Method for removing condensate on window of vehicle, controller for vehicle, and vehicle

By using image recognition and environmental sensors to determine the location of condensation, and combining this with the windshield wipers and air conditioning system, the problem of distinguishing and removing condensation from the inside and outside of vehicle windows is solved, improving visibility and driving safety.

CN121590481APending Publication Date: 2026-03-03MERCEDES BENZ GRP
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Patent Information

Application Number
CN202610042253.8
Authority / Receiving Office
CN · China
Patent Type
Applications(China)
Current Assignee / Owner
Filing Date
2026-01-13
Publication Date
2026-03-03

AI Technical Summary

Technical Problem

Existing technologies are unable to effectively distinguish and remove condensation from the inside and outside of vehicle window glass, leading to improper removal methods and failure to completely remove condensation.

Method used

The system uses image recognition, ambient temperature and humidity sensors to determine whether the condensate is on the inside or outside, and then uses windshield wipers and the air conditioning system to remove it in a targeted manner.

Benefits of technology

It enables accurate identification and efficient removal of condensate, improving the transparency of the window glass and ensuring driving safety and user experience.

✦ Generated by Eureka AI based on patent content.

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Abstract

The present application proposes a method for removing condensate on a window pane of a vehicle. The method comprises: a determination step in which it is determined whether or not there is a condensate on the window glass; a determination step for determining whether the condensate on the window glass is on the inner side of the window glass or on the outer side of the window glass; and a removal step in which an outer condensate removal operation is triggered with respect to the condensate on the outer side of the window glass and an inner condensate removal operation is triggered with respect to the condensate on the inner side of the window glass. The invention further relates to a corresponding controller for the vehicle and the vehicle. The method has the advantages that whether the condensate on the window glass is located on the inner side or the outer side of the window glass can be judged, and the condensate is effectively removed through the corresponding removal action.
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Description

Technical Field

[0001] This application relates to a method for removing condensation from the window glass of a vehicle, a controller for a vehicle, and a vehicle. Background Technology

[0002] Due to temperature and humidity, condensation or fogging can form on vehicle windows. The visibility of windows, especially the windshield and rear window, is crucial for safe driving. Condensation can form on either the outside or inside of the window. Different methods are typically required to remove condensation from the inside and outside of the window. Incorrect removal methods will not be effective. Summary of the Invention

[0003] The purpose of this application is to provide a method for removing condensation from vehicle window glass, which enables the determination of whether the condensation is on the inside or outside of the window glass and to effectively remove the condensation accordingly.

[0004] According to a first aspect of this application, a method for removing condensation from a vehicle window is provided, the method comprising: The determination step involves determining whether there is condensation on the window glass; The determination step involves determining whether the condensation on the window glass is on the inside or outside of the window glass. The removal step involves triggering an outer condensate removal action for condensate on the outer side of the window glass and triggering an inner condensate removal action for condensate on the inner side of the window glass.

[0005] The removal of condensate from the outside and the removal of condensate from the inside should be understood as different removal actions.

[0006] According to an optional embodiment of this application, the window glass is any one of the windshield, rear windshield, side window glass, and sunroof glass of the vehicle.

[0007] According to an optional embodiment of this application, the determination step includes a first determination step, in which image recognition is used to determine whether the condensate is on the inside or outside of the window glass.

[0008] According to an optional embodiment of this application, in the image recognition, the determination is made based on the distribution of the condensate on the window glass.

[0009] According to an optional embodiment of this application, if the condensate meets a preset condition of large-area uniform distribution on the window glass, it is determined that the condensate is more likely to be on the inside of the window glass; if the condensate is only partially present on the window glass in the area directly opposite the air outlet of the ventilation device for the window glass in the vehicle, it is determined that the condensate is more likely to be on the outside of the window glass.

[0010] According to an optional embodiment of this application, if the condensate is only locally present on the window glass in the area directly opposite the air outlet of the ventilation device for the window glass inside the vehicle, then it is determined that the condensate is on the outside of the window glass. If the condensate on the window glass meets a preset large-area uniform distribution condition, then it is further determined whether the outside ambient temperature is lower than a preset cold temperature threshold, whether the inside dew point temperature is lower than a preset dew point temperature threshold, and whether the inside ambient temperature is lower than a preset low temperature threshold. If so, it is determined that the condensate is on the inside of the window glass, and / or it is further determined whether the outside ambient temperature is higher than a preset warm temperature threshold, whether the inside dew point temperature is higher than a preset dew point temperature threshold, and whether the vehicle is under preset geographical conditions. If so, it is determined that the condensate is on the outside of the window glass. The preset dew point temperature threshold is in particular 5 degrees Celsius, and the preset geographical conditions include at least a tunnel.

[0011] According to an optional embodiment of this application, the determination step includes a second determination step, which includes: a dew point temperature determination step, wherein the vehicle interior dew point temperature is determined based on the vehicle interior humidity and the vehicle interior ambient temperature; and / or a comparison step, wherein the temperature of the window glass is compared with the vehicle interior dew point temperature, and if the vehicle interior dew point temperature is greater than or equal to the window glass temperature, it is determined that the condensate is on the inside of the window glass, and if the vehicle interior dew point temperature is less than the window glass temperature, it is determined that the condensate is on the outside of the window glass; and / or a window glass temperature determination step, wherein if the vehicle's air conditioning system is on, the set temperature of the air conditioning system is determined as the window glass temperature, and if the vehicle's air conditioning system is not on, the outside ambient temperature is determined as the window glass temperature.

[0012] According to an optional embodiment of this application, the determination step includes a third determination step, in which the external ambient temperature is compared to a first temperature threshold characterizing low water vapor content, and if the external ambient temperature is lower than the first temperature threshold, the condensate is determined to be on the inside of the window glass, and / or, the external ambient temperature is compared to a second temperature threshold characterizing high water vapor content, and if the external ambient temperature is higher than the second temperature threshold, the condensate is determined to be on the outside of the window glass.

[0013] According to an optional embodiment of this application, the first temperature threshold is 10 degrees Celsius.

[0014] According to an optional embodiment of this application, the second temperature threshold is 25 degrees Celsius.

[0015] According to an optional embodiment of this application, in the determination step, a first determination step is first executed; if the first determination step fails to execute successfully, a second determination step is executed; if the second determination step fails to execute successfully, a third determination step is executed.

[0016] According to an optional embodiment of this application, the external condensate removal action includes activating the windshield wipers.

[0017] According to an optional embodiment of this application, the external condensate removal action includes shutting off the ventilation device used for the window glass. This is particularly true when the condensate is only locally present in the area directly opposite the air outlet of the ventilation device.

[0018] According to an alternative embodiment of this application, the internal condensate removal action includes blowing air onto the window glass using the vehicle's air conditioning system.

[0019] According to an optional embodiment of this application, in the determining step, the presence of condensation on the window glass is determined based on an image of the window glass captured by a camera of the vehicle.

[0020] According to an alternative embodiment of this application, in the determining step, image recognition based on a neural network model is used to determine whether there is condensation on the window glass.

[0021] According to an optional embodiment of this application, in the determining step, the coverage area and / or coverage position of the condensate on the window glass is additionally determined, and in the removing step, the outer condensate removal action and / or the inner condensate removal action are adjusted accordingly based on the coverage area and / or coverage position.

[0022] According to a second aspect of this application, a controller for a vehicle is provided, the controller including a processor and a memory, the memory storing computer program instructions, which, when executed by the processor, enable the processor to perform the aforementioned method for removing condensation from the window glass of a vehicle.

[0023] According to a third aspect of this application, a vehicle is provided, the vehicle including the aforementioned controller for the vehicle.

[0024] At least in some embodiments, the positive effects of this application are: it can determine whether the condensate is on the inside or outside of the window glass, thereby effectively removing the condensate in a targeted manner; it can accurately determine whether the condensate is on the inside or outside of the window glass by using the dew point temperature inside the vehicle and the temperature of the window glass; it can easily and quickly determine whether the condensate is on the inside or outside of the window glass by using the ambient temperature outside the vehicle; and it can accurately and efficiently remove the condensate based on the coverage area and location of the condensate. Attached Figure Description

[0025] The principles, features, and advantages of this application will be better understood below with reference to the accompanying drawings. The drawings include: Figure 1 An example of the vehicle described in this application is shown schematically; Figure 2 This illustration schematically shows an example of the process of the method of this application for removing condensation from the window glass of a vehicle; Figure 3 The illustration shows an example of a large area of ​​condensation evenly distributed on the inside of a window pane; Figure 4 The illustration shows an example of condensation that is only partially distributed on the outside of a window, in the area directly opposite the air vent. Figure 5 A table illustrating the determination of the vehicle interior dew point temperature using in-vehicle humidity and ambient temperature is provided. Figure 6 This illustration shows another example of the process of the method of this application for removing condensation from the window glass of a vehicle; Figure 7 An example of the vehicle described in this application is shown; Figure 8 This schematically illustrates an example of the full wiping range of a windshield wiper, the location of condensation coverage, and the actual wiping range of the wiper. Detailed Implementation

[0026] To make the technical problems to be solved, the technical solutions, and the beneficial technical effects of this application clearer, the application will be further described in detail below with reference to the accompanying drawings and several exemplary embodiments. It should be understood that the specific embodiments described herein are only for explaining this application and are not intended to limit the scope of protection of this application.

[0027] Figure 1 An example of vehicle 2 of this application is illustrated schematically. Vehicle 2 is in particular a passenger car, such as a sedan, SUV, or MPV, but may also be a commercial vehicle or other type of vehicle 2.

[0028] Vehicle 2 has window glass 3. Window glass 3 may in particular refer to a windshield, rear windshield, side windows, and / or sunroof. Occupants of vehicle 2 can observe the exterior of vehicle 2 from inside vehicle 2 through window glass 3. This application relates particularly to windshields, but theoretically it can also be applied to other types of window glass 3 mentioned above.

[0029] Especially in relation to temperature and humidity, condensation, or fogging, will form on the window glass 3 of vehicle 2. Figure 1 In the diagram, the curve on window glass 3 represents condensation 4. Condensation 4 affects the transparency of window glass 3. This transparency is particularly important for the windshield and rear windshield, as it is directly related to driving safety. For side windows and sunroofs, transparency also affects the user experience to some extent.

[0030] Therefore, if there is condensation 4 on the window glass 3 of vehicle 2, it is necessary to remove the condensation 4 in a timely manner.

[0031] Figure 2 The illustration shows an example of the process of the method of this application for removing condensation 4 from the window glass 3 of a vehicle 2.

[0032] like Figure 2 As shown, the method includes: In step 10, determine whether there is condensation 4 on the window glass 3; In step 12, it is determined whether the condensate 4 on the window glass 3 is on the inside or outside of the window glass 3. In step 14, an outer condensate removal action is triggered for the condensate 4 on the outside of the window glass 3, and an inner condensate removal action is triggered for the condensate 4 on the inside of the window glass 3.

[0033] In particular, by distinguishing whether the condensate 4 is on the inside or outside of the window glass 3, it is possible to effectively remove the condensate 4 in a targeted manner.

[0034] According to an exemplary embodiment of this application, see Figure 1 In step 10, the presence of condensation 4 on the window glass 3 is determined based on images captured by camera 23 of vehicle 2. Camera 23 is, for example, an interior camera of vehicle 2.

[0035] In step 10, the presence of condensation 4 on the window glass 3 is determined, in particular, through image recognition. Image recognition can be achieved, for example, using a traditional classifier or a neural network model. The neural network model is particularly a convolutional neural network model.

[0036] According to an exemplary embodiment of this application, see Figure 2 The judgment step 12 includes a first judgment step 121, in which image recognition is used to determine whether the condensate 4 is inside or outside the window glass 3.

[0037] In particular, in image recognition, the judgment is based on the distribution of condensate 4 on the window glass 3.

[0038] Figure 3 An example of a large area of ​​condensate 4 evenly distributed on the inside of the window glass 3 is shown schematically.

[0039] Figure 4 An example of condensation 4 is schematically shown on the outer side of the window glass 3, in the area directly opposite the air outlet 22.

[0040] exist Figure 3 and Figure 4 In the diagram, multiple points are used to schematically represent condensate 4.

[0041] For example, if the condensate 4 meets the preset condition of large-area uniform distribution on the window glass 3 (see...) Figure 3 If the condensate 4 is only partially present on the window glass 3, it is determined that the condensate 4 is more likely to be on the inside of the window glass 3; if the condensate 4 is only partially present on the window glass 3 by the ventilation device 24 for the window glass 3 inside the vehicle 2 (see... Figure 5 The area directly opposite the air outlet 22 (see) Figure 4 If the condensate 4 is located on the outside of the window glass 3, then it is more likely that the condensate 4 is located on the outside of the window glass 3. Especially when the ventilation device 24 is activated, the area directly opposite the air outlet 22 is prone to forming the area with the greatest temperature difference between the inside and outside of the window glass 3, which makes it easy for fog to form.

[0042] The statement "It is more likely that the condensate 4 is on the inside of the window glass 3" can specifically cover the following two situations: In the first situation, it is directly determined that the condensate 4 is on the inside of the window glass 3; in the second situation, the determination may not be based on the condition that the condensate 4 is uniformly distributed over a large area, but rather on a comprehensive consideration of other factors. The statement "It is more likely that the condensate 4 is on the outside of the window glass 3" can be understood similarly.

[0043] Specifically, if condensate 4 forms in the area of ​​the window glass 3 opposite to the air vent 22, it can be determined that condensate 4 forms on the outer side of the window glass. If condensate 4 is widely and uniformly distributed on the window glass 3, there are two possible reasons: a) The weather outside the vehicle is cold and the dew point temperature inside the vehicle is low (e.g., dew point temperature <= 5°C), the air conditioning system 21 of vehicle 2 has not been started or has been started for a short time, and the temperature inside the vehicle is still quite low. In this case, condensate 4 is mainly caused by the condensation of moisture from the breath of the occupants of vehicle 2 on the inner side of the window glass, and condensate 4 usually forms on the inner side of the window glass; b) The outside temperature is relatively warm (which can be determined by an external temperature sensor or weather service), the dew point temperature inside the vehicle is relatively high (e.g., dew point temperature > 5°C), and the vehicle is driving in a tunnel (which can be determined by GPS and navigation / map information). In this case, condensate 4 usually forms on the outer side of the window glass 3. Alternatively, pre-set geographical conditions similar to tunnels can also be considered, such as underground parking garages, canyons, mountain passes, and / or wetlands. Such pre-set geographical conditions, for example, are warm and humid, which makes it easy for fog to form on the outside of the window glass 3.

[0044] See Figure 2 The judgment step 12 may include a second judgment step 122.

[0045] According to an exemplary embodiment of this application, the second determination step 122 includes a dew point temperature determination step 1221, in which the vehicle interior dew point temperature is determined based on the vehicle interior humidity and the vehicle interior ambient temperature.

[0046] The humidity inside the vehicle can be detected using an in-vehicle humidity sensor. The ambient temperature inside the vehicle can be detected using an in-vehicle temperature sensor.

[0047] Figure 5 This diagram illustrates a table for determining the vehicle interior dew point temperature using in-vehicle humidity and ambient temperature. The first column from the left represents the in-vehicle humidity as relative humidity, and the first row from the top represents the in-vehicle ambient temperature in Fahrenheit. The area enclosed in dashed lines represents the in-vehicle dew point temperature corresponding to the humidity and ambient temperature. Here, the in-vehicle dew point temperature is also expressed in Fahrenheit.

[0048] According to an exemplary embodiment of this application, see Figure 2 The second judgment step 122 includes a comparison step 1222, in which the temperature of the window glass 3 is compared with the dew point temperature inside the vehicle. If the dew point temperature inside the vehicle is greater than or equal to the temperature of the window glass 3, it is determined that the condensate 4 is on the inside of the window glass 3. If the dew point temperature inside the vehicle is less than the temperature of the window glass 3, it is determined that the condensate 4 is on the outside of the window glass 3.

[0049] To determine the temperature of the window glass 3, it is conceivable that the second determination step 122 includes a window glass temperature determination step 1220. In the window glass temperature determination step 1220, when the air conditioning system 21 of the vehicle 2 is turned on, the set temperature of the air conditioning system 21 is determined as the temperature of the window glass 3. When the air conditioning system 21 of the vehicle 2 is not turned on, the ambient temperature outside the vehicle is determined as the temperature of the window glass 3.

[0050] Here, the air conditioning system 21 may include both the cooling system and the heating system of the vehicle 2.

[0051] Alternatively, it is conceivable to measure the temperature of the window glass 3 directly using a dedicated temperature sensor. In solutions involving the dew point temperature inside the vehicle, the temperature of the inner side of the window glass 3 is specifically measured as the temperature of the window glass 3.

[0052] Instead of determining the dew point temperature inside the vehicle and comparing it with the temperature of the window glass 3, it is conceivable to determine the dew point humidity inside the vehicle based on the temperature of the window glass 3 and the ambient temperature inside the vehicle, and compare the dew point humidity inside the vehicle with the humidity inside the vehicle to determine whether the condensate 4 is on the inside or outside of the window glass 3.

[0053] In addition, instead of the vehicle interior dew point temperature and humidity, it is also conceivable to determine the vehicle exterior dew point temperature and / or vehicle exterior dew point humidity and use them to determine whether the condensate 4 is on the outside of the window glass 3.

[0054] According to an exemplary embodiment of this application, see Figure 2 The judgment step 12 includes a third judgment step 123, in which the external ambient temperature is compared to a first temperature threshold representing low water vapor content. If the external ambient temperature is lower than the first temperature threshold, the condensate 4 is determined to be on the inside of the window glass 3. And / or, the external ambient temperature is compared to a second temperature threshold representing high water vapor content. If the external ambient temperature is higher than the second temperature threshold, the condensate 4 is determined to be on the outside of the window glass 3.

[0055] When the outside temperature is low, the outside air can hold less moisture, so condensation 4 is unlikely to form on the outside of the window glass 3, especially since the temperature of the window glass 3 is rarely significantly lower than the outside temperature. In this case, if condensation 4 appears on the window glass 3, it can be assumed that the condensation 4 is on the inside of the window glass 3. Conversely, when the outside temperature is high, the outside air can hold more moisture, so it can be assumed that the condensation 4 is on the outside of the window glass 3. In this case, condensation 4 will not form inside the vehicle, especially since the cooling system is on.

[0056] For example, the first temperature threshold is, for example, 10 degrees Celsius, and the second temperature threshold is, for example, 25 degrees Celsius.

[0057] Here, the first judgment step 121, the second judgment step 122, and the third judgment step 123 can be selected or exist in one of them. Figure 2 In this example, for instance, only the second judgment step 122, which is connected by a solid line, is used, while the first judgment step 121 and the third judgment step 123, which are not used, are connected by a dotted line.

[0058] Figure 6 This illustration shows another example of the process of the method of this application for removing condensation 4 from the window glass 3 of a vehicle 2.

[0059] According to an exemplary embodiment, such as Figure 6 As shown, in judgment step 12, the first judgment step 121 is executed first. If the first judgment step 121 fails to execute successfully, the second judgment step 122 is executed. If the second judgment step 122 fails to execute successfully, the third judgment step 123 is executed. Here, successful execution is represented by Y, and unsuccessful execution is represented by N. Figure 6 As shown, if the process is successful, proceed directly to step 14 of the removal process.

[0060] The reason why the first judgment step 122 cannot be executed successfully may be that: the image quality captured by camera 23 is insufficient (e.g., due to lighting conditions), the distribution of condensate 4 does not meet either the preset inner judgment condition or the preset outer judgment condition, software failure, or similar reasons. The reason why the second judgment step 122 cannot be executed successfully may be that: the corresponding sensor malfunctions, software failure, etc.

[0061] In addition to the methods mentioned, it is conceivable to combine two or more of the first judgment step 121, the second judgment step 122 and the third judgment step 123 in various different ways.

[0062] For example, in the third judgment step 123, it is first determined whether the ambient temperature outside the vehicle is lower than the first temperature threshold and whether it is higher than the second temperature threshold. If not, the condensate 4 can be determined in the second judgment step 122 based on the aforementioned comparison of the temperature of the window glass 3 and the dew point temperature inside the vehicle to determine whether it is on the inside or outside of the window glass 3.

[0063] Figure 7 An example of vehicle 2 of this application is shown.

[0064] According to an exemplary embodiment, see Figure 7 The action of removing external condensate includes activating the windshield wipers 20. The windshield wipers 20 can quickly remove external condensate 4.

[0065] According to an exemplary embodiment, see Figure 4 and Figure 7 The external condensate removal action includes shutting off the ventilation device 24 used for the window glass 3. In particular, if it is found in the first determination step 121 that the condensate 4 is only locally present in the area directly opposite the air outlet 22 of the ventilation device 24, the ventilation device 24 is shut off.

[0066] According to an exemplary embodiment, see Figure 7 The process of removing internal condensate includes blowing air onto the window glass 3 using the air conditioning system 21 of vehicle 2. If the air conditioning system 21 is not activated, the process of removing internal condensate also includes activating the air conditioning system 21.

[0067] "Blowing air onto the window glass 3 by means of the air conditioning system 21" can specifically cover the following situations: blowing cold air that has become dry based on the evaporator of the air conditioning system 21 onto the window glass 3 by means of the refrigeration system of the air conditioning system 21; blowing hot air that has become hot based on the heating element onto the window glass 3 by means of the heating system of the air conditioning system 21; blowing dry hot air based on the evaporator and heating element onto the window glass 3 by means of the refrigeration system and the heating system of the air conditioning system 21.

[0068] When the air conditioning system 21 is activated, the action to remove internal condensate can be determined, in particular, based on the current operating status of the air conditioning system 21 and / or the ambient temperature outside the vehicle. For example, when the ambient temperature outside the vehicle is high and / or the cooling system of the air conditioning system 21 is activated, cold air is blown onto the window glass 3 based on the cooling system. For example, when the ambient temperature outside the vehicle is low and / or the heating system of the air conditioning system 21 is activated, hot air is blown onto the window glass 3 based on the heating system, or dry hot air is blown onto the window glass 3 based on both the cooling and heating systems.

[0069] For window glass 3 that includes a heating wire, the outer condensate removal operation and / or the inner condensate removal operation may also involve turning on the heating wire for heating.

[0070] According to an exemplary embodiment, in the determining step 10, the coverage area and / or coverage position of the condensate 4 on the window glass 3 are additionally determined, and in the removing step 14, the outer condensate removal action and / or the inner condensate removal action are adjusted accordingly based on the coverage area and / or coverage position.

[0071] Here, when the removal of condensation on the outer side is achieved by the wiper 20, the wiping speed of the wiper 20 can be adjusted according to the size of the area covered by the condensation 4. For example, if the coverage area is large, the wiping speed is fast, and if the coverage area is small, the wiping speed is slow. Furthermore, the wiping position of the wiper 20 can be adjusted according to the position of the condensation 4. For example, the wiper 20 primarily and precisely wipes the area covered by the condensation 4.

[0072] Figure 8This diagram schematically illustrates an example of the complete wiping range 50 of the wiper 20, the coverage area of ​​the condensate 4, and the actual wiping range 51 of the wiper 20. Here, the largest sector represents the complete wiping range 50 of the wiper 20, the area marked with dots represents the coverage area of ​​the condensate 4, and the area marked with intersecting lines represents the actual wiping range 51 of the wiper 20. See also... Figure 8 When the wiper 20 rotates from its non-operating position to a position where it has just completely wiped away the condensate 4, it stops rotating further (i.e., it stops wiping). Figure 5 Instead of scraping the blank area of ​​the complete scraping range 50, it can directly return to the non-working position (i.e., only scraping the actual scraping range 51).

[0073] When the removal of condensate from the inner side is achieved through the air conditioning system 21, the airflow from the air conditioning system 21 to the window glass 3 can be adjusted according to the size of the area covered by the condensate 4. For example, if the area covered is large, the airflow is large, and if the area covered is small, the airflow is small.

[0074] Furthermore, the airflow from the air conditioning system 21 to the window glass 3 can be adjusted according to the location of the condensate 4. This is especially true for the windshield, where the defogging vents 22 (see...) are located... Figure 4 This is generally located at the lower edge of the windshield. Here, the airflow is greater when the condensate 4 is higher, especially when the upper boundary of the condensate 4 is higher; and less when the condensate 4 is lower.

[0075] The dimensions, quantity, position, shape, and interrelationships of the elements in the accompanying drawings should be understood as examples, not as absolute limitations of this application. Those skilled in the art can also conceive of simple variations in the dimensions, quantity, position, shape, and interrelationships of these elements without departing from the scope of protection of this application.

[0076] In the description of specific embodiments in the specification, the method steps are presented in a particular order. However, such order should be understood as exemplary and not as an absolute limitation. Where theoretically feasible, the order of the method steps can be arbitrarily changed and / or performed simultaneously, and is not limited to the specific order presented. Furthermore, many of the method steps listed in the description of the specific embodiments are optional, not mandatory.

[0077] Provided that it is permissible in principle, each of the cited features can be considered as an individual feature and can be combined with any other feature in any form without departing from the scope of protection of this application. If it is permissible in principle, even if not explicitly stated, a feature described for one embodiment should be considered as being arbitrarily applicable to other embodiments.

[0078] Although specific embodiments of this application are described in detail herein, they are given for illustrative purposes only and should not be construed as limiting the scope of this application. Various substitutions, modifications, and alterations can be conceived without departing from the spirit and scope of this application.

[0079] List of reference numerals 10 Determination step, 12 Judgment step, 121 First judgment step, 122 Second judgment step, 1220 Window glass temperature determination step, 1221 Dew point temperature determination step, 1222 Comparison step, 123 Third judgment step, 14 Removal step. 2. Vehicle, 20. Windshield wipers, 21. Air conditioning system, 22. Air vents, 23. Camera, 24. Ventilation device; 3 windows; 4. Condensate; 50 Full scratch area, 51 Actual scratch area.

Claims

1. A method for removing condensation (4) from the window glass (3) of a vehicle (2), characterized in that, The method includes: Determine step (10), in which it is determined whether there is condensation (4) on the window glass (3); In the judgment step (12), it is determined whether the condensate (4) on the window glass (3) is on the inside or outside of the window glass (3); In the removal step (14), an outer condensate removal action is triggered for the condensate (4) on the outside of the window glass (3), and an inner condensate removal action is triggered for the condensate (4) on the inside of the window glass (3).

2. The method for removing condensate (4) from the window glass (3) of a vehicle (2) according to claim 1, characterized in that, The window glass (3) is any one of the windshield, rear windshield, side window glass and sunroof glass of the vehicle (2).

3. The method for removing condensate (4) from the window glass (3) of a vehicle (2) according to claim 1 or 2, characterized in that, The judgment step (12) includes a first judgment step (121), in which image recognition is used to determine whether the condensate (4) is on the inside or outside of the window glass (3). In particular, the judgment in the image recognition is based on the distribution of the condensate (4) on the window glass (3). In particular, if the condensate (4) on the window glass (3) meets the preset condition of large-area uniform distribution, it is determined that the condensate (4) is more likely to be on the inner side of the window glass (3). If the condensate (4) on the window glass (3) exists only locally in the area directly opposite the air outlet (22) of the ventilation device (24) for the window glass (3) in the vehicle (2), it is determined that the condensate (4) is more likely to be on the outer side of the window glass (3). For example, if the condensate (4) exists only locally on the window glass (3) in the area directly opposite the air outlet (22) of the ventilation device (24) for the window glass (3) inside the vehicle, then it is determined that the condensate (4) is on the outside of the window glass (3). If the condensate (4) on the window glass meets the preset large-area uniform distribution condition, then it is further determined whether the outside ambient temperature is lower than the preset cold temperature threshold, whether the inside dew point temperature is lower than the preset dew point temperature threshold, and whether the inside ambient temperature is lower than the preset low temperature threshold. If so, then it is determined that the condensate (4) is on the inside of the window glass (3), and / or it is further determined whether the outside ambient temperature is higher than the preset warm temperature threshold, whether the inside dew point temperature is higher than the preset dew point temperature threshold, and whether the vehicle is under preset geographical conditions. If so, then it is determined that the condensate (4) is on the outside of the window glass (3). The preset dew point temperature threshold is in particular 5 degrees Celsius, and the preset geographical conditions include at least tunnels.

4. The method for removing condensate (4) from a window glass (3) of a vehicle (2) according to any one of the preceding claims, characterized in that, The judgment step (12) includes a second judgment step (122), which includes: In the dew point temperature determination step (1221), the vehicle interior dew point temperature is determined based on the vehicle interior humidity and the vehicle interior ambient temperature; and / or, In the comparison step (1222), the temperature of the window glass (3) is compared with the dew point temperature inside the vehicle. If the dew point temperature inside the vehicle is greater than or equal to the temperature of the window glass (3), it is determined that the condensate (4) is on the inside of the window glass (3). If the dew point temperature inside the vehicle is less than the temperature of the window glass (3), it is determined that the condensate (4) is on the outside of the window glass (3); and / or, In the window glass temperature determination step (1220), when the air conditioning system (21) of the vehicle (2) is turned on, the set temperature of the air conditioning system (21) is determined as the temperature of the window glass (3), and when the air conditioning system (21) of the vehicle (2) is not turned on, the ambient temperature outside the vehicle is determined as the temperature of the window glass (3).

5. The method for removing condensate (4) from a window glass (3) of a vehicle (2) according to any one of the preceding claims, characterized in that, The judgment step (12) includes a third judgment step (123), in which the external ambient temperature is compared to a first temperature threshold representing low water vapor content. If the external ambient temperature is lower than the first temperature threshold, the condensate (4) is determined to be on the inside of the window glass (3). And / or, the external ambient temperature is compared to a second temperature threshold representing high water vapor content. If the external ambient temperature is higher than the second temperature threshold, the condensate (4) is determined to be on the outside of the window glass (3). The first temperature threshold is in particular 10 degrees Celsius, and / or the second temperature threshold is in particular 25 degrees Celsius.

6. The method for removing condensate (4) from a window glass (3) of a vehicle (2) according to any one of the preceding claims, characterized in that, In the judgment step (12), the first judgment step (121) is executed first. If the first judgment step (121) fails to be executed, the second judgment step (122) is executed. If the second judgment step (122) fails to be executed, the third judgment step (123) is executed.

7. The method for removing condensate (4) from a window glass (3) of a vehicle (2) according to any one of the preceding claims, characterized in that, The external condensate removal action includes activating the windshield wipers (20); and / or, The external condensate removal action includes shutting off the ventilation device (24) for the window glass (3), especially when the condensate (4) is only locally present in the area directly opposite the air outlet (22) of the ventilation device (24); and / or, The internal condensate removal action includes blowing air onto the window glass (3) using the air conditioning system (21) of the vehicle (2).

8. The method for removing condensate (4) from a window glass (3) of a vehicle (2) according to any one of the preceding claims, characterized in that, In the determining step (10), the presence of condensation (4) on the window glass (3) is determined based on an image of the window glass (3) captured by the camera (23) of the vehicle (2), and in particular, the presence of condensation (4) on the window glass (3) is determined by means of image recognition based on a neural network model; and / or, In the determining step (10), the coverage area and / or coverage position of the condensate (4) on the window glass (3) are additionally determined, and in the removing step (14), the outer condensate removal action and / or the inner condensate removal action are adjusted accordingly based on the coverage area and / or coverage position.

9. A controller for a vehicle (2), characterized in that, The controller includes a processor and a memory, the memory storing computer program instructions that, when executed by the processor, enable the processor to perform a method for removing condensate (4) from the window glass (3) of a vehicle (2) according to any one of claims 1 to 8.

10. A vehicle (2), characterized in that, The vehicle (2) includes a controller for the vehicle (2) according to claim 9.