A vehicle automatic sunshade method, system and vehicle

Abstract

This disclosure relates to a method, system, and vehicle for automatic sun shading. The automatic sun shading method includes: acquiring the brightness of the eye area of ​​a front passenger; and automatically adjusting the transparency of an electrochromic film based on the brightness of the eye area. Multiple electrochromic films are disposed on the windshield of the vehicle, with the multiple electrochromic films regionally positioned at the top area of ​​the windshield. This disclosure eliminates the need for manual adjustment of the sun visor position, achieving automatic sun shading and avoiding the safety hazards and inconvenience of manually adjusting physical sun visors. Furthermore, this solution can replace physical sun visors, enhancing the simplicity, aesthetics, and technological feel of the front headliner interior.

Description

Technical Field

[0001] This disclosure relates to the field of vehicle technology, and in particular to a method, system and device for automatic sunshade of a vehicle. Background Technology

[0002] Vehicles have become an important means of transportation for people in today's society. As users' requirements for vehicles increase, some problems have gradually emerged during vehicle use. For example, when the external environment of the vehicle is in strong sunlight, the sunlight will shine into the eyes of the people in the front of the driver's cabin, affecting driving safety and passenger comfort.

[0003] Most vehicles nowadays have sun visors above the driver's and passenger's seats, and these visors are generally manual physical panels. When sun protection is needed, the visor position is manually adjusted. Since drivers frequently need to manually adjust the visor while the vehicle is in motion, this can easily cause temporary obstruction of vision and require them to take their hands off the steering wheel, posing a safety hazard and being inconvenient to use. Summary of the Invention

[0004] To address the aforementioned technical issues, this disclosure provides a method, system, and device for automatic sunshade in vehicles. This eliminates the need for manual adjustment of the sun visor's position, achieving automatic sunshade and avoiding the safety hazards and inconvenience associated with manually adjusting physical sun visors. Furthermore, this solution can replace physical sun visors, enhancing the simplicity, aesthetics, and technological feel of the front headliner interior.

[0005] In a first aspect, this disclosure provides a method for automatic sunshade of a vehicle, comprising:

[0006] Obtain the brightness of the eye area of ​​the front passenger in the vehicle;

[0007] The transparency of the electrochromic film is automatically adjusted according to the brightness of the eye area; wherein, multiple electrochromic films are provided on the windshield of the vehicle, and the multiple electrochromic films are arranged in sections on the top area of ​​the windshield.

[0008] In some embodiments, obtaining the brightness of the eye area of ​​the front passenger in the vehicle includes:

[0009] Acquire images of the eye region of the front-seat passengers in the vehicle;

[0010] The brightness of the eye area of ​​the front passenger in the vehicle is obtained from the image of the eye area of ​​the front passenger in the vehicle.

[0011] In some embodiments, adjusting the transparency of the electrochromic film according to the brightness of the eye region includes:

[0012] When the brightness of the eye area is less than a set brightness threshold, the electrochromic film is adjusted to a transparent state.

[0013] When the brightness of the eye area is greater than or equal to the set brightness threshold, the electrochromic film is adjusted to a non-transparent state.

[0014] In some embodiments, adjusting the electrochromic film to a non-transparent state includes:

[0015] The transparency of the electrochromic film is gradually reduced until the brightness of the eye area is less than the set brightness threshold.

[0016] In some embodiments, adjusting the electrochromic film to a non-transparent state includes:

[0017] The rate at which the transparency of the electrochromic film decreases is adjusted according to the brightness of the eye region.

[0018] In some embodiments, it also includes:

[0019] Obtain the brightness of the mouth area of ​​the front passenger in the vehicle;

[0020] After adjusting the electrochromic film to a non-transparent state, the vehicle automatic sunshade method further includes:

[0021] The transparency of the electrochromic film is adjusted according to the brightness of the eye area and the brightness of the mouth area;

[0022] When the difference between the brightness of the eye area and the brightness of the mouth area is less than a set difference, the electrochromic film is automatically adjusted to return to a transparent state.

[0023] Secondly, this disclosure also provides an automatic sunshade system for vehicles, comprising:

[0024] A detection device used to detect the brightness of the eye area of ​​front-seat passengers in a vehicle;

[0025] An adjustment device, communicatively connected to the detection device, is used to perform the vehicle automatic sunshade method as described in any embodiment of the first aspect.

[0026] In some embodiments, the electrochromic film is a strip-shaped film that extends horizontally, and a plurality of the electrochromic films are arranged vertically in the top region of the windshield.

[0027] In some embodiments, the adjustment device includes a plurality of adjustment terminals, which are electrically connected to a plurality of electrochromic films via electrode cables, the electrode cables being routed along the edge of the windshield.

[0028] Thirdly, this disclosure also provides a vehicle including the automatic sunshade system for vehicles as described in the second aspect.

[0029] This disclosure obtains the brightness of the eye area of ​​the front passenger in a vehicle and automatically adjusts the transparency of an electrochromic film based on the brightness of the eye area. Multiple electrochromic films are installed on the windshield of the vehicle, with these films positioned in sections at the top of the windshield. Therefore, this embodiment can automatically detect whether the front passenger is glared by sunlight. When glare occurs, the transparency of the electrochromic film at the top of the windshield can be automatically reduced, thus achieving automatic sun shading. This avoids the safety hazards and inconvenience of manually adjusting physical sun visors. Furthermore, this solution can replace physical sun visors, improving the simplicity, aesthetics, and technological feel of the front headliner interior. Attached Figure Description

[0030] The accompanying drawings, which are incorporated in and form a part of this specification, illustrate embodiments consistent with this disclosure and, together with the description, serve to explain the principles of this disclosure.

[0031] To more clearly illustrate the technical solutions in the embodiments of this disclosure or the prior art, the accompanying drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, for those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0032] Figure 1 A flowchart of an automatic sunshade method for a vehicle provided in this disclosure embodiment;

[0033] Figure 2 This is a schematic diagram of the installation structure of an electrochromic film in a windshield according to an embodiment of the present disclosure;

[0034] Figure 3 A schematic diagram of eye illumination for a front-seat passenger in a vehicle, provided as an embodiment of this disclosure;

[0035] Figure 4 This is a schematic diagram of the structure of an automatic sunshade system for vehicles provided in an embodiment of this disclosure;

[0036] Figure 5 This is a schematic diagram of the structure of a vehicle-mounted system provided in an embodiment of the present invention. Detailed Implementation

[0037] To better understand the above-mentioned objectives, features, and advantages of this disclosure, the solutions disclosed herein will be further described below. It should be noted that, unless otherwise specified, the embodiments and features described herein can be combined with each other.

[0038] Numerous specific details are set forth in the following description in order to provide a full understanding of this disclosure, but this disclosure may also be implemented in other ways different from those described herein; obviously, the embodiments in the specification are only some, and not all, of the embodiments of this disclosure.

[0039] Currently, sun visors in vehicles are generally located above the driver's seat in the front cabin. When sun protection is not needed, the sun visor is folded up to avoid obstructing the view. When the sunlight is glaring and sun protection is needed, the sun visor is manually adjusted downwards until it is in a suitable position where the sunlight is no longer shining directly into the eyes. However, manually adjusting the angle takes a lot of time to determine the optimal angle, and since the driver is often in motion, this can easily lead to obstructed vision and the driver having to take their hands off the steering wheel, which affects driving safety and is inconvenient.

[0040] In view of the shortcomings of the prior art described above, this disclosure provides a method for automatic sunshade of vehicles. Figure 1 This is a flowchart illustrating an automatic sunshade method for a vehicle, provided as an embodiment of this disclosure. This method can be executed based on an automatic sunshade system for the vehicle, which can be implemented using software and / or hardware, such as... Figure 1 As shown, the vehicle automatic sunshade method includes S110-S120:

[0041] S110: Obtain the brightness of the eye area of ​​the front passenger in the vehicle.

[0042] Specifically, the front-seat passengers of a vehicle include the driver and / or the front passenger. When the light from the external environment shines through the windshield of the vehicle onto the front-seat passengers, it will change the brightness of the eye area of ​​the front-seat passengers. By obtaining the brightness of the eye area of ​​the front-seat passengers, it is possible to determine the impact of the light from the external environment on the vision of the front-seat passengers.

[0043] In some embodiments, obtaining the brightness of the eye region of a front-seat passenger includes: obtaining an image of the eye region of the front-seat passenger, and obtaining the brightness of the eye region of the front-seat passenger based on the image of the eye region of the front-seat passenger.

[0044] Specifically, images of the eye region of the front-seat passengers are acquired, and image recognition is performed on these images to obtain the brightness characteristics of the eye region of the front-seat passengers.

[0045] For example, the device for detecting the eye image region can be an image acquisition device. For instance, a camera can be installed inside the vehicle, or an existing fatigue driving detection camera inside the vehicle can be used to acquire facial images of the front-seat passengers and extract the eye region images. The brightness of the eye region—that is, the brightness of the corresponding eye region in the image—is analyzed to obtain the brightness of the eye region of the front-seat passengers at different times. This allows for a clear understanding of whether the current lighting affects the vision of the front-seat passengers and the intensity of the light. Alternatively, the image acquisition device can transmit the acquired image information to a higher-level image processing controller for processing; this embodiment of the present disclosure does not limit this approach.

[0046] S120: Automatically adjusts the transparency of the electrochromic film according to the brightness of the eye area; wherein, multiple electrochromic films are provided on the windshield of the vehicle, and the multiple electrochromic films are arranged in sections on the top area of ​​the windshield.

[0047] Figure 2 This is a schematic diagram illustrating the installation structure of an electrochromic film in a windshield according to an embodiment of this disclosure. Figure 2 As shown, a plurality of electrochromic films 32 are provided on the windshield 31 of the vehicle, and the plurality of electrochromic films 32 are disposed in sections in the top region of the windshield 31. For example, the electrochromic films 32 can be provided as strip-shaped films, the electrochromic films 32 extending in the horizontal direction, and the plurality of electrochromic films 32 arranged in the vertical direction in the top region of the windshield 31.

[0048] Specifically, the electrochromic film 32 is an electrochromic material film sandwiched in the windshield 31, i.e., photochromic glass. The film integrates positive and negative electrodes. For example, when no voltage is applied to the electrodes, the electrochromic film 32 presents a frosted effect with low light transmittance. When a certain DC voltage is applied to the electrodes, the electric field inside the electrochromic film 32 generates an electrochemical oxidation-reduction reaction, which changes the light transmission characteristics, thereby causing changes in the color and light transmittance of the electrochromic film 32. The electrochromic film has good cyclic reversibility, and its transparency can be adjusted multiple times and in multiple levels. Its transparency can be changed under the control of the electric field.

[0049] Figure 3 This is a schematic diagram of the light illumination on the eyes of a front-seat passenger in a vehicle, provided as an embodiment of this disclosure. Figure 3 In the diagram, A represents external light. Figure 3 The image on the left shows the facial lighting conditions for front-seat passengers in a vehicle without any sunshade. In this case, the front-seat passengers would experience glare from the bright light. Figure 3In the attached diagram on the right, when it is determined that the brightness in the eye area of ​​the front passenger is too high, the transparency of a portion of the electrochromic film 32 can be automatically reduced to block the light shining into the eye area of ​​the front passenger. Therefore, this embodiment can automatically detect whether the front passenger is glared by sunlight. When glare occurs, the transparency of the electrochromic film in the top area of ​​the windshield can be automatically reduced, thus achieving automatic sunshade. This avoids the safety hazards and inconvenience of manually adjusting physical sun visors. Furthermore, this solution can replace physical sun visors, enhancing the simplicity, aesthetics, and technological feel of the front headliner interior.

[0050] In some embodiments, adjusting the transparency of the electrochromic film according to the brightness of the eye region includes: adjusting the electrochromic film to a transparent state when the brightness of the eye region is less than a set brightness threshold; and adjusting the electrochromic film to a non-transparent state when the brightness of the eye region is greater than or equal to the set brightness threshold.

[0051] Specifically, the transparency of the electrochromic film needs to be adjusted according to the brightness of the eye area to achieve automatic sun shading. A preset brightness threshold is set. When the brightness of the eye area is less than the preset threshold, it means that the current light will not affect the vision of the front passenger. The electrochromic film is adjusted to a transparent state to maximize the clarity of the front passenger's forward vision. When the brightness of the eye area is greater than or equal to the preset brightness threshold, it means that the current light will affect the vision of the front passenger, causing glare. At this time, the electrochromic film can be adjusted to a non-transparent state to block the light shining on the front passenger's eye area. Thus, this embodiment can automatically detect whether the front passenger is glared by the sun according to the preset brightness threshold. When glare occurs, the transparency of the electrochromic film in the top area of ​​the windshield can be automatically reduced to achieve automatic sun shading, avoiding the safety hazards and inconvenience of manually adjusting the physical sun visor.

[0052] For example, when the brightness threshold is set to X, if the vehicle is traveling towards the sun, the brightness of the area in front of the passenger's eyes is determined to be Y. If the Y value is greater than the X value, it can be determined that the light is affecting the passenger's vision and causing glare. The electrochromic film in the windshield is then automatically adjusted to change its transparency, making it opaque. Conversely, if the vehicle is traveling away from the sun, the brightness of the area in front of the passenger's eyes is determined to be Z. If the Z value is less than the X value, the electrochromic film automatically becomes transparent, ensuring maximum forward visibility for the passenger. This achieves sunshade without manual adjustment, without compromising driving safety.

[0053] In some embodiments, adjusting the electrochromic film to a non-transparent state includes: adjusting the transparency of the electrochromic film to decrease step by step until the brightness of the eye area is less than a set brightness threshold.

[0054] Specifically, when determining whether light affects the vision of front-seat passengers based on the brightness of the eye area, the transparency of the electrochromic film is gradually reduced, progressively adjusting it from a transparent to an opaque state. If, after one adjustment, the brightness of the eye area is still greater than or equal to a set brightness threshold, the transparency of the electrochromic film continues to be gradually reduced until the brightness of the eye area falls below the set brightness threshold, at which point the adjustment of the electrochromic film's transparency stops, and the current state is maintained. Therefore, by gradually reducing the transparency of the electrochromic film until the brightness of the eye area falls below the set brightness threshold, the algorithm for controlling the electrochromic film is simplified, optimizing the efficiency of the controller in adjusting the transparency of the electrochromic film. Furthermore, by gradually reducing the transparency of the electrochromic film, compared to instantly adjusting the electrochromic film to an opaque state, it is beneficial to optimize the visual experience for front-seat passengers.

[0055] In some embodiments, adjusting the electrochromic film to a non-transparent state includes: adjusting the rate at which the transparency of the electrochromic film decreases according to the brightness of the eye region.

[0056] Specifically, the rate at which the transparency of the electrochromic film decreases can also be adjusted. For example, when the brightness in the eye area is low, the rate at which the transparency of the electrochromic film decreases can be slowed down to avoid excessively rapid changes that prevent the film from being adjusted to its most precise state and achieve the best sun-shading effect. When the brightness in the eye area is high, the rate at which the transparency of the electrochromic film decreases can be fastened to quickly adjust the film to the ideal state and avoid taking too long, which could affect the sun-shading effect.

[0057] In some embodiments, the method further includes: acquiring the brightness of the mouth area of ​​the front passenger of the vehicle, and after adjusting the electrochromic film to a non-transparent state, the vehicle automatic sunshade method further includes: adjusting the transparency of the electrochromic film according to the brightness of the eye area and the brightness of the mouth area; when the difference between the brightness of the eye area and the brightness of the mouth area is less than a set difference, automatically adjusting the electrochromic film to return to a transparent state.

[0058] Specifically, an image acquisition component can capture facial images of the front-seat passengers. While analyzing the brightness of the passenger's eye area, it can also acquire the brightness of the mouth area. This analysis of the eye and mouth area brightness allows for automatic adjustment of the electrochromic film's transparency after sun shading. Specifically, if the difference between the eye and mouth area brightness is less than a set value, it indicates a small difference in facial brightness and minimal impact on the eyes. In this case, the electrochromic film can be restored to a transparent state. Conversely, if the difference exceeds the set value, it indicates a significant impact on the eyes, and the film will not be restored to its transparent state. In addition, if the difference between the brightness of the eye area and the brightness of the mouth area is less than the set difference and continues for a certain period of time, the electrochromic film will be controlled to return to the transparent state, which can effectively improve the accuracy of automatically controlling the electrochromic film to return to the transparent state.

[0059] Alternatively, an interval can be set. After the interval is exceeded, the electrochromic film automatically returns to a transparent state. During this process, the brightness of the eye area is monitored. If the brightness in the eye area does not exceed the set brightness threshold during the return to transparency, the film continues to automatically restore transparency. If the brightness in the eye area exceeds the set threshold during the return to transparency, the restoration of transparency stops, and the film remains opaque. This allows for accurate judgment of whether sun shading is needed, selecting the most suitable state for the electrochromic film.

[0060] This disclosure also provides an automatic sunshade system for vehicles. Figure 4 This is a schematic diagram of the structure of an automatic sunshade system for vehicles provided in an embodiment of this disclosure. Figure 4 As shown, the system includes a detection device 21 and an adjustment device 22. The detection device 21 is used to detect the brightness of the eye area of ​​the front passenger in the vehicle. The adjustment device 22 is communicatively connected to the detection device 21 and is used to execute the automatic sunshade method for vehicles as described in any of the above embodiments. Therefore, it has the beneficial effects described in the above embodiments, which will not be repeated here. For example, the adjustment device 22 can be a BCM (Body Control Module).

[0061] In some embodiments, the adjustment device 22 is further configured to acquire an image of the eye region of the front passenger of the vehicle, and acquire the brightness of the eye region of the front passenger of the vehicle based on the image of the eye region of the front passenger of the vehicle.

[0062] In some embodiments, the adjusting device 22 is further configured to adjust the electrochromic film to a transparent state when the brightness of the eye area is less than a set brightness threshold, and to adjust the electrochromic film to a non-transparent state when the brightness of the eye area is greater than or equal to the set brightness threshold.

[0063] In some embodiments, the adjustment device 22 is further specifically used to adjust the electrochromic film to a non-transparent state, including adjusting the transparency of the electrochromic film to decrease step by step until the brightness of the eye area is less than a set brightness threshold.

[0064] In some embodiments, the adjustment device 22 is further specifically used to adjust the electrochromic film to a non-transparent state, including adjusting the rate at which the transparency of the electrochromic film decreases according to the brightness of the eye area.

[0065] In some embodiments, the adjustment device 22 is further configured to acquire the brightness of the mouth area of ​​the front passenger of the vehicle; adjust the transparency of the electrochromic film according to the brightness of the eye area and the brightness of the mouth area; and automatically adjust the electrochromic film to return to a transparent state when the difference between the brightness of the eye area and the brightness of the mouth area is less than a set difference.

[0066] In some embodiments, combined with Figure 2 and Figure 3 The electrochromic film 32 can be set as a strip film, with the electrochromic film 32 extending in the horizontal direction, and multiple electrochromic films 32 arranged in the vertical direction at the top area of ​​the windshield 31.

[0067] Specifically, the electrochromic film 32 is positioned from top to bottom along the top of the windshield 31. The electrochromic film 32 can be clipped in, i.e., embedded inside the glass, or it can be adhered to the glass surface. By horizontally arranging the electrochromic film 32 and positioning it from top to bottom along the top of the windshield 31, the transparency of the electrochromic film 32 can be adjusted layer by layer as light enters. This allows for gradual shading based on light conditions. The system minimizes the reduction in light transmittance of the electrochromic strip from top to bottom while avoiding glare, thereby maximizing the visible area and ensuring the driver's field of vision. For example, the electrochromic film 32 can be positioned only in front of the driver's seat or only in front of the passenger seat. Figure 2 As shown, electrochromic films can also be installed in front of both the driver's seat and the front passenger seat.

[0068] It should be noted that, Figure 2 and Figure 3The electrochromic film 32 is provided to extend horizontally, and multiple electrochromic films 32 are arranged vertically in the top area of ​​the windshield 31. This embodiment of the disclosure does not limit the extension direction and arrangement direction of the electrochromic film, as long as it can achieve sun shading for the eye area of ​​the front passenger of the vehicle.

[0069] In some embodiments, such as Figure 2 As shown, the adjustment device 22 includes multiple adjustment terminals, which are electrically connected to multiple electrochromic films 32 via electrode cables 33. The electrode cables 33 are routed along the edge of the windshield 31.

[0070] Specifically, multiple electrochromic films 32 are connected to corresponding adjustment terminals via electrode cables 33. Each electrochromic film 32 receives adjustment signals from the adjustment terminals and adjusts its own transparency. After the detection device 21 detects the brightness of the eye area, the adjustment device 22 determines the appropriate adjustment information and transmits it to the corresponding electrochromic film 32 via the electrode cables 33. Electrochromic films 32 that do not require transparency adjustment remain unchanged, while those requiring transparency adjustment adjust according to the adjustment information to achieve an automatic sunshade effect. This realizes the segmented adjustment of the electrochromic films 32. For example, the adjustment terminals can be electrically connected one-to-one with each electrochromic film 32, and each electrochromic film 32 can be individually powered to control its light transmission, achieving individual adjustment of each electrochromic film 32. It should be noted that the number of electrochromic films in this embodiment is not limited and can be set according to actual needs.

[0071] This invention also provides an in-vehicle system. Figure 5 This is a schematic diagram of the structure of a vehicle-mounted system provided in an embodiment of the present invention. Figure 5 As shown, the vehicle system includes a processor and a memory. The processor executes the steps of the automatic sunshade method for vehicles as described in the above embodiments by calling the program or instructions stored in the memory. Therefore, it has the beneficial effects described in the above embodiments, which will not be repeated here.

[0072] like Figure 5 As shown, the vehicle system can be configured to include at least one processor 301, at least one memory 302, and at least one communication interface 303. The various components of the vehicle system are coupled together via a bus system 304. The communication interface 303 is used for information transmission with external devices. It is understood that the bus system 304 is used to implement communication between these components. In addition to a data bus, the bus system 304 also includes a power bus, a control bus, and a status signal bus. However, for clarity, in... Figure 5 The general designated all buses as Bus System 304.

[0073] It is understood that the memory 302 in this embodiment can be volatile memory or non-volatile memory, or may include both volatile and non-volatile memory. In some embodiments, the memory 302 stores the following elements: executable units or data structures, or subsets thereof, or extended sets thereof, operating systems, and applications. In this embodiment of the invention, the processor 301 executes the steps of various embodiments of the vehicle automatic sunshade method provided in this embodiment of the invention by calling the programs or instructions stored in the memory 302.

[0074] The automatic vehicle sunshade method provided in this embodiment of the invention can be applied to, or implemented by, processor 301. Processor 301 can be an integrated circuit chip with signal processing capabilities. During implementation, each step of the above method can be completed by integrated logic circuits in the hardware of processor 301 or by instructions in software form. Processor 301 can be a general-purpose processor, a digital signal processor (DSP), an application-specific integrated circuit (ASIC), a field-programmable gate array (FPGA), or other programmable logic devices, discrete gate or transistor logic devices, or discrete hardware components. The general-purpose processor can be a microprocessor or any conventional processor.

[0075] The steps of the automatic vehicle sunshade method provided in this embodiment of the invention can be directly implemented by a hardware decoding processor, or implemented by a combination of hardware and software units in the decoding processor. The software units can reside in random access memory, flash memory, read-only memory, programmable read-only memory, electrically erasable programmable memory, registers, or other mature storage media in the art. This storage medium is located in memory 302, and processor 301 reads the information in memory 302 and combines it with hardware to complete the steps of the method.

[0076] The vehicle-mounted system may also include one or more physical components to execute instructions generated by the processor 301 when performing the automatic sunshade method for vehicles provided in this embodiment. Different physical components may be located within the vehicle-mounted system or outside the system, such as on a cloud server. Each physical component, together with the processor 301 and the memory 302, works to implement the functions of the vehicle-mounted system in this embodiment.

[0077] This invention also provides a storage medium, such as a computer-readable storage medium, storing a program or instructions that cause a computer to execute a method for performing an automatic sunshade system for a vehicle, the method comprising:

[0078] Obtain the brightness of the eye area of ​​the front passenger in the vehicle;

[0079] The transparency of the electrochromic film is automatically adjusted according to the brightness of the eye area; wherein, multiple electrochromic films are provided on the windshield of the vehicle, and the multiple electrochromic films are arranged in sections on the top area of ​​the windshield.

[0080] Optionally, when executed by a computer processor, the computer-executable instructions can also be used to execute the technical solution of the automatic vehicle sunshade method provided in any embodiment of the present invention.

[0081] Based on the above description of the implementation methods, those skilled in the art can clearly understand that this application can be implemented using software and necessary general-purpose hardware, and of course, it can also be implemented using 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 can be stored in a computer-readable storage medium, such as a computer floppy disk, read-only memory (ROM), random access memory (RAM), flash memory, hard disk, or optical disk, etc., including several instructions to cause a computer device (which may be a personal computer, server, or network device, etc.) to execute the methods of the various embodiments of the present invention. This disclosure also provides a vehicle including the automatic sunshade system described in any of the above embodiments. Since this disclosure includes the automatic sunshade system in any of the above embodiments, it has the same or corresponding beneficial effects as the automatic sunshade system described in the above embodiments. It should be noted that the vehicle provided in this disclosure may also include other circuits and devices for supporting its normal operation, and this embodiment does not specifically limit this. For example, the vehicle provided in this disclosure can be a new energy vehicle, such as a plug-in hybrid electric vehicle, a range-extended electric vehicle, or a pure electric vehicle, etc. This disclosure does not specifically limit this.

[0082] It should be noted that, in this document, relational terms such as "first" and "second" are used merely to distinguish one entity or operation from another, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Furthermore, 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. Without further limitations, 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 said element.

[0083] The above description is merely a specific embodiment of this disclosure, enabling those skilled in the art to understand or implement it. Various modifications to these embodiments will be readily apparent to those skilled in the art, and the general principles defined herein may be implemented in other embodiments without departing from the spirit or scope of this disclosure. Therefore, this disclosure is not to be limited to the embodiments described herein, but is to be accorded the widest scope consistent with the principles and novel features disclosed herein.

Claims

1. A method of automatically shading a vehicle, characterized by, include: Obtain the brightness of the eye area of ​​the front passenger in the vehicle; The transparency of the electrochromic film is automatically adjusted according to the brightness of the eye area; wherein, a plurality of electrochromic films are provided on the windshield of the vehicle, and the plurality of electrochromic films are arranged in sections on the top area of ​​the windshield; The step of adjusting the transparency of the electrochromic film according to the brightness of the eye area includes: when the brightness of the eye area is greater than or equal to a set brightness threshold, adjusting the electrochromic film to a non-transparent state; The method further includes: when the electrochromic film is adjusted to a non-transparent state for a period of time exceeding the interval, automatically controlling the electrochromic film to return to a transparent state, and detecting the brightness of the eye area during the recovery process; if the brightness of the eye area does not exceed the set brightness threshold during the recovery process of the electrochromic film to a transparent state, then automatically restoring the transparency of the electrochromic film continues; if the brightness of the eye area exceeds the set brightness threshold during the recovery process of the electrochromic film to a transparent state, then stopping the restoration of the transparency of the electrochromic film and continuing to adjust the electrochromic film to a non-transparent state.

2. The vehicle automatic sunshade method according to claim 1, characterized by, The acquisition of the eye area brightness of the front passenger in the vehicle includes: Acquire images of the eye region of the front-seat passengers in the vehicle; The brightness of the eye area of ​​the front passenger in the vehicle is obtained from the image of the eye area of ​​the front passenger in the vehicle.

3. The vehicle automatic sunshade method according to claim 1, characterized by, The adjustment of the transparency of the electrochromic film based on the brightness of the eye region includes: When the brightness of the eye area is less than a set brightness threshold, the electrochromic film is adjusted to a transparent state.

4. The vehicle automatic sunshade method according to claim 1, characterized by, Adjusting the electrochromic film to a non-transparent state includes: The transparency of the electrochromic film is gradually reduced until the brightness of the eye area is less than the set brightness threshold.

5. The vehicle automatic sunshade method according to claim 1, characterized by, Adjusting the electrochromic film to a non-transparent state includes: The rate at which the transparency of the electrochromic film decreases is adjusted according to the brightness of the eye region.

6. The automatic vehicle sunshade method according to any one of claims 1 or 3-5, characterized in that, Also includes: Obtain the brightness of the mouth area of ​​the front passenger in the vehicle; After adjusting the electrochromic film to a non-transparent state, the vehicle automatic sunshade method further includes: The transparency of the electrochromic film is adjusted according to the brightness of the eye area and the brightness of the mouth area; When the difference between the brightness of the eye area and the brightness of the mouth area is less than a set difference, the electrochromic film is automatically adjusted to return to a transparent state.

7. An automatic sunshade system for vehicles, characterized in that, include: A detection device used to detect the brightness of the eye area of ​​front-seat passengers in a vehicle; An adjustment device, communicatively connected to the detection device, is used to perform the automatic vehicle sunshade method as described in any one of claims 1-6.

8. The vehicle automatic sunshade system of claim 7, wherein The electrochromic film is a strip-shaped film that extends horizontally, and multiple electrochromic films are arranged vertically in the top area of ​​the windshield.

9. The vehicle automatic sunshade system of claim 7, wherein The adjustment device includes multiple adjustment terminals, which are electrically connected to multiple electrochromic films via electrode cables, which run along the edge of the windshield.

10. A vehicle characterized by comprising: Including the vehicle automatic sunshade system as described in any one of claims 7-9.

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