Control method and device for preventing vehicle from frosting, vehicle and storage medium

Abstract

The invention provides a control method for preventing a vehicle from frosting, the method is applied to the field of vehicle control, and the method comprises the steps that under the condition that it is detected that the vehicle has a frosting risk, the internal and external temperature difference value between the interior of the vehicle and the exterior of the vehicle and the humidity of the exterior of the vehicle are obtained; determining the current frosting rate of the vehicle based on the internal and external temperature difference value and the external humidity of the vehicle; based on the current frosting rate of the vehicle, a target frosting prevention strategy needing to be adopted by the vehicle at present is determined; and controlling the vehicle to execute the target frosting prevention strategy. The method can effectively prevent the vehicle from frosting and guarantee the driving safety of a user.

Description

Technical Field

[0001] The present application relates to the field of vehicle control, and more specifically, to a control method, device, vehicle, and storage medium for preventing vehicle frosting in the field of vehicle control. Background Art

[0002] When traveling in cold weather, the interior of the vehicle often has air conditioning heating. After using the vehicle, due to the low external temperature and the high internal temperature of the vehicle, the temperature difference between the inside and outside of the vehicle is large. When the humidity is also satisfied, it is easy to reach the frosting condition, resulting in frosting on the vehicle glass after a period of time, seriously affecting the vision when driving and causing accidents.

[0003] Therefore, how to prevent vehicle frosting is an urgent problem to be solved to ensure driving safety. Summary of the Invention

[0004] The present application provides a control method, device, vehicle, and storage medium for preventing vehicle frosting, and the method can effectively prevent vehicle frosting.

[0005] In a first aspect, a control method for preventing vehicle frosting is provided. The method includes: when it is detected that the vehicle has a frosting risk, obtaining the temperature difference between the inside and outside of the vehicle and the external humidity of the vehicle; determining the current frosting rate of the vehicle based on the temperature difference between the inside and outside and the external humidity of the vehicle; determining the target anti-frosting strategy that the vehicle currently needs to adopt based on the current frosting rate of the vehicle; and controlling the vehicle to execute the target anti-frosting strategy.

[0006] In the above technical solution, this embodiment provides a control method for preventing vehicle frosting: when it is detected that the vehicle has a frosting risk, obtaining the temperature difference between the inside and outside of the vehicle and the external humidity of the vehicle, determining the current frosting rate of the vehicle based on the temperature difference between the inside and outside of the vehicle and the external humidity of the vehicle, and determining different target anti-frosting strategies that the vehicle currently needs to adopt based on different frosting rates. When the vehicle has a frosting risk, the anti-frosting strategy can be executed to prevent vehicle frosting in advance, avoiding the need for manual defrosting of the vehicle frosting later, eliminating potential driving hazards, and saving the waiting time of the user before using the vehicle. Moreover, according to different temperature differences between the inside and outside and the external humidity of the vehicle, the current frosting rate of the vehicle can be determined, and based on the frosting rate, different target anti-frosting strategies can be selected to execute, which can achieve the selection of the most suitable target anti-frosting strategy under different temperature differences between the inside and outside and the external humidity conditions of the vehicle, and improve the processing efficiency of preventing vehicle frosting.

[0007] Combined with the first aspect and the above implementation manners, in some possible implementation manners, determining the current frosting rate of the vehicle based on the internal and external temperature difference and the external humidity of the vehicle includes: when the internal and external temperature difference is greater than the first difference threshold and the external humidity of the vehicle is greater than the first humidity threshold, determining that the current frosting rate of the vehicle is the first frosting rate, where the first difference threshold is greater than the second difference threshold at which the vehicle has a frosting risk, and the first humidity threshold is greater than the second humidity threshold at which the vehicle has a frosting risk; when the internal and external temperature difference is greater than the first difference threshold and the external humidity of the vehicle is less than the first humidity threshold, or when the internal and external temperature difference is less than the first difference threshold and the external humidity of the vehicle is greater than the first humidity threshold, determining that the current frosting rate of the vehicle is the second frosting rate; when the internal and external temperature difference is less than the first difference threshold and the external humidity of the vehicle is less than the first humidity threshold, determining that the current frosting rate of the vehicle is the third frosting rate; where the first frosting rate is greater than the second frosting rate, and the second frosting rate is greater than the third frosting rate; determining the target anti-frosting strategy that the vehicle currently needs to adopt based on the current frosting rate of the vehicle, including: when the current frosting rate of the vehicle is the first frosting rate, determining the first anti-frosting strategy as the target anti-frosting strategy; when the current frosting rate of the vehicle is the second frosting rate, determining the second anti-frosting strategy as the target anti-frosting strategy; when the current frosting rate of the vehicle is the third frosting rate, determining the third anti-frosting strategy as the target anti-frosting strategy, where the first anti-frosting strategy is different from the second anti-frosting strategy, and the second anti-frosting strategy is different from the third anti-frosting strategy.

[0008] Combined with the first aspect, in some possible implementation manners, at least one candidate anti-frosting strategy is configured in the vehicle, and the candidate anti-frosting strategy includes at least one of an air-conditioning refrigeration strategy, a window opening strategy, an air-conditioning external circulation strategy, and a window heating strategy; where the number of candidate anti-frosting strategies included in the first anti-frosting strategy, the second anti-frosting strategy, and the third anti-frosting strategy is different; and / or, the candidate anti-frosting strategies included in the first anti-frosting strategy, the second anti-frosting strategy, and the third anti-frosting strategy are different; and / or, the first anti-frosting strategy, the second anti-frosting strategy, and the third anti-frosting strategy include the same candidate anti-frosting strategy, and the strategy parameters adopted by the candidate anti-frosting strategy are different, and the strategy parameters include at least one of an air-conditioning refrigeration parameter, a window opening degree, a number of window openings, a window heating temperature, and an air-conditioning external circulation parameter.

[0009] In the above technical solution, considering that the frosting risk degrees corresponding to different internal and external temperature differences and different external humidities of the vehicle are different, different degrees of anti-frosting strategies need to be adopted. The present application also proposes to compare the internal and external temperature difference with a first difference threshold, and compare the external humidity of the vehicle with a first humidity threshold, so as to determine the current frosting rate of the vehicle for different internal and external temperature differences and different external humidities of the vehicle, and then adopt corresponding anti-frosting strategies to narrow the internal and external temperature difference of the vehicle, thereby effectively reducing the frosting risk; at the same time, the waste of vehicle power consumption can be reduced.

[0010] Combined with the first aspect and the above implementation manners, in some possible implementation manners, based on the current frosting rate of the vehicle, determine the target anti-frosting strategy that the vehicle currently needs to adopt, including: obtaining the current position state of the vehicle; when the position state indicates that the vehicle is currently in an open-air scene, obtaining the weather state outside the vehicle; when the weather state indicates that there is rain or snow weather, based on the current frosting rate of the vehicle, select the target anti-frosting strategy that the vehicle currently needs to adopt from the air-conditioning refrigeration strategy, the air-conditioning external circulation strategy, and the window heating strategy.

[0011] In the above technical solution, considering that when the vehicle is in an open-air scene and encounters rain or snow weather, it is not suitable to open the window for anti-frosting prevention. The present application also proposes that when the vehicle is in an open-air scene, obtain the external weather state of the vehicle. If it is rain or snow weather, then based on the current frosting rate of the vehicle, select the target anti-frosting strategy that the vehicle currently needs to adopt from the air-conditioning refrigeration strategy, the air-conditioning external circulation strategy, and the window heating strategy, so as to avoid affecting the vehicle due to adopting an inappropriate target anti-frosting strategy.

[0012] Combined with the first aspect and the above implementation manners, in some possible implementation manners, control the vehicle to execute the target anti-frosting strategy, including: when the target anti-frosting strategy includes a window opening strategy, detect whether there is a passenger object inside the vehicle; when there is a passenger object inside the vehicle, based on the riding position of the passenger object, control to open the target window, and the target window is not adjacent to the riding position; when there is no passenger object inside the vehicle, control the target window to be at a target opening degree, and the window glass will not drop out of the glass slot at the target opening degree.

[0013] In the above technical solution, when the present application further proposes that the target anti-frosting strategy includes a window opening strategy, it is detected whether there is a passenger object inside the vehicle; if there is a passenger object inside the vehicle, based on the passenger position of the passenger object, the window at a position not adjacent to the passenger position is controlled to open, so as to avoid direct blowing of cold air and improve the user experience of the passenger object; if there is no passenger object inside the vehicle, the window is controlled to open at a target opening degree to ensure that the window glass does not drop out of the glass slot, so as to avoid property losses of the passenger object caused by excessive window opening degree and ensure vehicle safety.

[0014] Combined with the first aspect and the above implementation manners, in some possible implementation manners, controlling the target window to open includes: controlling the target window to switch on and off a preset number of times; when the target window switches on and off a preset number of times, obtaining the current temperature difference between the inside and the outside of the vehicle; when the current temperature difference is lower than a third difference threshold and higher than a second difference threshold, controlling the target window to remain open; the method further includes: when the current temperature difference is lower than the second difference threshold, controlling the target window to be in a closed state.

[0015] In the above technical solution, considering that repeatedly opening and closing the window can accelerate air circulation, thereby accelerating the reduction rate of the internal and external temperature difference, the present application also proposes to control the target window to switch on and off a preset number of times. When this operation ends, the current temperature difference between the inside and the outside of the vehicle is obtained. If the current temperature difference still causes frosting, the target window is controlled to remain open; if the current temperature difference can no longer cause frosting, the target window is controlled to close, which can quickly prevent frosting and can also flexibly adjust the opening and closing of the window according to the current temperature difference.

[0016] Combined with the first aspect and the above implementation manners, in some possible implementation manners, the method further includes: when the vehicle is in a parked and non-powered-off state and there is no passenger object inside the vehicle when the vehicle executes the target anti-frosting strategy, obtaining an environmental image around the vehicle; when it is detected that the environmental image contains a passenger object, obtaining the interior temperature of the vehicle; when the interior temperature is lower than the temperature threshold, controlling the vehicle to turn on the air-conditioning heating mode.

[0017] In the above technical solution, considering that when the user needs to park temporarily and leave the vehicle, executing the target anti-frosting strategy will reduce the interior temperature of the vehicle. To ensure a comfortable environment for the user when they return to the vehicle, the present application also proposes that when the vehicle is in a parked and non-powered-off state and there is no passenger object inside the vehicle when the vehicle executes the target anti-frosting strategy, obtaining an environmental image around the vehicle. When the environmental image contains a passenger object, it indicates that the passenger object is about to return to the vehicle. When the interior temperature is lower than the temperature threshold, controlling the vehicle to turn on the air-conditioning heating mode to provide a comfortable riding environment for the passenger object.

[0018] In a second aspect, a control device for preventing vehicle frosting is provided. The device includes: a first acquisition module configured to acquire the temperature difference between the inside and outside of the vehicle and the outside humidity of the vehicle when it is detected that the vehicle has a frosting risk; a first determination module configured to determine the current frosting rate of the vehicle based on the temperature difference between the inside and outside and the outside humidity of the vehicle; a second determination module configured to determine the target anti-frosting strategy that the vehicle currently needs to adopt based on the current frosting rate of the vehicle; and a first control module configured to control the vehicle to execute the target anti-frosting strategy.

[0019] In combination with the second aspect, in some possible implementation manners, the determination module is further configured to: when the temperature difference between the inside and outside is greater than a first difference threshold and the outside humidity of the vehicle is greater than a first humidity threshold, determine that the current frosting rate of the vehicle is a first frosting rate, where the first difference threshold is greater than a second difference threshold when the vehicle has a frosting risk, and the first humidity threshold is greater than a second humidity threshold when the vehicle has a frosting risk; when the temperature difference between the inside and outside is greater than the first difference threshold and the outside humidity of the vehicle is less than the first humidity threshold, or when the temperature difference between the inside and outside is less than the first difference threshold and the outside humidity of the vehicle is greater than the first humidity threshold, determine that the current frosting rate of the vehicle is a second frosting rate; when the temperature difference between the inside and outside is less than the first difference threshold and the outside humidity of the vehicle is less than the first humidity threshold, determine that the current frosting rate of the vehicle is a third frosting rate; where the first frosting rate is greater than the second frosting rate, and the second frosting rate is greater than the third frosting rate.

[0020] In combination with the second aspect and the above implementation manners, in some possible implementation manners, at least one candidate anti-frosting strategy is configured in the vehicle, and the candidate anti-frosting strategy includes at least one of an air-conditioning refrigeration strategy, a window opening strategy, an air-conditioning external circulation strategy, and a window heating strategy; where the number of candidate anti-frosting strategies included in the first anti-frosting strategy, the second anti-frosting strategy, and the third anti-frosting strategy is different; and / or, the candidate anti-frosting strategies included in the first anti-frosting strategy, the second anti-frosting strategy, and the third anti-frosting strategy are different; and / or, the first anti-frosting strategy, the second anti-frosting strategy, and the third anti-frosting strategy include the same candidate anti-frosting strategy, and the strategy parameters adopted by the candidate anti-frosting strategy are different, and the strategy parameters include at least one of air-conditioning refrigeration parameters, window opening degree, number of windows opened, window heating temperature, and air-conditioning external circulation parameters.

[0021] Combined with the second aspect and the above implementation manners, in some possible implementation manners, the second determination module is further configured to obtain the current position state of the vehicle; when the position state indicates that the vehicle is currently in an open-air scene, obtain the weather state outside the vehicle; when the weather state indicates that there is rain or snow weather, based on the current frosting rate of the vehicle, select the target anti-frosting strategy that the vehicle currently needs to adopt from the air-conditioning refrigeration strategy, the air-conditioning external circulation strategy, and the window heating strategy.

[0022] Combined with the second aspect and the above implementation manners, in some possible implementation manners, the first control module is further configured to detect whether there is a passenger object inside the vehicle when the target anti-frosting strategy includes a window opening strategy; when there is a passenger object inside the vehicle, based on the passenger position of the passenger object, control the opening of the target window, and the target window is not adjacent to the passenger position; when there is no passenger object inside the vehicle, control the target window to be in the target opening degree, and the window glass will not drop out of the glass slot at the target opening degree.

[0023] Combined with the second aspect and the above implementation manners, in some possible implementation manners, the first control module is further configured to control the target window to switch on and off a preset number of times; when the target window switches on and off a preset number of times, obtain the current temperature difference between the inside and outside of the vehicle; when the current temperature difference is lower than the third difference threshold and higher than the second difference threshold, control the target window to remain in the open state; the device further includes: a second control module, configured to control the target window to be in the closed state when the current temperature difference is lower than the second difference threshold.

[0024] Combined with the second aspect and the above implementation manners, in some possible implementation manners, the device further includes: a second acquisition module, configured to obtain the environmental image around the vehicle when the vehicle is in a parked and non-powered-off state and there is no passenger object inside the vehicle when the vehicle executes the target anti-frosting strategy; a third acquisition module, configured to obtain the vehicle interior temperature when it is detected that the environmental image includes a passenger object; a third control module, configured to control the vehicle to turn on the air-conditioning heating mode when the vehicle interior temperature is lower than the temperature threshold.

[0025] In a third aspect, a vehicle is provided, including a memory and a processor. The memory is used to store executable program code, and the processor is used to call and run the executable program code from the memory, so that the vehicle executes the method in the first aspect or any one of the possible implementation manners of the first aspect.

[0026] Fourthly, a computer program product is provided, which includes computer program code that, when running on a computer, causes the computer to execute the method in the above-mentioned first aspect or any possible implementation manner of the first aspect.

[0027] Fifthly, a computer-readable storage medium is provided, which stores computer program code that, when running on a computer, causes the computer to execute the method in the above-mentioned first aspect or any possible implementation manner of the first aspect. Description of the Drawings

[0028] Figure 1 is a schematic flowchart of a method for preventing vehicle frosting provided by an embodiment of the present application;

[0029] Figure 2 is a schematic diagram of preventing vehicle frosting provided by an embodiment of the present application;

[0030] Figure 3 is a schematic flowchart of another method for preventing vehicle frosting provided by an embodiment of the present application;

[0031] Figure 4 is a schematic diagram of an execution scenario of a window opening strategy provided by an embodiment of the present application;

[0032] Figure 5 is a schematic flowchart of another method for preventing vehicle frosting provided by an embodiment of the present application;

[0033] Figure 6 is a schematic flowchart of another method for preventing vehicle frosting provided by an embodiment of the present application;

[0034] Figure 7 is a schematic structural diagram of a control device for preventing vehicle frosting provided by an embodiment of the present application;

[0035] Figure 8 is a schematic structural diagram of a vehicle provided by an embodiment of the present application. Detailed Embodiments

[0036] Next, the technical solutions in the present application will be clearly and elaborately described with reference to the accompanying drawings. Among them, in the description of the embodiments of the present application, unless otherwise specified, " / " means "or". For example, A / B may represent A or B. The "and / or" in the text is only a description of the association relationship of the associated objects, indicating that there can be three relationships. For example, A and / or B may represent: A exists alone, A and B exist simultaneously, and B exists alone. In addition, in the description of the embodiments of the present application, "a plurality of" means two or more than two.

[0037] Hereinafter, the terms "first" and "second" are only used for descriptive purposes and should not be construed as implying or suggesting relative importance or implicitly specifying the quantity of the indicated technical features. Thus, features defined with "first" and "second" may explicitly or implicitly include one or more of such features.

[0038] Figure 1 It is a schematic flowchart of a control method for preventing vehicle frosting provided by an embodiment of the present application. It should be understood that this method can be applied to vehicles.

[0039] Exemplarily, as Figure 1 shown, the method 100 includes:

[0040] Step 101, when it is detected that the vehicle has a frosting risk, obtain the temperature difference between the inside and outside of the vehicle and the outside humidity of the vehicle.

[0041] Among them, the vehicle having a frosting risk indicates that the temperature difference between the inside and outside of the vehicle and the outside humidity of the vehicle reach the condensation condition, that is, the temperature difference between the inside and outside is greater than a specific difference threshold, and the outside humidity of the vehicle reaches a specific humidity threshold. When determining whether the vehicle has a frosting risk, the vehicle obtains the inside temperature of the vehicle through a temperature sensor disposed inside the vehicle, obtains the outside temperature of the vehicle through a temperature sensor outside the vehicle, and obtains the outside humidity of the vehicle through a humidity sensor outside the vehicle, and then determines the temperature difference between the inside and outside according to the inside temperature and the outside temperature of the vehicle. If the temperature difference between the inside and outside is greater than the specific difference threshold, and the outside humidity of the vehicle is greater than the specific humidity threshold, it is determined that the vehicle has a frosting risk.

[0042] Optionally, the outside humidity of the vehicle collected by the humidity sensor is usually the relative humidity (Relative Humidity, RH) in the air.

[0043] Exemplarily, taking the difference threshold as 10 degrees Celsius (°C) and the humidity threshold as 80% RH as an example, when the outside temperature of the vehicle is obtained as 0 °C, the inside temperature of the vehicle is 12 °C, and the outside humidity of the vehicle is 85% RH, based on the outside temperature and the inside temperature of the vehicle, the temperature difference between the inside and outside is determined to be 12 °C, which is greater than the difference threshold of 10 °C, and the outside humidity of the vehicle of 85% RH is greater than the humidity threshold of 80% RH, indicating that the vehicle currently has a frosting risk and anti-frosting treatment needs to be carried out.

[0044] When there is a risk of vehicle frosting, if timely prevention is not carried out, it will lead to vehicle frosting. Before the user uses the vehicle next time, it takes time to defrost. Usually, the vehicle can be prevented from frosting by reducing the interior temperature. The greater the temperature difference between the inside and outside of the vehicle and the greater the humidity, the faster the frosting rate may be. Therefore, in the process of preventing frosting, it is necessary to further consider the temperature difference between the inside and outside of the vehicle and the humidity outside the vehicle to further determine the anti-frosting strategy to be adopted. In a possible implementation, when it is detected that the vehicle has a frosting risk, the interior temperature of the vehicle, the exterior temperature of the vehicle, and the exterior humidity of the vehicle are obtained, and the temperature difference between the inside and outside is calculated based on the interior temperature and the exterior temperature of the vehicle. Finally, based on the temperature difference between the inside and outside and the exterior humidity of the vehicle, the current frosting rate of the vehicle is determined, and then the anti-frosting strategy that the vehicle needs to adopt is determined.

[0045] The process of determining whether the vehicle has a frosting risk includes obtaining the interior temperature of the vehicle, the exterior temperature of the vehicle, and the exterior humidity of the vehicle, which is used to determine whether the vehicle has a frosting risk; setting a difference threshold and a humidity threshold. When the temperature difference between the inside and outside of the vehicle is greater than the difference threshold and the exterior humidity of the vehicle is greater than the humidity threshold, it is determined that the vehicle has a frosting risk and a anti-frosting strategy needs to be adopted.

[0046] Optionally, the weather forecast information of the current location of the vehicle can also be obtained. If there is heavy rain, snowfall or a sudden drop in temperature currently, it is determined that the vehicle may also have a frosting risk.

[0047] Step 102: Based on the temperature difference between the inside and outside and the exterior humidity of the vehicle, determine the current frosting rate of the vehicle.

[0048] Considering that the frosting rate of the vehicle varies under different temperature differences between the inside and outside and different exterior humidities of the vehicle, when the temperature difference between the inside and outside and the exterior humidity are both large, the current frosting rate of the vehicle is fast; while when the temperature difference between the inside and outside and the exterior humidity are small, the current frosting rate of the vehicle is slower. And the speed of the vehicle frosting rate will affect the selection of the anti-frosting strategy. Therefore, in a possible implementation, before determining what anti-frosting strategy to adopt, first, based on the temperature difference between the inside and outside and the exterior humidity of the vehicle, determine the current frosting rate of the vehicle.

[0049] Optionally, different corresponding relationships between the temperature difference range between the inside and outside, different exterior humidity ranges of the vehicle and the frosting rate (or between the frosting rate levels) are pre-configured in the vehicle, so that in the actual process of preventing frosting, the current frosting rate (or frosting rate level) of the vehicle can be determined according to the temperature difference between the inside and outside and the exterior humidity and this corresponding relationship.

[0050] Exemplarily, the corresponding relationship between the temperature difference range between the inside and outside, the exterior humidity range of the vehicle and the frosting rate level can be shown in Table 1.

[0051] Table 1

[0052] <![CDATA[40 < H 外 ≤ 50]]> <![CDATA[50 < H 外 ≤ 60]]> <![CDATA[60 < H 外 ≤ 70]]> … <![CDATA[5 < T 差 ≤ 10]]> First level Second level Third level … <![CDATA[10 < T 差 ≤ 20]]> Second level Third level Fourth level … <![CDATA[20<T 差 ≤30]]> Third level Fourth level Fifth level … … … … … …

[0053] Among them, T 差 is the temperature difference between the inside and outside of the vehicle, and H 外 is the humidity outside the vehicle; the frosting rate of the vehicle corresponding to the first level is lower than the frosting rate of the vehicle corresponding to the second level, and the frosting rate of the vehicle corresponding to the second level is lower than the frosting rate of the vehicle corresponding to the third level, and so on.

[0054] Step 103: Based on the current frosting rate of the vehicle, determine the target anti-frosting strategy that the vehicle currently needs to adopt.

[0055] Among them, at least one candidate anti-frosting strategy is configured in the vehicle. When there is a frosting risk, the vehicle can execute at least one of the candidate anti-frosting strategies to prevent frosting. Exemplarily, the candidate anti-frosting strategies can include at least one of an air-conditioning refrigeration strategy, a window opening strategy, an air-conditioning external circulation strategy, and a window heating strategy.

[0056] Under the influence of different inside-outside temperature differences and vehicle external humidity, the frosting rate of the vehicle is different. In order to prevent vehicle frosting, the anti-frosting strategies required under different frosting rates are also different. In a possible implementation manner, the vehicle can determine the target anti-frosting strategy that the vehicle currently needs to adopt based on the current frosting rate of the vehicle, so as to quickly adjust the internal temperature of the vehicle and reduce the temperature difference between the inside and outside of the vehicle.

[0057] Optionally, obtain the battery power of the vehicle. When the power is lower than 75%, select a candidate anti-frosting strategy with less power consumption (for example, the window opening strategy) as the target anti-frosting strategy.

[0058] Optionally, the number of candidate anti-frosting strategies included in different target anti-frosting strategies can be different.

[0059] Exemplarily, when the temperature difference between the inside and outside of the vehicle is 25°C and the external humidity of the vehicle is 65%RH, the frosting rate level of the vehicle is the fifth level, indicating that the frosting rate of the vehicle is relatively fast in the current situation, and four candidate anti-frosting strategies can be adopted as the target anti-frosting strategy; when the temperature difference between the inside and outside of the vehicle is 6°C and the external humidity of the vehicle is 45%RH, the frosting rate level of the vehicle is the first level, indicating that the frosting rate of the vehicle is relatively slow in the current situation, and two candidate anti-frosting strategies can be adopted as the target anti-frosting strategy.

[0060] Step 104: Control the vehicle to execute the target anti-frosting strategy.

[0061] When it is determined that the vehicle has a risk of frosting, and the current frosting rate of the vehicle is determined based on the temperature difference between the inside and outside and the external humidity of the vehicle, and then the target anti-frosting strategy to be taken currently is determined, the vehicle is controlled to execute the target anti-frosting strategy to reduce the temperature difference between the inside and outside of the vehicle and prevent the occurrence of frosting.

[0062] Exemplarily, when the temperature difference between the inside and outside reaches 20 °C and the external humidity of the vehicle reaches 55% RH, the frosting rate level of the vehicle corresponds to the third level, indicating that the current frosting rate is relatively fast. Then, target anti-frosting strategies such as turning on the air conditioner and opening the window can be taken simultaneously; when the temperature difference between the inside and outside is 6 °C and the external humidity of the vehicle is 45% RH, the frosting rate level of the vehicle corresponds to the first level, indicating that the current frosting rate is relatively low. Then, the target anti-frosting strategy of only opening the window can be adopted.

[0063] Optionally, during the process of controlling the vehicle to execute the target anti-frosting strategy, the temperature difference between the inside and outside of the vehicle and the vehicle humidity are obtained in real time. When the temperature difference between the inside and outside is less than a specific difference threshold and the external humidity of the vehicle is less than a specific humidity threshold, the vehicle is controlled to stop executing the anti-frosting strategy.

[0064] Optionally, when the vehicle is controlled to execute the target anti-frosting strategy for a preset duration, the temperature difference between the inside and outside of the vehicle and the external humidity of the vehicle are obtained again. Based on the temperature difference between the inside and outside and the external humidity of the vehicle, it is judged whether there is still a risk of frosting. If the vehicle still has a risk of frosting, the vehicle is controlled to continue to execute the target anti-frosting strategy; if the vehicle has no risk of frosting, the vehicle is controlled to stop executing the target anti-frosting strategy.

[0065] Figure 2 This is a schematic diagram of preventing vehicle frosting provided by an embodiment of the present application. As Figure 2 shown, the temperature sensor identifies the internal temperature and external temperature of the vehicle, the humidity sensor identifies the external humidity of the vehicle, and sends the CAN signal including the internal temperature of the vehicle, the external temperature of the vehicle, the external humidity of the vehicle, and the preset threshold conditions to the vehicle control system BCM. The vehicle control system BCM calculates the temperature difference between the inside and outside based on the internal temperature and external temperature of the vehicle, and determines whether the temperature difference between the inside and outside and the external humidity of the vehicle meet the preset threshold conditions. If they meet, the vehicle is controlled to execute the air-conditioning refrigeration operation, and / or, open the window to a small extent, and / or, cycle the window switch. When it is recognized that the temperature difference between the inside and outside and the external humidity of the vehicle do not meet the preset threshold conditions, the vehicle is controlled to turn off the above-executed strategy.

[0066] In summary, this embodiment provides a control method for preventing vehicle frosting: when it is detected that the vehicle has a frosting risk, the temperature difference between the inside and outside of the vehicle and the humidity outside the vehicle are obtained. Based on the temperature difference between the inside and outside of the vehicle and the humidity outside the vehicle, the current frosting rate of the vehicle is determined, and based on different frosting rates, different target anti-frosting strategies that the vehicle currently needs to adopt are determined. When the vehicle has a frosting risk, the anti-frosting strategy can be executed to prevent the vehicle frosting risk in advance, avoiding the need for manual defrosting when the vehicle frosts later, eliminating potential driving hazards and saving the waiting time of the user before using the vehicle. Moreover, different frosting rates can be determined according to different temperature differences between the inside and outside and the humidity outside the vehicle, and different target anti-frosting strategies can be selected and executed, enabling the selection of the most suitable target anti-frosting strategy under different temperature differences between the inside and outside and humidity outside the vehicle conditions, and improving the processing efficiency of preventing frosting.

[0067] The target anti-frosting strategy can adopt the window opening strategy. When the window opening strategy is executed, air circulation can be achieved by opening the window, reducing the temperature difference between the inside and outside of the vehicle to prevent vehicle frosting. However, when the outside temperature is relatively low and there are passengers in the vehicle, opening the window may affect the riding experience of the passengers. Therefore, when executing the window opening strategy, it is also necessary to determine the execution method of the window opening strategy in combination with the presence of passengers and the position of the passengers.

[0068] Figure 3 It is a schematic flowchart of another control method for preventing vehicle frosting provided by an embodiment of the present application. It should be understood that this method can be applied to vehicles.

[0069] Exemplarily, as Figure 3 shown, this method 300 includes:

[0070] Step 301, when it is detected that the vehicle has a frosting risk, obtain the temperature difference between the inside and outside of the vehicle and the humidity outside the vehicle.

[0071] Step 302, based on the temperature difference between the inside and outside and the humidity outside the vehicle, determine the current frosting rate of the vehicle.

[0072] The implementation manners of Step 301 and Step 302 can refer to the above embodiment, and will not be elaborated here in this embodiment.

[0073] Step 303, based on the current frosting rate of the vehicle, determine the target anti-frosting strategy that the vehicle currently needs to adopt.

[0074] Among them, at least one candidate anti-frosting strategy is configured in the vehicle, and the candidate anti-frosting strategy includes at least one of an air-conditioning refrigeration strategy, a window opening strategy, an air-conditioning external circulation strategy, and a window heating strategy.

[0075] Based on the current frosting rate of the vehicle, a corresponding strategy can be selected from the candidate anti-frosting strategies as the target anti-frosting strategy.

[0076] Step 304, when the window opening strategy is included in the target anti-frosting strategy, detect whether there is a passenger object inside the vehicle.

[0077] Since the window opening strategy will affect the passengers when it is executed, in order to optimize the riding experience of the passengers, in one possible implementation, when the vehicle opening strategy is adopted in the target frosting strategy, it is detected whether there is a passenger object inside the vehicle to determine the execution mode of the window opening strategy.

[0078] Optionally, it can be detected whether there is a passenger object inside the vehicle by means of vehicle interior image recognition, infrared scanning, gravity sensors, etc.

[0079] Step 305, when there is a passenger object inside the vehicle, based on the riding position of the passenger object, control the opening of the target window, and the target window is not adjacent to the riding position.

[0080] In order to avoid a large impact on the passengers caused by the introduction of external air when opening the window when there is a passenger object inside the vehicle, in one possible implementation, when there is a passenger object inside the vehicle, the vehicle can also select the target window to be opened based on the riding position of the passenger object, and the target window is not adjacent to the riding position, and then control the opening of the target window, so as to avoid the cold air blowing directly on the passengers.

[0081] Exemplarily, Figure 4 is a schematic diagram of an execution scenario of a window opening strategy provided by an embodiment of the present application. As Figure 4 shown, if it is detected that there are passenger objects at positions 1 and 2 inside the vehicle, at least one of the target windows, window 3 and window 4, is opened; if it is detected that there is a passenger at position 3, window 2 is opened.

[0082] When controlling the opening of the target window, the window can be cycled on and off multiple times to accelerate the reduction of the temperature inside the vehicle. Corresponding to one possible implementation, step 305 further includes steps 305A to 305C:

[0083] Step 305A, control the target window to cycle on and off a preset number of times.

[0084] Repeatedly operating the window on and off can accelerate air circulation and rapidly reduce the temperature difference between the inside and outside. Considering that cycling the window on and off will cause wear and tear on the mechanical structure of the window, in one possible implementation, a preset number of times is set, and the target window can be controlled to cycle on and off a preset number of times.

[0085] Step 305B, when the target window is cycled a preset number of times, obtain the current temperature difference between the inside and outside of the vehicle.

[0086] In the process of adopting the target anti-frost strategy, it is necessary to determine whether the vehicle interior temperature needs to be adjusted according to the current temperature difference between the inside and outside. In one possible implementation, when the number of cycles of the target window reaches the preset number, obtain the current vehicle interior temperature and vehicle exterior temperature, calculate the current temperature difference, and determine whether it is necessary to accelerate the reduction of the vehicle interior temperature.

[0087] Step 305C, when the current temperature difference is lower than the third difference threshold and higher than the second difference threshold, control the target window to remain open.

[0088] Among them, the second difference threshold is the temperature difference threshold between the inside and outside of the vehicle to determine the risk of frosting.

[0089] When it is detected that the current temperature difference is lower than the third difference threshold and higher than the second difference threshold, it indicates that the frosting risk of the vehicle has not been eliminated, but the temperature difference between the current vehicle interior and exterior is relatively small, and there is no need to accelerate the reduction of the vehicle interior temperature through the cycle switch. It only needs to keep the target window open.

[0090] Exemplarily, taking the preset number as 4 times, the second difference threshold as 10 °C, and the third threshold difference as 15 °C as an example, after controlling the target window to cycle 4 times, the vehicle interior temperature is obtained as 11 °C, and the vehicle exterior temperature is -1 °C. The calculated current temperature difference is 12 °C, which is between the second difference threshold of 10 °C and the third difference threshold of 15 °C, indicating that the vehicle still has a frosting risk at present, but the current vehicle interior temperature is relatively low and the frosting risk is small. There is no need to perform the window cycle switch operation to accelerate the reduction of the vehicle interior temperature, so control the target window to remain open.

[0091] Optionally, when the current temperature difference is lower than the third difference threshold and higher than the second difference threshold, clear the number of switch times of the current target window, and repeat the operations of the above steps 304A and 304B.

[0092] Exemplarily, the current temperature difference is 12 °C, which is between the second difference threshold of 10 °C and the third difference threshold of 15 °C, indicating that the current temperature difference between the inside and outside of the vehicle is still large. Then clear the number of opening times of the target window, control the target window to cycle switch 4 times again, obtain the current temperature difference, and determine the state of the target window.

[0093] Step 306, when there is no passenger object inside the vehicle, control the target window to be at the target opening degree, and at the target opening degree, the window glass will not drop out of the glass slot.

[0094] Considering that when there are no passengers in the vehicle, if the target window is opened to a large extent, it may cause property damage. In one possible implementation, when it is detected that there are no passengers inside the vehicle, the target window is controlled to be at a target opening degree, at which the window glass will not drop out of the glass slot.

[0095] Step 307, when the current temperature difference is lower than the second difference threshold, control the target window to be in a closed state.

[0096] If the current temperature difference is already lower than the second difference threshold at which the vehicle has a risk of frosting, it indicates that the frosting risk has been eliminated. To avoid the outside temperature affecting the passengers inside the vehicle, the target window can be controlled to be in a closed state.

[0097] Optionally, obtain the temperature difference between the inside and outside of the vehicle and the outside humidity of the vehicle at a preset period, and execute the corresponding target anti-frosting strategy based on the temperature difference between the inside and outside of the vehicle and the outside humidity of the vehicle.

[0098] In this embodiment, the present application also proposes that when the target anti-frosting strategy includes a window opening strategy, detect whether there are passengers inside the vehicle; if there are passengers inside the vehicle, based on the seating position of the passengers, control the window at a position not adjacent to the seating position to be opened to avoid direct blowing of cold air and improve the user experience of the passengers; if there are no passengers inside the vehicle, control the window to be opened at a target opening degree to ensure that the window glass will not drop out of the glass slot, avoid property damage to the passengers caused by too large an opening degree of the window, and ensure the safety of the vehicle.

[0099] In addition, considering that repeatedly opening and closing the window can accelerate air circulation, thereby accelerating the reduction rate of the temperature difference between the inside and outside, the present application also proposes to control the target window to switch on and off a preset number of times. When this operation ends, obtain the current temperature difference between the inside and outside of the vehicle. If the current temperature difference still causes frosting, control the target window to remain open; if the current temperature difference can no longer cause frosting, control the target window to close, which can quickly prevent frosting and can also flexibly adjust the opening and closing of the window according to the current temperature difference.

[0100] When the vehicle is in an open-air scene and encounters rainy or snowy weather, during the process of controlling the vehicle to execute the target anti-frosting strategy, if the window opening strategy is adopted, it may cause pollution to the inside of the vehicle. Therefore, the weather condition also needs to be considered to determine the target anti-frosting strategy.

[0101] Figure 5 It is a schematic flowchart of another control method for preventing vehicle frosting provided by the embodiments of the present application. It should be understood that this method can be applied to vehicles.

[0102] Exemplarily, such asFigure 5 As shown, the method 500 includes:

[0103] Step 501, when it is detected that the vehicle has a risk of frosting, obtain the temperature difference between the inside and outside of the vehicle and the humidity outside the vehicle.

[0104] The implementation of step 501 can refer to the above embodiments, and will not be elaborated in this embodiment.

[0105] Step 502, obtain the position state where the vehicle is currently located.

[0106] In a possible implementation, when it is detected that the vehicle has a risk of frosting, obtain the position state where the vehicle is currently located to determine the target anti-frosting strategy required for the current scenario.

[0107] Wherein, the position state may include open-air and non-open-air.

[0108] Step 503, when the position state indicates that the vehicle is currently in an open-air scenario, obtain the weather state outside the vehicle.

[0109] When the vehicle is in an open-air scenario, since executing the window opening strategy will control the window to open, if it encounters rainy or snowy weather, rain and snow will enter the vehicle interior, causing adverse effects on the vehicle. Therefore, it is necessary to combine the external weather state to determine the target anti-frosting strategy required for the vehicle. In a possible implementation, when the position state where the vehicle is currently located indicates that the vehicle is currently in an open-air scenario, obtain the weather state outside the vehicle to determine the target anti-frosting strategy that can be adopted in the current scenario.

[0110] In a possible implementation, when the position state indicates that the vehicle is currently in an indoor scenario such as a garage or an underground parking lot, it indicates that the external weather state will not affect the vehicle. Therefore, the target anti-frosting strategy that the vehicle currently needs to adopt can be further selected from the air-conditioning refrigeration strategy, the window opening strategy, the air-conditioning external circulation strategy, and the window heating strategy according to the temperature difference between the inside and outside and the humidity outside the vehicle.

[0111] Optionally, the weather state outside the vehicle can be determined by obtaining the weather forecast information of the current location of the vehicle or by obtaining the data of the rain sensor outside the vehicle.

[0112] Step 504, when the weather state indicates rainy or snowy weather, select the target anti-frosting strategy that the vehicle currently needs to adopt from the air-conditioning refrigeration strategy, the air-conditioning external circulation strategy, and the window heating strategy based on the current frosting rate of the vehicle.

[0113] If the strategy of opening the window is adopted in rainy or snowy weather, rain or snow will enter the vehicle interior, causing pollution to the vehicle. In one possible implementation, when the weather condition indicates rainy or snowy weather, based on the current frosting rate of the vehicle, select the target anti-frosting strategy that the vehicle currently needs to adopt from the air-conditioning refrigeration strategy, the air-conditioning external circulation strategy, and the window heating strategy.

[0114] In one possible implementation, when the weather condition indicates no rainy or snowy weather, then based on the current frosting rate of the vehicle, determine the target anti-frosting strategy that needs to be adopted currently from the air-conditioning refrigeration strategy, the window opening strategy, the air-conditioning external circulation strategy, and the window heating strategy.

[0115] Step 505, control the vehicle to execute the target anti-frosting strategy.

[0116] The implementation of step 505 can refer to the above embodiments, and this embodiment will not be elaborated here.

[0117] Step 506, when the vehicle is in the parked and non-powered-off state and there are no passengers in the vehicle interior while the vehicle is executing the target anti-frosting strategy, obtain the environmental image around the vehicle.

[0118] When the vehicle executes the target anti-frosting strategy, the temperature inside the vehicle will be reduced. However, during this process, if the vehicle is in the parked and non-powered-off state, it indicates that it is a temporary stop and the passenger will return to the vehicle after a period of time. In one possible implementation, when the vehicle is in the parked and non-powered-off state and there are no passengers in the vehicle interior while the vehicle is executing the target anti-frosting strategy, obtain the environmental image around the vehicle to determine whether the passenger is about to return to the vehicle.

[0119] Step 507, when it is detected that the environmental image contains a passenger, obtain the interior temperature of the vehicle.

[0120] When it is detected that the environmental image contains a passenger, it indicates that the passenger is about to return to the vehicle, and then determine whether to turn on the air-conditioning heating mode according to the interior temperature of the vehicle to make the interior temperature of the vehicle reach a suitable temperature.

[0121] Optionally, during the vehicle driving process, collect the image information of the passengers inside the vehicle, and determine whether the environmental image contains a passenger based on this image information.

[0122] Step 508, when the interior temperature of the vehicle is lower than the temperature threshold, control the vehicle to turn on the air-conditioning heating mode.

[0123] Wherein, the temperature threshold is the suitable temperature for the human body. Exemplarily, the temperature threshold can be 26 degrees Celsius.

[0124] In order to provide a comfortable riding environment for the riding object, when the temperature inside the vehicle is lower than the temperature threshold, the vehicle is controlled to turn on the air conditioner heating mode to increase the temperature inside the vehicle.

[0125] In this embodiment, considering that when the vehicle is in an open-air scenario and encounters rain or snow weather, it is not suitable to open the window for frost prevention. The present application also proposes that when the vehicle is in an open-air scenario, obtain the external weather condition of the vehicle. If it is rain or snow weather, based on the current frost formation rate of the vehicle, select the target frost prevention strategy that the vehicle currently needs to adopt from the air conditioner refrigeration strategy, the air conditioner external circulation strategy, and the window heating strategy, so as to avoid affecting the vehicle due to adopting an inappropriate target frost prevention strategy.

[0126] In addition, considering that when the user needs to park temporarily and leave the vehicle, executing the target frost prevention strategy will reduce the temperature inside the vehicle. In order to ensure a comfortable environment for the user when they return to the vehicle, the present application also proposes that when the vehicle is executing the target frost prevention strategy and the vehicle is in a parked state without power off and there is no riding object inside the vehicle, obtain the environmental image around the vehicle. When the riding object is included in the environmental image, it indicates that the riding object is about to return to the vehicle. When the temperature inside the vehicle is lower than the temperature threshold, control the vehicle to turn on the air conditioner heating mode to provide a comfortable riding environment for the riding object.

[0127] Under the influence of different internal and external temperature differences and the external humidity of the vehicle, the frost formation rate of the vehicle is different, so different target frost prevention strategies need to be adopted to adjust the temperature inside the vehicle, so as to quickly and effectively eliminate the frost formation risk of the vehicle; and without wasting the vehicle power consumption.

[0128] Figure 6 It is a schematic flowchart of another control method for preventing vehicle frost formation provided by an embodiment of the present application. It should be understood that this method can be applied to vehicles.

[0129] Exemplarily, as Figure 6 shown, this method 600 includes:

[0130] Step 601, when it is detected that the vehicle has a frost formation risk, obtain the internal and external temperature difference between the inside and outside of the vehicle and the external humidity of the vehicle.

[0131] The implementation manner of step 601 can refer to the above embodiment, and this embodiment will not be elaborated here.

[0132] Step 602, when the internal and external temperature difference is greater than the first difference threshold and the external humidity of the vehicle is greater than the first humidity threshold, determine that the current frost formation rate of the vehicle is the first frost formation rate.

[0133] Among them, the first difference threshold is greater than the second difference threshold at which the vehicle has a risk of frosting, and the first humidity threshold is greater than the second humidity threshold at which the vehicle has a risk of frosting; the first frosting rate is greater than the second frosting rate, and the second frosting rate is greater than the third frosting rate.

[0134] Under the influence of different temperature differences between the inside and outside of the vehicle and the humidity outside the vehicle, the frosting rate of the vehicle is different. The temperature difference threshold between the inside and outside and the humidity threshold outside the vehicle can be set to divide the frosting rate of the vehicle into different levels, so as to determine the target anti-frosting strategy to be adopted according to different frosting rate levels. In a possible implementation, when the temperature difference between the inside and outside is greater than the first difference threshold and the humidity outside the vehicle is greater than the first humidity threshold, the current frosting rate of the vehicle is determined as the first frosting rate. Exemplarily, taking the first difference threshold as 15 °C and the first humidity threshold as 90% RH as an example, when the internal temperature of the vehicle is 16 °C, the external temperature of the vehicle is -1 °C, and the external humidity of the vehicle is 95% RH, the calculated temperature difference between the inside and outside is 17 °C. The frosting rate of the vehicle under the current conditions is relatively fast, and the current frosting rate of the vehicle is determined as the first frosting rate.

[0135] Step 603, when the current frosting rate of the vehicle is the first frosting rate, determine the first anti-frosting strategy as the target anti-frosting strategy.

[0136] Among them, at least one candidate anti-frosting strategy is configured in the vehicle, and the candidate anti-frosting strategy includes at least one of an air-conditioning refrigeration strategy, a window opening strategy, an air-conditioning external circulation strategy, and a window heating strategy.

[0137] When the current frosting rate of the vehicle is the first frosting rate, it indicates that the current frosting rate is relatively fast, and a target anti-frosting strategy that can quickly reduce the temperature difference between the inside and outside needs to be adopted. In a possible implementation, when the current frosting rate of the vehicle is the first frosting rate, determine the first anti-frosting strategy as the target anti-frosting strategy.

[0138] Exemplarily, select the air-conditioning refrigeration strategy, the window opening strategy, the air-conditioning external circulation strategy, and the window heating strategy from the candidate anti-frosting strategies as the first anti-frosting strategy. When the current frosting rate of the vehicle is the first frosting rate, use the air-conditioning refrigeration strategy, the window opening strategy, the air-conditioning external circulation strategy, and the window heating strategy as the target anti-frosting strategy.

[0139] Optionally, the corresponding relationship between the temperature difference range between the inside and outside of the vehicle, the humidity range outside the vehicle, the frosting rate of the vehicle, and the target anti-frosting strategy is pre-configured in the vehicle.

[0140] Exemplarily, taking the first difference threshold as 15°C and the first humidity threshold as 90%RH as an example, the corresponding relationship table of the internal and external temperature difference, the external humidity of the vehicle, the frosting rate, and the target anti-frosting strategy is shown in Table 2.

[0141] Table 2

[0142]

[0143] Wherein, T 差 is the internal and external temperature difference, and H 外 is the external humidity of the vehicle; the first frosting rate is greater than the second frosting rate, and the second frosting rate is greater than the third frosting rate.

[0144] As shown in Table 2, when T 差 > 15 and H 外 > 90, the vehicle frosting rate is the first frosting rate, and the air-conditioning refrigeration strategy, the window opening strategy, the air-conditioning external circulation strategy, and the window heating strategy (the first anti-frosting strategy) are selected from the candidate anti-frosting strategies as the target anti-frosting strategy; when T 差 > 15 and H 外 < 90, or, T 差 < 15 and H 外 > 90, the vehicle frosting rate is the second frosting rate, and the air-conditioning refrigeration strategy, the air-conditioning external circulation strategy, and the window heating strategy (the second anti-frosting strategy) are selected from the candidate anti-frosting strategies as the target anti-frosting strategy; when T 差 < 15 and H 外 < 90, when the vehicle frosting rate is the third frosting rate, the window opening strategy and the window heating strategy (the third anti-frosting strategy) are selected from the candidate anti-frosting strategies as the target anti-frosting strategy.

[0145] In a possible implementation manner, the number of candidate anti-frosting strategies included in the first anti-frosting strategy, the second anti-frosting strategy, and the third anti-frosting strategy is different; and / or, the candidate anti-frosting strategies included in the first anti-frosting strategy, the second anti-frosting strategy, and the third anti-frosting strategy are different; and / or, the first anti-frosting strategy, the second anti-frosting strategy, and the third anti-frosting strategy include the same candidate anti-frosting strategy, and the strategy parameters adopted by the candidate anti-frosting strategy are different, and the strategy parameters include at least one of the air-conditioning refrigeration parameters, the window opening degree, the number of window openings, the window heating temperature, and the air-conditioning external circulation parameters.

[0146] Exemplarily, when the current frosting rate of the vehicle is the first frosting rate, indicating a relatively high current frosting risk, four candidate anti-frosting strategies (e.g., air-conditioning refrigeration strategy, window opening strategy, air-conditioning external circulation strategy, window heating strategy) are adopted as the first anti-frosting strategy, or a candidate anti-frosting strategy with a relatively fast reduction rate of the internal and external temperature difference (e.g., window opening strategy) is adopted as the first anti-frosting strategy; or the window opening strategy is determined as the first anti-frosting strategy, but the corresponding strategy parameters of the window opening strategy can be: opening 4 windows simultaneously; when the current frosting rate of the vehicle is the third frosting rate, indicating a relatively low current frosting risk, two candidate anti-frosting strategies (e.g., window opening strategy, air-conditioning external circulation strategy) can be adopted as the third anti-frosting strategy, or a candidate anti-frosting strategy with a relatively slow reduction rate of the internal and external temperature difference (e.g., air-conditioning refrigeration strategy) is adopted as the third anti-frosting strategy; or the window opening strategy is determined as the third anti-frosting strategy, but the corresponding strategy parameters of the window opening strategy are: opening 2 windows simultaneously.

[0147] Step 604, when the internal and external temperature difference is greater than the first difference threshold and the external humidity of the vehicle is less than the first humidity threshold, or when the internal and external temperature difference is less than the first difference threshold and the external humidity of the vehicle is greater than the first humidity threshold, determine that the current frosting rate of the vehicle is the second frosting rate.

[0148] When the internal and external temperature difference is greater than the first difference threshold and the external humidity of the vehicle is less than the first humidity threshold, or when the internal and external temperature difference is less than the first difference threshold and the external humidity of the vehicle is greater than the first humidity threshold, determine the current frosting rate of the vehicle as the second frosting rate.

[0149] Exemplarily, taking the first difference threshold as 15°C and the first humidity threshold as 90%RH as an example, when the internal temperature of the vehicle is obtained as 16°C, the external temperature of the vehicle is -1°C, and the external humidity of the vehicle is 82%RH, the calculated internal and external temperature difference is 17°C, or if the internal temperature of the vehicle is obtained as 13°C, the external temperature of the vehicle is 0°C, and the external humidity of the vehicle is 95%RH, the calculated internal and external temperature difference is 13°C. Under the above conditions, the frosting rate of the vehicle is relatively slow, and the frosting rate can be determined as the second frosting rate.

[0150] Step 605, when the current frosting rate of the vehicle is the second frosting rate, determine the second anti-frosting strategy as the target anti-frosting strategy.

[0151] When the current frosting rate of the vehicle is the second frosting rate, it indicates that the current frosting rate is relatively slower than the first frosting rate. A target anti-frosting strategy of relatively slowly reducing the temperature difference between the inside and outside can be adopted. In one possible implementation, when the current frosting rate of the vehicle is the second frosting rate, the second anti-frosting strategy is determined as the target anti-frosting strategy.

[0152] Exemplarily, select the air-conditioning refrigeration strategy, the air-conditioning external circulation strategy, and the window heating strategy from the candidate anti-frosting strategies as the second anti-frosting strategy. When the current frosting rate of the vehicle is the second frosting rate, the air-conditioning refrigeration strategy, the air-conditioning external circulation strategy, and the window heating strategy are used as the target anti-frosting strategies.

[0153] Step 606, when the temperature difference between the inside and outside is less than the first difference threshold and the external humidity of the vehicle is less than the first humidity threshold, determine that the current frosting rate of the vehicle is the third frosting rate.

[0154] Wherein, the first frosting rate is greater than the second frosting rate, and the second frosting rate is greater than the third frosting rate.

[0155] When the temperature difference between the inside and outside of the vehicle is less than the first difference threshold and the external humidity of the vehicle is less than the first humidity threshold, it indicates that the current frosting rate is relatively slow, and the current frosting rate of the vehicle is determined as the third frosting rate.

[0156] Exemplarily, taking the first difference threshold as 15 °C and the first humidity threshold as 90% RH as an example, when the internal temperature of the vehicle is obtained as 13 °C, the external temperature of the vehicle is 0 °C, and the external humidity of the vehicle is 82% RH, calculate that the temperature difference between the inside and outside is 13 °C. The frosting rate of the vehicle under the current conditions is relatively slow, and the current frosting rate is determined as the third frosting rate.

[0157] Step 607, when the current frosting rate of the vehicle is the third frosting rate, determine the third anti-frosting strategy as the target anti-frosting strategy.

[0158] When the current frosting rate of the vehicle is the third frosting rate, it means that the current frosting rate is relatively slow. A target anti-frosting strategy with a relatively slow rate of reducing the temperature difference between the inside and outside can be adopted. In one possible implementation, when the current frosting rate of the vehicle is the third frosting rate, the third anti-frosting strategy is determined as the target anti-frosting strategy.

[0159] Exemplarily, select the window opening strategy and the window heating strategy from the candidate anti-frosting strategies as the third anti-frosting strategy. When the current frosting rate of the vehicle is the third frosting rate, the window opening strategy and the window heating strategy are used as the target anti-frosting strategies.

[0160] Step 608: Control the vehicle to execute the target anti - frosting strategy.

[0161] The target anti - frosting strategy is the above - mentioned first anti - frosting strategy, second anti - frosting strategy, and third anti - frosting strategy.

[0162] Based on the current frosting rate of the vehicle, after determining the first anti - frosting strategy, second anti - frosting strategy, or third anti - frosting strategy that needs to be taken, control the vehicle to execute the above - mentioned first anti - frosting strategy, second anti - frosting strategy, or third anti - frosting strategy.

[0163] In this embodiment, considering that the frosting risks corresponding to different internal and external temperature differences and different external humidities of the vehicle are different, and different degrees of anti - frosting strategies need to be taken. The present application also proposes to compare the internal and external temperature difference with the first difference threshold and compare the external humidity of the vehicle with the first humidity threshold, so as to determine the current frosting rate of the vehicle for different internal and external temperature differences and different external humidities of the vehicle. Furthermore, by taking corresponding anti - frosting strategies, the internal and external temperature difference of the vehicle is reduced, thereby effectively reducing the frosting risk; at the same time, the waste of vehicle power consumption can be reduced.

[0164] Figure 7 It is a schematic structural diagram of a control device for preventing vehicle frosting provided by an embodiment of the present application.

[0165] Exemplarily, as Figure 7 shown, the device 700 includes:

[0166] A first acquisition module 701, configured to acquire the internal and external temperature difference between the vehicle interior and the vehicle exterior and the external humidity of the vehicle when it is detected that the vehicle has a frosting risk.

[0167] A first determination module 702, configured to determine the current frosting rate of the vehicle based on the internal and external temperature difference and the external humidity of the vehicle.

[0168] A second determination module 703, configured to determine the target anti - frosting strategy that the vehicle currently needs to take based on the current frosting rate of the vehicle, and different target anti - frosting strategies are taken corresponding to different frosting rates.

[0169] A first control module 704, configured to control the vehicle to execute the target anti - frosting strategy.

[0170] In a possible implementation, the first determination module 702 is further configured to determine that the current frosting rate of the vehicle is the first frosting rate when the temperature difference between the inside and outside is greater than the first difference threshold and the humidity outside the vehicle is greater than the first humidity threshold, where the first difference threshold is greater than the second difference threshold at which the vehicle has a frosting risk, and the first humidity threshold is greater than the second humidity threshold at which the vehicle has a frosting risk; to determine that the current frosting rate of the vehicle is the second frosting rate when the temperature difference between the inside and outside is greater than the first difference threshold and the humidity outside the vehicle is less than the first humidity threshold, or when the temperature difference between the inside and outside is less than the first difference threshold and the humidity outside the vehicle is greater than the first humidity threshold; to determine that the current frosting rate of the vehicle is the third frosting rate when the temperature difference between the inside and outside is less than the first difference threshold and the humidity outside the vehicle is less than the first humidity threshold, where the first frosting rate is greater than the second frosting rate, and the second frosting rate is greater than the third frosting rate; the second determination module 703 is further configured to determine the first anti-frosting strategy as the target anti-frosting strategy when the current frosting rate of the vehicle is the first frosting rate; to determine the second anti-frosting strategy as the target anti-frosting strategy when the current frosting rate of the vehicle is the second frosting rate; to determine the third anti-frosting strategy as the target anti-frosting strategy when the current frosting rate of the vehicle is the third frosting rate, where the first anti-frosting strategy is different from the second anti-frosting strategy, and the second anti-frosting strategy is different from the third anti-frosting strategy.

[0171] In a possible implementation, at least one candidate anti-frosting strategy is configured in the vehicle, and the candidate anti-frosting strategy includes at least one of an air-conditioning refrigeration strategy, a window opening strategy, an air-conditioning external circulation strategy, and a window heating strategy; where the number of candidate anti-frosting strategies included in different target anti-frosting strategies is different; and / or, the candidate anti-frosting strategies included in different target anti-frosting strategies are different; and / or, the strategy parameters of the same candidate anti-frosting strategy included in different target anti-frosting strategies are different, and the strategy parameters include at least one of an air-conditioning refrigeration parameter, a window opening degree, a number of window openings, a window heating temperature, and an air-conditioning external circulation parameter. In a possible implementation, the second determination module 703 is further configured to obtain the current position state of the vehicle; to obtain the weather state outside the vehicle when the position state indicates that the vehicle is currently in an open-air scenario; to select the target anti-frosting strategy that the vehicle currently needs to adopt from the air-conditioning refrigeration strategy, the air-conditioning external circulation strategy, and the window heating strategy based on the current frosting rate of the vehicle when the weather state indicates that there is rain or snow weather.

[0172] In a possible implementation, the first control module 704 is further configured to detect whether there is a passenger object inside the vehicle when the target anti-frosting strategy includes a window opening strategy; when there is a passenger object inside the vehicle, control the opening of a target window based on the passenger position of the passenger object, where the target window is not adjacent to the passenger position; when there is no passenger object inside the vehicle, control the target window to be at a target opening degree, at which the window glass does not drop out of the glass slot.

[0173] In a possible implementation, the first control module 704 is further configured to control the target window to switch on and off a preset number of times; when the target window switches on and off a preset number of times, obtain the current temperature difference between the inside and the outside of the vehicle; when the current temperature difference is lower than a third difference threshold and higher than a second difference threshold, control the target window to remain open. The device further includes: a second control module, configured to control the target window to be in a closed state when the current temperature difference is lower than the second difference threshold.

[0174] In a possible implementation, the device further includes: a second acquisition module, configured to obtain an environmental image around the vehicle when the vehicle is in a parked and non-powered-off state and there is no passenger object inside the vehicle when the vehicle executes the target anti-frosting strategy; a third acquisition module, configured to obtain the in-vehicle temperature of the vehicle when it is detected that the environmental image includes a passenger object; a third control module, configured to control the vehicle to turn on the air conditioner heating mode when the in-vehicle temperature is lower than the temperature threshold.

[0175] Figure 8 It is a schematic structural diagram of a vehicle provided by an embodiment of the present application.

[0176] Exemplarily, as Figure 8 shown, the vehicle 800 includes: a memory 801 and a processor 802, where an executable program code 803 is stored in the memory 801, and the processor 802 is configured to call and execute the executable program code 803 to execute a control method for preventing vehicle frosting.

[0177] In addition, an embodiment of the present application further protects a device, which may include a memory and a processor, where an executable program code is stored in the memory, and the processor is configured to call and execute the executable program code to execute a control method for preventing vehicle frosting provided by an embodiment of the present application.

[0178] In this embodiment, the device can be divided into functional modules according to the above method examples. For example, each functional module can be corresponded, or two or more functions can be integrated into one processing module. The above integrated module can be implemented in the form of hardware. It should be noted that the division of modules in this embodiment is illustrative, only a logical function division, and there can be other division methods in actual implementation.

[0179] In the case of dividing each functional module corresponding to each function, the device can also include a first acquisition module, a determination module, a first control module, etc. It should be noted that all relevant contents of each step involved in the above method embodiment can be cited in the function description of the corresponding functional module, and will not be repeated here.

[0180] It should be understood that the device provided in this embodiment is used to execute the above method for preventing vehicle frosting, so the same effect as the above implementation method can be achieved.

[0181] In the case of adopting an integrated unit, the device can include a processing module and a storage module. Among them, when the device is applied to a vehicle, the processing module can be used to control and manage the actions of the vehicle. The storage module can be used to support the vehicle to execute mutual program codes, etc.

[0182] Among them, the processing module can be a processor or a controller, which can implement or execute various exemplary logical blocks, modules and circuits described in combination with the disclosure content of this application. The processor can also be a combination of computing functions, such as including a combination of one or more microprocessors, a combination of digital signal processing (DSP) and a microprocessor, etc. The storage module can be a memory.

[0183] In addition, the device provided in the embodiment of the present application can specifically be a chip, a component or a module. The chip can include a connected processor and a memory; among them, the memory is used to store instructions, and when the processor calls and executes the instructions, the chip can execute the method for preventing vehicle frosting provided in the above embodiment.

[0184] This embodiment also provides a computer-readable storage medium, in which computer program code is stored. When the computer program code runs on a computer, it causes the computer to execute the above related method steps to implement the method for preventing vehicle frosting provided in the above embodiment.

[0185] This embodiment also provides a computer program product. When the computer program product runs on a computer, it causes the computer to execute the above related steps to implement the method for preventing vehicle frosting provided in the above embodiment.

[0186] Among them, the device, computer-readable storage medium, computer program product or chip provided in this embodiment are all used to execute the corresponding method provided above. Therefore, the beneficial effects that can be achieved can refer to the beneficial effects in the corresponding method provided above, and will not be elaborated here.

[0187] Through the description of the above embodiments, those skilled in the art can understand that for the convenience and conciseness of description, only the above division of each functional module is used as an example. In actual applications, the above functions can be allocated to different functional modules according to needs, that is, the internal structure of the device is divided into different functional modules to complete all or part of the functions described above.

[0188] In the embodiments provided in this application, it should be understood that the disclosed device and method can be implemented in other ways. For example, the device embodiments described above are only illustrative. For example, the division of modules or units is only a logical function division. In actual implementation, there may be other division methods. For example, multiple units or components can be combined or integrated into another device, or some features can be ignored or not executed. Another point, the displayed or discussed coupling or direct coupling or communication connection between each other can be through some interfaces. The indirect coupling or communication connection of the device or unit can be in electrical, mechanical or other forms.

[0189] The above content is only the specific implementation manner of this application, but the protection scope of this application is not limited thereto. Any person skilled in the art can easily think of changes or substitutions within the technical scope disclosed in this application, and all should be covered by the protection scope of this application. Therefore, the protection scope of this application should be subject to the protection scope of the claims.

Claims

1. A control method for preventing vehicle frosting, characterized in that, The method includes: When it is detected that the vehicle has a risk of frosting, obtaining the temperature difference between the inside and outside of the vehicle and the outside humidity of the vehicle; Based on the temperature difference between the inside and outside and the outside humidity of the vehicle, determining the current frosting rate of the vehicle; Based on the current frosting rate of the vehicle, determining the target anti-frosting strategy that the vehicle currently needs to adopt; Controlling the vehicle to execute the target anti-frosting strategy.

2. The method according to claim 1, characterized in that, The determining of the current frosting rate of the vehicle based on the temperature difference between the inside and outside and the outside humidity of the vehicle includes: When the temperature difference between the inside and outside is greater than the first difference threshold and the outside humidity of the vehicle is greater than the first humidity threshold, determining that the current frosting rate of the vehicle is the first frosting rate, where the first difference threshold is greater than the second difference threshold when the vehicle has a risk of frosting, and the first humidity threshold is greater than the second humidity threshold when the vehicle has a risk of frosting; When the temperature difference between the inside and outside is greater than the first difference threshold and the outside humidity of the vehicle is less than the first humidity threshold, or when the temperature difference between the inside and outside is less than the first difference threshold and the outside humidity of the vehicle is greater than the first humidity threshold, determining that the current frosting rate of the vehicle is the second frosting rate; When the temperature difference between the inside and outside is less than the first difference threshold and the outside humidity of the vehicle is less than the first humidity threshold, determining that the current frosting rate of the vehicle is the third frosting rate; where the first frosting rate is greater than the second frosting rate, and the second frosting rate is greater than the third frosting rate; The determining of the target anti-frosting strategy that the vehicle currently needs to adopt based on the current frosting rate of the vehicle includes: When the current frosting rate of the vehicle is the first frosting rate, determining the first anti-frosting strategy as the target anti-frosting strategy; When the current frosting rate of the vehicle is the second frosting rate, determining the second anti-frosting strategy as the target anti-frosting strategy; When the current frosting rate of the vehicle is the third frosting rate, determining the third anti-frosting strategy as the target anti-frosting strategy, where the first anti-frosting strategy is different from the second anti-frosting strategy, and the second anti-frosting strategy is different from the third anti-frosting strategy.

3. The method according to claim 2, wherein At least one candidate anti-frosting strategy is configured in the vehicle, and the candidate anti-frosting strategy includes at least one of an air-conditioning refrigeration strategy, a window opening strategy, an air-conditioning external circulation strategy, and a window heating strategy; Among them, the number of the candidate anti-frost strategies included in the first anti-frost strategy, the second anti-frost strategy, and the third anti-frost strategy is different; and / or, the candidate anti-frost strategies included in the first anti-frost strategy, the second anti-frost strategy, and the third anti-frost strategy are different; and / or, the first anti-frost strategy, the second anti-frost strategy, and the third anti-frost strategy include the same candidate anti-frost strategy, and the strategy parameters adopted by the candidate anti-frost strategy are different, where the strategy parameters include at least one of air-conditioning refrigeration parameters, window opening degree, number of opened windows, window heating temperature, and air-conditioning external circulation parameters.

4. The method according to claim 3, characterized in that Determining the target anti-frost strategy that the vehicle currently needs to adopt based on the current frosting rate of the vehicle includes: Obtaining the current position state of the vehicle; When the position state indicates that the vehicle is currently in an open-air scene, obtaining the weather state outside the vehicle; When the weather state indicates the presence of rain or snow weather, selecting the target anti-frost strategy that the vehicle currently needs to adopt from the air-conditioning refrigeration strategy, the air-conditioning external circulation strategy, and the window heating strategy based on the current frosting rate of the vehicle.

5. The method according to claim 3, characterized in that, Controlling the vehicle to execute the target anti-frost strategy includes: When the window opening strategy is included in the target anti-frost strategy, detecting whether there is a passenger object inside the vehicle; When there is a passenger object inside the vehicle, controlling to open a target window based on the passenger position of the passenger object, where the target window is not adjacent to the passenger position; When there is no passenger object inside the vehicle, controlling the target window to be at a target opening degree, at which the window glass will not drop out of the glass slot.

6. The method according to claim 5, characterized in that, Controlling to open the target window includes: Controlling the target window to switch on and off a preset number of times; When the target window switches on and off the preset number of times, obtaining the current temperature difference between the inside and the outside of the vehicle; When the current temperature difference is lower than the third difference threshold and higher than the second difference threshold, controlling the target window to maintain the open state; The method further includes: When the current temperature difference is lower than the second difference threshold, controlling the target window to be in the closed state.

7. According to the method described in any one of claims 1 to 6, characterized in that The method further includes: When the vehicle is in a parked and non-powered-off state and there is no passenger object inside the vehicle when the vehicle executes the target anti-frost strategy, obtaining the environmental image around the vehicle; When it is detected that the environmental image includes the passenger object, obtaining the vehicle interior temperature; When the vehicle interior temperature is lower than the temperature threshold, controlling the vehicle to turn on the air-conditioning heating mode.

8. A control device for preventing vehicle frosting, characterized in that, The device includes: A first acquisition module, configured to obtain the internal and external temperature difference between the inside and the outside of the vehicle and the external humidity of the vehicle when it is detected that the vehicle has a frosting risk; A first determination module, configured to determine a current frosting rate of the vehicle based on the difference between the internal and external temperatures and the humidity outside the vehicle; A second determination module, configured to determine a target anti-frosting strategy that the vehicle currently needs to adopt based on the current frosting rate of the vehicle; A first control module, configured to control the vehicle to execute the target anti-frosting strategy.

9. A vehicle, characterized in that, The vehicle includes: A memory, configured to store executable program code; A processor, configured to call and run the executable program code from the memory, so that the vehicle executes the method according to any one of claims 1 to 7.

10. A computer-readable storage medium, characterized in that, The computer-readable storage medium stores a computer program, which when executed, implements the method according to any one of claims 1 to 7.

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