Defogging method, device and equipment for rearview mirror of vehicle and storage medium

Abstract

The invention relates to the field of vehicle accessories, in particular to a vehicle rearview mirror demisting method, device and equipment and a storage medium. A power unit is arranged in a shell of the rearview mirror, a window is arranged on the front face of the shell, an air outlet is formed between a lens of the rearview mirror and the shell, and the method comprises the steps that first rainfall of a scene where a vehicle is located is detected; the power unit is controlled to generate airflow based on the first rainfall, so that the power unit can output the airflow to a demisting area through the air outlet, and the demisting area is the area between the lens and the shell.

Description

Technical Field

[0001] The present disclosure relates to the field of vehicle accessories, and more specifically, to a vehicle rearview mirror defogger method, device, equipment and storage medium. Background Art

[0002] In the wet and rainy season, defogger of the rearview mirror becomes particularly important. When the rainfall is heavy, a layer of water mist is easily condensed on the surface of the rearview mirror, which seriously affects the driver's vision clarity and increases the potential safety hazard during driving. Especially when turning, changing lanes or reversing, the blurred vision may lead to misjudgment and cause traffic accidents. Therefore, ensuring that the rearview mirror is clear and fog-free is an indispensable part of ensuring driving safety.

[0003] However, although the existing rearview mirror defogger method can solve the problem to a certain extent, it also has obvious defects. For example, many vehicles are equipped with a rearview mirror heating function, which increases the mirror surface temperature through electric heating wires to evaporate the water mist. However, this method has limited effect in extremely cold or humid environments, and the heating process may take some time to completely remove the water mist. Therefore, finding a more efficient defogger method is still an urgent problem to be solved in the field of automotive safety. Summary of the invention

[0004] An object of the present disclosure is to provide a vehicle rearview mirror defogger method, which can solve the problem of low defogger efficiency of rearview mirror heating.

[0005] According to a first aspect of the present disclosure, a vehicle rearview mirror defogger method is provided, wherein a power unit is disposed inside a rearview mirror housing, a window is disposed on the front of the housing, and an air outlet is disposed between a lens of the rearview mirror and the housing, the method comprising:

[0006] Detecting the first rainfall amount in the scene where the vehicle is located;

[0007] The power unit is controlled to generate airflow based on the first rainfall, so that the power unit can output the airflow to the defogging area through the air outlet, and the defogging area is the area between the lens and the shell.

[0008] Optionally, the back side of the housing has an air inlet, and the air inlet is connected to the demisting area through the power unit and the air outlet; the method further includes:

[0009] Get the speed of the vehicle;

[0010] The controlling the power unit to generate airflow based on the first rainfall comprises:

[0011] Whether to control the power unit to generate airflow is determined according to the first rainfall amount and the speed.

[0012] Optionally, determining whether to control the power unit to generate airflow according to the first rainfall and the speed includes:

[0013] When the vehicle speed is less than a first speed threshold and the rainfall is greater than a first rainfall threshold, controlling the power unit to generate airflow;

[0014] When the vehicle speed is greater than the first speed threshold, determining a second rainfall corresponding to the vehicle speed, wherein the second rainfall represents: when the power unit is not started, the airflow output from the rearview mirror air outlet corresponding to the vehicle speed realizes the maximum rainfall that the rearview mirror defogger function can cope with;

[0015] When the first rainfall is greater than the second rainfall, the power unit is controlled to generate airflow.

[0016] Optionally, an air outlet channel is formed between the power unit and the air outlet, and the first heating unit is disposed in the air outlet channel to heat the airflow in the air outlet channel. The method further includes:

[0017] determining a third rainfall amount, wherein the third rainfall amount represents: when the power unit is started, the vehicle speed and the airflow output from the rearview mirror air outlet generated by the power unit to achieve a maximum rainfall amount that a rearview mirror defogger function can cope with;

[0018] When the first rainfall is greater than the third rainfall, the first heating unit is controlled to heat the airflow.

[0019] Optionally, a temperature detection module is provided in the rearview mirror, for detecting the temperature of the first heating unit;

[0020] The method further comprises:

[0021] When the temperature of the first heating unit is greater than a first temperature threshold, controlling the first heating unit to stop heating the airflow in the air outlet channel;

[0022] When the temperature of the first heating unit is lower than a second temperature threshold, the first heating unit is controlled to heat the airflow in the air outlet channel.

[0023] Optionally, an air outlet channel is formed between the power unit and the air outlet, and the first heating unit is disposed in the air outlet channel to heat the airflow in the air outlet channel. The method further includes:

[0024] determining a fourth rainfall amount, wherein the fourth rainfall amount represents: when the power unit is started, the airflow generated by the power unit can achieve a maximum rainfall amount that a rearview mirror defogger function can cope with;

[0025] When the first rainfall is greater than the fourth rainfall, the first heating unit is controlled to heat the airflow.

[0026] Optionally, a temperature detection module is provided in the rearview mirror, for detecting the temperature of the first heating unit;

[0027] The method further comprises:

[0028] When the temperature of the first heating unit is greater than a first temperature threshold, controlling the first heating unit to stop heating the airflow in the air outlet channel;

[0029] When the temperature of the first heating unit is lower than a second temperature threshold, the first heating unit is controlled to heat the airflow in the air outlet channel.

[0030] According to a second aspect of the present disclosure, a vehicle rearview mirror defogger is provided, wherein a power unit is arranged inside a rearview mirror housing, a window is provided on the front of the housing, an air outlet is arranged between the lens of the rearview mirror and the housing, and the device comprises:

[0031] A detection module, used for detecting a first rainfall amount in a scene where the vehicle is located;

[0032] A control module is used to control the power unit to generate airflow based on the first rainfall, so that the power unit can output the airflow to the defogging area through the air outlet, and the defogging area is the area between the lens and the shell.

[0033] According to a third aspect of the present disclosure, a vehicle electronic device is provided, comprising a processor and a memory, wherein the memory stores computer instructions, and when the computer instructions are executed by the processor, the steps of any one of the methods described in the first aspect are implemented.

[0034] According to a fourth aspect of the present disclosure, there is provided a storage medium on which computer instructions are stored. When the computer instructions are executed by a processor, the steps of any one of the methods described in the first aspect are implemented.

[0035] One technical effect of the present disclosure is to provide a vehicle rearview mirror defogger method, wherein a power unit is provided inside the rearview mirror housing, a window is provided on the front of the housing, and an air outlet is provided between the lens of the rearview mirror and the housing. The method can detect a first rainfall in the scene where the vehicle is located; and based on the first rainfall, the power unit is controlled to generate an airflow, so that the power unit can output the airflow through the air outlet to the defogger area in the area between the lens and the housing. In this way, the power unit can generate an airflow to accelerate the evaporation of water mist on the mirror surface to achieve a defogger effect. At the same time, the airflow can be covered on the mirror surface to effectively prevent rain from continuing to fall on the mirror surface, thereby improving the defogger efficiency.

[0036] Other features and advantages of the embodiments of the present disclosure will become apparent from the following detailed description of exemplary embodiments of the present disclosure with reference to the accompanying drawings. BRIEF DESCRIPTION OF THE DRAWINGS

[0037] The accompanying drawings, which constitute a part of the specification, illustrate embodiments of the present disclosure and, together with the description, serve to explain the principles of the embodiments of the present disclosure.

[0038] Figure 1 is a schematic structural diagram of a rearview mirror defog system according to an embodiment;

[0039] Figure 2 is a schematic structural diagram of a rearview mirror defog system according to an embodiment;

[0040] Figure 3 is a flow chart of a vehicle rearview mirror defogging method according to one embodiment;

[0041] Figure 4 The figure is a schematic structural diagram of a vehicle rearview mirror defogger according to an embodiment. DETAILED DESCRIPTION

[0042] Various exemplary embodiments of the present disclosure will now be described in detail with reference to the accompanying drawings. It should be noted that the relative arrangement of components and steps, numerical expressions and numerical values ​​set forth in these embodiments do not limit the scope of the present invention unless otherwise specifically stated.

[0043] The following description of at least one exemplary embodiment is merely illustrative in nature and is in no way intended to limit the invention, its application, or uses.

[0044] Techniques and equipment known to ordinary technicians in the relevant art may not be discussed in detail, but where appropriate, the techniques and equipment should be considered part of the specification.

[0045] In all examples shown and discussed herein, any specific values ​​should be interpreted as merely exemplary and not as limiting. Therefore, other examples of the exemplary embodiments may have different values.

[0046] It should be noted that like reference numerals and letters refer to similar items in the following figures, and therefore, once an item is defined in one figure, it need not be further discussed in subsequent figures.

[0047] In the embodiment of the present application, the specific structure of the vehicle rearview mirror can be as follows: Figure 1 and Figure 2 As shown, in Figure 1 In the embodiment, a power unit 3 is disposed inside the housing 1, a viewing window is provided on the front of the housing, and an air outlet 11 is disposed between the lens 2 of the rearview mirror and the housing 1. In this embodiment, an air outlet channel is formed between the power unit 3 and the air outlet 11, and the first heating unit 4 is disposed in the air outlet channel. Figure 2 In, with Figure 1 Different times, Figure 2 The rearview mirror in the embodiment also includes an air inlet 12 at the back of the housing.

[0048] In this embodiment, Figure 1 For example, the power unit 3 can be an air source or an air pump. The airflow with a set flow rate provided by the power unit 3 can be transported to the air outlet 11 through the air flow channel inside the shell 1, and further output from the air outlet 11 to the demisting area. The power unit 11 can also input the airflow outside the shell 1 from the air inlet 12 into the shell 1, thereby improving the demisting efficiency on the mirror side of the lens 2.

[0049] The front of the shell 1 is on the same side as the front of the rearview mirror, and the back of the shell 1 is on the same side as the back of the rearview mirror. The front of the shell 1 has a window, and the lens 2 is arranged in the shell 1, and the mirror side of the lens 2 faces the channel of the window, so that the user can observe the field of view image captured on the lens 2 through the window.

[0050] The air outlet 11 between the lens 2 and the housing 1 can be connected to the power unit 3. When the power unit 3 is in operation, it can drive the airflow of the housing 1 to be output from the housing 1 through the air outlet 12, and the power unit 3 can input the airflow outside the housing 1 into the housing 1 through the air inlet 12. The airflow direction is shown in FIG. Figure 1 As indicated by the arrow.

[0051] A demisting area is formed between the lens 2 and the window, and the opening of the air outlet 11 faces the demisting area. The airflow output from the shell 1 from the air outlet 11 can enter the demisting area. The demisting area is close to the mirror side of the lens 2, so the mirror side of the lens 2 can be demisted by the airflow flowing in the demisting area, thereby improving the demisting efficiency of the lens 2.

[0052] It should be noted that Figure 1 The structure is just an example. In this embodiment, air intake holes may be provided at other positions outside the back side of the reflector housing.

[0053] In this embodiment, Figure 2 For example, the power unit 3 can be an air source or an air pump. The airflow with a set flow rate provided by the power unit 3 can be transported to the air outlet 11 through the air flow channel inside the shell 1, and further output from the air outlet 11 to the demisting area. The power unit 11 can also input the airflow outside the shell 1 from the air inlet 12 into the shell 1, thereby improving the demisting efficiency on the mirror side of the lens 2.

[0054] The front of the shell 1 is on the same side as the front of the rearview mirror, and the back of the shell 1 is on the same side as the back of the rearview mirror. The front of the shell 1 has a window, and the lens 2 is arranged in the shell 1, and the mirror side of the lens 2 faces the channel of the window, so that the user can observe the field of view image captured on the lens 2 through the window.

[0055] The air outlet 11 and the air inlet 12 between the lens 2 and the housing 1 can be connected to the power unit 3. When the power unit 3 is in operation, it can drive the airflow of the housing 1 to be output from the housing 1 through the air outlet 12, and the power unit 3 can input the airflow outside the housing 1 into the housing 1 through the air inlet 12. The airflow direction is shown in FIG. Figure 1 to Figure 2 As indicated by the arrow.

[0056] A demisting area is formed between the lens 2 and the window, and the opening of the air outlet 11 faces the demisting area. The airflow output from the shell 1 from the air outlet 11 can enter the demisting area. The demisting area is close to the mirror side of the lens 2, so the mirror side of the lens 2 can be demisted by the airflow flowing in the demisting area, thereby improving the demisting efficiency of the lens 2.

[0057] In one embodiment, see Figure 1 and Figure 2 The rearview mirror further includes a first heating unit 4, an air outlet channel is formed between the power unit 3 and the air outlet 12, and the first heating unit 4 is arranged in the air outlet channel.

[0058] In this embodiment, the first heating unit 4 may include a heating wire or a heating film. When the airflow is transported between the power unit 3 and the air outlet 12, the first heating unit 4 can heat the airflow so that the airflow output from the air outlet 12 to the defogging area is a hot airflow. The hot airflow can accelerate the evaporation of water vapor on the lens 2 and improve the defogging efficiency of the lens 2.

[0059] The present application embodiment provides a vehicle rearview mirror defog method, which can be applied to vehicles. Figure 3 As shown, the method includes steps S11-S12.

[0060] Step S11, detecting a first rainfall amount in a scene where the vehicle is located.

[0061] In this embodiment, a rain sensor may be provided on the vehicle, and the rain sensor may be used to detect the amount of rain in the environment and scene where the vehicle is located. The automobile rain sensor determines the amount of rain by measuring the size and number of raindrops on the windshield. When the windshield is dry, the sensor will be initialized and record the light intensity received at this time. This is usually done when the vehicle is started or the sensor detects that there are no raindrops on the windshield for a long time. When there are raindrops on the windshield, part of the light will be scattered by the raindrops, resulting in a decrease in the light reflected back. The sensor determines whether there are raindrops falling on the windshield by comparing the difference in light intensity when it is dry and when there are raindrops. The microprocessor inside the sensor analyzes the changes in the intensity of the received light signal and determines the amount of rain according to the degree of signal attenuation. The greater the amount of rain, the less light is reflected back, and the lower the intensity of the light signal received by the sensor.

[0062] Step S12, based on the first rainfall, the power unit is controlled to generate airflow, so that the power unit can output the airflow to the defogging area through the air outlet, and the defogging area is the area between the lens and the shell.

[0063] In this embodiment, the power unit can be controlled to generate airflow based on the first rainfall, so that the airflow is output to the defogging area through the air outlet, accelerating the evaporation of water mist. At the same time, an air film can be formed in the defogging area outside the mirror surface 2 to prevent part of the water mist from adhering to the mirror surface. Based on the first rainfall, the power unit is controlled to generate airflow, and the power unit can be turned on to generate airflow when the first rainfall is greater than a preset threshold. Specifically, the preset threshold can be 0, that is, when it starts to rain, the power unit is controlled to generate airflow. In another example, when the vehicle rearview mirror leaves the factory, the corresponding relationship between the airflow size and the rainfall can be pre-tested, that is, the specific airflow size can achieve the maximum rainfall corresponding to the defogging function. In actual situations, the power of the power unit can be adjusted according to the detected rainfall, thereby adjusting the airflow size, and on the basis of achieving the defogging function, energy consumption can be minimized. Save energy.

[0064] In this example, a vehicle rearview mirror defogger method is provided, wherein a power unit is provided inside the rearview mirror housing, a window is provided on the front of the housing, and an air outlet is provided between the lens of the rearview mirror and the housing. The method can detect a first rainfall in the scene where the vehicle is located; and based on the first rainfall, the power unit is controlled to generate an airflow, so that the power unit can output the airflow through the air outlet to the defogger area of ​​the area between the lens and the housing. In this way, the power unit can generate an airflow to accelerate the evaporation of water mist on the mirror surface to achieve a defogger effect. At the same time, the airflow can be covered on the mirror surface to effectively prevent rain from continuing to fall on the mirror surface, thereby improving the defogger efficiency.

[0065] In one example of this embodiment, an air inlet is provided on the back of the shell, and the air inlet is connected to the demisting area through a power unit and an air outlet; the method also includes: obtaining the speed of the vehicle; controlling the power unit to generate airflow based on the first rainfall, including: determining whether to control the power unit to generate airflow according to the first rainfall and speed.

[0066] In the embodiment of the present application, the vehicle may also be provided with a speed sensor or an inertial sensor, etc., to measure the speed of the vehicle. Figure 2 The rearview mirror shown has an air inlet on the back and is connected to the air outlet. With this structure, when the vehicle is moving forward, natural wind will enter the air inlet, and the airflow will be output through the air outlet and blown to the defog area. At the same time, the faster the vehicle speed, the greater the relative airflow speed will be. Therefore, it can be determined whether it is necessary to control the power unit to generate additional airflow according to the amount of rainfall and the speed of the vehicle. For example, when the rainfall is heavy but the vehicle speed is low, the airflow brought by the moving car may not meet the defog demand. Therefore, the power unit can be turned on to generate airflow to enhance the defog effect. When the rainfall is small and the vehicle speed is high, the airflow brought by the moving car can meet the defog demand, and the power unit can be turned off to save power consumption.

[0067] In this embodiment, determining whether to control the power unit to generate airflow according to the first rainfall and speed includes: when the vehicle speed is less than the first speed threshold and the rainfall is greater than the first rainfall threshold, controlling the power unit to generate airflow; when the vehicle speed is greater than the first speed threshold, determining the second rainfall corresponding to the vehicle speed, the second rainfall represents: when the power unit is not started, the airflow output from the rearview mirror air outlet corresponding to the vehicle speed realizes the maximum rainfall that the rearview mirror defogger function can cope with. When the first rainfall is greater than the second rainfall, the power unit is controlled to generate airflow.

[0068] In this embodiment, the first speed threshold of the vehicle can be the airflow generated by the vehicle moving from the air inlet to the air outlet, which can realize the minimum speed threshold of the defogger function. The first rainfall threshold can be set to 0 or a relatively small value in this example. In the case of rain, if the vehicle speed is low, the defogger function cannot be realized by the airflow brought by the vehicle moving. At this time, the power unit can be controlled to generate airflow, and the defogger function of the rearview mirror can be realized by the airflow generated by the power unit.

[0069] When the speed of the vehicle is greater than the first speed threshold, that is, when the airflow output from the rearview mirror air outlet generated by the vehicle moving forward can achieve the defog function, the maximum rainfall that the airflow output from the rearview mirror air outlet caused by the vehicle moving forward can effectively cope with when the power unit is not started can be determined according to the real-time speed of the vehicle, that is, the rearview mirror defog function can be completed under a certain rainfall scenario at a specific vehicle speed. In this example, the corresponding relationship between the vehicle speed and the second rainfall can be pre-tested and stored so that confirmation can be made directly based on the preset relationship during actual application. Afterwards, it is determined whether the current rainfall is greater than the maximum rainfall that can be defogged corresponding to the current vehicle speed. If the current rainfall is greater, the power unit can be controlled to generate airflow to improve the defog effect of the vehicle rearview mirror. If it is less than, the power unit can be not controlled to generate airflow to avoid wasting energy.

[0070] In one example of the present embodiment, an air outlet channel is formed between the power unit and the air outlet, and a first heating unit is arranged in the air outlet channel for heating the air flow in the air outlet channel. The method also includes: determining a third rainfall, the third rainfall characterizing: when the power unit is started, the vehicle speed and the air flow output from the rearview mirror air outlet generated by the power unit, to achieve the maximum rainfall that the rearview mirror defogger function can cope with; when the first rainfall is greater than the third rainfall, controlling the first heating unit to heat the air flow.

[0071] In this embodiment, after the power unit is started, it can be further determined that at the current vehicle speed, after the power unit is started, the airflow generated by the power unit and the airflow brought by the vehicle speed can achieve the maximum rainfall of the defog function, that is, at a specific vehicle speed, after the power unit is started, the rearview mirror defog function can be completed under what rainfall scenario. In this example, the corresponding relationship between the vehicle speed and the third rainfall can be pre-tested and stored, so that confirmation can be made directly based on the preset relationship during actual application. Afterwards, it is determined whether the current rainfall is greater than the maximum rainfall that can be defogged corresponding to the current vehicle speed. If the current rainfall is greater, the first heating unit can be controlled to heat the airflow to improve the defog effect of the vehicle rearview mirror. If it is less than, the first heating unit can be not controlled to heat the airflow to avoid wasting energy.

[0072] In one example of the present embodiment, a temperature detection module is provided in the rearview mirror for detecting the temperature of the first heating unit; the method also includes: when the temperature of the first heating unit is greater than a first temperature threshold, controlling the first heating unit to stop heating the airflow in the air outlet channel; when the temperature of the first heating unit is less than a second temperature threshold, controlling the first heating unit to heat the airflow in the air outlet channel.

[0073] In this embodiment, the temperature detection module may include a temperature sensor or a thermistor, and the temperature sensor is arranged near the first heating unit and can monitor the heating temperature of the first heating unit. In this embodiment, the first temperature threshold may be the upper temperature limit for normal operation of the heating unit, and the second temperature threshold may be a lower temperature value for safe operation, which can be set based on actual conditions. When the temperature of the first heating unit is greater than the first temperature threshold, it means that there may be a safety risk if the heating unit continues to heat, so the heating unit can be controlled to temporarily stop working. It is cooled by airflow. When the temperature of the heating unit is less than the second temperature threshold, the first heating unit continues to be controlled.

[0074] In one example, when the temperature of the first heating unit is greater than the first temperature threshold, the power unit can be synchronously controlled to stop working to reduce safety risks. In another example, the temperature detection module can also synchronously monitor the temperature of the power unit and control the power unit to stop working when the temperature of the power unit is greater than the threshold.

[0075] In this example, a temperature detection module may also be provided in the rearview mirror to detect the temperature of the heating unit and determine whether it is necessary to control the operation of the heating unit based on the temperature of the heating unit to avoid safety risks caused by overheating of the heating unit.

[0076] In one example of this embodiment, an air outlet channel is formed between the power unit and the air outlet, and a first heating unit is arranged in the air outlet channel for heating the airflow in the air outlet channel. The method also includes: determining a fourth rainfall, wherein the third rainfall represents: when the power unit is started, the airflow generated by the power unit realizes the maximum rainfall that the rearview mirror defogger function can cope with; when the first rainfall is greater than the fourth rainfall, the first heating unit is controlled to heat the airflow.

[0077] In this embodiment, if Figure 1As shown, in a rearview mirror defogger system in which no air inlet is provided on the back of the rearview mirror housing, after the power unit is started, it can be further determined that when the power unit is started, the airflow generated by the power unit can achieve the maximum rainfall of the defogger function, that is, the rearview mirror defogger function can be completed under what rainfall scenario after the power unit is started. In this example, the fourth rainfall can be pre-tested and stored so that the fourth rainfall can be directly confirmed during actual application. Afterwards, it is determined whether the current rainfall is greater than the fourth rainfall. If the current rainfall is greater, the first heating unit can be controlled to heat the airflow to improve the defogger effect of the vehicle rearview mirror. If it is less than, the first heating unit can be not controlled to heat the airflow to avoid wasting energy.

[0078] In one example of the present embodiment, a temperature detection module is provided in the rearview mirror for detecting the temperature of the first heating unit; the method also includes: when the temperature of the first heating unit is greater than a first temperature threshold, controlling the first heating unit to stop heating the airflow in the air outlet channel; when the temperature of the first heating unit is less than a second temperature threshold, controlling the first heating unit to heat the airflow in the air outlet channel.

[0079] In this embodiment, the temperature detection module may include a temperature sensor or a thermistor, and the temperature sensor is arranged near the first heating unit and can monitor the heating temperature of the first heating unit. In this embodiment, the first temperature threshold may be the upper temperature limit for normal operation of the heating unit, and the second temperature threshold may be a lower temperature value for safe operation, which can be set based on actual conditions. When the temperature of the first heating unit is greater than the first temperature threshold, it means that there may be a safety risk if the heating unit continues to heat, so the heating unit can be controlled to temporarily stop working. It is cooled by airflow. When the temperature of the heating unit is less than the second temperature threshold, the first heating unit continues to be controlled.

[0080] In one example, when the temperature of the first heating unit is greater than the first temperature threshold, the power unit can be synchronously controlled to stop working to reduce safety risks. In another example, the temperature detection module can also synchronously monitor the temperature of the power unit and control the power unit to stop working when the temperature of the power unit is greater than the threshold.

[0081] like Figure 4 As shown, an embodiment of the present application also provides a vehicle rearview mirror defogger 100, wherein a power unit is arranged inside the rearview mirror shell, a window is provided on the front side of the shell, and an air outlet is arranged between the lens of the rearview mirror and the shell, and the method comprises: a detection module 101, for detecting a first rainfall amount in a scene where the vehicle is located; a control module 102, for controlling the power unit to generate an airflow based on the first rainfall amount, so that the power unit can output the airflow to the defogger area through the air outlet, and the defogger area is the area between the lens and the shell.

[0082] Optionally, the back of the housing has an air inlet, which is connected to the demisting area through the power unit and the air outlet; the device also includes:

[0083] The vehicle speed acquisition module is used to obtain the vehicle speed;

[0084] The control module is specifically used to determine whether to control the power unit to generate airflow according to the first rainfall and speed.

[0085] Optionally, determining whether to control the power unit to generate airflow according to the first rainfall amount and speed includes:

[0086] When the vehicle speed is less than a first speed threshold and the rainfall is greater than a first rainfall threshold, controlling the power unit to generate airflow;

[0087] When the vehicle speed is greater than the first speed threshold, a second rainfall corresponding to the vehicle speed is determined, where the second rainfall represents: when the power unit is not started, the airflow output from the rearview mirror outlet corresponding to the vehicle speed realizes the maximum rainfall that the rearview mirror defogger function can cope with;

[0088] When the first rainfall is greater than the second rainfall, the power unit is controlled to generate airflow.

[0089] Optionally, an air outlet channel is formed between the power unit and the air outlet, and the first heating unit is arranged in the air outlet channel for heating the air flow in the air outlet channel. The device further includes:

[0090] The second determination module is used to determine a third rainfall amount, where the third rainfall amount represents: when the power unit is started, the vehicle speed and the airflow output from the rearview mirror air outlet generated by the power unit to achieve the maximum rainfall that the rearview mirror defogger function can cope with;

[0091] The second control module is used to control the first heating unit to heat the airflow when the first rainfall is greater than the third rainfall.

[0092] Optionally, a temperature detection module is provided in the rearview mirror for detecting the temperature of the first heating unit;

[0093] The second control module is also used for:

[0094] When the temperature of the first heating unit is greater than a first temperature threshold, controlling the first heating unit to stop heating the airflow in the air outlet channel;

[0095] When the temperature of the first heating unit is lower than the second temperature threshold, the first heating unit is controlled to heat the airflow in the air outlet channel.

[0096] Optionally, an air outlet channel is formed between the power unit and the air outlet, and the first heating unit is arranged in the air outlet channel to heat the airflow in the air outlet channel. The device further includes:

[0097] A third determination module determines a fourth rainfall amount, wherein the fourth rainfall amount represents: when the power unit is started, the airflow generated by the power unit can achieve a maximum rainfall amount that the rearview mirror defogger function can cope with;

[0098] The third control module controls the first heating unit to heat the airflow when the first rainfall is greater than the fourth rainfall.

[0099] Optionally, a temperature detection module is provided in the rearview mirror for detecting the temperature of the first heating unit;

[0100] The third control module is also used for:

[0101] When the temperature of the first heating unit is greater than a first temperature threshold, controlling the first heating unit to stop heating the airflow in the air outlet channel;

[0102] When the temperature of the first heating unit is lower than the second temperature threshold, the first heating unit is controlled to heat the airflow in the air outlet channel.

[0103] An embodiment of the present application also provides a vehicle electronic device, including a processor and a memory, wherein the memory stores computer instructions, and when the computer instructions are executed by the processor, any one of the above-mentioned vehicle rearview mirror defogger method embodiments is implemented, and the same technical effect can be achieved. To avoid repetition, it will not be repeated here.

[0104] An embodiment of the present application also provides a storage medium on which computer instructions are stored. When the computer instructions are executed by a processor, any one of the above-mentioned vehicle rearview mirror defogger method embodiments is implemented and the same technical effect can be achieved. To avoid repetition, they will not be repeated here.

[0105] Each embodiment in the present disclosure is described in a progressive manner, and the same or similar parts between the embodiments can be referred to each other, and each embodiment focuses on the differences from other embodiments. In particular, for the device and equipment embodiments, since they are basically similar to the method embodiments, the description is relatively simple, and the relevant parts can be referred to the partial description of the method embodiments.

[0106] The above describes specific embodiments of the present disclosure. Other embodiments are within the scope of the appended claims. In some cases, the actions or steps recorded in the claims can be performed in an order different from that in the embodiments and still achieve the desired results. In addition, the processes depicted in the drawings do not necessarily require the specific order or continuous order shown to achieve the desired results. In some embodiments, multitasking and parallel processing are also possible or may be advantageous.

[0107] The embodiments of the present disclosure may be systems, methods and / or computer program products. The computer program product may include a computer-readable storage medium carrying computer-readable program instructions for causing a processor to implement various aspects of the embodiments of the present disclosure.

[0108] A computer-readable storage medium may be a tangible device that can hold and store instructions used by an instruction execution device. A computer-readable storage medium may be, for example, but not limited to, an electrical storage device, a magnetic storage device, an optical storage device, an electromagnetic storage device, a semiconductor storage device, or any suitable combination of the foregoing. More specific examples of computer-readable storage media (a non-exhaustive list) include: a portable computer disk, a hard disk, a random access memory (RAM), a read-only memory (ROM), an erasable programmable read-only memory (EPROM or flash memory), a static random access memory (SRAM), a portable compact disk read-only memory (CD-ROM), a digital versatile disk (DVD), a memory stick, a floppy disk, a mechanical encoding device, such as a punch card or a raised structure in a groove on which instructions are stored, and any suitable combination of the foregoing. As used herein, a computer-readable storage medium is not to be interpreted as a transient signal per se, such as a radio wave or other freely propagating electromagnetic wave, an electromagnetic wave propagating through a waveguide or other transmission medium (e.g., a light pulse through a fiber optic cable), or an electrical signal transmitted through a wire.

[0109] The computer-readable program instructions described herein can be downloaded from a computer-readable storage medium to each computing / processing device, or downloaded to an external computer or external storage device via a network, such as the Internet, a local area network, a wide area network, and / or a wireless network. The network can include copper transmission cables, optical fiber transmissions, wireless transmissions, routers, firewalls, switches, gateway computers, and / or edge servers. The network adapter card or network interface in each computing / processing device receives the computer-readable program instructions from the network and forwards the computer-readable program instructions for storage in the computer-readable storage medium in each computing / processing device.

[0110] The computer program instructions for performing the operation of the embodiments of the present disclosure may be assembly instructions, instruction set architecture (ISA) instructions, machine instructions, machine-related instructions, microcode, firmware instructions, state setting data, or source code or object code written in any combination of one or more programming languages, including object-oriented programming languages ​​such as Smalltalk, C++, etc., and conventional procedural programming languages ​​such as "C" language or similar programming languages. Computer-readable program instructions may be executed completely on a user's computer, partially on a user's computer, as an independent software package, partially on a user's computer, partially on a remote computer, or completely on a remote computer or server. In the case of a remote computer, the remote computer may be connected to the user's computer via any type of network including a local area network (LAN) or a wide area network (WAN), or may be connected to an external computer (e.g., using an Internet service provider to connect via the Internet). In some embodiments, an electronic circuit, such as a programmable logic circuit, a field programmable gate array (FPGA), or a programmable logic array (PLA), may be customized by utilizing the state information of a computer-readable program instruction, and the electronic circuit may execute a computer-readable program instruction, thereby realizing various aspects of the embodiments of the present disclosure.

[0111] Various aspects of the embodiments of the present disclosure are described herein with reference to the flowcharts and / or block diagrams of the methods, devices (systems) and computer program products according to the embodiments of the present disclosure. It should be understood that each box in the flowchart and / or block diagram and the combination of each box in the flowchart and / or block diagram can be implemented by computer-readable program instructions.

[0112] These computer-readable program instructions can be provided to a processor of a general-purpose computer, a special-purpose computer, or other programmable data processing device, thereby producing a machine, so that when these instructions are executed by the processor of the computer or other programmable data processing device, a device that implements the functions / actions specified in one or more boxes in the flowchart and / or block diagram is generated. These computer-readable program instructions can also be stored in a computer-readable storage medium, and these instructions cause the computer, programmable data processing device, and / or other equipment to work in a specific manner, so that the computer-readable medium storing the instructions includes a manufactured product, which includes instructions for implementing various aspects of the functions / actions specified in one or more boxes in the flowchart and / or block diagram.

[0113] Computer-readable program instructions may also be loaded onto a computer, other programmable data processing apparatus, or other device so that a series of operating steps are performed on the computer, other programmable data processing apparatus, or other device to produce a computer-implemented process, thereby causing the instructions executed on the computer, other programmable data processing apparatus, or other device to implement the functions / actions specified in one or more boxes in the flowchart and / or block diagram.

[0114] The flowcharts and block diagrams in the accompanying drawings show the possible architecture, functions and operations of the systems, methods and computer program products according to multiple embodiments of the present disclosure. In this regard, each box in the flowchart or block diagram can represent a module, a program segment or a part of an instruction, and a part of a module, a program segment or an instruction contains one or more executable instructions for realizing the specified logical function. In some alternative implementations, the functions marked in the box can also occur in a different order from the order marked in the accompanying drawings. For example, two consecutive boxes can actually be executed substantially in parallel, and they can sometimes be executed in the opposite order, depending on the functions involved. It should also be noted that each box in the block diagram and / or the flowchart, and the combination of the boxes in the block diagram and / or the flowchart can be implemented by a dedicated hardware-based system that performs the specified function or action, or can be implemented by a combination of dedicated hardware and computer instructions. It is well known to those skilled in the art that it is equivalent to implement it by hardware, implement it by software, and implement it by combining software and hardware.

[0115] The embodiments of the present disclosure have been described above, and the above description is exemplary, not exhaustive, and is not limited to the disclosed embodiments. Many modifications and changes will be apparent to those of ordinary skill in the art without departing from the scope of the described embodiments. The selection of terms used herein is intended to best explain the principles of the embodiments, practical applications, or improvements to the technology in the market, or to enable other persons of ordinary skill in the art to understand the embodiments disclosed herein.

Claims

1. A method for defogging a vehicle rearview mirror, characterized in that: A power unit is arranged inside the rearview mirror housing, a window is arranged on the front of the housing, an air outlet is arranged between the lens of the rearview mirror and the housing, and the method comprises: Detecting the first rainfall amount in the scene where the vehicle is located; The power unit is controlled to generate airflow based on the first rainfall, so that the power unit can output the airflow to the defogging area through the air outlet, and the defogging area is the area between the lens and the shell.

2. The method according to claim 1, characterized in that The back side of the housing has an air inlet, and the air inlet is connected to the demisting area through the power unit and the air outlet; the method further includes: Get the speed of the vehicle; The controlling the power unit to generate airflow based on the first rainfall comprises: Whether to control the power unit to generate airflow is determined according to the first rainfall amount and the speed.

3. The method according to claim 2, characterized in that The determining whether to control the power unit to generate airflow according to the first rainfall and the speed includes: When the vehicle speed is less than a first speed threshold and the rainfall is greater than a first rainfall threshold, controlling the power unit to generate airflow; When the vehicle speed is greater than the first speed threshold, determining a second rainfall corresponding to the vehicle speed, wherein the second rainfall represents: when the power unit is not started, the airflow output from the rearview mirror air outlet corresponding to the vehicle speed realizes the maximum rainfall that the rearview mirror defogger function can cope with; When the first rainfall is greater than the second rainfall, the power unit is controlled to generate airflow.

4. The method according to claim 3, characterized in that An air outlet channel is formed between the power unit and the air outlet, a first heating unit is disposed in the air outlet channel, and is used to heat the airflow in the air outlet channel, and the method further includes: determining a third rainfall amount, wherein the third rainfall amount represents: when the power unit is started, the vehicle speed and the airflow output from the rearview mirror air outlet generated by the power unit to achieve a maximum rainfall amount that a rearview mirror defogger function can cope with; When the first rainfall is greater than the third rainfall, the first heating unit is controlled to heat the airflow.

5. The method according to claim 4, characterized in that The rearview mirror is provided with a temperature detection module for detecting the temperature of the first heating unit; The method further comprises: When the temperature of the first heating unit is greater than a first temperature threshold, controlling the first heating unit to stop heating the airflow in the air outlet channel; When the temperature of the first heating unit is lower than a second temperature threshold, the first heating unit is controlled to heat the airflow in the air outlet channel.

6. The method according to claim 1, characterized in that An air outlet channel is formed between the power unit and the air outlet, the first heating unit is disposed in the air outlet channel and is used to heat the airflow in the air outlet channel, and the method further includes: determining a fourth rainfall amount, wherein the fourth rainfall amount represents: when the power unit is started, the airflow generated by the power unit can achieve a maximum rainfall amount that a rearview mirror defogger function can cope with; When the first rainfall is greater than the fourth rainfall, the first heating unit is controlled to heat the airflow.

7. The method according to claim 6, characterized in that The rearview mirror is provided with a temperature detection module for detecting the temperature of the first heating unit; The method further comprises: When the temperature of the first heating unit is greater than a first temperature threshold, controlling the first heating unit to stop heating the airflow in the air outlet channel; When the temperature of the first heating unit is lower than a second temperature threshold, the first heating unit is controlled to heat the airflow in the air outlet channel.

8. A vehicle rearview mirror defogger, characterized in that: The rearview mirror housing is provided with a power unit, the housing has a window on the front, an air outlet is provided between the lens of the rearview mirror and the housing, and the device comprises: A detection module, used for detecting a first rainfall amount in a scene where the vehicle is located; A control module is used to control the power unit to generate airflow based on the first rainfall, so that the power unit can output the airflow to the defogging area through the air outlet, and the defogging area is the area between the lens and the shell.

9. A vehicle electronic device, characterized in that: The method comprises a processor and a memory, wherein the memory stores computer instructions, and when the computer instructions are executed by the processor, the steps of the method according to any one of claims 1 to 7 are implemented.

10. A storage medium, characterized in that: Computer instructions are stored thereon, and when the computer instructions are executed by a processor, the steps of the method according to any one of claims 1 to 7 are implemented.

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