Intelligent control method and system for vehicle-mounted LC dimming glass and electronic equipment

By employing capacitive and resistive sensors and intelligent control methods that perceive environmental parameters, the privacy and security issues of automotive LC dimming glass have been resolved, achieving intelligent privacy and security protection and enhancing the vehicle user experience.

CN122009062APending Publication Date: 2026-05-12CHINA FAW CO LTD
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Applications(China)
Current Assignee / Owner
CHINA FAW CO LTD
Filing Date
2026-03-10
Publication Date
2026-05-12

AI Technical Summary

Technical Problem

Existing control schemes for automotive LC dimming glass suffer from unreasonable dimming memory strategies, lack of dynamic passenger status linkage control, and absence of high-temperature environment safety protection logic, resulting in insufficient privacy protection, inadequate intelligent experience, and safety hazards.

Method used

A capacitive resistive occupancy sensor is used to detect the passenger's seating/leaving status. Combined with environmental parameters and vehicle status, intelligent control of LC dimming glass is achieved, including switching between privacy protection and security protection states, and adjusting light transmittance by utilizing changes in the state of liquid crystal molecules.

Benefits of technology

It achieves privacy protection throughout the entire vehicle startup and operation cycle, avoiding privacy leaks and high-temperature safety risks, improving the intelligent experience and security, and reducing hardware costs.

✦ Generated by Eureka AI based on patent content.

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Abstract

The invention discloses an intelligent control method and system for vehicle-mounted LC dimming glass and electronic equipment, and relates to the field of vehicle control, and the method comprises the following steps: responding to a vehicle starting request, obtaining a passenger existence state judgment result, and based on the passenger existence state judgment result, recovering historical light transmission parameters or switching to a privacy protection state; in the whole running period of the vehicle, state changes of passengers are monitored in real time, and when it is detected that the passengers break away from the corresponding areas and preset judgment conditions are met, the state is automatically switched to the privacy protection state; when the vehicle is in a non-dormant and passenger-free state, the LC dimming glass is controlled to be switched to a privacy protection state or a safety protection state in combination with the comparison result of the environment parameters and the preset threshold value, intelligent and scene-based self-adaptive adjustment of the vehicle-mounted LC dimming glass is achieved, privacy protection, use convenience and safety are considered, the structure is simple, cost is low, and the method is suitable for popularization and application. Popularization and application are facilitated.
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Description

Technical Field

[0001] This invention relates to the field of vehicle control, and in particular to an intelligent control method for automotive LC dimming glass, an intelligent control system for automotive LC dimming glass, electronic equipment, and storage medium. Background Technology

[0002] LC (Liquid Crystal Array) smart glass is a core component for achieving privacy protection and intelligent light adjustment in automotive applications. By controlling the flow of current to change the arrangement of liquid crystal molecules, it can flexibly switch between transparent and opaque states. It is currently widely used for light control in vehicle windows.

[0003] In existing technologies, such as the Chinese patent titled "Dimming Glass Controller, Dimming Glass Control System and Control Method," patent number CN105022182B, although the basic control logic of automotive LC dimming glass has been disclosed, this type of control scheme still has many defects in practical applications, making it difficult to balance privacy, security, and intelligent user experience. Specific problems are as follows:

[0004] The dimming memory strategy is poorly designed. Some solutions do not have a light transmission state memory function, requiring users to manually adjust the dimming parameters every time the vehicle is powered on, which is cumbersome and significantly reduces the intelligent experience. Although some solutions are equipped with a memory function, the light transmission state is directly restored to the last sleep state after the vehicle is started. If there are no passengers in the corresponding seat area, the glass remains transparent, which can easily lead to the leakage of privacy of the in-vehicle environment and items, creating a prominent contradiction between privacy protection and intelligent experience.

[0005] The lack of a linkage control mechanism for dynamic passenger status means that when passengers temporarily leave the seating area during vehicle operation, the existing control scheme cannot detect this change in real time. The dimming glass remains in its original light-transmitting state, which can easily lead to the exposure of items inside the vehicle and poses a privacy and security vulnerability for passengers leaving the vehicle midway.

[0006] Without safety protection logic for high-temperature environments, when the vehicle is not in a dormant state and there are no passengers inside, if the dimming glass remains transparent, direct sunlight will cause the interior temperature to rise rapidly. This will not only accelerate the aging of the interior materials and damage the vehicle's electronic equipment, but may also cause flammable items inside the vehicle to spontaneously combust, posing a significant safety hazard.

[0007] In addition, capacitive resistive occupancy sensors are commonly used detection components in vehicles, mainly used in seat belt reminder functions. They can change the output resistance value by pressure-triggered switch closure to achieve accurate and real-time detection of passenger seating status. The detection characteristics of this sensor are highly compatible with the control requirements of automotive LC dimming glass. However, the function of this type of sensor has not yet been extended to the control field of automotive LC dimming glass, resulting in the idleness of existing vehicle hardware resources and failing to provide technical support for the intelligent control of dimming glass. Summary of the Invention

[0008] In view of this, the purpose of the present invention is to provide an intelligent control method for automotive LC dimming glass, an intelligent control system for automotive LC dimming glass, an electronic device and a storage medium, in order to solve the technical problems in the prior art.

[0009] This invention provides the following solution:

[0010] According to one aspect of this application, a smart control method for automotive LC dimming glass is provided, comprising the following steps:

[0011] In response to the vehicle start request, obtain the passenger presence status determination result, and based on the passenger presence status determination result, read the historical light transmission parameters or switch to the privacy protection state;

[0012] Throughout the vehicle's operation, changes in passenger status are monitored in real time. When a passenger is detected to have left the corresponding area and the preset judgment conditions are met, the system switches to privacy protection mode.

[0013] When the vehicle is not in a dormant state and there are no passengers, the LC dimming glass is controlled to switch to privacy protection mode or security protection mode based on the comparison results of environmental parameters and preset thresholds.

[0014] The privacy protection state is when the light transmittance of the LC dimming glass is less than or equal to a first preset light transmittance threshold, and the security protection state is when the light transmittance of the LC dimming glass is greater than the first preset light transmittance threshold and less than or equal to a second preset light transmittance threshold.

[0015] Furthermore, this includes: passenger presence status is detected and determined by passenger status detection sensors preset on the vehicle seats; the sensors output detection results by detecting changes in characteristic electrical signals corresponding to passenger sitting / leaving the vehicle; and the sensors reuse the vehicle's original on-board detection sensors.

[0016] Furthermore, including:

[0017] The privacy protection state is a low transmittance state in which the liquid crystal molecules of the LC dimming glass are in a scattering state. This state is switched by outputting an adapter electrical control signal to the LC dimming glass.

[0018] Furthermore, including:

[0019] The preset judgment condition is: the passenger status detection sensor detects a characteristic electrical signal corresponding to no passenger, and the electrical signal status continues for a preset duration.

[0020] Furthermore, including:

[0021] The historical light transmittance parameters are the multi-gradient light transmittance levels of the LC dimming glass stored when the vehicle was in sleep mode. When restoring the historical light transmittance parameters, an electrical control signal matching the light transmittance level is output to the LC dimming glass.

[0022] Furthermore, including:

[0023] The vehicle's non-dormant state is determined by comprehensively analyzing the vehicle's power supply and body status signals obtained from the vehicle's on-board communication bus. The non-dormant state is a non-parking locked state in which the vehicle is powered on and has not entered the dormant state.

[0024] Furthermore, including:

[0025] The environmental parameters are the environmental perception parameters of the vehicle's exterior or interior. The preset threshold is a judgment threshold that matches the environmental perception parameters and can be customized by the user. Based on the comparison results of the environmental parameters and the preset threshold, a safety protection logic for adjusting the light transmission state of the LC dimming glass is implemented.

[0026] Furthermore, including:

[0027] When the electrical signal output by the passenger status detection sensor is in the fault characteristic range, it is determined that the sensor has a detection fault. At this time, the LC dimming glass is controlled to switch to the privacy protection state by default.

[0028] According to two aspects of this application, an intelligent control system for automotive LC dimming glass is provided, comprising:

[0029] Passenger status detection module, storage module, environmental perception module, LC dimming glass module, and main control module;

[0030] The passenger status detection module is used to detect the presence status of passengers in the corresponding area of ​​the vehicle and output a detection signal to the main control module.

[0031] A storage module, connected to the main control module, is used to store the historical light transmission parameters of the LC dimming glass module when the vehicle was in sleep mode last time.

[0032] The environmental perception module is used to collect the vehicle's environmental parameters and output them to the main control module;

[0033] The LC dimming glass module is connected to the main control module and is used to receive control commands from the main control module and adjust the light transmission state.

[0034] The main control module is connected to the vehicle's onboard bus and power management system, respectively. It is used to acquire the vehicle's start-up, running, and non-sleep status signals, receive the output signals from the passenger status detection module and the environmental perception module, retrieve the historical light transmission parameters from the storage module, execute all the steps of the aforementioned intelligent control method for onboard LC dimming glass, and output the corresponding light transmission status control command to the LC dimming glass module.

[0035] According to three aspects of this application, an electronic device is provided, comprising: a processor, a communication interface, a memory, and a communication bus, wherein the processor, the communication interface, and the memory communicate with each other through the communication bus;

[0036] The memory stores a computer program, which, when executed by a processor, causes the processor to perform steps of an intelligent control method for automotive LC dimming glass.

[0037] According to four aspects of this application, a computer-readable storage medium is provided that stores a computer program executable by an electronic device, which, when run on the electronic device, causes the electronic device to perform the steps of a smart control method for automotive LC dimming glass.

[0038] Compared with the prior art, the present invention has the following advantages:

[0039] This application utilizes a capacitive-resistive occupancy sensor to accurately and in real-time detect passenger seating / departure status, achieving deep linkage between the dimming glass state and passenger status. This fundamentally solves two major privacy issues inherent in existing technologies: first, during vehicle startup, the system determines whether to restore light transmission memory based on the presence or absence of passengers in the corresponding area, preventing privacy leaks when the transparent state is empty; second, during vehicle operation, after a passenger leaves the vehicle and preset conditions are met, the system automatically switches to an opaque state, preventing the exposure of items / spaces inside the vehicle when the passenger leaves mid-journey. This achieves intelligent privacy protection by adjusting the dimming as needed when someone is present and automatically maintaining confidentiality when no one is present, covering privacy protection needs throughout the entire vehicle startup and operation cycle.

[0040] This application integrates vehicle status recognition, passenger status detection, and ambient temperature sensing to add a high-temperature safety protection function to smart glass: when the vehicle is not in a dormant state and there are no passengers inside, and the ambient temperature is higher than a preset threshold, all smart glass is controlled to switch to an opaque state. Utilizing the light-blocking and heat-insulating properties of LC smart glass, direct sunlight is reduced, effectively lowering the risk of a rapid increase in interior temperature. This design not only prevents interior aging and damage to in-vehicle electronic equipment but also prevents flammable items inside the vehicle from spontaneously combusting due to high temperatures. It expands the function of smart glass from simple privacy protection / light adjustment to vehicle safety protection, enhancing the practical value of automotive smart glass and filling the gap in existing technologies that lack high-temperature safety protection logic. Attached Figure Description

[0041] To more clearly illustrate the specific embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the specific embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are some embodiments of the present invention. For those skilled in the art, other drawings can be obtained from these drawings without creative effort.

[0042] Figure 1 This is a flowchart of an intelligent control method for automotive LC dimming glass provided by one or more embodiments of the present invention.

[0043] Figure 2 This is an architecture diagram of an intelligent control system for automotive LC dimming glass provided by one or more embodiments of the present invention.

[0044] Figure 3 This is an electronic device structural block diagram of an intelligent control method for automotive LC dimming glass provided by one or more embodiments of the present invention. Detailed Implementation

[0045] The technical solution of the present invention will now be clearly and completely described with reference to the accompanying drawings. Obviously, the described embodiments are only some, not all, of the embodiments of the present invention. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0046] The terminology used in the embodiments of this application is for the purpose of describing particular embodiments only and is not intended to limit the application. The singular forms “a,” “said,” and “the” used in the embodiments of this application and the appended claims are also intended to include the plural forms, and “multiple” generally includes at least two unless the context clearly indicates otherwise.

[0047] It should be understood that the term "and / or" used in this article is merely a description of the relationship between related objects, indicating that three relationships can exist. For example, A and / or B can represent: A existing alone, A and B existing simultaneously, and B existing alone. Additionally, the character " / " in this article generally indicates that the preceding and following related objects have an "or" relationship.

[0048] It should be understood that although the terms first, second, third, etc., may be used in the embodiments of this application, these descriptions should not be limited to these terms. These terms are only used to distinguish the descriptions. For example, first may also be referred to as second without departing from the scope of the embodiments of this application, and similarly, second may also be referred to as first.

[0049] Depending on the context, the words “if” or “suppose” as used here can be interpreted as “when” or “in response to determination” or “in response to detection.” Similarly, depending on the context, the phrases “if determination” or “if detection (of the stated condition or event)” can be interpreted as “when determination” or “in response to determination” or “when detection (of the stated condition or event)” or “in response to detection (of the stated condition or event).”

[0050] It should also be noted that the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that an article or device that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such an article or device. Without further limitation, an element defined by the phrase "comprising one..." does not exclude the presence of other identical elements in the article or device that includes said element.

[0051] It should be noted that any symbols and / or numbers present in the specification that are not marked in the accompanying drawings are not reference numerals.

[0052] Figure 1 This is a flowchart of an intelligent control method for automotive LC dimming glass provided by one or more embodiments of the present invention.

[0053] like Figure 1 As shown, it includes the following steps:

[0054] Step S1: When the vehicle starts, based on the passenger presence status determination result, selectively restore historical light transmission parameters or switch to privacy protection mode;

[0055] Step S2: Throughout the entire vehicle operation cycle, the passenger status changes are monitored in real time. When a passenger is detected to have left the corresponding area and the preset judgment conditions are met, the system automatically switches to the privacy protection state.

[0056] Step S3: When the vehicle is not in a dormant state and there are no passengers, the LC dimming glass is controlled to switch to privacy protection state or security protection state based on the comparison results of environmental parameters and preset thresholds.

[0057] The privacy protection state is when the light transmittance of the LC dimming glass is less than or equal to a first preset light transmittance threshold, and the security protection state is when the light transmittance of the LC dimming glass is greater than the first preset light transmittance threshold and less than or equal to a second preset light transmittance threshold.

[0058] Specifically, the passenger's presence is determined by a passenger status detection sensor pre-installed on the vehicle seat. The sensor outputs the detection result by detecting changes in characteristic electrical signals corresponding to the passenger's entry into / exit from the vehicle, and the sensor reuses the vehicle's original on-board detection sensors.

[0059] In one embodiment, the privacy protection state is a low transmittance state in which the liquid crystal molecules of the LC dimming glass are in a scattering state, and this state is switched by outputting an adapter electrical control signal to the LC dimming glass.

[0060] In one embodiment, the preset determination condition is: the passenger status detection sensor detects a characteristic electrical signal corresponding to no passenger, and the electrical signal status continues for a preset duration.

[0061] In one embodiment, the historical light transmittance parameters are the multi-gradient light transmittance levels of the LC dimming glass stored when the vehicle was in sleep mode. When restoring the historical light transmittance parameters, an electrical control signal matching the light transmittance level is output to the LC dimming glass.

[0062] In one embodiment, the vehicle's non-dormant state is determined by comprehensively considering the vehicle power supply and body status signals obtained from the vehicle's on-board communication bus. The non-dormant state is a non-parking locked state in which the vehicle is powered on and has not entered the dormant state.

[0063] In one embodiment, the environmental parameters are environmental perception parameters of the vehicle's periphery or interior, and the preset threshold is a judgment threshold that matches the environmental perception parameters and can be customized by the user; based on the comparison results of the environmental parameters and the preset threshold, a safety protection logic for adjusting the differentiated light transmission state of the LC dimming glass is executed.

[0064] In one embodiment, when the electrical signal output by the passenger status detection sensor is in the fault characteristic range, it is determined that the sensor has a detection fault, and at this time the LC dimming glass is controlled to switch to the privacy protection state by default.

[0065] Specifically, when the vehicle starts, it can automatically restore historical light transmission parameters or enter privacy protection mode based on the presence of passengers, without manual operation; during vehicle operation, it monitors the passenger status in real time and automatically switches to privacy protection when conditions are met, taking into account usage habits and in-vehicle privacy, thereby improving ease of use and comfort.

[0066] When the vehicle is not in sleep mode and there are no passengers, the system combines environmental parameters and preset thresholds to achieve differentiated adjustment of privacy protection and security protection, effectively preventing privacy leaks inside the vehicle and reducing the impact of environmental factors on in-vehicle equipment and items; when a sensor malfunctions, it defaults to privacy protection mode, which has fault redundancy protection and improves the reliability of system operation.

[0067] Passenger status detection reuses the vehicle's existing onboard detection sensors, eliminating the need for new dedicated detection devices, reducing hardware costs and the difficulty of vehicle layout, and has strong system integration, which is conducive to the promotion and application of the whole vehicle.

[0068] By setting preset judgment conditions, customizing environmental thresholds, and controlling multiple gradient light transmittance levels, it can achieve precise adjustment of light transmittance, adapt to different usage scenarios and user habits, and has stable and reliable control logic with rapid response. It is suitable for various automotive LC dimming glass control scenarios.

[0069] Figure 2 This is an architecture diagram of an intelligent control system for automotive LC dimming glass provided by one or more embodiments of the present invention.

[0070] like Figure 2 As shown, it includes:

[0071] Passenger status detection module, storage module, environmental perception module, LC dimming glass module, and main control module;

[0072] The passenger status detection module is used to detect the presence status of passengers in the corresponding area of ​​the vehicle and output a detection signal to the main control module.

[0073] A storage module, connected to the main control module, is used to store the historical light transmission parameters of the LC dimming glass module when the vehicle was in sleep mode last time.

[0074] The environmental perception module is used to collect the vehicle's environmental parameters and output them to the main control module;

[0075] The LC dimming glass module is connected to the main control module and is used to receive control commands from the main control module and adjust the light transmission state.

[0076] The main control module is connected to the vehicle's onboard bus and power management system, respectively. It is used to acquire the vehicle's start-up, running, and non-sleep status signals, receive the output signals from the passenger status detection module and the environmental perception module, retrieve the historical light transmission parameters from the storage module, execute all the steps of the aforementioned intelligent control method for onboard LC dimming glass, and output the corresponding light transmission status control command to the LC dimming glass module.

[0077] It is worth noting that although only some basic functional modules are disclosed in this embodiment, it does not mean that the composition of this system is limited to the above-mentioned basic functional modules. On the contrary, what this embodiment intends to express is that, based on the above-mentioned basic functional modules, those skilled in the art can arbitrarily add one or more functional modules in combination with existing technology to form an infinite number of embodiments or technical solutions. That is to say, this system is open rather than closed. The fact that this embodiment only discloses a few basic functional modules does not mean that the scope of protection of the claims of this invention is limited to the disclosed basic functional modules. At the same time, for the convenience of description, the above device is described separately according to its functions as various units and modules. Of course, in implementing this invention, the functions of each unit and module can be implemented in one or more software and / or hardware.

[0078] The device embodiments described above are merely illustrative. The units described as separate components may or may not be physically separate, and the components shown as units may or may not be physical units; that is, they may be located in one place or distributed across multiple network units. Some or all of the modules can be selected to achieve the purpose of this embodiment according to actual needs. Those skilled in the art can understand and implement this without any creative effort.

[0079] In one embodiment, the vehicle startup phase initialization involves the following steps: After the vehicle is powered on and started, the control system reads the light transmittance data of the LC dimming glass from the storage module, which was stored during the last time the vehicle was in sleep mode. Simultaneously, a capacitive-resistive occupancy sensor installed on the corresponding seat detects whether a passenger is seated in that area.

[0080] If a passenger is detected, the LC dimming glass is controlled to return to the light transmittance level corresponding to the memory data;

[0081] If no passengers are detected, the LC dimming glass will be switched to an opaque state.

[0082] Dynamic adjustment during vehicle operation: During vehicle movement or stationary operation, the occupancy sensor monitors the passenger status of the corresponding seat in real time; when it detects that the passenger in the original seat has left (i.e., the sensor output resistance returns to the initial state and continues for a preset time), the LC dimming glass in the corresponding area is automatically adjusted to the lowest light transmittance opaque state.

[0083] Safety protection when the vehicle is not in sleep mode: When the vehicle is in a non-sleep mode (including but not limited to unlocked vehicle, key removed but power not turned off, short-term absence without engine shutdown, etc.), and the occupancy sensor detects that there are no passengers in the vehicle:

[0084] If the vehicle's ambient temperature sensor detects that the ambient temperature is higher than a preset threshold, the control system will control all LC dimming glass to switch to an opaque state.

[0085] If the ambient temperature is lower than or equal to the preset threshold, the current state can be maintained or the state can be switched to opaque (selected according to the user's preset mode).

[0086] Optimized privacy protection strategy: By dynamically sensing passenger status through occupancy sensors, the privacy leakage problem of the vehicle reverting to a transparent state when there are no passengers when it starts, as well as the privacy exposure risk when passengers leave the vehicle midway, can be solved. This enables intelligent control that adjusts the lighting as needed when there are passengers and automatically keeps the vehicle confidential when there are no passengers.

[0087] Enhanced ease of operation and intelligence: While retaining the light transmittance level memory function, invalid memory recovery is avoided by judging passenger status, reducing the frequency of manual adjustment by users and improving the intelligent experience of the vehicle.

[0088] Enhanced safety protection in high-temperature environments: Utilizing the light-blocking and heat-insulating properties of LC dimming glass, it automatically switches to an opaque state when the vehicle is not in sleep mode and is unoccupied, reducing direct sunlight and lowering the risk of rapid temperature rise inside the vehicle, thus protecting items inside the vehicle and the vehicle's safety.

[0089] Reuse existing hardware resources: Extend the application of the vehicle's original occupancy sensor (used for seat belt reminder) to dimming control without adding a lot of extra hardware costs, making it easy to industrialize and implement.

[0090] Figure 3 This is an electronic device structural block diagram of an intelligent control method for automotive LC dimming glass provided by one or more embodiments of the present invention.

[0091] like Figure 3 As shown, this application provides an electronic device, including: a processor, a communication interface, a memory, and a communication bus, wherein the processor, the communication interface, and the memory communicate with each other through the communication bus;

[0092] The memory stores a computer program, which, when executed by the processor, causes the processor to perform the steps of an intelligent control method for automotive LC dimming glass.

[0093] This application also provides a computer-readable storage medium storing a computer program executable by an electronic device, which, when run on the electronic device, causes the electronic device to perform the steps of a smart control method for automotive LC dimming glass.

[0094] For the sake of simplicity, the method embodiments are described as a series of actions. However, those skilled in the art should understand that the embodiments of the present invention are not limited to the described order of actions, because according to the embodiments of the present invention, some steps can be performed in other orders or simultaneously. Furthermore, those skilled in the art should also understand that the embodiments described in the specification are preferred embodiments, and the actions involved are not necessarily essential to the embodiments of the present invention.

[0095] As can be seen from the above description of the embodiments, those skilled in the art can clearly understand that this application can be implemented by means of software plus necessary general-purpose hardware platforms. 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 storage medium, such as ROM / RAM, magnetic disk, optical disk, etc., and includes several instructions to cause a computer device (which may be a personal computer, server, or network device, etc.) to execute the methods described in various embodiments or some parts of the embodiments of this application.

[0096] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of the present invention, and not to limit them; although the present invention has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that modifications can still be made to the technical solutions described in the foregoing embodiments, or equivalent substitutions can be made to some or all of the technical features; and these modifications or substitutions do not cause the essence of the corresponding technical solutions to deviate from the scope of the technical solutions of the embodiments of the present invention.

Claims

1. A smart control method for automotive LC dimming glass, characterized in that, Includes the following steps: In response to the vehicle start request, obtain the passenger presence status determination result, and based on the passenger presence status determination result, read the historical light transmission parameters or switch to the privacy protection state; Throughout the vehicle's operation, changes in passenger status are monitored in real time. When a passenger is detected to have left the corresponding area and the preset judgment conditions are met, the system switches to privacy protection mode. When the vehicle is not in a dormant state and there are no passengers, the LC dimming glass is controlled to switch to privacy protection mode or security protection mode based on the comparison results of environmental parameters and preset thresholds. The privacy protection state is when the light transmittance of the LC dimming glass is less than or equal to a first preset light transmittance threshold, and the security protection state is when the light transmittance of the LC dimming glass is greater than the first preset light transmittance threshold and less than or equal to a second preset light transmittance threshold.

2. The intelligent control method for automotive LC dimming glass according to claim 1, characterized in that, include: The passenger's presence status is detected and determined by a passenger status detection sensor preset in the vehicle seat. The passenger status detection sensor detects changes in characteristic electrical signals corresponding to a passenger's seating and departure from the vehicle, and outputs a passenger presence status detection result.

3. The intelligent control method for automotive LC dimming glass according to claim 1, characterized in that, include: The privacy protection state is a low transmittance state in which the liquid crystal molecules of the LC dimming glass are in a scattering state; the privacy protection state is switched by outputting an adapter electrical control signal to the LC dimming glass.

4. The intelligent control method for automotive LC dimming glass according to claim 1, characterized in that, include: The preset determination condition is: the passenger status detection sensor detects a characteristic electrical signal corresponding to no passenger, and the no-passenger characteristic electrical signal state lasts for a preset duration.

5. The intelligent control method for automotive LC dimming glass according to claim 1, characterized in that, include: The historical light transmittance parameters are the LC dimming glass multi-gradient light transmittance levels stored when the vehicle was in sleep mode last time; Restoring historical light transmission parameters is achieved by outputting an electrical control signal to the LC dimming glass that matches the light transmission level.

6. The intelligent control method for automotive LC dimming glass according to claim 1, characterized in that, include: The determination of the vehicle's non-dormant and passenger-free status is made by comprehensively analyzing the vehicle's power supply and body status signals obtained through the vehicle's on-board communication bus. The "not in hibernation and no passenger" state refers to a non-parking locked state where the vehicle is powered on and has not entered hibernation mode.

7. The intelligent control method for automotive LC dimming glass according to claim 1, characterized in that, include: The environmental parameters are environmental sensing parameters of the vehicle's exterior or interior. The preset threshold is a judgment threshold that matches the environmental perception parameters; Based on the comparison results between environmental parameters and preset thresholds, a safety protection logic is implemented to adjust the light transmission state of the LC dimming glass in a differentiated manner.

8. An intelligent control system for automotive LC dimming glass, characterized in that, include: Passenger status detection module, storage module, environmental perception module, LC dimming glass module, and main control module; The passenger status detection module is used to detect the presence status of passengers in the corresponding area of ​​the vehicle and output a detection signal to the main control module; The storage module is connected to the main control module and is used to store the historical light transmission parameters of the LC dimming glass module when the vehicle was in sleep mode last time. The environmental perception module is used to collect the vehicle's environmental parameters and output them to the main control module; The LC dimming glass module is connected to the main control module and is used to receive control commands from the main control module and adjust the light transmission state. The main control module is connected to the vehicle's onboard bus and power management system, respectively. It is used to acquire the vehicle's start-up, running, and non-sleep status signals, receive the output signals of the passenger status detection module and the environmental perception module, retrieve the historical light transmission parameters of the storage module, execute all the steps of the aforementioned intelligent control method for vehicle-mounted LC dimming glass, and output the corresponding light transmission status control command to the LC dimming glass module.

9. An electronic device, characterized in that, include: The processor, communication interface, memory, and communication bus are connected, with the processor, communication interface, and memory communicating with each other via the communication bus. The memory stores a computer program, which, when executed by the processor, causes the processor to perform the steps of the intelligent control method for automotive LC dimming glass according to any one of claims 1-7.

10. A computer-readable storage medium, characterized in that, It stores a computer program executable by an electronic device, which, when run on the electronic device, causes the electronic device to perform the steps of the intelligent control method for an in-vehicle LC dimming glass as described in any one of claims 1-7.