A defrosting method, device and vehicle

Abstract

The application provides a defrosting method, device and vehicle. The defrosting method comprises: when a defrosting function of a vehicle-mounted air conditioner is in an open state, obtaining an air conditioner gear, a frost formation ratio on a windshield and an adsorption level; the adsorption level is used to indicate an adsorption degree of air flow of a defrosting air outlet to a side plate of an instrument panel close to the windshield; according to the adsorption level, the frost formation ratio and the air conditioner gear, the air conditioner gear is adjusted, and it is determined whether to start a reverse Coanda effect control strategy; the reverse Coanda effect control strategy comprises at least one of adjusting a distance between the side plate and the windshield from an initial distance to a target distance and adjusting an inclination angle of the side plate from an initial angle to a target angle. The application realizes defrosting of the front windshield to improve driving safety while saving vehicle energy consumption.

Description

Technical Field

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

[0002] As people increasingly rely on cars for transportation, their demands for vehicle performance and safety are also rising. Clear visibility is crucial for safe driving; frost on the windshield severely impairs the driver's vision, making it difficult to see road conditions, traffic signs, and other vehicles, thus reducing driving safety. Drivers can defrost the windshield by using the defrost function of the car's air conditioning system.

[0003] The defrost vents in a car's air conditioning system are usually located at the front of the dashboard. Due to the Coanda effect, the airflow from the defrost vents is drawn onto the side panel of the dashboard near the windshield, which reduces the defrost airflow on the windshield and affects the defrosting effect. Summary of the Invention

[0004] This application provides a defrosting method, apparatus, and vehicle to solve, or at least partially solve, the problem of how to reduce the absorption of airflow from the air conditioning defrost outlet by the side panel of the dashboard, improve the defrosting effect, and reduce the overall vehicle energy consumption.

[0005] In a first aspect, embodiments of this application provide a defrosting method, the method comprising:

[0006] When the defrosting function of the vehicle air conditioner is turned on, the air conditioner setting, the frost ratio on the windshield, and the adsorption level are obtained; wherein, the adsorption level is used to indicate the degree to which the airflow from the defrost vent is adsorbed onto the side panel of the dashboard near the windshield.

[0007] Based on the adsorption level, the frosting ratio, and the air conditioning setting, the air conditioning setting is adjusted, and it is determined whether to activate the anti-Coanda effect control strategy. The anti-Coanda effect control strategy includes at least one of adjusting the distance between the side panel and the windshield from an initial distance to a target distance and adjusting the tilt angle of the side panel from an initial angle to a target angle. The initial distance is less than the target distance, and the initial angle is greater than the target angle.

[0008] Secondly, embodiments of this application also provide a defrosting device, the device comprising:

[0009] The acquisition module is used to acquire the air conditioning setting, the frost ratio on the windshield, and the adsorption level when the defrosting function of the vehicle air conditioning is turned on; wherein, the adsorption level is used to indicate the degree to which the airflow from the defrosting air outlet is adsorbed onto the side panel of the dashboard near the windshield.

[0010] The first processing module is used to adjust the air conditioning setting according to the adsorption level, the frosting ratio, and the air conditioning setting, and to determine whether to activate the anti-Coanda effect control strategy. The anti-Coanda effect control strategy includes at least one of adjusting the distance between the side panel and the windshield from an initial distance to a target distance and adjusting the tilt angle of the side panel from an initial angle to a target angle, wherein the initial distance is less than the target distance and the initial angle is greater than the target angle.

[0011] Thirdly, embodiments of this application also provide a vehicle including the aforementioned defrosting device.

[0012] Fourthly, embodiments of this application also provide an electronic device, which includes a processor, a memory, and a computer program stored in the memory and executable on the processor, wherein the computer program, when executed by the processor, implements the defrosting method described above.

[0013] Fifthly, embodiments of this application also provide a computer-readable storage medium storing a computer program that, when executed by a processor, implements the defrosting method described above.

[0014] The embodiments of this application include at least the following technical effects:

[0015] The technical solution of this application embodiment, by acquiring the frost ratio, air conditioning setting, and adsorption level, enables the monitoring of defrosting status, vehicle energy consumption, and whether the side panel of the dashboard generates a Coanda effect on the airflow of the defrosting vent. Based on the frost ratio, air conditioning setting, and adsorption level, the air conditioning setting can be adjusted, and it can be determined whether to activate the anti-Coanda effect control strategy. This achieves the goal of defrosting the windshield to improve driving safety while saving vehicle energy consumption. Attached Figure Description

[0016] To more clearly illustrate the technical solutions in the embodiments of this application or the prior art, the accompanying drawings used in the description of the embodiments or the prior art will be briefly introduced below.

[0017] Figure 1 This is a schematic flowchart of the defrosting method provided in the embodiments of this application;

[0018] Figure 2 This is a schematic diagram of the defrosting device provided in the embodiments of this application;

[0019] Figure 3 A block diagram of an electronic device provided in an embodiment of this application. Detailed Implementation

[0020] The technical solutions of the embodiments of this application will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this application, not all embodiments. Based on the embodiments of this application, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of this application.

[0021] It should be understood that the phrase "one embodiment" or "an embodiment" throughout the specification means that a specific feature, structure, or characteristic related to the embodiment is included in at least one embodiment of this application. Therefore, "in one embodiment" or "in an embodiment" appearing throughout the specification does not necessarily refer to the same embodiment. Furthermore, these specific features, structures, or characteristics can be combined in any suitable manner in one or more embodiments.

[0022] In the various embodiments of this application, it should be understood that the sequence number of each process described below does not imply the order of execution. The execution order of each process should be determined by its function and internal logic, and should not constitute any limitation on the implementation process of the embodiments of this application.

[0023] like Figure 1 As shown in the embodiment of this application, a defrosting method is provided, the method comprising:

[0024] Step 101: When the defrosting function of the vehicle air conditioner is turned on, obtain the air conditioning setting, the frost ratio on the windshield, and the adsorption level; wherein, the adsorption level is used to indicate the degree to which the airflow from the defrosting air outlet is adsorbed onto the side panel of the dashboard near the windshield.

[0025] The defrosting method provided in this application embodiment is applied to a controller. When the vehicle air conditioning is in the "on" state, the controller acquires the air conditioning setting signal, which includes the air conditioning setting, specifically the airflow setting of the air conditioning blower. The controller can also acquire the frost ratio on the windshield. This frost ratio can be the proportion of the frost-covered area on the windshield to the driver's field of vision area within the windshield. The frost ratio characterizes the frost condition on the windshield, and the defrosting status can be obtained by acquiring the frost ratio.

[0026] Considering that the defrost vents of the air conditioning system in the car are generally located at the front of the dashboard, the airflow from the defrost vents will be drawn onto the side panel of the dashboard near the windshield due to the Coanda effect. The controller also obtains the adsorption level, which is used to indicate the degree to which the airflow from the defrost vents is drawn onto the side panel of the dashboard near the windshield.

[0027] Through step 101, the controller can monitor the defrosting status by acquiring the frost ratio during the vehicle air conditioning defrosting process. Since the air conditioning setting is directly related to the vehicle's energy consumption, it can also monitor the vehicle's energy consumption by acquiring the air conditioning setting. Furthermore, it can monitor whether the side panel of the instrument panel produces the Coanda effect on the airflow of the defrosting vent by acquiring the adsorption level.

[0028] Step 102: Adjust the air conditioning setting according to the adsorption level, the frosting ratio, and the air conditioning setting, and determine whether to activate the anti-Coanda effect control strategy. The anti-Coanda effect control strategy includes at least one of adjusting the distance between the side panel and the windshield from an initial distance to a target distance and adjusting the tilt angle of the side panel from an initial angle to a target angle. The initial distance is less than the target distance, and the initial angle is greater than the target angle.

[0029] Based on the acquired adsorption level, frost ratio, and air conditioning setting, the controller can adjust the air conditioning setting according to the defrosting situation, energy consumption, and whether the Coanda effect occurs. For example, when the frost ratio decreases, the air conditioning setting can be lowered to save energy, and when the frost ratio is high, the air conditioning setting can be increased to speed up the defrosting process. In addition, based on the acquired adsorption level, frost ratio, and air conditioning setting, the controller can determine whether to activate the anti-Coanda effect control strategy. For example, when the adsorption level is high, the anti-Coanda effect control strategy can be activated to speed up the defrosting process.

[0030] In this embodiment, the position of the side panel of the instrument panel near the windshield and the instrument panel body can be adjusted, specifically including distance adjustment and angle adjustment. Distance adjustment refers to adjusting the distance between the side panel and the windshield from an initial distance to a target distance, i.e., increasing the distance between the side panel and the windshield, thereby reducing the side panel's absorption of airflow. Angle adjustment refers to adjusting the tilt angle of the side panel, which is the angle between the plane of the side panel and the vertical plane, from an initial angle to a target angle, i.e., reducing the tilt degree of the side panel. Specifically, when the tilt angle is at the initial angle, the plane of the side panel is an inclined plane; when the tilt angle is at the target angle, the plane of the side panel is a vertical plane. By adjusting the tilt angle, the plane of the side panel can be changed from an inclined plane to a vertical plane, thereby reducing the side panel's absorption of airflow.

[0031] Specifically, when determining to activate the anti-Coanda effect control strategy, the distance between the side panel and the windshield is adjusted from an initial distance to a target distance, and / or the tilt angle of the side panel is adjusted from an initial angle to a target angle, where the initial distance is less than the target distance and the initial angle is greater than the target angle. For example, if the initial distance between the side panel and the windshield is 5mm, when determining to activate the anti-Coanda effect control strategy, the distance can be adjusted to 10mm. If the initial angle of the side panel is 60 degrees, when determining to activate the anti-Coanda effect control strategy, the tilt angle of the side panel can be adjusted to 80 degrees.

[0032] In this embodiment, by acquiring the frost ratio, air conditioning setting, and adsorption level, the defrosting status, vehicle energy consumption, and whether the side panel of the dashboard generates a Coanda effect on the airflow of the defrosting vents can be monitored. Based on the frost ratio, air conditioning setting, and adsorption level, the air conditioning setting can be adjusted, and it can be determined whether to activate the anti-Coanda effect control strategy. This achieves defrosting of the windshield to improve driving safety while saving vehicle energy consumption.

[0033] The following describes how to obtain the adsorption grade. In an optional embodiment of this application, obtaining the adsorption grade includes:

[0034] Obtain a first wind speed and a second wind speed; wherein, the first wind speed is the first wind speed corresponding to the airflow flowing along the windshield in the airflow generated by the defrost air outlet, and the second wind speed is the second wind speed corresponding to the airflow flowing along the side panel in the airflow generated by the defrost air outlet.

[0035] Obtain the air outlet mode of the vehicle air conditioner;

[0036] Based on the air outlet mode and the air conditioning setting, determine the reference wind speed corresponding to the airflow allocated to the defrost air outlet;

[0037] The adsorption level is determined based on the reference wind speed, the first wind speed, and the second wind speed.

[0038] In the specific implementation process, a first wind speed detection device can be installed on the windshield side of the defrost air outlet, and a second wind speed detection device can be installed on the side panel of the defrost air outlet. The controller obtains the first wind speed corresponding to the airflow flowing along the windshield in the airflow generated by the defrost air outlet through the first wind speed detection device, and obtains the second wind speed corresponding to the airflow flowing along the side panel in the airflow generated by the defrost air outlet through the second wind speed detection device.

[0039] In addition, the blower is a crucial component of a vehicle's air conditioning system. Its main function is to draw in air, pressurize it, and then distribute it to the various air ducts, providing the power for airflow in the air conditioning system. A vehicle's air conditioning system includes at least three air ducts: defrost ducts, foot ducts, and face ducts. Drivers can adjust the airflow mode of the vehicle's air conditioning system according to their needs. Different airflow modes activate different air ducts, resulting in varying airflow volumes allocated to each duct.

[0040] The following explanation uses the air outlet modes of a car air conditioner, including defrost mode, defrost foot blowing mode, and defrost foot blowing face mode, as examples. In defrost mode, the air duct opened is the defrost air duct; in defrost foot blowing mode, the air duct opened includes both the defrost air duct and the foot blowing air duct; and in defrost foot blowing face mode, the air duct opened includes the defrost air duct, the foot blowing air duct, and the face blowing air duct. The defrost flow rate of the defrost air duct differs in different air outlet modes. Typically, the airflow of a car air conditioner is around 300 m³ / h. In defrost mode, the defrost flow rate usually accounts for about 70%; in defrost foot blowing mode, it usually accounts for about 30%; and in defrost foot blowing face mode, it accounts for only 18%. The defrost vent flow rate at different air conditioning settings can be pre-calculated into the corresponding air volume. Dividing the air volume by the effective area of ​​the vent gives the average vent velocity. Using this velocity as a reference velocity, the correspondence between the air outlet mode, air conditioning setting, and reference velocity can be obtained.

[0041] In the specific implementation process, the reference wind speed corresponding to the airflow allocated to the defrost air outlet can be determined based on this correspondence, according to the air outlet direction and air conditioning setting.

[0042] For example, Table 1 below shows the correspondence between the air outlet mode, air conditioning level and reference fan speed of the vehicle air conditioner.

[0043] Table 1

[0044]

[0045] Once the airflow direction is known, the current airflow mode of the vehicle's air conditioning can be determined. Based on the airflow mode and air conditioning setting, the reference wind speed can be obtained by referring to Table 1.

[0046] After obtaining the first wind speed, the second wind speed, and the reference wind speed, the adsorption level can be determined based on the reference wind speed, the first wind speed, and the second wind speed.

[0047] The above-described implementation scheme of this application determines the adsorption level by obtaining the first wind speed corresponding to the airflow flowing along the windshield in the airflow generated by the defrost air outlet, the second wind speed corresponding to the airflow flowing along the side plate in the airflow generated by the defrost air outlet, and the reference wind speed corresponding to the airflow distributed to the defrost air outlet.

[0048] The following describes how to determine the reference wind speed. In an optional embodiment of this application, determining the adsorption level based on the reference wind speed, the first wind speed, and the second wind speed includes:

[0049] Determine a target wind speed that matches the reference wind speed; wherein, the target wind speed is the upper limit wind speed corresponding to the second wind speed when the adsorption level is the first level;

[0050] When the first wind speed is greater than or equal to the reference wind speed and the second wind speed is less than the target wind speed, the adsorption level is determined to be the first level.

[0051] When the first wind speed is less than the reference wind speed and the second wind speed is greater than the reference wind speed, the adsorption level is determined to be the second level.

[0052] In the specific implementation process, two adsorption levels can be set, the first level and the second level, with the adsorption degree of the first level being lower than that of the second level.

[0053] After determining the reference wind speed, it is also necessary to determine the target wind speed that matches the reference wind speed. This target wind speed is the upper limit wind speed corresponding to the second wind speed when the adsorption level is the first level. Moreover, this target wind speed and the reference wind speed are positively correlated; the higher the reference wind speed, the higher the target wind speed.

[0054] Then, the adsorption level is determined by comparing the magnitudes of the first wind speed and the reference wind speed, the second wind speed and the reference wind speed, and the second wind speed and the target wind speed.

[0055] Specifically, when the first wind speed is greater than or equal to the reference wind speed and the second wind speed is less than the target wind speed, the adsorption level is determined to be Level 1; when the first wind speed is less than the reference wind speed and the second wind speed is greater than the reference wind speed, the adsorption level is determined to be Level 2.

[0056] For example, take the reference wind speed in Table 1.

[0057] With the air conditioning set to levels 1-3 and the airflow in defrost mode, the reference wind speed, as found in the table, is 1.9 m / s, and the corresponding target wind speed is 0.5 m / s. Therefore, if the first wind speed is between 0 and 1.9 m / s, and the second wind speed is between 1.9 and 3.2 m / s, it indicates that the airflow from the vents is being drawn into the dashboard area, and the adsorption level is determined to be Level 2. If the first wind speed is greater than 1.9 m / s and the second wind speed is less than 0.5 m / s, it indicates that the airflow from the vents is not being drawn into the dashboard area, and the adsorption level is determined to be Level 1.

[0058] The method for determining the adsorption level is similar for other air conditioning settings and airflow modes, so it will not be repeated here.

[0059] The above-described implementation scheme of this application determines the adsorption level by comparing the first wind speed corresponding to the airflow flowing along the windshield in the airflow generated by the defrost air outlet, the second wind speed corresponding to the airflow flowing along the side plate in the airflow generated by the defrost air outlet, and the magnitude relationship between the reference wind speed and the target wind speed. This facilitates subsequent determination of whether to activate the anti-Coanda effect control strategy based on the adsorption level.

[0060] The following describes how to determine the frost ratio. In an optional embodiment of this application, obtaining the frost ratio on the windshield includes:

[0061] Obtain the frost area on the windshield;

[0062] The overlapping area between the frosted area and the driving visibility area on the windshield is defined as the target frosted area.

[0063] The frost ratio is determined based on the area of ​​the target frost area and the area corresponding to the driving field of vision area.

[0064] In practice, based on the temperature difference between the frosted and non-frosted areas, the temperature on the windshield can be detected by an infrared sensor to determine the frosted areas on the windshield. Alternatively, an image of the windshield can be captured by a camera, and then the image can be used to identify the frosted areas on the windshield.

[0065] After identifying the frosted area, the overlapping area between the frosted area and the driver's field of vision area on the windshield is defined as the target frosted area, which is the frosted area that affects the driver's safe driving. The ratio of the area of ​​the target frosted area to the corresponding area of ​​the driver's field of vision area is defined as the frosting ratio.

[0066] The above-described implementation scheme of this application obtains the frost area on the windshield and determines the frost ratio based on the frost area and the driving visibility area on the windshield. This allows the system to determine the defrosting status of the windshield based on the frost ratio, and then determine whether to adjust the air conditioning setting to save energy.

[0067] The following describes how to adjust the air conditioning setting based on the adsorption level, frosting ratio, and air conditioning speed, and how to determine whether to activate the anti-Coanda effect control strategy. In an optional embodiment of this application, the adsorption level includes a first level and a second level, wherein the adsorption degree corresponding to the second level is higher than that corresponding to the first level; the air conditioning speed includes a first speed, a second speed, and a third speed.

[0068] Based on the adsorption level, the frosting ratio, and the air conditioning setting, the air conditioning setting is adjusted, and it is determined whether to activate the anti-Coanda effect control strategy, including:

[0069] When the air conditioner setting is the first setting and the adsorption level is the second level, the air conditioner setting is increased to the target setting, and the adsorption level is obtained again; when the adsorption level is obtained again to the second level, the anti-Coanda effect control strategy is activated, and after a target preset time, the air conditioner setting is reduced to the first setting; when the adsorption level is obtained again to the first level, an energy-saving control strategy is executed on the air conditioner setting.

[0070] When the air conditioner setting is the second setting and the adsorption level is the second level, the air conditioner setting is increased to the target setting, and the adsorption level is obtained again; when the adsorption level is obtained again to the second level, the anti-Coanda effect control strategy is activated, and after a target preset time, the air conditioner setting is reduced to the first setting; when the adsorption level is obtained again to the first level, an energy-saving control strategy is executed on the air conditioner setting.

[0071] When the air conditioner is at the third setting and the adsorption level is at the second level, the anti-Coanda effect control strategy is activated, and after a target preset time, the air conditioner setting is reduced to the first setting; when the adsorption level is obtained again as the first level, an energy-saving control strategy is executed on the air conditioner setting.

[0072] When the air conditioner setting is the second or third setting and the adsorption level is the first level, the energy-saving control strategy is executed for the air conditioner setting.

[0073] In the specific implementation process, the selection principle for adjusting the air conditioning level and whether to activate the anti-Coanda effect control strategy prioritizes driving safety, followed by energy saving, and finally visual aesthetics.

[0074] It should be noted that the air conditioning settings in this embodiment include a first setting, a second setting, and a third setting. The first setting is the low fan speed setting of the vehicle air conditioner, the second setting is the medium fan speed setting, and the third setting is the high fan speed setting. The low fan speed setting may include at least one setting, the medium fan speed setting may include at least one setting, and the high fan speed setting may include at least one setting.

[0075] Specifically, when the air conditioner is at the first setting and the adsorption level is at the second level, the air conditioner is controlled to increase to the target setting, and the adsorption level is acquired again. When the adsorption level is acquired again to the second level, an anti-Coanda effect control strategy is activated, and after a target preset time, the air conditioner is controlled to decrease to the first setting. When the adsorption level is acquired again to the first level, an energy-saving control strategy is implemented for the air conditioner setting. When the air conditioner is at the second setting and the adsorption level is at the second level, the air conditioner is controlled to increase to the target setting, and the adsorption level is acquired again. When the adsorption level is acquired again to the second level, the anti-Coanda effect control strategy is activated, and after a target preset time, the air conditioner is controlled to decrease to the first setting. When the adsorption level is acquired again to the first level, an energy-saving control strategy is implemented for the air conditioner setting. When the air conditioner is at the third setting and the adsorption level is at the second level, the anti-Coanda effect control strategy is activated, and after a preset time, the air conditioner setting is reduced to the first setting. When the adsorption level is again at the first level, an energy-saving control strategy is implemented for the air conditioner setting. The energy-saving control strategy is implemented for the air conditioner setting when it is at the second or third setting and the adsorption level is at the first level.

[0076] Among them, controlling the air conditioning speed to be increased to the target speed includes:

[0077] Determine whether the frosting ratio is greater than or equal to the first preset ratio;

[0078] When the frosting ratio is greater than or equal to the first preset ratio, the target setting is determined to be the third setting, and the air conditioning setting is controlled to be increased to the third setting.

[0079] When the frosting ratio is less than the first preset ratio, if the air conditioner setting is the first setting, the target setting is determined to be the second setting, and the air conditioner setting is controlled to be increased to the second setting; if the air conditioner setting is the second setting, the target setting is determined to be the third setting, and the air conditioner setting is controlled to be increased to the third setting.

[0080] In practice, when the air conditioning is upgraded to the target level, the higher the frost ratio, the greater the impact on driving safety. Therefore, it is advisable to first determine whether the frost ratio is greater than or equal to the first preset ratio.

[0081] When the frosting ratio is greater than or equal to the first preset ratio, driving safety is prioritized, and the air conditioning level is directly increased to the highest level, which is the third level. When the frosting ratio is less than the first preset ratio, the impact of the frosted area on driving safety is relatively small. In this case, while considering driving safety, overall vehicle energy consumption can also be taken into account. The air conditioning level can be increased to the previous level. That is, if the air conditioning level is the first level, the level should be increased to the second level, and if the air conditioning level is the second level, the level should be increased to the third level.

[0082] The above-described implementation scheme of this application monitors the defrosting status, vehicle energy consumption, and whether the side panel of the dashboard generates a Coanda effect on the airflow of the defrosting vent by acquiring the frost ratio, air conditioning setting, and adsorption level. Based on the frost ratio, air conditioning setting, and adsorption level, the air conditioning setting can be adjusted, and it can be determined whether to activate the anti-Coanda effect control strategy. This achieves defrosting of the windshield to improve driving safety while saving vehicle energy consumption.

[0083] In an optional embodiment of this application, an energy-saving control strategy is implemented for the air conditioning setting, including:

[0084] Determine whether the frosting ratio is greater than or equal to the first preset ratio;

[0085] When the frosting ratio is greater than or equal to the first preset ratio, the frosting ratio is obtained once every first preset time interval; when the frosting ratio is less than the second preset ratio, the air conditioner speed is controlled to be reduced to the first speed.

[0086] When the frost ratio is less than the first preset ratio, the frost ratio is obtained every second preset time interval. When the frost ratio is less than the second preset ratio, the air conditioner is controlled to be reduced to the first setting.

[0087] Wherein, the first preset duration is longer than the second preset duration.

[0088] In practical implementation, considering that the rate of decrease in the frost ratio differs depending on the frost ratio at the same defrosting speed, different intervals for detecting the frost ratio can be set for different frost ratios. When the frost ratio is greater than or equal to a first preset ratio, the frost ratio can be measured every first preset interval; when the frost ratio is less than the first preset ratio, the frost ratio can be measured every second preset interval, and the first preset interval is longer than the second preset interval. For example, the first preset interval can be set to 10 minutes, and the second preset interval can be set to 5 minutes.

[0089] For example, the first preset ratio can be set to 50%, and the second preset ratio can be set to 30%.

[0090] In the above-described implementation scheme of this application, when implementing the energy-saving control strategy, different intervals for detecting the frost ratio are set for different frost ratios, thereby reducing the number of times the frost ratio is detected and reducing unnecessary consumption of computing and storage resources.

[0091] In an optional embodiment of this application, after determining to activate the anti-Coanda effect control strategy, the method further includes:

[0092] When either the vehicle air conditioning or the defrosting function is detected to be off, the distance between the side panel and the windshield is restored to the initial distance, and the tilt angle of the side panel is restored to the initial angle.

[0093] In the specific implementation process, after the anti-Coanda effect control strategy is activated, when it is detected that the vehicle air conditioning or defrosting function is turned off, it indicates that the vehicle does not currently require defrosting. At this time, based on visual aesthetic considerations, the distance between the side panel and the windshield is restored to the initial distance, and the tilt angle of the side panel is restored to the initial angle.

[0094] The above-described implementation scheme of this application ensures the aesthetics of the vehicle by restoring the side panel to its initial distance and angle when the vehicle's air conditioning or defrosting function is detected to be off.

[0095] The defrosting method provided by the embodiments of this application has been described above. The defrosting device provided by the embodiments of this application will be described below with reference to the accompanying drawings.

[0096] like Figure 3 As shown, this embodiment of the invention also provides a defrosting device, the device comprising:

[0097] The acquisition module 201 is used to acquire the air conditioning setting, the frost ratio on the windshield, and the adsorption level when the defrosting function of the vehicle air conditioning is turned on; wherein, the adsorption level is used to indicate the degree to which the airflow from the defrosting air outlet is adsorbed onto the side panel of the instrument panel near the windshield.

[0098] The first processing module 202 is used to adjust the air conditioning setting according to the adsorption level, the frosting ratio, and the air conditioning setting, and to determine whether to activate the anti-Coanda effect control strategy. The anti-Coanda effect control strategy includes at least one of adjusting the distance between the side panel and the windshield from an initial distance to a target distance and adjusting the tilt angle of the side panel from an initial angle to a target angle. The initial distance is less than the target distance, and the initial angle is greater than the target angle.

[0099] Optionally, the acquisition module includes:

[0100] The first acquisition submodule is used to acquire a first wind speed and a second wind speed; wherein, the first wind speed is the first wind speed corresponding to the airflow flowing along the windshield in the airflow generated by the defrost air outlet, and the second wind speed is the second wind speed corresponding to the airflow flowing along the side panel in the airflow generated by the defrost air outlet.

[0101] The second acquisition submodule is used to acquire the air outlet direction of the vehicle air conditioner, wherein the air outlet direction includes the defrosting direction, the foot blowing direction and the face blowing direction;

[0102] The first determining submodule is used to determine the reference wind speed corresponding to the airflow allocated to the defrost air outlet based on the air outlet direction and the air conditioner setting.

[0103] The second determining submodule is used to determine the adsorption level based on the reference wind speed, the first wind speed, and the second wind speed.

[0104] Optionally, the second determining submodule includes:

[0105] The first determining unit is used to determine a target wind speed that matches the reference wind speed; wherein, the target wind speed is the upper limit wind speed corresponding to the second wind speed when the adsorption level is the first level;

[0106] The second determining unit is used to determine the adsorption level as the first level when the first wind speed is greater than or equal to the reference wind speed and the second wind speed is less than the target wind speed.

[0107] The third determining unit is used to determine the adsorption level as the second level when the first wind speed is less than the reference wind speed and the second wind speed is greater than the reference wind speed.

[0108] Optionally, the acquisition module includes:

[0109] The third acquisition submodule is used to acquire the frost area on the windshield;

[0110] The third determining submodule is used to determine the overlapping area of ​​the frosted area and the driving vision area on the windshield as the target frosted area;

[0111] The fourth determining submodule is used to determine the frosting ratio based on the area of ​​the target frosting area and the area corresponding to the driving field of vision area.

[0112] Optionally, the adsorption level includes a first level and a second level, wherein the adsorption degree corresponding to the second level is higher than that corresponding to the first level; the air conditioning speed includes a first speed, a second speed, and a third speed.

[0113] The first processing module includes:

[0114] The first processing submodule is configured to, when the air conditioner setting is the first setting and the adsorption level is the second level, execute the first control submodule to control the air conditioner setting to be increased to the target setting and to obtain the adsorption level again; when the adsorption level is obtained again to the second level, activate the anti-Coanda effect control strategy and, after a target preset time, control the air conditioner setting to be decreased to the first setting; when the adsorption level is obtained again to the first level, execute the second control submodule to implement an energy-saving control strategy for the air conditioner setting.

[0115] The second processing submodule is used to execute the first control submodule when the air conditioner setting is the second setting and the adsorption level is the second level, to control the air conditioner setting to be increased to the target setting and to obtain the adsorption level again; when the adsorption level is obtained again to the second level, the anti-Coanda effect control strategy is activated, and after a target preset time, the air conditioner setting is controlled to be decreased to the first setting; when the adsorption level is obtained again to the first level, the second control submodule is executed to implement an energy-saving control strategy for the air conditioner setting.

[0116] The third processing submodule is used to activate the anti-Coanda effect control strategy when the air conditioner setting is the third setting and the adsorption level is the second level, and control the air conditioner setting to decrease to the first setting after a target preset time; when the adsorption level is obtained again to the first level, the second control submodule is executed to implement an energy-saving control strategy for the air conditioner setting.

[0117] The fourth processing submodule is used to execute the second control submodule when the air conditioner setting is the second or third setting and the adsorption level is the first level, so as to implement the energy-saving control strategy for the air conditioner setting.

[0118] Optionally, the first control submodule includes:

[0119] The first judgment unit is used to determine whether the frosting ratio is greater than or equal to the first preset ratio;

[0120] The first control unit is configured to determine the target gear as the third gear when the frost ratio is greater than or equal to the first preset ratio, and control the air conditioner to be upgraded to the third gear.

[0121] The second control unit is configured to, when the frosting ratio is less than the first preset ratio, if the air conditioner setting is the first setting, determine the target setting as the second setting and control the air conditioner setting to be increased to the second setting; if the air conditioner setting is the second setting, determine the target setting as the third setting and control the air conditioner setting to be increased to the third setting.

[0122] Optionally, the second control submodule includes:

[0123] The second judgment unit is used to determine whether the frosting ratio is greater than or equal to the first preset ratio;

[0124] The third control unit is used to acquire the frost ratio once every first preset time interval when the frost ratio is greater than or equal to the first preset ratio, and to control the air conditioner to reduce the speed to the first speed when the frost ratio is less than the second preset ratio.

[0125] The fourth control unit is used to acquire the frost ratio once every second preset time interval when the frost ratio is less than the first preset ratio, and control the air conditioner to reduce the speed to the first speed when the frost ratio is less than the second preset ratio.

[0126] Wherein, the first preset duration is longer than the second preset duration.

[0127] Optionally, after determining to activate the anti-Coanda effect control strategy, the device further includes:

[0128] The second processing module is used to restore the distance between the side panel and the windshield to the initial distance and the tilt angle of the side panel to the initial angle when either the vehicle air conditioning is turned off or the defrosting function is turned off.

[0129] The defrosting device provided in this application monitors the defrosting status, vehicle energy consumption, and whether the side panel of the dashboard generates a Coanda effect on the airflow at the defrosting vent by acquiring the frost ratio, air conditioning setting, and adsorption level. Based on the frost ratio, air conditioning setting, and adsorption level, the device can adjust the air conditioning setting and determine whether to activate the anti-Coanda effect control strategy. This achieves defrosting of the windshield to improve driving safety while saving vehicle energy consumption.

[0130] As the device embodiment is basically similar to the method embodiment, the description is relatively simple, and relevant parts can be found in the description of the method embodiment.

[0131] This application also provides an electronic device that includes the various processes of the above-described defrosting device embodiments and can achieve the same technical effect. To avoid repetition, it will not be described again here.

[0132] This application also provides an electronic device, including: a processor, a memory, and a computer program stored in the memory and executable on the processor. When the computer program is executed by the processor, it implements the various processes of the above-described defrosting method embodiments and achieves the same technical effect. To avoid repetition, it will not be described again here.

[0133] For example, Figure 3 A schematic diagram of the physical structure of an electronic device is shown. (For example...) Figure 3 As shown, the electronic device may include: a processor 310, a communication interface 320, a memory 330, and a communication bus 440, wherein the processor 310, the communication interface 320, and the memory 330 communicate with each other through the communication bus 340. The processor 310 can call logic instructions in the memory 330. The processor 310 is used to perform the following steps: when the defrosting function of the vehicle air conditioner is on, it acquires the air conditioning setting, the frost ratio on the windshield, and the adsorption level; wherein, the adsorption level is used to indicate the degree to which the airflow from the defrosting vent is adsorbed onto the side panel of the dashboard near the windshield; according to the adsorption level, the frost ratio, and the air conditioning setting, it adjusts the air conditioning setting and determines whether to activate the anti-Coanda effect control strategy, wherein the anti-Coanda effect control strategy includes at least one of adjusting the distance between the side panel and the windshield from an initial distance to a target distance and adjusting the tilt angle of the side panel from an initial angle to a target angle, wherein the initial distance is less than the target distance and the initial angle is greater than the target angle. The processor 310 can also execute other schemes in the embodiments of this application, which will not be further described here.

[0134] Furthermore, the logical instructions in the aforementioned memory 330 can be implemented as software functional units and, when sold or used as independent products, can be stored in a computer-readable storage medium. Based on this understanding, the technical solution of this application, in essence, or the part that contributes to the prior art, or a portion of the technical solution, can be embodied in the form of a software product. This computer software product is stored in a storage medium and includes several instructions to cause a computer device (which may be a personal computer, server, or network device, etc.) to execute all or part of the steps of the methods described in the various embodiments of this application.

[0135] This application also provides a computer-readable storage medium storing a computer program. When the computer program is executed by a processor, it implements the various processes of the above-described defrosting method embodiments and achieves the same technical effect. To avoid repetition, it will not be described again here. The computer-readable storage medium may be a read-only memory (ROM), a random access memory (RAM), a magnetic disk, or an optical disk.

[0136] It should be noted that, in this document, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such a process, method, article, or apparatus. Unless otherwise specified, an element defined by the phrase "comprising one..." does not exclude the presence of other identical elements in the process, method, article, or apparatus that includes that element.

[0137] Through the above description of the embodiments, those skilled in the art can clearly understand that the methods of the above embodiments can be implemented by means of software plus necessary general-purpose hardware platforms. Of course, they can also be implemented by hardware, but in many cases the former is a better implementation method. Based on this understanding, the technical solution of this application, in essence, or the part that contributes to the prior art, can be embodied in the form of a software product. This computer software product is stored in a storage medium (such as ROM / RAM, magnetic disk, optical disk) and includes several instructions to cause a terminal (which may be a mobile phone, computer, server, air conditioner, or network device, etc.) to execute the methods described in the various embodiments of this application.

[0138] The embodiments of this application have been described above with reference to the accompanying drawings. However, this application is not limited to the specific embodiments described above. The specific embodiments described above are merely illustrative and not restrictive. Those skilled in the art can make many other forms under the guidance of this application without departing from the spirit and scope of the claims, and all of these forms are within the protection scope of this application.

[0139] Those skilled in the art will recognize that the units and algorithm steps of the various examples described in conjunction with the embodiments disclosed in this application can be implemented in electronic hardware, or a combination of computer software and electronic hardware. Whether these functions are implemented in hardware or software depends on the specific application and design constraints of the technical solution. Those skilled in the art can use different methods to implement the described functions for each specific application, but such implementation should not be considered beyond the scope of this application.

[0140] Those skilled in the art will understand that, for the sake of convenience and brevity, the specific working processes of the systems, devices, and units described above can be referred to the corresponding processes in the foregoing method embodiments, and will not be repeated here.

[0141] In the embodiments provided in this application, it should be understood that the disclosed apparatus and methods can be implemented in other ways. For example, the apparatus embodiments described above are merely illustrative. For instance, the division of units is only a logical functional division, and in actual implementation, there may be other division methods. For example, multiple units or components may be combined or integrated into another system, or some features may be ignored or not executed. Furthermore, the coupling or direct coupling or communication connection shown or discussed may be through some interfaces; the indirect coupling or communication connection between apparatuses or units may be electrical, mechanical, or other forms.

[0142] The units described as separate components may or may not be physically separate. The components shown as units may or may not be physical units; that is, they may be located in one place or distributed across multiple network units. Some or all of the units can be selected to achieve the purpose of this embodiment according to actual needs.

[0143] In addition, the functional units in the various embodiments of this application can be integrated into one processing unit, or each unit can exist physically separately, or two or more units can be integrated into one unit.

[0144] If the aforementioned functions are implemented as software functional units and sold or used as independent products, they can be stored in a computer-readable storage medium. Based on this understanding, the technical solution of this application, in essence, or the part that contributes to the prior art, or a portion of the technical solution, can be embodied in the form of a software product. This computer software product is stored in a storage medium and includes several instructions to cause a computer device (which may be a personal computer, server, or network device, etc.) to execute all or part of the steps of the methods described in the various embodiments of this application. The aforementioned storage medium includes various media capable of storing program code, such as USB flash drives, portable hard drives, ROM, RAM, magnetic disks, or optical disks.

[0145] The above description is merely a specific embodiment of this application, but the scope of protection of this application is not limited thereto. Any changes or substitutions that can be easily conceived by those skilled in the art within the scope of the technology disclosed in this application should be included within the scope of protection of this application.

Claims

1. A defrosting method, characterized in that, The method includes: When the defrosting function of the vehicle air conditioner is turned on, the air conditioner setting, the frost ratio on the windshield, and the adsorption level are obtained; wherein, the adsorption level is used to indicate the degree to which the airflow from the defrost vent is adsorbed onto the side panel of the dashboard near the windshield. Based on the adsorption level, the frosting ratio, and the air conditioning setting, the air conditioning setting is adjusted, and it is determined whether to activate the anti-Coanda effect control strategy. The anti-Coanda effect control strategy includes at least one of adjusting the distance between the side panel and the windshield from an initial distance to a target distance and adjusting the tilt angle of the side panel from an initial angle to a target angle. The initial distance is less than the target distance, and the initial angle is greater than the target angle. The tilt angle is the angle between the plane where the side plate is located and the vertical plane. When the tilt angle is the initial angle, the plane where the side plate is located is an inclined plane. When the tilt angle is the target angle, the plane where the side plate is located is a vertical plane. Among them, obtaining the adsorption level includes: Obtain a first wind speed and a second wind speed; wherein, the first wind speed is the first wind speed corresponding to the airflow flowing along the windshield in the airflow generated by the defrost air outlet, and the second wind speed is the second wind speed corresponding to the airflow flowing along the side panel in the airflow generated by the defrost air outlet. Obtain the air outlet mode of the vehicle air conditioner; Based on the air outlet mode and the air conditioning setting, determine the reference wind speed corresponding to the airflow allocated to the defrost air outlet; The adsorption level is determined based on the reference wind speed, the first wind speed, and the second wind speed.

2. The defrosting method according to claim 1, characterized in that, Determining the adsorption level based on the reference wind speed, the first wind speed, and the second wind speed includes: Determine a target wind speed that matches the reference wind speed; wherein, the target wind speed is the upper limit wind speed corresponding to the second wind speed when the adsorption level is the first level; When the first wind speed is greater than or equal to the reference wind speed and the second wind speed is less than the target wind speed, the adsorption level is determined to be the first level. When the first wind speed is less than the reference wind speed and the second wind speed is greater than the reference wind speed, the adsorption level is determined to be the second level.

3. The defrosting method according to claim 1, characterized in that, To obtain the percentage of frost on the windshield, including: Obtain the frost area on the windshield; The overlapping area between the frosted area and the driving visibility area on the windshield is defined as the target frosted area. The frost ratio is determined based on the area of ​​the target frost area and the area corresponding to the driving field of vision area.

4. The defrosting method according to claim 1 or 2, characterized in that, The adsorption levels include a first level and a second level, wherein the adsorption degree corresponding to the second level is higher than that corresponding to the first level; the air conditioning settings include a first setting, a second setting, and a third setting; Based on the adsorption level, the frosting ratio, and the air conditioning setting, the air conditioning setting is adjusted, and it is determined whether to activate the anti-Coanda effect control strategy, including: When the air conditioner setting is the first setting and the adsorption level is the second level, the air conditioner setting is increased to the target setting, and the adsorption level is obtained again; when the adsorption level is obtained again to the second level, the anti-Coanda effect control strategy is activated, and after a target preset time, the air conditioner setting is reduced to the first setting; when the adsorption level is obtained again to the first level, an energy-saving control strategy is executed on the air conditioner setting. When the air conditioner setting is the second setting and the adsorption level is the second level, the air conditioner setting is increased to the target setting, and the adsorption level is obtained again; when the adsorption level is obtained again to the second level, the anti-Coanda effect control strategy is activated, and after a target preset time, the air conditioner setting is reduced to the first setting; when the adsorption level is obtained again to the first level, an energy-saving control strategy is executed on the air conditioner setting. When the air conditioner is at the third setting and the adsorption level is at the second level, the anti-Coanda effect control strategy is activated, and after a target preset time, the air conditioner setting is reduced to the first setting; when the adsorption level is obtained again as the first level, an energy-saving control strategy is executed on the air conditioner setting. When the air conditioner setting is the second or third setting and the adsorption level is the first level, the energy-saving control strategy is executed for the air conditioner setting.

5. The defrosting method according to claim 4, characterized in that, Controlling the air conditioning setting to the target setting includes: Determine whether the frosting ratio is greater than or equal to the first preset ratio; When the frosting ratio is greater than or equal to the first preset ratio, the target setting is determined to be the third setting, and the air conditioning setting is controlled to be increased to the third setting. When the frosting ratio is less than the first preset ratio, if the air conditioner setting is the first setting, the target setting is determined to be the second setting, and the air conditioner setting is controlled to be increased to the second setting; if the air conditioner setting is the second setting, the target setting is determined to be the third setting, and the air conditioner setting is controlled to be increased to the third setting.

6. The defrosting method according to claim 4, characterized in that, Implementing an energy-saving control strategy for the aforementioned air conditioning settings includes: Determine whether the frosting ratio is greater than or equal to the first preset ratio; When the frosting ratio is greater than or equal to the first preset ratio, the frosting ratio is obtained once every first preset time interval; when the frosting ratio is less than the second preset ratio, the air conditioner speed is controlled to be reduced to the first speed. When the frost ratio is less than the first preset ratio, the frost ratio is obtained every second preset time interval. When the frost ratio is less than the second preset ratio, the air conditioner is controlled to be reduced to the first setting. Wherein, the first preset duration is longer than the second preset duration.

7. The defrosting method according to claim 1, characterized in that, After determining to activate the anti-Coanda effect control strategy, the method further includes: When either the vehicle air conditioning or the defrosting function is detected to be off, the distance between the side panel and the windshield is restored to the initial distance, and the tilt angle of the side panel is restored to the initial angle.

8. A defrosting device, characterized in that, include: The acquisition module is used to acquire the air conditioning setting, the frost ratio on the windshield, and the adsorption level when the defrosting function of the vehicle air conditioning is turned on; wherein, the adsorption level is used to indicate the degree to which the airflow from the defrosting air outlet is adsorbed onto the side panel of the dashboard near the windshield. The first processing module is used to adjust the air conditioning setting according to the adsorption level, the frosting ratio, and the air conditioning setting, and to determine whether to activate the anti-Coanda effect control strategy. The anti-Coanda effect control strategy includes at least one of adjusting the distance between the side panel and the windshield from an initial distance to a target distance and adjusting the tilt angle of the side panel from an initial angle to a target angle. The initial distance is less than the target distance, and the initial angle is greater than the target angle. The tilt angle is the angle between the plane where the side plate is located and the vertical plane. When the tilt angle is the initial angle, the plane where the side plate is located is an inclined plane. When the tilt angle is the target angle, the plane where the side plate is located is a vertical plane. The acquisition module includes: The first acquisition submodule is used to acquire a first wind speed and a second wind speed; wherein, the first wind speed is the first wind speed corresponding to the airflow flowing along the windshield in the airflow generated by the defrost air outlet, and the second wind speed is the second wind speed corresponding to the airflow flowing along the side panel in the airflow generated by the defrost air outlet. The second acquisition submodule is used to acquire the air outlet direction of the vehicle air conditioner, wherein the air outlet direction includes the defrosting direction, the foot blowing direction and the face blowing direction; The first determining submodule is used to determine the reference wind speed corresponding to the airflow allocated to the defrost air outlet based on the air outlet direction and the air conditioner setting. The second determining submodule is used to determine the adsorption level based on the reference wind speed, the first wind speed, and the second wind speed.

9. A vehicle, characterized in that, Includes the defrosting device as described in claim 8.

Images