Vehicle defrosting and defogging methods and devices

Abstract

This application discloses a defrosting and defogging method and apparatus for a vehicle; wherein, the method includes: if the vehicle switches to defrosting and defogging mode, controlling the vehicle's dehumidification device and heating device to switch to operating state respectively; controlling the heating device in operating state to heat the first airflow output by the dehumidification device in operating state to obtain a second airflow; detecting the humidity parameter and temperature parameter of the second airflow; if the humidity parameter and the temperature parameter meet the target conditions, controlling the output mode of the second airflow to remove frost or fog adhering to the vehicle window glass.

Description

Technical Field

[0001] This application relates to the field of vehicle technology, and in particular to a method and apparatus for defrosting and defogging a vehicle. Background Technology

[0002] To ensure driving safety, it is necessary to quickly remove frost or fog from the car windows while the vehicle is in motion. In practical applications, although the cold air blown from the air vents can defrost and defog after a period of time, the cold air blown from the air vents for a short period of time after the defrost / defog mode is activated not only fails to remove frost or fog from the car windows, but also exacerbates the fogging of the car windows. Summary of the Invention

[0003] Based on the above problems, this application provides a method and apparatus for defrosting and defogging a vehicle.

[0004] The technical solution provided in this application is as follows:

[0005] This application provides a method for defrosting and defogging a vehicle, the method comprising:

[0006] If the vehicle switches to defrosting and defogging mode, control the vehicle's dehumidification device and heating device to switch to operating status respectively;

[0007] The heating device, which is in operation, heats the first airflow output by the dehumidifying device, which is in operation, to obtain a second airflow.

[0008] The humidity and temperature parameters of the second airflow are detected;

[0009] If the humidity parameter and the temperature parameter meet the target conditions, the output mode of the second airflow is controlled to remove the frost or fog adhering to the car window glass.

[0010] In some embodiments, the method further includes:

[0011] Obtain the dehumidification temperature threshold; wherein the dehumidification temperature threshold is less than 0 degrees.

[0012] Obtain the ambient temperature;

[0013] If the ambient temperature is greater than or equal to the dehumidification temperature threshold, the dehumidification device is controlled to switch to the operating state and output the first airflow.

[0014] In some embodiments, the method of controlling the output of the second airflow includes:

[0015] Determine the temperature rise rate of the second airflow;

[0016] If the temperature rise rate is less than the target rate, the second airflow is output through the air outlet provided in the vehicle.

[0017] In some embodiments, detecting the humidity and temperature parameters of the second airflow includes:

[0018] During the process of the heating device outputting the second airflow, the humidity parameter and the temperature parameter are detected by a first sensor device associated with the heating device;

[0019] If the humidity parameter and the temperature parameter meet the target conditions, the output mode of the second airflow is controlled, including:

[0020] If the humidity parameter and the temperature parameter meet the target conditions, the second airflow is output from the first air outlet associated with the vehicle window glass.

[0021] In some embodiments, detecting the humidity and temperature parameters of the second airflow includes:

[0022] The operating status of the vehicle's air conditioning unit is obtained when the vehicle switches to the defrost and defog mode;

[0023] The second air outlet is determined based on the aforementioned operating status;

[0024] During the process of controlling the output of the second airflow from the second air outlet, the humidity parameter and the temperature parameter are detected by a second sensor device associated with the second air outlet.

[0025] In some embodiments, determining the second air outlet based on the operating state includes:

[0026] If the working state indicates that the vehicle has switched to the defrost and defog mode, and the air conditioning unit is in an off state, the first state of the vehicle driver and the second state of the vehicle passengers are obtained.

[0027] Based on the first state and the second state, the second air outlet is determined; wherein the degree of influence of the second air outlet on the driver and the vehicle passengers is less than a degree threshold.

[0028] In some embodiments, if the operating state indicates that the vehicle has switched to the defrost and defog mode, the air conditioning unit is in an off state, and the dehumidification device and heating device controlling the vehicle are switched to an operating state, including:

[0029] Start the air conditioning unit;

[0030] The air output volume of the air conditioning unit is determined as the target air output volume;

[0031] The dehumidifier is controlled to switch to the operating state with the target air volume, and the heating device is also controlled to switch to the operating state; wherein the dehumidifier is at least associated with the air conditioning device.

[0032] In some embodiments, determining the second air outlet based on the operating state includes:

[0033] If the vehicle's air conditioning unit was activated before the vehicle switched to the defrost and defog mode, obtain the air outlet mode of the air conditioning unit;

[0034] The air outlet associated with the air outlet mode is determined to be the second air outlet;

[0035] If the vehicle's air conditioning system is activated before the vehicle switches to the defrost / defogging mode, the process of controlling the vehicle's dehumidification and heating devices to switch to operating states includes:

[0036] The dehumidifier is controlled to switch to the operating state with the air volume associated with the air outlet mode, and the heating device is controlled to switch to the operating state; wherein the dehumidifier is associated with the air conditioning device.

[0037] In some embodiments, the method further includes:

[0038] Control the vehicle's air circulation mode to switch to external circulation mode.

[0039] This application embodiment also provides a vehicle defrosting and defogging device, the device comprising:

[0040] The control module is used to control the vehicle's dehumidification device and heating device to switch to operating state respectively when the vehicle switches to defrosting and defogging mode; and to control the heating device in operating state to heat the first airflow output by the dehumidification device in operating state to obtain a second airflow.

[0041] The detection module is used to detect the humidity and temperature parameters of the second airflow;

[0042] The control module is used to control the output mode of the second airflow if the humidity parameter and the temperature parameter meet the target conditions, so as to remove the frost or fog adhering to the car window glass.

[0043] This application also provides a vehicle that includes the defrosting and defogging device for vehicles as described above.

[0044] This application also provides a computer-readable storage medium storing a computer program; when the computer program is executed by a processor of an electronic device, it can implement the defrosting and defogging method for a vehicle as described above.

[0045] In the vehicle defrosting and defogging method provided in this application embodiment, if the vehicle switches to defrosting and defogging mode, the vehicle's dehumidification device and heating device are controlled to switch to operating state. Thus, the dehumidification and heating devices in operating state can dehumidify and heat the air inside the vehicle's cabin, making the second airflow a dry airflow, thereby improving the efficiency of defrosting and defogging the vehicle windows through the second airflow. Furthermore, by controlling the heating device in operating state to heat the first airflow output by the dehumidification device in operating state, the humidity of the first airflow heated by the heating device in operating state is reduced, thus improving the heating efficiency of the first airflow. Simultaneously, after detecting the humidity and temperature parameters of the second airflow, if the humidity and temperature parameters meet the target conditions, the output mode of the second airflow is controlled, thereby improving the speed and efficiency of defrosting and defogging through the second airflow, reducing the probability of increased fogging of the vehicle windows at the moment of second airflow output, and improving vehicle driving safety. Attached Figure Description

[0046] Figure 1 A schematic flowchart of a vehicle defrosting and defogging method provided in an embodiment of this application;

[0047] Figure 2 Another schematic flowchart of the vehicle defrosting and defogging method provided in the embodiments of this application;

[0048] Figure 3 Another schematic flowchart of the vehicle defrosting and defogging method provided in the embodiments of this application;

[0049] Figure 4 A schematic diagram illustrating the state recovery process after exiting the defrost and defogging mode, as provided in an embodiment of this application.

[0050] Figure 5 A schematic diagram of the structure of the defrosting and defogging device for a vehicle provided in an embodiment of this application;

[0051] Figure 6 This is a schematic diagram of the vehicle structure provided in an embodiment of this application. Detailed Implementation

[0052] The technical solutions in the embodiments of this application will be clearly and completely described below with reference to the accompanying drawings.

[0053] It should be understood that the specific embodiments described herein are merely illustrative of this application and are not intended to limit this application.

[0054] The reason why car windows fog up or condense is that the humidity inside the car is high, causing water vapor in the air inside the car to condense on the surface of the window glass. In practical applications, defrosting and defogging are usually achieved by either increasing the surface temperature of the window glass or decreasing the humidity inside the car. For example, when the vehicle's defrosting and defogging function is activated, the evaporator associated with the A / C function is turned on. During the process of refrigerant evaporation and heat absorption in the evaporator, moisture in the air inside the car is condensed, thus obtaining dry air. This dry air is then output to the interior of the car, thereby achieving the purpose of defrosting and defogging.

[0055] However, even after the vehicle's A / C function is activated, the humidity inside the cabin remains high for a short period. Therefore, when the defrost and defog functions are turned on, a large amount of cold, humid air will still blow onto the windows, exacerbating the fogging and seriously affecting driving safety.

[0056] To address the above problems, this application provides a vehicle defrosting and defogging method. It should be noted that the vehicle defrosting and defogging method provided in this application can be implemented using a vehicle processor. This processor can be at least one of the following: Application Specific Integrated Circuit (ASIC), Digital Signal Processor (DSP), Digital Signal Processing Device (DSPD), Programmable Logic Device (PLD), Field Programmable Gate Array (FPGA), Central Processing Unit (CPU), Controller, Micro Controller Unit (MCU), or Microprocessor.

[0057] Figure 1 This is a schematic flowchart of the vehicle defrosting and defogging method provided in the embodiments of this application, as shown below. Figure 1 As shown, the process may include the following steps:

[0058] Step 101: If the vehicle switches to defrost and defog mode, control the vehicle's dehumidification device and heating device to switch to operating status respectively.

[0059] For example, if the vehicle is not switched to defrost and defog mode, the dehumidification device and heating device can be switched to the operating state without control.

[0060] In one implementation, the defrosting and defogging mode can be activated automatically or in response to control by the vehicle user.

[0061] In one embodiment, the dehumidifier can provide the function of dehumidifying the air inside the vehicle compartment; for example, the dehumidifier may include an evaporator.

[0062] In one embodiment, the heating device can provide heating for the air inside the vehicle compartment; for example, the heating device may include a heater.

[0063] In one embodiment, the dehumidifier and the heating device can be controlled to switch to the operating state according to preset operating parameters; for example, the preset operating parameters may include default operating parameters or operating parameters set by the vehicle user.

[0064] Step 102: Control the heating device in operation to heat the first airflow output by the dehumidifying device in operation to obtain the second airflow.

[0065] In one embodiment, the dehumidifier can absorb air from inside or outside the vehicle compartment and perform a dehumidification operation on the air to obtain and output a first airflow.

[0066] Step 103: Detect the humidity and temperature parameters of the second airflow.

[0067] In one implementation, the humidity parameter can characterize the moisture content in the second airflow.

[0068] In one embodiment, the humidity and temperature parameters may include detection results obtained from instantaneous detection of the second airflow.

[0069] In one embodiment, the humidity and temperature parameters may include the result of statistically averaging the humidity and temperature parameters included in the multiple detection results obtained after performing multiple detections on the second airflow.

[0070] Step 104: If the humidity and temperature parameters meet the target conditions, control the output mode of the second airflow to remove the frost or fog adhering to the car window glass.

[0071] For example, if at least one of the humidity parameter and temperature parameter does not meet the target condition, the second airflow may not be output.

[0072] In one implementation, the target conditions may be preset.

[0073] In one implementation, the target conditions can be determined based on the environmental conditions of the vehicle's environment; wherein, the environmental conditions may include ambient temperature and ambient humidity, etc.

[0074] In one embodiment, controlling the output of the second airflow may include controlling the output time of the second airflow, whether it is continuously output, the duration of continuous output, the output air volume, the output air speed, the air outlet direction, and the number and / or location of the air outlets that output the second airflow.

[0075] In one embodiment, a second airflow can be output according to a preset airflow pattern to remove frost or fog adhering to the car window glass; for example, the preset airflow pattern may include airflow volume, airflow direction, and target air outlet, etc.

[0076] As can be seen from the above, in the vehicle defrosting and defogging method provided in this application embodiment, if the vehicle switches to defrosting and defogging mode, the vehicle's dehumidification device and heating device are controlled to switch to the operating state respectively. In this way, the dehumidification and heating devices in the operating state can achieve dehumidification and heating of the air inside the vehicle's cabin, thereby making the second airflow a dry airflow, which can improve the efficiency of defrosting and defogging the vehicle window glass through the second airflow. Furthermore, by controlling the heating device in the operating state to heat the first airflow output by the dehumidification device in the operating state, the humidity of the first airflow heated by the heating device in the operating state is reduced, thereby improving the heating efficiency of the first airflow. At the same time, after detecting the humidity and temperature parameters of the second airflow, if the humidity and temperature parameters meet the target conditions, the output mode of the second airflow is controlled, thereby improving the speed and efficiency of defrosting and defogging through the second airflow, reducing the probability of increased blurring of the vehicle window glass at the moment of second airflow output, and improving the driving safety of the vehicle.

[0077] Based on the foregoing embodiments, the vehicle defrosting and defogging method provided in this application may further include the following steps:

[0078] Obtain the dehumidification temperature threshold; obtain the ambient temperature; if the ambient temperature is greater than or equal to the dehumidification temperature threshold, control the dehumidification device to switch to the operating state and output the first airflow.

[0079] Among them, the dehumidification temperature threshold is less than 0 degrees.

[0080] For example, if the ambient temperature is lower than the dehumidification temperature threshold, the dehumidification device can be switched to the operating state without control.

[0081] In one implementation, the dehumidification temperature threshold can be preset, for example, it can be set by the vehicle manufacturer or the vehicle user; for instance, the vehicle manufacturer can determine it based on the physical characteristics of the evaporator.

[0082] In one implementation, ambient temperature can be obtained through a data acquisition device associated with the vehicle.

[0083] In one embodiment, the dehumidifier may be associated with an air conditioning unit; for example, the dehumidifier may be associated with the cooling mode of the air conditioning unit, such as an evaporator; for example, when the air conditioning unit switches to the cooling mode, the dehumidifier may switch to the operating state, and simultaneously acquire the initial airflow and perform dehumidification on the airflow, thereby obtaining and outputting the first airflow.

[0084] In practical applications, the prerequisite for activating the cooling mode is that the compressor can start normally. To prevent the evaporator from freezing and affecting the compressor's cooling effect, the compressor's starting temperature threshold is usually 0 degrees Celsius or above. However, in low-temperature environments around 0 degrees Celsius, the humidity inside the car may still be relatively high. In this case, if the evaporator is not activated, the high humidity inside the car cannot quickly complete the defrosting and defogging operation. Consequently, after the vehicle switches to defrosting and defogging mode, the air blowing towards the windows is too humid to achieve the defrosting and defogging function.

[0085] In this embodiment, the dehumidification temperature threshold is set to a temperature less than 0 degrees Celsius, so that the air conditioning unit can still switch to cooling mode in low-temperature environments, thereby achieving defrosting and defogging functions in low-temperature environments less than 0 degrees Celsius, which can improve the driving safety of the vehicle.

[0086] Based on the foregoing embodiments, the method for controlling the output of the second airflow in the vehicle defrosting and defogging method provided in this application can be implemented in the following ways:

[0087] Determine the temperature rise rate of the second airflow; if the temperature rise rate is less than the target rate, output the second airflow through the air outlet installed in the vehicle.

[0088] For example, if the rate of temperature rise is greater than or equal to the target rate, the dehumidifier, or the dehumidifier and the heating device, can be switched to a stop operation state.

[0089] In one implementation, temperature data of the second airflow can be collected at a specified frequency within a specified time period during which the second airflow output is detected, and the temperature data can be statistically analyzed to determine the temperature rise rate. For example, the specified time period can be preset, and the specified frequency can be greater than or equal to a frequency threshold to increase the amount of temperature data collected.

[0090] In one implementation, the target rate can be determined based on the physical parameters of the evaporator associated with the air conditioning unit; for example, the target rate can be the rate of temperature rise of the airflow flowing through the evaporator after being heated by the heater when the evaporator is in an icing state.

[0091] In one implementation, after the vehicle's air conditioning system switches to cooling mode, the dehumidification device, such as the evaporator, can switch to dehumidification mode. At this time, the temperature rise rate can be detected. If the temperature rise rate is greater than or equal to the target rate, it indicates that the vehicle's dehumidification device, such as the evaporator, is already in an icing state. Therefore, if the temperature rise rate is less than the target rate, outputting a second airflow can reduce the probability of evaporator damage caused by continuous icing.

[0092] As can be seen from the above, in the vehicle defogging and defrosting method provided in this application embodiment, when it is determined that the temperature rise rate of the second airflow is less than the target rate, the second airflow is output through the air outlet provided in the vehicle. Thus, when the target rate is associated with the icing state of the evaporator of the air conditioning unit, the above operation can reduce the probability of evaporator damage caused by continuous icing.

[0093] Based on the foregoing embodiments, in the vehicle defrosting and defogging method provided in this application, the detection of the humidity and temperature parameters of the second airflow can be achieved in the following ways:

[0094] During the process of the heating device outputting the second airflow, humidity and temperature parameters are detected by the first sensor device associated with the heating device.

[0095] In one embodiment, the first sensor device may include a humidity sensor and a temperature sensor.

[0096] In one embodiment, the first sensor device can be located on the airflow output side of the heating device to detect the second airflow processed by the heating device, thereby improving the accuracy of humidity and temperature parameters.

[0097] Accordingly, if the humidity and temperature parameters meet the target conditions, the output mode of the second airflow can be controlled in the following ways:

[0098] If the humidity and temperature parameters meet the target conditions, control the first air outlet associated with the vehicle window to output the second airflow.

[0099] For example, if at least one of the humidity parameter and temperature parameter does not meet the target condition, the output of the second airflow from the first air outlet may not be controlled.

[0100] In one embodiment, the first air outlet may include an air outlet located inside the vehicle compartment and adjacent to the vehicle window glass; for example, the air outlet of the first air outlet may be directed toward the vehicle window glass.

[0101] In one embodiment, if at least one of the humidity parameter and temperature parameter does not meet the target condition, the outlet of the heating device that outputs the second airflow may be the same as or different from the first air outlet.

[0102] In one embodiment, if at least one of the humidity parameter and temperature parameter does not meet the target condition, the component and velocity of the second airflow output by the heating device may be different from at least one of the air volume and velocity when the second airflow is output through the first air outlet.

[0103] In one embodiment, during the process of outputting the second airflow through the first air outlet, the adhesion status of frost or fog on the vehicle window glass can be detected in real time, and the airflow direction and airflow volume of the first air outlet can be adjusted in real time according to the adhesion status; for example, the adhesion status may include at least one of the area size, distribution area and thickness of the frost or fog attached to the vehicle window glass.

[0104] In one embodiment, during the process of outputting the second airflow through the first air outlet, the airflow volume of the first air outlet can be gradually increased, thereby shortening the defrosting or defogging time and improving the defrosting or defogging efficiency.

[0105] As can be seen from the above, in the vehicle defrosting and defogging method provided in this application embodiment, during the process of the heating device outputting the second airflow, the humidity parameters and temperature parameters are detected by the first sensor device associated with the heating device, thereby improving the accuracy of the humidity parameters and temperature parameters; and when the humidity parameters and temperature parameters meet the target conditions, the second airflow is output through the first air outlet associated with the vehicle window glass, thereby improving the targeting of the defrosting or defogging operation, shortening the execution time of the defrosting or defogging operation, and improving the defrosting or defogging efficiency.

[0106] Based on the foregoing embodiments, the vehicle defrosting and defogging method provided in this application can detect the humidity and temperature parameters of the second airflow through the following steps:

[0107] Step A1: Obtain the working status of the vehicle's air conditioning system when the vehicle switches to defrost / defog mode.

[0108] In one implementation, the operating status of the air conditioning unit can be detected when a switching command to defrost / defog mode is detected.

[0109] In one embodiment, the operating state of the air conditioning device may include any one of the following: start-up state, non-start-up state, cooling state, and heating state.

[0110] Step A2: Determine the second air outlet based on the working status.

[0111] In one implementation, a correlation can be established between the operating state and the air outlet. Thus, after obtaining the operating state, the air outlet that matches the actual operating state of the air conditioning unit, i.e., the second air outlet, can be determined based on the degree of matching between the actual operating state of the air conditioning unit and the operating state in the correlation.

[0112] In one embodiment, the second air outlet may include at least one air outlet.

[0113] Step A3: During the process of controlling the output of the second airflow from the second air outlet, humidity and temperature parameters are detected by the second sensor device associated with the second air outlet.

[0114] In one embodiment, the second sensor device can be located on the air outlet side of the second air outlet, thereby improving the accuracy of humidity and temperature parameters.

[0115] In one embodiment, the second sensor device may contain the same type of sensor as the first sensor device.

[0116] As can be seen from the above, in the vehicle defrosting and defogging method provided in this application embodiment, since the working state of the air conditioning device can directly affect the air state inside the vehicle, by acquiring the working state of the vehicle's air conditioning device when the vehicle switches to the defrosting and defogging mode, the impact of the operating state of the air conditioning device on the functional realization of the defrosting and defogging mode can be accurately determined; furthermore, by determining the second air outlet based on the working state, the second air outlet can be directly associated with the actual working state of the air conditioning device, thereby reducing the impact of the process of controlling the output of the second airflow from the second air outlet on the air volume output of the air conditioning device; at the same time, by detecting humidity and temperature parameters through the second sensor device associated with the second air outlet, the accuracy of humidity and temperature parameters can be improved.

[0117] Based on the foregoing embodiments, the vehicle defrosting and defogging method provided in this application, which determines the second air outlet based on the working state, can be achieved through the following steps:

[0118] Step B1: If the working status indicates that the air conditioning unit is not started when the vehicle is switched to defrost and defog mode, obtain the first status of the driver and the second status of the passengers.

[0119] For example, if the working state indicates that the air conditioning unit is in the start state when the vehicle switches to defrost and defog mode, then the first state of the vehicle driver and the second state of the vehicle passengers are not acquired.

[0120] In one implementation, the first state may include the driver's height, weight, and clothing, etc.

[0121] In one implementation, the second state may include the riding status of the vehicle passengers; for example, the riding status may include the seating position, height, weight, and clothing of the vehicle passengers.

[0122] In one embodiment, relevant data of the driver and passengers can be collected by a data acquisition device installed inside the vehicle compartment, and the relevant data can be used to perform feature recognition to obtain a first state and a second state; wherein, the data acquisition device may include an image acquisition device, a gravity detection device installed in the seat, and a temperature detection device, etc.

[0123] Step B2: Based on the first state and the second state, determine the second air outlet.

[0124] Among them, the impact of the second air outlet on the driver and vehicle passengers is less than the threshold.

[0125] In one implementation, the second air outlet is determined based on the first state and the second state, which can be achieved in any of the following ways:

[0126] Based on the first state and the second state, the upper limb height and / or upper limb width of the driver and the vehicle passenger are determined respectively. Then, based on the upper limb height and / or upper limb width, the air outlet whose air outlet range does not include the upper limb height and / or upper limb width is determined from the multiple air outlets of the vehicle as the second air outlet.

[0127] The system obtains the weather conditions of the vehicle's environment, determines the clothing of the driver and passengers based on the first and second conditions, and then, based on the weather conditions and clothing, selects the second air vent from multiple vents whose negative impact on passenger comfort is less than a threshold. For example, if the weather conditions indicate that the vehicle is in a low-temperature environment, and the first condition indicates that the driver and passengers are wearing warm shoes and socks, then the second air vent can be an air vent opposite or adjacent to the feet of the driver or passengers. This reduces the probability of the driver and passengers getting cold due to the airflow from the second air vent.

[0128] In one implementation, the degree threshold can be adjusted or determined based on environmental conditions including weather conditions, a first state, and a second state; however, this application does not limit this.

[0129] As can be seen from the above, in the vehicle defrosting and defogging method provided in this application embodiment, if the working state indicates that the vehicle has switched to defrosting and defogging mode and the air conditioning unit is not activated, then the first state of the driver and the second state of the passengers are obtained, and based on the first and second states, an air outlet whose impact on the driver and passengers is less than a threshold value is determined as the second air outlet. Thus, when the air conditioning unit is not activated, the second air outlet can be specifically determined according to the actual state of the driver and passengers in the vehicle. This not only reduces the dependence of the air conditioning unit's air outlet system on the second airflow output through the air outlet, but also allows for targeted and flexible determination of the second air outlet based on the actual driving and riding conditions of the vehicle. Furthermore, since the impact of the second air outlet on the driver and passengers is less than a threshold value, the negative impact of the airflow operation performed through the second air outlet on the driver and passengers can be weakened, improving the riding comfort in defrosting and defogging mode.

[0130] Based on the foregoing embodiments, in the vehicle defrosting and defogging method provided in this application embodiment, if the working state indicates that the vehicle has switched to defrosting and defogging mode and the air conditioning device is in an off state, controlling the vehicle's dehumidification device and heating device to switch to the operating state can be achieved in the following way:

[0131] Start the air conditioning unit; determine the air output volume of the air conditioning unit as the target air output volume; control the dehumidification unit to switch to the operating state at the target air output volume, and control the heating unit to switch to the operating state.

[0132] The dehumidification device is associated with the air conditioning device.

[0133] In one embodiment, the above-mentioned start-up and control process of the air conditioning unit can be implemented by the air conditioning controller of the air conditioning unit.

[0134] In one implementation, the target air volume may be less than the maximum air volume of the air conditioning unit.

[0135] In one implementation, the target air volume may be less than the average air volume of the air conditioning unit; wherein, the average air volume may include the statistical average of multiple air volumes during the historical operation of the air conditioning unit.

[0136] In one implementation, the target air volume can be the minimum air volume of the air conditioning unit.

[0137] In one implementation, the impact of the target air volume on the comfort of the vehicle's driver or passengers can be greater than a threshold value.

[0138] In one implementation, the target air volume can be set by the driver or vehicle passengers.

[0139] In one embodiment, the dehumidification device may include an evaporator.

[0140] In one implementation, after the air conditioning unit is switched to cooling mode, the dehumidifier can be switched to operating mode; for example, the air conditioning unit can be switched to cooling mode by triggering the vehicle's A / C function.

[0141] In one embodiment, the control of the operating status of the dehumidification device and the heating device can be performed sequentially or simultaneously, and this application embodiment does not limit this.

[0142] As can be seen from the above, in the vehicle defrosting and defogging method provided in this application embodiment, if the vehicle's air conditioning unit is not started when the vehicle switches to the defrosting and defogging mode, the air conditioning unit is started and the air output volume of the dehumidification device associated with the air conditioning unit is determined as the target air output volume. In this way, by adjusting the target air output volume, the dehumidification device can flexibly output air volume after switching to the operating state. Furthermore, by starting the air conditioning unit, dehumidification operation can be achieved by using the dehumidification device associated with the air conditioning unit's cooling mode, thereby realizing the reuse of the dehumidification device in different scenarios and reducing the hardware cost of dehumidification operation. At the same time, when the dehumidification device is controlled to switch to the operating state, the heating device is also controlled to switch to the operating state, thereby improving the efficiency of dehumidification and heating of the air in the vehicle compartment.

[0143] Based on the foregoing embodiments, the vehicle defrosting and defogging method provided in this application, which determines the second air outlet based on the working state, can also be implemented in the following ways:

[0144] If the vehicle's air conditioning system is activated before the vehicle switches to defrost / defog mode, obtain the air conditioning's air outlet mode; determine that the air outlet associated with the air outlet mode is the second air outlet.

[0145] For example, if the vehicle's air conditioning unit is not activated before the vehicle switches to defrost and defog mode, the air conditioning unit can be controlled to switch to the activated state using the method provided in the aforementioned embodiments.

[0146] In one embodiment, the air outlet mode of the air conditioner may include at least one of the following: air volume of the air conditioner, air outlet that outputs the air volume of the air conditioner, and the location of the air outlet that outputs the air volume of the air conditioner.

[0147] In one implementation, the second air outlet may include at least a portion of the air outlet corresponding to the current air outlet mode.

[0148] Accordingly, if the vehicle's air conditioning system is activated before the vehicle switches to defrost / defog mode, the dehumidification and heating systems can be switched to operating states in the following ways:

[0149] Control the dehumidifier to switch the air volume associated with the air outlet mode to the operating state, and control the heating device to switch to the operating state.

[0150] The dehumidification device is associated with the air conditioning device.

[0151] In one implementation, before controlling the air conditioning unit to switch to cooling mode, it can be determined whether the air conditioning unit is already in cooling mode. If the air conditioning unit is not in cooling mode, it can be controlled to switch to cooling mode. If the air conditioning unit is already in cooling mode, it can be kept in cooling mode.

[0152] In one implementation, the air volume associated with the air outlet mode may include the air volume of the air conditioning unit under the current air outlet mode.

[0153] As can be seen from the above, in the vehicle defrosting and defogging method provided in this application embodiment, when the vehicle switches to the defrosting and defogging mode, if the vehicle's air conditioning unit is in the starting state, the air outlet mode of the air conditioning unit is obtained, and the air outlet associated with the air outlet mode is determined as the second air outlet. In this way, the impact on the air outlet mode of the air conditioning unit in the running state can be reduced. Furthermore, the dehumidification device associated with the air conditioning unit is controlled to switch to the running state with the air volume associated with the air outlet mode, thereby reducing the impact on the air volume corresponding to the current air outlet mode of the air conditioning unit, simplifying the dehumidification process, and improving dehumidification efficiency. At the same time, when the dehumidification device is controlled to switch to the running state, the heating device is also controlled to switch to the running state, thereby improving the efficiency of dehumidification and heating of the air in the vehicle compartment.

[0154] Based on the foregoing embodiments, the vehicle dehumidification and defogging method provided in this application embodiment may further include the following steps before controlling the air conditioning device to switch to cooling mode:

[0155] Control the vehicle's air circulation mode to switch to external circulation mode.

[0156] In one implementation, before controlling the vehicle's air circulation mode to external circulation mode, it can be first determined whether the vehicle's air circulation mode is external circulation mode. If the air circulation mode is external circulation mode, it can be maintained in external circulation mode. If the air circulation mode is not external circulation mode, it can be switched to external circulation mode.

[0157] In one implementation, after the vehicle exits the defrost and defog mode, the vehicle's air circulation mode can be switched back to the initial mode; wherein, the initial mode can be the air circulation mode that the vehicle was in before switching to the defrost and defog mode.

[0158] Figure 2This is another schematic flowchart illustrating the vehicle defrosting and defogging method provided in an embodiment of this application. Figure 2 As shown, the method may include the following steps:

[0159] Step 201: When the air conditioning unit is not in operation, switch to defrost and defog mode.

[0160] For example, when the air conditioning unit is not activated, the vehicle can automatically or in response to an instruction from the vehicle user switch to defrost / defogging mode.

[0161] Step 202: Set the air circulation mode to external circulation mode, set the air conditioner's air outlet speed to level 1, turn on the A / C function and heater, control the fresh air flow through the evaporator and heater, and adjust the air outlet mode to foot blowing mode.

[0162] For example, the air volume corresponding to the first air outlet setting can be the target air volume in the aforementioned embodiments.

[0163] For example, enabling the A / C function can correspond to switching the air conditioning device to cooling mode in the aforementioned embodiments.

[0164] For example, the evaporator and heater may correspond to the dehumidification device and heating device in the foregoing embodiments, respectively.

[0165] For example, fresh air may include air drawn from the external environment of the vehicle when the vehicle is in external air circulation mode.

[0166] For example, the air outlet corresponding to the foot blowing mode may include a second air outlet in the aforementioned embodiment whose impact on the driver and vehicle passengers is less than a threshold.

[0167] Step 203: Determine whether the fresh air after dehumidification and heating meets the target conditions.

[0168] For example, the fresh air after dehumidification and heating can be the second airflow in the aforementioned embodiments.

[0169] For example, the humidity and temperature parameters of the fresh air after dehumidification and heating can be detected by a first sensor device associated with the heater or a second sensor device associated with the air outlet corresponding to the foot blowing mode, and it can be determined whether the humidity and temperature parameters meet the target conditions.

[0170] For example, if the dehumidified and heated fresh air meets the target conditions, step 204 can be executed; if the dehumidified and heated fresh air does not meet the target conditions, step 202 can be executed.

[0171] Step 204: Control the fresh air after dehumidification and heating to blow towards the car window glass, and gradually adjust the air conditioner's air outlet speed to the highest level.

[0172] For example, the fresh air after dehumidification and heating can be directed toward the car window glass through the first air outlet in the aforementioned embodiment.

[0173] For example, during the process of fresh air being blown onto the car window after dehumidification and heating, the air outlet speed of the air conditioning unit can be gradually adjusted to the highest level according to the actual state of frost or fog on the car window to accelerate defrosting and defogging and shorten the defrosting and defogging time.

[0174] Through the above process, when the vehicle switches to defrost and defogging mode without the air conditioning on, the system can flexibly and specifically control the working mode of the air conditioning unit, the vehicle's air circulation mode, and the activation status of the heater. At the same time, by judging whether the fresh air after dehumidification and heating meets the target conditions, the fresh air after dehumidification and heating can achieve targeted and efficient defrosting and defogging operations, thereby improving the vehicle's driving safety.

[0175] Figure 3 This is another schematic flowchart illustrating the vehicle defrosting and defogging method provided in this application embodiment. Figure 3 As shown, the method may include the following steps:

[0176] Step 301: When the air conditioner is on, switch to defrost and defog mode.

[0177] For example, when the air conditioning unit is on, the vehicle can automatically or in response to a vehicle user's instruction switch to defrost / defogging mode.

[0178] Step 302: Set the air circulation mode to external circulation mode, turn on the A / C function and heater, control the fresh air to flow through the evaporator and heater, keep the air conditioning unit at the current setting, and keep the air outlet mode at the current outlet mode.

[0179] For example, the current speed setting and current airflow mode may include the current fan speed setting and airflow method of the air conditioning unit.

[0180] For example, the air volume corresponding to the current gear can be the air volume associated with the air volume mode in the aforementioned embodiments.

[0181] Step 303: Determine whether the fresh air after dehumidification and heating meets the target conditions.

[0182] For example, the fresh air after dehumidification and heating can be the second airflow in the aforementioned embodiments.

[0183] For example, the humidity and temperature parameters of the fresh air after dehumidification and heating can be detected by a first sensor device associated with the heater or a second sensor device associated with the air outlet corresponding to the current air outlet mode, and it can be determined whether the humidity and temperature parameters meet the target conditions.

[0184] For example, if the dehumidified and heated fresh air meets the target conditions, step 304 can be executed; if the dehumidified and heated fresh air does not meet the target conditions, step 302 can be executed.

[0185] Step 304: Control the fresh air after dehumidification and heating to blow towards the car window glass, and gradually adjust the air conditioner's air outlet speed to the highest level.

[0186] For example, the fresh air after dehumidification and heating can be directed toward the car window glass through the first air outlet in the aforementioned embodiment.

[0187] For example, during the process of fresh air being blown onto the car window after dehumidification and heating, the air outlet speed of the air conditioning unit can be gradually adjusted to the highest level according to the actual state of frost or fog on the car window to accelerate defrosting and defogging and shorten the defrosting and defogging time.

[0188] Through the above process, when the vehicle switches to defrost and defogging mode while the air conditioning is on, the system can flexibly and specifically obtain the air outlet mode and air outlet speed of the air conditioning unit, control the vehicle's air circulation mode and the heater's activation status, and determine whether the dehumidified and heated fresh air meets the target conditions. This allows for targeted and efficient defrosting and defogging operations through the dehumidified and heated fresh air, thereby improving the vehicle's driving safety.

[0189] Figure 4 This is a schematic diagram of the state recovery process after exiting the defrost and defogging mode, as provided in the embodiments of this application. Figure 4 As shown, the process may include the following steps:

[0190] Step 401: Determine whether the defrosting and defogging operation is complete.

[0191] For example, the adhesion status of frost or fog on the vehicle window glass can be collected by the data acquisition device in the vehicle to determine whether the defrosting and defogging operation has been completed.

[0192] For example, it can be determined whether the defrosting and defogging operation is completed based on the command input by the vehicle user. For instance, if the vehicle user inputs a command to exit the defrosting and defogging mode, it can be determined that the defrosting and defogging operation has been completed.

[0193] For example, if the defrosting and defogging operation is completed, step 402 can be executed; if the defrosting and defogging operation is not completed, the process of the vehicle defrosting and defogging method provided in the foregoing embodiment can be executed.

[0194] Step 402: The air outlet mode, air circulation mode, A / C function, and heater status are all restored to their original states.

[0195] For example, the original state may include the air outlet mode of the air conditioning unit, the air circulation mode of the vehicle, the on state of the A / C function, and the start state of the heater before the vehicle switches to the defrost and defog mode.

[0196] Through the above steps, it is possible to determine in real time whether the defrosting and defogging operation has been completed, thereby achieving real-time and targeted control of the defrosting and defogging operation; and after the defrosting and defogging operation is completed, it is possible to restore the air outlet mode, air circulation mode, A / C function and heater status to their original states, thereby reducing the impact of the defrosting and defogging operation on the actual air handling operation of the vehicle.

[0197] As can be seen from the above, the vehicle defrosting and defogging method provided in this application embodiment controls the vehicle's air circulation mode to external circulation mode before controlling the air conditioning device to switch to cooling mode. In this way, in external circulation mode, the humidity of the air inside the vehicle can be quickly reduced through the dynamic exchange between the air outside the vehicle and the air inside the vehicle, and the cleanliness of the air inside the vehicle can also be improved.

[0198] Based on the foregoing embodiments, this application also provides a vehicle defrosting and defogging device. Figure 5 This is a schematic diagram of the structure of the vehicle defrosting and defogging device provided in the embodiments of this application, as shown below. Figure 5 As shown, the device may include:

[0199] The control module 501 is used to control the vehicle's dehumidification device and heating device to switch to the operating state when the vehicle switches to the defrosting and defogging mode; and to control the heating device in the operating state to heat the first airflow output by the dehumidification device in the operating state to obtain the second airflow.

[0200] The detection module 502 is used to detect the humidity and temperature parameters of the second airflow;

[0201] The control module 501 is used to control the output mode of the second airflow if the humidity and temperature parameters meet the target conditions, so as to remove frost or fog adhering to the car window glass.

[0202] In some embodiments, the control module 501 is used to obtain the dehumidification temperature threshold and obtain the ambient temperature;

[0203] If the ambient temperature is greater than or equal to the dehumidification temperature threshold, the dehumidification device is controlled to switch to the operating state and output the first airflow; wherein, the dehumidification temperature threshold is less than 0 degrees.

[0204] In some embodiments, the control module 501 is used to determine the temperature rise rate of the second airflow; if the temperature rise rate is less than the target rate, the second airflow is output through the air outlet provided in the vehicle.

[0205] In some embodiments, the detection module 502 is used to detect humidity parameters and temperature parameters by a first sensor device associated with the heating device during the process of the heating device outputting a second airflow.

[0206] The control module 501 is used to control the first air outlet associated with the vehicle window to output a second airflow if the humidity and temperature parameters meet the target conditions.

[0207] In some embodiments, the detection module 502 is used to acquire the working status of the vehicle's air conditioning unit when the vehicle switches to defrost and defog mode; determine the second air outlet based on the working status; and detect humidity parameters and temperature parameters through a second sensor device associated with the second air outlet during the process of controlling the output of the second air outlet to output the second airflow.

[0208] In some embodiments, the control module 501 is configured to, if the working state indicates that the air conditioning device is not started when the vehicle is switched to the defrost and defog mode, acquire the first state of the driver and the second state of the passenger; and determine the second air vent based on the first state and the second state; wherein the degree of influence of the second air vent on the driver and the passenger is less than a degree threshold.

[0209] In some embodiments, the control module 501 is used to start the air conditioning unit; determine the air output volume of the air conditioning unit as the target air output volume; control the dehumidification unit to switch to the operating state with the target air output volume, and control the heating unit to switch to the operating state; wherein the dehumidification unit is associated with the air conditioning unit.

[0210] In some embodiments, the control module 501 is configured to: if the vehicle's air conditioning unit is in an activated state before the vehicle switches to the defrost and defog mode, obtain the air outlet mode of the air conditioning unit; determine that the air outlet associated with the air outlet mode is a second air outlet; control the dehumidification unit to switch to an operating state with the air volume associated with the air outlet mode; and control the heating unit to switch to an operating state; wherein the dehumidification unit is associated with the air conditioning unit.

[0211] In some embodiments, the control module 501 is used to control the vehicle's air circulation mode to switch to external circulation mode.

[0212] Based on the foregoing embodiments, this application also provides a vehicle. Figure 6This is a structural schematic diagram of the vehicle provided in the embodiments of this application, such as... Figure 6 As shown, vehicle 6 may include the defrosting and defogging device 5 of the vehicle as previously shown.

[0213] Based on the foregoing embodiments, this application also provides a computer-readable storage medium storing a computer program; when the computer program is executed by a processor of an electronic device, it can implement the vehicle defrosting and defogging method provided in any of the preceding embodiments.

[0214] The description of the various embodiments above tends to emphasize the differences between the various embodiments. The similarities or similarities between them can be referred to, and for the sake of brevity, they will not be repeated here.

[0215] The methods disclosed in the various method embodiments provided in this application can be arbitrarily combined to obtain new method embodiments without conflict.

[0216] The features disclosed in the various product embodiments provided in this application can be arbitrarily combined without conflict to obtain new product embodiments.

[0217] The features disclosed in the various method or device embodiments provided in this application can be arbitrarily combined without conflict to obtain new method or device embodiments.

[0218] It should be noted that the aforementioned computer-readable storage media can be read-only memory (ROM), programmable read-only memory (PROM), erasable programmable read-only memory (EPROM), electrically erasable programmable read-only memory (EEPROM), magnetic random access memory (FRAM), flash memory, magnetic surface memory, optical disc, or compact disc read-only memory (CD-ROM), etc.; or it can be various electronic devices that include one or any combination of the above-mentioned memories, such as mobile phones, computers, tablet devices, personal digital assistants, etc.

[0219] It should be noted that, in this document, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such a process, method, article, or apparatus. Unless otherwise specified, an element defined by the phrase "comprising one..." does not exclude the presence of other identical elements in the process, method, article, or apparatus that includes that element.

[0220] The sequence numbers of the embodiments in this application are for descriptive purposes only and do not represent the superiority or inferiority of the embodiments.

[0221] Through the above description of the embodiments, those skilled in the art can clearly understand that the methods of the above embodiments can be implemented by means of software plus necessary general-purpose hardware nodes. Of course, they can also be implemented by hardware, but in many cases the former is a better implementation method. Based on this understanding, the technical solution of this application, in essence, or the part that contributes to the prior art, can be embodied in the form of a software product. This computer software product is stored in a storage medium (such as ROM / RAM, magnetic disk, optical disk) and includes several instructions to cause a terminal device (which may be a mobile phone, computer, server, air conditioner, or network device, etc.) to execute the methods described in the various embodiments of this application.

[0222] This application is described with reference to flowchart illustrations and / or block diagrams of methods, apparatus (systems), and computer program products according to embodiments of this application. It will be understood that each block of the flowchart illustrations and / or block diagrams, and combinations of blocks in the flowchart illustrations and / or block diagrams, can be implemented by computer program instructions. These computer program instructions can be provided to a processor of a general-purpose computer, special-purpose computer, embedded processor, or other programmable data processing apparatus to produce a machine, such that the instructions, which execute via the processor of the computer or other programmable data processing apparatus, generate instructions for implementing the flowchart... Figure 1 One or more processes and / or boxes Figure 1 A device that provides the functions specified in one or more boxes.

[0223] These computer program instructions may also be stored in a computer-readable storage medium that can direct a computer or other programmable data processing device to function in a particular manner, such that the instructions stored in the computer-readable storage medium produce an article of manufacture including instruction means, which are implemented in a process Figure 1 One or more processes and / or boxes Figure 1 The function specified in one or more boxes.

[0224] These computer program instructions may also be loaded onto a computer or other programmable data processing equipment to cause a series of operational steps to be performed on the computer or other programmable equipment to produce a computer-implemented process, thereby providing instructions that execute on the computer or other programmable equipment for implementing the process. Figure 1 One or more processes and / or boxes Figure 1 The steps of the function specified in one or more boxes.

[0225] The above are merely preferred embodiments of this application and do not limit the patent scope of this application. Any equivalent structural or procedural transformations made using the content of this application's specification and drawings, or direct or indirect applications in other related technical fields, are similarly included within the patent protection scope of this application.

Claims

1. A method for defrosting and defogging a vehicle, characterized in that, The method includes: If the vehicle switches to defrosting and defogging mode, control the vehicle's dehumidification device and heating device to switch to operating status respectively; The heating device, which is in operation, heats the first airflow output by the dehumidifying device, which is in operation, to obtain a second airflow. The humidity and temperature parameters of the second airflow are detected; If the humidity parameter and the temperature parameter meet the target conditions, the output mode of the second airflow is controlled to remove frost or fog adhering to the car window glass; if at least one of the humidity parameter and the temperature parameter does not meet the target conditions, the second airflow is not output. The method of controlling the output of the second airflow includes controlling at least one of the following: the output time of the second airflow, whether it is continuously output, the continuous output period, the output air volume, the output air speed, the air outlet direction, and the number and / or location of the air outlets that output the second airflow.

2. The method according to claim 1, characterized in that, The method further includes: Obtain the dehumidification temperature threshold; wherein the dehumidification temperature threshold is less than 0 degrees. Obtain the ambient temperature; If the ambient temperature is greater than or equal to the dehumidification temperature threshold, the dehumidification device is controlled to switch to the operating state and output the first airflow.

3. The method according to claim 1 or 2, characterized in that, The method for controlling the output of the second airflow also includes: Determine the temperature rise rate of the second airflow; If the temperature rise rate is less than the target rate, the second airflow is output through the air outlet provided in the vehicle.

4. The method according to claim 1, characterized in that, The detection of the humidity and temperature parameters of the second airflow includes: During the process of the heating device outputting the second airflow, the humidity parameter and the temperature parameter are detected by a first sensor device associated with the heating device; The step of controlling the output mode of the second airflow if the humidity parameter and the temperature parameter meet the target conditions further includes: If the humidity parameter and the temperature parameter meet the target conditions, the second airflow is output from the first air outlet associated with the vehicle window glass.

5. The method according to claim 1, characterized in that, The detection of the humidity and temperature parameters of the second airflow includes: The operating status of the vehicle's air conditioning unit is obtained when the vehicle switches to the defrost and defog mode; The second air outlet is determined based on the aforementioned operating status; During the process of controlling the output of the second airflow from the second air outlet, the humidity parameter and the temperature parameter are detected by a second sensor device associated with the second air outlet.

6. The method according to claim 5, characterized in that, Determining the second air outlet based on the operating state includes: If the working state indicates that the vehicle has switched to the defrost and defog mode, and the air conditioning unit is in an off state, the first state of the vehicle driver and the second state of the vehicle passengers are obtained. Based on the first state and the second state, the second air outlet is determined; wherein the degree of influence of the second air outlet on the driver and the vehicle passengers is less than a degree threshold.

7. The method according to claim 5, characterized in that, If the operating state indicates that the vehicle has switched to the defrost / defogging mode, the air conditioning unit is in a non-started state, and the dehumidification device and heating device controlling the vehicle are switched to the operating state, including: Start the air conditioning unit; The air output volume of the air conditioning unit is determined as the target air output volume; The dehumidifier is controlled to switch to the operating state with the target air volume, and the heating device is also controlled to switch to the operating state; wherein the dehumidifier is associated with the air conditioning device.

8. The method according to claim 5, characterized in that, Determining the second air outlet based on the operating state includes: If the vehicle's air conditioning unit was activated before the vehicle switched to the defrost and defog mode, obtain the air outlet mode of the air conditioning unit; The air outlet associated with the air outlet mode is determined to be the second air outlet; If the vehicle's air conditioning system is activated before the vehicle switches to the defrost / defogging mode, the process of controlling the vehicle's dehumidification and heating devices to switch to operating states includes: The dehumidifier is controlled to switch to the operating state with the air volume associated with the air outlet mode, and the heating device is controlled to switch to the operating state; wherein the dehumidifier is associated with the air conditioning device.

9. The method according to claim 7 or 8, characterized in that, The method further includes: Control the vehicle's air circulation mode to switch to external circulation mode.

10. A defrosting and defogging device for a vehicle, characterized in that, The device includes: The control module is used to control the vehicle's dehumidification device and heating device to switch to operating state respectively when the vehicle switches to defrosting and defogging mode; and to control the heating device in operating state to heat the first airflow output by the dehumidification device in operating state to obtain a second airflow. The detection module is used to detect the humidity and temperature parameters of the second airflow; The control module is further configured to: if the humidity parameter and the temperature parameter meet the target conditions, control the output mode of the second airflow to remove frost or fog adhering to the car window glass; if at least one of the humidity parameter and the temperature parameter does not meet the target conditions, then not output the second airflow. The control of the output mode of the second airflow includes controlling at least one of the following: the output time of the second airflow, whether it is continuously output, the continuous output period, the output air volume, the output air speed, the air outlet direction, and the number and / or position of the air outlets that output the second airflow.

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