Vehicle air conditioner and control method, device, and computer-readable storage medium thereof

Abstract

This application provides an in-vehicle air conditioner and its control method, device, and computer-readable storage medium. The in-vehicle air conditioner control method includes: determining whether the outside temperature is lower than the inside temperature; in response to determining that the outside temperature is lower than the inside temperature, predicting the critical moment of window fogging based on the number of people in the vehicle; and controlling the in-vehicle air conditioner to start defogging based on the critical moment of window fogging.

Description

Technical Field

[0001] This application relates to the field of vehicle air conditioning technology, specifically to a vehicle air conditioner and its control method, device, and computer-readable storage medium. Background Technology

[0002] In harsh environments such as low temperatures in winter, car windows are prone to fogging. Fog obstructs the driver's vision, making it difficult to clearly observe road conditions and seriously affecting driving safety. In such cases, the driver needs to manually turn on the car's air conditioning to defog. However, during this process, the driver cannot concentrate on driving, which can easily lead to accidents and compromise driving safety. Summary of the Invention

[0003] This application provides a vehicle air conditioner and its control method, device, and computer-readable storage medium, which can automatically perform defogging operations to ensure clear visibility for the driver and eliminate safety hazards caused by driver distraction.

[0004] In a first aspect, embodiments of this application provide a vehicle air conditioning control method, including: determining whether the outside temperature is lower than the inside temperature; in response to determining that the outside temperature is lower than the inside temperature, predicting the critical moment of window fogging based on the number of people in the vehicle; and controlling the vehicle air conditioning to start defogging based on the critical moment of window fogging.

[0005] In some embodiments, controlling the vehicle air conditioner to defog based on the critical moment of window fogging includes: when the critical moment of window fogging is reached, controlling the vehicle air conditioner to defog at a rapid defogging speed; when the window humidity is less than a first threshold humidity, controlling the vehicle air conditioner to decelerate to a comfortable defogging speed, the comfortable defogging speed being less than the rapid defogging speed; and turning off the vehicle air conditioner when the window humidity is less than a second threshold humidity, the second threshold humidity being less than the first threshold humidity.

[0006] In some embodiments, controlling the vehicle air conditioner to defog based on the critical moment of window fogging includes: when the critical moment of window fogging is reached, controlling the vehicle air conditioner to defog at a rapid defogging speed, and determining a first deceleration moment based on the rapid defogging speed and the number of people in the vehicle; when the vehicle air conditioner operates at the rapid defogging speed to the first deceleration moment, controlling the vehicle air conditioner to decelerate to a comfortable defogging speed, and determining a stop defogging moment based on the comfortable defogging speed and the number of people in the vehicle, wherein the comfortable defogging speed is less than the rapid defogging speed; and when the vehicle air conditioner operates at the comfortable defogging speed to the stop defogging moment, turning off the vehicle air conditioner.

[0007] In some embodiments, before controlling the vehicle air conditioner to perform defogging at the rapid defogging speed, the vehicle air conditioner control method includes: determining the rapid defogging speed and the comfortable defogging speed based on the number of people in the vehicle.

[0008] In some embodiments, before determining whether the outside temperature is lower than the inside temperature, the vehicle air conditioning control method includes: determining whether the outside temperature is higher than a first threshold temperature; and in response to determining that the outside temperature is not higher than the first threshold temperature, determining whether the outside temperature is lower than the inside temperature.

[0009] In some embodiments, the vehicle air conditioning control method includes: in response to determining that the outside temperature is greater than a first threshold temperature, determining a comfort cooling parameter based on the number of people in the vehicle, and controlling the vehicle air conditioning to provide cooling air based on the comfort cooling parameter.

[0010] In some embodiments, determining comfort cooling parameters based on the number of people in the vehicle and controlling the vehicle air conditioner to provide cooling air based on the comfort cooling parameters includes: determining a first comfortable cooling air speed, a second comfortable cooling air speed, a second deceleration time, and a stop cooling time based on the number of people in the vehicle, wherein the first comfortable cooling air speed is greater than the second comfortable cooling air speed; controlling the vehicle air conditioner to provide cooling air at the first comfortable cooling air speed; controlling the vehicle air conditioner to decelerate to the second comfortable cooling air speed when the vehicle air conditioner is running at the first comfortable cooling air speed to the second deceleration time; and turning off the vehicle air conditioner when the vehicle air conditioner is running at the second comfortable cooling air speed to the stop cooling time.

[0011] Secondly, embodiments of this application provide a vehicle air conditioning control device, including: a temperature judgment module configured to determine whether the outside temperature is lower than the inside temperature; a fogging calculation module configured to predict the critical moment of window fogging based on the number of people in the vehicle in response to determining that the outside temperature is lower than the inside temperature; and a defogging control module configured to control the vehicle air conditioning to start defogging based on the critical moment of window fogging.

[0012] Thirdly, embodiments of this application provide a vehicle air conditioner, including: a memory storing a computer program; and a processor, wherein the computer program, when executed by the processor, implements the vehicle air conditioner control method as described in any of the above embodiments.

[0013] Fourthly, embodiments of this application provide a computer-readable storage medium having a computer program stored thereon, the computer program being loaded by a processor to execute the steps in the vehicle air conditioning control method described above.

[0014] The vehicle air conditioning control method provided in this application can predict the critical moment of window fogging in advance, and control the vehicle air conditioning to automatically start to defog when the critical moment of window fogging is reached. In this way, on the one hand, the defogging action can be performed in time at the initial stage when the window faces the risk of fogging, so as to avoid the formation of obvious water fog on the window and obstructing the driver's vision, ensuring the driver's clear vision and driving safety; on the other hand, the vehicle air conditioning can be controlled to start automatically to defog, avoiding the risk of accidents caused by the driver being distracted to start the vehicle air conditioning. Attached Figure Description

[0015] To more clearly illustrate the technical solutions in the embodiments of this application, the accompanying drawings used in the description of the embodiments will be briefly introduced below. Obviously, the accompanying drawings described below are only some embodiments of this application. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0016] Figure 1 This is a flowchart of a vehicle air conditioning control method provided in some embodiments of this application;

[0017] Figure 2 This is a partial flowchart of a vehicle air conditioning control method provided in some embodiments of this application;

[0018] Figure 3 This is another partial flowchart of the vehicle air conditioning control method provided in some embodiments of this application;

[0019] Figure 4 This is another partial flowchart of the vehicle air conditioning control method provided in some embodiments of this application;

[0020] Figure 5 This is another partial flowchart of the vehicle air conditioning control method provided in some embodiments of this application;

[0021] Figure 6 This is another partial flowchart of the vehicle air conditioning control method provided in some embodiments of this application;

[0022] Figure 7 This is a structural diagram of a vehicle air conditioner provided in some embodiments of this application.

[0023] Explanation of key component symbols:

[0024] 1-Vehicle air conditioner, 10-Processor, 20-Memory. Detailed Implementation

[0025] The technical solutions of the embodiments of this application will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this application, and not all embodiments. Based on the embodiments of this application, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of this application.

[0026] In the description of this application, it should be understood that the terms "center," "longitudinal," "lateral," "length," "width," "thickness," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," and "outer," etc., indicating orientation or positional relationships based on the orientation or positional relationships shown in the accompanying drawings, are used only for the convenience of describing this application and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this application. Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of indicated technical features. Thus, features defined with "first" and "second" may explicitly or implicitly include one or more of the stated features. In the description of this application, "a plurality of" means two or more, unless otherwise explicitly specified.

[0027] "A and / or B" includes the following three combinations: A only, B only, and a combination of A and B.

[0028] The use of "applies to" or "configured to" in this application implies open and inclusive language, which does not exclude the applicability to or configuration to devices performing additional tasks or steps. Additionally, the use of "based on" implies openness and inclusivity, because processes, steps, calculations, or other actions "based on" one or more of the stated conditions or values ​​may in practice be based on additional conditions or values ​​beyond those stated.

[0029] In this application, the term "exemplary" is used to mean "used as an example, illustration, or description." Any embodiment described as "exemplary" in this application is not necessarily to be construed as being more preferred or advantageous than other embodiments. The following description is provided to enable any person skilled in the art to make and use this application. Details are set forth in the following description for purposes of explanation. It should be understood that those skilled in the art will recognize that this application can be made without using these specific details. In other instances, well-known structures and processes are not described in detail to avoid obscuring the description of this application with unnecessary detail. Therefore, this application is not intended to be limited to the embodiments shown, but is consistent with the broadest scope of the principles and features disclosed in this application.

[0030] like Figure 1 As shown, in a first aspect, embodiments of this application provide a vehicle air conditioning control method, which includes S10 to S30, enabling the vehicle to automatically perform defogging operations, ensuring clear visibility for the driver, and eliminating safety hazards caused by driver distraction.

[0031] S10: Determine if the outside temperature is lower than the inside temperature. Here, temperature measurements can be taken using temperature sensors located on the outside of the vehicle and inside the passenger compartment to obtain the values ​​of the outside temperature and the inside temperature.

[0032] S20: In response to determining that the outside temperature is lower than the inside temperature, predict the critical moment for window fogging based on the number of people inside the vehicle.

[0033] When the outside temperature is determined to be lower than the inside temperature, it indicates a risk of window fogging. Here, windows can include the front and rear windows and side windows of the vehicle. In this case, based on the number of people inside the vehicle, it can be predicted how long it will take for the windows to face the risk of fogging, thus obtaining the critical moment for window fogging. Here, the number of people inside the vehicle can be determined by measurement, for example, by monitoring cameras, infrared imagers, mass sensors, etc. installed in the passenger compartment; this application embodiment does not limit this.

[0034] The specific algorithm and steps for predicting the critical moment of window fogging based on the number of people in the vehicle can be determined according to actual needs, and this application embodiment does not limit this. In some embodiments, the amount of carbon dioxide and water vapor that may be generated in the passenger compartment per unit time can be determined based on the number of people in the vehicle. Then, the temperature rise rate in the passenger compartment can be determined based on the amount of carbon dioxide that may be generated per unit time, and the water vapor increase rate in the passenger compartment can be determined based on the water vapor that may be generated per unit time. The time point of window condensation and fogging can be predicted based on the temperature rise rate and water vapor increase rate in the passenger compartment, thereby obtaining the critical moment of window fogging. In some examples, the time point of window condensation and fogging can be further predicted based on the temperature rise rate and water vapor increase rate in the passenger compartment and the initial temperature difference between the inside and outside of the vehicle, thereby obtaining the critical moment of window fogging.

[0035] S30: Based on the critical moment of window fogging, control the vehicle's air conditioning to start defogging. When the critical moment of window fogging is reached, the windows may begin to fog up, but the degree of fogging is light and will not significantly obstruct the driver's vision. At this time, the vehicle's air conditioning can be automatically started to defog, promptly eliminating the initial water vapor and ensuring clear visibility through the windows.

[0036] Compared with related technologies, the vehicle air conditioning control method provided in this application can, on the one hand, perform defogging in a timely manner when the vehicle window is at risk of fogging, so as to avoid the formation of obvious water fog on the vehicle window and obstruct the driver's vision, thus ensuring the driver's clear vision and driving safety; on the other hand, it can control the vehicle air conditioning to start automatically to perform defogging, thus avoiding the risk of accidents caused by the driver being distracted when starting the vehicle air conditioning.

[0037] The specific steps for controlling the vehicle's air conditioning to activate defogging based on the critical moment of window fogging can be determined according to actual needs, and this application does not limit this. Figure 2 As shown, in some embodiments, S30 may include S31 to S33 to achieve defogging control of the vehicle air conditioner.

[0038] S31: When the critical moment for window fogging is reached, the vehicle's air conditioning is controlled to defog at a rapid defogging speed. Here, the rapid defogging speed can be a preset value in the vehicle's air conditioning system or it can be calculated based on current environmental parameters; this embodiment does not limit this. At the rapid defogging speed, the vehicle's air conditioning can deliver air at a relatively high speed, thereby quickly removing the main water fog from the target window in a short time, ensuring the driver's basic field of vision. The specific definition of the main water fog on the target window can be determined according to actual needs; this embodiment does not limit this. The basic field of vision required by the driver refers to the minimum field of vision required when performing driving operations such as driving forward, reversing, changing lanes / turning; it can be specifically determined according to actual needs; this embodiment does not limit this.

[0039] In some examples, the target window can be the windshield, and the main water fog on the target window can refer to the water fog on the windshield to ensure the driver's basic field of vision when the vehicle is moving forward; for example, the main water fog on the target window can be further defined as the water fog on the windshield located in front of the driver's seat, so as to restore the area on the windshield located in front of the driver's seat to a clear state as soon as possible, thereby ensuring the driver's basic field of vision when the vehicle is moving forward.

[0040] In other examples, the target window can be the rear window, and the main water mist on the target window can refer to the water mist on the rear window, so as to ensure the driver's basic field of vision when the vehicle is reversing; for example, the main water mist on the target window can be further defined as the water mist in the middle area of ​​the rear window, so as to restore the middle area of ​​the rear window to a clear state as soon as possible, thereby ensuring the driver's basic field of vision when the vehicle is reversing.

[0041] In some other examples, the target windows can be the windshield and the rear window. The main water mist on the target windows can refer to the water mist on the windshield and the rear window to ensure the driver's basic field of vision when the vehicle is moving forward and reversing. For example, the main water mist on the target windows can be further defined as the water mist in the area directly in front of the driver's seat on the windshield and the water mist in the middle area of ​​the rear window, so as to restore the area in front of the driver's seat on the windshield and the middle area of ​​the rear window to a clear state as soon as possible, thereby ensuring the driver's basic field of vision when the vehicle is moving forward and reversing.

[0042] In some further examples, the target window can be the windshield and the front side window on the target turning / lane change side. The main water mist on the target window can refer to the water mist on the windshield and the front side window on the target turning / lane change side, in order to ensure the driver's basic field of vision when the vehicle is moving forward and when turning / changing lanes. For example, the main water mist on the target window can be further defined as the water mist on the windshield in the area directly in front of the driver and the water mist on the front side window on the target turning / lane change side, in order to ensure the driver's basic field of vision when the vehicle is moving forward and when turning / changing lanes.

[0043] Based on the above introduction, a procedure for determining the rapid defogging wind speed can be provided. For example... Figure 3 As shown, in some examples, when the critical moment of window fogging is reached, and before the vehicle air conditioning is controlled to defog at the rapid defogging speed, S30 may also include S3011 to S3013 to determine the rapid defogging speed.

[0044] S3011: Determine the vehicle's driving trend.

[0045] Here, the vehicle's driving trend can include moving forward in a straight line, reversing, changing lanes to the left / turning, changing lanes to the right / turning, etc. The method for determining the vehicle's driving trend can be determined according to actual needs, and this application embodiment does not limit this. For example, the vehicle's driving trend can be predicted based on current driving parameters including the vehicle's signal light status and driving speed. For example, when the vehicle's left turn signal is on, the vehicle's driving trend can be determined to be changing lanes to the left / turning; when the vehicle's right turn signal is on, the vehicle's driving trend can be determined to be changing lanes to the right / turning; when the vehicle brakes to a stop and the vehicle's hazard lights are on, the vehicle's driving trend can be determined to be reversing; when neither the vehicle's turn signals nor the hazard lights are on, the vehicle's driving trend can be determined to be moving forward along the current lane.

[0046] S3012: Based on the vehicle's driving trend, determine the target window and the area on the target window that needs defogging.

[0047] After determining the vehicle's driving trend, the windows and areas on the windows that need to be defogged quickly can be identified as above. These are the target windows and areas on the target windows that need to be defogged.

[0048] For example, when the vehicle is traveling forward along the current lane, the target window can be determined to be the windshield, and the defogged area on the target window can be the entire area of ​​the windshield or limited to the area of ​​the windshield directly in front of the driver's seat.

[0049] For example, when the vehicle is moving backward, the target window can be determined to be the rear window, and the defrost area on the target window can be the entire area of ​​the rear window or limited to the middle area of ​​the rear window.

[0050] For example, when the vehicle is traveling along a left lane change / turn, the target windows can be determined to be the windshield and the front left side window. The defogged area on the target windows can be the entire area on the windshield and the front left side window, or it can be limited to the area on the windshield directly in front of the driver's seat and the area on the front left side window that allows observation of the left side mirror.

[0051] For example, when the vehicle's driving trend is to change lanes / turn to the right, the target windows can be determined to be the windshield and the front right side window. The defogged area on the target windows can be the entire area on the windshield and the front right side window, or it can be limited to the area on the windshield directly in front of the driver's seat and the area on the front right side window that can be observed in the right-side rearview mirror.

[0052] S3013: Determine the rapid defogging airflow speed based on the number of people in the vehicle, the target window, and the defogging area on the target window.

[0053] Based on the number of people in the vehicle, the target window, and the defogging area on the target window, the rate of temperature rise and moisture increase in the passenger compartment due to the breathing of the occupants, as well as the area requiring defogging, can be determined. This allows for the determination of the expected rapid defogging time and the rapid defogging wind speed. Here, the expected rapid defogging time can be a preset value in the vehicle's air conditioning system or a calculated value determined based on environmental parameters; this embodiment does not limit this.

[0054] By using S3011 to S3013, the rapid defogging airflow speed can be accurately and quickly determined. In particular, when determining the rapid defogging airflow speed based on S301 to S303, the area to be defogged based on the rapid defogging airflow speed is relatively small, which can effectively control the cooling capacity of this stage within a more comfortable range. For example, it can prevent the rapid defogging airflow speed from being too high, thus avoiding excessive air supply noise and airflow impact, and / or compress the duration of the rapid defogging airflow speed to a shorter range, thus avoiding excessive cooling or heating of the vehicle interior, thereby ensuring the comfort of the vehicle occupants.

[0055] S32: When the humidity of the car window is less than the first threshold humidity, control the car air conditioner to slow down to the comfortable defogging speed, which is less than the fast defogging speed.

[0056] Here, the first threshold humidity can be measured in real time by a humidity sensor installed on the car window. When the window humidity is less than the first threshold humidity, it indicates that the current clarity of the window, especially the current clarity of the target window, is sufficient to meet the driver's basic field of vision. At this time, the airflow speed of the car air conditioner can be appropriately reduced to a comfortable range, which can ensure a continuous defogging effect while avoiding excessive cold or heat inside the car, thereby ensuring driving safety and the comfort of the passengers.

[0057] S33: When the humidity of the car window is less than the second threshold humidity, turn off the car air conditioner. The second threshold humidity is less than the first threshold humidity.

[0058] Here, the second threshold humidity can be measured in real time by humidity sensors installed on the windows. When the window humidity is less than the second threshold humidity, it indicates that the water vapor in each window can be considered to be completely eliminated and the risk of window fogging has been completely eliminated. At this time, the car air conditioner can be temporarily turned off to avoid making the car interior too cold or too hot, ensuring driving safety and the comfort of the passengers.

[0059] like Figure 4 As shown, in some other embodiments, S30 may include S31' to S33' to achieve defogging control of the vehicle air conditioner through another control method.

[0060] S31': When the critical moment for window fogging is reached, control the vehicle air conditioner to defog at the rapid defogging speed, and determine the first deceleration time and the time to stop defogging based on the rapid defogging speed and the number of people in the vehicle.

[0061] Here, the first deceleration moment is the moment when the vehicle's air conditioning reduces its deceleration speed from rapid defogging to a comfortable defogging speed, and the defogging stop moment is the moment when the vehicle's air conditioning shuts down to stop defogging. Based on the number of people in the vehicle, the rate of temperature rise and moisture increase in the passenger compartment due to the breathing of the occupants can be determined; based on the number of people in the vehicle and the rapid defogging speed, the duration of the defogging phase based on the rapid defogging speed can be determined, thus determining the first deceleration moment. Furthermore, based on the rapid defogging speed, the number of people in the vehicle, the target window, and the defogging area on the target window, the duration of the defogging phase based on the rapid defogging speed can be determined, thus determining the first deceleration moment.

[0062] When the vehicle's air conditioning is running at the rapid defogging speed, it can quickly eliminate water vapor on the windows, especially the target window; and when the vehicle's air conditioning is running at the rapid defogging speed to the first deceleration moment, the water vapor on the defogging area of ​​the target window is completely eliminated.

[0063] S32': When the vehicle air conditioner is running at the rapid defogging speed to the first deceleration moment, control the vehicle air conditioner to decelerate to the comfortable defogging speed, and determine the time to stop defogging based on the comfortable defogging speed and the number of people in the vehicle. The comfortable defogging speed is less than the rapid defogging speed.

[0064] When the vehicle's air conditioning is running at the rapid defogging speed to the first deceleration point, it indicates that the current clarity of the windows, especially the target window, is sufficient to meet the driver's basic observation requirements. At this point, the air conditioning speed can be appropriately reduced to a comfortable range. This ensures a continuous defogging effect while avoiding excessive cold or heat inside the vehicle, thus guaranteeing driving safety and the comfort of the occupants.

[0065] Based on the number of people in the vehicle, the rate of temperature rise and the rate of water vapor increase in the passenger compartment due to the breathing of the occupants can be determined; and based on the comfortable defogging wind speed and the number of people in the vehicle, the operating time required to eliminate the remaining water vapor on each window based on the rapid defogging wind speed can be determined, and thus the time to stop defogging can be determined.

[0066] S33': When the vehicle air conditioner stops defogging at the comfortable defogging speed, turn off the vehicle air conditioner.

[0067] When the car air conditioner stops defogging at the comfortable defogging speed, it means that the water vapor in each window can be considered completely eliminated and the risk of fogging in the windows has been completely eliminated. At this time, the car air conditioner can be temporarily turned off to avoid making the car too cold or too hot, and to ensure driving safety and the comfort of the passengers.

[0068] In some embodiments, S30 may include S301 before S1 / S31'.

[0069] S301: Determine the fast defogging speed and the comfortable defogging speed based on the number of people in the vehicle.

[0070] like Figure 3 As shown, for example, S301 may include S3011 to S3013 to determine the rapid defogging wind speed. Please refer to the above description for details, which will not be repeated here.

[0071] like Figure 5 As shown, in some embodiments, the vehicle air conditioning control method may include S00 before S10.

[0072] S00: Determine if the outside temperature is greater than a first threshold temperature. In response to determining that the outside temperature is not greater than the first threshold temperature, execute S10 to determine if the outside temperature is less than the inside temperature. The first threshold temperature can be a preset value in the vehicle's air conditioning system, representing the critical state where the outside temperature causes window fogging. When the outside temperature is not greater than the first threshold temperature, it indicates that the outside temperature is low and the current outside environment is a severe environment that may cause window fogging, requiring further execution of S00 to determine if there is a risk of window fogging.

[0073] In some embodiments, the vehicle air conditioning control method may further include S40.

[0074] S40: In response to determining that the outside temperature is greater than a first threshold temperature, the vehicle determines the comfort cooling parameters based on the number of people in the vehicle, and controls the vehicle air conditioner to cool and blow air according to the comfort cooling parameters.

[0075] When the outside temperature is determined to be greater than the first threshold temperature, it indicates that the vehicle temperature is high and the current outside environment is unlikely to cause the windows to fog up, but it may cause the interior temperature to rise, resulting in a stuffy environment inside the vehicle. Cooling and ventilation can be activated to reduce the risk of stuffiness inside the vehicle and improve the comfort of the driver and passengers.

[0076] like Figure 6 As shown, in some examples, S40 may include S41 to S43.

[0077] S41: Determine the first comfortable cooling air speed, the second comfortable cooling air speed, the second deceleration time, and the cooling stop time based on the number of people in the vehicle.

[0078] Here, the cooling capacity required to reach a comfortable temperature in the passenger compartment can be determined based on the number of people in the vehicle. Then, based on the cooling capacity required to reach a comfortable temperature in the passenger compartment, the first comfortable cooling airflow speed, the second comfortable cooling airflow speed, the second deceleration time, and the cooling stop time can be determined. Here, the first comfortable cooling airflow speed is greater than the second comfortable cooling airflow speed. The second deceleration time is the time when the vehicle's air conditioning system reduces its speed from the first comfortable cooling airflow speed to the second comfortable cooling airflow speed. The cooling stop time is the time when the vehicle's air conditioning system shuts down to stop cooling. Furthermore, the first comfortable cooling airflow speed and the second deceleration time can be determined based on the number of people in the vehicle and the temperature difference between the inside and outside of the vehicle. Then, the second comfortable cooling airflow speed and the cooling stop time can be determined based on the number of people in the vehicle and the temperature difference between the inside and outside of the vehicle at the second deceleration time.

[0079] S42: Control the vehicle's air conditioning to cool and blow air at the first comfortable airflow speed.

[0080] When the car air conditioner is running at the first comfortable cooling speed, it can quickly lower the temperature inside the car and quickly eliminate the stuffy feeling of the passengers. When the car air conditioner runs at the first comfortable cooling speed to the second deceleration moment, the temperature inside the car has been quickly reduced to a comfortable temperature range and the passengers have eliminated the stuffy feeling.

[0081] S43: When the vehicle air conditioner is running at the first comfortable cooling speed to the second deceleration moment, control the vehicle air conditioner to decelerate to the second comfortable cooling speed.

[0082] When the vehicle's air conditioning system reaches the second deceleration point from the first comfortable cooling air speed, it indicates that the interior temperature has rapidly decreased to a comfortable range and the passengers have no longer felt stuffy. At this point, the air conditioning system's fan speed can be appropriately reduced to a comfortable range, i.e., the second comfortable cooling air speed. This ensures a continuous cooling effect while avoiding excessive cooling inside the vehicle, thus guaranteeing the comfort of the passengers.

[0083] S44: When the vehicle air conditioner is running at the second comfortable cooling speed until it stops cooling, turn off the vehicle air conditioner.

[0084] When the car air conditioner stops defogging at the second comfortable cooling speed, it indicates that the current temperature inside the car is completely within the comfortable range and the passengers will not feel stuffy for a long time. At this point, the car air conditioner can be temporarily turned off to avoid making the car too cold and to ensure the comfort of the passengers.

[0085] Secondly, embodiments of this application provide a vehicle air conditioning control device, which includes a temperature judgment module, a fogging calculation module, and a defogging control module. The temperature judgment module is configured to determine whether the outside temperature is lower than the inside temperature; the fogging calculation module is configured to predict the critical moment for window fogging based on the number of people in the vehicle in response to determining that the outside temperature is lower than the inside temperature; and the defogging control module is configured to control the vehicle air conditioning to start defogging based on the critical moment for window fogging.

[0086] like Figure 7 As shown, in a third aspect, embodiments of this application provide a vehicle air conditioner, which includes a processor 10 and a memory 20. The memory 20 stores a computer program, which, when executed by the processor 10, implements the vehicle air conditioner control method as described in any of the above embodiments. Of course, the vehicle air conditioner may also include, for example, a refrigeration unit, air vents, and other corresponding structures, which will not be elaborated further here.

[0087] Processor 10 is connected to memory 20 and can perform various actions and processes according to the program stored in memory 20. Specifically, processor 10 can be an integrated circuit chip with signal processing capabilities. The processor 10 can be a general-purpose processor, digital signal processor (DSP), application-specific integrated circuit (ASIC), off-the-shelf programmable gate array (FPGA), or other programmable logic device, discrete gate or transistor logic device, or discrete hardware component, and can implement or execute the methods, steps, and logic block diagrams disclosed in the embodiments of this application. The general-purpose processor can be a microprocessor or any conventional processor, and can be based on x86 architecture or ARM architecture.

[0088] Memory 20 may be volatile or non-volatile, or may include both. Non-volatile memory may be read-only memory (ROM), programmable read-only memory (PROM), erasable programmable read-only memory (EPROM), electrically erasable programmable read-only memory (EEPROM), or flash memory. Volatile memory may be random access memory (RAM) used as an external cache. By way of example, but not limitation, many forms of RAM are available, such as static random access memory (SRAM), dynamic random access memory (DRAM), synchronous dynamic random access memory (SDRAM), double data rate synchronous dynamic random access memory (DDRSDRAM), enhanced synchronous dynamic random access memory (ESDRAM), synchronous linked dynamic random access memory (SLDRAM), and direct memory bus random access memory (DRRAM). It should be noted that memory 20 of the methods described herein is intended to include, but is not limited to, these and any other suitable types of memory.

[0089] Fourthly, embodiments of this application provide a computer-readable storage medium having a computer program stored thereon, the computer program being loaded by a processor 10 to execute the steps in the control method of any of the above embodiments.

[0090] For example, the aforementioned computer-readable storage media may include, but are not limited to: magnetic storage devices (e.g., hard disks, floppy disks, or magnetic tapes), optical discs (e.g., CDs (Compact Disks), DVDs (Digital Versatile Disks), etc.), smart cards, and flash memory devices (e.g., EPROMs (Erasable Programmable Read-Only Memory), cards, sticks, or key drives, etc.). The various computer-readable storage media described in the embodiments of this application may represent one or more devices and / or other machine-readable storage media for storing information. The term "machine-readable storage medium" may include, but is not limited to, wireless channels and various other media capable of storing, containing, and / or carrying instructions and / or data.

[0091] The foregoing has provided a detailed description of an in-vehicle air conditioner and its control method, apparatus, and computer-readable storage medium provided in the embodiments of this application. Specific examples have been used to illustrate the principles and implementation methods of this application. The descriptions of the above embodiments are only for the purpose of helping to understand the methods and core ideas of this application. At the same time, for those skilled in the art, there will be changes in the specific implementation methods and application scope based on the ideas of this application. Therefore, the content of this specification should not be construed as a limitation of this application.

Claims

1. A method for controlling a vehicle air conditioner, characterized in that, include: Determine if the outside temperature is lower than the inside temperature. In response to determining that the outside temperature is lower than the inside temperature, the critical moment for window fogging is predicted based on the number of people inside the vehicle. Based on the critical moment when the car window fogs up, control the vehicle's air conditioning to start defogging; Before determining whether the outside temperature is lower than the inside temperature, the vehicle air conditioning control method includes: Determine if the outside temperature of the vehicle is greater than the first threshold temperature; In response to determining that the outside temperature is not greater than a first threshold temperature, determine whether the outside temperature is less than the inside temperature. In response to determining that the outside temperature is greater than a first threshold temperature, the vehicle determines a comfort cooling parameter based on the number of people in the vehicle, and controls the vehicle air conditioner to provide cooling air based on the comfort cooling parameter.

2. The vehicle air conditioning control method according to claim 1, characterized in that, Based on the critical moment of window fogging, control the vehicle's air conditioning to defog, including: When the critical moment for the windows to fog up is reached, the vehicle's air conditioning is controlled to defog at a rapid defogging speed. When the humidity of the car window is less than the first threshold humidity, the vehicle air conditioner is controlled to decelerate to a comfortable defogging speed, which is less than the rapid defogging speed. When the humidity level of the car window is less than the second threshold humidity level, the vehicle air conditioner is turned off. The second threshold humidity level is less than the first threshold humidity level.

3. The vehicle air conditioning control method according to claim 1, characterized in that, Based on the critical moment of window fogging, control the vehicle's air conditioning to defog, including: When the critical moment of the car window fogging is reached, the vehicle air conditioner is controlled to defog at a rapid defogging speed, and the first deceleration moment is determined based on the rapid defogging speed and the number of people in the vehicle. When the vehicle air conditioner is running at the rapid defogging speed to the first deceleration moment, the vehicle air conditioner is controlled to decelerate to the comfortable defogging speed, and the time to stop defogging is determined according to the comfortable defogging speed and the number of people in the vehicle. The comfortable defogging speed is less than the rapid defogging speed. When the vehicle air conditioner operates at the comfortable defogging speed until the defogging stops, the vehicle air conditioner is turned off.

4. The vehicle air conditioning control method according to claim 2 or 3, characterized in that, Before controlling the vehicle air conditioner to perform defogging at a rapid defogging fan speed, the vehicle air conditioner control method includes: The fast defogging speed and the comfortable defogging speed are determined based on the number of people in the vehicle.

5. The vehicle air conditioning control method according to claim 1, characterized in that, The comfort cooling parameters are determined based on the number of people in the vehicle, and the vehicle's air conditioning is controlled to provide cooling and airflow based on these parameters, including: The first comfortable cooling air speed, the second comfortable cooling air speed, the second deceleration time, and the time when cooling stops are determined based on the number of people in the vehicle. The first comfortable cooling air speed is greater than the second comfortable cooling air speed. The vehicle air conditioner is controlled to cool and blow air at the first comfortable airflow speed. When the vehicle air conditioner is running at the first comfortable cooling air speed to the second deceleration moment, the vehicle air conditioner is controlled to decelerate to the second comfortable cooling air speed. When the vehicle air conditioner operates at the second comfortable cooling speed until the time when cooling stops, the vehicle air conditioner is turned off.

6. A vehicle air conditioning control device, characterized in that, include: The temperature detection module is configured to determine whether the outside temperature is lower than the inside temperature. The fogging calculation module is configured to predict the critical moment for window fogging based on the number of people in the vehicle in response to determining that the outside temperature is lower than the inside temperature. The defogging control module is configured to control the vehicle air conditioning to start defogging based on the critical moment when the windows fog up; The cooling air supply module is configured to perform the following cooling air supply operations before determining whether the outside temperature is lower than the inside temperature: Determine if the outside temperature of the vehicle is greater than the first threshold temperature; In response to determining that the outside temperature is not greater than a first threshold temperature, determine whether the outside temperature is less than the inside temperature. In response to determining that the outside temperature is greater than a first threshold temperature, the vehicle determines a comfort cooling parameter based on the number of people in the vehicle, and controls the vehicle air conditioner to provide cooling air based on the comfort cooling parameter.

7. A vehicle air conditioner, characterized in that, include: Memory, which stores computer programs; A processor, wherein the computer program, when executed by the processor, implements the vehicle air conditioning control method as described in any one of claims 1 to 5.

8. A computer-readable storage medium, characterized in that, It stores a computer program, which is loaded by a processor to execute the steps of the vehicle air conditioning control method according to any one of claims 1 to 5.

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