Rearview mirror cleaning methods, cleaning devices, and vehicles

By incorporating an electronically controlled system with detection and cleaning components on the rearview mirror, the system monitors and automatically cleans the mirror in real time, solving the problem of obstructed vision during high-speed driving or in inclement weather, ensuring the cleanliness of the rearview mirror, and improving driving safety and convenience.

CN119975259BActive Publication Date: 2026-04-03FAW JIEFANG AUTOMOTIVE CO
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Patents(China)
Current Assignee / Owner
Filing Date
2025-03-28
Publication Date
2026-04-03

AI Technical Summary

Technical Problem

Rearview mirrors are easily contaminated during high-speed driving or in bad weather, which can obstruct vision. Existing cleaning methods are insufficient to meet the cleaning needs of long-term driving or complex environments, affecting driving safety and convenience.

Method used

By installing detection components (such as photoelectric sensors) on the rearview mirror to monitor the dirt information of the mirror surface in real time, the cleaning components (such as the washing module and the drying module) are controlled to automatically perform cleaning operations when the dirt level exceeds the preset conditions. These operations include spraying cleaning fluid, wiping with a scraper, ultrasonic vibration, and heating to remove ice, until the mirror surface reaches the cleaning standard.

Benefits of technology

It enables automatic cleaning of the rearview mirror in various environments, ensuring that the mirror surface always maintains a clear field of vision, thus improving driving safety and convenience.

✦ Generated by Eureka AI based on patent content.

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Abstract

This application relates to the field of automotive technology, and in particular to a method, device, and vehicle for cleaning a rearview mirror. The method includes acquiring dirt information about the rearview mirror surface; the dirt information includes the total degree of dirt on the mirror surface; when the total degree of dirt meets a preset excessive dirt condition, controlling a cleaning component of the vehicle to clean the mirror surface; repeating the steps of acquiring the degree of dirt and performing the cleaning operation until the degree of dirt no longer meets the preset excessive dirt condition, thereby ensuring that the rearview mirror maintains a clear field of vision in various environments, improving driving safety and convenience.
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Description

Technical Field

[0001] This application relates to the field of automotive technology, and in particular to a method, device and vehicle for cleaning a rearview mirror. Background Technology

[0002] Rearview mirrors are essential components for observing road conditions behind and to the sides while driving, and their cleanliness directly affects the driver's visibility and driving safety. However, in daily use, the surface of rearview mirrors is easily contaminated by dust, mud, raindrops, snowflakes, etc. Especially at high speeds or in inclement weather conditions, dirt accumulation can obstruct vision and affect driving judgment.

[0003] Traditional rearview mirror cleaning methods mainly rely on manual wiping or simple protective measures, which are insufficient for cleaning needs during long drives or in complex environments. Therefore, ensuring that rearview mirrors maintain a clear field of vision in various environments is a key issue for improving driving safety and convenience. Summary of the Invention

[0004] Therefore, it is necessary to provide a method, device, and vehicle for cleaning rearview mirrors to address the aforementioned technical problems.

[0005] Firstly, this application provides a method for cleaning a rearview mirror. The method includes:

[0006] Obtain dirt information on the rearview mirror surface; the dirt information includes the total degree of dirt on the mirror surface;

[0007] When the total level of dirt meets the preset over-dirt condition, the cleaning component of the vehicle is controlled to clean the mirror surface of the rearview mirror.

[0008] Repeat the steps of obtaining the degree of dirt and performing cleaning operations until the degree of dirt no longer meets the preset over-dirt condition.

[0009] In one embodiment, the cleaning component includes a rinsing module, the rinsing module including a mirror rinsing port and a fluid supply line connected to the mirror rinsing port;

[0010] The cleaning device controlling the vehicle to clean the mirror surface of the rearview mirror includes:

[0011] Cleaning fluid is supplied to the mirror rinsing port through the fluid supply pipeline;

[0012] Cleaning fluid is sprayed onto the mirror through the mirror rinsing port to rinse the mirror surface.

[0013] In one embodiment, the cleaning component further includes a drying module, which includes a blowing unit and / or a heating unit;

[0014] After the cleaning solution is sprayed onto the mirror through the mirror rinsing port, the process further includes:

[0015] The mirror surface is dried using the drying module.

[0016] In one embodiment, the dirt information also includes dirt distribution information on the mirror surface;

[0017] The cleaning device for controlling the vehicle to clean the mirror surface of the rearview mirror further includes:

[0018] Adjust the spray angle of the mirror rinsing nozzle based on the dirt distribution information of the mirror surface.

[0019] In one embodiment, a detection element is provided on the rearview mirror, the detection element including a photoelectric sensor;

[0020] The process of obtaining information about dirt on the rearview mirror surface includes:

[0021] The total reflectivity of the mirror surface is obtained through the photoelectric sensor;

[0022] The total degree of dirtiness of the mirror surface is determined based on the total reflectivity of the mirror surface.

[0023] In one embodiment, the method further includes:

[0024] In response to a cleaning initiation operation for the rearview mirror, a cleaning initiation command is received;

[0025] According to the cleaning start command, the cleaning component of the vehicle is controlled to perform a cleaning operation on the mirror surface of the rearview mirror.

[0026] Secondly, this application also provides a rearview mirror cleaning device. The device includes:

[0027] Cleaning parts;

[0028] The controller, connected to the cleaning component, is used for:

[0029] Obtain dirt information on the rearview mirror surface; the dirt information includes the total degree of dirt on the mirror surface;

[0030] When the total level of dirt meets the preset over-dirt condition, the cleaning component of the vehicle is controlled to clean the mirror surface of the rearview mirror.

[0031] Repeat the steps of obtaining the degree of dirt and performing cleaning operations until the degree of dirt no longer meets the preset over-dirt condition.

[0032] In one embodiment, the cleaning component includes a rinsing module, the rinsing module including a mirror rinsing port and a fluid supply line connected to the mirror rinsing port;

[0033] The fluid supply line is used to deliver cleaning fluid to the mirror rinsing port;

[0034] The mirror rinsing port is used to spray cleaning fluid onto the mirror so that the cleaning fluid rinses the mirror.

[0035] In one embodiment, the device further includes a detection element connected to the controller, the detection element being disposed on the rearview mirror;

[0036] The detection device includes a photoelectric sensor, which is used to acquire the total reflectivity of the mirror surface and send the total reflectivity of the mirror surface to the controller.

[0037] Thirdly, this application also provides a vehicle. The vehicle includes a memory and a processor, the memory storing a computer program that, when executed by the processor, implements the steps of the rearview mirror cleaning method provided in the first aspect of this application.

[0038] The aforementioned rearview mirror cleaning method, cleaning device, and vehicle acquire dirt information of the rearview mirror surface; the dirt information includes the total dirt level of the mirror surface; when the total dirt level meets a preset over-dirt condition, the vehicle's cleaning component is controlled to clean the rearview mirror surface; the steps of acquiring the dirt level and performing the cleaning operation are repeated until the dirt level no longer meets the preset over-dirt condition. This application acquires the dirt level of the mirror surface, and when the total dirt level meets the preset over-dirt condition, controls the cleaning component to clean the mirror surface, then repeats the acquisition of the dirt level until the preset over-dirt condition is no longer met, thus completing the cleaning. This application uses an electronic control system with sensing and recognition capabilities. When it detects that the mirror surface dirt exceeds a set standard, it will automatically clean, quickly removing the dirt, and can continuously cycle the cleaning until the rearview mirror reaches the set cleanliness standard, ensuring that the rearview mirror surface remains clean. Attached Figure Description

[0039] Figure 1 This is a structural block diagram of a rearview mirror cleaning device in one embodiment;

[0040] Figure 2 This is a flowchart illustrating a rearview mirror cleaning method in one embodiment;

[0041] Figure 3 This is a diagram of the complete vehicle assembly in one embodiment;

[0042] Figure 4This is a structural block diagram of a rearview mirror in one embodiment. Detailed Implementation

[0043] To facilitate understanding of the present invention, a more complete description will be given below with reference to the accompanying drawings. Preferred embodiments of the invention are shown in the drawings. However, the invention can be implemented in many different forms and is not limited to the embodiments described herein. Rather, these embodiments are provided to provide a thorough and complete understanding of the disclosure of the invention.

[0044] It should be noted that when a component is said to be "fixed to" another component, it can be directly attached to the other component or there may be an intervening component. When a component is said to be "connected to" another component, it can be directly connected to the other component or there may be an intervening component. The terms "vertical," "horizontal," "left," "right," and similar expressions used in this document are for illustrative purposes only.

[0045] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this invention pertains. The terminology used herein in the specification of this invention is for the purpose of describing particular embodiments only and is not intended to be limiting of the invention. The term "and / or" as used herein includes any and all combinations of one or more of the associated listed items.

[0046] Rearview mirrors are crucial components for observing road conditions behind and to the sides while driving, and their cleanliness directly affects the driver's visibility and driving safety. However, in daily use, the surface of rearview mirrors is easily contaminated by dust, mud, raindrops, snow, and other pollutants. Especially at high speeds or in inclement weather conditions, accumulated dirt can obstruct vision and impair driving judgment. Traditional rearview mirror cleaning methods mainly rely on manual wiping or simple protective measures, which are insufficient for the cleaning needs of prolonged driving or complex environments. Therefore, ensuring that rearview mirrors maintain a clear field of vision in various environments is a key issue in improving driving safety and convenience.

[0047] Specifically, in the application field of buses, the rearview mirrors are installed relatively high, with their lowest edge typically about 1800mm from the ground, making cleaning and maintenance quite difficult. Especially when driving on highways, the high speeds and difficulty in stopping temporarily make it difficult to remove contaminants such as dust, rainwater, and snow from the rearview mirror surface in a timely manner, affecting the driver's visibility and thus reducing driving safety.

[0048] To ensure a clear field of vision in the rearview mirror, embodiments of this application provide a rearview mirror cleaning device, such as... Figure 1As shown, the device may include a controller 1, a detection element and a cleaning element mounted on the rearview mirror. The controller 1 obtains information about the dirt on the rearview mirror surface through the detection element, and when the dirt information meets a preset excessive dirt condition, the controller controls the cleaning element to clean the rearview mirror.

[0049] In one embodiment, such as Figure 2 As shown, a method for cleaning a rearview mirror is provided, which is applied to... Figure 1 Taking controller 1 as an example, the explanation includes the following steps:

[0050] Step 202: Obtain information on the dirt on the rearview mirror surface.

[0051] The dirt information includes the total dirt level of the mirror surface.

[0052] Step 204: When the total level of dirt meets the preset over-dirt condition, control the vehicle's cleaning component to clean the mirror surface of the rearview mirror.

[0053] Step 206: Repeat the steps of obtaining the degree of dirt and performing cleaning operations until the degree of dirt does not meet the preset over-dirt condition.

[0054] For example, the vehicle monitors the mirror's condition in real time using sensors (such as optical cameras, infrared sensors, laser sensors, or environmental monitoring sensors) installed around the rearview mirror, acquiring dirt information and comprehensively assessing the coverage and concentration of contaminants such as dirt, dust, rainwater, and snowflakes on the mirror surface. By analyzing the total dirt level, it determines whether a preset excessive dirt condition is met. The excessive dirt condition can be set according to different scenarios, such as: visibility threshold: when the mirror's light transmittance or reflectivity is lower than a set threshold (e.g., 70%), cleaning is triggered; pollution accumulation time: when pollution persists for a certain period without being cleaned, the cleaning operation is automatically initiated; environmental condition linkage: in rainy, snowy, or dusty weather, the trigger threshold is lowered to increase the cleaning frequency. When the excessive dirt condition is met, the system controls the cleaning components to clean the rearview mirror surface.

[0055] The cleaning methods may include one or more of the following: Spray cleaning: spraying cleaning liquid or high-pressure water mist onto the rearview mirror surface through nozzles to remove adhering dust, mud, rainwater and other contaminants; wipe with a scraper: using a micro-scraper device to mimic the working principle of a windshield wiper to scrape away water droplets and dirt from the mirror surface; ultrasonic vibration: integrating an ultrasonic generator into the mirror surface to remove dirt from the mirror surface through high-frequency vibration; nano-coating self-cleaning: combining a hydrophobic and oleophobic coating to make it difficult for dirt to adhere, and combining with other cleaning methods to improve the cleaning effect; heating to defrost: melting snow and frost in low-temperature environments using a mirror heating device to prevent obstruction of vision.

[0056] After completing a cleaning operation, controller 1 re-obtains the level of dirt on the rearview mirror and determines whether it still meets the preset excessive dirt condition. If the mirror surface still has a lot of dirt, the cleaning operation continues until the level of dirt is reduced to an acceptable range. To improve cleaning efficiency, the system can set a maximum number of cleaning cycles or adjust the cleaning method based on the cleaning effect.

[0057] The above-described rearview mirror cleaning method involves acquiring dirt information about the rearview mirror surface; the dirt information includes the total degree of dirt on the mirror surface; when the total degree of dirt meets a preset excessive dirt condition, controlling the vehicle's cleaning component to clean the rearview mirror surface; repeating the steps of acquiring the dirt degree and performing the cleaning operation until the dirt degree no longer meets the preset excessive dirt condition. This embodiment of the application acquires the dirt degree of the mirror surface, and when the total dirt degree meets the preset excessive dirt condition, controls the cleaning component to clean the mirror surface, then repeats the acquisition of the dirt degree until the preset excessive dirt condition is no longer met, thus completing the cleaning. This embodiment of the application uses an electronic control system with sensing and recognition capabilities. When it detects that the mirror surface dirt exceeds a set standard, it will automatically clean, quickly removing the dirt, and can continuously cycle the cleaning until the rearview mirror reaches the set cleanliness standard, ensuring that the rearview mirror surface remains clean.

[0058] In one embodiment, a detection element is provided on the rearview mirror, the detection element including a photoelectric sensor. Obtaining information on the dirt level of the rearview mirror surface includes: acquiring the total reflectivity of the mirror surface using the photoelectric sensor; and determining the total dirt level of the mirror surface based on the total reflectivity.

[0059] Among them, reference Figure 4 The photoelectric sensor can be a reflective photoelectric sensor 8, which is installed inside the mirror cavity of the rearview mirror 2 and is connected to the controller 1.

[0060] For example, one or more photoelectric sensors are installed in a specific area of ​​the rearview mirror (such as the center, edge, or cavity of the mirror surface). The photoelectric sensors emit a light beam of a specific wavelength (such as visible light, infrared light, or laser light) and measure the intensity of the reflected light. The photoelectric sensors send the measured light intensity signal to a controller, which calculates the intensity of the reflected light to obtain the total reflectivity of the mirror surface, thereby determining the total dirt level of the mirror surface. If the total dirt level of the mirror surface is greater than or equal to a preset dirt threshold, the total dirt level is determined to meet a preset over-dirt condition; if the total dirt level of the mirror surface is less than the preset dirt threshold, the total dirt level is determined to not meet the preset over-dirt condition.

[0061] This embodiment incorporates a detection device on the rearview mirror to monitor its cleanliness in real time and determine the degree of dirtiness based on the mirror's reflectivity. The detection device includes a photoelectric sensor, which utilizes photoelectric detection technology to accurately analyze the mirror's contamination status, thereby achieving automatic cleaning control.

[0062] In one embodiment, the cleaning component includes a rinsing module, the rinsing module including a mirror rinsing port and a fluid supply line connected to the mirror rinsing port; the cleaning component controlling the vehicle to perform a cleaning operation on the mirror surface of the rearview mirror includes: delivering cleaning fluid to the mirror rinsing port through the fluid supply line; and spraying cleaning fluid onto the mirror surface through the mirror rinsing port to rinse the mirror surface with the cleaning fluid.

[0063] The rinsing module may further include a suction device, which is installed inside the rearview mirror cavity. One end of the suction device is connected to the vehicle's washer via a fluid supply line, and the other end is connected to the mirror rinsing port via the same fluid supply line. When the controller controls the vehicle's cleaning components to clean the rearview mirror, the controller first activates the suction device to draw cleaning fluid from the vehicle's washer, and then sprays it out through the fluid supply line from the mirror rinsing port to rinse the mirror surface.

[0064] In one embodiment, the cleaning component further includes a drying module, which includes a blowing unit and / or a heating unit; after the cleaning liquid is sprayed onto the mirror through the mirror rinsing port, the component further includes drying the mirror through the drying module.

[0065] In one embodiment, the dirt information further includes dirt distribution information on the mirror surface; the cleaning device for controlling the vehicle to clean the mirror surface of the rearview mirror further includes: adjusting the spray angle of the mirror rinsing nozzle according to the dirt distribution information on the mirror surface.

[0066] For example, an array of photoelectric sensors is used to collect reflection intensity data of various regions of the mirror surface; the controller divides the mirror surface into multiple detection grids and calculates the local dirt coefficient of each grid based on the reflection intensity data of each region of the mirror surface; a dirt distribution heat map is generated based on the gradient change of the dirt coefficient between adjacent grids. A dirt coordinate mapping model is established based on the dirt distribution heat map, and the dirt distribution information is converted into three-dimensional rinsing coordinates. An electric universal joint is set on the mirror rinsing port, and the controller drives the electric universal joint to perform at least one of the following adjustments: horizontal deflection angle θ (0°≤θ≤180°), vertical pitch angle φ (-30°≤φ≤30°), and jet focusing distance L (50mm≤L≤150mm).

[0067] In one embodiment, the method further includes: receiving a cleaning start command in response to a cleaning start operation for the rearview mirror; and controlling a cleaning component of the vehicle to perform a cleaning operation on the mirror surface of the rearview mirror according to the cleaning start command.

[0068] For example, a first control switch is provided on the vehicle's dashboard. This first control switch is connected to a controller and is used to instruct manual cleaning of the rearview mirror. Upon receiving a start command, the first control switch sends a single or multiple cleaning instruction to the controller. The controller receives this instruction and, based on it, controls the vehicle's cleaning components to perform single or multiple cleaning operations on the rearview mirror. For instance, in blizzards or other adverse conditions, the driver can press the first control switch, and the controller will spray washing fluid to clean the mirror surface and then automatically dry the mirror with electric heating.

[0069] In other embodiments, a second control switch is provided on the vehicle dashboard. The second control switch is connected to the controller and is used to indicate the automatic cleaning operation for the rearview mirror. When the second control switch receives a start operation, it sends a cleaning start command to the controller regarding the automatic cleaning. The controller receives the cleaning start command and, according to the cleaning start command, executes the steps of repeatedly obtaining the degree of dirt and performing the cleaning operation until the degree of dirt no longer meets the preset over-dirt condition.

[0070] In this embodiment, the switching between manual cleaning and automatic cleaning can be achieved through the first control switch and the second control switch.

[0071] In one embodiment, please refer to Figure 3 and Figure 4 The controller 1 is the brain of the entire system, used to determine whether the automatic cleaning mode needs to be activated. The control switch, located on the dashboard, is for manual cleaning. A reflective photoelectric sensor 8 is installed on the mirror surface of the rearview mirror 2. It detects the degree of dirt on the mirror surface through light refraction, and activates the automatic circulating cleaning mode when a preset value is reached. The water pump 3 is located inside the housing of the rearview mirror 2, with one inlet and one outlet, used to draw detergent to clean the mirror surface. The inlet pipe 4 connects to the washer 6 at one end and the water pump 3 at the other. The rain hose 5 is connected to the water pump 3's outlet. The rain hose 5 is located on the upper edge of the rearview mirror 2 lens and is made of acrylic material. This material has good toughness and is not easily worn; it has high surface hardness and is not easily scratched; it has good light transmission, does not obstruct vision, and is retractable, effectively preventing raindrops from falling on the mirror surface in rainy weather. It has a pipe at a 10-degree angle to the vertical direction, which can evenly atomize and spray detergent over a large area to clean the mirror surface. The battery 7 and the washer 6 are shared with the whole vehicle and are located inside the compartment.

[0072] When the reflective photoelectric sensor 8 detects that the mirror surface is uneven and has a lot of dirt and dust, reaching a preset value, the system enters the automatic cycle cleaning mode. The controller 1 starts the water pump 3, and the washing liquid drawn from the washer 6 flows down the mirror surface through the rain pipe 5 to wash away the dirt. The controller 1 activates the rearview mirror lens electric heating to dry the lens. The reflective photoelectric sensor 8 detects the mirror surface reflectivity; if it does not reach the preset value, step 1 is repeated. When the reflective photoelectric sensor 8 detects that the mirror surface is smooth and clean, the automatic cycle mode stops working. In case of blizzards or severe conditions, the driver can press the control switch to spray washing liquid to clean the mirror surface; after cleaning, the lens is automatically dried by electric heating.

[0073] The system can automatically cycle through the above-mentioned rearview mirror cleaning method to keep the rearview mirror clean.

[0074] It should be understood that although the steps in the flowcharts of the embodiments described above are shown sequentially according to the arrows, these steps are not necessarily executed in the order indicated by the arrows. Unless explicitly stated herein, there is no strict order restriction on the execution of these steps, and they can be executed in other orders. Moreover, at least some steps in the flowcharts of the embodiments described above may include multiple steps or multiple stages. These steps or stages are not necessarily completed at the same time, but can be executed at different times. The execution order of these steps or stages is not necessarily sequential, but can be performed alternately or in turn with other steps or at least some of the steps or stages of other steps.

[0075] Based on the same inventive concept, this application also provides a rearview mirror cleaning device. The solution provided by this device is similar to the solution described in the above method. Therefore, the specific limitations of one or more rearview mirror cleaning device embodiments provided below can be found in the limitations of the rearview mirror cleaning method above, and will not be repeated here.

[0076] In one embodiment, a rearview mirror cleaning device is provided, including a cleaning component and a controller connected to the cleaning component.

[0077] The controller is used to: acquire dirt information of the rearview mirror surface; the dirt information includes the total dirt level of the mirror surface; when the total dirt level meets a preset over-dirt condition, control the vehicle's cleaning component to clean the rearview mirror surface; repeat the steps of acquiring dirt level and performing cleaning operation until the dirt level no longer meets the preset over-dirt condition.

[0078] In one embodiment, the cleaning component includes a rinsing module, which includes a mirror rinsing port and a fluid supply line connected to the mirror rinsing port; the fluid supply line is used to deliver cleaning fluid to the mirror rinsing port; the mirror rinsing port is used to spray cleaning fluid onto the mirror surface so that the cleaning fluid rinses the mirror surface.

[0079] In one embodiment, the rearview mirror cleaning device further includes a detection element connected to the controller, the detection element being disposed on the rearview mirror; the detection element includes a photoelectric sensor, the photoelectric sensor being used to acquire the total reflectivity of the mirror surface and send the total reflectivity of the mirror surface to the controller.

[0080] In one embodiment, a vehicle is provided, including a computer program that, when executed by a processor, implements the steps in the above method embodiments.

[0081] It should be noted that the user information (including but not limited to user device information, user personal information, etc.) and data (including but not limited to data used for analysis, data stored, data displayed, etc.) involved in this application are all information and data authorized by the user or fully authorized by all parties, and the collection, use and processing of related data must comply with the relevant laws, regulations and standards of the relevant countries and regions.

[0082] Those skilled in the art will understand that all or part of the processes in the above embodiments can be implemented by a computer program instructing related hardware. The computer program can be stored in a non-volatile computer-readable storage medium. When executed, the computer program can include the processes of the embodiments described above. Any references to memory, databases, or other media used in the embodiments provided in this application can include at least one of non-volatile and volatile memory. Non-volatile memory can include read-only memory (ROM), magnetic tape, floppy disk, flash memory, optical memory, high-density embedded non-volatile memory, resistive random access memory (ReRAM), magnetic random access memory (MRAM), ferroelectric random access memory (FRAM), phase change memory (PCM), graphene memory, etc. Volatile memory can include random access memory (RAM) or external cache memory, etc. By way of illustration and not limitation, RAM can take many forms, such as Static Random Access Memory (SRAM) or Dynamic Random Access Memory (DRAM). The databases involved in the embodiments provided in this application may include at least one type of relational database and non-relational database. Non-relational databases may include, but are not limited to, blockchain-based distributed databases. The processors involved in the embodiments provided in this application may be general-purpose processors, central processing units, graphics processing units, digital signal processors, programmable logic devices, quantum computing-based data processing logic devices, etc., and are not limited to these.

[0083] The technical features of the above embodiments can be combined in any way. For the sake of brevity, not all possible combinations of the technical features in the above embodiments are described. However, as long as there is no contradiction in the combination of these technical features, they should be considered to be within the scope of this specification.

[0084] The embodiments described above are merely illustrative of several implementation methods of this application, and while the descriptions are specific and detailed, they should not be construed as limiting the scope of this patent application. It should be noted that those skilled in the art can make various modifications and improvements without departing from the concept of this application, and these all fall within the protection scope of this application. Therefore, the protection scope of this application should be determined by the appended claims.

Claims

1. A method for cleaning a rearview mirror, applied to a vehicle, characterized in that, The method includes: Obtain dirt information on the rearview mirror surface; the dirt information includes the total degree of dirt on the mirror surface; When the total level of dirt meets the preset over-dirt condition, the cleaning component of the vehicle is controlled to clean the mirror surface of the rearview mirror; the cleaning component includes a rinsing module, and the rinsing module includes a mirror rinsing port; Repeat the steps of obtaining the degree of dirt and performing cleaning operations until the degree of dirt no longer meets the preset over-dirt condition; The dirt information also includes dirt distribution information on the mirror surface, and the cleaning device controlling the vehicle to clean the mirror surface of the rearview mirror further includes: The reflectance intensity data of each area of ​​the mirror surface is collected by an array of photoelectric sensors. The mirror surface is divided into multiple detection grids, and the local dirt coefficient of each detection grid is calculated based on the reflectance intensity data of each region of the mirror surface. A heatmap of dirt distribution is generated based on the gradient change of the local dirt coefficient of adjacent detection grids. A dirt coordinate mapping model is established based on the dirt distribution heat map to convert the dirt distribution information into three-dimensional flushing coordinates; Based on the three-dimensional rinsing coordinates, the electric universal joint installed on the mirror rinsing port is driven to perform at least one adjustment of the horizontal deflection angle, the vertical pitch angle, and the jet focusing distance.

2. The method according to claim 1, characterized in that, The rinsing module also includes a fluid supply pipeline connected to the mirror rinsing port; The cleaning device controlling the vehicle to clean the mirror surface of the rearview mirror includes: Cleaning fluid is supplied to the mirror rinsing port through the fluid supply pipeline; Cleaning fluid is sprayed onto the mirror through the mirror rinsing port to rinse the mirror surface.

3. The method according to claim 2, characterized in that, The cleaning component also includes a drying module, which includes a blowing unit and / or a heating unit; After the cleaning solution is sprayed onto the mirror through the mirror rinsing port, the process further includes: The mirror surface is dried using the drying module.

4. The method according to claim 1, characterized in that, The rearview mirror is equipped with a detection element, which includes a photoelectric sensor. The process of obtaining information about dirt on the rearview mirror surface includes: The total reflectivity of the mirror surface is obtained through the photoelectric sensor; The total degree of dirtiness of the mirror surface is determined based on the total reflectivity of the mirror surface.

5. The method according to any one of claims 1 to 4, characterized in that, The method further includes: In response to a cleaning initiation operation for the rearview mirror, a cleaning initiation command is received; According to the cleaning start command, the cleaning component of the vehicle is controlled to perform a cleaning operation on the mirror surface of the rearview mirror.

6. A rearview mirror cleaning device, characterized in that, include: Cleaning parts; The cleaning component includes a rinsing module, and the rinsing module includes a mirror-finish rinsing port; The controller, connected to the cleaning component, is used for: Obtain dirt information on the rearview mirror surface; the dirt information includes the total degree of dirt on the mirror surface; When the total level of dirt meets the preset over-dirt condition, the vehicle's cleaning components are controlled to clean the mirror surface of the rearview mirror. Repeat the steps of obtaining the degree of dirt and performing cleaning operations until the degree of dirt no longer meets the preset over-dirt condition; The dirt information also includes dirt distribution information on the mirror surface, and the controller is further configured to: The reflectance intensity data of each area of ​​the mirror surface is collected by an array of photoelectric sensors. The mirror surface is divided into multiple detection grids, and the local dirt coefficient of each detection grid is calculated based on the reflectance intensity data of each region of the mirror surface. A heatmap of dirt distribution is generated based on the gradient change of the local dirt coefficient of adjacent detection grids. A dirt coordinate mapping model is established based on the dirt distribution heat map to convert the dirt distribution information into three-dimensional flushing coordinates; Based on the three-dimensional rinsing coordinates, the electric universal joint installed on the mirror rinsing port is driven to perform at least one adjustment of the horizontal deflection angle, the vertical pitch angle, and the jet focusing distance.

7. The cleaning device according to claim 6, characterized in that, The cleaning component includes a rinsing module, which includes a mirror rinsing port and a fluid supply pipeline connected to the mirror rinsing port. The fluid supply line is used to deliver cleaning fluid to the mirror rinsing port; The mirror rinsing port is used to spray cleaning fluid onto the mirror so that the cleaning fluid rinses the mirror.

8. The cleaning device according to claim 6, characterized in that, It also includes a detection element connected to the controller, the detection element being disposed on the rearview mirror; The detection device includes a photoelectric sensor, which is used to acquire the total reflectivity of the mirror surface and send the total reflectivity of the mirror surface to the controller.

9. A vehicle, characterized in that, It includes a memory and a processor, the memory being used to store a computer program, which, when executed by the processor, implements the steps of the method according to any one of claims 1 to 5.

Citation Information

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