Apparatus for changing light transmittance of vehicle sunroof, sunroof assembly, method for adjusting light transmittance of vehicle sunroof, system, vehicle and program product

Abstract

The invention relates to the field of vehicle sunroofs, in particular to a device (3) for changing the light transmittance of a sunroof (2) of a vehicle (1), which device (3) is arranged at an edge region of the sunroof (2), the device (3) comprising an application unit (31), the application unit (31) is configured for applying, to an inner surface (21) of the sunroof (2), a first substance adapted to adhere to the inner surface (21) of the sunroof (2) to form a coating (4), where the coating (4) has a lower light transmittance than an original light transmittance of the sunroof (2). The invention further relates to a sunroof assembly, to a method and to a corresponding system for adjusting the light transmittance of a sunroof of a vehicle, to a vehicle and to a computer program product. According to the invention, the space between the sunroof and the head of a passenger can be increased, and the light transmittance of the sunroof can be adjusted based on the request of a user in a particularly simple and reliable manner, so that the driving comfort of the user is improved.

Description

Technical Field

[0001] The present invention relates to the field of vehicle sunroofs, and more particularly to a device for changing the light transmittance of a sunroof of a vehicle. In addition, the present invention also relates to a sunroof assembly for a vehicle, a method for adjusting the light transmittance of a sunroof of a vehicle and a corresponding system, a vehicle and a computer program product. Background Art

[0002] As vehicles enter thousands of households, they are no longer just a means of transportation. Users have higher and higher requirements for vehicles. Modern vehicles are usually equipped with sunroofs, especially panoramic sunroofs. In addition to providing additional ventilation, sunroofs can also allow sunlight to enter the car through the sunroof, which can provide more brightness in the car and improve the user experience.

[0003] However, in the case of strong sunlight, such as at noon on a sunny summer day, the light intensity is high and the light entering through the sunroof may cause glare due to excessive brightness inside the vehicle, which not only affects the user's vision but also increases the danger when driving the vehicle. On the other hand, due to the high light intensity, the room temperature inside the vehicle will rise rapidly, which is particularly disadvantageous when driving a vehicle in summer.

[0004] Some vehicles are equipped with sunroof roller blinds that can be freely extended and retracted to block sunlight in strong light conditions to prevent it from entering the vehicle through the sunroof. However, on the one hand, such roller blinds that completely block the sunroof cannot be adjusted for different light intensities, and on the other hand, since they occupy a certain space under the sunroof, they also reduce the space between the user or passenger's head and the sunroof. In addition, users cannot adaptively adjust the light transmittance of the sunroof based on their personal preferences.

[0005] Therefore, there is still a need for improvement in the prior art to address at least some of the above issues. Summary of the invention

[0006] Based on this, the present invention proposes an efficient solution, which can not only overcome the deficiencies in the prior art solutions, but also improve driving safety and comfort, thereby increasing user acceptance and satisfaction with vehicle products.

[0007] According to a first aspect of the present invention, there is provided an apparatus for changing the light transmittance of a sunroof of a vehicle, the apparatus being arranged at an edge region of the sunroof, wherein the apparatus comprises an applying unit configured to apply a first substance suitable for adhering to the inner surface of the sunroof to form a coating, to an inner surface of the sunroof, wherein the coating has a light transmittance lower than an original light transmittance of the sunroof.

[0008] The basic concept of the present invention is that, through the solution of the present invention, a coating can be applied, for example, by spraying, on the inner surface of the sunroof to change the original light transmittance of the sunroof, thereby being able to flexibly and reliably change the light transmittance of the sunroof based on the different needs of users, thereby not only satisfying the user's desired brightness inside the car by adjusting the light transmittance of the sunroof, but also increasing the space between the sunroof and the user's head, thereby improving driving comfort.

[0009] Advantageous configurations of the technical solution of the present invention can be obtained from the following optional implementations.

[0010] According to an optional embodiment of the device of the present invention, the device further comprises a cleaning unit, which is configured to apply a second substance to the covering layer, wherein the second substance is suitable for at least partially cleaning the first substance to improve the light transmittance of the skylight.

[0011] According to an optional embodiment of the device of the present invention, the application unit includes at least one first nozzle, a first pipeline, a first storage device and a first conveying device, the first substance is supplied and stored in the first storage device, the first substance is conveyed to the first nozzle via the first pipeline with the help of the first conveying device and is sprayed toward the inner surface of the skylight with the help of the first nozzle.

[0012] According to an optional embodiment of the device of the present invention, the cleaning unit includes at least one second nozzle, a second pipeline, a second storage device and a second conveying device, the second storage device is supplied and stored with the second substance, the second substance is conveyed to the second nozzle via the second pipeline with the aid of the second conveying device and is sprayed toward the inner surface of the skylight with the aid of the second nozzle.

[0013] According to an alternative embodiment of the device according to the invention, it is provided that the first pipeline and / or the second pipeline is arranged in the roof interior trim along the entire circumferential direction of the sunroof.

[0014] According to an alternative embodiment of the device according to the invention, it is provided that the first pipeline and the second pipeline are arranged one on top of the other in the vertical direction.

[0015] According to an alternative embodiment of the device according to the invention, it is provided that the first line is designed integrally with the second line.

[0016] According to an alternative embodiment of the device according to the present invention, it is provided that the first pipeline and the second pipeline are configured as a common pipeline.

[0017] According to an alternative embodiment of the device according to the invention, it is provided that the first conveying device and the second conveying device are designed to be integral.

[0018] According to an alternative embodiment of the device according to the invention, it is provided that the first conveying device and the second conveying device are designed as a common conveying device.

[0019] According to an alternative embodiment of the device according to the invention, it is provided that the first conveying device is integrated into the first storage device and / or the second conveying device is integrated into the second storage device.

[0020] According to an alternative embodiment of the device of the present invention, a plurality of first nozzles are arranged on the inner circumference of the first pipeline, and the plurality of first nozzles are arranged spaced apart from each other, in particular spaced at the same distance, along the entire inner circumference of the first pipeline.

[0021] According to an alternative embodiment of the device of the present invention, a plurality of second nozzles are arranged on the inner circumference of the second pipeline, and the plurality of second nozzles are arranged spaced apart from each other, in particular spaced at the same distance, along the entire inner circumference of the second pipeline.

[0022] According to an alternative embodiment of the device according to the invention, it is provided that the second substance reacts chemically with the first substance in order to remove the coating at least partially from the inner surface of the skylight.

[0023] According to an optional embodiment of the device of the present invention, the device further comprises a suction unit configured to suck and collect chemical reactants of the second substance and the first substance.

[0024] According to an optional embodiment of the device of the present invention, the suction unit includes at least one suction port, a third pipeline, a negative pressure device and a collecting device, the suction port is arranged on the third pipeline and is fluidically connected to the collecting device, the negative pressure device is configured to generate a negative pressure in the third pipeline, and with the help of the generated negative pressure, the chemical reactant is sucked into the third pipeline via the suction port and collected in the collecting device.

[0025] According to an alternative embodiment of the device according to the invention, it is provided that the third pipeline is arranged in the roof interior trim along the entire circumferential direction of the sunroof.

[0026] According to an alternative embodiment of the device of the present invention, it is provided that the third pipeline and the first pipeline and / or the second pipeline are stacked one on top of the other in the vertical direction.

[0027] According to an alternative embodiment of the device according to the invention, it is provided that the third line is designed to be integrated with the first line and / or the second line.

[0028] According to an alternative embodiment of the device according to the present invention, it is provided that the third pipeline is designed as a common pipeline with the first pipeline and / or the second pipeline.

[0029] According to an alternative embodiment of the device of the present invention, a plurality of suction openings are arranged on the third pipeline, and the plurality of suction openings are arranged spaced apart from each other along the entire inner circumference of the second pipeline, in particular arranged at the same distance.

[0030] According to an alternative embodiment of the device according to the invention, it is provided that the number of the suction openings is greater than the number of the first nozzles and / or the number of the second nozzles.

[0031] According to an optional embodiment of the device of the present invention, it is provided that the third pipeline is arranged below the first pipeline and the second pipeline in the vertical direction.

[0032] According to an alternative embodiment of the device according to the invention, it is provided that the first substance and / or the second substance is a fluid.

[0033] According to an alternative embodiment of the device according to the invention, it is provided that the first substance has a dark color.

[0034] According to an alternative embodiment of the device according to the invention, it is provided that the first substance is a ferric tannate solution and the second substance is a citric acid solution.

[0035] According to an alternative embodiment of the device of the present invention, it is provided that the first substance is a solution of ferrosoferric oxide nanoparticles and the second substance is an ascorbic acid solution.

[0036] According to an alternative embodiment of the device according to the present invention, it is provided that the device further comprises a supply unit, which is configured and adapted to supply the first substance to the first storage device and / or supply the second substance to the second storage device.

[0037] According to an alternative embodiment of the device according to the invention, it is provided that the supply unit comprises a first filling opening, via which the first substance is supplied to the first storage device, and a second filling opening, via which the second substance is supplied to the second storage device.

[0038] According to an optional embodiment of the device of the present invention, the supply unit includes a reduction device, a separation device and a supply device, the reduction device is fluidly connected to the collection device of the suction unit and is configured to receive the chemical reactants collected in the collection device and reduce them into the first substance and the second substance, the separation device is configured to be suitable for separating the first substance from the second substance, and the supply device is configured to be suitable for supplying the separated first substance to the first storage device and / or supplying the separated second substance to the second storage device.

[0039] According to a second aspect of the invention, there is provided a sunroof assembly for a vehicle, the sunroof assembly comprising a sunroof and a device according to the invention.

[0040] According to an optional embodiment of the sunroof assembly of the present invention, the device also includes a cover element, which is arranged on the roof interior so that a closed cavity is formed between the cover element and the inner surface of the sunroof, wherein the cover element has the same original light transmittance as the sunroof.

[0041] According to a third aspect of the present invention, there is provided a method for adjusting light transmittance of a sunroof of a vehicle, wherein the method comprises the following steps:

[0042] Step S110: receiving a request for adjusting the light transmittance of the skylight; and

[0043] Step S120: controlling the device according to the present invention to change the light transmittance of the skylight in response to the request.

[0044] According to an optional embodiment of the method of the present invention, step S110 further includes the following sub-steps:

[0045] Sub-step S111: receiving a brightness signal regarding the brightness of the vehicle interior environment and / or a light signal regarding sunlight exposure;

[0046] Sub-step S112: comparing the brightness signal with a brightness threshold and / or comparing the illumination signal with the illumination threshold; and

[0047] Sub-step S113: Modify the request based on the comparison result.

[0048] According to an optional embodiment of the method of the present invention, step S110 further includes the following sub-steps:

[0049] Step S114: detecting a first storage amount of a first substance and / or a second storage amount of a second substance of the device;

[0050] Step S115: comparing the required amount of the first substance based on the requested transmittance with the first storage amount and / or comparing the required amount of the second substance with the second storage amount; and

[0051] Step S116: outputting a prompt for replenishing the first substance and / or the second substance based on the comparison result.

[0052] According to an alternative embodiment of the method according to the invention, it is provided that the suction unit and the removal unit of the device are operated simultaneously.

[0053] According to an alternative embodiment of the method according to the invention, it is provided that the removal unit of the device is operated with a predetermined delay time relative to the suction unit.

[0054] According to an optional embodiment of the method of the present invention, the required amount of the first substance and / or the required amount of the second substance is calculated based on the difference between the requested transmittance and the current transmittance, wherein a curve of the transmittance change and the amount of the first substance and / or the amount of the second substance is retrieved in step S115.

[0055] According to an optional implementation of the method of the present invention, the request includes reducing the light transmittance of the skylight or increasing the light transmittance of the skylight.

[0056] According to an optional implementation of the method of the present invention, it is provided that the request is input by means of a user interface, such as a central control screen, for example, by voice input or by touch input.

[0057] According to an alternative embodiment of the method according to the invention, it is provided that the removal unit and the suction unit of the device are operated simultaneously.

[0058] According to an alternative embodiment of the method according to the invention, it is provided that the light transmittance of the skylight can be adjusted in steps.

[0059] According to an alternative embodiment of the method according to the invention, it is provided that the light transmittance of the skylight can be continuously adjusted.

[0060] According to a fourth aspect of the present invention, a system for adjusting the light transmittance of a sunroof of a vehicle is provided, the system being configured to be suitable for performing the method according to the present invention, wherein the system comprises:

[0061] a communication module configured to receive a request for adjusting light transmittance of the sunroof;

[0062] A device according to the invention or a sunroof assembly according to the invention; and

[0063] A control module is configured to control the device based on the request to adjust the light transmittance of the sunroof.

[0064] According to an optional embodiment of the system of the present invention, the system further comprises a sensor module, which is data-connected to the control module and comprises an ambient light sensor and / or a light sensor, wherein the ambient light sensor is configured to detect the brightness of the vehicle interior environment.

[0065] According to an optional embodiment of the system of the present invention, the system also includes a storage module, which is configured to store a curve of transmittance change and the amount of the first substance and / or the amount of the second substance and to store a computer program product that at least assists in implementing the steps of the method according to the present invention.

[0066] According to a fifth aspect of the invention, a vehicle is provided, the vehicle comprising an apparatus according to the invention or a sunroof assembly according to the invention or a system according to the invention.

[0067] According to a sixth aspect of the present invention, there is provided a computer program product, such as a computer-readable program carrier, which includes or stores computer program instructions, which, when executed by a processor, at least assist in implementing the steps of the method according to the present invention.

[0068] Further features of the present invention become apparent from the claims, the drawings and the description of the drawings. The features and feature combinations mentioned in the above description and the features and feature combinations mentioned in the following description of the drawings and / or shown only in the drawings can be used not only in the corresponding specified combinations, but also in other combinations without departing from the scope of the present invention. Therefore, the following contents are also regarded as being covered and disclosed by the present invention: these contents are not explicitly shown in the drawings and are not explicitly explained, but are derived from combinations consisting of separate features from the explained contents and are generated by these combinations. The following contents and feature combinations are also regarded as being disclosed: they do not have all the features of the originally drafted independent claims. In addition, the following contents and feature combinations are regarded as being particularly disclosed by the above contents: they exceed or deviate from the feature combinations defined in the reference relationship of the claims. BRIEF DESCRIPTION OF THE DRAWINGS

[0069] The present invention will be described in more detail below with reference to the accompanying drawings, so that the principles, features and advantages of the present invention can be better understood. In the accompanying drawings:

[0070] Figure 1 A schematic diagram showing an exemplary embodiment of a vehicle according to the invention;

[0071] Figure 2 Show Figure 1A partial schematic diagram of an interior roof of a vehicle and an exemplary embodiment of a sunroof assembly according to the present invention, wherein the light transmittance of the sunroof is not adjusted;

[0072] Figure 3 A schematic diagram showing an exemplary embodiment of an apparatus for changing the light transmittance of a sunroof of a vehicle according to the present invention;

[0073] Figure 4 Show Figure 3 A schematic cross-sectional view of the arrangement of the device in the roof interior trim;

[0074] Figure 5 Show Figure 4 A partial schematic diagram of

[0075] Figure 6 A schematic cross-sectional view showing the arrangement of another embodiment of the apparatus for changing the light transmittance of a sunroof of a vehicle according to the present invention in a roof interior trim;

[0076] Figure 7 Show Figure 1 Another partial schematic diagram of the interior roof of the vehicle, wherein the light transmittance of the skylight is adjusted;

[0077] Figure 8 Show Figure 7 A schematic cross-sectional view of a skylight in which a coating is applied to the inner surface of the skylight;

[0078] Fig. 9 A schematic diagram showing another exemplary embodiment of a sunroof assembly according to the present invention;

[0079] Fig.10 A schematic diagram showing an exemplary embodiment of a system for adjusting light transmittance of a sunroof of a vehicle according to the present invention;

[0080] Fig.11 A flow chart showing an exemplary embodiment of a method for adjusting light transmittance of a sunroof of a vehicle according to the present invention;

[0081] Fig.12 A flow chart showing another exemplary embodiment of a method for adjusting light transmittance of a sunroof of a vehicle according to the present invention; and

[0082] Fig.13 A flow chart showing yet another exemplary embodiment of a method for adjusting light transmittance of a sunroof of a vehicle according to the present invention.

[0083] Reference numerals list

[0084] 1 Vehicle

[0085] 2 Skylight

[0086] 3 Equipment

[0087] 4 Sunroof components

[0088] 5. Coating

[0089] 11 Roof Interior Parts

[0090] 21 Inner surface of skylight

[0091] 31 Application unit

[0092] 32 Clearing Unit

[0093] 33 Suction unit

[0094] 34 Supply Units

[0095] 41 Cover element

[0096] 42 Cavity

[0097] 100 Methods

[0098] 200 Systems

[0099] 210 Communication module

[0100] 220 Control Module

[0101] 230 Sensor Module

[0102] 240 Storage Module

[0103] 311 First Nozzle

[0104] 312 First pipeline

[0105] 313 First storage device

[0106] 314 First conveying device

[0107] 321 Second Nozzle

[0108] 322 Second pipeline

[0109] 323 Second storage device

[0110] 324 Second conveying device

[0111] 331 Suction port

[0112] 332 Third pipeline

[0113] 333 Negative pressure device

[0114] 334 Collection Device

[0115] 341 First filling opening

[0116] 342 Second filling opening

[0117] 343 Restore Device

[0118] 344 Separation device

[0119] 345 Supply device

[0120] XYZ XYZ coordinate system DETAILED DESCRIPTION

[0121] In order to make the technical problems, technical solutions and beneficial technical effects to be solved by the present invention more clearly understood, the present invention will be further described in detail below in conjunction with the accompanying drawings and multiple exemplary embodiments. It should be understood that the specific embodiments described herein are only used to explain the present invention and are not used to limit the scope of protection of the present invention.

[0122] In this specification, for the sake of convenience, the words and phrases indicating the orientation or positional relationship such as "middle", "upper", "lower", "front", "back", "vertical", "horizontal", "top", "bottom", "inside", "outside" and the like are used to illustrate the positional relationship of the constituent elements with reference to the drawings. This is only for the convenience of describing this specification and simplifying the description, and does not indicate or imply that the device or element referred to has a specific orientation, is constructed and operates in a specific orientation, and therefore cannot be understood as a limitation of the present disclosure. The positional relationship of the constituent elements is appropriately changed according to the direction of describing each constituent element. Therefore, it is not limited to the words and phrases described in the specification, and can be appropriately replaced according to the situation.

[0123] Hereinafter, various embodiments of the present invention will be described in detail with reference to the accompanying drawings.

[0124] Figure 1 A schematic diagram of an exemplary embodiment of a vehicle 1 according to the invention is shown.

[0125] The vehicle 1 is exemplarily configured as a passenger vehicle, such as a fuel vehicle or an electric vehicle. The vehicle 1 includes a sunroof 2 arranged on the roof. In this embodiment, the sunroof 2 is configured as a panoramic sunroof and is exemplarily a closed integral panoramic sunroof. However, the sunroof 2 may also be other types of sunroofs, such as a segmented sunroof or an open sunroof, etc. Here, the sunroof 2 is made of glass material and has an original light transmittance corresponding to the glass material. However, in the present invention, the sunroof 2 is not limited to glass material, and may also be made of other materials with light transmittance.

[0126] In the present invention, the “original light transmittance” may be understood as the light transmittance of the material of the skylight 2 itself, and may be quantified or calibrated as a light transmittance of 100%.

[0127] In addition, Figure 1 2 also shows an XYZ coordinate system, wherein X represents the travel direction or the longitudinal direction of the vehicle 1 , Y represents the lateral direction of the vehicle 1 , and Z represents the vertical direction of the vehicle 1 .

[0128] Figure 2 Show Figure 1 FIG. 4 is a partial schematic diagram of an interior roof of a vehicle 1 and an exemplary embodiment of a sunroof assembly 4 according to the present invention, wherein the light transmittance of the sunroof 2 is not adjusted.

[0129] like Figure 2 As shown, according to this embodiment, the sunroof assembly 4 includes a sunroof 2 and a device 3. The device 3 is arranged in the roof trim 11 at an edge region of the sunroof 2 and is configured to change the light transmittance of the sunroof 2.

[0130] Next, combine Figures 3 to 8 Various embodiments of the device 3 for changing the light transmittance of the sunroof 2 of the vehicle 1 according to the present invention are described in detail.

[0131] Figure 3 A schematic diagram of an exemplary embodiment of a device 3 for changing the light transmittance of a sunroof 2 of a vehicle 1 according to the invention is shown. Figure 4 Show Figure 3 Schematic sectional view of the arrangement of the device 3 in the roof interior trim 11 , cut along the Y direction. Figure 5 Show Figure 4 A partial schematic diagram of . Figure 7 Show Figure 1 Another schematic partial view of the interior roof of the vehicle 1 in FIG. 1 , wherein the light transmittance of the sunroof 2 is adjusted. Figure 8 Show Figure 7 Schematic cross-sectional view of a skylight 2 in FIG. 1 , wherein a coating 5 is applied to the inner surface 21 of the skylight 2 .

[0132] like Figure 3 As shown schematically, the device 3 may include an application unit 31. The application unit 31 is configured to apply a first substance to the inner surface 21 of the skylight 2. The first substance is in the form of a dark fluid, such as a black solution. The first substance is suitable for adhering to the inner surface 21 of the skylight 2 to form a coating 5 (see Figure 8 ). Due to the dark color of the first substance, the coating 5 has a light transmittance lower than the original light transmittance of the skylight 2. Figure 2 and Figure 7 It can be clearly seen that compared Figure 2 Skylight 2 in Figure 7 The inner surface 21 of the skylight 2 in the embodiment is applied with the first substance by the application unit 31 and forms a coating 5, thereby, Figure 7 Skylight 2 in Figure 2 The skylight 2 in the middle is dark in color.

[0133] The application unit 31 includes at least one first nozzle 311, a first pipeline 312, a first storage device 313 and a first conveying device 314. A first substance is supplied and stored in the first storage device 313. The first conveying device 314 is configured to spray the first substance to the inner surface 21 of the skylight 2 via the first pipeline 312 with the help of the first nozzle 311. The first conveying device 314 can be configured as a pump, which conveys the first substance to the first nozzle 311 in a pressurized manner, so that the first substance, for example, in the form of liquid, produces a better atomization effect when sprayed through the first nozzle 311, so that the first substance is more easily and evenly attached to the inner surface 21 of the skylight 2.

[0134] According to this embodiment, the applying unit 31 includes a plurality of first nozzles 311, which are arranged on the inner peripheral side of the first pipe 312 and are arranged at the same distance from each other along the entire inner periphery of the first pipe 312. Thus, uniform and rapid formation of the coating 5 can be ensured, thereby ensuring that the skylight 2 has substantially uniform light transmittance.

[0135] Therefore, different amounts of the first substance applied by the application unit 31 or sprayed by the first nozzle 311 can reduce the light transmittance of the sunroof 2 to different degrees.

[0136] In one embodiment, the first conveying device 314 may be integrated into the first storage device 313. This achieves a compact structure and saves space.

[0137] In order to restore the original light transmittance of the skylight 2 or improve the current light transmittance of the skylight 2, the device 3 may further include a cleaning unit 32. The cleaning unit 32 is configured to apply a second substance to the covering 5. The second substance is suitable for at least partially cleaning the first substance to improve the light transmittance of the skylight 2.

[0138] According to this embodiment, the second substance reacts chemically with the first substance, so that the coating 5 attached to the inner surface 21 of the skylight 2 is at least partially removed.

[0139] The second substance is a fluid, such as a colorless liquid.

[0140] According to one embodiment, the first substance is a dark iron tannate solution, and the second substance is a colorless citric acid solution. According to another alternative embodiment, the first substance is a dark ferrous oxide nanoparticle solution, and the second substance is a colorless ascorbic acid solution.

[0141] Here, the first substance and the second substance are merely exemplary, and any substance or material that can satisfy the requirements of the present invention for changing the light transmittance of the skylight 2 is within the protection scope of the present invention.

[0142] like Figure 3 As shown in the exemplary embodiment, the cleaning unit 32 includes at least one second nozzle 321, a second pipeline 322, a second storage device 323 and a second delivery device 324. The second storage device 323 is supplied with and stored with a second substance, and the second delivery device 324 is configured to spray the second substance toward the inner surface 21 of the skylight 2 via the second pipeline 322 by means of the second nozzle 321.

[0143] According to this embodiment, a plurality of second nozzles 321 are arranged on the inner circumference of the second pipe 322. The second nozzles 321 are arranged at the same distance from each other along the entire inner circumference of the second pipe 322. Thus, the coating 5 or the first substance attached to the inner surface 21 of the skylight 2 can be removed particularly efficiently and uniformly.

[0144] The second delivery device 324 may also be configured as a pump, which delivers the second substance to the second nozzle 321 in a pressurized manner, so that the second substance in liquid form, for example, produces a better atomization effect when sprayed through the second nozzle 321 .

[0145] In one embodiment, the second conveying device 324 may be integrated into the second storage device 323. This achieves a compact structure and saves space.

[0146] In addition, the device 3 may further include a suction unit 33. The suction unit 33 is configured to suck and collect the chemical reactants of the second substance and the first substance. Therefore, the chemical reactants of the first substance and the second substance and the possible residual first substance and / or second substance can be reliably removed to avoid affecting the in-vehicle environment and the user.

[0147] like Figure 3 As shown in an exemplary manner, the suction unit 33 includes at least one suction port 331, a third pipeline 332, a negative pressure device 333 and a collection device 334. The suction port 331 is arranged on the third pipeline 332 and is fluidly connected to the collection device 334. The negative pressure device 333 is configured to generate a negative pressure in the third pipeline 332, and with the help of the generated negative pressure, the chemical reactant is sucked into the third pipeline 332 via the suction port 331 and collected in the collection device 334.

[0148] According to this embodiment, a plurality of suction ports 331 are arranged on the third pipeline 332. The suction ports 331 are arranged at the same distance from each other along the entire inner circumference of the second pipeline 322. The number of suction ports 331 is greater than the number of first nozzles 311 and / or the number of second nozzles 321. Thus, the chemical reactants of the first substance and the second substance and any remaining first substance and / or second substance can be removed particularly efficiently and reliably.

[0149] In one embodiment, the negative pressure device 333 can be integrated into the collecting device 334 and configured as a negative pressure pump, thereby achieving a compact structure and saving space.

[0150] See also Figure 4 and Figure 5 In this embodiment, the first pipeline 312, the second pipeline 322 and the third pipeline 332 are integrally arranged in the roof interior 11 along the entire circumferential direction of the sunroof 2. The first pipeline 312, the second pipeline 322 and the third pipeline 332 are arranged to overlap each other in the vertical direction, and the first pipeline 312 is located above the second pipeline 322, and the third pipeline 332 is located below the second pipeline 322. In other words, the first nozzle 311 is located above the second nozzle 321, and the second nozzle 321 is located above the suction port 331. As a result, the change in the light transmittance of the sunroof 2 and the removal of the reactants can be achieved particularly efficiently.

[0151] In one embodiment, the spraying directions of the first nozzle 311 and the second nozzle 321 and the opening direction of the suction port 331 can be set at a certain angle relative to the Y direction, especially inclined upward relative to the Y direction. This can further ensure the function of changing the light transmittance and removing the reactants of the device 3.

[0152] Furthermore, the device 3 further comprises a supply unit 34. The supply unit 34 is configured to supply the first substance to the first storage device 313 and / or supply the second substance to the second storage device 323.

[0153] The supply unit 34 includes a first filling opening 341 and a second filling opening 342. The first substance is supplied to the first storage device 313 via the first filling opening 341, and the second substance is supplied to the second storage device 323 via the second filling opening 342. A user can manually fill the first substance and the second substance through the first filling opening 341 and the second filling opening 342. In this way, the first substance and the second substance can be replenished, and the function of the device 3 is reliably ensured.

[0154] According to this embodiment, Figure 3Exemplarily, the supply unit 34 further includes a reduction device 343, a separation device 344 and a supply device 345. The reduction device 343 is fluidly connected to the collection device 334 of the suction unit 33 and is configured to receive the chemical reactants collected in the collection device 334 and reduce them to the first substance and the second substance. Here, the reduction device 343 can regenerate the first substance and the second substance by energizing the chemical reactants. The separation device 344 is configured to be suitable for separating the first substance from the second substance. The supply device 345 is configured to be suitable for supplying the separated first substance to the first storage device 313 and the separated second substance to the second storage device 323. Thus, the recycling of the first substance and the second substance can be achieved, thereby further reducing the operating cost of the device 3 and improving the convenience of the user.

[0155] exist Figure 3 In the figure, the solid arrows exemplarily represent the transport path and transport direction of the first substance and / or the second substance.

[0156] Figure 6 A schematic sectional view shows the arrangement of a further embodiment of a device 3 according to the invention for changing the light transmittance of a sunroof 2 of a vehicle 1 in a roof trim 11 .

[0157] and Figure 5 The embodiment in is different in that, Figure 6 In the embodiment, the first pipeline 312 and the second pipeline 322 are configured as a common pipeline. Due to the cross-sectional view, only the schematic diagram of the first nozzle 311 and the first pipeline 312 is shown.

[0158] According to one embodiment, the same number of first nozzles 311 and second nozzles 321 are arranged adjacent to each other and spaced the same distance apart over the entire inner circumference of the common pipeline.

[0159] Therefore, the third pipeline 332 is located below the common pipeline. In other words, the suction port 331 is located below the first nozzle 311 and the second nozzle 321 .

[0160] According to this embodiment, the first conveying device 314 and the second conveying device 324 can be configured as a common conveying device, such as a pump, and are respectively connected to the first pipeline 312 and the second pipeline 322 and the first storage device 313 and the second storage device 323 by, for example, correspondingly arranged valve devices. This further reduces the space requirement of the device 3 and reduces costs.

[0161] Fig. 9 A schematic diagram is shown of another exemplary embodiment of a sunroof assembly 4 according to the present invention.

[0162] like Fig. 9As shown, the sunroof assembly 4 includes a cover element 41 in addition to the sunroof 2 and the device 3 as described above. The cover element 41 is arranged on the roof interior 11, so that a closed cavity 42 is formed between the cover element 41 and the inner surface 21 of the sunroof 2. Therefore, the first substance, the second substance and their chemical reactants are particularly reliably prevented from entering the vehicle interior, thereby avoiding the impact of the device 3 on the user and further improving the user's satisfaction.

[0163] According to this embodiment, the cover element 41 has the same original light transmittance as the skylight 2 .

[0164] Fig.10 A schematic diagram of an exemplary embodiment of a system 200 for adjusting light transmittance of a sunroof 2 of a vehicle 1 according to the present invention is shown.

[0165] According to this embodiment, the system 200 may include a communication module 210, a device 3 according to the present invention or a sunroof assembly 4 according to the present invention, and a control module 220. The communication module 210 is configured to be suitable for receiving a request for adjusting the light transmittance of the sunroof 2. The control module 220 is data-connected with the communication module 210 and the device 3 and is configured to control the device 3 based on the request to adjust the light transmittance of the sunroof 2.

[0166] Here, the control module 220 may include an independent electronic control unit ECU or may include a sub-unit of a vehicle electronic control unit.

[0167] In addition, the system 200 may further include a sensor module 230 and a storage module 240. The sensor module 230 is data-connected to the control module 220 and includes an ambient light sensor and an illumination sensor. The ambient light sensor is configured to detect the brightness of the vehicle interior environment and transmit a brightness signal to the control module 220, and the illumination sensor is configured to detect the intensity of sunlight and transmit an illumination intensity signal to the control module 220. The storage module 240 is configured to store a curve of light transmittance change and the amount of the first substance and / or the amount of the second substance and to store a computer program product that at least assists in executing the function of adjusting the light transmittance of the sunroof 2 of the vehicle 1.

[0168] exist Fig.10 The data connection and direction are schematically shown by dashed arrows.

[0169] Below, according to Figures 11 to 13 And refer to Figures 1 to 10 Various embodiments of the method 100 for adjusting light transmittance of a sunroof 2 of a vehicle 1 of the present invention are described in detail.

[0170] Fig.111 is a flow chart showing an exemplary embodiment of a method 100 for adjusting the light transmittance of a sunroof 2 of a vehicle 1 according to the present invention. The method 100 exemplarily includes step S110 and step S120. The method 100 may be performed by means of Fig.10 The device 200 in is used to execute.

[0171] In step S110 , a request for adjusting the light transmittance of the sunroof 2 is received through the communication module 210 of the device 200 .

[0172] Here, the request includes reducing the light transmittance of the sunroof 2 or increasing the light transmittance of the sunroof 2 and can be input by the user of the vehicle 1 through input on the central control screen. For example, the user can input the request by clicking the light transmittance option on the central control screen or dragging the corresponding light transmittance adjustment bar (virtual function key) on the central control screen. Alternatively, the user can also input the request through voice input.

[0173] In step S120 , the control module 220 controls the device 3 to change the light transmittance of the sunroof 2 in response to the request.

[0174] For example, due to strong sunlight from outside, the user wants to adjust the light transmittance of the skylight 2, so the control module 220 controls the application unit 31 of the device 3 to spray a dark first substance onto the inner surface 21 of the skylight 2, and the first substance quickly and evenly adheres to the inner surface 21 to form a dark coating 5. Thus, the light transmittance of the skylight 2 is reliably reduced.

[0175] According to this embodiment, the light transmittance of the skylight 2 can be adjusted in a stepwise manner. That is, a corresponding adjustment level is set between the original light transmittance of the skylight 2 and the minimum light transmittance, and the light transmittance of the skylight 2 can be adjusted in stages according to the adjustment level.

[0176] Alternatively, the light transmittance of the sunroof 2 can be adjusted continuously. Therefore, the light transmittance of the sunroof 2 can be adjusted more accurately, and the user's satisfaction can be improved.

[0177] In this embodiment, in the case of improving the light transmittance, the control module 220 controls the suction unit 33 and the removal unit 32 of the device 3 to operate simultaneously. Thus, it is ensured that the chemical reactants of the first substance and the second substance are removed in time. Alternatively, the control module 220 can also operate the removal unit 32 of the device 3 with a predetermined delay time relative to the suction unit 33. That is, the removal unit 32 is operated after the suction unit 33 is operated, thereby preventing the second substance ejected from the suction unit 33 from being directly sucked away by the removal unit 32.

[0178] Fig.12 A flow chart showing another exemplary embodiment of a method 100 for adjusting the light transmittance of a sunroof 2 of a vehicle 1 according to the present invention is shown. Fig.11 The difference of the embodiment is that step S110 also includes sub-steps S111 to S113.

[0179] After receiving the request for adjusting the light transmittance of the sunroof 2 in step S110, the control module 220 of the system 200 does not immediately control the device 3 to change the light transmittance of the sunroof 2. Instead, in sub-step S111, the control module 220 receives a brightness signal about the brightness of the vehicle interior environment and / or a light signal of sunlight exposure from the sensor module 230 based on the request.

[0180] Next, in sub-step S112 , the control module 220 compares the brightness signal with a brightness threshold and / or compares the illumination signal with an illumination threshold.

[0181] Then, in sub-step S113, the request is modified based on the comparison result.

[0182] That is to say, for example, if the comparison result shows that the light intensity is large, the desired light transmittance of the sunroof 2 corresponding to the request is corrected, and if the desired light transmittance is too small, the desired light transmittance can be increased accordingly. In this way, the light transmittance of the sunroof 2 requested by the user can be adapted more intelligently and flexibly, thereby further improving the user's satisfaction and driving experience.

[0183] Fig.13 A flow chart showing a further exemplary embodiment of a method 100 for adjusting the light transmittance of a sunroof 2 of a vehicle 1 according to the present invention is shown. Fig.12 The difference of the embodiment is that step S110 also includes sub-steps S114 to S116.

[0184] In step S114, the control module 220 detects the first storage amount of the first substance and / or the second storage amount of the second substance of the device 3. This can be achieved by level sensors arranged in the first storage device 313 and the second storage device 323 of the device 3.

[0185] Next, in step S115, the control module 220 compares the amount of the first substance required based on the requested transmittance with the first storage amount and / or the amount of the second substance required with the second storage amount. To this end, the control module 220 retrieves the curve of the transmittance change and the amount of the first substance and / or the amount of the second substance stored in the storage module 240 and obtains the required amount of the first substance and / or the required amount of the second substance based on the difference between the requested transmittance and the current transmittance.

[0186] Then, in step S116, the control module 220 outputs a prompt for replenishing the first substance and / or the second substance based on the comparison result. If the comparison result shows that the storage amount of the first substance and the second substance is insufficient to meet the light transmittance requested by the user, the control module 220 outputs a prompt for replenishing the first substance and / or the second substance to the central control screen, and the user can learn of this through the central control screen and appropriately replenish the first substance and / or the second substance through the first filling opening 341 and / or the second filling opening 342. This improves the user's convenience and satisfaction, especially when the chemical reactants of the first substance and the second substance cannot be reduced.

[0187] The present invention also protects a computer program product for executing the steps of the method 100 according to the present invention.

[0188] Other advantages and alternative embodiments of the present invention are obvious to those skilled in the art. Therefore, the present invention in its broader sense is not limited to the specific details, representative structures and exemplary embodiments shown and described. On the contrary, those skilled in the art can make various modifications and substitutions without departing from the basic spirit and scope of the present invention.

Claims

1. A device (3) for changing the light transmittance of a sunroof (2) of a vehicle (1), the device (3) being arranged at an edge region of the sunroof (2), wherein: The device (3) comprises an application unit (31), which is configured to apply a first substance suitable for adhering to the inner surface (21) of the skylight (2) to form a coating (5), wherein the coating (5) has a light transmittance lower than the original light transmittance of the skylight (2).

2. The device (3) according to claim 1, wherein: The device (3) further comprises a cleaning unit (32) configured to apply a second substance to the covering layer (5), wherein the second substance is suitable for at least partially cleaning the first substance to improve the light transmittance of the skylight (2).

3. The device (3) according to claim 2, wherein: The application unit (31) comprises at least one first nozzle (311), a first pipeline (312), a first storage device (313) and a first conveying device (314); the first substance is supplied and stored in the first storage device (313); the first substance is conveyed to the first nozzle (311) via the first pipeline (312) by means of the first conveying device (314) and sprayed onto the inner surface (21) of the skylight (2) by means of the first nozzle (311); and / or The cleaning unit (32) comprises at least one second nozzle (321), a second pipeline (322), a second storage device (323) and a second conveying device (324); the second substance is supplied and stored in the second storage device (323); the second substance is conveyed to the second nozzle (321) via the second pipeline (322) by means of the second conveying device (324) and sprayed onto the inner surface (21) of the skylight (2) by means of the second nozzle (321).

4. The device (3) according to any one of claims 1 to 3, wherein: The first pipeline (312) and / or the second pipeline (322) are arranged in the roof interior decoration component (11) along the entire circumferential direction of the skylight (2); and / or The first pipeline (312) and the second pipeline (322) are stacked on each other in a vertical direction, or the first pipeline (312) and the second pipeline (322) are integrally constructed, or the first pipeline (312) and the second pipeline (322) are constructed as a common pipeline.

5. The device (3) according to any one of claims 1 to 4, wherein: The first conveying device (314) and the second conveying device (324) are integrally constructed, or The first conveying device (314) and the second conveying device (324) are configured as a common conveying device, or The first conveying device (314) is integrated into the first storage device (313) and / or the second conveying device (324) is integrated into the second storage device (323).

6. The device (3) according to any one of claims 1 to 5, wherein: A plurality of first nozzles (311) are arranged on the inner circumference of the first pipeline (312), and the plurality of first nozzles (311) are arranged spaced apart from each other along the entire inner circumference of the first pipeline (312), in particular, are arranged spaced apart from each other by the same distance; and / or A plurality of second nozzles (321) are arranged on the inner circumference of the second pipeline (322), and the plurality of second nozzles (321) are arranged spaced apart from each other along the entire inner circumference of the second pipeline (322), in particular, are arranged spaced apart from each other by the same distance.

7. The device (3) according to any one of claims 1 to 6, wherein: The second substance chemically reacts with the first substance to remove the coating (5) at least partially from the inner surface (21) of the skylight (2).

8. The device (3) according to any one of claims 1 to 7, wherein: The device (3) further comprises a suction unit (33) configured to suck and collect chemical reactants of the second substance and the first substance.

9. The device (3) according to any one of claims 1 to 8, wherein: The suction unit (33) comprises at least one suction port (331), a third pipeline (332), a negative pressure device (333) and a collecting device (334); the suction port (331) is arranged on the third pipeline (332) and is fluidically connected to the collecting device (334); the negative pressure device (333) is configured to generate a negative pressure in the third pipeline (332); with the aid of the generated negative pressure, the chemical reactant is sucked into the third pipeline (332) via the suction port (331) and collected in the collecting device (334).

10. The device (3) according to any one of claims 1 to 9, wherein: The third pipeline (332) is arranged in the roof interior decoration component (11) along the entire circumferential direction of the skylight (2); and / or The third pipeline (332) and the first pipeline (312) and / or the second pipeline (322) are stacked on each other in the vertical direction, or the third pipeline (332) and the first pipeline (312) and / or the second pipeline (322) are integrally constructed, or the third pipeline (332) and the first pipeline (312) and / or the second pipeline (322) are constructed as a common pipeline.

11. The device (3) according to any one of claims 1 to 10, wherein: A plurality of suction ports (331) are arranged on the third pipeline (332), and the plurality of suction ports (331) are arranged spaced apart from each other along the entire inner circumference of the second pipeline (322), in particular, are arranged spaced apart from each other by the same distance.

12. The device (3) according to any one of claims 1 to 11, wherein: The number of the suction ports (331) is greater than the number of the first nozzles (311) and / or the number of the second nozzles (321).

13. The device (3) according to any one of claims 1 to 12, wherein: The third pipeline (332) is arranged below the first pipeline (312) and the second pipeline (322) in the vertical direction.

14. The device (3) according to any one of claims 1 to 13, wherein: The first substance and / or the second substance is a fluid; and / or The first substance has a dark color.

15. The device (3) according to any one of claims 1 to 14, wherein: The first substance is a ferric tannate solution and the second substance is a citric acid solution; or The first substance is a solution of ferrosoferric oxide nanoparticles and the second substance is a solution of ascorbic acid.

16. The device (3) according to any one of claims 1 to 15, wherein: The device (3) further comprises a supply unit (34), which is configured to supply the first substance to the first storage device (313) and / or to supply the second substance to the second storage device (323).

17. The device (3) according to claim 16, wherein The supply unit (34) comprises a first filling opening (341) and a second filling opening (342), the first substance is supplied to the first storage device (313) via the first filling opening (341), and the second substance is supplied to the second storage device (323) via the second filling opening (342); and / or The supply unit (34) includes a reduction device (343), a separation device (344) and a supply device (345), wherein the reduction device (343) is fluidly connected to the collection device (334) of the suction unit (33) and is configured to receive the chemical reactants collected in the collection device (334) and reduce them into the first substance and the second substance, the separation device (344) is configured to separate the first substance from the second substance, and the supply device (345) is configured to supply the separated first substance to the first storage device (313) and / or supply the separated second substance to the second storage device (323).

18. A sunroof assembly (4) for a vehicle (1), comprising a sunroof (2) and a device (3) according to any one of claims 1 to 17.

19. The sunroof assembly (4) according to claim 18, wherein: The sunroof assembly (4) further comprises a cover element (41), which is arranged on the roof interior decoration (11) so that a closed cavity (42) is formed between the cover element (41) and the inner surface (21) of the sunroof (2), wherein the cover element (41) has the same original light transmittance as the sunroof (2).

20. A method (100) for adjusting light transmittance of a sunroof (2) of a vehicle (1), wherein: The method (100) comprises the following steps: Step S110: receiving a request for adjusting the light transmittance of the skylight (2); and Step S120: In response to the request, controlling the device (3) according to any one of claims 1 to 17 to change the light transmittance of the skylight (2).

21. The method (100) of claim 20, wherein: Step S110 also includes the following sub-steps: Sub-step S111: receiving a brightness signal about the brightness of the vehicle interior environment and / or a light signal of sunlight exposure based on the request; Sub-step S112: comparing the brightness signal with a brightness threshold and / or comparing the illumination signal with the illumination threshold; and Sub-step S113: Modify the request based on the comparison result.

22. The method (100) according to claim 20 or 21, step S110 further comprising the following sub-steps: Step S114: detecting a first storage amount of the first substance and / or a second storage amount of the second substance in the device (3); Step S115: comparing the amount of the first substance required based on the requested light transmittance with the first storage amount and / or comparing the amount of the second substance required with the second storage amount; and Step S116: outputting a prompt for replenishing the first substance and / or the second substance based on the comparison result.

23. The method (100) according to any one of claims 20 to 22, wherein: The suction unit (33) and the removal unit (32) of the device (3) are operated simultaneously, or The removal unit (32) of the device (3) is operated with a predetermined delay time relative to the suction unit (33).

24. The method (100) according to claim 22 or 23, wherein: The required amount of the first substance and / or the required amount of the second substance is obtained based on the difference between the requested transmittance and the current transmittance, wherein a curve of transmittance change and the amount of the first substance and / or the amount of the second substance is retrieved in step S115.

25. The method (100) according to any one of claims 20 to 24, wherein: The request includes reducing the light transmittance of the skylight (2) or increasing the light transmittance of the skylight (2); and / or The request is input by means of a user interface, such as a central control screen, for example, by voice input or by touch input.

26. The method (100) according to any one of claims 20 to 25, wherein: The light transmittance of the skylight (2) can be adjusted in steps; and / or The light transmittance of the skylight (2) can be continuously adjusted.

27. A system (200) for adjusting light transmittance of a sunroof (2) of a vehicle (1), the system (200) being configured to be suitable for performing the method (100) according to any one of claims 20 to 26, wherein: The system (200) comprises: A communication module (210), the communication module (210) being configured to receive a request for adjusting the light transmittance of the skylight (2); An apparatus (3) according to any one of claims 1 to 17 or a sunroof assembly (4) according to claim 18 or 19; and A control module (220) is configured to control the device (3) based on the request to adjust the light transmittance of the skylight (2).

28. The system (200) of claim 27, wherein: The system (200) further comprises: a sensor module (230), the sensor module (230) being data-connected to the control module (220) and comprising an ambient light sensor and / or a light sensor, the ambient light sensor being configured to detect the brightness of the vehicle interior environment, and the light sensor being configured to detect the intensity of sunlight exposure; and / or A storage module (240) is configured to store a curve of light transmittance change and the dosage of the first substance and / or the dosage of the second substance and to store a computer program product for at least assisting in implementing the steps of the method (100) according to the present invention.

29. A vehicle (1) comprising a device (3) according to any one of claims 1 to 17 or a sunroof assembly (4) according to claim 18 or 19 or a system (200) according to claim 27 or 28.

30. A computer program product, such as a computer-readable program carrier, comprising or storing computer program instructions, which, when executed by a processor, at least assist in implementing the steps of the method (100) according to any one of claims 20 to 26.

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