CN114734788A - Humidity self-adjusting system and method for fuel cell vehicle - Google Patents
Humidity self-adjusting system and method for fuel cell vehicle Download PDFInfo
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- CN114734788A CN114734788A CN202210300206.0A CN202210300206A CN114734788A CN 114734788 A CN114734788 A CN 114734788A CN 202210300206 A CN202210300206 A CN 202210300206A CN 114734788 A CN114734788 A CN 114734788A
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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
- B60H3/022—Moistening ; Devices influencing humidity levels, i.e. humidity control for only humidifying the air
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- 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
- Y02T—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO TRANSPORTATION
- Y02T90/00—Enabling technologies or technologies with a potential or indirect contribution to GHG emissions mitigation
- Y02T90/40—Application of hydrogen technology to transportation, e.g. using fuel cells
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Abstract
The invention discloses a humidity self-adjusting system and method for a fuel cell vehicle, wherein the system comprises: the tail gas mixed exhaust subsystem, the humidity adjusting subsystem and the air-conditioning air supply subsystem. The tail gas mixes the exhaust subsystem and includes vapour and liquid separator, drain box and exhaust box, and the humidity control subsystem includes humidity controller, humidity control valve, outer thermodetector of car and passenger cabin moisture detector, and humidity control valve passes through the pipeline intercommunication with the delivery port of drain box, the gas vent of exhaust box and the air inlet of air conditioner air supply subsystem respectively. The humidity controller is used for adjusting the opening of the humidity adjusting valve based on the actual measurement temperature value acquired by the outside temperature detector and the actual measurement humidity value acquired by the cabin humidity detector so as to control the mixing proportion of the liquid flowing out of the drainage box and the gas exhausted from the exhaust box and enable the mixed gas to flow into the air supply subsystem of the air conditioner. The air-conditioning air supply subsystem is used for sending mixed air into the cabin so as to adjust the air humidity in the cabin.
Description
Technical Field
The invention relates to the technical field of fuel cell vehicle control, in particular to a humidity self-adjusting system and method for a fuel cell vehicle.
Background
Environmental comfort is of great importance to the driver, especially humidity. If the humidity is high, the heat dissipation of a human body is difficult, and the phenomena of fog, water drops, icing and the like generated in the cabin can be caused due to overhigh humidity of the cabin, so that the problems of interior decoration, microbial propagation of wire harnesses and the like are caused; if the humidity is low, nasopharynx, lips and eyes are dry, the skin is rough, infectious diseases are easy to obtain, the working efficiency is reduced due to long-time drying, particularly, the nasopharynx, lips and eyes are abnormally dry under the condition of opening a heater in a vehicle in winter, and the air humidity in the cabin is improved in order to improve the driving comfort.
The humidity control devices that are commercially available today have a number of disadvantages, such as: the humidity adjustment is not intelligent enough and the control precision is poor.
Disclosure of Invention
The embodiment of the application improves the accuracy of humidity control by providing a humidity self-adjusting system and a method for a fuel cell vehicle, which can adaptively adjust the air humidity in a vehicle cabin, so that the humidity in the cabin is continuously maintained in a proper range.
In a first aspect, the present invention provides the following technical solutions through an embodiment of the present invention:
a humidity self-regulating system for a fuel cell vehicle, comprising: the tail gas mixed exhaust subsystem, the humidity adjusting subsystem and the air-conditioning air supply subsystem; the tail gas mixed exhaust subsystem comprises a gas-liquid separator, a water drainage tank and an exhaust tank, wherein an input port of the gas-liquid separator is communicated with a tail gas output port of the fuel cell, a first output port of the gas-liquid separator is communicated with a water inlet of the water drainage tank, and a second output port of the gas-liquid separator is communicated with a gas inlet of the exhaust tank through a pipeline; the humidity adjusting subsystem comprises a humidity controller, a humidity adjusting valve, an outside temperature detector and a cabin humidity detector, wherein a first input port of the humidity adjusting valve is communicated with a water outlet of the water drainage box through a pipeline, a second input port of the humidity adjusting valve is communicated with an exhaust port of the exhaust box through a pipeline, an output port of the humidity adjusting valve is communicated with an air inlet of the air conditioning air supply subsystem through a pipeline, and the humidity controller is respectively connected with a control end of the humidity adjusting valve, the outside temperature detector and the cabin humidity detector; the humidity controller is used for adjusting the opening of the humidity adjusting valve based on an actually measured temperature value acquired by the outside temperature detector and an actually measured humidity value acquired by the cabin humidity detector so as to control the mixing ratio of the liquid flowing out of the drainage tank and the gas exhausted from the exhaust tank; the air-conditioning air supply subsystem is used for sending the mixed gas output from the output port of the humidity adjusting valve into the cabin so as to adjust the air humidity in the cabin.
Preferably, the humidity conditioning subsystem further comprises: and the shutoff stop valve is arranged on a connecting pipeline between the humidity regulating valve and the air inlet of the air-conditioning air supply subsystem.
Preferably, the system further comprises an air compressor, the humidity conditioning subsystem further comprises: a gas pressure regulating valve and a first pressure detector; one end of the air pressure regulating valve is connected with the output end of the air compressor, the other end of the air pressure regulating valve is respectively communicated with the water inlet of the drainage box and the air inlet of the exhaust box through pipelines, and the first pressure detector is arranged on a pipeline between the air pressure regulating valve and the water inlet of the drainage box and the air inlet of the exhaust box and is used for collecting an air pressure value at the pipeline to obtain a first pressure value; the control end of the air pressure regulating valve and the first pressure detector are both connected with the humidity controller, and the humidity controller is used for regulating the opening degree of the air pressure regulating valve based on the first pressure value, so that the first pressure value is in a first preset pressure range.
Preferably, the humidity conditioning subsystem further comprises: the second pressure detector is arranged between the humidity regulating valve and an air inlet of the air-conditioning air supply subsystem and is used for collecting the pressure value of the mixed gas flowing out of an output port of the humidity regulating valve to obtain a second pressure value; the control end of the second pressure detector is connected with the humidity controller, the humidity controller is used for adjusting the opening degree of the air pressure adjusting valve based on the second pressure value, so that the pressure of mixed gas flowing out of the output port of the humidity adjusting valve is within a second preset pressure range.
Preferably, the system further comprises an air compressor, the humidity conditioning subsystem further comprises: the system comprises an air pressure regulating valve, a first pressure detector, a second pressure detector, a water pump and a three-way valve; one end of the air pressure regulating valve is connected with the output end of the air compressor, the other end of the air pressure regulating valve is respectively communicated with the air inlet of the exhaust box through a pipeline, and the first pressure detector is arranged on the pipeline between the air pressure regulating valve and the air inlet of the exhaust box and used for collecting the air pressure value at the pipeline to obtain a first pressure value; the control end of the air pressure regulating valve and the first pressure detector are both connected with the humidity controller, and the humidity controller is used for regulating the opening degree of the air pressure regulating valve based on the first pressure value so that the first pressure value is in a first preset pressure range; the input end of the water pump is communicated with the water outlet of the water drainage tank through a pipeline, the output end of the water pump is communicated with the first input port of the three-way valve, the second input port of the three-way valve is communicated with the water inlet of the water drainage tank, the output port of the three-way valve is communicated with the first input port of the humidity regulating valve, and the second pressure detector is arranged between the humidity regulating valve and the air inlet of the air-conditioning air supply subsystem and is used for collecting the pressure value of the mixed gas flowing out of the output port of the humidity regulating valve to obtain a second pressure value; the control end of water pump the control end of second pressure detector with humidity controller connects, humidity controller still is used for based on the second pressure value, adjusts the aperture of air pressure regulating valve and the rotational speed of water pump makes the mist pressure that the humidity regulating valve delivery outlet flows is in the second preset pressure range.
Preferably, the exhaust gas mixed emission subsystem further comprises: a water level detector disposed in the drain tank, the water level detector for detecting a water level of the drain tank; the water level detector is connected with the humidity controller, and the humidity controller is further used for: and if the water level is detected to be lower than the preset water level height, sending out a water level abnormity prompt.
Preferably, the humidity conditioning subsystem further comprises: the atomizer, the input port of atomizer with humidity control valve's delivery outlet is connected, the delivery outlet of atomizer with air conditioner air supply subsystem's air inlet passes through the pipeline intercommunication, the atomizer is used for right the follow the mist that humidity control valve flowed out disperses to the mist after will dispersing sprays into air conditioner air supply subsystem.
In a second aspect, the present invention provides the following technical solutions through an embodiment of the present invention:
a humidity self-adjustment method for a fuel cell vehicle, which is applied to the humidity self-adjustment system according to the first aspect, the method comprising: acquiring an actual measurement temperature value collected by the outside temperature detector and an actual measurement humidity value collected by the cabin humidity detector; and adjusting the opening degree of the humidity adjusting valve based on the actually measured temperature value and the actually measured humidity value.
Preferably, the controlling the opening degree of the humidity adjusting valve based on the measured temperature value and the measured humidity value includes: determining a humidity target value of the vehicle cabin based on the measured temperature value and a preset corresponding relation, wherein the preset corresponding relation is the corresponding relation between the temperature value and the humidity target value; and adjusting the opening degree of the humidity adjusting valve based on the deviation between the humidity target value and the actually measured humidity value.
Preferably, before acquiring the measured temperature value collected by the external temperature detector and the measured humidity value collected by the cabin humidity detector, the method further includes: opening an air pressure regulating valve; collecting a pressure value at a pipeline between the air pressure regulating valve and a water inlet of the drainage tank and a gas inlet of the exhaust tank to obtain a first pressure value; adjusting the opening degree of the air pressure adjusting valve based on the first pressure value, so that the first pressure value is in a first preset pressure range; after the controlling the opening degree of the humidity regulating valve, the method further comprises the following steps: acquiring a second pressure value acquired by a second pressure detector; and adjusting the opening degree of the air pressure adjusting valve based on the second pressure value, so that the pressure of the mixed gas flowing out of the output port of the humidity adjusting valve is within a second preset pressure range.
One or more technical solutions provided in the embodiments of the present application have at least the following technical effects or advantages:
the invention introduces tail gas generated by a fuel cell of a vehicle into an air inlet liquid separator, performs gas-liquid separation on the tail gas to obtain gas and liquid, sends the gas into an exhaust box, sends the liquid into a drain box, wherein a water outlet of the drain box and an exhaust port of the exhaust box are respectively connected with a first input port and a second input port of a humidity adjusting valve through pipelines, an output port of the humidity adjusting valve is communicated with an air inlet of an air-conditioning air supply subsystem through a pipeline, namely the liquid in the drain box and the gas in the exhaust box are communicated with the air inlet of the air-conditioning air supply subsystem through the humidity adjusting valve and the pipelines. The system still includes outer thermodetector of car and passenger cabin moisture detector, humidity controller can be based on the actual measurement humidity value that actual measurement temperature value and passenger cabin moisture detector that outer thermodetector gathered, adjust humidity control valve's aperture, thereby control from the liquid of drain box outflow and the gaseous mixture proportion of following the exhaust box outflow, make the mist flow into air conditioner air supply subsystem, in air conditioner air supply subsystem is used for sending into the passenger cabin with mist, adjust the air humidity in the passenger cabin. The method takes tail gas generated by the fuel cell as a source, adaptively adjusts the opening of the humidity adjusting valve based on the temperature outside the vehicle and the humidity in the cabin, and changes the humidity of the mixed gas, thereby realizing the self-adjustment of the humidity in the cabin, improving the accuracy of humidity control, and maintaining the humidity of the cabin in a range comfortable for human body.
Drawings
In order to more clearly illustrate the technical solutions in the embodiments of the present invention, the drawings required to be used in the description of the embodiments are briefly introduced below, and it is obvious that the drawings in the description below are some embodiments of the present invention, and it is obvious for those skilled in the art to obtain other drawings based on the drawings without creative efforts.
Fig. 1 is a schematic structural diagram of a humidity self-regulating system for a fuel cell vehicle according to an embodiment of the present invention;
fig. 2 is a schematic structural diagram of another humidity self-regulating system for a fuel cell vehicle according to an embodiment of the present invention;
fig. 3 is a flowchart of a humidity self-adjustment method for a fuel cell vehicle according to an embodiment of the present invention;
fig. 4 is a flowchart illustrating a humidity self-adjusting method for a fuel cell vehicle according to an embodiment of the present invention;
fig. 5 is a schematic flow chart of a humidity self-adjustment method for a fuel cell vehicle according to an embodiment of the present invention.
Detailed Description
The embodiment of the application improves the accuracy of humidity control by providing a humidity self-adjusting system and a method for a fuel cell vehicle, which can adaptively adjust the air humidity in a vehicle cabin, so that the humidity in the cabin is continuously maintained in a proper range.
The technical scheme of the embodiment of the application has the following general idea:
a humidity self-regulating system for a fuel cell vehicle, comprising: the tail gas mixed exhaust subsystem, the humidity adjusting subsystem and the air-conditioning air supply subsystem; the tail gas mixed exhaust subsystem comprises a gas-liquid separator, a water drainage tank and an exhaust tank, wherein an input port of the gas-liquid separator is communicated with a tail gas output port of the fuel cell, a first output port of the gas-liquid separator is communicated with a water inlet of the water drainage tank, and a second output port of the gas-liquid separator is communicated with an air inlet of the exhaust tank through a pipeline; the humidity adjusting subsystem comprises a humidity controller, a humidity adjusting valve, an outside temperature detector and a cabin humidity detector, wherein a first input port of the humidity adjusting valve is communicated with a water outlet of the water discharging tank through a pipeline, a second input port of the humidity adjusting valve is communicated with an exhaust port of the exhaust box through a pipeline, an output port of the humidity adjusting valve is communicated with an air inlet of the air-conditioning air supply subsystem through a pipeline, and the humidity controller is respectively connected with a control end of the humidity adjusting valve, the outside temperature detector and the cabin humidity detector; the humidity controller is used for adjusting the opening of the humidity adjusting valve based on an actual measurement temperature value acquired by the outside temperature detector and an actual measurement humidity value acquired by the cabin humidity detector so as to control the mixing ratio of the liquid flowing out of the drainage tank and the gas exhausted from the exhaust tank; the air-conditioning air supply subsystem is used for sending the mixed gas output from the output port of the humidity adjusting valve into the cabin so as to adjust the air humidity in the cabin.
In order to better understand the technical solution, the technical solution will be described in detail with reference to the drawings and the specific embodiments.
It should be noted that, the humidity controller in the present application may be: a PLC (Programmable Logic Controller) or a single chip microcomputer, etc.
In a first aspect, an embodiment of the present invention provides a humidity self-adjusting system for a fuel cell vehicle, specifically, as shown in fig. 1, the system includes: the tail gas mixing and exhausting subsystem, the humidity adjusting subsystem and the air supply subsystem of the air conditioner.
The tail gas mixed exhaust subsystem comprises a gas-liquid separator, a water drainage tank and an exhaust tank, wherein an input port of the gas-liquid separator is communicated with a tail gas output port of the fuel cell 16, a first output port of the gas-liquid separator is communicated with a water inlet of the water drainage tank, and a second output port of the gas-liquid separator is communicated with an air inlet of the exhaust tank through a pipeline.
In a specific embodiment, the gas-liquid separator may include a first gas-liquid separator 21 and a second gas-liquid separator 22, an input port of the first gas-liquid separator 21 communicates with an air output port of the fuel cell 16, a first output port of the first gas-liquid separator 21 communicates with a water inlet of a water discharge tank, a second output port communicates with an air inlet of an air discharge tank through a pipe, an input port of the second gas-liquid separator 22 communicates with a hydrogen output port of the fuel cell 16, a first output port of the second gas-liquid separator 22 communicates with a water inlet of the water discharge tank, and a second output port communicates with an air inlet of the air discharge tank through a pipe.
Specifically, the first gas-liquid separator 21 is used for processing waste gas in a hydrogen passage, and has three interfaces, wherein the channel 1 is connected with a hydrogen tail gas outlet of the fuel cell 16, the channel 2 separates water from hydrogen tail gas, and the channel 3 separates gas from hydrogen tail gas. The second gas-liquid separator 22 is used for air path waste gas treatment and has three interfaces, a channel 1 is connected with an air tail gas outlet of the fuel cell 16, a channel 2 is used for separating moisture from the air tail gas, and a channel 3 is used for separating gas from the air tail gas.
The tail gas mixed exhaust subsystem comprises a mixed exhaust box 23, and the mixed exhaust box 23 comprises two cavities: the first delivery outlet 2 of the first gas-liquid separator 21 is communicated with the first water inlet of the drain tank, the second delivery outlet 3 is communicated with the first water inlet of the exhaust tank, the first delivery outlet 2 of the second gas-liquid separator 22 is communicated with the second water inlet of the drain tank, and the second delivery outlet 3 of the second gas-liquid separator 22 is communicated with the second water inlet of the exhaust tank.
The humidity adjusting subsystem comprises a humidity controller 30, a humidity adjusting valve 32, an external temperature detector 39 and a cabin humidity detector 37, a first input port of the humidity adjusting valve 32 is communicated with a water outlet of the water discharging tank through a pipeline, a second input port of the humidity adjusting valve is communicated with an exhaust port of the exhaust box through a pipeline, an output port of the humidity adjusting valve is communicated with an air inlet of the air conditioning air supply subsystem through a pipeline, and the humidity controller 30 is respectively connected with a control end of the humidity adjusting valve 32, the external temperature detector 39 and the cabin humidity detector 37.
Specifically, the water outlet of the drain tank is communicated with the first input port 1 of the humidity control valve 32 through a pipeline, the air outlet of the exhaust tank is communicated with the second input port 2 of the humidity control valve 32 through a pipeline, and the outlet of the mixed exhaust tank 23 communicates the drain tank and the exhaust tank with the outside air.
The external temperature detector 39 (e.g., a temperature sensor, a thermometer, etc.) may be disposed outside the vehicle, for example, on the top, the rear, etc. of the vehicle, for detecting the temperature in the environment of the vehicle, and the cabin humidity sensor (e.g., a humidity sensor, a hygrometer, etc.) may be disposed at any position in the cabin, for example, above the cabin, behind the seat, etc., for detecting the humidity value in the vehicle cabin.
The humidity controller 30 is configured to obtain an actual measurement temperature value collected by the outside temperature detector 39 and an actual measurement humidity value collected by the cabin humidity detector 37, and adjust the opening of the humidity control valve 32 based on the actual measurement temperature value and the actual measurement humidity value to control the mixing ratio of the liquid flowing out of the drain tank and the gas discharged from the exhaust tank.
The air-conditioning air supply subsystem is used for sending the mixed gas output from the output port of the humidity adjusting valve into the cabin so as to adjust the air humidity in the cabin.
In a particular embodiment, an air conditioning air supply subsystem includes: a blower 41, an evaporator 42, a warm air heat exchanger 43, an air mixing damper 44, an air outlet 45, and an air-conditioning air supply duct 46. The evaporator 42 is mainly used for air conditioning refrigeration, and has an atomized low-temperature low-pressure gaseous refrigerant inside, which causes the temperature around the evaporator to be very low, and the cold air around the evaporator is sent into the vehicle through an air conditioning air supply duct 46 by the blower 41. The warm air heat exchanger 43 heats water to generate heat, and hot air generated by heat exchange around the evaporator by the blower 41 is sent into the vehicle through the air-conditioning air supply duct 46. The air mixing damper 44 can realize the passage switching of the cold air and the hot air.
A blower in the air-conditioning air supply subsystem sends mixed air into a cabin to adjust the air humidity in the cabin.
It should be noted that the humidity conditioning subsystem further includes: and the purification device 33 is connected between the humidity adjusting valve 32 and an air inlet of the air-conditioning air supply subsystem, the purification device 33 is used for purifying the mixed gas flowing out from the output end of the humidity adjusting valve 32, and the purification device 33 can remove impurities in water and simultaneously purify hydrogen and harmful gases in gas in a pipeline. The purification device 33 may be constituted by a gas purification device and a multi-layer mineral-filtered water purification device, for example.
In the embodiment, in order to control the mixing ratio of the liquid flowing out from the drain tank and the gas exhausted from the exhaust tank when the opening degree of the humidity control valve 32 is adjusted, when the opening degree of the humidity control valve 32 is zero, the second input port 2 of the humidity control valve 32 is communicated with the output port 3 (i.e. the exhaust tank can be communicated in the humidity control valve 32), the first input port 1 and the output port 3 are closed, and by opening the humidity control valve 32 and continuously adjusting the opening degree of the humidity control valve 32, water in the drain tank can be mixed into the gas from the second input port 2 and the output port 3 as required, so that the humidity of the mixed gas flowing into the air-conditioning subsystem from the output port of the humidity control valve 32 is changed. Specifically, the greater the opening degree of the degree adjusting valve, the higher the humidity of the mixed gas.
In a specific embodiment, adjusting the opening degree of the humidity control valve 32 based on the measured temperature value collected by the external temperature detector 39 and the measured humidity value collected by the cabin humidity detector 37 may include: determining a humidity target value of the vehicle cabin based on the measured temperature value and a preset corresponding relation, wherein the preset corresponding relation is the corresponding relation between the temperature value and the humidity target value; the opening degree of the humidity adjustment valve 32 is adjusted based on the deviation between the humidity target value and the measured humidity value.
Specifically, the actual measurement temperature value and the humidity target value of the vehicle cabin have a corresponding relationship, so that the humidity target value of the vehicle cabin can be determined based on the actual measurement temperature value, and when the actual measurement temperature value is within a first preset temperature range, the humidity target value is determined to be a first target temperature; when the actually measured temperature value is within a second preset temperature range, determining the humidity target value as a second target temperature; and when the actually measured temperature value is within a third preset temperature range, determining that the humidity target value is a third target temperature.
For example: when the detected actual temperature value Tamb is less than or equal to 5 ℃, determining the humidity target value RHSet as the humidity of 60-70%; when the detected temperature value is 5 ℃ and Tamb are less than 30 ℃, determining the humidity target value RHSet as the humidity of 45-60%; when the detected actual temperature value Tamb is more than 30 ℃, the humidity target value RHSet is determined to be 40-50% of humidity.
The deviation between the target humidity value and the measured humidity value in the cabin is compared, and the opening of the humidity control valve 32 is adjusted based on the deviation so that the measured humidity value in the cabin is within the preset humidity range RHset. In a specific embodiment, if the comparison results that the measured humidity value in the cabin is equal to the humidity target value (i.e., within the range of the humidity target value), the humidity adjustment valve 32 is not adjusted; if the actually measured humidity value in the cabin is smaller than the target humidity value, the opening degree of the humidity adjusting valve 32 is increased, and the liquid in the drainage tank is increased to be mixed into the gas discharged from the exhaust tank; if the comparison shows that the actually measured humidity value in the cabin is larger than the humidity target value, the opening degree of the humidity adjusting valve 32 is reduced, and the liquid in the drainage tank is reduced to be mixed into the gas discharged from the exhaust tank. While the humidity adjustment valve 32 is adjusted, the humidity value in the cabin is acquired in real time, and until the humidity value acquired by the cabin humidity detector 37 is equal to the humidity target value, the humidity adjustment valve 32 is stopped being adjusted.
Further, in order to control the conduction state between the tail gas output port of the fuel cell 16 and the air-conditioning air supply subsystem, the humidity adjusting subsystem further comprises a shutoff stop valve 34, and the shutoff stop valve 34 is arranged on a connecting pipeline between the humidity adjusting valve 32 and the air inlet of the air-conditioning air supply subsystem.
In the initial state, the shutoff valve 34 is in the off state. As an optional embodiment, the system may further include a humidifying button 38, the humidifying button 38 is respectively connected to the control end of the shutoff stop valve 34 and the humidity controller 30, and is used for controlling the opening and closing of the shutoff stop valve 34 and the humidity controller 30, and the process of opening the shutoff stop valve 34 may include: when the humidification button 38 is closed, the shutoff valve 34 is closed and the humidity controller 30 is opened, and then the humidity controller 30 acquires the measured temperature value acquired by the vehicle exterior temperature detector 39 and the measured humidity value acquired by the cabin humidity detector 37, and adjusts the opening degree of the humidity adjustment valve 32 based on the measured temperature value and the measured humidity value. When the humidifying button 38 is turned off, the shutoff valve is turned off and the humidity controller stops operating. The humidifying button 38 may be a virtual button, and the user may turn on or off the humidifying button 38 through an operation panel of the vehicle.
As another alternative embodiment, the process of opening and closing the shutoff valve 34 may further include: the control end of the shutoff stop valve is connected with the humidity controller, and the humidity controller 30 is used for opening the shutoff stop valve 34 after the actually measured humidity value in the cabin is greater than or less than the target humidity value through comparison, so that the mixed gas flowing out from the output port of the humidity adjusting valve 32 flows into the air-conditioning air supply subsystem through the shutoff stop valve 34. The humidity controller 30 is further configured to close the shutoff stop valve 34 when the comparison result shows that the measured humidity value in the cabin is equal to the humidity target value and it is detected that the shutoff stop valve 34 is in the open state.
Further, in order to ensure that the liquid and gas in the mixing and discharging tank 23 can flow to the humidity control valve 32 to reach the air-conditioning air supply subsystem, the system further comprises an air compressor 13, and the humidity control subsystem further comprises an air pressure control valve 31 and a first pressure detector 311. One end of the air pressure regulating valve 31 is connected with the output end of the air compressor 13, the other end of the air pressure regulating valve 31 is communicated with the water inlet of the drainage box and the air inlet of the exhaust box through pipelines respectively, and the first pressure detector 311 is arranged on the pipeline between the air pressure regulating valve 31 and the water inlet of the drainage box and the air inlet of the exhaust box and used for acquiring the air pressure value of the pipeline to obtain the first pressure value. Among them, the first pressure detector 311 may be various types of pressure sensors.
The control end of the air pressure adjusting valve 31 and the first pressure detector 311 are both connected to the humidity controller 30, and the humidity controller 30 is configured to adjust the opening degree of the air pressure adjusting valve 31 based on the first pressure value, so that the first pressure value is within a first preset pressure range.
In a specific embodiment, the system further comprises an FCS air supply subsystem having an input for introducing ambient air and an output connected to the cathode inlet of the fuel cell 16, the FCS air supply subsystem being configured to provide air to the stack of fuel cells 16. Specifically, the FCS air supply subsystem may specifically include: the fuel cell system comprises a back pressure valve 17, an air filter 11, an air flow meter 12, an air compressor 13, an intercooler 14 and a humidifier 15 which are sequentially connected, wherein the input end of the air filter 11 is communicated with the atmosphere, the output end of the humidifier 15 is connected with the cathode air inlet end of a fuel cell 16, one end of the back pressure valve 17 is connected with an air tail gas outlet, and the other end of the back pressure valve 17 is connected with the input end of a second gas-liquid separator 22.
Specifically, air in the atmosphere enters an air inlet, impurities, dust and moisture in the air are removed through an air filter 11 and a purification device 33, the air enters an air flow meter 12, the flow meter accumulates the entering amount of the collected air, the air entering the flow meter is compressed through an air compressor 13 and then flows into an intercooler 14, the high-temperature and high-pressure air is cooled and then flows into an air humidifier 15, and then the air flows into a cathode air inlet end of a fuel cell 16 and enters a fuel cell 16 stack for reaction. The fuel cell 16 is discharged from the stack and enters the tail gas mixed exhaust system through a backpressure valve 17. The backpressure valve 17 is in communication with the air compressor 13 to establish air inlet stack pressure. The air inlet pile and the air outlet pile are respectively provided with an air temperature and pressure sensor for detecting the temperature and the pressure of the air inlet pile and the temperature and the pressure of the air outlet pile.
One end of the air pressure regulating valve 31 is connected with the output end of the air compressor 13, the other end of the air pressure regulating valve is connected with the air inlet of the drainage box and the air inlet of the exhaust box at the same time, the humidity controller 30 acquires a first pressure value collected by the first pressure detector 311, and the first pressure detector 311 is used for detecting the air pressure value of the air outlet of the air compressor 13 entering the drainage box and the air pressure value of the exhaust box.
Specifically, the humidity controller 30 adjusts the opening degree of the air pressure adjusting valve 31 based on the first pressure value, including: comparing the relation between the first pressure value and the first preset pressure range, if the first pressure value is in the first preset pressure range, adjusting the air pressure adjusting valve 31, if the first pressure value is smaller than the lowest value in the first preset pressure range, adjusting the opening degree of the air pressure adjusting valve 31, if the first pressure value is larger than the maximum value in the first preset pressure range, adjusting the opening degree of the air pressure adjusting valve 31 until the first pressure value is detected to be in the first preset pressure range. The first preset pressure range can be calibrated according to actual needs, and the application is not limited.
Before adjusting the opening of the humidity control valve 32, the humidity controller 30 is configured to adjust the opening of the air pressure control valve 31 based on the first pressure value, so that the first pressure value is within a first preset pressure range, and the liquid and the gas in the exhaust box and the drain box have a certain pressure, and can smoothly flow to the humidity control valve 32 and enter the air-conditioning air supply subsystem.
Because the humidity of the tail gas in the exhaust box is generally 95%, the humidity of the mixed gas in the exhaust box can be reduced after the air at the outlet of the air compressor 13 is mixed in the exhaust box by adjusting the opening degree of the air pressure adjusting valve 31, and generally speaking, under the condition that the air pressure adjusting valve 31 is opened to the maximum, the humidity of the mixed gas in the exhaust box can be calibrated to be 65% -75% according to the volume of the drainage box.
Further, in order to ensure that the mixed gas has enough pressure to flow to the air-conditioning air supply subsystem and be sprayed out, the humidity adjusting subsystem further comprises: and the second pressure detector 35, the second pressure detector 35 is arranged between the humidity control valve 32 and the air inlet of the air-conditioning air supply subsystem, and is used for collecting the pressure value of the mixed gas flowing out from the output port of the humidity control valve 32 to obtain a second pressure value.
The control end of the second pressure detector 35 is connected to the humidity controller 30, and the humidity controller 30 is configured to adjust the opening degree of the air pressure adjusting valve 31 based on the second pressure value, so that the pressure of the mixed gas flowing out of the output port of the humidity adjusting valve 32 is within a second preset pressure range.
Specifically, in the case that the humidity control valve 32 has a certain opening degree, if the humidity controller 30 compares that the second pressure value is not within the second preset pressure range, the opening degree of the air pressure control valve 31 is adjusted so that the second pressure value is within the second preset pressure range. Specifically, if the second pressure value is equal to the lowest pressure value within the first preset pressure range, it indicates that the current pressure is just capable of sending the mixed gas into the air supply subsystem of the air conditioner, and if the second pressure value is smaller than the minimum value within the first preset pressure range, it indicates that the current second pressure value is smaller, the opening degree of the atmospheric pressure regulating valve 31 is regulated until the second pressure value can be within the second preset pressure range; if the second pressure value is greater than the maximum value in the first preset pressure range, indicating that the current second pressure value is greater, the opening degree of the air pressure regulating valve 31 is decreased.
Wherein the second predetermined pressure range may be experimentally derived. It should be noted that, in one of the scenarios, the first preset pressure range may also be equal to the second preset pressure range.
As another alternative embodiment, as shown in fig. 2, the system further includes an air compressor 13, and the humidity adjustment subsystem further includes: the air pressure regulating valve 31, the first pressure detector 311, the second pressure detector 311, the water pump 36, and the three-way valve 29. One end of the air pressure regulating valve 31 is connected with the output end of the air compressor 13, the other end of the air pressure regulating valve 31 is communicated with the air inlet of the air exhaust box through a pipeline, and the first pressure detector 311 is arranged on the pipeline between the air pressure regulating valve 31 and the air inlet of the air exhaust box and used for collecting the air pressure value at the pipeline to obtain a first pressure value. The control end of the air pressure adjusting valve 31 and the first pressure detector 311 are both connected to the humidity controller 30, and the humidity controller 30 is configured to adjust the opening degree of the air pressure adjusting valve 31 based on the first pressure value, so that the first pressure value is within a first preset pressure range. That is, the pressure of the gas in the exhaust tank can be changed by adjusting the opening degree of the gas pressure regulating valve 31.
The input end of the water pump 36 is communicated with the water outlet of the water drainage tank through a pipeline, the output end of the water pump 36 is communicated with the first input port of the three-way valve 29, the second input port of the three-way valve 29 is communicated with the water inlet of the water drainage tank, the output port of the three-way valve 29 is communicated with the first input port of the humidity adjusting valve 32, and the second pressure detector 311 is arranged between the humidity adjusting valve 32 and the air inlet of the air-conditioning air supply subsystem and used for collecting the pressure value of the mixed gas flowing out of the output port of the humidity adjusting valve 32 to obtain a second pressure value. The control end of the water pump 36 and the control end of the second pressure detector 311 are connected to the humidity controller 30, and the humidity controller 30 is further configured to adjust the opening of the air pressure regulating valve 31 and the rotation speed of the water pump 36 based on the second pressure value, so that the pressure of the mixed gas flowing out from the output port of the humidity regulating valve 32 is within a second preset pressure range.
Specifically, the water pump 36 is mainly used for pumping the water pump 36 to the first input port 1 of the humidity control valve 32 in the drain tank, the water inlet of the water pump 36 is communicated with the water outlet of the drain tank through a pipeline, the water outlet of the water pump 36 is connected to the first input port 1 of the three-way valve 29 through a pipeline, the second input port 2 of the three-way valve 29 is connected to the water inlet of the drain tank, and the output port 3 of the three-way valve 29 is connected to the first input port 1 of the humidity control valve 32.
Specifically, adjusting the opening of the air pressure regulating valve 31 and the rotation speed of the water pump 36 based on the second pressure value may include: if the comparison result shows that the second pressure value is smaller than the lowest value in the second preset pressure range, the rotating speed of the water pump 36 and the opening degree of the air pressure regulating valve 31 are increased, so that the pressure value of the mixed gas flowing out of the output port of the shutoff valve is ensured to be in the second preset pressure range, and the mixed gas can be sent into the air-conditioning air supply subsystem by the current pressure.
Here, the water pump 36 is used to pressurize the water flow in the drain tank and to drive the water to the outlet of the air-conditioning blowing subsystem of the atomizer 310, instead of using the high-pressure and high-temperature gas at the outlet of the air compressor 13 to increase the pressure of the drain tank. Because high-pressure high-temperature gas at the outlet of the air compressor 13 enters the drainage box and the exhaust box at the same time, the air pressure is possibly unstable, and therefore the problems that the two boxes cannot be effectively pressurized at the same time, the air pressure cannot be distributed in the two cavities, the air pressure sensor can only detect the common pressure of the two boxes and the pressure of the two cavities can not be effectively detected, and the like can be effectively solved by additionally arranging the water pump 36 and the three-way valve 29.
Further, in order to ensure that the liquid amount in the drain tank can meet the requirement of humidity adjustment, the tail gas mixed exhaust subsystem further comprises: a water level detector 24, the water level detector 24 being provided in the drain tank for detecting a water level of the drain tank. The water level detector 24 is connected to the humidity controller 30, and the humidity controller 30 is further configured to: and if the detected water level is lower than the preset water level height, sending out a water level abnormity prompt. Wherein, predetermine water level height and can mark according to actual need, this application does not limit. The water level detector 24 may be a water level sensor, a liquid level controller, an electronic level gauge, or the like.
Specifically, the humidity controller 30 may be connected to a vehicle display panel, and when the water level in the drain tank is detected to be lower than a preset water level height, the water level abnormality information is displayed through the display panel, or the humidity controller 30 may be further connected to an alarm, and the alarm gives an alarm for the water level abnormality.
Further, the humidity conditioning subsystem further comprises: and an input port of the atomizer 310 is connected with an output port of the humidity control valve 32, an output port of the atomizer 310 is communicated with an air inlet of the air-conditioning air supply subsystem through a pipeline, and the atomizer 310 is used for dispersing the mixed gas flowing out of the humidity control valve 32 and spraying the dispersed mixed gas into the air-conditioning air supply subsystem.
In a specific embodiment, the atomizer 310 sprays the liquid or gas into a mist by using a nozzle or dispersing the liquid or gas into tiny droplets with a high-speed airflow, and the atomizer 310 is disposed in the air-conditioning duct inside the vehicle near the air outlet.
Optionally, a purifier may be further disposed in the atomizer 310, and the purifier is mainly used for purifying water and gas in the pipeline, removing impurities in the water, and simultaneously purifying hydrogen and harmful gas in the pipeline.
Furthermore, in order to avoid the phenomenon of uneven humidity distribution in the whole vehicle cabin, when the supply of atomized air is realized by adopting the air outlet pipeline of the vehicle-mounted air conditioner, air humidification can be realized at each air outlet, and the uniform humidification in the whole vehicle cabin is realized. Wherein the humidity self-regulating system requires the air conditioning system of the vehicle to be turned on prior to start-up.
Thus, as shown in fig. 3, the working flow of one humidity self-regulating system provided by the present application is as follows:
s1: turning on an air conditioning system, pressing a humidifying button, and starting a humidity self-adjusting system;
s2: opening a shutoff stop valve, and opening a gas pressure regulating valve to allow high-temperature and high-pressure gas at the outlet of the air compressor to enter an exhaust box and a drainage box;
s3: adjusting the opening of the air pressure adjusting valve to enable the pressure of the exhaust box and the water drainage box to be within a first preset pressure range;
s4: acquiring an actual measurement temperature value acquired by an external temperature detector and an actual measurement humidity value in a cabin, and acquiring a humidity target value based on the actual measurement temperature value;
s5: adjusting the opening of a humidity adjusting valve based on the humidity target value and the actually-measured humidity value to ensure that the humidity of the cabin reaches the humidity target value;
s6: under the condition that the opening of the humidity regulating valve is fixed (when the opening is in a non-0 state), the opening of the air pressure regulating valve is regulated based on the pressure value collected by the second pressure detector, and the front pressure of the atomizer is ensured to be within a second preset pressure range;
s7: the atomizer atomizes the mixed gas, and then sprays the atomized mixed gas into an air supply pipeline of the air conditioner and sends the atomized mixed gas into the cabin through a blower.
As shown in fig. 4, the working flow of another humidity self-regulating system provided by the present application is as follows:
s1: turning on an air conditioning system, pressing a humidifying button, and starting a humidity self-adjusting system;
s2: opening a shutoff stop valve, and opening a gas pressure regulating valve to enable high-temperature and high-pressure gas at the outlet of the air compressor to enter an exhaust box;
s3: adjusting the opening of the air pressure adjusting valve to enable the pressure of the exhaust box to be within a first preset pressure range;
s4: acquiring an actual measurement temperature value acquired by an external temperature detector and an actual measurement humidity value in a cabin, and acquiring a humidity target value based on the actual measurement temperature value;
s5: adjusting the opening of a humidity adjusting valve based on the humidity target value and the actually-measured humidity value to ensure that the humidity of the cabin reaches the humidity target value;
s6: under the condition that the opening of the humidity regulating valve is fixed (when the opening is in a non-0 state), the opening of the air pressure regulating valve and the rotating speed of the water pump are regulated on the basis of the pressure value collected by the second pressure detector, and the front pressure of the atomizer is ensured to be within a second preset pressure range;
s7: the mixed gas is atomized by the atomizer, sprayed into an air supply pipeline of the air conditioner and sent into the cabin by the blower.
The humidity self-regulating system that this application provided has following advantage: the humidity of the cabin can be adaptively adjusted according to the ambient temperature and humidity, and a closed-loop control strategy is adopted to maintain the humidity of the cabin in a comfortable range of a human body; the humidity control is executed by the system, so that errors generated in the manual control process can be avoided, and the control precision is high; the atomization effect is good, no large-particle liquid water drops exist, and meanwhile, the humidification device has the characteristics of high humidification efficiency, low noise, long service life and the like; the supply of atomized air is realized by adopting an air outlet pipeline of the vehicle-mounted air conditioner, air humidification can be realized at each air outlet, and the phenomenon of uneven humidity distribution in the whole cabin is avoided.
Compared with the existing after-sale humidifier adding technology, the fuel cell discharging waste water is adopted, water does not need to be added externally, the high safety performance is achieved under the condition that water is not boiled to be dry, meanwhile, the problems that the after-sale humidifier adding water tank is limited in volume and inconvenient to add water are solved, the fuel cell discharging waste water does not need to be added externally, water supply is continuous, and convenience is improved.
To sum up, the humidity self-regulating system for fuel cell car that this application provided is through regarding the tail gas that produces fuel cell as the source, based on the temperature outside the car and the interior humidity of passenger cabin, self-adaptation ground adjusts humidity control valve's aperture, changes mist's humidity to the realization is to the humidity self-adjustment in the passenger cabin, has improved humidity control's accuracy nature, maintains passenger cabin humidity at the comfortable within range of human body.
In a second aspect, embodiments of the present invention provide a humidity self-adjustment method for a fuel cell vehicle. Specifically, as shown in fig. 5, the humidity self-adjusting method includes the following steps S101 to S102.
Step S101, acquiring an actual measurement temperature value collected by the external temperature detector and an actual measurement humidity value collected by the cabin humidity detector;
and S102, adjusting the opening of the humidity adjusting valve based on the measured temperature value and the measured humidity value.
The specific implementation process may refer to corresponding descriptions in the system embodiment provided in the first aspect, and details are not described here.
In an optional embodiment, the controlling the opening degree of the humidity control valve based on the measured temperature value and the measured humidity value includes:
determining a humidity target value of the vehicle cabin based on the measured temperature value and a preset corresponding relation, wherein the preset corresponding relation is the corresponding relation between the temperature value and the humidity target value;
and adjusting the opening degree of the humidity adjusting valve based on the deviation between the humidity target value and the actually measured humidity value.
In an optional embodiment, before obtaining the measured temperature value collected by the external temperature detector and the measured humidity value collected by the cabin humidity detector, the method further includes:
opening an air pressure regulating valve;
collecting a pressure value at a pipeline between the air pressure regulating valve and a water inlet of the drainage tank and a gas inlet of the exhaust tank to obtain a first pressure value;
adjusting the opening degree of the air pressure adjusting valve based on the first pressure value, so that the first pressure value is in a first preset pressure range;
after controlling the opening degree of the humidity regulating valve, the method further comprises the following steps:
acquiring a second pressure value acquired by a second pressure detector;
and adjusting the opening degree of the air pressure adjusting valve based on the second pressure value, so that the pressure of the mixed gas flowing out of the output port of the humidity adjusting valve is within a second preset pressure range.
The implementation principle and the generated technical effect of the humidity self-adjusting method for the fuel cell vehicle provided by the embodiment of the invention are the same as those of the system embodiment, and for the sake of brief description, the corresponding contents in the system embodiment can be referred to where the method embodiment is not mentioned in part.
As will be appreciated by one skilled in the art, embodiments of the present invention may be provided as a method, system, or computer program product. Accordingly, the present invention may take the form of an entirely hardware embodiment, an entirely software embodiment or an embodiment combining software and hardware aspects. Furthermore, the present invention may take the form of a computer program product embodied on one or more computer-usable storage media (including, but not limited to, disk storage, CD-ROM, optical storage, and the like) having computer-usable program code embodied therein.
The present invention has been described with reference to flowchart illustrations and/or block diagrams of methods, apparatus (systems), and computer program products according to embodiments of the invention. It will be understood that each flow and/or block of the flow diagrams and/or block diagrams, and combinations of flows and/or blocks in the flow diagrams and/or block diagrams, can be implemented by computer program instructions. These computer program instructions may be provided to a processor of a general purpose computer, special purpose computer, embedded processor, or other programmable data processing apparatus to produce a machine, such that the instructions, which execute via the processor of the computer or other programmable data processing apparatus, create means for implementing the functions specified in the flowchart flow or flows and/or block diagram block or blocks.
These computer program instructions may also be stored in a computer-readable memory that can direct a computer or other programmable data processing apparatus to function in a particular manner, such that the instructions stored in the computer-readable memory produce an article of manufacture including instruction means which implement the function specified in the flowchart flow or flows and/or block diagram block or blocks.
These computer program instructions may also be loaded onto a computer or other programmable data processing apparatus to cause a series of operational steps to be performed on the computer or other programmable apparatus to produce a computer implemented process such that the instructions which execute on the computer or other programmable apparatus provide steps for implementing the functions specified in the flowchart flow or flows and/or block diagram block or blocks.
While preferred embodiments of the present invention have been described, additional variations and modifications in those embodiments may occur to those skilled in the art once they learn of the basic inventive concepts. Therefore, it is intended that the appended claims be interpreted as including preferred embodiments and all such alterations and modifications as fall within the scope of the invention.
It will be apparent to those skilled in the art that various changes and modifications may be made in the present invention without departing from the spirit and scope of the invention. Thus, if such modifications and variations of the present invention fall within the scope of the claims of the present invention and their equivalents, the present invention is also intended to include such modifications and variations.
Claims (10)
1. A humidity self-regulating system for a fuel cell vehicle, comprising: the tail gas mixed exhaust subsystem, the humidity adjusting subsystem and the air-conditioning air supply subsystem;
the tail gas mixed exhaust subsystem comprises a gas-liquid separator, a water drainage tank and an exhaust tank, wherein an input port of the gas-liquid separator is communicated with a tail gas output port of the fuel cell, a first output port of the gas-liquid separator is communicated with a water inlet of the water drainage tank, and a second output port of the gas-liquid separator is communicated with a gas inlet of the exhaust tank through a pipeline;
the humidity adjusting subsystem comprises a humidity controller, a humidity adjusting valve, an outside temperature detector and a cabin humidity detector, wherein a first input port of the humidity adjusting valve is communicated with a water outlet of the water drainage box through a pipeline, a second input port of the humidity adjusting valve is communicated with an exhaust port of the exhaust box through a pipeline, an output port of the humidity adjusting valve is communicated with an air inlet of the air conditioning air supply subsystem through a pipeline, and the humidity controller is respectively connected with a control end of the humidity adjusting valve, the outside temperature detector and the cabin humidity detector;
the humidity controller is used for adjusting the opening of the humidity adjusting valve based on the actually measured temperature value acquired by the outside temperature detector and the actually measured humidity value acquired by the cabin humidity detector so as to control the mixing ratio of the liquid flowing out of the drainage tank and the gas exhausted from the exhaust tank;
the air-conditioning air supply subsystem is used for sending the mixed gas output from the output port of the humidity adjusting valve into the cabin so as to adjust the air humidity in the cabin.
2. The system of claim 1, wherein the humidity conditioning subsystem further comprises: and the shutoff stop valve is arranged on a connecting pipeline between the humidity regulating valve and the air inlet of the air-conditioning air supply subsystem.
3. The system of claim 1, wherein the system further comprises an air compressor, and wherein the humidity conditioning subsystem further comprises: a gas pressure regulating valve and a first pressure detector;
one end of the air pressure regulating valve is connected with the output end of the air compressor, the other end of the air pressure regulating valve is respectively communicated with the water inlet of the drainage box and the air inlet of the exhaust box through pipelines, and the first pressure detector is arranged on a pipeline between the air pressure regulating valve and the water inlet of the drainage box and the air inlet of the exhaust box and is used for collecting an air pressure value at the pipeline to obtain a first pressure value;
the control end of the air pressure regulating valve and the first pressure detector are both connected with the humidity controller, and the humidity controller is used for regulating the opening degree of the air pressure regulating valve based on the first pressure value, so that the first pressure value is in a first preset pressure range.
4. The system of claim 3, wherein the humidity conditioning subsystem further comprises: the second pressure detector is arranged between the humidity regulating valve and an air inlet of the air-conditioning air supply subsystem and is used for collecting the pressure value of the mixed gas flowing out of an output port of the humidity regulating valve to obtain a second pressure value;
the control end of the second pressure detector is connected with the humidity controller, and the humidity controller is used for adjusting the opening degree of the air pressure adjusting valve based on the second pressure value, so that the pressure of the mixed gas flowing out of the output port of the humidity adjusting valve is within a second preset pressure range.
5. The system of claim 1, wherein the system further comprises an air compressor, and wherein the humidity conditioning subsystem further comprises: the system comprises an air pressure regulating valve, a first pressure detector, a second pressure detector, a water pump and a three-way valve;
one end of the air pressure regulating valve is connected with the output end of the air compressor, the other end of the air pressure regulating valve is respectively communicated with the air inlet of the exhaust box through a pipeline, and the first pressure detector is arranged on the pipeline between the air pressure regulating valve and the air inlet of the exhaust box and used for collecting the air pressure value at the pipeline to obtain a first pressure value;
the control end of the air pressure regulating valve and the first pressure detector are both connected with the humidity controller, and the humidity controller is used for regulating the opening degree of the air pressure regulating valve based on the first pressure value so that the first pressure value is in a first preset pressure range;
the input end of the water pump is communicated with the water outlet of the water drainage tank through a pipeline, the output end of the water pump is communicated with the first input port of the three-way valve, the second input port of the three-way valve is communicated with the water inlet of the water drainage tank, the output port of the three-way valve is communicated with the first input port of the humidity regulating valve, and the second pressure detector is arranged between the humidity regulating valve and the air inlet of the air-conditioning air supply subsystem and is used for collecting the pressure value of the mixed gas flowing out of the output port of the humidity regulating valve to obtain a second pressure value;
the control end of the water pump, the control end of the second pressure detector and the humidity controller are connected, the humidity controller is further used for adjusting the opening degree of the air pressure adjusting valve and the rotating speed of the water pump based on the second pressure value, so that the pressure of mixed gas flowing out of the output port of the humidity adjusting valve is within a second preset pressure range.
6. The system of claim 1, wherein the exhaust gas co-emission subsystem further comprises: a water level detector disposed in the drain tank, the water level detector for detecting a water level of the drain tank;
the water level detector is connected with the humidity controller, and the humidity controller is further used for: and if the water level is detected to be lower than the preset water level, sending out a water level abnormity prompt.
7. The system of claim 1, wherein the humidity conditioning subsystem further comprises: the atomizer, the input port of atomizer with the delivery outlet of humidity control valve is connected, the delivery outlet of atomizer with the air inlet of air conditioner air supply subsystem passes through the pipeline intercommunication, the atomizer is used for the follow the mist that humidity control valve flows out disperses to the mist after will dispersing sprays into air conditioner air supply subsystem.
8. A self-regulation method for a fuel cell vehicle, which is applied to the humidity self-regulation system according to any one of claims 1 to 7, the method comprising:
acquiring an actual measurement temperature value acquired by the external temperature detector and an actual measurement humidity value acquired by the cabin humidity detector;
and adjusting the opening degree of the humidity adjusting valve based on the actually measured temperature value and the actually measured humidity value.
9. The method of claim 8, wherein said controlling the opening of the humidity adjustment valve based on the measured temperature value and the measured humidity value comprises:
determining a humidity target value of the vehicle cabin based on the measured temperature value and a preset corresponding relation, wherein the preset corresponding relation is the corresponding relation between the temperature value and the humidity target value;
and adjusting the opening of the humidity adjusting valve based on the deviation between the humidity target value and the actually measured humidity value.
10. The method of claim 8, further comprising, prior to obtaining the measured temperature value collected by the off-board temperature detector and the measured humidity value collected by the cabin humidity detector:
opening an air pressure regulating valve;
collecting a pressure value at a pipeline between the air pressure regulating valve and a water inlet of the drainage tank and a gas inlet of the exhaust tank to obtain a first pressure value;
adjusting the opening degree of the air pressure adjusting valve based on the first pressure value, so that the first pressure value is in a first preset pressure range;
after controlling the opening degree of the humidity regulating valve, the method further comprises the following steps:
acquiring a second pressure value acquired by a second pressure detector;
and adjusting the opening degree of the air pressure adjusting valve based on the second pressure value, so that the pressure of the mixed gas flowing out of the output port of the humidity adjusting valve is within a second preset pressure range.
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| CN202210300206.0A CN114734788A (en) | 2022-03-25 | 2022-03-25 | Humidity self-adjusting system and method for fuel cell vehicle |
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| CN202210300206.0A CN114734788A (en) | 2022-03-25 | 2022-03-25 | Humidity self-adjusting system and method for fuel cell vehicle |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115318046A (en) * | 2022-10-17 | 2022-11-11 | 江苏源氢新能源科技股份有限公司 | Anode steam-water separation device of fuel cell system |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115318046A (en) * | 2022-10-17 | 2022-11-11 | 江苏源氢新能源科技股份有限公司 | Anode steam-water separation device of fuel cell system |
| CN115318046B (en) * | 2022-10-17 | 2022-12-23 | 江苏源氢新能源科技股份有限公司 | Anode steam-water separation device of fuel cell system |
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