Method for setting a ceramic strip under a front windshield

Abstract

The present application belongs to the technical field of automobile general layout, and particularly relates to a method for setting a ceramic strip below a front windshield, comprising the following steps: determining a top boundary A2 point of a flower point area of the front windshield; determining an inflection point A3 point matched with the front windshield glass of an instrument panel; determining a bottom boundary A4 point of the flower point area of the front windshield; the flower point area is between the A2 point and the A4 point, and a black area of the front windshield is below the A4 point; the flower point area and the black area of the front windshield form a ceramic strip below the front windshield. When a user is driving or riding in the vehicle, the user can see the flower point area with a decorative effect, but cannot see the rain wiper and the internal structure of the engine hood, and cannot see the black area, so that the user's visual experience is improved, and the user's satisfaction is improved.

Description

Technical Field

[0001] This invention belongs to the field of automotive overall layout technology, specifically relating to a method for setting a ceramic strip below the windshield. Background Technology

[0002] Patent document 1 (CN109323678A) discloses a verification device and verification method applied in the field of glass verification technology. The verification method includes: importing graphic data recognizable by a 3D CAS environment into a 3D CAD environment to form a 3D model of the glass in the 3D CAD environment; selecting multiple measurement points on the first surface of the 3D model of the glass; creating a first light path diagram and a second light path diagram according to the principle of light propagation; measuring the angle between the propagation paths of the incident light rays passing through each measurement point and the portion of the light rays refracted from the second surface to the outside of the glass in the first and second light path diagrams, wherein the angle is called the secondary image offset of the glass at the corresponding measurement point. This invention has low relevance to the patent.

[0003] Patent document 2 (CN211869119U) discloses a dimming windshield and a car. The dimming windshield includes: a dimming unit located on the windshield of the vehicle, capable of adjusting the refractive index of the windshield; a control unit; and a detection unit for detecting ambient light intensity information and sending the ambient light intensity information to the control unit. The control unit controls the transmittance of the dimming unit based on the ambient light intensity information. This invention controls the transmittance of the dimming unit by the control unit, making the transparency of the dimming unit brighter, thereby ensuring the overall visibility of the windshield. Furthermore, by controlling the transmittance of the dimming unit by the control unit, the transparency of the dimming unit is darkened, thereby preventing the front passengers from being exposed to the sun in strong sunlight. This invention adopts a design without a sunshade or sun visor strip, and achieves the purpose of sun shading by changing the color of the upper area of ​​the windshield. It is costly, complex to implement, and not universally applicable to ordinary cars. It has low relevance to this invention patent.

[0004] Patent document 3 (CN112498058A) discloses a windshield and a car, wherein the windshield includes a windshield body and a viewing glass through which the camera's field of view passes; the windshield body has an installation opening; the viewing glass is assembled into the installation opening, and its outer wall surface is adapted to the outer wall surface of the windshield body, so that the assembled windshield body forms a complete and continuous outer wall surface, and the outer wall surface of the viewing glass itself is coated. This structural design separates the glass area corresponding to the camera on a traditional windshield, facilitating subsequent coating processes, thereby giving this glass area good waterproof and anti-fog performance, improving light transmittance, and reducing reflection and stray light problems, thus better ensuring that the camera can accurately collect information. The purpose of this invention is to separate the glass in the camera mounting area and perform special treatment separately to achieve better optical performance, which is of little relevance to this patent. Summary of the Invention

[0005] The problem this invention aims to solve:

[0006] With societal development, users have placed higher demands on automotive visual perception. The ceramic strip below the windshield, a high-attention area for users, can suffer from problems if improperly designed, such as reduced downward visibility, exposed windshield wipers, and visible internal engine hood structures. All of these negatively impact the user's visual experience and inevitably lead to complaints. The technical problem this invention aims to solve is to overcome the aforementioned problems in existing technologies by providing a method for setting the ceramic strip below the windshield.

[0007] The purpose of this invention:

[0008] A method for designing a ceramic strip at the bottom of the windshield has been developed that ensures that when the user is driving or riding in the vehicle, the windshield wipers and the internal structure of the engine hood are not visible through the windshield, and no dark areas are visible; only a decorative dotted area is visible. This enhances the user's visual experience and increases user satisfaction.

[0009] It should be noted that, in this document, relational terms such as "first" and "second" are used only to distinguish one entity or operation from another, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Furthermore, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such process, method, article, or apparatus.

[0010] To solve the above-mentioned technical problems, the present invention is implemented using the following technical solution:

[0011] A method for setting a ceramic strip below the windshield includes: determining point A2, the upper boundary of the dotted area of ​​the windshield; determining point A3, the inflection point where the dashboard matches the windshield glass; determining point A4, the lower boundary of the dotted area of ​​the windshield; the area between points A2 and A4 is the dotted area, and the area below point A4 is the black area of ​​the windshield, the dotted area and the black area of ​​the windshield together form the ceramic strip below the windshield.

[0012] Further, before determining the upper boundary A2 point of the front windshield dotted area, obtain the coordinates of the human body R point, V1 point, engine hood profile, and front windshield glass surface to determine the glass-ceramic printing strip.

[0013] Furthermore, after obtaining the coordinates of point R on the human body, construct the ZX plane through point R, denoted as P1, and obtain the intersection line with the glass surface on the P1 plane, denoted as S1.

[0014] Furthermore, curve S1 is offset downward along plane P1 to obtain the glass-ceramic printing strip, denoted as S2.

[0015] Preferably, the curve S1 is offset downwards by 2mm along the plane P1 to obtain the glass-ceramic printing tape.

[0016] Further, the determination of the upper boundary A2 point of the front windshield dotted area is specifically as follows: obtain the intersection line with the engine hood profile on the P1 plane, denoted as S3; take the highest Z-direction point of S3 on the P1 plane, which is the highest Z-direction point of the rear edge of the engine hood, denoted as point A1; draw a straight line through point V1 and point A1, denoted as L1; the intersection point of L1 and the ceramic strip printing surface S2 is denoted as point A2, which is defined as the upper boundary of the dotted area.

[0017] Furthermore, the determination of the inflection point A3 where the dashboard matches the windshield is specifically as follows: the straight line L1 is offset downward along plane P1 to obtain the straight line L2, the glass-printed ceramic strip printing surface S2 is offset downward along plane P1 to obtain the curve S4, and the intersection of the straight line L2 and the curve S4 is defined as the inflection point of the dashboard, denoted as point A3.

[0018] Furthermore, the determination of the lower boundary A4 point of the front windshield dotted area is specifically as follows: draw a straight line through point V1 and point A3, denoted as L3, and the intersection of the straight line L3 and the printing surface S2 of the glass-printed ceramic strip is denoted as point A4, which is defined as the lower boundary of the front windshield dotted area.

[0019] Preferably, line L1 is offset downwards along plane P1 by 6-10mm to obtain line L2.

[0020] Preferably, the printing surface S2 of the glass-printed ceramic tape is offset downwards by 7mm along the plane P1 to obtain curve S4.

[0021] Compared with the prior art, the beneficial effects of the present invention are:

[0022] 1. The internal structure of the engine hood is not visible from inside the vehicle.

[0023] 2. The dashboard inflection point is set reasonably to maximize the user's downward field of vision.

[0024] 3. Users can only see the decorative floral area inside the car, and cannot see the black area.

[0025] 4. Pay close attention to user experience and improve user satisfaction with the in-car experience.

[0026] 5. This method is applicable to all passenger vehicles.

[0027] 6. This method is widely applicable to 3D CAD software. Attached Figure Description

[0028] The invention will now be further described with reference to the accompanying drawings:

[0029] Figure 1 To obtain a schematic diagram of the intersection line with the glass surface on the P1 plane;

[0030] Figure 2 To obtain a schematic diagram of the glass-ceramic printing tape;

[0031] Figure 3 A schematic diagram to determine the upper boundary of the front windshield dotted area;

[0032] Figure 4 A schematic diagram to determine the inflection point for matching the dashboard with the windshield;

[0033] Figure 5 A schematic diagram to determine the lower boundary of the front windshield dotted area;

[0034] Figure 6 A schematic diagram showing the ceramic strip area below the windshield, composed of the dotted area and the black area;

[0035] Figure 7 This is a flowchart of a method for setting a ceramic strip below the windshield according to the present invention. Detailed Implementation

[0036] To make the objectives, technical solutions, and advantages of this invention clearer, the technical solutions of the embodiments of this invention will be described in more detail below with reference to the accompanying drawings. In the drawings, the same or similar reference numerals denote the same or similar elements or elements having the same or similar functions throughout. The described embodiments are some, but not all, embodiments of this invention. The embodiments described below with reference to the accompanying drawings are exemplary and intended to explain this invention, and should not be construed as limiting the invention. All other embodiments obtained by those skilled in the art based on the embodiments of this invention without creative effort are within the scope of protection of this invention. The embodiments of this invention will be described in detail below with reference to the accompanying drawings.

[0037] In the description of this invention, it should be understood that the terms "center", "longitudinal", "lateral", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limiting the scope of protection of this invention.

[0038] The present invention will now be described in detail with reference to the accompanying drawings:

[0039] 1. The specific design method steps described in this invention are as follows:

[0040] 1.1 Input conditions: Driver's R point, V1 point, engine hood profile, glass surface;

[0041] 1.2 Determine the glass-ceramic strip;

[0042] 1.2.1 Draw a ZX plane through point R, denoted as P1. Obtain the intersection line with the glass surface on the P1 plane, denoted as S1 (see...). Figure 1 );

[0043] 1.2.2 The glass-ceramic printing strip is obtained by shifting curve S1 downwards by 2mm along plane P1, denoted as S2 (see [reference]). Figure 2 );

[0044] 1.3 Determine the upper boundary of the front windshield dotted area (see...) Figure 3 );

[0045] 1.3.1 Obtain the intersection line with the engine hood profile on the P1 plane, denoted as S3;

[0046] 1.3.2 On plane P1, take the highest point of S3 in the Z direction, which is the highest point of the rear edge of the engine hood in the Z direction, and denote it as point A1;

[0047] 1.3.3 Draw a straight line through points V1 and A1, denoted as L1. The intersection of L1 and ceramic strip S2 is denoted as point A2, which is defined as the upper boundary of the dotted area.

[0048] 1.4 Determine the inflection point where the dashboard aligns with the windshield (see...) Figure 4 );

[0049] 1.4.1 Straight line L1 is offset downwards by 6-10mm along plane P1 to obtain straight line L2, and glass ceramic printing tape S2 is offset downwards by 7mm along plane P1 to obtain curve S4;

[0050] 1.4.2 The intersection of straight line L2 and curve S4 is defined as the inflection point of the instrument panel, denoted as point A3;

[0051] 1.5 Determine the lower boundary of the front windshield dotted area (see...) Figure 5 );

[0052] 1.5.1 Draw a straight line through point V1 and point A3, denoted as L3;

[0053] 1.5.2 The intersection of straight line L3 and glass-ceramic printing strip S2 is denoted as point A4, which is defined as the lower boundary of the dotted area of ​​the windshield;

[0054] 1.6 The area between points A2 and A4 is the dotted area; below point A4 is the black area of ​​the windshield. The dotted area and the black area together form the ceramic strip area below the windshield (see...). Figure 6 );

[0055] 2. To make the design method of this invention clearer, the invention will be further described below with reference to flowcharts, such as... Figure 7 The flowchart shown

[0056] This invention is a design method for a ceramic strip under the windshield based on the V1 point of the human body. Its features are that, based on this method, the internal structure of the engine hood is not visible, the inflection point of the dashboard does not affect the downward vision, and the user can only see the decorative dotted area inside the vehicle.

[0057] This invention improves the user's visual perception experience without increasing cost or weight.

[0058] Determine the upper boundary of the dotted area of ​​the front windshield: Obtain the intersection line with the engine hood profile on the P1 plane, and denote it as S3. Take the highest Z-direction point of S3 on the P1 plane, which is the highest Z-direction point of the rear edge of the engine hood, and denote it as point A1. Draw a straight line through point V1 and point A1, and denote it as L1. The intersection point of L1 and the ceramic strip printing surface S2 is denoteed as point A2, which is defined as the upper boundary of the dotted area.

[0059] Determine the inflection point where the dashboard matches the windshield: Line L1 is offset downwards by 6-10mm along plane P1 to obtain line L2, and the printed surface S2 of the glass-printed ceramic strip is offset downwards by 7mm along plane P1 to obtain curve S4. The intersection of line L2 and curve S4 is defined as the inflection point of the dashboard, denoted as point A3.

[0060] Determine the lower boundary of the dotted area of ​​the front windshield: Draw a straight line through point V1 and point A3, denoted as L3. The intersection of the straight line L3 and the printed surface S2 of the glass-printed ceramic strip is denoted as point A4. This point is defined as the lower boundary of the dotted area of ​​the front windshield.

[0061] The area between points A2 and A4 is the dotted area, and the area below point A4 is the black area of ​​the windshield. Together, they form the ceramic strip below the windshield.

[0062] The verification method used in this invention is to simulate a user's forward-looking observation scenario from inside a vehicle.

[0063] The above description is merely a specific embodiment of the present invention, but the scope of protection of the present invention is not limited thereto. Any modifications, equivalent substitutions, and improvements made by those skilled in the art within the scope of the technology disclosed in the present invention, and within the spirit and principles of the present invention, should be included within the scope of protection of the present invention. Furthermore, all content not described in detail in this specification is prior art known to those skilled in the art.

Claims

1. A method for setting a ceramic strip below a windshield, characterized in that, include: Determine point A2, the upper boundary of the windshield dotted area; Determine the inflection point A3 where the dashboard aligns with the windshield; Determine point A4 as the lower boundary of the front windshield dotted area; The area between points A2 and A4 is the dotted area, and the area below point A4 is the black area of ​​the windshield. The dotted area and the black area of ​​the windshield together form the ceramic strip below the windshield. Before determining the upper boundary A2 point of the front windshield dotted area, obtain the coordinates of the human body R point, V1 point, engine hood surface, and front windshield glass surface to determine the glass-ceramic printing strip. After obtaining the coordinates of point R on the human body, construct the ZX plane through point R, denoted as P1. Obtain the intersection line with the glass surface on the P1 plane, denoted as S1. Curve S1 is offset downward along plane P1 to obtain the glass-ceramic printing strip, denoted as S2; The specific steps for determining the upper boundary A2 point of the front windshield dotted area are as follows: obtain the intersection line with the engine hood surface on the P1 plane, denoted as S3; take the highest Z-direction point of S3 on the P1 plane, which is the highest Z-direction point of the rear edge of the engine hood, denoted as point A1; draw a straight line through point V1 and point A1, denoted as L1; the intersection point of L1 and the ceramic strip printing surface S2 is denoted as point A2, which is defined as the upper boundary of the dotted area; The specific content of determining the inflection point A3 of the instrument panel matching the windshield is as follows: the straight line L1 is offset downward along the plane P1 to obtain the straight line L2, the glass printed ceramic strip printing surface S2 is offset downward along the plane P1 to obtain the curve S4, and the intersection of the straight line L2 and the curve S4 is defined as the inflection point of the instrument panel, denoted as point A3. The determination of the lower boundary A4 point of the front windshield dotted area is as follows: draw a straight line through point V1 and point A3, denoted as L3, and the intersection of the straight line L3 and the printed surface S2 of the glass-printed ceramic strip is denoted as point A4, which is defined as the lower boundary of the front windshield dotted area.

2. The method for setting a ceramic strip below the windshield according to claim 1, characterized in that: Curve S1 is offset downwards by 2mm along plane P1 to obtain the glass-ceramic printing tape.

3. A method for setting a ceramic strip below the windshield according to claim 1 or 2, characterized in that: Line L1 is offset downwards by 6-10mm along plane P1 to obtain line L2.

4. A method for setting a ceramic strip below a front windshield according to claim 1 or 2, characterized in that: The printing surface S2 of the glass-printed ceramic tape is offset downwards by 7mm along plane P1 to obtain curve S4.

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