Automobile air conditioner defogging method, defogging device, electronic device, and storage medium
By adjusting the ratio of internal and external air circulation dampers and the air conditioning mode, the problem of fogging on the windshield of automobiles under low-temperature conditions was solved, achieving effective defogging and energy-saving defogging control.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Patents(China)
- Current Assignee / Owner
- Filing Date
- 2023-02-01
- Publication Date
- 2026-04-14
AI Technical Summary
In low-temperature conditions, fogging of the windshield affects driving safety. Existing air conditioning defogging methods are energy-intensive or affect passenger comfort, and the defogging effect is not good.
By obtaining the external air circulation ratio corresponding to the absence of fogging on the car windows, the internal and external air circulation dampers are adjusted. If an external air circulation ratio exists, it is controlled to the minimum external air circulation ratio; otherwise, it is adjusted to full internal circulation and the air conditioning is switched to defogging mode to use the compressor to defog.
It achieves reduced energy consumption and improved passenger comfort while ensuring defogging effect, avoiding increased energy consumption and reduced comfort caused by external air circulation.
Smart Images

Figure CN115973098B_ABST
Abstract
Description
Technical Field
[0001] This application relates to the field of automotive defogging control technology, and in particular to an automotive air conditioning defogging method, defogging device, electronic device and storage medium. Background Technology
[0002] When a car is in low-temperature conditions, the air conditioning is often turned on for heating to ensure passenger comfort. During this process, a significant temperature difference occurs between the inside and outside of the car, causing fogging to easily form on the windshield. If this fog is not cleared promptly, it will affect driving safety.
[0003] In existing technologies, when fogging or a high risk of fogging is detected on the windshield, defogging is mainly achieved through the following two methods: Method 1: The air conditioning system is directly switched to defogging mode, the compressor is activated, and cold air is blown onto the windshield to remove fog. However, the compressor consumes a lot of energy, and the cold air may also affect the driver's comfort. Method 2: The air conditioning system is directly switched to external circulation, increasing the intake of cold outside air to remove fog. However, excessively increasing the intake of cold outside air will cause the interior temperature to drop, reducing passenger comfort, while also increasing the energy consumption of the air conditioning heating system. Furthermore, in cases of severe fogging, simply increasing the intake of cold outside air cannot guarantee a defogging effect. Summary of the Invention
[0004] In order to achieve effective defogging of vehicle windows while taking into account vehicle energy consumption, this application provides a method for defogging vehicle air conditioning, a device for defogging vehicle air conditioning, an electronic device, and a computer-readable storage medium.
[0005] According to one aspect of the embodiments of this application, a method for defogging an automotive air conditioning system is disclosed, the method comprising:
[0006] The external air circulation ratio corresponding to the non-fogging of car windows is obtained, and the amount of outside air entering the car is positively correlated with the external air circulation ratio.
[0007] If a corresponding external circulation ratio exists, the internal and external circulation dampers are controlled based on the minimum external circulation ratio corresponding to the window not fogging.
[0008] If there is no corresponding external circulation ratio, control the internal and external circulation dampers to adjust to full internal circulation and switch the air conditioner to defogging mode.
[0009] In one exemplary embodiment, obtaining the external air circulation ratio corresponding to the windshield not fogging includes:
[0010] Will the car windows fog up if the external air circulation ratio is set to the highest percentage?
[0011] If the car windows do not fog up, the first percentage will be used as the minimum external circulation percentage.
[0012] If the car windows fog up, determine whether the car windows will fog up if the external circulation ratio is increased by a preset amount based on the first ratio.
[0013] If the windows do not fog up when the external circulation ratio is increased by a preset amount, the external circulation ratio after the preset amount is increased will be used as the minimum external circulation ratio.
[0014] If the windows fog up when the external air circulation ratio is increased by a preset amount, increase the external air circulation ratio again until the external air circulation ratio reaches the upper limit or the external air circulation ratio that prevents the windows from fogging up is obtained.
[0015] In one exemplary embodiment, determining whether a vehicle window will fog up includes:
[0016] The first temperature value obtained after summing the window dew point temperature and the temperature adjustment value is calculated.
[0017] Compare the surface temperature of the car window with the first temperature value;
[0018] If the surface temperature of the car window is above the first temperature value, the car window is considered not to fog up; if the surface temperature of the car window is below the first temperature value, the car window is considered to fog up.
[0019] In one exemplary embodiment, before obtaining the external air circulation ratio corresponding to the windshield not fogging, the method further includes:
[0020] Obtain the dew point temperature and surface temperature of the vehicle window; obtaining the dew point temperature includes:
[0021] It can acquire the relative humidity of the air inside the vehicle, the relative humidity of the air outside the vehicle, the air temperature inside the vehicle, the air temperature outside the vehicle, as well as the internal and external air circulation volumes.
[0022] Based on the relative humidity and temperature of the air inside the vehicle, the enthalpy value and humidity content of the recirculated air are obtained.
[0023] Based on the relative humidity and temperature of the air outside the vehicle, the enthalpy value and humidity content of the external circulating air are obtained.
[0024] Based on the enthalpy of the internal circulating air, the enthalpy of the external circulating air, the moisture content of the internal circulating air, the moisture content of the external circulating air, the internal circulating air volume, and the external circulating air volume, the mixed air enthalpy and mixed air moisture content of the internal circulating air and the external circulating air are obtained.
[0025] The dew point temperature of the vehicle window is obtained based on the enthalpy and moisture content of the mixed air.
[0026] In one exemplary embodiment, obtaining the enthalpy value and humidity content of the recirculated air based on the relative humidity and temperature of the in-vehicle air includes:
[0027] The relative humidity of the air inside the vehicle is corrected using a humidity correction factor to obtain the corrected relative humidity of the air inside the vehicle.
[0028] The in-vehicle air temperature is corrected using a temperature correction coefficient to obtain the corrected in-vehicle air temperature.
[0029] The corrected relative humidity and temperature of the in-vehicle air are mapped to obtain the enthalpy and humidity of the recirculated air.
[0030] In one exemplary embodiment, before obtaining the external air circulation ratio corresponding to the windshield not fogging, the method further includes:
[0031] Adjust the internal and external circulation dampers to full internal circulation.
[0032] In an exemplary embodiment, the air conditioner includes a first air intake duct and a second air intake duct, which are separated and the first air intake duct is located above the second air intake duct. The air inlet of the first air intake duct is provided with a first internal / external circulation damper, and the air inlet of the second air intake duct is provided with a second internal / external circulation damper. The control of the internal / external circulation dampers based on the minimum external circulation ratio corresponding to the window not fogging includes:
[0033] The first internal and external circulation damper is controlled based on the minimum external circulation ratio corresponding to the window not fogging.
[0034] If the first internal and external circulation damper reaches its maximum opening and the external circulation ratio is less than the minimum external circulation ratio, then the second internal and external circulation damper is controlled based on the minimum external circulation ratio.
[0035] According to one aspect of the embodiments of this application, a car air conditioning defogging device is disclosed, comprising:
[0036] The processing module is used to obtain the external air circulation ratio corresponding to the non-fogging of the car windows. The amount of outside air entering the car is positively correlated with the external air circulation ratio.
[0037] The control module is used to control the internal and external circulation dampers based on the minimum external circulation ratio corresponding to the window not fogging when a corresponding external circulation ratio exists; when no corresponding external circulation ratio exists, the control module adjusts the internal and external circulation dampers to full internal circulation and switches the air conditioning to defogging mode.
[0038] According to one aspect of the embodiments of this application, an electronic device is disclosed, including one or more processors and a memory, wherein the memory is used to store one or more computer programs, and when the one or more computer programs are executed by the one or more processors, the processors cause the processors to implement the aforementioned automotive air conditioning defogging method.
[0039] According to one aspect of the embodiments of this application, a computer-readable storage medium is disclosed, the computer-readable storage medium storing computer-readable instructions, which, when executed by a computer's processor, cause the computer to perform the aforementioned automotive air conditioning defogging method.
[0040] The technical solutions provided by the embodiments of this application have at least the following beneficial effects:
[0041] The technical solution provided in this application first obtains the external air circulation ratio corresponding to the non-fogging of the vehicle windows. If a corresponding external air circulation ratio exists, meaning that effective defogging can be achieved by adjusting the internal and external circulation ratio, the internal and external circulation dampers are controlled based on the minimum external air circulation ratio corresponding to the non-fogging of the vehicle windows. This prevents excessive outside air from entering the vehicle cabin, which would increase the energy consumption of the air conditioning heating system and affect passenger comfort. If a corresponding external air circulation ratio does not exist, meaning that effective defogging cannot be achieved by adjusting the internal and external circulation ratio, the internal and external circulation dampers are adjusted to full internal circulation, preventing outside air from entering the vehicle cabin. At the same time, the air conditioning is switched to defogging mode, and the compressor is turned on to perform defogging. This application can achieve precise defogging control, ensuring the defogging effect while reducing vehicle energy consumption.
[0042] It should be understood that the above general description and the following detailed description are merely exemplary and do not limit this application. Attached Figure Description
[0043] The accompanying drawings, which are incorporated in and form part of this specification, illustrate embodiments consistent with this application and, together with the specification, serve to explain the principles of this application.
[0044] Figure 1 This is a block diagram illustrating an exemplary vehicle defogging system.
[0045] Figure 2 This is a schematic diagram illustrating the air circulation of a dual-flow air conditioner, as shown in an exemplary embodiment.
[0046] Figure 3 This is a flowchart illustrating a method for defogging an automotive air conditioner, as shown in the first exemplary embodiment.
[0047] Figure 4 yes Figure 3 Detailed flowchart of step S101.
[0048] Figure 5 This is a flowchart illustrating a method for defogging an automotive air conditioner, as shown in the second exemplary embodiment.
[0049] Figure 6 This is a flowchart illustrating a method for defogging an automotive air conditioner, as shown in the third exemplary embodiment.
[0050] Figure 7 This is a block diagram illustrating the components of an automotive air conditioning defogging device, as shown in an exemplary embodiment.
[0051] Figure 8 This is a block diagram illustrating an electronic device according to an exemplary embodiment.
[0052] Figure 9 This is a block diagram illustrating a computer system according to an exemplary embodiment.
[0053] The annotations in the attached figures are explained as follows:
[0054] 100. Defogging system; 110. Temperature and humidity detection device; 120. Air conditioning controller; 130. Internal and external circulation damper; 140. Refrigeration unit; 150. Windshield; 200. Automotive air conditioning defogging device; 210. Information acquisition module; 220. Processing module; 230. Control module; 300. Electronic equipment; 301. Processor; 302. Memory; 400. Computer system; 401. CPU; 402. ROM; 403. Storage section; 404. RAM; 405. Bus; 406. I / O interface; 407. Input section; 408. Output section; 409. Communication section; 410. Driver; 411. Removable media. Detailed Implementation
[0055] Although this application can be readily embodied in various forms of implementation, only some specific embodiments are shown in the accompanying drawings and will be described in detail in this specification. It is understood that this specification should be regarded as an exemplary illustration of the principles of this application and is not intended to limit the application to what is described herein.
[0056] Furthermore, the terms “comprising,” “including,” “having,” and any variations thereof used in the description of this application are intended to cover non-exclusive inclusion. For example, a process, method, system, product, or device that includes a series of steps or modules is not limited to the steps or modules listed, but may optionally include other steps or modules not listed, or may optionally include other steps or modules inherent to such processes, methods, products, or devices.
[0057] It should be noted that in the embodiments of this application, the words "exemplary," "for example," or "illustrated" are used to indicate examples, illustrations, or explanations. Any embodiment or design scheme described as "exemplary," "for example," or "illustrated" in the embodiments of this application should not be construed as being more preferred or advantageous than other embodiments or design schemes. Specifically, the use of words such as "exemplary," "for example," or "illustrated" is intended to present the relevant concepts in a specific manner.
[0058] The exemplary embodiments will now be described in detail. The embodiments described in the following exemplary embodiments do not represent all embodiments consistent with this application. Rather, they are merely examples of apparatuses and methods consistent with some aspects of this application as detailed in the summary of the invention.
[0059] like Figure 1 As shown, the automobile's defogging system 100 includes at least a temperature and humidity detection device 110, an air conditioning controller 120, an internal and external circulation damper 130, and a refrigeration device 140.
[0060] The temperature and humidity detection device 110 includes various possible temperature and humidity sensors, including but not limited to window temperature sensors, interior temperature sensors, interior humidity sensors, exterior temperature sensors, and exterior humidity sensors.
[0061] The system includes a window temperature sensor, an interior temperature sensor, and an interior humidity sensor, all installed inside the vehicle. The window temperature sensor can be installed on the vehicle's window, such as the windshield, to detect the surface temperature of the window and report it to the air conditioning controller 120. Similarly, the interior temperature sensor can also be installed on the windshield to detect the temperature of the air inside the vehicle around the windshield and report it to the air conditioning controller 120. Likewise, the interior humidity sensor can be installed on the windshield to detect the relative humidity of the air inside the vehicle around the windshield and report it to the air conditioning controller 120.
[0062] Understandably, the window temperature sensor, the interior temperature sensor, and the interior humidity sensor can be set up independently or integrated into one unit. For example, a temperature and humidity sensor can be installed inside the vehicle to replace the independent interior temperature sensor and interior humidity sensor to detect the interior air temperature and relative humidity.
[0063] An outside temperature sensor and an outside humidity sensor are installed outside the vehicle. The outside temperature sensor detects the outside air temperature and feeds it back to the air conditioning controller 120. The outside humidity sensor detects the outside air relative humidity and feeds it back to the air conditioning controller 120.
[0064] Understandably, the vehicle exterior temperature sensor and the vehicle exterior humidity sensor can be set up separately or integrated into one unit. For example, a temperature and humidity sensor can be set up outside the vehicle, which can replace the separate vehicle exterior temperature sensor and vehicle exterior humidity sensor to detect the outside air temperature and relative humidity.
[0065] The air conditioning controller 120 can determine the control strategy of the air conditioning system based on information fed back from various sensors, and control the corresponding actuators to perform actions. For example, in defogging mode, the air conditioning controller 120 controls the refrigeration unit 140 to cool the air and blow the cold air toward the windows, thereby achieving defogging. The refrigeration unit 140 includes a compressor, etc.
[0066] The air conditioning intake duct can be entirely filled with outside air, in which case it is a complete external circulation; the air conditioning intake duct can also be entirely filled with inside air, in which case it is a complete internal circulation; the air conditioning intake duct can also be partially filled with outside air and partially filled with inside air.
[0067] The internal and external circulation damper 130 is installed at the air inlet of the air conditioning intake duct to control the amount of outside air and inside air entering the air conditioning intake duct, thereby controlling the mixing ratio of outside air and inside air entering the car, that is, the internal and external circulation ratio.
[0068] In some embodiments, the air conditioning system may be equipped with only one internal and external circulation damper.
[0069] In some embodiments, the air conditioning system can be a dual-flow air conditioning system, wherein the air conditioning unit is provided with two air intake ducts and two internal and external circulation dampers, and the operation of the two internal and external circulation dampers is independent of each other. Specifically, the air conditioning system has a first air intake duct and a second air intake duct, which are separated and the first air intake duct is located above the second air intake duct. The air inlet of the first air intake duct is provided with a first internal and external circulation damper, which controls the mixing ratio of interior and exterior air in the air entering the first air intake duct. The air inlet of the second air intake duct is provided with a second internal and external circulation damper, which controls the mixing ratio of interior and exterior air in the air entering the second air intake duct.
[0070] Figure 2 This is a schematic diagram illustrating the air circulation of a dual-layer air conditioning system, as shown in an exemplary embodiment. Figure 2As shown, outside air enters the vehicle through the first air intake duct and blows onto the windshield 150 to defog the windshield 150, and then is exhausted outside the vehicle; the recirculated air inside the vehicle enters the vehicle through the second air intake duct and blows towards the lower part of the vehicle compartment to heat the passengers inside the vehicle, and then enters the vehicle again through the second air intake duct.
[0071] The vehicle in question can be a traditional gasoline-powered car, an electric car, or a hybrid vehicle. For traditional gasoline-powered and hybrid vehicles, when cabin heating is needed, the engine heats the coolant, which then flows into a heat exchanger. There, the coolant exchanges heat with air entering through the air conditioning duct, and a blower blows the heated air into the cabin. For electric vehicles, when cabin heating is needed, an electric heater (e.g., a resistance heater) heats the heat transfer medium, which exchanges heat with air entering through the air conditioning duct, and a blower blows the heated air into the cabin. In other words, in heating mode, the car's compressor does not need to be activated.
[0072] In order to achieve effective defogging of vehicle windows while taking into account vehicle energy consumption, the vehicle air conditioning defogging method of this application pre-calculates whether effective defogging can be achieved by adjusting the ratio of internal and external circulation. If effective defogging can be achieved by adjusting the ratio of internal and external circulation, the internal and external circulation dampers are controlled based on the minimum external circulation ratio corresponding to the window not fogging. If effective defogging cannot be achieved by adjusting the ratio of internal and external circulation, the internal and external circulation dampers are controlled to be adjusted to full internal circulation, and the air conditioning is switched to defogging mode, and the compressor is turned on to perform defogging.
[0073] Figure 3 This is a flowchart illustrating a method for defogging an automotive air conditioner, as shown in the first exemplary embodiment.
[0074] See Figure 3 The automotive air conditioning defogging method of this application includes the following steps S101 to S104.
[0075] S101, obtains the window dew point temperature and window surface temperature.
[0076] The dew point temperature of the car window is affected by several factors, mainly including the enthalpy and moisture content of the air mixture between the internal and external air circulation. The enthalpy and moisture content of the air mixture are related to the relative humidity of the air inside the car, the relative humidity of the air outside the car, the temperature of the air inside the car, the temperature of the air outside the car, as well as the air volume of the internal and external circulation.
[0077] In some exemplary embodiments, such as Figure 4 As shown, step S101 includes the following steps S1011 to S1014.
[0078] S1011 acquires the relative humidity of the air inside the vehicle, the relative humidity of the air outside the vehicle, the air temperature inside the vehicle, the air temperature outside the vehicle, as well as the internal and external air circulation volumes.
[0079] The internal and external airflow volumes can be calculated based on the air conditioning fan speed setting. For example, if the total airflow entering the vehicle (passenger compartment) is M, M = M1 + M2, where M1 represents the external airflow volume, M2 represents the internal airflow volume, and the external airflow ratio is λ, where 0% ≤ λ ≤ 100%, then the external airflow volume M1 = λ * M, and the internal airflow volume M2 = (1 - λ)M.
[0080] S1012 obtains the enthalpy and humidity of the recirculated air based on the relative humidity and temperature of the air inside the vehicle; and obtains the enthalpy and humidity of the external recirculated air based on the relative humidity and temperature of the air outside the vehicle.
[0081] There is a mapping relationship between the enthalpy of the recirculated air and the relative humidity and temperature inside the vehicle. Similarly, there is a mapping relationship between the humidity of the recirculated air and the relative humidity and temperature inside the vehicle. In some exemplary embodiments, the enthalpy and humidity of the recirculated air are obtained by querying a mapping table between the relative humidity and temperature inside the vehicle and the enthalpy and humidity of the recirculated air.
[0082] Since window fogging is primarily affected by the relative humidity and temperature of the air surrounding the window, the collected relative humidity and temperature inside the vehicle are optimally determined by the relative humidity and temperature around the window. However, factors such as the installation location of the in-vehicle temperature and humidity sensors can influence the detected relative humidity and temperature. In some exemplary embodiments, the relative humidity and temperature inside the vehicle are first calibrated before consulting the mapping table between the relative humidity and temperature inside the vehicle and the enthalpy and humidity content of the recirculated air.
[0083] In detail, in step S1012, the relative humidity of the air inside the vehicle is first corrected using a humidity correction coefficient to obtain the corrected relative humidity of the air inside the vehicle; the temperature of the air inside the vehicle is corrected using a temperature correction coefficient to obtain the corrected temperature of the air inside the vehicle; then, the corrected relative humidity of the air inside the vehicle and the corrected temperature of the air inside the vehicle are mapped to obtain the enthalpy value of the recirculated air and the humidity content of the recirculated air.
[0084] The humidity correction coefficient and temperature correction coefficient can be obtained through pre-calibration. By correcting the detected relative humidity and temperature of the air inside the vehicle, the accuracy of these parameters can be improved, thereby increasing the accuracy of the enthalpy and humidity content of the recirculated air, and ultimately improving the accuracy of the dew point temperature of the vehicle windows.
[0085] There is a mapping relationship between the enthalpy of the external air and the relative humidity and temperature of the outside air. Similarly, there is a mapping relationship between the humidity of the external air and the relative humidity and temperature of the outside air. In some exemplary embodiments, the enthalpy and humidity of the external air are obtained by querying a mapping table between the relative humidity and temperature of the outside air and the enthalpy and humidity of the external air.
[0086] S1013, based on the enthalpy of the internal circulating air, the enthalpy of the external circulating air, the humidity of the internal circulating air, the humidity of the external circulating air, the internal circulating air volume, and the external circulating air volume, obtains the mixed air enthalpy and mixed air humidity of the internal and external circulating air.
[0087] In detail, firstly, the external circulation dry air volume is obtained based on the external circulation air volume and the external circulation air humidity content, and the internal circulation dry air volume is obtained based on the internal circulation air volume and the internal circulation air humidity content. Then, based on the external circulation dry air volume, the internal circulation dry air volume, the external circulation air enthalpy value, and the internal circulation air enthalpy value, the mixed air enthalpy value of the internal and external circulation air is obtained; based on the external circulation dry air volume, the internal circulation dry air volume, the external circulation air humidity content, and the internal circulation air humidity content, the mixed air humidity content of the internal and external circulation air is obtained.
[0088] The external circulation dry air volume is: Ma1=M1 / (1+0.001d1)=λ*M / (1+0.001d1), where Ma1 represents the external circulation dry air volume, M1 represents the external circulation air volume, d1 represents the external circulation air humidity, λ represents the external circulation ratio, and M represents the total air volume entering the vehicle (passenger compartment).
[0089] The internal recirculation dry air volume is: Ma2=M2 / (1+0.001d2)=(1-λ)*M / (1+0.001d2), where Ma2 represents the internal recirculation dry air volume, M2 represents the internal recirculation air volume, d2 represents the internal recirculation air humidity, λ represents the internal recirculation ratio, and M represents the total air volume entering the vehicle (passenger compartment).
[0090] The enthalpy of the mixed air of internal and external circulation is: hc=(Ma1*h1+Ma2*h2) / (Ma1+Ma2), where hc represents the enthalpy of the mixed air, Ma1 represents the amount of dry air in external circulation, Ma2 represents the amount of dry air in internal circulation, h1 represents the enthalpy of external circulation air, and h2 represents the enthalpy of internal circulation air.
[0091] The moisture content of the mixed air of internal and external circulation is: dc=(Ma1*d1+Ma2*d2) / (Ma1+Ma2), where dc represents the moisture content of the mixed air, Ma1 represents the amount of dry air in external circulation, Ma2 represents the amount of dry air in internal circulation, d1 represents the moisture content of external circulation air, and d2 represents the moisture content of internal circulation air.
[0092] S1014, based on the enthalpy and moisture content of the mixed air, obtains the dew point temperature of the vehicle window.
[0093] There is a mapping relationship between the dew point temperature of the vehicle window and the enthalpy and moisture content of the mixed air. In some exemplary embodiments, the dew point temperature of the vehicle window is obtained by querying the mapping relationship table between the dew point temperature of the vehicle window and the enthalpy and moisture content of the mixed air.
[0094] S102, obtain the external circulation ratio corresponding to the non-fogging of the car windows. If the corresponding external circulation ratio exists, proceed to step S103; otherwise, if the corresponding external circulation ratio does not exist, proceed to step S104.
[0095] In some embodiments, in step S102, the system first calculates whether the windows will fog up when the external air circulation ratio is low. If the windows fog up, it further calculates whether the windows will fog up when the external air circulation ratio is increased by a certain amount. If the windows still fog up, it further calculates whether the windows will fog up when the external air circulation ratio is even higher, until the external air circulation ratio reaches its maximum value or the windows no longer fog up. By progressively calculating whether the windows will fog up at various external air circulation ratios from low to high, the calculation can be stopped when the windows no longer fog up, thus reducing unnecessary calculations.
[0096] Of course, in other embodiments, it is also possible to simultaneously calculate whether the windows will fog up under multiple different external circulation ratios.
[0097] The more the surface temperature of the car window exceeds the dew point temperature, the less likely the window will fog up. If the surface temperature of the car window is equal to or lower than the dew point temperature, the window will fog up.
[0098] In some exemplary embodiments, in step S102, a first temperature value corresponding to the sum of the window dew point temperature and the temperature adjustment value is first obtained; then, the window surface temperature is compared with the obtained first temperature value; if the window surface temperature is above the first temperature value, it is considered that the window will not fog up; if the window surface temperature is below the first temperature value, it is considered that the window will fog up.
[0099] When determining whether a car window will fog up, the system is based on the relationship between the window surface temperature and a first temperature value obtained by adding the window dew point temperature to the temperature adjustment value. This prevents misjudgments due to errors in the window dew point temperature and / or window surface temperature, thus improving the accuracy of fogging detection.
[0100] The temperature adjustment value can be pre-calibrated based on the actual operating conditions of the vehicle, such as 1℃, 1.5℃, etc.
[0101] It should be noted that in some embodiments, the comparison can be made directly between the surface temperature of the window and the dew point temperature of the window. For example, if the surface temperature of the window is above the dew point temperature, it is assumed that the window will not fog up; if the surface temperature of the window is below the dew point temperature, it is assumed that the window will fog up.
[0102] S103 controls the internal and external air circulation dampers based on the minimum external air circulation ratio corresponding to the window not fogging. That is, it controls the internal and external air circulation dampers so that the external air circulation ratio is the minimum external air circulation ratio corresponding to the window not fogging.
[0103] It should be noted that the minimum external air circulation ratio for preventing window fogging refers to the minimum value among all external air circulation ratios used to calculate whether the windows will fog up, where the calculated result is the minimum external air circulation ratio that prevents fogging. For example, if the adjustment range of the external air circulation ratio is 2% when calculating whether the windows will fog up, and the windows will fog up at external air circulation ratios of 18% and 20%, but will not fog up at an external air circulation ratio of 22%, then 22% is taken as the minimum external air circulation ratio for preventing window fogging, and the window fogging situation at external air circulation ratios between 20% and 22% is no longer considered.
[0104] In some embodiments of air conditioning systems that are dual-flow air conditioning systems, in step S103, the first internal and external circulation damper is first controlled based on the minimum external circulation ratio corresponding to the window not fogging. If the first internal and external circulation damper is at its maximum opening, the external circulation ratio is less than the minimum external circulation ratio, and then the second internal and external circulation damper is controlled based on the minimum external circulation ratio.
[0105] The system prioritizes adjusting the first internal and external circulation damper to allow cold outside air to blow from the upper part of the passenger compartment to the windows, thus defogging the windows. Meanwhile, the second internal and external circulation damper is kept in internal circulation mode as much as possible, so that the air intake at the lower part of the passenger compartment is internal recirculated air, improving passenger comfort and saving energy.
[0106] It should be noted that when the first internal and external circulation damper is at its maximum opening, all the air intake in the air intake duct where the first internal and external circulation damper is located is outside air.
[0107] It should be noted that the overall external circulation ratio of the air conditioner can be the average of the external circulation ratio of the air intake duct where the first internal / external circulation damper is located and the external circulation ratio of the air intake duct where the second internal / external circulation damper is located. For example, if the air intake volume of the air intake duct where the first internal / external circulation damper is located is equal to the air intake volume of the air intake duct where the second internal / external circulation damper is located, and the external circulation ratio of the air intake duct where the first internal / external circulation damper is located is 40%, and the external circulation ratio of the air intake duct where the second internal / external circulation damper is located is 0%, then the overall external circulation ratio of the air conditioner is 20%.
[0108] Of course, the overall external circulation ratio of the air conditioner is not limited to the average of the external circulation ratio of the air intake duct where the first internal and external circulation damper is located and the external circulation ratio of the air intake duct where the second internal and external circulation damper is located. It depends on the proportion of air intake volume of the two air intake ducts of the air conditioner unit.
[0109] S104 controls the internal / external air circulation damper to full internal circulation and switches the air conditioner to defogging mode. Defogging is performed by turning on the compressor.
[0110] Furthermore, in some embodiments, before obtaining the external air circulation ratio corresponding to no fogging of the windows, the internal and external air circulation dampers are first adjusted to full internal circulation. This reduces heat loss within the vehicle cabin, further saving vehicle energy consumption.
[0111] Figure 5 This is a flowchart illustrating a method for defogging an automotive air conditioner, as shown in the second exemplary embodiment.
[0112] See Figure 5 In one exemplary embodiment, the automotive air conditioning defogging method of this application includes the following steps S201 to S207.
[0113] S201, control the internal and external circulation dampers to adjust to full internal circulation. At this time, the internal circulation ratio is 100% and the external circulation ratio is 0%.
[0114] S202, obtain the window surface temperature Tg, window dew point temperature Td, and reference external circulation ratio λ.
[0115] The baseline external circulation ratio λ can be the actual external circulation ratio at this time, i.e., λ is 0%, or it can be a ratio value set according to specific circumstances, such as λ is 50%.
[0116] S203, determine whether Tg is less than or equal to Td+D. If so, assume the car window will fog up and proceed to step S204; otherwise, assume the car window will not fog up and proceed to step S206.
[0117] Wherein, D represents a temperature adjustment value. In some embodiments, D is a positive number, such as D = 1℃, 1.5℃, etc.
[0118] It should be noted that in some embodiments, step S203 can also be set to: determine whether Tg is less than Td+D; if so, it is assumed that the car window will fog up and proceed to step S204; otherwise, it is assumed that the car window will not fog up and proceed to step S206.
[0119] S204, execute λ+N%, then proceed to step S205.
[0120] Wherein, N% can be an adjustment range value that can be flexibly set according to the actual situation, and N>0. In some exemplary embodiments, N% is 5%; of course, N% can also be 2%, 3%, 4%, 6%, etc.
[0121] S205, determine whether λ+N% is greater than 100%. If yes, proceed to step S207; otherwise, return to step S203.
[0122] S206, controls the internal and external circulation dampers based on the currently set external circulation ratio.
[0123] In other words, defogging is achieved by adjusting the internal and external circulation dampers and controlling the external circulation ratio.
[0124] S207, control the internal and external circulation dampers to adjust the external circulation ratio to 0%, and switch the air conditioner to defogging mode.
[0125] That is, the internal and external circulation dampers are adjusted to full internal circulation, and the compressor is turned on to perform demisting.
[0126] exist Figure 5 In the illustrated embodiment, it is first determined whether the windows will fog up when the external air circulation ratio is low. If the windows will not fog up, the internal and external air circulation dampers are controlled based on the external air circulation ratio to prevent excessive outside air from entering the cabin, which would increase the energy consumption of the air conditioning heating system and affect passenger comfort. If the windows will fog up, it is further determined whether the windows will fog up if the external air circulation ratio is increased by N%. If the windows will not fog up, the internal and external air circulation dampers are controlled based on the increased external air circulation ratio. In this case, defogging is achieved by increasing the amount of outside air, without needing to turn on the compressor. If the windows are still expected to fog up after the external air circulation ratio is increased to the upper limit, the internal and external air circulation dampers are adjusted to full internal circulation, and the air conditioning is switched to defogging mode, using the compressor to defog. This reduces heat loss inside the cabin and further saves vehicle energy consumption.
[0127] Figure 6 This is a flowchart illustrating a method for defogging an automotive air conditioner, as shown in the third exemplary embodiment.
[0128] See Figure 6 In one exemplary embodiment, the automotive air conditioning defogging method of this application includes the following steps S301 to S310.
[0129] S301, control the internal and external circulation dampers to adjust to full internal circulation. At this time, the internal circulation ratio is 100% and the external circulation ratio is 0%.
[0130] S302, obtain the surface temperature Tg of the vehicle window and the dew point temperature Td of the vehicle window.
[0131] S303, determine whether Tg≤Td+D holds true when the external circulation ratio is 0%. If yes, assume the car window will fog up and proceed to step S304; otherwise, assume the car window will not fog up and proceed to step S306.
[0132] Wherein, D represents a temperature adjustment value. In some embodiments, D is a positive number, such as D = 1℃, 1.5℃, etc.
[0133] S304. Determine whether Tg≤Td+D holds true when the external circulation ratio is 50%. If yes, assume the car window will fog up and proceed to step S305; otherwise, assume the car window will not fog up and proceed to step S307.
[0134] S305, determine whether Tg≤Td+D holds true when the external circulation ratio is 100%. If yes, it is assumed that the car window will fog up. At this time, adjusting the internal and external circulation ratio can no longer effectively defog the windows, and proceed to step S310; otherwise, it is assumed that the car window will not fog up, and proceed to step S308.
[0135] S306 controls the internal and external circulation dampers based on the currently set external circulation ratio.
[0136] In other words, defogging is achieved by adjusting the internal and external circulation dampers to control the external circulation ratio.
[0137] S307, set the baseline external circulation ratio λ = 0%, execute λ + 5%, and then proceed to step S309 to determine whether the windows will still fog up after executing λ + 5%.
[0138] It should be noted that 5% represents the adjustment range value, which can be flexibly set according to specific circumstances. In some exemplary embodiments, the adjustment range value can also be, for example, 2%, 3%, 4%, or 6%. That is, in step S307, it can also be λ+2%, λ+3%, λ+4%, λ+6%, etc.
[0139] It should be noted that in step S307, it is not limited to adding a fixed percentage to λ. In some embodiments, λ can be added to a different percentage each time step S307 is executed.
[0140] S308, set the baseline external circulation ratio λ = 50%, execute λ + 5%, and then proceed to step S309 to determine whether the windows will still fog up after executing λ + 5%.
[0141] It should be noted that 5% represents the adjustment range value, which can be flexibly set according to specific circumstances. In some exemplary embodiments, the adjustment range value can also be, for example, 2%, 3%, 4%, or 6%. That is, in step S308, it can also be λ+2%, λ+3%, λ+4%, λ+6%, etc.
[0142] It should be noted that in step S308, it is not limited to adding a fixed percentage to λ. In some embodiments, λ can be added to a different percentage each time step S308 is executed.
[0143] S309, determine whether Tg≤Td+D is true. If yes, assume the car window will fog up and return to step S307 or step S308; otherwise, assume the car window will not fog up and proceed to step S306.
[0144] S310, control the internal and external circulation damper to adjust the external circulation ratio to 0%, and switch the air conditioner to defogging mode.
[0145] That is, the internal and external circulation dampers are adjusted to full internal circulation, and the compressor is turned on to perform demisting.
[0146] exist Figure 6 In the embodiment shown, it is first determined whether the surface temperature of the car window is less than or equal to the dew point temperature of the car window when the external circulation ratio is 0%, 50%, or 100%. If so, the internal and external circulation dampers are directly controlled to adjust the external circulation ratio to 0%, and the air conditioning is switched to the defogging mode to quickly defog, avoiding the slow defogging response caused by directly adjusting the external circulation ratio based on the adjustment range.
[0147] In addition, in some embodiments, step S304 can be omitted. When it is determined that Tg≤Td+D is not true when the external circulation ratio is 0%, it is directly determined whether Tg≤Td+D is true when the external circulation ratio is 100%. If so, it is assumed that the windows will fog up, and the external circulation damper is controlled to adjust the external circulation ratio to 0% and the air conditioning is switched to defogging mode. Otherwise, it is assumed that the windows will not fog up, and the baseline external circulation ratio λ=0% is set. λ+5% is executed, and then it is determined whether Tg≤Td+D is true after each execution of λ+5% until the external circulation ratio corresponding to the failure of Tg≤Td+D is obtained. Then, the internal and external circulation dampers are controlled based on the corresponding external circulation ratio.
[0148] The following are embodiments of the automotive air conditioning defogging device of this application. For details not disclosed in the embodiments of the automotive air conditioning defogging device of this application, please refer to the above embodiments of the automotive air conditioning defogging method of this application.
[0149] Figure 7This is an exemplary embodiment of an automotive air conditioning defrosting device 200, which can be applied to the process of defrosting car windows and performing... Figures 3 to 6 All or part of the steps of any of the illustrated automotive air conditioning defogging methods. For example... Figure 7 As shown, the automotive air conditioning defrosting device 200 includes, but is not limited to, an information acquisition module 210, a processing module 220, and a control module 230.
[0150] The information acquisition module 210 is used to acquire the dew point temperature and surface temperature of the window.
[0151] In an exemplary embodiment, the information acquisition module 210 acquires the relative humidity of the air inside the vehicle, the relative humidity of the air outside the vehicle, the air temperature inside the vehicle, the air temperature outside the vehicle, and the internal and external air circulation volumes; based on the relative humidity and air temperature inside the vehicle, it obtains the enthalpy and humidity content of the internal air circulation; based on the relative humidity and air temperature outside the vehicle, it obtains the enthalpy and humidity content of the external air circulation; based on the enthalpy, enthalpy, humidity content, and air circulation volumes of the internal and external air circulation, it obtains the enthalpy and humidity content of the mixed air circulation; and based on the enthalpy and humidity content of the mixed air circulation, it obtains the dew point temperature of the vehicle window.
[0152] In an exemplary embodiment, the information acquisition module 210 first uses a humidity correction coefficient to correct the relative humidity of the air inside the vehicle to obtain the corrected relative humidity of the air inside the vehicle; then uses a temperature correction coefficient to correct the temperature of the air inside the vehicle to obtain the corrected temperature of the air inside the vehicle; and then performs mapping processing on the corrected relative humidity of the air inside the vehicle and the corrected temperature of the air inside the vehicle to obtain the enthalpy value of the recirculated air and the humidity content of the recirculated air.
[0153] The processing module 220 is used to obtain the external air circulation ratio corresponding to the window not fogging. The amount of outside air entering the car is positively correlated with the external air circulation ratio.
[0154] In an exemplary embodiment, the processing module 220 determines whether the windows will fog up when the external circulation ratio is a first ratio; if the windows will not fog up, the first ratio is used as the minimum external circulation ratio; if the windows will fog up, it determines whether the windows will fog up when the external circulation ratio is increased by a preset amount based on the first ratio; if the windows will not fog up when the external circulation ratio is increased by the preset amount, the external circulation ratio after the preset amount is increased is used as the minimum external circulation ratio; if the windows will fog up when the external circulation ratio is increased by the preset amount, the external circulation ratio is increased again until the external circulation ratio reaches the upper limit or the external circulation ratio corresponding to the windows not fogging is obtained.
[0155] In an exemplary embodiment, the processing module 220 obtains a first temperature value corresponding to the sum of the window dew point temperature and the temperature adjustment value; then compares the window surface temperature with the first temperature value; if the window surface temperature is above the first temperature value, it is considered that the window will not fog up; if the window surface temperature is below the first temperature value, it is considered that the window will fog up.
[0156] The control module 230 is used to control the internal and external circulation dampers based on the minimum external circulation ratio corresponding to the window not fogging when a corresponding external circulation ratio exists; when no corresponding external circulation ratio exists, it controls the internal and external circulation dampers to adjust to full internal circulation and switches the air conditioning to defogging mode.
[0157] In one exemplary embodiment, before the processing module 220 obtains the external circulation ratio corresponding to the windshield not fogging, the control module 230 controls the internal and external circulation dampers to adjust to full internal circulation.
[0158] In one exemplary embodiment, the air conditioner includes a first air intake duct and a second air intake duct, which are separated and the first air intake duct is located above the second air intake duct. The air inlet of the first air intake duct is equipped with a first internal / external circulation damper, and the air inlet of the second air intake duct is equipped with a second internal / external circulation damper. The control module 230 controls the first internal / external circulation damper based on the minimum external circulation ratio corresponding to the window not fogging up; if the first internal / external circulation damper reaches its maximum opening, the external circulation ratio is less than the minimum external circulation ratio, and then the second internal / external circulation damper is controlled based on the minimum external circulation ratio.
[0159] The automotive air conditioning defrosting device 200 can be installed in any device with data processing capabilities.
[0160] See Figure 8 As shown, this embodiment provides an electronic device 300, which includes one or more processors 301 and a memory 302. The memory 302 stores one or more computer programs that can run on the processors 301. When one or more computer programs are executed by one or more processors 301, the electronic device 300 implements the defogging method of this application.
[0161] Figure 9 A schematic block diagram of a computer system architecture for implementing an electronic device according to embodiments of this application is shown. It should be noted that... Figure 9 The computer system shown is merely an example and should not impose any limitation on the functionality and scope of use of the embodiments of this application.
[0162] like Figure 9As shown, the computer system 400 includes a central processing unit (CPU) 401, which can perform various appropriate actions and processes based on programs stored in read-only memory (ROM) 402 or programs loaded from storage section 403 into random access memory (RAM) 404. The RAM 404 also stores various programs and data required for device operation. The CPU 401, ROM 402, and RAM 404 are interconnected via a bus 405. An input / output interface 406 (I / O interface) is also connected to the bus 405.
[0163] The following components are connected to the input / output interface 406: an input section 407 including a keyboard, mouse, etc.; an output section 408 including a cathode ray tube (CRT), liquid crystal display (LCD), etc., and speakers, etc.; a storage section 403 including a hard disk, etc.; and a communication section 409 including a network interface card such as a local area network card, modem, etc. The communication section 409 performs communication processing via a network such as the Internet. A drive 410 is also connected to the input / output interface 406 as needed. A removable medium 411, such as a disk, optical disk, magneto-optical disk, semiconductor memory, etc., is installed on the drive 410 as needed so that computer programs read from it can be installed into the storage section 403 as needed.
[0164] Specifically, according to embodiments of this application, the processes described in the various method flowcharts can be implemented as computer software programs. For example, embodiments of this application include a computer program product comprising a computer program carried on a computer-readable medium, the computer program containing program code for performing the methods shown in the flowcharts. In such embodiments, the computer program can be downloaded and installed from a network via communication section 409, and / or installed from removable medium 411. When the computer program is executed by central processing unit 401, it performs the various functions defined in the apparatus of this application.
[0165] It should be noted that the computer-readable medium shown in the embodiments of this application can be a computer-readable signal medium or a computer-readable storage medium, or any combination of the two. A computer-readable storage medium can be, for example,—but not limited to—an electrical, magnetic, optical, electromagnetic, infrared, or semiconductor device, apparatus, or device, or any combination thereof. More specific examples of a computer-readable storage medium may include, but are not limited to: an electrical connection having one or more wires, a portable computer disk, a hard disk, random access memory (RAM), read-only memory (ROM), erasable programmable read-only memory (EPROM), flash memory, optical fiber, portable compact disc read-only memory (CD-ROM), optical storage device, magnetic storage device, or any suitable combination thereof. In this application, a computer-readable storage medium can be any tangible medium containing or storing a program that can be used by or in conjunction with an instruction execution apparatus, device, or device. In this application, a computer-readable signal medium can include a data signal propagated in baseband or as part of a carrier wave, carrying computer-readable program code. Such transmitted data signals can take various forms, including but not limited to electromagnetic signals, optical signals, or any suitable combination thereof. The computer-readable signal medium can also be any computer-readable medium other than a computer-readable storage medium, which can send, propagate, or transmit a program for use by or in connection with an instruction execution device, apparatus, or apparatus. The program code contained on the computer-readable medium can be transmitted using any suitable medium, including but not limited to wireless, wired, etc., or any suitable combination thereof.
[0166] Those skilled in the art will recognize that, in one or more of the examples above, the functions described in this application can be implemented using hardware, software, firmware, or any combination thereof. When implemented in software, these functions can be stored in a computer-readable storage medium or transmitted as one or more instructions or code on a computer-readable storage medium.
[0167] Through the above description of the embodiments, those skilled in the art can clearly understand that, for the sake of convenience and brevity, only the division of the above functional modules is used as an example. In actual applications, the above functions can be assigned to different functional modules as needed, that is, the internal structure of the device can be divided into different functional modules to complete all or part of the functions described above.
[0168] In the several embodiments provided in this application, it should be understood that the disclosed apparatus and methods can be implemented in other ways. For example, the apparatus embodiments described above are merely illustrative; for instance, the modular division is only a logical functional division, and other division methods may exist in actual implementation. For example, multiple units or components may be combined or integrated into another apparatus, or some features may be ignored or not executed.
[0169] It should be understood that this application is not limited to the precise structures described above and shown in the accompanying drawings, and various modifications and changes can be made without departing from its scope. The scope of this application is limited only by the appended claims.
Claims
1. A method of defogging an automobile air conditioner, characterized by, The air conditioner is provided with a first air intake duct and a second air intake duct, which are separated and the first air intake duct is located above the second air intake duct. The air inlet of the first air intake duct is provided with a first internal / external circulation damper, and the air inlet of the second air intake duct is provided with a second internal / external circulation damper. The defogging method of the automotive air conditioner includes: The external air circulation ratio corresponding to the non-fogging of car windows is obtained, and the amount of outside air entering the car is positively correlated with the external air circulation ratio. If a corresponding external circulation ratio exists, the internal and external circulation dampers are controlled based on the minimum external circulation ratio corresponding to the window not fogging, including: controlling the first internal and external circulation damper based on the minimum external circulation ratio corresponding to the window not fogging; if the first internal and external circulation damper reaches its limit opening and the external circulation ratio is less than the minimum external circulation ratio, the second internal and external circulation damper is then controlled based on the minimum external circulation ratio. If there is no corresponding external circulation ratio, control the internal and external circulation dampers to adjust to full internal circulation and switch the air conditioner to defogging mode.
2. The automotive air conditioning defogging method according to claim 1, characterized in that, The process of obtaining the external air circulation ratio corresponding to the non-fogging of the car windows includes: Will the car windows fog up if the external air circulation ratio is set to the highest percentage? If the car windows do not fog up, the first percentage will be used as the minimum external circulation percentage. If the car windows fog up, determine whether the car windows will fog up if the external circulation ratio is increased by a preset amount based on the first ratio. If the windows do not fog up when the external circulation ratio is increased by a preset amount, the external circulation ratio after the preset amount is increased will be used as the minimum external circulation ratio. If the windows fog up when the external air circulation ratio is increased by a preset amount, increase the external air circulation ratio again until the external air circulation ratio reaches the upper limit or the external air circulation ratio that prevents the windows from fogging up is obtained.
3. The automotive air conditioning defogging method according to claim 2, characterized in that, To determine if the car windows will fog up, include: The first temperature value obtained after summing the window dew point temperature and the temperature adjustment value is calculated. Compare the surface temperature of the car window with the first temperature value; If the surface temperature of the vehicle window is above the first temperature value, it is considered that the vehicle window will not fog up; if the surface temperature of the vehicle window is below the first temperature value, it is considered that the vehicle window will fog up.
4. The automotive air conditioning defogging method according to claim 1, characterized in that, Before obtaining the external air circulation ratio corresponding to the windshield not fogging, the following is also included: Obtain the dew point temperature and surface temperature of the vehicle window; obtaining the dew point temperature includes: It can acquire the relative humidity of the air inside the vehicle, the relative humidity of the air outside the vehicle, the air temperature inside the vehicle, the air temperature outside the vehicle, as well as the internal and external air circulation volumes. Based on the relative humidity and temperature of the air inside the vehicle, the enthalpy value and humidity content of the recirculated air are obtained. Based on the relative humidity and temperature of the air outside the vehicle, the enthalpy value and humidity content of the external circulating air are obtained. Based on the enthalpy of the internal circulating air, the enthalpy of the external circulating air, the moisture content of the internal circulating air, the moisture content of the external circulating air, the internal circulating air volume, and the external circulating air volume, the mixed air enthalpy and mixed air moisture content of the internal circulating air and the external circulating air are obtained. The dew point temperature of the vehicle window is obtained based on the enthalpy and moisture content of the mixed air.
5. The automotive air conditioning defogging method according to claim 4, characterized in that, The process of obtaining the enthalpy value and humidity content of the recirculated air based on the relative humidity and temperature of the air inside the vehicle includes: The relative humidity of the air inside the vehicle is corrected using a humidity correction factor to obtain the corrected relative humidity of the air inside the vehicle. The in-vehicle air temperature is corrected using a temperature correction coefficient to obtain the corrected in-vehicle air temperature. The corrected relative humidity and temperature of the in-vehicle air are mapped to obtain the enthalpy and humidity of the recirculated air.
6. The automotive air conditioning defogging method according to claim 1, characterized in that, Before obtaining the external air circulation ratio corresponding to the windshield not fogging, the following is also included: Adjust the internal and external circulation dampers to full internal circulation.
7. A defogging device for automotive air conditioning, characterized in that, The air conditioner is provided with a first air intake duct and a second air intake duct, which are separated and the first air intake duct is located above the second air intake duct. The air inlet of the first air intake duct is provided with a first internal / external circulation damper, and the air inlet of the second air intake duct is provided with a second internal / external circulation damper. The automotive air conditioning defrosting device includes: The processing module is used to obtain the external air circulation ratio corresponding to the non-fogging of the car windows. The amount of outside air entering the car is positively correlated with the external air circulation ratio. The control module is used to control the internal and external circulation dampers based on the minimum external circulation ratio corresponding to the window not fogging when a corresponding external circulation ratio exists. This includes: controlling the first internal and external circulation damper based on the minimum external circulation ratio corresponding to the window not fogging; if the first internal and external circulation damper reaches its maximum opening and the external circulation ratio is less than the minimum external circulation ratio, then controlling the second internal and external circulation damper based on the minimum external circulation ratio; and if no corresponding external circulation ratio exists, controlling the internal and external circulation dampers to adjust to full internal circulation and switching the air conditioning to defogging mode.
8. An electronic device, characterized in that, include: One or more processors; A memory for storing one or more computer programs that, when executed by one or more processors, cause the processors to implement the automotive air conditioning defogging method as described in any one of claims 1 to 6.
9. A computer-readable storage medium, characterized in that, The computer-readable storage medium stores computer-readable instructions that, when executed by a computer's processor, cause the computer to perform the automotive air conditioning defogging method as described in any one of claims 1 to 6.
Citation Information
Patent Citations
Pure electric vehicle energy-saving control system and method based on internal and external circulation air doors and medium
CN115195400A