Vehicle window electrochromic system, vehicle and vehicle control method

Abstract

The invention provides a car window electrochromism system, and belongs to the field of car intelligent electronics, a power supply module and a control module in the car window electrochromism system are both directly integrated and installed on an electrochromism film, and the power supply module is configured to supply power to the control module and the electrochromism film; the control module is used for controlling the input current and / or voltage of the electrochromic film so as to change the transparency of the electrochromic film, in other words, the electrochromic film is provided with a set of integrated electric control module which is completely independent; the mode that unified power supply is carried out through a vehicle storage battery and unified control is carried out through a vehicle side controller which is commonly used in the prior art is not needed, and when the vehicle window electrochromic systems of different vehicle types are assembled, only the shape of the electrochromic film needs to be matched with the shape of the vehicle window. Wiring with a large span and complex whole vehicle electric control signal matching are not needed, and the matching difficulty and the implementation cost when the vehicle window electrochromic system covers different vehicle types are reduced.

Description

Technical Field

[0001] This application relates to the field of automotive intelligent electronics, and in particular to an electrochromic window system, a vehicle, and a vehicle control method. Background Technology

[0002] As China's economy grows, automobiles are becoming increasingly popular as consumer goods, and new demands are constantly emerging, with higher requirements for comfort and intelligence. Against this backdrop, users are also demanding more sun protection and privacy from their cars, leading to more and more models being equipped with physical sunshades to improve sun protection and privacy.

[0003] However, with the improvement of integration and manufacturing level, more and more vehicles are starting to use electrochromic light-emitting glass on side windows or sunroofs to achieve intelligent light management. Users can adjust the electrochromic color of the window glass through the central control screen or vehicle system to replace the traditional physical sunshade.

[0004] Currently, electrochromic window glass is powered by a unified power supply from the entire vehicle. Under this power supply method, if the electrochromic window film is installed during vehicle assembly, the initial development and matching costs for power supply and signal transmission are high. If the electrochromic window film is added after vehicle assembly, wiring of the power supply system is required during installation. This may require disassembling and reassembling vehicle trim pieces to conceal the wiring, resulting in higher installation costs, more labor time, and greater difficulty in operation, as well as higher matching costs. Summary of the Invention

[0005] In view of this, this application provides an electrochromic window system that can reduce the difficulty and implementation cost of matching the electrochromic window function to different vehicle models.

[0006] On one hand, this application provides an electrochromic system for vehicle windows, the system comprising:

[0007] Power supply module.

[0008] Control module.

[0009] Electrochromic film.

[0010] The power supply module and control module are both installed on the electrochromic film. The power supply module, control module and electrochromic film are electrically connected to each other. The power supply module is configured to supply power to the control module and electrochromic film. The control module is configured to receive control commands and control the power supply module to change the current and / or voltage output to the electrochromic film according to the control commands and its own pre-stored logical relationship. The electrochromic film is configured to change its transparency according to different input currents and / or voltages. The logical relationship is the correspondence between control commands and output signals.

[0011] Optionally, the system also includes a switch module mounted on the electrochromic film and powered by the power supply module. The switch module is configured to output an electrical signal based on the detected input switching operation, which serves as the input signal for the control module.

[0012] Optionally, the system also includes a photosensitive module mounted on the electrochromic film and powered by a power supply module. The photosensitive module is configured to output an electrical signal based on the detected input light intensity, which serves as the input signal for the control module.

[0013] Optionally, the system also includes a communication module mounted on the electrochromic film and powered by the power supply module. The communication module is configured to output an electrical signal according to a detected input control command, which serves as the input signal for the control module.

[0014] Alternatively, the communication module is configured to connect to the vehicle controller via wireless communication and receive control commands forwarded by the vehicle controller via wireless communication, wherein the control commands are output by the vehicle controller based on the detected input control information.

[0015] Alternatively, the vehicle controller is also configured to connect to an audio receiving module via a CAN bus. The audio receiving module is configured to output control information based on received voice input and forward the control information to the vehicle controller via the CAN bus.

[0016] Alternatively, the vehicle controller is also configured to connect to the vehicle infotainment screen module via a CAN bus. The vehicle infotainment screen module is configured to output control information based on received touch input and forward the control information to the vehicle controller via the CAN bus.

[0017] On the other hand, this application provides a vehicle including a vehicle controller and a plurality of windows, wherein each of the plurality of windows is provided with a window electrochromic system as shown in the above aspect, and each window electrochromic system is connected to the vehicle controller via wireless communication.

[0018] On the other hand, this application provides a vehicle control method, which is executed by the vehicle of the above aspect, wherein each window electrochromic system includes an audio receiving module, and the method includes:

[0019] For each car window electrochromic system, when the audio receiving module receives a voice input to control the electrochromic film to change color, the control module determines whether the object controlled by the voice input is the car window electrochromic system where the audio receiving module is located.

[0020] If the control module determines that the controlled object of the voice input is the electrochromic window system where the audio receiving module is located, the control module controls the power supply module to change the current and / or voltage output to the electrochromic film according to the control command corresponding to the voice input and its own pre-stored logical relationship.

[0021] Alternatively, the method may also include:

[0022] If the control module determines that the controlled object of the voice input is not the window electrochromic system where the audio receiving module is located, the window electrochromic system reports the sound intensity of the voice input to the vehicle controller.

[0023] After receiving the voice input intensity reports from all the window electrochromic systems, the vehicle controller sends the control command corresponding to the voice input with the strongest sound intensity to the control module of the window electrochromic system that received the voice input with the strongest sound intensity.

[0024] The electrochromic window system provided in this application integrates both the power supply module and the control module directly onto the electrochromic film. The power supply module is configured to supply power to both the control module and the electrochromic film. The control module controls the input current and / or voltage of the electrochromic film, thereby changing its transparency. In other words, the electrochromic film has a completely independent integrated electronic control module, eliminating the need for the traditional method of unified power supply via the vehicle battery and unified control via a vehicle-side controller. When equipping different vehicle models with the electrochromic window system, it is only necessary to match the shape of the electrochromic film to the shape of the window, without the need for extensive wiring and complex vehicle electronic control signal matching. This reduces the matching difficulty and implementation cost when covering different vehicle models with the electrochromic window system. Attached Figure Description

[0025] To more clearly illustrate the technical solutions in the embodiments of this application, the accompanying drawings used in the description of the embodiments will be briefly introduced below. Obviously, the accompanying drawings described below are only some embodiments of this application. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0026] Figure 1 This is an architectural diagram of the electrochromic window system provided in an embodiment of this application.

[0027] Figure 2 Another architectural diagram of the electrochromic window system provided in this application embodiment;

[0028] Figure 3 This application provides an architectural diagram of the vehicle as an embodiment.

[0029] Figure 4 A flowchart of a vehicle control method provided in an embodiment of this application. Detailed Implementation

[0030] The technical solutions of the embodiments of this application will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this application, not all embodiments. Based on the embodiments of this application, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of this application.

[0031] First, let's introduce the application scenarios involved in the embodiments of this application:

[0032] With China's economic growth, automobiles are becoming increasingly popular as consumer goods, and new demands are constantly emerging, with higher requirements for comfort and intelligence. Against this backdrop, car users are also placing greater emphasis on sun protection and privacy. Currently, sun protection for car windows and panoramic sunroofs mainly relies on physical sunshades. However, with continuous technological advancements, modern automotive sunshade technology has evolved from traditional physical blocking to intelligent dynamic control technology, primarily through electrochromic color-changing glass to achieve intelligent light management. By 2025, the number of vehicles equipped with this technology in China will exceed 100,000, and the market penetration rate of panoramic sunroofs will reach over 30%. Users can adjust the settings via the central control screen or the vehicle's infotainment system. Electrochromic window film offers the following advantages: intelligent light adjustment, supporting switching between transparent and dark modes, manual or remote operation via a mobile app, automatically sensing light intensity and adjusting light transmittance, achieving a 99% light-blocking rate under strong light while maintaining a clear view, thus providing privacy protection. It also provides heat insulation and sun protection, effectively blocking 99% of ultraviolet rays and 80% of infrared rays, reducing the interior temperature by approximately 5°C and decreasing air conditioning energy consumption. Privacy protection: Dark mode can block the view, suitable for business negotiations or rest, enhancing in-car privacy. Safety: Low operating voltage (≤1.5V), high durability, tested for 100,000 cycles, adaptable to environments from -20℃ to 90℃. Electrochromic window films for car windows have the following disadvantages: power supply requires the entire vehicle's power supply, resulting in high pre-installation costs, limited user options, and requiring modification of existing market models for control, leading to high matching costs. Technical limitations: the color-changing response speed and stability in extreme environments (such as extreme cold or heat) need further verification, and frequent switching over a long period may affect electrode lifespan. Because modification requires the entire vehicle's power supply, each film on the glass needs its own power supply, and control also needs to be done through the central control system, making control inconvenient and limiting applicability; currently, it only fits 95% of car models, requiring specific model adaptation for installation. This application can solve the problems of high vehicle assembly costs, difficult assembly, and inconvenient control in existing systems. It provides users with a convenient, comfortable, and intelligent window shading product that provides sun protection and privacy.

[0033] This application provides an electrochromic window system that reduces the difficulty and implementation cost of matching electrochromic window functionality to different vehicle models. Figure 1 As shown, the car window electrochromic system includes:

[0034] Power supply module 101.

[0035] Control module 102.

[0036] Electrochromic film 103.

[0037] The power supply module 101 and the control module 102 are both mounted on the electrochromic film 103. The power supply module 101, the control module 102 and the electrochromic film 103 are electrically connected to each other. The power supply module 101 is configured to supply power to the control module 102 and the electrochromic film 103. The control module 102 is configured to receive control commands and control the power supply module 101 to change the current and / or voltage output to the electrochromic film 103 according to the control commands and its own pre-stored logical relationship. The electrochromic film 103 is configured to change its transparency according to different input currents and / or voltages. The logical relationship is the correspondence between the control commands and the output signals.

[0038] The electrochromic window system provided in this application integrates both the power supply module and the control module directly onto the electrochromic film. The power supply module is configured to supply power to both the control module and the electrochromic film. The control module controls the input current and / or voltage of the electrochromic film, thereby changing its transparency. In other words, the electrochromic film has a completely independent integrated electronic control module, eliminating the need for the traditional method of unified power supply via the vehicle battery and unified control via a vehicle-side controller. When equipping different vehicle models with the electrochromic window system, it is only necessary to match the shape of the electrochromic film to the shape of the window, without the need for extensive wiring and complex vehicle electronic control signal matching. This reduces the matching difficulty and implementation cost when covering different vehicle models with the electrochromic window system.

[0039] This application also provides another electrochromic window system, which can reduce the difficulty and implementation cost of matching the electrochromic window function to different vehicle models, such as... Figure 2 As shown, the car window electrochromic system includes:

[0040] Power supply module 201.

[0041] Control module 202.

[0042] Electrochromic film 203.

[0043] The power supply module 201 and the control module 202 are both mounted on the electrochromic film 203. The power supply module 201, the control module 202 and the electrochromic film 203 are electrically connected to each other. The power supply module 201 is configured to supply power to the control module 202 and the electrochromic film 203. The control module 202 is configured to receive control commands and control the power supply module 201 to change the current and / or voltage output to the electrochromic film 203 according to the control commands and its own pre-stored logical relationship. The electrochromic film 203 is configured to change its transparency according to different input currents and / or voltages. The logical relationship is the correspondence between the control commands and the output signals.

[0044] The electrochromic window system provided in this application embodiment can be applied to a vehicle ecosystem control scheme based on AIoT (AI Artificial Intelligence + IoT Internet of Things) technology. The electrochromic film 203 achieves convenient installation and control through its built-in power supply module 201 and control module 202. Essentially, each film has its own microcontroller and power supply system. An alarm will sound when the energy storage device of the power supply module 201 is depleted, allowing for individual replacement of the energy storage device. Currently, power supply is uniformly supplied to the entire vehicle. Under this method, if the electrochromic window system is installed pre-installed, the power supply and signal transmission costs and testing expenses are high. If the system is installed retrofitted, since each electrochromic film requires power, installation necessitates wiring the power supply system, requiring disassembly and concealment of wiring, resulting in high modification costs, time consumption, and difficulty in operation.

[0045] In some alternative embodiments, the energy storage device of the power supply module 201 may be a button battery, thereby allowing the energy storage device of the power supply module 201 to be easily replaced when the power is depleted.

[0046] In some optional embodiments, since users generally need to darken the color of the car window electrochromic film 203, i.e. reduce its transparency, in use scenarios with strong external light intensity, in order to make full use of the external light intensity and achieve continuous power supply of the power supply module 201, the power supply module 201 can also be a solar power supply module, i.e., it uses solar energy to generate electricity and stores it in a corresponding energy storage device.

[0047] In some alternative embodiments, the system further includes a switch module 204 mounted on the electrochromic film 203 and powered by the power supply module 201. The switch module 204 is configured to output an electrical signal based on a detected input switch operation, the electrical signal serving as an input signal to the control module 202.

[0048] It is understood that the switch module 204 can be a single-point touch switch, a slide touch switch, or a button switch. The switch module 204 is used to output corresponding electrical signals according to the user's manual input of the switch operation, which are then used as input signals for the control module 202. This input signal can be a Hall linear control signal or a digital control signal, so that the control module 202 controls the power supply module 201 to change the current and / or voltage output to the electrochromic film 203 according to the input signal control command and its own pre-stored logical relationship, so that the electrochromic film 203 changes the actual display effects such as color, color depth, and transparency, thereby meeting the user's requirements for sunshade, privacy, and comfort.

[0049] In some optional embodiments, if the switch module 204 is a single-point touch switch, the touch method when the user touches the single-point touch switch can be determined. If the touch method is a short touch (e.g., a single touch time of less than one second), a corresponding electrical signal is generated. This electrical signal is used to cause the control module 202 to control the electrochromic film 203 to sequentially switch between the lowest transparency, medium transparency, and highest transparency in a single cycle. If the electrochromic film 203 is currently at its lowest transparency, after the user performs a short touch on the switch module 204, the electrochromic film will change to a medium transparency state. If the user then performs another short touch on the switch module 204, the electrochromic film will change to its highest transparency state. If the user then performs another short touch on the switch module 204, the electrochromic film will return to a medium transparency state, and so on, in a cyclical manner.

[0050] If the touch method is a long touch (e.g., a single touch lasting more than one second), a corresponding cyclic electrical signal is generated. This cyclic electrical signal serves as the input signal to the control module 202, causing the transparency of the electrochromic film 203 to continuously change according to a preset cycle. That is, within a preset time, it gradually changes from the highest transparency to the lowest transparency, and then gradually changes from the lowest transparency back to the highest transparency, and so on, in a continuous cycle. When the user no longer touches the switch module 204, that is, when the hand leaves the single-point touch switch, the transparency of the electrochromic film 203 no longer changes and remains at its current transparency.

[0051] In some alternative embodiments, the system further includes a photosensitive module 205, which is mounted on the electrochromic film 203 and powered by the power supply module 201. The photosensitive module 205 is configured to output an electrical signal based on the detected input light intensity, the electrical signal serving as an input signal to the control module 202.

[0052] Understandably, since the electrochromic film 203 can provide heat insulation and sun protection when the external light intensity is strong, a photosensitive module 205 is set up to output a corresponding electrical signal according to the detected different light intensities and forward it to the control module 202. This signal is a linear real-time input signal, which enables the control module 202 to control the power supply module 201 to change the current and / or voltage output to the electrochromic film 203 according to the input signal control command and its own pre-stored logical relationship. This causes the electrochromic film 203 to change the actual display effects such as color, color depth, and transparency, thereby meeting the user's requirements for sun shading, privacy, and comfort.

[0053] When the power supply module 201 is a solar power supply module, the photosensitive module 205 and the power supply module 201 can be integrated together, thereby reducing the system's volume and ensuring the visibility through the vehicle window.

[0054] In some alternative embodiments, the system further includes a communication module 206, which is mounted on the electrochromic film 203 and powered by the power supply module 201. The communication module 206 is configured to output an electrical signal according to a detected input control command, the electrical signal serving as an input signal to the control module 202.

[0055] In some optional embodiments, the communication module 206 is configured to connect to the vehicle controller 207 via wireless communication and receive control commands forwarded by the vehicle controller 207 via wireless communication, wherein the control commands are output by the vehicle controller 207 based on detected input control information.

[0056] It is understandable that, in addition to adjusting the transparency of the electrochromic film 203 according to the switch module 204 or the photosensitive module 205 set on the electrochromic film 203, the transparency can also be remotely adjusted by means of wireless communication between the communication module 206 and the vehicle controller 207. Specifically, remote adjustment can include adjustment via voice and adjustment via the vehicle screen.

[0057] In some alternative embodiments, the vehicle controller 207 is also configured to connect to the audio receiving module 208 via a CAN bus. The audio receiving module 208 is configured to output control information based on the received voice input and forward the control information to the vehicle controller 207 via the CAN bus.

[0058] Understandably, since the vehicle itself is equipped with voice control, an audio receiving module 208 (i.e., a microphone) will be placed in the interior roof near each passenger. Therefore, the audio receiving module 208 can be connected to the vehicle controller 207 via the CAN bus, and the voice control function of the vehicle itself can be used to interact with the electrochromic window system, thereby adjusting the transparency of the electrochromic film 203 by the user's voice.

[0059] In some optional embodiments, the audio receiving module 208 can also be regarded as being integrated into the window electrochromic system. For each window electrochromic system, when the audio receiving module 208 receives a voice input to control the electrochromic film 203 to change color, the control module 202 determines whether the control object of the voice input is the window electrochromic system where the audio receiving module 208 is located.

[0060] Understandably, the audio receiving module 208 and the electrochromic window system can be labeled. For example, the audio receiving module 208 and the electrochromic window system located on the left front window are both labeled W1, the right front window is labeled W2, the left rear window is labeled W3, the right rear window is labeled W4, and so on for any additional windows. If voice input is received through the audio receiving module 208 (labeled W1) on the left front window, the control module 202 determines whether the control object of the voice input is the electrochromic window system on the left front window (also labeled W1). That is, through semantic and voiceprint recognition, it determines whether the content of the voice input includes "left front window" or "driver's side window". If it does, it is considered that the control module 202 has determined that the control object of the voice input is the electrochromic window system where the audio receiving module 208 is located. Then, the control module 202 controls the power supply module 201 to change the current and / or voltage output to the electrochromic film 203 according to the control command corresponding to the voice input and its pre-stored logical relationship.

[0061] Conversely, if the control module determines that the controlled object of the voice input is not the electrochromic window system where the audio receiving module is located, or if it determines through semantic and voiceprint recognition that the voice input does not contain any keywords related to "left," "right," "front," "rear," "driving," or "passenger," which could indicate the controlled object, then it means that the user has not explicitly indicated which window to control through the voice content. In this case, the sound intensity can be used to determine which window the user specifically wants to control.

[0062] The window electrochromic system reports the intensity of the voice input to the vehicle controller 207.

[0063] After receiving the voice input intensity reports from all the window electrochromic systems, the vehicle controller 207 sends the control command corresponding to the strongest voice input to the control module 202 of the window electrochromic system that received the strongest voice input. This causes the control module 202 to control the power supply module 201 to change the current and / or voltage output to the electrochromic film 203 according to the input signal control command and its pre-stored logical relationship. This causes the electrochromic film 203 to change the actual display effects such as color, color depth, and transparency, thereby meeting the user's requirements for sunshade, privacy, and comfort.

[0064] Using this approach, for example, a user sitting on the right rear seat, closest to the right rear window, can simply say "increase transparency" if they want to increase the transparency of the right rear window, without needing to specifically specify "increase right rear window transparency." In this case, since the user is closest to the audio receiving module 208 of the right rear window electrochromic system, the voice input reported by the right rear window electrochromic system has the highest sound intensity among all the voice inputs reported by the electrochromic systems. Therefore, it is determined that the user wants to control the right rear window, and the control command is further sent to the control module 202 of the right rear window electrochromic system. This improves the adaptability and triggering convenience of the solution, allowing members in different positions to independently control the color change of the nearby electrochromic film 203.

[0065] In some optional embodiments, the vehicle controller 207 is also configured to connect to the vehicle infotainment screen module 209 via a CAN bus. The vehicle infotainment screen module 209 is configured to output control information based on received touch input and forward the control information to the vehicle controller 207 via the CAN bus.

[0066] Understandably, users can use the vehicle's infotainment screen to adjust the transparency of the windows. The infotainment screen module 209 is configured to output control information based on the received touch input and forward this information to the vehicle controller 207 via the CAN bus. The vehicle controller 207 then forwards the control information to the communication module 206 via wireless communication. The communication module 206 then sends the control information to the control module 202, which in turn controls the power supply module 201 to change the current and / or voltage output to the electrochromic film 203 based on the input signal control command and its pre-stored logical relationship. This causes the electrochromic film 203 to change its color, color depth, and transparency, thus meeting the user's requirements for sun shading, privacy, and comfort.

[0067] The electrochromic window system provided in this application integrates both the power supply module and the control module directly onto the electrochromic film. The power supply module powers both the control module and the electrochromic film, while the control module controls the input current and / or voltage of the electrochromic film, thereby altering its transparency. In other words, the electrochromic film possesses a completely independent, integrated electronic control module, eliminating the need for the traditional method of unified power supply via the vehicle battery and unified control via a vehicle-side controller. When equipping different vehicle models with the electrochromic window system, only the shape of the electrochromic film needs to match the window shape, eliminating the need for extensive wiring and complex vehicle electronic control signal matching. This reduces the difficulty and implementation cost of covering different vehicle models with the electrochromic window system. Furthermore, the electrochromic window system allows for convenient and quick adjustment of the film's transparency via user touch on the window, changes in ambient light intensity, user voice input, and touch operation on the vehicle's infotainment screen, significantly improving ease of adjustment and adaptability.

[0068] This application also provides a vehicle, such as... Figure 3 As shown, the vehicle includes a vehicle controller 301 and multiple windows 302. Each of the multiple windows 302 is provided with a window electrochromic system 303 as shown in the previous embodiment. Each window electrochromic system 303 is connected to the vehicle controller 301 via wireless communication.

[0069] It is understandable that, in contrast to the communication module set in the window electrochromic system 303, the vehicle controller 301 can also be equipped with a corresponding vehicle communication module 3011, which is used to establish wireless communication with the communication module set in the window electrochromic system 303.

[0070] The vehicle may also include an in-vehicle infotainment screen module 304 and an audio receiver module 305, which establish a signal connection with the vehicle controller 301 and the window electrochromic system 303.

[0071] In some alternative embodiments, each of the plurality of windows 302 is provided with a window electrochromic system 303 as shown in the previous embodiment. The power supply module and control module of the window electrochromic system 303 are both located on the upper side of the window 302, thereby avoiding the impact on the window's field of vision and reducing the user's perception.

[0072] In some optional embodiments, since the window 302 is generally also provided with a printing area for the car brand logo and the window production time, and this printing area is generally located on the lower side of the window, the power supply module and control module in the window electrochromic system 303 can also be located in this printing area, thereby avoiding the impact on the window's field of vision and reducing the user's perception.

[0073] Understandably, the thickness of the window electrochromic system 303 is less than the preset thickness, so that the total thickness of the window 302 and the window electrochromic system 303 is less than the maximum accommodating thickness of the window compartment inside the door, thereby ensuring that the raising and lowering of the window 302 is not affected.

[0074] The vehicle using the method provided in this application has an electrochromic window system installed on each of its multiple windows. The power supply module and control module of the system are directly integrated into the electrochromic film. The power supply module is configured to supply power to the control module and the electrochromic film. The control module is used to control the input current and / or voltage of the electrochromic film, thereby changing the transparency of the electrochromic film. In other words, the electrochromic film has a completely independent integrated electronic control module, without the need for the traditional method of unified power supply through the vehicle battery and unified control through the vehicle-side controller. When equipping different vehicle models with the electrochromic window system, it is only necessary to match the shape of the electrochromic film to the shape of the window. There is no need for large-span wiring and complex vehicle electronic control signal matching, which reduces the matching difficulty and implementation cost when covering different vehicle models with the electrochromic window system.

[0075] This application embodiment also provides a vehicle control method, which is executed by the vehicle of the previous embodiment. Each window electrochromic system includes an audio receiving module, such as... Figure 4 As shown, the method includes the following steps.

[0076] S401, S402, S403, and S404, wherein:

[0077] In step S401, for each window electrochromic system, when the audio receiving module receives a voice input to control the electrochromic film to change color, the control module determines whether the controlled object of the voice input is the window electrochromic system where the audio receiving module is located.

[0078] In step S402, if the control module determines that the controlled object of the voice input is the car window electrochromic system where the audio receiving module is located, the control module controls the power supply module to change the current and / or voltage output to the electrochromic film according to the control command corresponding to the voice input and its own pre-stored logical relationship.

[0079] In step S403, if the control module determines that the controlled object of the voice input is not the window electrochromic system where the audio receiving module is located, the window electrochromic system reports the sound intensity of the voice input to the vehicle controller.

[0080] In step S404, after receiving the sound intensity of the voice input reported by all the window electrochromic systems, the vehicle controller sends the control command corresponding to the voice input with the strongest sound intensity to the control module of the window electrochromic system that received the voice input with the strongest sound intensity.

[0081] Understandably, the audio receiving module and the electrochromic window system can be labeled. For example, the audio receiving module and the electrochromic window system located on the left front window might both be labeled W1, the right front window W2, the left rear window W3, the right rear window W4, and so on for any additional windows. If voice input is received through the audio receiving module on the left front window (labeled W1), the control module determines whether the target of the voice input is the electrochromic window system on the left front window (also labeled W1). This is achieved through semantic and voiceprint recognition to determine whether the voice input includes "left front window" or "driver's side window." If it does, the control module considers that the target of the voice input is the electrochromic window system where the audio receiving module is located. The control module then controls the power supply module to change the current and / or voltage output to the electrochromic film based on the control command corresponding to the voice input and its pre-stored logical relationship.

[0082] Conversely, if the control module determines that the controlled object of the voice input is not the electrochromic window system where the audio receiving module is located, or if it determines through semantic and voiceprint recognition that the voice input does not contain any keywords related to "left," "right," "front," "rear," "driving," or "passenger," which could indicate the controlled object, then it means that the user has not explicitly indicated which window to control through the voice content. In this case, the sound intensity can be used to determine which window the user specifically wants to control.

[0083] The car window electrochromic system reports the intensity of the voice input to the vehicle controller.

[0084] After receiving the voice input intensity reports from all the window electrochromic systems, the vehicle controller sends the control command corresponding to the strongest voice input to the control module of the window electrochromic system that received the strongest voice input. This causes the control module to control the power supply module to change the current and / or voltage output to the electrochromic film according to the input signal control command and its pre-stored logical relationship. This causes the electrochromic film to change the actual display effects such as color, color depth, and transparency, thereby meeting the user's requirements for sun shading, privacy, and comfort.

[0085] Using this approach, for example, a user sitting on the right rear seat, closest to the right rear window, can simply say "increase transparency" if they want to increase the transparency of the right rear window, without needing to specifically specify "increase right rear window transparency." In this case, since the user is closest to the audio receiving module of the right rear window's electrochromic system, the voice input reported by the right rear window's electrochromic system will have the highest intensity among all the voice inputs reported by the electrochromic systems. This indicates that the user wants to control the right rear window, and the control command is then sent to the control module of the right rear window's electrochromic system. This improves the adaptability and triggering convenience of the solution, allowing members in different positions to independently control the color change of the nearby electrochromic film.

[0086] In some optional embodiments, the control module can also extract the voiceprint of the voice input and compare it with a pre-stored voiceprint information table to determine the user corresponding to the voiceprint of the voice input and the permissions corresponding to that user. The voiceprint information table can store the correspondence between voiceprints, users, and permissions. If it is determined that the user corresponding to the voiceprint has the highest permissions, then even if the control module determines that the controlled object of the voice input is not the window electrochromic system where the audio receiving module is located, it can send a control command to the control module of the window electrochromic system corresponding to the controlled object of the voice input through the communication module, thereby adjusting the window transparency of the controlled object that the user wants to control. That is, if it is determined that the user has the highest permissions through the voiceprint, then even if the audio receiving module receiving the voice input is located on the left front window, and the voice input is received by the audio receiving module of the left front window, but the controlled object of the voice input is the right rear window (for example, the voice content of the user is "reduce the transparency of the right rear window"), it can still completely obey the user's command and successfully control the transparency of the right rear window. Alternatively, if the system determines that the user corresponding to the voiceprint has the highest privileges, even if the voice input does not contain any keywords related to "left," "right," "front," "rear," "driving," or "passenger," which could indicate the controlled object, it will still send control commands to the control modules of all the car's electrochromic window systems via the communication module, thereby adjusting the transparency of all windows. In other words, if the user with the highest privileges says "lower transparency," the transparency of all windows can be reduced directly, without needing to determine which window to control based on sound intensity.

[0087] If it is determined that the user corresponding to the voiceprint does not have the highest level of access, then the control method described above, which determines which window to control based on the sound intensity, can be used.

[0088] Using the vehicle control method provided in this application, members in different locations can autonomously control the color of nearby electrochromic films via voice, improving the convenience and adaptability of color-changing control. Furthermore, both the power supply module and the control module are directly integrated into the electrochromic film. The power supply module is configured to supply power to both the control module and the electrochromic film, while the control module controls the input current and / or voltage of the electrochromic film, thereby changing its transparency. In other words, the electrochromic film has a completely independent, integrated electronic control module, eliminating the need for the traditional method of unified power supply via the vehicle battery and unified control via a vehicle-side controller. When equipping different vehicle models with electrochromic window systems, only the shape of the electrochromic film needs to match the shape of the window; there is no need for extensive wiring or complex vehicle electronic control signal matching, reducing the matching difficulty and implementation cost when covering different vehicle models with electrochromic window systems.

[0089] In this application, it should be understood that the terms “first”, “second”, etc., are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of technical features indicated.

[0090] Other embodiments of this application will readily occur to those skilled in the art upon consideration of the specification and practice of the invention disclosed herein. This application is intended to cover any variations, uses, or adaptations of this application that follow the general principles of this application and include common knowledge or customary techniques in the art not disclosed herein. The specification and examples are to be considered exemplary only.

[0091] It should be understood that this application is not limited to the precise structure described above and shown in the accompanying drawings, and various modifications and changes can be made without departing from its scope. The scope of this application is limited only by the appended claims.

[0092] The above is merely for the purpose of enabling those skilled in the art to understand the technical solution of this application, and is not intended to limit this application. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of this application shall be included within the protection scope of this application.

Claims

1. A car window electrochromic system, characterized in that, The system includes: Power supply module; Control module; Electrochromic film, The power supply module and the control module are both mounted on the electrochromic film. The power supply module, the control module, and the electrochromic film are electrically connected to each other. The power supply module is configured to supply power to the control module and the electrochromic film. The control module is configured to receive control commands and control the power supply module to change the current and / or voltage output to the electrochromic film according to the control commands and its pre-stored logical relationship. The electrochromic film is configured to change its transparency according to different input currents and / or voltages. The logical relationship is the correspondence between the control commands and the output signals.

2. The electrochromic window system according to claim 1, characterized in that, The system also includes a switch module mounted on the electrochromic film and powered by the power supply module. The switch module is configured to output an electrical signal based on a detected input switch operation, the electrical signal serving as the input signal of the control module.

3. The electrochromic window system according to claim 1, characterized in that, The system also includes a photosensitive module mounted on the electrochromic film and powered by the power supply module. The photosensitive module is configured to output an electrical signal based on the detected input light intensity, and the electrical signal serves as the input signal of the control module.

4. The electrochromic window system according to claim 1, characterized in that, The system also includes a communication module mounted on the electrochromic film and powered by the power supply module. The communication module is configured to output an electrical signal according to a detected input control command, the electrical signal serving as the input signal of the control module.

5. The electrochromic window system according to claim 4, characterized in that, The communication module is configured to connect to the vehicle controller via wireless communication and receive control commands forwarded by the vehicle controller via the wireless communication, wherein the control commands are output by the vehicle controller based on detected input control information.

6. The electrochromic window system according to claim 5, characterized in that, The vehicle controller is also configured to connect to an audio receiving module via a CAN bus. The audio receiving module is configured to output the control information based on the received voice input and forward the control information to the vehicle controller via the CAN bus.

7. The electrochromic window system according to claim 5, characterized in that, The vehicle controller is also configured to connect to the vehicle infotainment screen module via a CAN bus. The vehicle infotainment screen module is configured to output the control information based on the received touch input and forward the control information to the vehicle controller via the CAN bus.

8. A vehicle, characterized in that, The vehicle includes a vehicle controller and multiple windows, wherein each of the multiple windows is provided with a window electrochromic system as described in claims 1-7, and each window electrochromic system is connected to the vehicle controller via wireless communication.

9. A vehicle control method, characterized in that, The method is performed by the vehicle of claim 8, each of the said window electrochromic systems including an audio receiving module, the method comprising: For each of the aforementioned electrochromic window systems, when the audio receiving module receives a voice input controlling the electrochromic film to change color, the control module determines whether the controlled object of the voice input is the electrochromic window system where the audio receiving module is located. If the control module determines that the controlled object of the voice input is the car window electrochromic system where the audio receiving module is located, then the control module controls the power supply module to change the current and / or voltage output to the electrochromic film according to the control command corresponding to the voice input and its own pre-stored logical relationship.

10. The vehicle control method as described in claim 9, characterized in that, The method further includes: If the control module determines that the controlled object of the voice input is not the window electrochromic system where the audio receiving module is located, the window electrochromic system reports the sound intensity of the voice input to the vehicle controller. After receiving the sound intensity of all the voice inputs reported by the window electrochromic systems, the vehicle controller sends the control command corresponding to the voice input with the strongest sound intensity to the control module of the window electrochromic system that received the voice input with the strongest sound intensity.

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