line is communicated with the humid air outlet end 13 of the humidifier 10, and an outlet end is communicated with the passenger compartment 23. A second three-way pipe is arranged between the wet air outlet end 13 of the humidifier 10 and the cathode inlet end 2 of the fuel cell stack 1, the inlet of the second three-way pipe is communicated with the wet air outlet end 13, the stack humidified air outlet end 17 of the second three-way pipe is communicated with the cathode inlet end 2, and the passenger compartment humidified air outlet end 16 of the second three-way pipe is communicated with the cooler 19 through a communicating pipeline.
A cooler 19 is provided in the communication pipe, and a fan 20 for cooling the wet gas entering the cooler 19 is provided in the cooler 19. The cooler 19 is provided with a condensed water discharge pipe 21 for discharging the cooling water. After the wet air in the humidifier 10 passes through the second three-way pipe, a part of the wet air which is led to the communication pipeline flows into the passenger compartment 23 after being regulated by condensation and the like, so that the environment in the compartment is humidified, and the comfort level of the passenger compartment 23 is improved.
An electromagnetic valve 18 is provided on a communication line between the cooler 19 and the humidifier 10, and the electromagnetic valve 18 is electrically connected to the ECU25 of the vehicle.
An environmental parameter sensor is arranged in the passenger compartment 23, the environmental parameter sensor of the embodiment comprises a humidity sensor 29 and a second temperature sensor 30 which are respectively used for monitoring the humidity and the temperature in the passenger compartment 23, and the humidity sensor 29 and the second temperature sensor 30 are electrically connected with the ECU25 of the vehicle. The ECU25 controls the opening, closing and opening of the electromagnetic valve 18 through a set algorithm by acquiring the environmental parameters of the passenger compartment and the operating condition parameters of the fuel cell vehicle so as to adjust the temperature and humidity in the passenger compartment to reach the most comfortable indexes of passengers.
A control valve 22 is arranged between the second tee pipe and the cathode inlet end 2 of the fuel cell stack 1, and the control valve 22 is electrically connected with an ECU25 of the vehicle. The ECU25 of the present embodiment is also electrically connected to the fan 20, and the ECU25 controls the rotation speed of the fan 20 to cool the high-temperature humid air at the humid air outlet end 13 of the humidifier 10, so as to ensure that the humid air entering the passenger compartment 23 is in a proper temperature range.
In the embodiment, a third tee 33 is arranged between the cooler 19 and the passenger compartment 23, one inlet of the third tee 33 is communicated with the outlet end of the cooler 19, the other inlet is communicated with the air conditioner 24, and the outlet of the third tee 33 is communicated with the passenger compartment 23, wherein a second flow sensor 32 and a third temperature sensor 31 (the second flow sensor 32 and the third temperature sensor 31 are electrically connected with the ECU 25) for monitoring the flow and the temperature of the air at the air outlet of the air conditioner 24 are arranged on a pipeline between the air conditioner 24 and the third tee 33, and the air conditioner 24 supplies dry air to the passenger compartment 23 and mixes the dry air with the wet air supplied by the humidifier 10 to achieve the purpose of adjusting the humidity in the passenger compartment 23.
After the humidifying function of the passenger compartment 23 is started, the ECU25 adjusts the operation condition of the air compressor 6 according to a set algorithm by acquiring the environmental parameters of the passenger compartment 23 and the operation condition parameters of the fuel cell vehicle (acquired by an operation parameter sensor electrically connected with the ECU 25) so as to meet the air intake requirement of the fuel cell stack 1 and improve the power responsiveness of the fuel system.
The specific control measures are as follows:
when the humidity RH in the passenger compartment 23 is less than or equal to a (a in the embodiment is 0.3), the humidity RH in the passenger compartment 23 is collected by the humidity sensor 29, and the humidifying program of the passenger compartment 23 is started; the ECU25 acquires signals of humidity RH and temperature t1 of the passenger compartment through the humidity sensor 29 and the second temperature sensor 30, sets required air intake Q1, temperature t2 and b (b of the embodiment is humidity set by the passenger, and b of the embodiment is 0.8) by passengers in the passenger compartment, calculates and adjusts the rotating speed of the air compressor 6 or the opening of the back pressure valve 15 (the back pressure valve 15 is arranged at the tail gas outlet end 12 of the humidifier 10) by combining the air compressor 6, increases the outlet flow of the air compressor to Q3, and Q3 is not more than Q1+ Q2, wherein Q2 is the required flow of the cathode inlet end 2 of the fuel cell stack 1.
The pressure and the temperature of the wet air outlet end 13 are respectively monitored through the pressure sensor 26 and the first temperature sensor 27 at the wet air outlet end 13 of the humidifier 10, when the gas pressure at the wet air outlet end 13 is reduced to 1bar and the temperature is reduced to t2, if the humidity RH in the passenger compartment is less than or equal to b at the moment, the air conditioner does not need to be started, and the passenger compartment air inlet Q1 is completely provided by the air compressor 6;
if the humidity RH > b in the passenger compartment is too high due to the fact that only the air compressor 6 provides the passenger compartment intake air, the air conditioner 24 is started, the dry air flow Q4 is provided by the air conditioner 24, and the air compressor 6 provides an extra (Q1-Q4) air flow, so that the high-humidity air is mixed with the dry air to adjust the humidity between a and b.
Adjusting the opening degrees of the control valve 22 and the electromagnetic valve 18, and distributing the gas flow proportion at the outlet of the humidifier 10 to meet the required flow rate Q2 of the stack entering cathode gas and the wet gas flow rate of the passenger compartment (Q1-Q4); next, the flow rate of the wet gas at the inlet of the cooler 19 (Q1-Q4) and the temperature t3 at the wet air outlet end 13 are collected by the first temperature sensor 27 and the first flow sensor 28 (located at the passenger compartment humidifying air outlet end 16), the rotating speed n of the cooling fan 20 is calculated and adjusted, the temperature of the gas entering the passenger compartment 23 is reduced to t2, the wet gas (Q1-Q4) is mixed with the dry air-conditioned gas Q4, and the humidity of the passenger compartment is controlled to be between a and b.
The wet and hot tail gas of the cathode of the fuel cell stack 1 flows into a tail gas inlet of the humidifier 10, moisture and heat in the wet and hot tail gas are transferred to compressed dry air through the hollow fiber membrane tube, the dry air is humidified and heated through gaseous water heat transfer and mass transfer, the humidity is uniform and does not contain liquid water, the content of oxygen in the gas introduced into the passenger compartment 23 is the same as that in the atmosphere, and the comfort level and the health degree are higher.
For the wet air at the outlet of the cooler 19, the humidity may be greater than the human comfort range, which may cause local condensation and precipitation of water droplets, for example, on the windshield, which may cause safety problems, so that the air conditioner 24 needs to work together, when the ECU25 calculates that the condenser humidity RH is less than or equal to 0.8, the air conditioner 24 may stop working, and when the ECU25 calculates that the condenser humidity RH is greater than 0.8, the air conditioner 24 needs to be started to provide part of the dry air to mix with the over-wet air, so as to achieve the comfortable humidity.
A part of the humidified gas of the fuel cell system is condensed to humidify the passenger compartment, so that the riding environment of the passenger compartment is improved, particularly after the passenger compartment is heated in winter, the air is very dry, the comfort level of passengers can be improved by appropriate humidification, particularly in long-distance riding, the dryness of eyes of a driver can be avoided, and the running safety of a vehicle is indirectly improved.
The foregoing shows and describes the general principles, essential features, and advantages of the invention. It will be understood by those skilled in the art that the present invention is not limited to the embodiments described above, which are given by way of illustration of the principles of the present invention, and that various changes and modifications may be made without departing from the spirit and scope of the invention as defined by the appended claims. The scope of the invention is defined by the appended claims and equivalents thereof.
Claims (13)
1. A fuel cell humidifying system with a passenger compartment humidifying function comprises a fuel cell stack (1) and a passenger compartment (23), wherein a humidifier (10) is arranged on one side of a cathode inlet end (2) of the fuel cell stack (1); the wet air outlet end (13) of the humidifier (10) is communicated with the cathode inlet end (2); the cathode outlet end (3) of the fuel cell stack (1) is communicated with the tail gas inlet end (14) of the humidifier (10),
the method is characterized in that: a communication pipeline is arranged between the humidifier (10) and the passenger cabin (23); the inlet end of the communication pipeline is communicated with a wet air outlet end (13) of the humidifier (10), and the outlet end of the communication pipeline is communicated with a passenger cabin (23).
2. The fuel cell humidification system with a passenger compartment humidification function of claim 1, wherein: a cooler (19) is arranged on the communicating pipeline; and a fan (20) for cooling the wet gas entering the cooler (19) is arranged in the cooler (19).
3. The fuel cell humidification system with a passenger compartment humidification function of claim 2, wherein: the cooler (19) is provided with a condensed water discharge pipe (21) for discharging cooling water.
4. A fuel cell humidification system with a function of humidifying a passenger compartment as claimed in claim 2 or 3, wherein: a communicating pipeline between the cooler (19) and the humidifier (10) is provided with an electromagnetic valve (18); the solenoid valve (18) is electrically connected to an ECU (25) of the vehicle.
5. The fuel cell humidification system with a passenger compartment humidification function of claim 2, wherein: a humidity sensor (29) for monitoring the humidity in the passenger cabin (23) and a second temperature sensor (30) for monitoring the temperature in the passenger cabin (23) are arranged in the passenger cabin (23); the humidity sensor (29) and the second temperature sensor (30) are electrically connected to an ECU (25) of the vehicle.
6. The fuel cell humidification system with a passenger compartment humidification function of claim 2, wherein: a second three-way pipe is arranged between the wet air outlet end (13) of the humidifier (10) and the cathode inlet end (2) of the fuel cell stack (1); the inlet of the second three-way pipe is communicated with a wet air outlet end (13), the pile humidified air outlet end (17) of the second three-way pipe is communicated with a cathode inlet end (2), and a passenger compartment humidified air outlet end (16) of the second three-way pipe is communicated with a cooler (19) through a communicating pipeline.
7. The fuel cell humidification system with a passenger compartment humidification function of claim 6, wherein: a control valve (22) is arranged between the second three-way pipe and the cathode inlet end (2) of the fuel cell stack (1); the control valve (22) is electrically connected to an ECU (25) of the vehicle.
8. The fuel cell humidification system with a passenger compartment humidification function of claim 1, wherein: an air filter (4), a flow meter (5), an air compressor (6) and a intercooler (9) are sequentially arranged on one side of a dry air inlet end (11) of the humidifier (10) along the gas flow direction; and a tail gas outlet end (12) of the humidifier (10) is provided with a back pressure valve (15).
9. A control method having the fuel cell humidification system of claim 1, wherein: and monitoring the humidity in the passenger compartment (23), and when the humidity in the passenger compartment (23) is lower than a first set limit value a, opening a communication pipeline to enable part of the wet air at the wet air outlet end (13) of the humidifier (10) to enter the passenger compartment (23) to humidify the passenger compartment (23).
10. A method of controlling a humidification system for a fuel cell as set forth in claim 9, wherein: monitoring the humidity in the passenger compartment (23), and when the humidity in the passenger compartment (23) is greater than a second set limit value b, starting an automobile air conditioner (24), introducing dry air into the passenger compartment (23), and regulating the flow of the wet air entering the passenger compartment (23) until the humidity in the passenger compartment (23) is between a first set limit value a and a second set limit value b; the second set limit b is greater than the first set limit a.
11. A method of controlling a humidification system for a fuel cell as recited in claim 10, wherein: monitoring the humidity in the passenger cabin (23), and when the humidity in the passenger cabin (23) is larger than a first set limit value a but smaller than a second set limit value b, not starting the automobile air conditioner (24), and only introducing wet air into the passenger cabin (23) through a wet air outlet end (13) of the humidifier (10); the second set limit b is greater than the first set limit a.
12. A method of controlling a humidification system for a fuel cell as claimed in any one of claims 9 to 11, wherein: the first set limit a is 0.3.
13. A method of controlling a humidification system for a fuel cell as claimed in any one of claims 9 to 11, wherein: the second set limit b is 0.8.
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| CN202010800951.2A CN111993857B (en) | 2020-08-11 | 2020-08-11 | Fuel cell humidifying system with passenger cabin humidifying function and control method |
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| CN202010800951.2A CN111993857B (en) | 2020-08-11 | 2020-08-11 | Fuel cell humidifying system with passenger cabin humidifying function and control method |
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Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN113067015A (en) * | 2021-03-04 | 2021-07-02 | 东风汽车集团股份有限公司 | Fuel cell air humidity adjusting system and control method thereof |
| CN113113633A (en) * | 2021-03-31 | 2021-07-13 | 东风汽车集团股份有限公司 | Fuel cell vehicle exhaust gas treatment system and method |
| CN113921872A (en) * | 2021-08-31 | 2022-01-11 | 东风汽车集团股份有限公司 | Fuel cell vehicle and humidity adjusting system and device thereof |
| CN114083963A (en) * | 2021-11-22 | 2022-02-25 | 中国第一汽车股份有限公司 | Vehicle-mounted air purification system, vehicle and control method |
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