Dimmable glass system used in vehicles and its control method

Abstract

The present invention provides a dimmable glass system for use in vehicles and a control method thereof. The dimmable glass system comprises dimmable glass installed in the vehicle. The control method includes acquiring light intensity change information, the light intensity change information including at least one of a change in light intensity value and a rate of change in light intensity, and, in response to the light intensity change information satisfying predetermined conditions, performing an adjustment to the light transmittance of the dimmable glass based on transmittance adjustment information, wherein the transmittance adjustment information includes adjusting at least one of the magnitude and rate of change of the light transmittance of the dimmable glass.

Description

[Technical Field]

[0001] This disclosure relates to the field of controllable dimming technology, and more particularly to dimming glass systems and control methods for use in vehicles. [Background technology]

[0002] Dimmable glass, also known as atomized glass, electrically controlled glass, or smart dimmable glass, can change its light transmittance by adjusting the input electrical signal. With technological advancements, dimmable glass is beginning to be used in fields such as automobiles, trains, and building curtain walls.

[0003] Dimmable glass can switch its light transmittance, or in other words, its transparency, in response to environmental changes. Adaptively adjusting the transparency of dimmable glass in response to environmental changes and user needs is a theme that research and development personnel are always focusing on.

[0004] The information disclosed in this section is used solely to understand the context of the invention of this disclosure, and therefore may include information that does not constitute prior art. [Overview of the Initiative]

[0005] On the one hand, the present invention provides a control method for a dimmable glass system used in a vehicle, wherein the dimmable glass system comprises dimmable glass attached to the vehicle, and the control method includes acquiring light intensity change information, wherein the light intensity change information includes at least one of a change in light intensity value and a rate of change in light intensity, and in response to the light intensity change information satisfying predetermined conditions, the control method includes performing an adjustment on the light transmittance of the dimmable glass based on transmittance adjustment information, wherein the transmittance adjustment information includes adjusting at least one of the magnitude and rate of change of the light transmittance of the dimmable glass.

[0006] According to some exemplary embodiments, the control method further includes determining the transmittance adjustment information according to a first mapping relationship between predetermined luminosity change information and light transmittance adjustment information in response to the luminosity change information satisfying predetermined conditions, wherein the determined transmittance adjustment information corresponds to the luminosity change information that satisfies predetermined conditions in the first mapping relationship.

[0007] According to some exemplary embodiments, adjusting the light transmittance of the dimmable glass includes adjusting the light transmittance of the dimmable glass by adjusting an electrical signal applied to the dimmable glass, wherein the adjustment includes adjusting the electrical signal based on electrical signal adjustment information.

[0008] According to some exemplary embodiments, the electrical signal adjustment information includes adjusting at least one of the amplitude and switching speed of the electrical signal applied to the dimmable glass.

[0009] According to some exemplary embodiments, the control method further includes determining the electrical signal adjustment information according to a second mapping relationship between predetermined luminous intensity change information and electrical signal adjustment information in response to the luminous intensity change information satisfying predetermined conditions, wherein the determined electrical signal adjustment information corresponds to the luminous intensity change information that satisfies predetermined conditions in the second mapping relationship.

[0010] According to some exemplary embodiments, the luminosity change information satisfying a predetermined condition includes the absolute value of the difference between the detected actual luminosity value and the predetermined luminosity value exceeding a first predetermined luminosity difference threshold.

[0011] According to some exemplary embodiments, the luminosity change information satisfying a predetermined condition includes the absolute value of the difference between the actual luminosity values ​​detected at two time points exceeding a second predetermined luminosity difference threshold.

[0012] According to some exemplary embodiments, the luminosity change information satisfying a predetermined condition includes the luminosity change rate exceeding a predetermined luminosity change rate threshold.

[0013] According to some exemplary embodiments, performing an adjustment to the light transmittance of the dimmable glass based on transmittance adjustment information in response to the luminous intensity change information satisfying a predetermined condition specifically includes reducing the light transmittance of the dimmable glass in response to the luminous intensity increase information satisfying a predetermined condition.

[0014] According to some exemplary embodiments, performing an adjustment to the light transmittance of the dimmable glass based on transmittance adjustment information in response to the luminous intensity change information satisfying a predetermined condition specifically includes increasing the light transmittance of the dimmable glass in response to the luminous intensity decrease information satisfying a predetermined condition.

[0015] According to some exemplary embodiments, performing an adjustment to the light transmittance of the dimmable glass based on transmittance adjustment information in response to the luminous intensity change information satisfying a predetermined condition specifically includes increasing the light transmittance of the dimmable glass in response to the luminous intensity increase information satisfying a predetermined condition.

[0016] According to some exemplary embodiments, the rate of change of light intensity exceeds a predetermined threshold during a continuous period of time, the continuous period of time includes a start time and an end time, there is a time between the start time and the end time when the rate of change of light intensity is greatest, the rate of change of light intensity at the time when the rate of change of light intensity is greatest is the maximum value of the rate of change of light intensity during the continuous period of time, and the start adjustment time for performing adjustments to the electrical signal applied to the dimmable glass is one time selected from the start time, the time when the rate of change of light intensity is greatest, and the end time.

[0017] According to some exemplary embodiments, performing adjustment on the electrical signal applied to the dimming glass includes adjusting the electrical signal applied to the dimming glass at a constant switching speed.

[0018] According to some exemplary embodiments, performing adjustment on the electrical signal applied to the dimming glass includes adjusting the electrical signal applied to the dimming glass at a first constant switching speed in response to the light intensity increase information satisfying a predetermined condition, and adjusting the electrical signal applied to the dimming glass at a second constant switching speed in response to the light intensity decrease information satisfying a predetermined condition.

[0019] According to some exemplary embodiments, the second constant switching speed is smaller than the first constant switching speed.

[0020] According to some exemplary embodiments, performing adjustment on the electrical signal applied to the dimming glass includes adjusting the electrical signal applied to the dimming glass at a variable switching speed.

[0021] According to some exemplary embodiments, obtaining the light intensity change information includes obtaining the light intensity change speed, determining the electrical signal adjustment information according to the second mapping relationship between the predetermined light intensity change information and the electrical signal adjustment information includes determining the switching speed of the electrical signal according to the second mapping relationship between the predetermined light intensity change information and the electrical signal adjustment information, the determined switching speed of the electrical signal corresponds to the light intensity change speed in the second mapping relationship, and performing adjustment on the electrical signal applied to the dimming glass includes performing adjustment on the electrical signal applied to the dimming glass based on the determined switching speed of the electrical signal.

[0022] According to some exemplary embodiments, obtaining the light intensity change information includes obtaining the light intensity change information during the process that the vehicle passes through the entrance of the enclosed space.

[0023] According to some exemplary embodiments, that the photometric change information satisfies a predetermined condition includes that an actual photometric value detected outside the sealed space is higher than a first predetermined photometric threshold value, and / or that an actual photometric value detected inside the sealed space is lower than a second predetermined photometric threshold value.

[0024] According to some exemplary embodiments, acquiring the photometric change information includes acquiring photometric change information in a process that the vehicle passes through an exit of the sealed space.

[0025] According to some exemplary embodiments, that the photometric change information satisfies a predetermined condition includes that an actual photometric value detected inside the sealed space is lower than a third predetermined photometric threshold value, and / or that an actual photometric value detected outside the sealed space is higher than a fourth predetermined photometric threshold value.

[0026] According to some exemplary embodiments, the method further includes acquiring position information of the vehicle, and performing pre-adjustment on an electric signal applied to the dimming glass based on the acquired position information to perform pre-adjustment on the light transmittance of the dimming glass.

[0027] According to some exemplary embodiments, performing pre-adjustment on an electric signal applied to the dimming glass based on the acquired position information specifically includes performing pre-adjustment on the electric signal applied to the dimming glass at a constant switching speed in a process that the vehicle passes through an entrance or an exit of the sealed space.

[0028] According to some exemplary embodiments, performing pre-adjustment on an electric signal applied to the dimming glass based on the acquired position information specifically includes performing pre-adjustment on the electric signal applied to the dimming glass at a variable switching speed in a process that the vehicle passes through an entrance or an exit of the sealed space, and the variable switching speed is determined based on the speed of the vehicle.

[0029] According to some exemplary embodiments, adjusting the electrical signal applied to the dimmable glass includes adjusting the switching speed of the electrical signal applied to the dimmable glass based on acquired position information.

[0030] According to some exemplary embodiments, adjusting the switching speed of the electrical signal applied to the dimmable glass in accordance with the acquired position information specifically includes adjusting the switching speed of the electrical signal to a first switching speed, where the first switching speed is higher than a predetermined switching speed, as the vehicle passes through the entrance to a sealed space.

[0031] According to some exemplary embodiments, adjusting the switching speed of the electrical signal applied to the dimmable glass in accordance with the acquired position information specifically includes adjusting the switching speed of the electrical signal to a second switching speed, where the second switching speed is lower than a predetermined switching speed, as the vehicle passes through the exit of a sealed space.

[0032] According to some exemplary embodiments, adjusting the switching speed of the electrical signal applied to the dimmable glass in accordance with the acquired location information specifically includes adjusting the switching speed of the electrical signal to a third switching speed, where the third switching speed is lower than a predetermined switching speed, and the first environment is a familiar environment to the vehicle user, and / or adjusting the switching speed of the electrical signal to a fourth switching speed, where the fourth switching speed is higher than a predetermined switching speed, and the second environment is an unfamiliar environment to the vehicle user, when the vehicle is in a second environment and the vehicle user is leaving the vehicle.

[0033] According to some exemplary embodiments, adjusting the electrical signal applied to the dimmable glass includes adjusting the switching speed of the electrical signal applied to the dimmable glass in accordance with the vehicle speed while the vehicle is in operation, wherein the switching speed of the electrical signal is inversely proportional to the vehicle speed.

[0034] According to some exemplary embodiments, performing adjustments to the electrical signal applied to the dimmable glass includes adjusting the switching speed of the electrical signal applied to the dimmable glass for different regions of the same dimmable glass.

[0035] According to some exemplary embodiments, the dimmable glass includes a side windshield located on the driver's side of the vehicle, and adjusting the switching speed of the electrical signal applied to the dimmable glass for different regions of the same dimmable glass specifically includes adjusting the switching speed of the electrical signal applied to the side windshield for each region such that the switching speed of a portion of the side windshield located on the front side is smaller than the switching speed of a portion of the side windshield located on the rear side.

[0036] According to some exemplary embodiments, the dimmable glass includes a sunroof glass located on the upper side of the vehicle, and adjusting the switching speed of the electrical signal applied to the dimmable glass region by region for different areas of the same dimmable glass specifically includes adjusting the switching speed of the electrical signal applied to the sunroof glass region by region such that the switching speed of one portion of the sunroof glass is different from the switching speed of another portion of the sunroof glass.

[0037] According to some exemplary embodiments, the dimmable glass includes the front windshield, rear windshield, sunroof glass, sun visors, and all side windshields of the vehicle, and the adjustment of the light transmittance of the dimmable glass is performed by adjusting the electrical signal applied to the dimmable glass, specifically,

[0038] This includes adjusting the electrical signal applied to at least one of the front windshield, rear windshield, sunroof glass, sun visor, and all side windshields of the vehicle, thereby adjusting the light transmittance of at least one of the front windshield, rear windshield, sunroof glass, sun visor, and all side windshields of the vehicle.

[0039] According to some exemplary embodiments, a control method for a dimmable glass system used in a vehicle, wherein the dimmable glass system comprises dimmable glass mounted on the vehicle, the control method acquires at least one of luminous intensity change information and vehicle position change information, the luminous intensity change information includes at least one of luminous intensity value change and luminous intensity change rate, and in response to the luminous intensity change information satisfying a first predetermined condition and / or the vehicle position change information satisfying a first position condition, the control method performs a first adjustment on the light transmittance of the dimmable glass, the first adjustment is first transmittance adjustment information The method includes performing an adjustment to the light transmittance of the dimmable glass based on the first adjustment to the light transmittance information of the dimmable glass, and after performing a first adjustment to the light transmittance information of the dimmable glass, performing a second adjustment to the light transmittance information of the dimmable glass in response to the light intensity change information satisfying a second predetermined condition, wherein the second adjustment includes performing an adjustment to the light transmittance of the dimmable glass based on the second transmittance adjustment information, where the first transmittance adjustment information and the second transmittance adjustment information each include adjusting at least one of the magnitude and rate of change of the light transmittance of the dimmable glass.

[0040] According to some exemplary embodiments, the control method further includes performing a second adjustment on the light transmittance information of the dimmable glass, and then performing a third adjustment on the light transmittance information of the dimmable glass in response to the luminous intensity change information satisfying a third predetermined condition and / or the vehicle position change information satisfying a second position condition, wherein the third adjustment includes performing an adjustment on the light transmittance of the dimmable glass based on third transmittance adjustment information, the third transmittance adjustment information includes adjusting at least one of the magnitude and rate of change of the light transmittance of the dimmable glass.

[0041] According to some exemplary embodiments, the control method further includes performing a third adjustment on the light transmittance information of the dimmable glass, and then performing a fourth adjustment on the light transmittance information of the dimmable glass in response to the luminous intensity change information satisfying the fourth predetermined condition, wherein the fourth adjustment includes performing an adjustment on the light transmittance of the dimmable glass based on fourth transmittance adjustment information, and the fourth transmittance adjustment information includes adjusting at least one of the magnitude and rate of change of the light transmittance of the dimmable glass.

[0042] According to some exemplary embodiments, the control method further determines the first transmittance adjustment information according to a first mapping relationship between predetermined luminosity change information and light transmittance adjustment information in response to the luminosity change information satisfying a first predetermined condition, where the first transmittance adjustment information corresponds to the luminosity change information that satisfies a first predetermined condition in the first mapping relationship, and / or determines the second transmittance adjustment information according to a first mapping relationship between predetermined luminosity change information and light transmittance adjustment information in response to the luminosity change information satisfying a second predetermined condition, where the second transmittance adjustment information corresponds to the luminosity change information that satisfies a second predetermined condition in the first mapping relationship. The process includes determining the third transmittance adjustment information according to a first mapping relationship between predetermined luminosity change information and light transmittance adjustment information, in response to the luminosity change information satisfying a third predetermined condition, wherein the third transmittance adjustment information corresponds to the luminosity change information that satisfies the third predetermined condition in the first mapping relationship, and / or determining the fourth transmittance adjustment information according to a first mapping relationship between predetermined luminosity change information and light transmittance adjustment information, in response to the luminosity change information satisfying a fourth predetermined condition, wherein the fourth transmittance adjustment information corresponds to the luminosity change information that satisfies the fourth predetermined condition in the first mapping relationship.

[0043] According to some exemplary embodiments, performing a first adjustment to the light transmittance of the dimmable glass is performed by performing a first adjustment to the electrical signal applied to the dimmable glass, wherein the first adjustment includes adjusting the electrical signal based on first electrical signal adjustment information, and / or performing a second adjustment to the light transmittance of the dimmable glass is performed by performing a second adjustment to the electrical signal applied to the dimmable glass, wherein the second adjustment includes adjusting the electrical signal based on second electrical signal adjustment information. The third adjustment to the light transmittance of the dimmable glass includes performing a third adjustment to the light transmittance of the dimmable glass by performing a third adjustment to the electrical signal applied to the dimmable glass, wherein the third adjustment includes adjusting the electrical signal based on third electrical signal adjustment information, and / or the fourth adjustment to the light transmittance of the dimmable glass includes performing a fourth adjustment to the light transmittance of the dimmable glass by performing a fourth adjustment to the electrical signal applied to the dimmable glass, wherein the fourth adjustment includes adjusting the electrical signal based on fourth electrical signal adjustment information.

[0044] According to some exemplary embodiments, each of the first electrical signal adjustment information, the second electrical signal adjustment information, the third electrical signal adjustment information, and the fourth electrical signal adjustment information includes adjusting at least one of the amplitude and switching speed of the electrical signal applied to the dimmable glass.

[0045] According to some exemplary embodiments, the control method further determines the first electrical signal adjustment information according to a second mapping relationship between predetermined luminous intensity change information and electrical signal adjustment information in response to the luminous intensity change information satisfying a first predetermined condition, wherein the first electrical signal adjustment information corresponds to the luminous intensity change information that satisfies the first predetermined condition in the second mapping relationship, and / or determines the second electrical signal adjustment information according to a second mapping relationship between predetermined luminous intensity change information and electrical signal adjustment information in response to the luminous intensity change information satisfying a second predetermined condition, wherein the second electrical signal adjustment information corresponds to the luminous intensity change information that satisfies a second predetermined condition in the second mapping relationship. The process includes determining the third electrical signal adjustment information according to a second mapping relationship between predetermined luminous intensity change information and electrical signal adjustment information, in response to the information and / or the luminous intensity change information satisfying a third predetermined condition, wherein the third electrical signal adjustment information corresponds to the luminous intensity change information that satisfies the third predetermined condition in the second mapping relationship, and / or determining the fourth electrical signal adjustment information according to a second mapping relationship between predetermined luminous intensity change information and electrical signal adjustment information, in response to the luminous intensity change information satisfying a fourth predetermined condition, wherein the fourth electrical signal adjustment information corresponds to the luminous intensity change information that satisfies the fourth predetermined condition in the second mapping relationship.

[0046] According to some exemplary embodiments, the control method further includes determining the first transmittance adjustment information in accordance with a third mapping relationship between predetermined vehicle position change information and light transmittance adjustment information in response to the vehicle position change information satisfying a first position condition, wherein the first transmittance adjustment information corresponds to the vehicle position change information that satisfies the first position condition in the third mapping relationship, and / or determining the third transmittance adjustment information in accordance with a third mapping relationship between predetermined vehicle position change information and light transmittance adjustment information in response to the vehicle position change information satisfying a second position condition, wherein the third transmittance adjustment information corresponds to the vehicle position change information that satisfies the second position condition in the third mapping relationship.

[0047] According to some exemplary embodiments, the vehicle position change information satisfies a first position condition which includes the vehicle being outside the enclosed space and the distance between the vehicle and the entrance to the enclosed space being less than or equal to a first predetermined distance, and / or the vehicle position change information satisfies a second position condition which includes the vehicle being inside the enclosed space and the distance between the vehicle and the exit to the enclosed space being less than or equal to a second predetermined distance.

[0048] In another aspect, a control method for a dimmable glass system used in a vehicle is provided, the dimmable glass system comprising dimmable glass mounted on the vehicle, the control method comprising: acquiring luminous intensity via a detector mounted on the vehicle; determining luminous intensity change information using the acquired luminous intensity as input; comparing the luminous intensity change information with a preset luminous intensity change threshold; the luminous intensity change information including at least one of a change in luminous intensity value and a rate of change in luminous intensity; outputting a control command in response to the luminous intensity change information satisfying a predetermined condition; the control command performing an adjustment to the light transmittance of the dimmable glass based on transmittance adjustment information, the transmittance adjustment information including adjusting at least one of the magnitude and rate of change of the light transmittance of the dimmable glass.

[0049] According to some exemplary embodiments, the control method further includes acquiring location information of the vehicle, wherein the input further includes acquired location information.

[0050] In another area, the present invention provides a dimmable glass system for use in a vehicle, the dimmable glass system being a dimmable glass mounted on a vehicle, comprising: a first base substrate and a second base substrate arranged opposite to each other; a first electrode disposed on the first base substrate; a second electrode disposed on the second base substrate; a dimmable component sandwiched between the first base substrate and the second base substrate; and a controller electrically connected to the first electrode and the second electrode of the dimmable glass, wherein the controller is configured to perform the control method described in any one of claims 1 to 44.

[0051] Other purposes and benefits of this disclosure will become apparent from the following description of this disclosure, with reference to the accompanying drawings, and will help in a full understanding of this disclosure. [Brief explanation of the drawing]

[0052] [Figure 1] Figure 1 is a schematic plan view of dimmable glass according to some exemplary embodiments of the present disclosure. [Figure 2] Figure 2 is a cross-sectional view of a dimmable glass according to some exemplary embodiments of the present disclosure, along line A-A' in Figure 1. [Figure 3] Figure 3 schematically shows the effect of illuminance on luminous efficiency. [Figure 4] Figure 4 is a schematic diagram of a dimmable glass system used in a vehicle according to an exemplary embodiment of the present disclosure. [Figure 5] Figure 5 is a flowchart illustrating a control method for a dimmable glass system according to some exemplary embodiments of the present disclosure. [Figure 6] Figures 6A and 6B schematically illustrate various specific scenarios in which the dimming glass control method according to embodiments of the present disclosure is applied, with Figure 6A schematically illustrating a scenario in which a vehicle enters and exits a confined space such as a tunnel or parking lot during the daytime, and Figure 6B schematically illustrating a scenario in which a vehicle enters and exits a confined space such as a tunnel or parking lot at night. [Figure 7] Figures 7A and 7B are schematic diagrams showing the temporal change of the electrical signal applied to the dimmable glass. [Figure 8] Figure 8 shows the actual light intensity-time curve graph. [Figure 9] Figure 9 schematically shows the rate-time curve of change in luminosity. [Figure 10] Figure 10 is a comparison diagram of the actual rate of change in luminous intensity in the light intensity-time curve and a predetermined threshold rate of change in luminous intensity. [Figure 11] Figure 11 is a flowchart of a control method for a dimmable glass system according to another exemplary embodiment of the present disclosure. [Figure 12]Figure 12 is a specific application diagram of a control method according to some exemplary embodiments of the present disclosure. [Figure 13] Figure 13 is a flowchart illustrating a method for controlling a dimmable glass system according to some further exemplary embodiments of the present disclosure. [Figure 14] Figure 14 is a specific application diagram of a control method according to some further exemplary embodiments of the present disclosure. [Figure 15] Figure 15 is a schematic diagram of a dimmable glass system applied to a vehicle according to an embodiment of the present disclosure. [Figure 16] Figure 16 is a schematic diagram of the structure of the dimmable glass in the dimmable glass system according to an embodiment of the present disclosure. [Figure 17] Figure 17 is a flowchart illustrating a method for controlling a dimmable glass system according to some further exemplary embodiments of the present disclosure. [Modes for carrying out the invention]

[0053] It should be noted that, for clarity, the sizes of layers, structures, or areas in the drawings used to illustrate embodiments of the present invention may be enlarged or reduced; in other words, these drawings are not drawn to actual scale.

[0054] The technical invention of this disclosure is described more specifically below through embodiments and in conjunction with the accompanying drawings. In this specification, the same or similar figure numbers indicate the same or similar components. The following description of embodiments of this disclosure with reference to the accompanying drawings is intended to illustrate the overall inventive concept of this disclosure and is not intended to limit this disclosure.

[0055] Furthermore, the following detailed description includes many specific details for the sake of clarity and to provide a comprehensive understanding of the embodiments of this disclosure. However, it is clear that one or more embodiments can be carried out even without these specific details.

[0056] Here, terms such as "first," "second," etc., may be used to describe different elements, but it should be understood that these elements should not be limited by these terms. These terms are used solely to distinguish one element from another. For example, without departing from the scope of the exemplary embodiment, the first element may be referred to as the second element, and similarly, the second element may be referred to as the first element. In this specification, the term "and / or" includes any combination and any combination of one or more related enumeration items.

[0057] The terms used herein are for the sole purpose of describing specific embodiments and are not intended to limit the exemplary embodiments. The singular form used herein includes the plural form unless otherwise explicitly stated in the context. Furthermore, where the terms “includes” and / or “compose” are used herein, they indicate the presence of the described features, wholes, steps, actions, elements, and / or components, and do not preclude the presence or addition of one or more other features, wholes, steps, actions, elements, components, and / or combinations thereof.

[0058] In this specification, unless otherwise specified, the term "enclosed space" means a space enclosed by a top and surrounding sides. In a vehicle operating environment, an enclosed space typically has a pre-designed entrance for the vehicle to enter and an exit for the vehicle to exit. For example, in a vehicle operating environment, an enclosed space may include an underground parking garage, a tunnel, or other similar space.

[0059] The term "vehicle" includes, but is not limited to, two-wheeled vehicles, three-wheeled vehicles, four-wheeled vehicles, and trains, and encompasses any movable vehicle.

[0060] The term "luminous intensity," also known as light intensity, refers to the amount of visible light flux received per unit area. Its unit is lux (or lx), and it represents the strength of light and the degree to which an object's surface area is illuminated.

[0061] Through their research, the inventors discovered that with technological advancements and the continuous improvement of user needs, vehicle glass requires an increasing number of functions. For example, in addition to the conventional light transmission function, vehicle glass needs functions such as image display and user interaction. Because vehicle glass with display and interaction functions requires the comprehensive adoption of technologies such as thin-film transistor arrays, display control, and multi-color pixels, the cost of vehicle glass becomes higher than that of conventional vehicle glass. To meet user needs while considering costs, the most promising technological direction currently is dimmable glass. In other words, using dimmable glass in vehicles enables image display and user interaction functions in addition to the conventional light transmission function.

[0062] Technologies used in dimmable glass include PDLC (polymer dispersed liquid crystal), EC (electrochromic), and SPD (suspended particle) technologies.

[0063] PDLC dimmable glass can be mass-produced relatively quickly at a low cost and achieves both transparency and atomization effects. When the power is on, the polymer-dispersed liquid crystal molecules are arranged in an orderly manner, and light passes directly through the glass. When the power is off, the polymer-dispersed liquid crystal molecules are arranged in a disordered manner, and the light is scattered, creating an atomization effect. PDLC dimmable glass is normally white, and after atomization, it can produce soft, natural light.

[0064] The suspended particles in SPD dimmable glass can absorb more than 99% of visible light. When the power is off, the glass becomes misty, and when the power is on, the suspended particles are arranged in an orderly manner, allowing light to pass through. SPD dimmable glass achieves continuous dimming. Due to the properties of the suspended particles, SPD dimmable glass requires a voltage of 110V, necessitating more thorough safety measures and leading to increased costs. SPD dimmable glass is generally blue in color and differs in appearance from PDLC glass.

[0065] EC dimmable glass achieves adjustment of the light transmittance of glass by utilizing color changes caused by the material and electric field. EC dimmable glass consists of three parts: an ion storage layer, a solid electrolyte, and an electrochromic layer, and possesses characteristics such as low voltage operation, low fogging, and memory when the power is off. The action of the electric field changes the reflectance, transmittance, and absorptiveness of the electrochromic layer, altering the light passing through the glass. In terms of color, EC dimmable glass is primarily gray and blue.

[0066] In the embodiments of this disclosure, the dimmable glass may include dye liquid crystal dimmable glass.

[0067] Figure 1 is a schematic plan view of dimmable glass according to some exemplary embodiments of the present disclosure, and Figure 2 is a cross-sectional view of dimmable glass according to some exemplary embodiments of the present disclosure along line A-A' in Figure 1.

[0068] Referring to Figures 1 and 2, the dimmable glass 10 may comprise a first dimmable substrate 1 and a second dimmable substrate 2 arranged facing each other, and a dimmable component 3 sandwiched between the first dimmable substrate 1 and the second dimmable substrate 2.

[0069] The first dimming substrate 1 may comprise a first base substrate 11, a first electrode 12, a first insulating layer 13, and a first alignment layer 14. The first electrode 12, the first insulating layer 13, and the first alignment layer 14 are arranged in order on the first base substrate 11.

[0070] The second dimming substrate 2 may comprise a second base substrate 21, a second electrode 22, and a second alignment layer 24. The second electrode 22 and the second alignment layer 24 are arranged sequentially on the second base substrate 21.

[0071] The dimmable glass 10 may also be equipped with spacers 32 that serve as support. Selectively, the spacers 32 may be spherical spacers 32, columnar spacers 32, or spacers of other shapes, and may be made of transparent or opaque material.

[0072] For example, the first base substrate 11 and the second base substrate 21 may each be transparent glass substrates. The dimmable glass 10 can be applied to fields such as architecture, transportation, and interior design, enabling switching between a transparent state and an opaque state (e.g., a dark state or a cloudy state), and continuous changes in the transparency of the glass.

[0073] For example, the first electrode 12 and the second electrode 22 may each be transparent electrodes, and may be made of a transparent conductive material such as indium tin oxide (ITO).

[0074] In some embodiments of this disclosure, the dimming component 3 may include a liquid crystal layer, for example, the liquid crystal layer may include a dye liquid crystal, specifically the liquid crystal layer may include liquid crystal molecules and chromatic dye molecules mixed with the liquid crystal molecules. For example, the chromatic dye molecules may be dichroic dye molecules.

[0075] The first electrode 12 included in the first dimming substrate 1 includes a plurality of first sub-electrodes 121, and the plurality of first sub-electrodes 121 are arranged on the first base substrate 11 at intervals. That is, the orthographic projection of the first electrode 12 onto the first base substrate 11 is formed in the shape of multiple spaced-out strips. Each of the first sub-electrodes 121 is transparent, and it should be understood that each of the first sub-electrodes 121 is made of a transparent conductive material such as ITO.

[0076] Referring to Figures 1 and 2, the dimmable glass 10 may further include a plurality of wirings 15 arranged on the first base substrate 11. Exemplarily, the plurality of wirings may correspond to a plurality of first sub-electrodes 121, one each. For example, each wiring may be a conductive wiring made of a conductive material.

[0077] Referring to Figures 1 and 2, the dimmable glass 10 may further include a drive circuit 16, for example, an IC, used to supply electrical signals. Specifically, multiple wires can each electrically connect their corresponding first sub-electrodes 121 to the drive circuit 16, for example, the IC, thereby supplying control signals from the drive circuit 16 to each of the multiple first sub-electrodes 121.

[0078] The second electrode 22 included in the second dimming substrate 2 can be a planar electrode, that is, the orthogonal projection of the second electrode 22 onto the second base substrate 21 forms a continuously distributed planar geometric shape, for example, in the embodiment shown in Figure 1, the orthogonal projection of the second electrode 22 onto the second base substrate 21 forms a perfect rectangle.

[0079] For example, as shown in Figure 1, the orthographic projection of the first electrode 12 onto the first base substrate 11 is contained within the orthographic projection of the second electrode 22 onto the first base substrate 11.

[0080] Furthermore, the second electrode 22 can be electrically connected to, for example, the IC's drive circuit 16 via a conductive structure (e.g., wiring), and control signals provided by the drive circuit 16 can be supplied to the second electrode 22.

[0081] In the dimmable glass provided in the embodiments of this disclosure, when no voltage is applied to the first electrode 12 and the second electrode 22, no electric field is generated between the first electrode 12 and the second electrode 22, and since neither the liquid crystal molecules nor the chromatic dye molecules in the dimmable component 3 are vertically oriented and do not absorb light, the dimmable glass is in a light-transmitting state (i.e., a completely transparent state). When a predetermined voltage is applied to the first electrode 12 and the second electrode 22, an electric field is generated between the first electrode 12 and the second electrode 22, causing the liquid crystal molecules and chromatic dye molecules in the liquid crystal layer 3 to be deflected. Under the action of the electric field, the liquid crystal molecules are guided to align horizontally, and the chromatic dye molecules are also guided to align horizontally, thus performing a role in light absorption. As a result, the dimmable glass becomes either light-opaque (i.e., completely dark) or exhibits transparency between completely dark and completely transparent.

[0082] In this embodiment, the dimmable glass provided in the embodiments of this disclosure will be described using dye liquid crystal as an example. It should be understood that the dimmable glass provided in the embodiments of this disclosure is not limited to dye liquid crystal dimmable glass, but may also include, but is not limited to, other types of dimmable glass such as PDLC dimmable glass, SPD dimmable glass, and EC dimmable glass.

[0083] The inventors have discovered that when a vehicle enters or exits a confined space such as a parking lot or tunnel, the rapid change in light intensity of the external environment can prevent the vehicle's occupants from immediately adapting to the sudden change in light intensity. For example, for the driver, the rapid change in light intensity can make it difficult to see the surrounding environment clearly for a short period, potentially leading to a driving hazard. Furthermore, for passengers inside the vehicle, the rapid change in light intensity can cause physiological discomfort.

[0084] To solve at least one aspect of the above technical problems, an embodiment of the present invention provides a control method for a dimmable glass system used in a vehicle. This control method adaptively determines the transmittance adjustment information of the dimmable glass, thereby rationally controlling the light transmittance of the dimmable glass based on the transmittance adjustment information, and can at least mitigate, or even avoid, problems caused by rapid changes in the light intensity of the environment outside the vehicle.

[0085] In this specification, unless otherwise specified, "luminosity change information" includes at least one of the change in luminosity value and the rate of change in luminosity, and "transmittance adjustment information" includes at least one of the magnitude and rate of change of light transmittance.

[0086] One of the theoretical grounds for the embodiments of this invention is the phenomenon of the human eye adapting to changes in light, specifically light and dark. Specifically, when a person walks from a bright place to a dark place, their vision is temporarily impaired by the change in light. After a while, the sensitivity of the retina gradually increases, and objects in the darkness gradually become clearer. This is the dark adaptation phenomenon. When a person walks from a dark place to a bright place, especially under strong light, the light is initially dazzling, and external objects are almost invisible. After a few seconds, objects gradually become clearer. This process is called the light adaptation phenomenon.

[0087] The light adaptation process in cone cells is very fast, so the light adaptation time is very short, completing in just a few seconds. The dark adaptation time is usually longer than the light adaptation time; for example, it can last from several minutes to several tens of minutes.

[0088] For example, when a vehicle passes through a tunnel, if it enters the tunnel during the daytime, the lighting conditions inside the tunnel are not as bright as outside, so the driver's vision is obstructed by the light, and dark adaptation occurs. In this case, if the tunnel lighting conditions are inadequate, safety accidents are more likely to occur.

[0089] Another rationale for the embodiments of this disclosure is the light dependence of luminous efficiency. Under different illuminances, luminous efficiency increases with increasing illuminance, but under the same illuminance, there is no significant difference in luminous efficiency between different sexes. One researcher measured the visual acuity of male and female students under illuminances of 20–800 lx. As shown in Figure 3, the visual acuity of six samples (i.e., male and female students) measured under illuminances of 20–800 lx is schematically shown. The results show that luminous efficiency increases significantly under illuminances of 200–400 lx, and above 400 lx, luminous efficiency increases gradually with increasing illuminance, with no significant difference.

[0090] The embodiments of this disclosure will be described in more detail below with reference to the attached drawings. In some embodiments of this disclosure, a dimmable glass system for use in a vehicle is provided. Figure 4 is a schematic diagram of the structure of a dimmable glass system for use in a vehicle according to an exemplary embodiment of this disclosure. Referring to Figures 1 to 4, the dimmable glass system 100 includes a dimmable glass 10 and a controller 4. The dimmable glass is implemented based on one or more embodiments of Figures 1 to 2 and is mounted in a vehicle. The controller 4 is electrically connected to the first electrode 12 and the second electrode 22 of the dimmable glass 10. For example, the controller 4 may also be connected to the vehicle's onboard equipment system 5. The controller 4 can be connected to the vehicle's onboard equipment system 5 via a LIN or CAN bus.

[0091] The following section will further explain the operation process of controller 4 in combination with specific control methods.

[0092] Figure 5 is a flowchart of a control method for a dimmable glass system according to some exemplary embodiments of the present disclosure. The control method includes steps S510 to S520. In step S510, light intensity change information is acquired. The light intensity change information includes at least one of the change in light intensity value and the rate of change in light intensity. For example, the light intensity change information may be light intensity change information for the area where the dimmable glass 10 is located, or light intensity change information for the environment in which the vehicle is located.

[0093] In step S520, in response to the light intensity change information satisfying predetermined conditions, the light transmittance of the dimmable glass is adjusted based on the transmittance adjustment information.

[0094] In embodiments of this disclosure, the transmittance adjustment information includes adjusting at least one of the magnitude and rate of change of the light transmittance of the dimmable glass.

[0095] In some exemplary embodiments, in step S520, in response to the luminosity change information satisfying predetermined conditions, predetermined transmittance adjustment information is determined according to a first mapping relationship between predetermined luminosity change information and light transmittance adjustment information, and the determined transmittance adjustment information corresponds to the luminosity change information that satisfies predetermined conditions in the predetermined first mapping relationship. Then, adjustment is performed on the light transmittance of the dimmable glass based on the transmittance adjustment information.

[0096] For example, the first mapping relationship may include a mapping relationship table between predetermined luminosity change information and light transmittance adjustment information, as shown in Table 1 below. Table 1 includes fields such as serial number, luminosity change information, and transmittance adjustment information (including adjustment of the magnitude of transmittance and adjustment of the rate of change of transmittance).

[0097] Table 1 illustrates the mapping relationships between 16 predetermined luminosity change information and light transmittance adjustment information. The 16 mapping relationships listed in Table 1 are merely illustrative, and embodiments of the present invention may include many other mapping relationships.

[0098] Table 1 illustrates the mapping relationship between luminous intensity change information and transmittance adjustment information, using tunnel entry and exit as an example; however, this is merely an illustration. It goes without saying that the mapping relationship between luminous intensity change information and transmittance adjustment information also includes entry and exit scenes in other types of enclosed spaces.

[0099] Referring to Table 1, for example, mapping relationships 1-8 represent scenes of entering a tunnel, and mapping relationships 9-16 represent scenes of exiting a tunnel. Specifically, in mapping relationships 1-4, when entering a tunnel, if the light intensity inside the tunnel is stronger than expected, for example, when entering a tunnel with good lighting conditions on a cloudy day, various different mapping relationships are listed in Table 1 according to such light intensity change information. For example, the magnitude of the transmittance and the rate of change of transmittance in the transmittance adjustment information can be set in advance in a corresponding manner.

[0100] Specifically, the predetermined mapping relationships in Table 1 can be determined based on human physiological characteristics, which include, but are not limited to, the light and dark adaptation of the human eye. For example, in mapping relationship 6 in Table 1, when entering a tunnel, the light intensity change information indicates that the light intensity inside the tunnel is decreasing. At this time, the transmittance of the photochromic glass can be increased in accordance with the dark adaptation of the human eye to ambient light, and the rate of change in transmittance is changed gradually in accordance with the dark adaptation process of the human eye to ambient light. For example, in mapping relationship 10 in Table 1, when exiting a tunnel, the light intensity change information indicates that the light intensity outside the tunnel is increasing. At this time, the transmittance of the photochromic glass can be decreased, and the rate of change in transmittance is changed gradually in accordance with the light adaptation process of the human eye to ambient light.

[0101] [Table 1]

[0102] For example, the predetermined mapping relationships in Table 1 can be determined based on the user's personal preferences. For instance, in mapping relationship 5 in Table 1, when entering a tunnel, the light intensity change information indicates that the light intensity inside the tunnel decreases, the transmittance of the dimmable glass increases, and the rate of change in transmittance is fast, allowing the user to quickly obtain outside light.

[0103] For example, the first mapping relationship may include a mapping relationship table between predetermined luminosity change information and light transmittance adjustment information, as shown in Table 2 below. Table 2 includes fields such as number, initial state of the dimmable glass, scene information, luminosity change information, and transmittance adjustment information (including adjustment of the magnitude of transmittance adjustment and adjustment of the rate of change of transmittance). In Table 2, the initial state of the dimmable glass is always the bright state. In other embodiments, the initial state of the dimmable glass is the dark state. Accordingly, when the initial state of the dimmable glass is the dark state, at least 16 mapping relationships between luminosity change information and transmittance adjustment information can be preset.

[0104] [Table 2]

[0105] In some embodiments, when pre-setting the mapping relationship between luminosity change information and transmittance adjustment information, other factors such as the initial state of the dimmable glass and scene information are also taken into consideration. For example, in mapping relationship 3, the initial state of the dimmable glass is the bright state, and the corresponding transmittance adjustment information is to increase the transmittance of the dimmable glass. For example, if the dimmable glass is adjusted to the brightest state, "increase the transmittance of the dimmable glass" is a null value, meaning that when the dimmable glass is adjusted to the brightest state, the transmittance of the dimmable glass is not increased further.

[0106] Tables 1 and 2 schematically show the fields of a sub-region, but these are merely examples. In other embodiments, the fields in the mapping relationship table between luminosity change information and transmittance adjustment information can be changed, increased, or decreased by the user.

[0107] In embodiments of the present disclosure, adjusting the light transmittance of the dimmable glass includes adjusting the light transmittance of the dimmable glass by adjusting the electrical signal applied to the dimmable glass, wherein the adjustment includes adjusting the electrical signal based on electrical signal adjustment information.

[0108] For example, in embodiments of the present disclosure, the electrical signal adjustment information includes adjusting at least one of the amplitude and switching speed of the electrical signal applied to the dimmable glass.

[0109] In the embodiments of this disclosure, adjusting the amplitude of the electrical signal corresponds to adjusting the magnitude of the transmittance of the dimmable glass, and adjusting the switching speed of the electrical signal corresponds to adjusting the rate of change of transmittance.

[0110] In some exemplary embodiments, the control method further includes determining the electrical signal adjustment information according to a second mapping relationship between predetermined luminous intensity change information and electrical signal adjustment information in response to the luminous intensity change information satisfying predetermined conditions, wherein the determined electrical signal adjustment information corresponds to the luminous intensity change information that satisfies predetermined conditions in the second mapping relationship.

[0111] For example, the second mapping relationship may include a mapping relationship table between predetermined luminosity change information and electrical signal adjustment information, as shown in Table 3 below, where Table 3 includes fields such as number, luminosity change information, and electrical signal adjustment information (including adjustment of the amplitude of the electrical signal and adjustment of the switching speed of the electrical signal).

[0112] Table 3 illustrates the mapping relationships between 16 predetermined luminosity change information and electrical signal conditioning information. The 16 mapping relationships listed in Table 3 are merely illustrative, and embodiments of this disclosure may have more other mapping relationships.

[0113] Table 3 also provides an illustrative example of the mapping relationship between light intensity change information and electrical signal regulation information, using tunnel entry and exit as an example. This is merely an example, and it should be understood that the mapping relationship table between light intensity change information and electrical signal regulation information may also include scenarios involving entry and exit to other types of enclosed spaces.

[0114] [Table 3]

[0115] The second mapping relationship between luminous intensity change information and electrical signal adjustment information will be explained in more detail below, referring to the attached diagram.

[0116] In the embodiments of this disclosure, the amplitude and switching speed of the electrical signal applied to the dimmable glass can be adjusted according to the light intensity change information, thereby adjusting the magnitude and rate of change of the light transmittance of the dimmable glass.

[0117] Furthermore, the methods according to the embodiments of this disclosure can be applied to dimmable glass using different dimming technologies, and the electrical signals applied to the dimmable glass may include voltage signals or current signals. For example, when the methods according to the embodiments of this disclosure are applied to dimmable glass using dye liquid crystal dimming technology, the electrical signals applied to the dimmable glass may include voltage signals.

[0118] Figures 6A and 6B schematically illustrate various specific scenarios in which the dimming glass control method according to the embodiments of this disclosure is applied. For example, Figure 6A schematically illustrates a scenario in which a vehicle enters and exits a confined space such as a tunnel or parking lot during the daytime, and Figure 6B schematically illustrates a scenario in which a vehicle enters and exits a confined space such as a tunnel or parking lot at night.

[0119] Referring to Figure 6A, in Scene 1, a vehicle enters a confined space such as a tunnel or parking lot during the daytime, and information on the change in light intensity inside the confined space is acquired. For example, the light intensity value of the vehicle inside the confined space is detected by a light intensity detector, and the detected actual light intensity value is compared with a predetermined light intensity value. After the comparison, it can be seen that the actual light intensity value is greater than the predetermined light intensity value, i.e., an increase in light intensity has been obtained. In this Scene 1, adjustments can be made to the electrical signal applied to the dimmable glass in accordance with this change in light intensity information (i.e., increase in light intensity). For example, by increasing the voltage applied to the dimmable glass, the light transmittance of the dimmable glass can be reduced. In other words, in Scene 1, an increase in light intensity inside the confined space can be obtained, and the light transmittance of the dimmable glass can be reduced. In this way, the change in light intensity perceived by the driver and passengers inside the vehicle becomes more gradual than the actual change in light intensity, which helps to mitigate or avoid problems caused by rapid changes in light intensity.

[0120] The predetermined luminous intensity value can be determined based on luminous intensity values ​​acquired in advance under various different environments.

[0121] For example, light intensity can be obtained in advance in various environments, such as: 100,000 lux in summer sunlight, 10,000 lux outdoors on a cloudy day, 1,000 lux in a television studio, 300 lux on a table 60 cm away from a 60 W desk lamp, 100 lux under indoor fluorescent lighting, 10-15 lux under candlelight (at a distance of 20 cm), 10 lux indoors at dusk, and 0.1 lux under streetlights at night. Based on these pre-obtained luminous intensity values ​​in different environments, a predetermined luminous intensity value can be determined.

[0122] Continuing to refer to Figure 6A, in Scene 2, the vehicle enters a confined space such as a tunnel or parking lot during the daytime, and information on the change in light intensity inside the confined space is acquired. For example, the light intensity value of the vehicle inside the confined space is detected by a light intensity detector, and the detected actual light intensity value is compared with a predetermined light intensity value. After the comparison, it can be seen that the actual light intensity value is smaller than the predetermined light intensity value, that is, a decrease in light intensity has occurred. In this Scene 2, adjustments can be made to the electrical signal applied to the dimmable glass in accordance with this change in light intensity information (i.e., decrease in light intensity). For example, the light transmittance of the dimmable glass can be increased by lowering the voltage applied to the dimmable glass. In other words, in Scene 2, the decrease in light intensity in the confined space can be acquired, and the light transmittance of the dimmable glass can be increased. As a result, the change in light intensity perceived by the vehicle's driver and passengers will be more gradual than the actual change in light intensity, which helps to mitigate or avoid problems caused by rapid changes in light intensity.

[0123] According to Scene 2, acquiring the luminous intensity change information in step S510 includes acquiring the luminous intensity change information as the vehicle passes through the entrance to the sealed space. In step S520, the luminous intensity change information satisfies predetermined conditions, which include the actual luminous intensity value detected outside the sealed space being higher than a first predetermined luminous intensity threshold, and / or the actual luminous intensity value detected inside the sealed space being lower than a second predetermined luminous intensity threshold. Of these, the first predetermined luminous intensity threshold can be the average luminous intensity outside the tunnel during the daytime, and the second predetermined luminous intensity threshold can be the average luminous intensity inside the tunnel during the daytime.

[0124] Continuing to refer to Figure 6A, in Scene 3, the vehicle leaves a confined space such as a tunnel or parking lot during the daytime, and acquires information on the change in light intensity outside the confined space. For example, the light intensity value of the vehicle outside the confined space is detected by a light intensity detector, and the detected actual light intensity value is compared with a predetermined light intensity value. After the comparison, it can be seen that the actual light intensity value is greater than the predetermined light intensity value, i.e., an increase in light intensity has been obtained. In this Scene 3, adjustments can be made to the electrical signal applied to the dimmable glass in accordance with this change in light intensity information (i.e., increase in light intensity). For example, by increasing the voltage applied to the dimmable glass, the light transmittance of the dimmable glass can be reduced. In other words, in Scene 3, an increase in light intensity inside the confined space is obtained, and the light transmittance of the dimmable glass can be reduced, so the change in light intensity felt by the driver and passengers inside the vehicle becomes more gradual than the actual change in light intensity, which helps to mitigate or avoid problems caused by sudden changes in light intensity.

[0125] According to Scene 3, acquiring luminous intensity change information in step S510 includes acquiring luminous intensity change information as the vehicle passes through the exit of the sealed space. In step S520, the luminous intensity change information satisfies predetermined conditions, which include the actual luminous intensity value detected inside the sealed space being lower than a third predetermined luminous intensity threshold, and / or the actual luminous intensity value detected outside the sealed space being higher than a fourth predetermined luminous intensity threshold. Of these, the third predetermined luminous intensity threshold may be the average luminous intensity inside the tunnel during the daytime, and the fourth predetermined luminous intensity threshold may be the average luminous intensity outside the tunnel during the daytime.

[0126] Continuing to refer to Figure 6A, in Scene 4, the vehicle leaves a confined space, such as a tunnel or parking lot, during the daytime, and information on the change in light intensity inside the confined space is acquired. For example, the light intensity value of the vehicle inside the confined space is detected by a light intensity detector, and the detected actual light intensity value is compared with a predetermined light intensity value. After the comparison, it can be seen that the actual light intensity value is smaller than the predetermined light intensity value, i.e., a decrease in light intensity has been obtained. In this Scene 4, adjustments can be made to the electrical signal applied to the dimmable glass in accordance with this change in light intensity information (i.e., an increase in light intensity). For example, the light transmittance of the dimmable glass can be increased by lowering the voltage applied to the dimmable glass. In other words, in Scene 4, a decrease in light intensity inside the confined space is obtained, and the light transmittance of the dimmable glass can be increased. As a result, the change in light intensity perceived by the driver and passengers inside the vehicle becomes more gradual than the actual change in light intensity, which helps to mitigate or avoid problems caused by sudden changes in light intensity.

[0127] In embodiments of this disclosure, the luminosity change information satisfying a predetermined condition may include the absolute value of the difference between the detected actual luminosity value and the predetermined luminosity value exceeding a first predetermined luminosity difference threshold.

[0128] For example, the first predetermined luminous intensity difference threshold is basically 0, meaning that predetermined luminous intensity values ​​inside and outside the enclosed space may be set according to previously acquired empirical values. When a vehicle enters an enclosed space, for example in Scene 2, if the actual luminous intensity value is less than the predetermined luminous intensity value inside the enclosed space, that is, if the inside of the enclosed space is darker than the inside of a typical enclosed space, the light transmittance of the glass may be adaptively increased. When a vehicle leaves an enclosed space, for example in Scene 3, if the actual luminous intensity value is greater than the predetermined luminous intensity value outside the enclosed space, that is, if the outside of the enclosed space is brighter than the outside of a typical enclosed space, the light transmittance of the glass may be adaptively decreased. In this way, the change in luminous intensity perceived by the driver and passengers inside the vehicle becomes more gradual than the actual change in luminous intensity, which helps to mitigate or avoid problems caused by abrupt changes in luminous intensity.

[0129] In embodiments of this disclosure, the luminosity change information may also include the condition that the absolute value of the difference between the actual luminosity values ​​detected at two time points exceeds a second predetermined luminosity difference threshold.

[0130] For example, in Scene 2, when the vehicle enters a confined space, the absolute difference between the actual luminous intensity value detected at the first time (e.g., when the vehicle is outside the confined space) and the actual luminous intensity value detected at the second time (e.g., when the vehicle enters the confined space) exceeds a second predetermined luminous intensity difference threshold. Here, the "second predetermined luminous intensity difference threshold" may be the absolute difference between predetermined luminous intensity values ​​inside and outside the confined space, set based on previously obtained empirical values. For example, if the outside of the confined space is particularly bright, or if the inside of the confined space is particularly dark, the absolute difference between the actual luminous intensity value detected at the first time and the actual luminous intensity value detected at the second time exceeds the second predetermined luminous intensity difference threshold. In other words, when the vehicle enters a confined space, the luminous intensity outside the vehicle decreases below a predetermined level. At this time, increasing the light transmittance of the dimmable glass makes the change in luminous intensity perceived by the driver and passengers inside the vehicle more gradual than the actual change in luminous intensity, which helps to mitigate or avoid problems caused by sudden changes in luminous intensity.

[0131] For example, in Scene 4, when the vehicle leaves the enclosed space, the absolute difference between the actual luminous intensity value detected at the third time (e.g., when the vehicle is inside the enclosed space) and the actual luminous intensity value detected at the fourth time (e.g., when the vehicle leaves the enclosed space) exceeds the second predetermined luminous intensity difference threshold. For example, if the outside of the enclosed space is particularly bright, or if the inside of the enclosed space is particularly dark, the absolute difference between the actual luminous intensity value detected at the third time and the actual luminous intensity value detected at the fourth time exceeds the second predetermined luminous intensity difference threshold. In other words, when the vehicle leaves the enclosed space, the luminous intensity outside the vehicle rises beyond a predetermined condition. At this time, by lowering the light transmittance of the dimmable glass, the change in luminous intensity perceived by the driver and passengers inside the vehicle becomes more gradual than the actual change in luminous intensity, which helps to mitigate or avoid problems caused by abrupt changes in luminous intensity.

[0132] Referring to Figure 6B, in Scene 5, the vehicle enters a confined space such as a tunnel or parking lot at night, and information on the change in light intensity inside the confined space is acquired. At night, the external environment is generally dark, and tunnels and parking lots are illuminated by brighter lighting than the external environment. For example, a light intensity detector is used to detect the light intensity value of the vehicle inside the confined space, and the detected actual light intensity value is compared with a predetermined light intensity value. After the comparison, it can be seen that the actual light intensity value is greater than the predetermined light intensity value, i.e., an increase in light intensity has been obtained. In this Scene 5, based on this change in light intensity information (i.e., an increase in light intensity), adjustments can be made to the electrical signal applied to the dimmable glass. For example, by increasing the voltage applied to the dimmable glass, the light transmittance of the dimmable glass can be reduced. In other words, in Scene 5, an increase in light intensity inside the confined space is obtained, and the light transmittance of the dimmable glass can be reduced. In this way, the change in light intensity perceived by the driver and passengers inside the vehicle becomes more gradual than the actual change in light intensity, which helps to mitigate or avoid problems caused by abrupt changes in light intensity.

[0133] Continuing to refer to Figure 6B, in Scene 6, the vehicle enters a confined space, such as a tunnel or parking lot, at night, and information on the change in light intensity inside the confined space is acquired. For example, the light intensity value of the vehicle inside the confined space is detected by a light intensity detector, and the detected actual light intensity value is compared with a predetermined light intensity value. After the comparison, it can be seen that the actual light intensity value is smaller than the predetermined light intensity value, for example, that the lighting inside the tunnel was not as bright as expected, and a decrease in light intensity was obtained. In this Scene 6, adjustments can be made to the electrical signal applied to the dimmable glass in accordance with this change in light intensity information (i.e., decrease in light intensity). For example, the voltage applied to the dimmable glass can be lowered to increase the light transmittance of the dimmable glass. In other words, in Scene 6, the decrease in light intensity inside the confined space can be acquired, and the light transmittance of the dimmable glass can be increased. In this way, the change in light intensity perceived by the driver and passengers inside the vehicle is more gradual than the actual change in light intensity, which helps to mitigate or avoid problems caused by sudden changes in light intensity.

[0134] Continuing to refer to Figure 6B, in Scene 7, the vehicle leaves a confined space, such as a tunnel or parking lot, at night, and acquires information on the change in light intensity outside the confined space. For example, the light intensity value of the vehicle outside the confined space is detected by a light intensity detector, and the detected actual light intensity value is compared with a predetermined light intensity value. After the comparison, it is found that the actual light intensity value is greater than the predetermined light intensity value, meaning that an increase in light intensity has occurred. In this Scene 7, adjustments can be made to the electrical signal applied to the dimmable glass in response to this change in light intensity information (i.e., increase in light intensity). For example, the light transmittance of the dimmable glass can be reduced by increasing the voltage applied to the dimmable glass. In other words, in Scene 7, the increase in light intensity inside the confined space can be acquired, and the light transmittance of the dimmable glass can be reduced. As a result, the change in light intensity perceived by the driver and passengers inside the vehicle becomes more gradual than the actual change in light intensity, which helps to mitigate or avoid problems caused by sudden changes in light intensity.

[0135] Continuing to refer to Figure 6B, in Scene 8, the vehicle leaves a confined space, such as a tunnel or parking lot, at night, and information on the change in light intensity inside the confined space is acquired. For example, the light intensity value of the vehicle inside the confined space is detected by a light intensity detector, and the detected actual light intensity value is compared with a predetermined light intensity value. After the comparison, it can be seen that the actual light intensity value is smaller than the predetermined light intensity value, that is, a decrease in light intensity has been obtained. In this Scene 8, adjustments can be made to the electrical signal applied to the dimmable glass in response to this change in light intensity information (i.e., an increase in light intensity). For example, the light transmittance of the dimmable glass can be increased by lowering the voltage applied to the dimmable glass. In other words, in Scene 8, a decrease in light intensity inside the confined space is obtained, and the light transmittance of the dimmable glass can be increased. In this way, the change in light intensity perceived by the driver and passengers inside the vehicle becomes more gradual than the actual change in light intensity, which helps to mitigate or avoid problems caused by abrupt changes in light intensity.

[0136] Based on various specific scenes of the embodiments of this disclosure, it can be seen that in step S520, adjustments are made to the light transmittance of the dimmable glass by adjusting the electrical signal applied to the dimmable glass in response to the luminous intensity change information satisfying predetermined conditions. Specifically, this includes adjusting the electrical signal applied to the dimmable glass in response to the luminous intensity increase information satisfying predetermined conditions to reduce the light transmittance of the dimmable glass.

[0137] Alternatively or additionally, step S520 may include adjusting the light transmittance of the dimmable glass by adjusting the electrical signal applied to the dimmable glass in response to the light intensity change information satisfying a predetermined condition, which specifically includes adjusting the electrical signal applied to the dimmable glass in response to the light intensity decrease information satisfying a predetermined condition to increase the light transmittance of the dimmable glass.

[0138] In other words, in the embodiments of this disclosure, the light transmittance of the dimmable glass can be slowly switched as the light intensity increases or decreases to satisfy predetermined conditions. That is, the change in light intensity perceived by the driver and passengers inside the vehicle is more gradual than the actual change in light intensity, which helps to mitigate or avoid problems caused by abrupt changes in light intensity.

[0139] Alternatively or additionally, step S520 may include adjusting the light transmittance of the dimmable glass by adjusting the electrical signal applied to the dimmable glass in response to the luminous intensity change information satisfying predetermined conditions, specifically by adjusting the electrical signal applied to the dimmable glass in response to the luminous intensity increase information satisfying predetermined conditions to increase the light transmittance of the dimmable glass. For example, in Scene 1, adjustments can be made to the electrical signal applied to the dimmable glass in response to this luminous intensity change information (i.e., luminous intensity increase), and for example, the light transmittance of the dimmable glass can be increased by lowering the voltage applied to the dimmable glass. In other words, in Scene 1, an increase in luminous intensity is obtained inside the enclosed space. Since Scene 1 is a scene in which a vehicle enters an enclosed space, the light transmittance of the dimmable glass can be increased. This allows for a rapid increase in the luminous intensity perceived by the driver and passengers inside the vehicle, and enables a rapid switching of the luminous intensity.

[0140] In the embodiments of this disclosure, the luminous intensity change information includes not only the change in luminous intensity value but also the rate of change in luminous intensity. That is, in the embodiments of this disclosure, the luminous intensity change information satisfying a predetermined condition may include the rate of change in luminous intensity exceeding a predetermined threshold for the rate of change in luminous intensity.

[0141] In other words, in embodiments of the present disclosure, the predetermined conditions may include at least one of the following conditions: the absolute value of the difference between the detected actual luminous intensity value and the predetermined luminous intensity value; the absolute value of the difference between the actual luminous intensity values ​​detected at two different times; and the rate of change of luminous intensity. Accordingly, the luminous intensity change information satisfying the predetermined conditions may include at least one of the following situations: the absolute value of the difference between the detected actual luminous intensity value and the predetermined luminous intensity value exceeds a first predetermined luminous intensity difference threshold; the absolute value of the difference between the actual luminous intensity values ​​detected at two different times exceeds a second predetermined luminous intensity difference threshold; and the rate of change of luminous intensity exceeds a predetermined rate of change of luminous intensity threshold.

[0142] For example, in Scene 2 above, the vehicle has just entered a confined space such as a tunnel or parking lot, and the luminous intensity is gradually decreasing at a constant rate of change. In Scene 3 above, the vehicle has just exited a confined space such as a tunnel or parking lot, and the luminous intensity is gradually increasing at a constant rate of change. For various different scenes, the system can pre-set a threshold for the rate of change of luminous intensity, which can be determined according to the theoretical value of luminous intensity and / or the theoretical rate of change in each scene.

[0143] In some exemplary embodiments of the present disclosure, in step S520, the electrical signal applied to the dimmable glass can be adjusted at one or more switching speeds in response to the luminescence change information satisfying a predetermined condition.

[0144] Specifically, the actual light intensity change rate k1 can be determined from the actual light intensity detected by the photometer, and the switching rate k2 of the electrical signal corresponding to this actual light intensity change rate k1 can be determined. The electrical signal applied to the dimmable glass is then adjusted so that its switching rate matches the electrical signal switching rate k2. Based on the electrical signal switching rate k2, the light transmittance of the dimmable glass also changes at a rate corresponding to the electrical signal switching rate k2.

[0145] In other words, in the embodiments of this disclosure, the rate of change of luminous intensity, the electrical signal switching speed, and the light transmittance of the dimmable glass correspond to each other. Here, "corresponds" means that when the actual rate of change of luminous intensity k1 is small, that is, when the actual light intensity changes slowly, the electrical signal switching speed k2 can also be made small in correspondence, that is, the electrical signal can be switched at a slower speed, and based on this, the light transmittance of the dimmable glass also changes at a slower speed. When the actual rate of change of luminous intensity k1 is large, that is, when the actual light intensity changes rapidly, the electrical signal switching speed k2 also increases accordingly, that is, the electrical signal can be switched at a faster speed, and based on this, the light transmittance of the dimmable glass also changes at a faster speed.

[0146] Specifically, in step S510, acquiring the light intensity change information includes acquiring the light intensity change rate. In step S520, performing adjustments to the electrical signal applied to the dimmable glass includes determining the switching speed of the electrical signal according to the light intensity change rate based on the mapping relationship between the switching speed of the electrical signal and the light intensity change rate, and adjusting the switching speed of the electrical signal applied to the dimmable glass based on the determined switching speed of the electrical signal.

[0147] In the embodiments of this disclosure, the rate of change in luminous intensity can be obtained by the following method. This method involves obtaining luminous intensity over a continuous period of time by detection using a photometer, forming a luminous intensity-time curve based on the luminous intensity over the continuous period of time obtained by detection, obtaining a luminous intensity change rate curve by differentiating time in the luminous intensity-time curve, and obtaining the luminous intensity change rate at different times based on the luminous intensity change rate curve.

[0148] In the embodiments of this disclosure, the mapping relationship between the switching speed of electrical signals and the rate of change in luminous intensity is predetermined. For example, the mapping relationship between the switching speed of electrical signals and the rate of change in luminous intensity can be set by pre-detecting the luminous intensity change information and the switching information of electrical signals in each scene.

[0149] In the embodiments of this disclosure, the second mapping relationship between predetermined luminosity change information and electrical signal adjustment information also includes a mapping relationship between the switching speed of the electrical signal and the luminosity change speed.

[0150] In some exemplary embodiments of the present disclosure, performing adjustments to the electrical signal applied to the dimmable glass in step S520 includes adjusting the switching speed of the electrical signal applied to the dimmable glass to a constant switching speed.

[0151] Figures 7A and 7B are schematic diagrams showing the temporal change of the electrical signal applied to the dimmable glass. For example, the electrical signal may be a voltage signal. As shown in Figures 7A and 7B, the electrical signal applied to the dimmable glass changes over time with a constant slope, and this constant slope indicates that the switching speed of the electrical signal applied to the dimmable glass is constant.

[0152] Combining Figures 7A and 7B, in step S520, adjustments are made to the electrical signal applied to the dimmable glass in response to the luminous intensity change information satisfying predetermined conditions. Specifically, this involves adjusting the electrical signal applied to the dimmable glass at a first constant switching speed in response to the luminous intensity increase information satisfying predetermined conditions, and adjusting the electrical signal applied to the dimmable glass at a second constant switching speed in response to the luminous intensity decrease information satisfying predetermined conditions.

[0153] For example, when a vehicle leaves a confined space such as a tunnel or parking lot during the daytime, the electrical signal applied to the dimmable glass is adjusted at a first constant switching speed VK1 in accordance with whether the light intensity decrease information meets predetermined conditions. That is, the switching speed of the electrical signal applied to the dimmable glass is adjusted to a first constant switching speed VK1. For example, the first constant switching speed VK1 can be the slope of the voltage signal-time curve shown in Figure 7A.

[0154] As another example, when a vehicle enters a confined space such as a tunnel or parking lot during the daytime, the electrical signal applied to the dimmable glass is adjusted at a second constant switching speed VK2 in accordance with whether the light intensity increase information meets predetermined conditions. That is, the switching speed of the electrical signal applied to the dimmable glass is adjusted to a second constant switching speed VK2. For example, the second constant switching speed VK2 can be the slope of the voltage signal-time curve shown in Figure 7B.

[0155] As described above, the dark adaptation time is longer than the light adaptation time. In some exemplary embodiments of this disclosure, the second constant switching speed VK2 is smaller than the first constant switching speed VK1. Thus, the dark adaptation switching time is longer than the light adaptation switching time, which is beneficial for the user in light and dark adaptation in various situations.

[0156] Through their research, the inventors discovered that the actual change in luminosity does not change linearly according to a constant slope. Figure 8 schematically shows the actual luminosity-time curve. For example, Figure 8 can correspond to the luminosity-time curves in Scene 1 and Scene 3 described above, i.e., the luminosity increase process.

[0157] As shown in Figure 8, in a luminosity increase scene, the actual luminosity change curve is an S-shaped growth curve, such as a sigmoid curve. Specifically, the luminosity detected by the light detector changes from "dark" to "bright," and eventually the luminosity gradually stabilizes.

[0158] FIG. 9 is a curve obtained by differentiating the light intensity-time curve shown in FIG. 8, that is, FIG. 9 schematically shows a light intensity change rate-time curve. Referring to FIGS. 8 and 9, in the continuous time period of the light intensity change, the light intensity change rate may change with time. For example, this continuous time period starts at time t start and ends at time t end and during the start time t start and the end time t end , the light intensity change rate exceeds a predetermined light intensity change rate. For example, as shown in FIG. 9, the predetermined light intensity change rate can be 0 or substantially 0. That is, during the start time t start and the end time t end , all the light intensity change rates exceed 0.

[0159] Further referring to FIG. 9, there is a time t start when the light intensity change rate is the largest between the start time t end and the end time t max . The light intensity change rate at the time t max when the light intensity change rate is the largest is the maximum value of the light intensity change rate in the continuous time period.

[0160] In some exemplary embodiments of the present disclosure, it is possible to set a start adjustment time for performing adjustment on the electrical signal applied to the dimming glass.

[0161] For example, the start adjustment time for performing adjustment on the electrical signal applied to the dimming glass can be set as the start time t start . In this embodiment, when the light intensity starts to increase, the electrical signal is immediately adjusted, thereby achieving an immediate adjustment of the light transmittance of the dimming glass. In this case, by pre-adjusting the transparency of the glass, it is possible to improve and avoid the adjustment delay caused by factors such as insufficient sensitivity of the light intensity detector.

[0162] For example, the start adjustment time for performing adjustment on the electrical signal applied to the dimming glass is the time t maxThis can be set as follows. In this embodiment, the transparency of the glass is adjusted to the time when the light intensity changes most rapidly. This helps to adjust the transparency of the glass to closely follow the actual changes in light intensity.

[0163] For example, the start time for performing adjustments to the electrical signal applied to the dimmable glass is defined as the end time t end This can be set as follows. In this embodiment, the electrical signal starts to adjust at the time when the change in light intensity is stabilizing. This improves and avoids adjustment oscillations caused by factors such as insufficient sensitivity of the light intensity detector.

[0164] In other words, in the embodiments of this disclosure, the start adjustment time for performing adjustments to the electrical signal applied to the dimmable glass can be one time selected from the start time, the time when the rate of change of light intensity is greatest, and the end time.

[0165] Figure 10 is a comparison diagram of the actual rate of change in luminous intensity in a luminous intensity-time curve and a predetermined threshold for the rate of change in luminous intensity. Referring to Figures 8 to 10, the rate of change in luminous intensity can change with time over a continuous period of time. In some exemplary embodiments, the predetermined threshold for the rate of change in luminous intensity L1 may be a fixed value. In Figure 10, the slope of the dotted line represents the predetermined threshold for the rate of change in luminous intensity L1, which may be a fixed value. For example, L1 == Δy1 / Δt1, where Δt1 is the unit time and Δy1 is the predetermined amount of change in luminous intensity per unit time.

[0166] In Figure 10, the solid line represents the actual luminous intensity L, which changes over time. X This represents a curve where the slope of the solid line changes at each point, indicating that the actual rate of change in luminosity can change over time in a continuous period of time. For example, L x = =Δy x / Δt x And Δt x Δy is a unit of time. x This represents the actual change in luminosity per unit time.

[0167] In some exemplary embodiments, the actual rate of change of luminosity L x If the luminosity change rate threshold L1 is greater than a predetermined threshold, the electrical signal can be regulated at a constant switching speed. Referring back to Figure 7A, the actual voltage V is given by V = VK1*t + V0, where VK1 is the slope of the curve shown in Figure 7A and V0 is a predetermined constant. This equation allows us to determine the regulated voltage signal.

[0168] In this embodiment, the switching speed of the electrical signal is fixed. That is, the electrical signal-time curve has a constant slope, which is useful for controlling and regulating the electrical signal and enables the adjustment of "uniform" transmittance.

[0169] In some exemplary embodiments of the present disclosure, performing adjustments to the electrical signal applied to the dimmable glass in step S520 in response to the rate of change of light intensity may include performing adjustments to the electrical signal applied to the dimmable glass with a variable switching speed.

[0170] Specifically, in step S520, the adjustment of the electrical signal applied to the dimmable glass involves determining the switching speed of the electrical signal according to the rate of change of light intensity, based on the mapping relationship between the switching speed of the electrical signal and the rate of change of light intensity, and adjusting the switching speed of the electrical signal applied to the dimmable glass based on the determined switching speed of the electrical signal. For example, in the embodiments shown in Figures 8-10, the rate of change of light intensity can change over time in a continuous period of time. In this embodiment, the switching speed of the electrical signal can be adjusted in real time according to the mapping relationship between the switching speed of the electrical signal and the rate of change of light intensity. That is, the slope of the electrical signal-time curve is no longer fixed and changes in accordance with the change in the rate of change of light intensity.

[0171] For example, the actual voltage V = VKx*t + V0, where VKx is the switching speed of the electrical signal, which is determined according to the rate of change of light intensity based on the mapping relationship between the switching speed of the electrical signal and the rate of change of light intensity, and changes over time. V0 is a predetermined constant. This equation allows us to determine the regulated voltage signal.

[0172] In this embodiment, the switching speed of the electrical signal is variable; that is, the switching speed of the electrical signal changes in accordance with the change in the rate of change of light intensity. This makes it possible to change the transparency of the dimmable glass in real time in accordance with the change in the rate of change of light intensity, thereby enabling gradient-like adjustment of the transmittance.

[0173] Figure 11 is a flowchart of a control method for a dimmable glass system according to another exemplary embodiment of the present disclosure. Figure 12 is a specific application diagram of a control method according to some exemplary embodiments of the present disclosure. The control method includes steps S1110 to S1120.

[0174] In step S1110, the vehicle's location information is acquired. For example, the vehicle's location information can be acquired using the vehicle's location sensor.

[0175] In step S1120, pre-adjustment is performed on the electrical signal applied to the dimmable glass based on the acquired position information, thereby pre-adjusting the light transmittance of the dimmable glass.

[0176] In embodiments of the present disclosure, the pre-adjustment can be performed as follows. For example, in response to the vehicle position change information satisfying a predetermined position condition, the transmittance adjustment information is determined according to a third mapping relationship between the predetermined vehicle position change information and the light transmittance adjustment information, where the transmittance adjustment information corresponds to the vehicle position change information that satisfies the position condition in the third mapping relationship.

[0177] For example, the third mapping relationship may include a mapping relationship table between predetermined vehicle position change information and light transmittance adjustment information, as shown in Table 4 below. Table 4 includes fields such as number, vehicle position change information, and transmittance adjustment information (including adjustment of the magnitude of transmittance and adjustment of the rate of change of transmittance).

[0178] Table 4 illustrates the mapping relationships between four predetermined vehicle position change information and light transmittance adjustment information. The four mapping relationships listed in Table 4 are merely illustrative, and embodiments of this disclosure may have more other mapping relationships.

[0179] Table 4 shows the mapping relationship between vehicle position change information and transmittance adjustment information, using tunnel entry and exit as an example. However, this is merely one example, and it should be understood that the mapping relationship table between vehicle position change information and transmittance adjustment information may also include scenes of entering and exiting other types of enclosed spaces.

[0180] [Table 4]

[0181] In mapping relationship 1 or 2 of Table 4, if the vehicle is located outside the tunnel and its distance from the tunnel entrance is less than or equal to the first specified distance (i.e., approaching the tunnel entrance), pre-adjustment can be performed on the light transmittance of the dimmable glass. For example, the light transmittance of the dimmable glass can be reduced at a gradual rate of change. This allows the interior light intensity to be gradually reduced before the vehicle enters the tunnel, enabling the driver and passengers to adapt in advance to the reduction in light intensity upon entering the tunnel. Alternatively, the light transmittance of the dimmable glass can be reduced at a rapid rate of change to suit the user's personal preferences and characteristics.

[0182] In mapping relationship 3 or 4 of Table 4, if the vehicle is located inside the tunnel and its distance from the tunnel exit is less than or equal to the second specified distance (i.e., approaching the tunnel exit), pre-adjustment can be performed on the light transmittance of the dimmable glass. For example, the light transmittance of the dimmable glass can be increased at a gradual rate of change. This allows the interior light intensity to be gradually increased before the vehicle exits the tunnel, enabling the driver and passengers to adapt in advance to the sudden increase in light intensity upon exiting the tunnel. Alternatively, the light transmittance of the dimmable glass can be increased at a rapid rate of change to suit the user's personal preferences and characteristics.

[0183] Referring to Figure 11, the above control method will be explained in detail in combination with either Scene 1 or Scene 2 described above. In other words, the explanation will be given using the example of a vehicle entering a confined space such as a parking lot or tunnel.

[0184] In step S1110, vehicle position information is obtained using vehicle position sensors such as a GPS position sensor and a Beidou position sensor, and distance information S between the vehicle's current position and the entrance to the tunnel / parking lot is determined.

[0185] In step S1120, the time t from the vehicle's current position to the entrance of the tunnel / parking lot is calculated based on the speed information via the distance information S. For example, the speed information includes the vehicle's current speed, the current road's maximum speed limit, or the greater of the vehicle's current speed and the current road's maximum speed limit.

[0186] Furthermore, in step S1120, the voltage V1 of the dimmable glass in the dark state is obtained, and based on the calculated time t, an appropriate actual voltage switching speed V1 (corresponding to a constant switching speed) or Vx (corresponding to a variable switching speed) can be calculated. Depending on the actual voltage switching speed V1 or Vx, the voltage signal applied to the dimmable glass is adjusted to change the transparency of the dimmable glass.

[0187] In this embodiment, by acquiring location information, the light transmittance of the dimmable glass can be adjusted in advance so that the vehicle driver and passengers can adapt to the soon-to-arrive change in light intensity.

[0188] Referring to Figure 12, if the vehicle is located outside the tunnel and the distance from the tunnel entrance is less than or equal to a first specified distance, the light transmittance of the dimmable glass can be pre-adjusted, for example, by gradually reducing the light transmittance of the dimmable glass. In this way, the light intensity inside the vehicle can be gradually reduced before the vehicle enters the tunnel, and the vehicle driver and passengers can adapt in advance to the reduction in light intensity due to entering the tunnel.

[0189] The embodiments of this disclosure can also be combined with the embodiment shown in Figure 5. That is, referring to Figure 11 again, the control method may also include steps S1130 to S1140. Step S1130 corresponds to step S510 described above, and step S1140 corresponds to step S540 described above.

[0190] In step S1130, luminous intensity change information is acquired, and the luminous intensity change information includes at least one of the change in luminous intensity value and the rate of change in luminous intensity.

[0191] In step S1140, in response to the light intensity change information satisfying predetermined conditions, adjustments are made to the electrical signal applied to the dimmable glass to adjust the light transmittance of the dimmable glass.

[0192] Referring to Figure 12, there are two cases in which the inside of the tunnel may become brighter or darker than expected as a vehicle enters the tunnel from the entrance. In these two cases, the light transmittance of the dimmable glass can be adjusted using the method described above. For example, if the inside of the tunnel is brighter than expected, the light transmittance of the dimmable glass decreases at a gradual rate of change, and if the inside of the tunnel is darker than expected, the light transmittance of the dimmable glass increases at a gradual rate of change.

[0193] Continuing to refer to Figure 12, there are two cases in which the outside may become brighter or darker than expected as the vehicle passes through the tunnel exit. In these two cases, the light transmittance of the dimmable glass can be adjusted using the method described above. For example, if the outside is brighter than expected, the light transmittance of the dimmable glass decreases at a gradual rate, and if the outside is darker than expected, the light transmittance of the dimmable glass increases at a gradual rate.

[0194] As shown in Figure 12, the pre-adjustment outside the tunnel entrance, the adjustment inside the tunnel, and the adjustment outside the tunnel exit can be a continuous adjustment process. Due to the pre-adjustment outside the tunnel entrance, there are two cases in which the inside of the tunnel may become brighter or darker than expected as the vehicle passes through the tunnel entrance and enters the tunnel. In this case, one adjustment method can be changed to two adjustment methods. Similarly, there are two cases in which the outside of the tunnel may become brighter or darker than expected as the vehicle passes through the tunnel exit and exits the tunnel. In this case, two adjustment methods can be changed to four adjustment methods. In other words, in the embodiments of this disclosure, light transmittance adjustment methods that can be handled in a consistent manner can be combined to address various cases.

[0195] In step S1120, the electrical signal applied to the dimmable glass can be adjusted at a constant switching speed or a variable switching speed.

[0196] In some exemplary embodiments, performing pre-adjustment to the electrical signal applied to the dimmable glass in accordance with acquired position information in step S1120 specifically includes performing pre-adjustment to the electrical signal applied to the dimmable glass at a constant switching speed as the vehicle passes through the entrance or exit of a sealed space.

[0197] In another exemplary embodiment, pre-adjusting the electrical signal applied to the dimmable glass in accordance with the acquired position information in step S1120 specifically includes pre-adjusting the electrical signal applied to the dimmable glass at a variable switching speed as the vehicle passes through the entrance or exit of the enclosed space, where the variable switching speed is determined based on the vehicle speed.

[0198] In some exemplary embodiments, performing adjustments to the electrical signal applied to the dimmable glass in step S1120 includes adjusting the switching speed of the electrical signal applied to the dimmable glass according to the acquired position information.

[0199] Specifically, in step S1120, adjusting the switching speed of the electrical signal applied to the dimmable glass based on the acquired position information includes adjusting the switching speed of the electrical signal to a first switching speed, which is higher than a predetermined switching speed, as the vehicle passes through the entrance to a confined space. For example, as the vehicle enters a confined space such as a tunnel or parking lot, adjusting the electrical signal to a faster switching speed causes the transparency of the dimmable glass to change more rapidly. In other words, the transparency of the dimmable glass changes rapidly, for example, rapidly to a high transmittance. This helps the driver to pay attention to the surrounding environment.

[0200] Specifically, in step S1120, adjusting the switching speed of the electrical signal applied to the dimmable glass based on the acquired position information includes adjusting the switching speed of the electrical signal to a second switching speed as the vehicle passes through the exit of a confined space, wherein the second switching speed is lower than a predetermined switching speed. For example, as the vehicle exits a confined space such as a tunnel or parking lot, adjusting the switching speed of the electrical signal to a slower rate allows the transparency of the dimmable glass to change more slowly, i.e., the transparency of the dimmable glass to change slowly, for example, to a low transmittance. In this way, it helps the driver to gradually adapt to the surrounding environment.

[0201] Specifically, in step S1120, adjusting the switching speed of the electrical signal applied to the dimmable glass based on the acquired location information includes adjusting the switching speed of the electrical signal to a third switching speed when the vehicle is in a first environment and the vehicle's user is leaving the vehicle, wherein the third switching speed is lower than a predetermined switching speed, and the first environment is an environment familiar to the vehicle's user. For example, after a driver parks their car in a residential area or company parking lot, the driver and passengers inside the car prepare to leave. In such a scenario, the electrical signal can be adjusted to a slower switching speed, allowing the transparency of the dimmable glass to change at a slower rate. That is, the transparency of the dimmable glass changes slowly, for example, slowly to a low transmittance. This makes it convenient for the driver and passengers inside the car when saying goodbye or looking for lost items.

[0202] Specifically, in step S1120, the switching speed of the electrical signal applied to the dimmable glass is adjusted based on the acquired location information. Specifically, when the vehicle is in a second environment and the vehicle's user is in the process of leaving the vehicle, the switching speed of the electrical signal is adjusted to a fourth switching speed. The fourth switching speed is higher than a predetermined switching speed, and the second environment is an unfamiliar environment for the vehicle's user. For example, after a driver parks their car in an unfamiliar environment such as a roadside parking lot or a supermarket parking lot, the driver and passengers inside the car prepare to leave the vehicle. In such a scenario, adjusting the electrical signal to a faster switching speed allows the transparency of the dimmable glass to change more quickly. That is, the transparency of the dimmable glass can be changed quickly, for example, to a low transmittance quickly. Doing so helps protect the privacy of people inside the vehicle.

[0203] For example, in steps S520 and S1130 above, performing adjustments to the electrical signal applied to the dimmable glass may include adjusting the switching speed of the electrical signal applied to the dimmable glass according to the vehicle speed while the vehicle is in motion. Here, the switching speed of the electrical signal is inversely proportional to the vehicle speed.

[0204] For example, in scenes where a vehicle is traveling at high speed, the rapid switching of scenes caused by high-speed driving can result in abrupt changes in light intensity. In such scenes, by appropriately reducing the switching speed of the electrical signal applied to the dimmable glass, the light transmittance of the dimmable glass can be changed at a relatively gradual rate. In this way, problems related to driving safety caused by abrupt changes in light intensity can be avoided.

[0205] As another example, in a scene where the vehicle is traveling at a low speed, the scene transition becomes gradual due to the low speed. In this scene, by appropriately increasing the switching speed of the electrical signal applied to the dimmable glass, the light transmittance of the dimmable glass can be changed at a relatively fast rate. This allows the driver to achieve their objective quickly.

[0206] Figure 13 is a flowchart of a control method for a dimmable glass system according to another exemplary embodiment of the present disclosure. Figure 14 is a specific application diagram of the control method according to another exemplary embodiment of the present disclosure. The control method includes steps S1310 to S1340. Notwithstanding the exceptions, the control method of this embodiment may include the steps and adjustments of the embodiments described above, unless otherwise specified.

[0207] In step S1310, in response to the light intensity change information satisfying a first predetermined condition and / or the vehicle position change information satisfying a first position condition, a first adjustment is performed on the light transmittance of the dimmable glass, and the first adjustment includes performing an adjustment on the light transmittance of the dimmable glass based on first transmittance adjustment information.

[0208] For example, performing a first adjustment to the light transmittance of the dimmable glass is performed by performing a first adjustment to the electrical signal applied to the dimmable glass, and the first adjustment includes adjusting the electrical signal based on first electrical signal adjustment information.

[0209] Referring to Figure 14, if the vehicle is located outside the tunnel and the distance from the tunnel entrance is less than or equal to a first specified distance, and / or if the light intensity change information satisfies the conditions that the vehicle is located outside the tunnel and is entering the tunnel, then a pre-adjustment, i.e., a first adjustment, can be performed on the light transmittance of the dimmable glass. For example, the light transmittance of the dimmable glass can be reduced at a gradual rate of change. In this way, the light intensity inside the vehicle can be gradually reduced before the vehicle enters the tunnel, and the driver and passengers inside the vehicle can adapt in advance to the weakening of light intensity due to entering the tunnel.

[0210] In step S1310, in response to the luminosity change information satisfying a first predetermined condition, the first transmittance adjustment information is determined according to a first mapping relationship between predetermined luminosity change information and light transmittance adjustment information, and the first transmittance adjustment information corresponds to the luminosity change information that satisfies the first predetermined condition in the first mapping relationship. In step S1310, in response to the luminous intensity change information satisfying a first predetermined condition, the first electrical signal adjustment information is determined according to a second mapping relationship between predetermined luminous intensity change information and electrical signal adjustment information, and the first electrical signal adjustment information corresponds to the luminous intensity change information that satisfies the first predetermined condition in the second mapping relationship.

[0211] In step S1310, in response to the vehicle position change information satisfying the first position condition, the first transmittance adjustment information is determined according to a predetermined third mapping relationship between the vehicle position change information and the light transmittance adjustment information, and the first transmittance adjustment information corresponds to the vehicle position change information that satisfies the first position condition in the third mapping relationship.

[0212] In step S1320, after performing a first adjustment on the light transmittance information of the dimmable glass, a second adjustment is performed on the light transmittance information of the dimmable glass in response to the light intensity change information satisfying a second predetermined condition, and the second adjustment includes performing an adjustment on the light transmittance of the dimmable glass based on the second transmittance adjustment information.

[0213] For example, in this step, the second adjustment determines the transmittance adjustment information according to a first mapping relationship between predetermined luminosity change information and light transmittance adjustment information in response to the luminosity change information satisfying predetermined conditions, and the determined transmittance adjustment information corresponds to the luminosity change information that satisfies predetermined conditions in the first mapping relationship. Next, adjustment is performed on the light transmittance of the dimmable glass based on the transmittance adjustment information. For example, the transmittance adjustment information can be determined according to the mapping relationship table shown in Table 1 or Table 2.

[0214] For example, performing a second adjustment to the light transmittance of the dimmable glass includes performing a second adjustment to the electrical signal applied to the dimmable glass, wherein the second adjustment includes adjusting the electrical signal based on second electrical signal adjustment information.

[0215] Continuing to refer to Figure 14, there are cases where the inside of the tunnel is darker than expected as the vehicle enters the tunnel from the entrance. In this case, the light transmittance of the dimmable glass can be adjusted using the method described above. For example, if the inside of the tunnel is darker than expected, the light transmittance of the dimmable glass can be increased at a gradual rate of change.

[0216] In step S1320, in response to the luminosity change information satisfying a second predetermined condition, the second transmittance adjustment information is determined according to a first mapping relationship between predetermined luminosity change information and light transmittance adjustment information, and the second transmittance adjustment information corresponds to the luminosity change information that satisfies the second predetermined condition in the first mapping relationship.

[0217] In step S1320, in response to the luminous intensity change information satisfying a second predetermined condition, the second electrical signal adjustment information is determined according to a second mapping relationship between predetermined luminous intensity change information and electrical signal adjustment information, and the second electrical signal adjustment information corresponds to the luminous intensity change information that satisfies the second predetermined condition in the second mapping relationship.

[0218] In step S1330, after performing a second adjustment on the light transmittance information of the dimmable glass, a third adjustment is performed on the light transmittance information of the dimmable glass in response to the light intensity change information satisfying a third predetermined condition and / or the vehicle position change information satisfying a second position condition, the third adjustment includes performing an adjustment on the light transmittance of the dimmable glass based on the third transmittance adjustment information.

[0219] For example, performing a third adjustment on the light transmittance of the dimmable glass involves performing a third adjustment on the electrical signal applied to the dimmable glass, and the third adjustment includes adjusting the electrical signal based on third electrical signal adjustment information.

[0220] Continuing to refer to Figure 14, if the vehicle is located inside the tunnel and the distance from the tunnel exit is less than or equal to the second specified distance, and / or if the light intensity change information satisfies the condition that the vehicle is located inside the tunnel and is about to exit the tunnel, then a pre-adjustment, i.e., a third adjustment, can be performed on the light transmittance of the dimmable glass. For example, the light transmittance of the dimmable glass can be reduced at a gradual rate of change. In this way, the light intensity inside the vehicle can be gradually reduced before the vehicle exits the tunnel, and the driver and passengers inside the vehicle can adapt in advance to the rapid increase in light intensity due to exiting the tunnel.

[0221] In step S1330, in response to the luminosity change information satisfying a third predetermined condition, the third transmittance adjustment information is determined according to a first mapping relationship between predetermined luminosity change information and light transmittance adjustment information, and the third transmittance adjustment information corresponds to the luminosity change information that satisfies the third predetermined condition in the first mapping relationship.

[0222] In step S1330, in response to the luminosity change information satisfying a third predetermined condition, the third electrical signal adjustment information is determined according to a second mapping relationship between predetermined luminosity change information and electrical signal adjustment information, and the third electrical signal adjustment information corresponds to the luminosity change information that satisfies the third predetermined condition in the second mapping relationship.

[0223] In step S1330, in response to the vehicle position change information satisfying the second position condition, the third transmittance adjustment information is determined according to a predetermined third mapping relationship between the vehicle position change information and the light transmittance adjustment information, and the third transmittance adjustment information corresponds to the vehicle position change information that satisfies the second position condition in the third mapping relationship.

[0224] In step S1340, after performing a third adjustment on the light transmittance information of the dimmable glass, a fourth adjustment is performed on the light transmittance information of the dimmable glass in response to the light intensity change information satisfying a fourth predetermined condition, and the fourth adjustment includes performing an adjustment on the light transmittance of the dimmable glass based on the fourth transmittance adjustment information.

[0225] For example, in this step, the fourth adjustment may include determining the transmittance adjustment information according to a first mapping relationship between predetermined luminosity change information and light transmittance adjustment information, in response to the luminosity change information satisfying predetermined conditions. Here, the determined transmittance adjustment information corresponds to the luminosity change information that satisfies predetermined conditions in the first mapping relationship. Then, an adjustment is performed on the light transmittance of the dimmable glass based on the transmittance adjustment information. For example, the transmittance adjustment information may be determined according to the mapping relationship table shown in Table 1 or Table 2.

[0226] For example, performing a fourth adjustment on the light transmittance of the dimmable glass includes performing a fourth adjustment on the electrical signal applied to the dimmable glass, and the fourth adjustment includes adjusting the electrical signal based on fourth electrical signal adjustment information.

[0227] Continuing to refer to Figure 14, as the vehicle passes through the tunnel exit and leaves the tunnel, the outside may become darker than expected. In this case, the light transmittance of the dimmable glass can be adjusted using the method described above. For example, if the outside is darker than expected, the light transmittance of the dimmable glass can be increased at a gradual rate.

[0228] In step S1340, in response to the luminosity change information satisfying a fourth predetermined condition, the fourth transmittance adjustment information is determined according to a first mapping relationship between predetermined luminosity change information and light transmittance adjustment information. Here, the fourth transmittance adjustment information corresponds to the luminosity change information that satisfies the fourth predetermined condition in the first mapping relationship.

[0229] In step S1340, in response to the luminosity change information satisfying a fourth predetermined condition, the fourth electrical signal adjustment information is determined according to a second mapping relationship between predetermined luminosity change information and electrical signal adjustment information. Here, the fourth electrical signal adjustment information corresponds to the luminosity change information that satisfies the fourth predetermined condition in the second mapping relationship.

[0230] In the embodiments of this disclosure, it should be understood that at least one of the light intensity change information and the vehicle position change information can be acquired in real time during the vehicle's operation.

[0231] In embodiments of the present disclosure, each of the first transmittance adjustment information, the second transmittance adjustment information, the third transmittance adjustment information, and the fourth transmittance adjustment information includes adjusting at least one of the magnitude and rate of change of the light transmittance of the dimmable glass.

[0232] In embodiments of the present disclosure, each of the first electrical signal adjustment information, the second electrical signal adjustment information, the third electrical signal adjustment information, and the fourth electrical signal adjustment information includes adjusting at least one of the amplitude and switching speed of the electrical signal applied to the dimmable glass.

[0233] In the embodiments of this disclosure, as shown in Figure 14, entry into and exit from a sealed space is considered a continuous scene, and the transmittance of predetermined characteristics can be adjusted in advance according to the vehicle position change information, which belongs to "coarse adjustment". Adjustments made when entering or exiting a sealed space belong to "fine adjustment", which is a continuous process. By performing two consecutive adjustments when entering or exiting a sealed space, the entire adjustment process can be made into a closed loop, which is more adaptable to the physiological processes of the human body, and in accordance with the adaptations made by the driver and passengers when entering a sealed space, it is possible to avoid the occurrence of traffic accidents and improve safety.

[0234] Figure 15 is a schematic diagram showing a dimmable glass system according to an embodiment of the present invention applied to a vehicle, and is a top view of the vehicle. As shown in Figure 15, the dimmable glass in the dimmable glass system can include at least one of the vehicle's front windshield 51, rear windshield 52, sunroof glass 53, sun visors, and all side windshields 54. That is, at least one of the vehicle's front windshield, rear windshield, sunroof glass, sun visors, and all side windshields can employ the dimmable glass in the dimmable glass system according to an embodiment of the present disclosure, and therefore the control method of the dimmable glass system according to an embodiment of the present disclosure can also be applied to these glass components.

[0235] Referring to Figures 1, 2, 4, and 15, the dimmable glass system 100 may include a dimmable glass 10, a control unit 4, a light intensity detector 6, and a position sensor 7. Of these, the dimmable glass can be implemented based on one or more embodiments shown in Figures 1 and 2 and mounted on a vehicle. The controller 4 is electrically connected to the first electrode 12 and the second electrode 22 of the dimmable glass 10. For example, the controller 4 may also be electrically connected to the vehicle's onboard equipment system 5.

[0236] The photometer 6 is used to detect the luminosity of the environment in which it is placed. In the embodiments of this disclosure, there are no special restrictions on the type and mounting location of the photometer 6. The photometer 6 can be any suitable type and can be mounted in any suitable location.

[0237] The position sensor 7 is used to detect the position of the vehicle. In the embodiments of this disclosure, there are no special restrictions on the type and mounting location of the position sensor 7. The position sensor 7 can be any suitable type and can be mounted in any suitable location.

[0238] In the embodiments of this disclosure, the photometer 6 and position sensor 7 can be directly connected to the controller 4. That is, the information obtained by the photometer 6 and position sensor 7 can be directly input to the controller 4. Alternatively, the photometer 6 and position sensor 7 can be connected to the in-vehicle equipment system 5. That is, the information obtained by the photometer 6 and position sensor 7 can be directly input to the in-vehicle equipment system 5, and the in-vehicle equipment system 5 can input that information to the controller 4.

[0239] In embodiments of the present disclosure, adjusting the light transmittance of the dimmable glass by adjusting the electrical signals applied to the dimmable glass includes adjusting the light transmittance of at least one of the vehicle's front windshield, rear windshield, sunroof glass, sun visor, and all side windshields by adjusting the electrical signals applied to the vehicle's front windshield, rear windshield, sunroof glass, sun visor, and all side windshields. For example, the light transmittance of the vehicle's front windshield, rear windshield, sunroof glass, sun visor, and all side windshields can be adjusted by simultaneously adjusting the electrical signals applied to the vehicle's front windshield, rear windshield, sunroof glass, sun visor, and all side windshields.

[0240] Referring back to Figures 1 and 2, in some embodiments of the present disclosure, the dimming component 3 is configured such that the state of the dimming component 3 changes in response to an electrical signal applied to at least one of the first electrode 12 and the second electrode 22, and the dimming glass 10 has multiple regions.

[0241] For example, the electrical signal may be a voltage signal. The voltage signal includes a predetermined driving voltage that is applied, and when the dimmable glass 10 is in operation, the electrical signal is transmitted to the first electrode 12 and / or the second electrode 22, controlling the deflection state of the liquid crystal molecules in the liquid crystal layer 31, and thereby controlling the light transmittance of the dimmable glass 10.

[0242] Figure 16 is a schematic diagram showing the structure of the dimmable glass in a dimmable glass system according to an embodiment of the present disclosure. Referring to Figure 16, the first electrode 12 in the dimmable glass 10 of this embodiment comprises a plurality of first sub-electrodes 121, each of which supports one or more regions in the vertical direction shown in this paper, and the area / number of each region is adjustable, and the adjustable range is determined by the number of first sub-electrodes 121, for example, at least two independently controllable first sub-electrodes 121. The greater the number of first sub-electrodes 121, the more precise the control of the dynamic switching for each region becomes. In addition, the light transmittance of each region can be fixed, or it can support range adjustment or stepless adjustment.

[0243] For example, an electrical signal can be applied from a drive circuit to the first electrode 12 and / or the second electrode 22 via wiring. For each sub-electrode 121 of the first electrode 12, the electrical signals transmitted by one wire and at least one of the remaining wires may be the same or different. In the dimmable glass 10 provided in embodiments of the present disclosure, the drive circuit can supply an electrical signal to one or more of the sub-electrodes and also to the second electrode 22 to generate an electric field between one or more sub-electrodes and the second electrode 22, thereby changing the light transmittance of one or more corresponding areas of the sub-electrodes.

[0244] In this way, various dimming effects can be achieved, such as independently adjusting the light transmittance of each sub-electrode region. Thus, when it is necessary to adjust the light transmittance of a certain region of the dimmable glass 10, an electrical signal can be applied to the sub-electrode and the second electrode 22 of that region. For example, by setting the driving voltage of the sub-electrode of that region to be different from the driving voltage of the other sub-electrodes and generating an electric field corresponding to the region where the sub-electrode and the second electrode 22 face each other, the light transmittance of that region can be controlled independently.

[0245] In the embodiments of this disclosure, performing adjustments to the electrical signal applied to the dimmable glass in steps S520 and S1130 includes adjusting the switching speed of the electrical signal applied to the dimmable glass for each different region of the same dimmable glass.

[0246] For example, the dimmable glass includes a side windshield located on the driver's side of the vehicle. In this case, adjusting the switching speed of the electrical signal applied to the dimmable glass for different regions of the same dimmable glass specifically means adjusting the switching speed of the electrical signal applied to the side windshield for each region, so that the switching speed of a portion of the side windshield located on the front side is lower than that of a portion of the side windshield located on the rear side. This avoids problems with driving safety caused by abrupt changes in light intensity.

[0247] For example, the dimmable glass includes a sunroof glass located on the upper side of the vehicle. In this case, adjusting the switching speed of the electrical signal applied to the dimmable glass for different regions of the same dimmable glass specifically means adjusting the switching speed of the electrical signal applied to the sunroof glass for each region so that the switching speed of one region of the sunroof glass differs from that of other regions of the sunroof glass. For example, the user can independently select the switching speed of each region, enabling display effects such as fly-in, chessboard, and folding of the sunroof glass. This can enhance the immersive and immersive experience of the sunroof glass.

[0248] Figure 17 is a flowchart of a control method for a dimmable glass system according to another exemplary embodiment of the present disclosure. The control method includes steps S1710 to S1730.

[0249] In step S1710, the luminous intensity is acquired by a detector mounted on the vehicle. As another example, in step S1710, the luminous intensity of the area where the dimmable glass is located can be acquired by a detector mounted on the vehicle, and the vehicle's position information can be acquired by a positioning sensor.

[0250] In step S1720, the acquired luminous intensity is used as input to determine luminous intensity change information, and this luminous intensity change information is compared with a predetermined luminous intensity change threshold. Here, the luminous intensity change information includes at least one of the change in luminous intensity value and the rate of change in luminous intensity. As another example, in step S1720, the acquired luminous intensity and location information can be used as input and compared with a predetermined luminous intensity change threshold and a geographic location range.

[0251] In step S1730, a control command is output in response to the luminous intensity change information satisfying predetermined conditions, and this control command is used to perform adjustments to the light transmittance of the dimmable glass based on transmittance adjustment information. Of these, the transmittance adjustment information includes adjusting at least one of the magnitude and rate of change of the light transmittance of the dimmable glass. Alternatively, for example, in step S1730, a control command may be output in response to the luminous intensity change information satisfying predetermined conditions and / or the position information satisfying predetermined conditions.

[0252] It should be noted that in the embodiments relating to this disclosure, some of the steps in the above manufacturing method can be performed individually or in combination, and can be performed in parallel or sequentially, and are not limited to the specific order of operation shown in the illustrations.

[0253] While several embodiments of the overall inventive concept of this disclosure have been illustrated and described, those skilled in the art will understand that modifications can be made to these embodiments without departing from the principles and spirit of the overall inventive concept of this disclosure, and that the scope of this disclosure is limited by the claims and its equivalents.

Claims

1. A method for controlling a dimmable glass system used in a vehicle, The dimmable glass system comprises dimmable glass installed in the vehicle, The control method described above is To obtain luminosity change information including at least one of the change in luminosity value and the rate of change in luminosity, This includes performing an adjustment to the light transmittance of the dimmable glass based on transmittance adjustment information in response to the light intensity change information satisfying predetermined conditions, The transmittance adjustment information includes adjusting at least one of the magnitude and rate of change of the light transmittance of the dimmable glass. A control method for dimmable glass systems used in vehicles.

2. The control method further includes determining the transmittance adjustment information according to a first mapping relationship between predetermined luminosity change information and light transmittance adjustment information in response to the luminosity change information satisfying predetermined conditions, The determined transmittance adjustment information corresponds to the luminosity change information that satisfies predetermined conditions in the first mapping relationship. The method according to claim 1.

3. Performing an adjustment to the light transmittance of the dimmable glass includes performing an adjustment to the light transmittance of the dimmable glass by performing an adjustment to the electrical signal applied to the dimmable glass, and the adjustment includes adjusting the electrical signal based on electrical signal adjustment information. The method according to claim 1 or 2.

4. The electrical signal adjustment information includes adjusting at least one of the amplitude and switching speed of the electrical signal applied to the dimmable glass. The method according to claim 3.

5. The control method further includes determining the electrical signal adjustment information according to a second mapping relationship between predetermined luminous intensity change information and electrical signal adjustment information in response to the luminous intensity change information satisfying predetermined conditions, wherein the determined electrical signal adjustment information corresponds to the luminous intensity change information that satisfies predetermined conditions in the second mapping relationship. The method according to claim 3 or 4.

6. The luminosity change information satisfying the predetermined conditions includes the absolute value of the difference between the detected actual luminosity value and the predetermined luminosity value exceeding a first predetermined luminosity difference threshold. The method according to any one of claims 1 to 5.

7. For the aforementioned luminosity change information to satisfy a predetermined condition, it includes the absolute value of the difference between the actual luminosity values ​​detected at two time points exceeding a second predetermined luminosity difference threshold. The method according to any one of claims 1 to 5.

8. The condition that the aforementioned luminosity change information satisfies a predetermined condition includes the luminosity change rate exceeding a predetermined luminosity change rate threshold. The method according to any one of claims 1 to 7.

9. In response to the aforementioned change in light intensity information satisfying predetermined conditions, performing an adjustment to the light transmittance of the dimmable glass based on transmittance adjustment information means, specifically, This includes reducing the light transmittance of the dimmable glass in response to the light intensity increase information satisfying predetermined conditions. The method according to any one of claims 1 to 8.

10. In response to the aforementioned change in light intensity information satisfying predetermined conditions, performing an adjustment to the light transmittance of the dimmable glass based on transmittance adjustment information means, specifically, This includes increasing the light transmittance of the dimmable glass in response to the light intensity decrease information satisfying predetermined conditions. The method according to any one of claims 1 to 9.

11. In response to the aforementioned change in light intensity information satisfying predetermined conditions, performing an adjustment to the light transmittance of the dimmable glass based on transmittance adjustment information means, specifically, This includes increasing the light transmittance of the dimmable glass in response to the light intensity increase information satisfying predetermined conditions. The method according to any one of claims 1 to 8.

12. During a continuous period of time, the rate of change of light intensity exceeds a predetermined threshold for the rate of change of light intensity, the continuous period of time includes a start time and an end time, and there is a time between the start time and the end time when the rate of change of light intensity is greatest, and the rate of change of light intensity at the time when the rate of change of light intensity is greatest is the maximum value of the rate of change of light intensity during the continuous period of time. The start adjustment time for performing adjustments to the electrical signal applied to the dimmable glass is one time selected from the start time, the time when the rate of change of light intensity is greatest, and the end time. The method according to any one of claims 3 to 11.

13. Performing adjustments to the electrical signal applied to the dimmable glass includes adjusting the electrical signal applied to the dimmable glass at a constant switching speed. The method according to any one of claims 3 to 12.

14. Performing adjustments to the electrical signal applied to the dimmable glass is, In response to the light intensity increase information satisfying predetermined conditions, the electrical signal applied to the dimmable glass is adjusted at a first constant switching speed, This includes adjusting the electrical signal applied to the dimmable glass at a second constant switching speed in response to the light intensity decrease information satisfying predetermined conditions. The method according to any one of claims 3 to 12.

15. The second constant switching speed is smaller than the first constant switching speed. The method according to claim 14.

16. Performing adjustments to the electrical signal applied to the dimmable glass includes adjusting the electrical signal applied to the dimmable glass at a variable switching speed. The method according to any one of claims 3 to 12.

17. The acquisition of the aforementioned luminosity change information includes acquiring the rate of change in luminosity, Determining the electrical signal adjustment information according to a second mapping relationship between predetermined luminosity change information and electrical signal adjustment information includes determining the switching speed of the electrical signal according to a second mapping relationship between predetermined luminosity change information and electrical signal adjustment information, wherein the determined switching speed of the electrical signal corresponds to the luminosity change speed in the second mapping relationship. Performing adjustments to the electrical signal applied to the dimmable glass includes performing adjustments to the electrical signal applied to the dimmable glass based on the determined switching speed of the electrical signal. The method according to claim 16.

18. Acquiring the aforementioned light intensity change information includes acquiring the light intensity change information during the process of the vehicle passing through the entrance to a sealed space. The method according to any one of claims 1 to 17.

19. The luminosity change information satisfying the predetermined conditions includes the actual luminosity value detected outside the sealed space being higher than a first predetermined luminosity threshold, and / or the actual luminosity value detected inside the sealed space being lower than a second predetermined luminosity threshold. The method according to claim 18.

20. Acquiring the aforementioned light intensity change information includes acquiring the light intensity change information during the process of the vehicle passing through the exit of the sealed space. The method according to any one of claims 1 to 19.

21. The luminosity change information satisfying the predetermined conditions includes the actual luminosity value detected inside the sealed space being lower than a third predetermined luminosity threshold, and / or the actual luminosity value detected outside the sealed space being higher than a fourth predetermined luminosity threshold. The method according to claim 20.

22. The aforementioned method, To obtain the location information of the aforementioned vehicle, This further includes pre-adjusting the electrical signal applied to the dimmable glass based on acquired position information, thereby pre-adjusting the light transmittance of the dimmable glass. The method according to any one of claims 1 to 21.

23. Pre-adjusting the electrical signal applied to the dimmable glass based on acquired location information specifically includes pre-adjusting the electrical signal applied to the dimmable glass at a constant switching speed during the process of the vehicle passing through the entrance or exit of a sealed space. The method according to claim 22.

24. Specifically, performing pre-adjustment on the electrical signal applied to the dimmable glass based on acquired location information means: The process includes pre-adjusting the electrical signal applied to the dimmable glass with a variable switching speed as the vehicle passes through the entrance or exit of a sealed space, wherein the variable switching speed is determined based on the vehicle's speed. The method according to claim 22.

25. Performing adjustments to the electrical signal applied to the dimmable glass includes performing adjustments to the switching speed of the electrical signal applied to the dimmable glass based on acquired position information. The method according to claim 22.

26. Specifically, adjusting the switching speed of the electrical signal applied to the dimmable glass according to the acquired location information means: The process of the vehicle passing through the entrance to a sealed space includes adjusting the switching speed of the electrical signal to a first switching speed, wherein the first switching speed is higher than a predetermined switching speed. The method according to claim 25.

27. Specifically, adjusting the switching speed of the electrical signal applied to the dimmable glass according to the acquired location information means: The process of the vehicle passing through the exit of a sealed space includes adjusting the switching speed of the electrical signal to a second switching speed, wherein the second switching speed is lower than a predetermined switching speed. The method according to claim 25.

28. Specifically, adjusting the switching speed of the electrical signal applied to the dimmable glass according to the acquired location information means: The vehicle is in a first environment, and in the process of the vehicle's user leaving the vehicle, the switching speed of the electrical signal is adjusted to a third switching speed, the third switching speed is lower than a predetermined switching speed, the first environment is an environment familiar to the vehicle's user, and / or The vehicle is in a second environment, and in the process of the vehicle's user leaving the vehicle, the switching speed of the electrical signal is adjusted to a fourth switching speed, the fourth switching speed being higher than a predetermined switching speed, and the second environment being an environment unfamiliar to the vehicle's user. The method according to claim 25.

29. Adjusting the electrical signal applied to the dimmable glass includes adjusting the switching speed of the electrical signal applied to the dimmable glass in accordance with the vehicle speed while the vehicle is in operation, wherein the switching speed of the electrical signal is inversely proportional to the vehicle speed. The method according to any one of claims 3 to 28.

30. Performing adjustments to the electrical signal applied to the dimmable glass includes adjusting the switching speed of the electrical signal applied to the dimmable glass for different regions of the same dimmable glass. The method according to any one of claims 3 to 29.

31. The dimmable glass includes a side windshield located on the driver's side of the vehicle. Specifically, adjusting the switching speed of the electrical signal applied to the dimmable glass in different regions of the same dimmable glass means: The method includes adjusting the switching speed of the electrical signals applied to the side windshield for each region such that the switching speed of a portion of the side windshield located at the front is lower than the switching speed of a portion of the side windshield located at the rear. The method according to claim 30.

32. The aforementioned dimmable glass includes a sunroof glass located on the upper side of the vehicle. Specifically, adjusting the switching speed of the electrical signal applied to the dimmable glass in different regions of the same dimmable glass means: This includes adjusting the switching speed of the electrical signal applied to the sunroof glass for each region so that the switching speed of one region of the sunroof glass differs from the switching speed of another region of the sunroof glass. The method according to claim 30.

33. The aforementioned dimmable glass includes the front windshield, rear windshield, sunroof glass, sun visors, and all side windshields of the vehicle. Specifically, adjusting the light transmittance of the dimmable glass by adjusting the electrical signal applied to the dimmable glass means: This includes adjusting the electrical signals applied to at least one of the vehicle's front windshield, rear windshield, sunroof glass, sun visors, and all side windshields to adjust the light transmittance of at least one of the vehicle's front windshield, rear windshield, sunroof glass, sun visors, and all side windshields. The method according to any one of claims 3 to 32.

34. A method for controlling a dimmable glass system used in a vehicle, The dimmable glass system comprises dimmable glass installed in the vehicle, The control method described above is The acquisition of at least one of light intensity change information and vehicle position change information, wherein the light intensity change information includes at least one of the light intensity value change and the light intensity change rate, In response to the luminous intensity change information satisfying a first predetermined condition and / or the vehicle position change information satisfying a first position condition, a first adjustment is performed on the light transmittance of the dimmable glass, and the first adjustment includes performing an adjustment on the light transmittance of the dimmable glass based on first transmittance adjustment information. After performing a first adjustment on the light transmittance information of the dimmable glass, a second adjustment is performed on the light transmittance information of the dimmable glass in response to the light intensity change information satisfying a second predetermined condition, wherein the second adjustment includes performing an adjustment on the light transmittance of the dimmable glass based on the second transmittance adjustment information. Here, the first transmittance adjustment information and the second transmittance adjustment information each include adjusting at least one of the magnitude and rate of change of the light transmittance of the dimmable glass. A control method for dimmable glass systems used in vehicles.

35. The control method further includes performing a second adjustment on the light transmittance information of the dimmable glass, and then performing a third adjustment on the light transmittance information of the dimmable glass in response to the light intensity change information satisfying a third predetermined condition and / or the vehicle position change information satisfying a second position condition, wherein the third adjustment includes performing an adjustment on the light transmittance of the dimmable glass based on the third transmittance adjustment information. The third transmittance adjustment information includes adjusting at least one of the magnitude and rate of change of the light transmittance of the dimmable glass. The method according to claim 34.

36. The control method further includes performing a third adjustment on the light transmittance information of the dimmable glass, and then performing a fourth adjustment on the light transmittance information of the dimmable glass in response to the light intensity change information satisfying the fourth predetermined condition, wherein the fourth adjustment includes performing an adjustment on the light transmittance of the dimmable glass based on the fourth transmittance adjustment information. The fourth transmittance adjustment information includes adjusting at least one of the magnitude and rate of change of the light transmittance of the dimmable glass. The method according to claim 35.

37. The control method further includes: In response to the luminosity change information satisfying a first predetermined condition, the first transmittance adjustment information is determined according to a first mapping relationship between predetermined luminosity change information and light transmittance adjustment information, wherein the first transmittance adjustment information corresponds to the luminosity change information that satisfies the first predetermined condition in the first mapping relationship, and / or In response to the luminosity change information satisfying a second predetermined condition, the second transmittance adjustment information is determined according to a first mapping relationship between predetermined luminosity change information and light transmittance adjustment information, wherein the second transmittance adjustment information corresponds to the luminosity change information that satisfies the second predetermined condition in the first mapping relationship, and / or In response to the luminosity change information satisfying a third predetermined condition, the third transmittance adjustment information is determined according to a first mapping relationship between predetermined luminosity change information and light transmittance adjustment information, wherein the third transmittance adjustment information corresponds to the luminosity change information that satisfies the third predetermined condition in the first mapping relationship, and / or The process includes determining the fourth transmittance adjustment information in accordance with a first mapping relationship between predetermined luminosity change information and light transmittance adjustment information in response to the luminosity change information satisfying a fourth predetermined condition, wherein the fourth transmittance adjustment information corresponds to the luminosity change information that satisfies the fourth predetermined condition in the first mapping relationship. The method according to any one of claims 34 to 36.

38. Performing a first adjustment to the light transmittance of the dimmable glass means performing a first adjustment to the electrical signal applied to the dimmable glass, and the first adjustment includes adjusting the electrical signal based on first electrical signal adjustment information, and / or Performing a second adjustment to the light transmittance of the dimmable glass means performing a second adjustment to the electrical signal applied to the dimmable glass, and the second adjustment includes adjusting the electrical signal based on second electrical signal adjustment information, and / or Performing a third adjustment on the light transmittance of the dimmable glass means performing a third adjustment on the electrical signal applied to the dimmable glass, and the third adjustment includes adjusting the electrical signal based on third electrical signal adjustment information, and / or Performing a fourth adjustment on the light transmittance of the dimmable glass involves performing a fourth adjustment on the electrical signal applied to the dimmable glass, and the fourth adjustment includes adjusting the electrical signal based on the fourth electrical signal adjustment information. The method according to any one of claims 34 to 37.

39. Each of the first electrical signal adjustment information, the second electrical signal adjustment information, the third electrical signal adjustment information, and the fourth electrical signal adjustment information includes adjusting at least one of the amplitude and switching speed of the electrical signal applied to the dimmable glass. The method according to claim 38.

40. The control method further includes, In response to the luminosity change information satisfying a first predetermined condition, the first electrical signal adjustment information is determined according to a second mapping relationship between predetermined luminosity change information and electrical signal adjustment information, wherein the first electrical signal adjustment information corresponds to the luminosity change information satisfying the first predetermined condition in the second mapping relationship, and / or In response to the luminosity change information satisfying a second predetermined condition, the second electrical signal adjustment information is determined according to a second mapping relationship between predetermined luminosity change information and electrical signal adjustment information, wherein the second electrical signal adjustment information corresponds to the luminosity change information that satisfies the second predetermined condition in the second mapping relationship, and / or In response to the luminosity change information satisfying a third predetermined condition, the third electrical signal adjustment information is determined according to a second mapping relationship between predetermined luminosity change information and electrical signal adjustment information, wherein the third electrical signal adjustment information corresponds to the luminosity change information that satisfies the third predetermined condition in the second mapping relationship, and / or In response to the luminosity change information satisfying a fourth predetermined condition, the fourth electrical signal adjustment information is determined according to a second mapping relationship between predetermined luminosity change information and electrical signal adjustment information, wherein the fourth electrical signal adjustment information corresponds to the luminosity change information that satisfies the fourth predetermined condition in the second mapping relationship. The method according to claim 38 or 39.

41. The control method further includes, In response to the vehicle position change information satisfying the first position condition, the first transmittance adjustment information is determined according to a third mapping relationship between predetermined vehicle position change information and light transmittance adjustment information, and the first transmittance adjustment information corresponds to the vehicle position change information satisfying the first position condition in the third mapping relationship, and / or The process includes determining the third transmittance adjustment information according to a third mapping relationship between predetermined vehicle position change information and light transmittance adjustment information in response to the vehicle position change information satisfying a second position condition, wherein the third transmittance adjustment information corresponds to the vehicle position change information that satisfies the second position condition in the third mapping relationship. The method according to any one of claims 34 to 40.

42. The vehicle position change information satisfies the first position condition, which includes the vehicle being outside the enclosed space and the distance between the vehicle and the entrance to the enclosed space being less than or equal to a first predetermined distance, and / or The vehicle position change information satisfies the second position condition, which includes the fact that the vehicle is inside a sealed space and the distance between the vehicle and the exit of the sealed space is less than or equal to the second predetermined distance. The method according to any one of claims 34 to 41.

43. A method for controlling a dimmable glass system used in a vehicle, The dimmable glass system comprises dimmable glass installed in the vehicle, The control method described above is Obtaining light intensity via a detector mounted on the vehicle, The acquired luminous intensity is used as input to determine luminous intensity change information, the luminous intensity change information is compared with a predetermined luminous intensity change threshold, and the luminous intensity change information includes at least one of the change in luminous intensity value and the rate of change in luminous intensity. The system outputs a control command in response to the light intensity change information satisfying predetermined conditions, and the control command includes performing an adjustment to the light transmittance of the dimmable glass based on the transmittance adjustment information. The transmittance adjustment information includes adjusting at least one of the magnitude and rate of change of the light transmittance of the dimmable glass. A control method for dimmable glass systems used in vehicles.

44. The control method further includes acquiring the vehicle's location information. The aforementioned input further includes acquired location information The method according to claim 43.

45. A dimmable glass system used in vehicles, A dimmable glass mounted on a vehicle, comprising a first base substrate and a second base substrate arranged facing each other, a first electrode disposed on the first base substrate, a second electrode disposed on the second base substrate, and a dimmable component sandwiched between the first base substrate and the second base substrate, The controller includes a controller electrically connected to the first and second electrodes of the dimmable glass, A dimmable glass system wherein the controller is configured to perform the control method described in any one of claims 1 to 44.

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