CN112677732A - Control method and device of vehicle air conditioning system - Google Patents
Control method and device of vehicle air conditioning system Download PDFInfo
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- CN112677732A CN112677732A CN202011599937.7A CN202011599937A CN112677732A CN 112677732 A CN112677732 A CN 112677732A CN 202011599937 A CN202011599937 A CN 202011599937A CN 112677732 A CN112677732 A CN 112677732A
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- 238000004378 air conditioning Methods 0.000 title claims abstract description 132
- 238000000034 method Methods 0.000 title claims abstract description 46
- 238000007791 dehumidification Methods 0.000 claims abstract description 103
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 28
- 238000010438 heat treatment Methods 0.000 claims description 22
- 238000001816 cooling Methods 0.000 claims description 17
- 230000007423 decrease Effects 0.000 claims 1
- 230000008569 process Effects 0.000 abstract description 12
- 230000004044 response Effects 0.000 abstract description 4
- 230000002035 prolonged effect Effects 0.000 abstract description 3
- 238000005057 refrigeration Methods 0.000 description 17
- 230000001276 controlling effect Effects 0.000 description 6
- 230000002349 favourable effect Effects 0.000 description 6
- 238000004891 communication Methods 0.000 description 4
- 238000007664 blowing Methods 0.000 description 3
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- 239000003507 refrigerant Substances 0.000 description 2
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- 238000010586 diagram Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
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- 230000006872 improvement Effects 0.000 description 1
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- 230000004048 modification Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 239000010726 refrigerant oil Substances 0.000 description 1
- 230000001105 regulatory effect Effects 0.000 description 1
- 230000000630 rising effect Effects 0.000 description 1
- 238000009491 slugging Methods 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
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Abstract
The invention provides a control method and device of an air conditioning system for a vehicle. The control method comprises the following steps: acquiring a trigger signal of a dehumidification key, and acquiring the current working state of the vehicle air conditioning system in response to the trigger signal; when the vehicle air conditioning system is currently in a non-dehumidification mode, controlling the starting of a compressor of the vehicle air conditioner, switching an internal and external circulation air door of the vehicle air conditioning system to an internal circulation position, and adjusting the opening degree of a cold and warm air door of the vehicle air conditioning system to a mixed air ratio of cold air and warm air of 7: 3. the control device includes: the dehumidification key is used for starting or closing the dehumidification mode of the vehicle air conditioning system in a one-key mode; and the controller is used for executing the control method. The vehicle air conditioning system provided by the invention can realize the dehumidification of the air in the vehicle body, and meanwhile, the frequent start and stop of the compressor in the dehumidification process are avoided, so that the service life of the compressor is favorably prolonged, and the comfort of passengers is favorably improved.
Description
Technical Field
The invention relates to the field of vehicle technology, in particular to a control method and a control device of an air conditioning system for a vehicle.
Background
The vehicle air conditioner is a device for refrigerating, heating, ventilating, purifying air and the like of air in a carriage, and can provide a comfortable riding environment for passengers, reduce the fatigue strength of a driver and improve the driving safety. With the continuous improvement of living standard of people, people put forward higher requirements on the functionality and comfort level of the automobile air conditioner.
In the prior art, in the dehumidification of the air conditioner for the vehicle, air in the vehicle passes through a refrigeration system, so that water vapor in the air is liquefied into condensed water by the refrigeration system and then discharged to the outside.
However, in the conventional air conditioner for a vehicle, the fan is always operated at a low speed in the control mode. The compressor is provided with a low-pressure protection function with too low evaporation temperature, which can lead the refrigeration system to carry out refrigeration circulation discontinuously, thereby ensuring that the air outlet temperature is not too low to bring about compressor liquid impact, and achieving the purpose of controlling humidity. Compressor slugging refers to the phenomenon of damage to the compressor when liquid refrigerant or lubricating oil is drawn into the compressor cylinder with the gas. This results in frequent start-stop of the compressor of the refrigeration system during the entire control process, which leads to a reduction in the service life of the compressor.
Disclosure of Invention
The invention provides a control method and a control device of an air conditioning system for a vehicle, which are used for solving the technical problem that the service life of a compressor is influenced by frequent start and stop of the compressor caused by dehumidification of an air conditioner for the vehicle in the prior art.
The invention provides a control method of a vehicle air conditioning system, which comprises the following steps:
acquiring a trigger signal of a dehumidification key, wherein the dehumidification key is used for starting or closing a dehumidification mode of the vehicle air conditioning system in a one-key mode;
responding to the signal, and acquiring the current working state of the vehicle air conditioning system;
when the vehicle air-conditioning system is currently in a non-dehumidification mode, controlling a compressor of the vehicle air-conditioning system to start, switching an internal circulation air door and an external circulation air door of the vehicle air-conditioning system to an internal circulation position, and adjusting the opening degree of a cold-warm air door of the vehicle air-conditioning system to a mixed air ratio of cold air and warm air of 7: 3.
in one implementation, the method further comprises:
acquiring the temperature of an engine water tank;
and when the temperature of the water tank is greater than or equal to a preset threshold value, the opening degree of the cold and warm air door is reduced.
In one implementation, the predetermined threshold is 75 ℃ to 78 ℃.
In one implementation manner, the adjusting the opening degree of the cooling and heating air door to be smaller specifically includes:
and (3) reducing the opening degree of the cold and warm air door to a mixed air ratio of cold air to warm air of 4: 1.
in one implementation, the method further comprises:
adjusting the air supply direction of a mode air door of the vehicle air conditioning system so as to supply air to the face of a driver; and/or the presence of a gas in the gas,
and when the vehicle air conditioning system is currently in a dehumidification mode, switching the vehicle air conditioning system from the dehumidification mode to a previous working mode.
A control device of an air conditioning system for a vehicle, comprising:
the dehumidification key is used for starting or closing the dehumidification mode of the vehicle air conditioning system in a one-key mode;
the controller is used for acquiring a trigger signal of the dehumidification key and responding to the signal to acquire the current working state of the vehicle air conditioning system;
when the vehicle air-conditioning system is currently in a non-dehumidification mode, the controller is further configured to control the compressor of the vehicle air-conditioning system to start, switch an internal and external circulation air door of the vehicle air-conditioning system to an internal circulation position, and adjust the opening degree of the cooling and heating air door of the vehicle air-conditioning system to a mixing ratio of cold air to hot air of 7: 3.
in one implementation, the controller is further configured to:
acquiring the temperature of an engine water tank;
and when the temperature of the water tank is greater than or equal to a preset threshold value, the opening degree of the cold and warm air door is reduced.
In one implementation, the predetermined threshold is 75 ℃ to 78 ℃.
In one implementation manner, the adjusting the opening degree of the cooling and heating air door by the controller specifically includes:
and (3) reducing the opening degree of the cold and warm air door to a mixed air ratio of cold air to warm air of 4: 1.
in one implementation, the controller is further configured to:
adjusting the air supply direction of a mode air door of the vehicle air conditioning system so as to supply air to the face of a driver; and/or the presence of a gas in the gas,
and when the vehicle air conditioning system is currently in a dehumidification mode, switching the vehicle air conditioning system from the dehumidification mode to a previous working mode.
The invention provides a control method and device of an air conditioning system for a vehicle. The control method comprises the following steps: acquiring a trigger signal of a dehumidification key, wherein the dehumidification key is used for starting or closing a dehumidification mode of the vehicle air conditioning system in a one-key mode; responding to the signal, and acquiring the current working state of the vehicle air conditioning system; when the vehicle air-conditioning system is currently in a non-dehumidification mode, controlling a compressor of the vehicle air-conditioning system to start, switching an internal circulation air door and an external circulation air door of the vehicle air-conditioning system to an internal circulation position, and adjusting the opening degree of a cold-warm air door of the vehicle air-conditioning system to a mixed air ratio of cold air and warm air of 7: 3. according to the invention, the start and stop of the dehumidification mode are controlled by the one-key button, and then the positions of the internal and external circulation air doors and the opening degrees of the cold and warm air doors are regulated, so that the compressor can be prevented from being frequently started and stopped in the dehumidification process while the indoor air is dehumidified, the service life of the compressor can be prolonged, and the comfort of passengers in the vehicle can be improved.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below, and it is obvious that the drawings in the following description are only some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to these drawings without creative efforts.
Fig. 1 is a flowchart illustrating a method for controlling an air conditioning system for a vehicle according to an embodiment of the present invention;
fig. 2 is a flowchart of another control method for an air conditioning system of a vehicle according to an embodiment of the present invention;
fig. 3 is a flowchart illustrating a control method of a further air conditioning system for a vehicle according to an embodiment of the present invention;
fig. 4 is a schematic structural diagram of a control device of an air conditioning system for a vehicle according to an embodiment of the present invention.
Reference numerals:
10-control means of the vehicle air conditioning system; 11-a dehumidification button; 12-a controller; 21-a compressor; 22-cold and warm air door; 23-internal and external circulation air door; 24-mode damper.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
For a clear understanding of the technical solutions of the present application, a detailed description of the prior art solutions is first provided.
The vehicle air conditioner is a device for refrigerating, heating, ventilating, purifying air and the like of air in a carriage, and can provide a comfortable riding environment for passengers, reduce the fatigue strength of a driver and improve the driving safety. In the prior art, in the dehumidification of the air conditioner for the vehicle, air in the vehicle passes through a refrigeration system, so that water vapor in the air is liquefied into condensed water by the refrigeration system and then discharged to the outside. However, in the control mode of the conventional air conditioner for vehicles, the fan of the conventional air conditioner is always operated at a low speed, and the refrigeration system performs the refrigeration cycle intermittently to liquefy the water vapor in the air, thereby achieving the purpose of control. Therefore, in the whole control process, the compressor of the refrigeration system is frequently started and stopped for preventing the liquid impact phenomenon, and the service life of the compressor is reduced.
In view of the above, the present invention provides a control method of an air conditioning system for a vehicle and an apparatus for performing the control method. The control method comprises the following steps: acquiring a trigger signal of a dehumidification key, wherein the dehumidification key is used for starting or closing a dehumidification mode of the vehicle air conditioning system in a one-key mode; responding to the signal, and acquiring the current working state of the vehicle air conditioning system; when the vehicle air conditioning system is currently in a non-dehumidification mode, controlling the starting of a compressor of the vehicle air conditioner, switching an internal and external circulation air door of the vehicle air conditioning system to an internal circulation position, and adjusting the opening degree of a cold and warm air door of the vehicle air conditioning system to a mixed air ratio of cold air and warm air of 7: 3. by the control method, the dehumidification of the air in the vehicle body can be realized, the compressor is prevented from being started and stopped frequently in the dehumidification process, the service life of the compressor is prolonged, and the comfort of passengers in the vehicle is improved.
The technical solution of the present invention will be described in detail below with specific examples. The following several specific embodiments may be combined with each other, and details of the same or similar concepts or processes may not be repeated in some embodiments. Embodiments of the present invention will be described below with reference to the accompanying drawings.
Fig. 1 is a flowchart of a control method of an air conditioning system for a vehicle according to an embodiment of the present invention. The control method of the air conditioning system for the vehicle provided by the embodiment includes the following steps:
s101, acquiring a trigger signal of a dehumidification key, wherein the dehumidification key is used for starting or closing a dehumidification mode of the vehicle air conditioning system in a one-key mode.
In this embodiment, acquire the trigger signal of dehumidification button, the dehumidification button is used for the dehumidification mode that a key formula starts or closes vehicle air conditioning system, and the dehumidification button is connected with vehicle air conditioning system communication.
When the occupant desires to dehumidify or stop dehumidifying the truck cabin, he or she may depress a one-button dehumidification button. Illustratively, the one-button dehumidification button may be disposed on the console, and may be, for example, a mechanical button, a touch button, or a voice-activated button.
And S102, responding to the signal, and acquiring the current working state of the vehicle air conditioning system.
And after acquiring the trigger signal of the one-button dehumidification button, the controller starts to acquire the current working state of the vehicle air conditioning system. When the air conditioning system is currently in a dehumidification mode, the controller calls a pre-stored instruction or instruction set for closing the dehumidification mode in response to the detected working state, and the dehumidification mode is closed; when the air conditioning system is currently in the non-dehumidification mode, the controller invokes a pre-stored instruction or set of instructions to initiate the dehumidification mode and controls one or more actuators in the vehicle air conditioning system to execute corresponding instructions to remove moisture from the truck cabin. For example, the controller may control the operation of a compressor, a cooling and heating damper, etc., as will be described in more detail below.
Specifically, the Controller may obtain a current operating state of the vehicle air conditioning system from a Controller Area Network (CAN) bus Network of the vehicle.
S103, when the vehicle air conditioning system is in a non-dehumidification mode currently, controlling a compressor of the vehicle air conditioner to start.
In this embodiment, when the vehicle air conditioning system is currently in the non-dehumidification mode, the dehumidification key is used to start the dehumidification mode. The air conditioning system for the vehicle comprises a compressor, wherein the compressor is used for converting a refrigerant from a low-pressure gas state into a high-pressure gas state and providing power for the circulation of the refrigerant, so that the air conditioning system in the vehicle can carry out refrigeration circulation, and moist air is condensed into water after entering the air conditioning system and then is discharged out of the vehicle body. Therefore, after the vehicle air conditioning system starts the dehumidification mode, the compressor needs to be started, so that the compressor always keeps in a working state, the refrigeration system keeps working in the dehumidification process, the comfort of passengers is improved, the compressor can be prevented from being started and stopped frequently, and the service life of the compressor is further influenced.
And S104, switching an internal and external circulation air door of the vehicle air conditioning system to an internal circulation position.
In this embodiment, after the compressor of the vehicle air conditioner is started, the circulation mode of the vehicle air conditioner needs to be switched to the internal circulation mode. The internal circulation mode is that the air in the vehicle is heated or cooled in the vehicle and then is sent back to the vehicle, and further the exchange of the air in the vehicle and the air outside the vehicle is prevented. Under the internal circulation mode, moisture in the vehicle interior gas can be discharged to the outside in the form of condensed water after being refrigerated, so that the moisture content of the vehicle interior gas is reduced, and the aim of dehumidifying the vehicle interior gas is fulfilled. In addition, in the internal circulation mode, moisture outside the vehicle can be prevented from entering the vehicle, and the dehumidification effect is further influenced.
Specifically, the internal and external circulation air doors of the vehicle air conditioning system can be used for switching the circulation mode of the air conditioning system, and the internal and external circulation air doors can be provided with a servo motor for driving the opening degree of the air doors, so that the internal and external circulation air doors are driven by the servo motor to be switched to the internal circulation position.
S105, adjusting the opening degree of a cold and warm air door of the vehicle air conditioning system to the condition that the mixed air ratio of cold air and warm air is 7: 3.
in this embodiment, the vehicle air conditioning system further includes a cooling and heating air door, and the cooling and heating air door is used for adjusting the mixing ratio of the air volume passing through the cooling and heating heat exchanger, and further adjusts the air outlet temperature of the cooling and heating air door by adjusting the opening degree of the cooling and heating air door. Adjusting the opening degree of the cold and warm air door until the mixed air ratio of cold air and warm air is 7: 3, can stabilize the air-out temperature of changes in temperature air door at certain comfortable interval, be favorable to the wind temperature can not appear obviously changing in the switching period of opening or closing of dehumidification mode to further improve vehicle air conditioning system's dehumidification effect, still be favorable to improving crew's comfort.
Specifically, the cooling and heating air door of the vehicle air conditioning system may be mounted with a servo motor for driving the opening degree of the air door, so that the cooling and heating air door is driven by the servo motor thereof to adjust the position of the air door.
The control method for the vehicle air conditioning system provided by the embodiment can acquire the trigger signal of the dehumidification button, and in response to the trigger signal, acquire the current working state of the vehicle air conditioning system. When the vehicle air conditioning system is currently in a non-dehumidification mode, starting the compressor, switching the vehicle air conditioning system to an internal circulation position, and adjusting the opening degree of a cold and warm air door of the vehicle air conditioning system to the mixed air ratio of cold air and warm air of 7: 3 to not only can realize the dehumidification to the interior air of car, the compressor is in the on-state and frequent opening and stop moreover always, is favorable to prolonging the life of compressor, improves passenger's comfort simultaneously.
Fig. 2 is another control method of an air conditioning system for a vehicle according to an embodiment of the present invention. The steps in fig. 2 are the same as those in fig. 1, and are not described herein again, which can be referred to above specifically. The different steps of fig. 2 are described below in order to better understand the solution of the present embodiment.
And S206, acquiring the temperature of the engine water tank.
In this embodiment, the vehicle air conditioning system further includes a temperature sensor for acquiring a temperature in the engine water tank. The temperature of the water tank of the engine rises, which can lead to the rising of the air outlet temperature, and further influences the air outlet temperature of the cold and warm air door.
And S207, when the temperature of the water tank is greater than or equal to a preset threshold value, reducing the opening degree of the cold and warm air door.
In this embodiment, the air mixing ratio between the cold air door and the warm air door is adjusted to 7: after 3, when the temperature of water tank is more than or equal to the preset threshold value, the stability of air-out temperature can be guaranteed in the aperture of cold-warm air door is transferred and is reduced to further promote crew's travelling comfort, still be favorable to the compressor and keep the start-up state at the dehumidification in-process, thereby prolong the life of compressor.
Optionally, the preset threshold is 75 ℃ to 78 ℃. The temperature sensor can set the hysteresis temperature to be 0-3 ℃, so that the opening of the cold and warm air door can be adjusted when the temperature of the water tank is greater than or equal to the preset threshold value, and frequent actions of the cold and warm air door due to temperature fluctuation of the water tank are prevented.
Optionally, the adjusting the opening degree of the cooling and heating air door to be smaller specifically includes: and (3) reducing the opening degree of the cold and warm air door until the mixed air ratio of cold air and warm air is 4: 1. so as to further stabilize the outlet air temperature of the air heating port and be beneficial to the compressor to keep the starting state in the dehumidification process, thereby further prolonging the service life of the compressor.
According to the control method of the vehicle air conditioning system, the temperature of the engine water tank is further obtained, so that the opening degree of the cold and warm air door can be adjusted according to the water temperature, and the comfort degree of drivers and passengers is improved.
Fig. 3 is a control method of another vehicle air conditioning system according to an embodiment of the present invention. The steps in fig. 3 are the same as those in fig. 2, and are not described herein again, which can be referred to above specifically. The different steps of fig. 3 are described below in order to better understand the solution of the present embodiment.
And S313, adjusting the air supply direction of a mode air door of the vehicle air conditioning system so as to supply air to the face of the driver and the passenger.
When the vehicle air conditioning system is currently in the non-dehumidification mode, the compressor is started, and the vehicle air conditioning system is switched to the internal circulation position, so that the dehumidification effect of the vehicle air conditioning system is achieved.
Alternatively, in order to improve the comfort of the driver and passengers in the dehumidification mode, the vehicle air conditioning system blows air to the face of the driver and passengers. The vehicle air conditioning system further comprises a mode air door, the mode air door is used for switching the air supply mode by adjusting the air supply angle of the mode air door, and when the mode air door adjusts the air supply angle of the mode air door and faces the face of a driver and passengers, the mode air door can be switched to the face blowing mode. So as to extend the blowing distance.
Specifically, the mode damper of the air conditioning system for vehicles may be mounted with a servo motor for driving the angle of the damper so as to adjust the angle of the damper by driving the mode damper with its servo motor.
And S321, when the vehicle air conditioning system is currently in the dehumidification mode, switching the vehicle air conditioning system from the dehumidification mode to a previous working mode.
When the vehicle air-conditioning system is currently in the dehumidification mode, the dehumidification button is used for one-button closing of the dehumidification mode, and the vehicle air-conditioning system is switched to the previous working mode from the dehumidification mode, so that a driver and a passenger can close the dehumidification mode at any time, and the previous air-conditioning working state can be adjusted in time. For example, after the vehicle air conditioning system enters the third-gear refrigeration mode from the first-gear refrigeration mode, the vehicle air conditioning system is switched to the current dehumidification mode, and after the current dehumidification mode is turned off, the vehicle air conditioning system returns to the third-gear refrigeration mode again instead of returning to the first-gear refrigeration mode by skipping the third-gear refrigeration mode or switching to other modes.
According to the control method of the vehicle air conditioning system, the comfort level of drivers and passengers can be improved by adjusting the air supply direction of the mode air door to be the face blowing mode. In addition, the vehicle air conditioning system is switched to the previous working mode after the current dehumidification mode is closed, so that the air conditioner does not need to be adjusted by a driver, and the reduction of the operation of the driver is facilitated.
Fig. 4 is a control device of an air conditioning system for a vehicle according to an embodiment of the present invention. As shown in fig. 4, the control device includes a dehumidifying button 11 and a controller 12. The dehumidification button 11 is used to one-click start or stop a dehumidification mode of the vehicle air conditioning system. The controller 12 is in communication connection with the dehumidification button 11, and is configured to obtain a trigger signal of the dehumidification button 11, and obtain a current operating state of the vehicle air conditioning system in response to the trigger signal.
The dehumidification button 11 may be provided on an air conditioning control panel of the automobile. Specifically, the dehumidification button 11 may be disposed at a left knob position that facilitates blind manipulation by the driver.
The controller 12 may be in communication connection with the compressor 21, the inside and outside circulation damper 23, and the cooling and heating damper 22 through a CAN bus, so that the controller 12 CAN control the above components to perform corresponding operations.
When the vehicle air conditioning system is currently in the non-dehumidification mode, the controller 12 is further configured to control the compressor 21 of the vehicle air conditioner to start, switch the internal and external circulation damper 23 of the vehicle air conditioning system to the internal circulation position, and adjust the opening degree of the cold and warm damper 22 of the vehicle air conditioning system to a mixed ratio of the cold air and the warm air of 7: 3. that is, the controller 12 is used to switch the vehicle air conditioning system to the dehumidification mode and adjust the position of the cool/warm air door 22 so as to enhance the comfort of the driver and the passenger.
Optionally, the controller 12 is also used to obtain the temperature of the engine water tank.
When the temperature of the water tank is greater than or equal to the preset threshold value, the opening degree of the cold and warm air door 22 is adjusted to be small. So as to further promote passenger's travelling comfort, can also avoid compressor 21 frequently to open and stop in dehumidification process to prolong compressor 21's life.
Optionally, the preset threshold is 75 ℃ to 78 ℃. So as to prevent frequent actions of the air heating damper due to the fluctuation of the temperature of the water tank.
Optionally, the adjusting the opening degree of the cooling/heating air door 22 by the controller 12 specifically includes: the opening degree of the cold and warm air door 22 is reduced to 4: 1. so as to further stabilize the air outlet temperature of the air heating port and prevent the air outlet temperature from obviously changing to influence the comfort of drivers and passengers.
Optionally, the controller 12 is also used to adjust the air supply angle of the mode damper 24 of the vehicle air conditioning system to supply air to the face of the occupant; and/or when the vehicle air conditioning system is currently in the dehumidification mode, switching the vehicle air conditioning system from the dehumidification mode to the previous working mode.
The controller 12 may be communicatively coupled to the mode damper 24 such that the controller 12 controls the mode damper 24 to switch to the blow-by mode to further enhance occupant comfort during the dehumidification process.
The controller 12 may also be used to turn off the dehumidification mode and switch to the previous operation mode, which is beneficial for the driver and passengers to change the operation state of the vehicle air conditioning system in real time as required.
The control device is favorable for realizing dehumidification of air in the vehicle, is favorable for prolonging the service life of the compressor and improving the practicability and economy of the whole vehicle.
It is obvious to those skilled in the art that, for convenience and simplicity of description, the foregoing division of the functional modules is merely used as an example, and in practical applications, the above function distribution may be performed by different functional modules according to needs, that is, the internal structure of the device is divided into different functional modules to perform all or part of the above described functions. For the specific working process of the device described above, reference may be made to the corresponding process in the foregoing method embodiment, which is not described herein again.
Finally, it should be noted that: the above embodiments are only used to illustrate the technical solution of the present invention, and not to limit the same; while the invention has been described in detail and with reference to the foregoing embodiments, it will be understood by those skilled in the art that: the technical solutions described in the foregoing embodiments may still be modified, or some or all of the technical features may be equivalently replaced; and the modifications or the substitutions do not make the essence of the corresponding technical solutions depart from the scope of the technical solutions of the embodiments of the present invention.
Claims (10)
1. A control method of an air conditioning system for a vehicle, comprising:
acquiring a trigger signal of a dehumidification key, wherein the dehumidification key is used for starting or closing a dehumidification mode of the vehicle air conditioning system in a one-key mode;
responding to the signal, and acquiring the current working state of the vehicle air conditioning system;
when the vehicle air-conditioning system is currently in a non-dehumidification mode, controlling a compressor of the vehicle air-conditioning system to start, switching an internal circulation air door and an external circulation air door of the vehicle air-conditioning system to an internal circulation position, and adjusting the opening degree of a cold-warm air door of the vehicle air-conditioning system to a mixed air ratio of cold air and warm air of 7: 3.
2. the control method according to claim 1, characterized by further comprising:
acquiring the temperature of an engine water tank;
and when the temperature of the water tank is greater than or equal to a preset threshold value, the opening degree of the cold and warm air door is reduced.
3. A control method according to claim 2, characterized in that said preset threshold value is 75-78 ℃.
4. The control method according to claim 3, wherein the step of reducing the opening degree of the cooling/heating air door specifically includes:
and (3) reducing the opening degree of the cold and warm air door to the condition that the mixed air ratio of cold air to warm air is 4: 1.
5. the control method according to any one of claims 1 to 4, characterized by further comprising:
adjusting the air supply direction of a mode air door of the vehicle air conditioning system so as to supply air to the face of a driver; and/or the presence of a gas in the gas,
and when the vehicle air conditioning system is currently in a dehumidification mode, switching the vehicle air conditioning system from the dehumidification mode to a previous working mode.
6. A control device for a vehicle air conditioning system, comprising:
the dehumidification key is used for starting or closing the dehumidification mode of the vehicle air conditioning system in a one-key mode;
the controller is used for acquiring a trigger signal of the dehumidification key and responding to the signal to acquire the current working state of the vehicle air conditioning system;
when the vehicle air-conditioning system is currently in a non-dehumidification mode, the controller is further configured to control the compressor of the vehicle air-conditioning system to start, switch an internal and external circulation air door of the vehicle air-conditioning system to an internal circulation position, and adjust the opening degree of the cooling and heating air door of the vehicle air-conditioning system to a mixing ratio of cold air to hot air of 7: 3.
7. the control device of claim 6, wherein the controller is further configured to:
acquiring the temperature of an engine water tank;
and when the temperature of the water tank is greater than or equal to a preset threshold value, the opening degree of the cold and warm air door is reduced.
8. The control device of claim 7, wherein the predetermined threshold is 75 ℃ to 78 ℃.
9. The dehumidification method according to claim 8, wherein the controller decreases the opening degree of the cooling/heating air door, and specifically comprises:
and (3) reducing the opening degree of the cold and warm air door to the condition that the mixed air ratio of cold air to warm air is 4: 1.
10. the control device of any one of claims 6-9, wherein the controller is further configured to:
adjusting the air supply direction of a mode air door of the vehicle air conditioning system so as to supply air to the face of a driver; and/or the presence of a gas in the gas,
and when the vehicle air conditioning system is currently in a dehumidification mode, switching the vehicle air conditioning system from the dehumidification mode to a previous working mode.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202011599937.7A CN112677732A (en) | 2020-12-29 | 2020-12-29 | Control method and device of vehicle air conditioning system |
Applications Claiming Priority (1)
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