Methods for selecting the position of the sun visor hinge axis and automobile

Abstract

This invention discloses a method for selecting the arrangement position of a sun visor hinge axis and an automobile, relating to the field of automotive technology. The method for selecting the arrangement position of the sun visor hinge axis includes: acquiring human-machine head arrangement data based on human-machine field of vision requirements, wherein the human-machine head arrangement data includes the upper eye point, the lower eye point, and the head envelope surface; establishing an upper eye line of sight extending along a second direction based on the upper eye point, establishing a lower eye line of sight extending along the second direction based on the lower eye point, and establishing a boundary curve extending upwards in a third direction based on the head envelope surface; obtaining the intersection area of ​​the upper eye line of sight, the lower eye line of sight, and the boundary curve, the intersection area being the first arrangement area of ​​the sun visor hinge axis. This setup allows for rapid verification of the feasible area for the arrangement of the sun visor hinge axis, avoiding repeated trials and adjustments, improving efficiency, and shortening the cycle time.

Description

Technical Field

[0001] This invention relates to the field of automotive technology, and in particular to a method for selecting the arrangement position of the sun visor hinge axis and an automobile thereof. Background Technology

[0002] In the current design and development process of vehicle sun visors, the hinge axis arrangement of the sun visor can often only be initially arranged according to experience. During the arrangement process, the design scheme is often modified repeatedly, the arrangement position is adjusted, and the arrangement result is checked, resulting in low design efficiency. Summary of the Invention

[0003] The main objective of this invention is to propose a method for selecting the arrangement position of the hinge axis of the sun visor and an automobile thereof, aiming to solve the problem of low design efficiency caused by the need for repeated adjustments to verify the arrangement results during the existing sun visor arrangement process.

[0004] To achieve the above objectives, the present invention proposes a method for selecting the arrangement position of the sun visor hinge axis, wherein the sun visor hinge axis extends along a first direction, and the sun visor is rotatably arranged along the sun visor hinge axis. The method for selecting the arrangement position of the sun visor hinge axis includes:

[0005] According to the human-machine field of vision requirements, human-machine head arrangement data is obtained, wherein the human-machine head arrangement data includes the human-machine upper eye point, the human-machine lower eye point, and the head envelope surface;

[0006] Based on the human-machine upper eye point, a human-machine upper eye line of sight extending along the second direction is established; based on the human-machine lower eye point, a human-machine lower eye line of sight extending along the second direction is established; and based on the head envelope surface, a boundary curve extending upward on a third side is established.

[0007] Obtain the intersection area of ​​the upper eye line of the human-machine interface, the lower eye line of the human-machine interface, and the boundary curve. The intersection area is the first arrangement area of ​​the hinge axis of the sun visor.

[0008] In one embodiment, the steps of establishing an upper eye line of sight extending along a second direction based on the upper eye point of the human-machine interface, establishing a lower eye line of sight extending along the second direction based on the lower eye point of the human-machine interface, and establishing a boundary curve extending upward from a third direction based on the head envelope surface include:

[0009] A first horizontal reference line extending along the second direction is determined based on the human-machine interface eye point;

[0010] Obtain the human-machine field of view from a third-party perspective;

[0011] The human-machine upper eye line is established with the first horizontal baseline as the reference and the human-machine upper field of vision angle as the included angle.

[0012] In one embodiment, the steps of establishing an upper eye line of sight extending along a second direction based on the upper eye point of the human-machine interface, establishing a lower eye line of sight extending along the second direction based on the lower eye point of the human-machine interface, and establishing a boundary curve extending upward from a third direction based on the head envelope surface include:

[0013] A second horizontal reference line extending along the second direction is determined based on the lower eye point of the human-machine interface;

[0014] Obtain the human-machine field of view angle from a third-party perspective;

[0015] Using the second horizontal baseline as a reference and the angle between the human-machine lower field of view and the intermediate line of view, an intermediate line of sight is established, wherein the sun visor has a lowest point in the third direction during its rotation stroke, and the lowest point is located between the second horizontal baseline and the intermediate line of sight;

[0016] The human-machine lower eye line of sight is established based on the intermediate line of sight.

[0017] In one embodiment, the step of establishing the human-machine lower eye line of sight based on the intermediate line of sight includes:

[0018] Obtain the distance between the lowest point and the axis of the sunshade hinge in the third direction;

[0019] The intermediate line of sight is translated along a third direction according to the distance to establish the human-machine lower eye line of sight.

[0020] In one embodiment, the lower eye angle of the human-machine interface is A, where A ≤ 10°.

[0021] In one embodiment, the steps of establishing an upper eye line of sight extending along a second direction based on the upper eye point of the human-machine interface, establishing a lower eye line of sight extending along the second direction based on the lower eye point of the human-machine interface, and establishing a boundary curve extending upward from a third direction based on the head envelope surface include:

[0022] Obtain the minimum offset distance of the head envelope surface;

[0023] The head envelope is expanded according to the minimum offset distance to obtain the boundary surface;

[0024] The boundary curve is established based on the boundary surface.

[0025] In one embodiment, the step of establishing the boundary curve based on the boundary surface includes:

[0026] Obtain the contour line of the boundary surface in the first direction to obtain the boundary curve.

[0027] In one embodiment, the minimum offset distance is B, where B ≥ 240 mm.

[0028] In one embodiment, after the step of obtaining the intersection area of ​​the human-machine upper eye line of sight, the human-machine lower eye line of sight, and the boundary curve, wherein the intersection area is the first arrangement area of ​​the sun visor hinge axis, the method further includes:

[0029] Obtain the initial shape of the ceiling;

[0030] Based on the preliminary design surface, the outline of the ceiling in the first direction is obtained to obtain the ceiling boundary line;

[0031] The intersection area of ​​the ceiling boundary line, the upper eye line of the human-machine interface, the lower eye line of the human-machine interface, and the boundary curve is obtained to obtain the second arrangement area.

[0032] The present invention also proposes an automobile, the automobile including a sun visor, the sun visor having a sun visor hinge, the arrangement position of the axis of the sun visor hinge being based on the above-described method for selecting the arrangement position of the axis of the sun visor hinge.

[0033] In the technical solution of this invention, firstly, based on the human-machine field of vision requirements, the upper eye point, the lower eye point, and the head envelope are obtained. Then, an upper eye line of sight extending along a second direction is established based on the upper eye point, and a lower eye line of sight extending along the second direction is established based on the lower eye point. A boundary curve extending upwards in a third direction is established based on the head envelope. The upper eye line of sight, the lower eye line of sight, and the boundary curve intersect each other to form the intersection area, which is the first arrangement area of ​​the sun visor hinge axis. This arrangement allows for rapid verification of the feasible area for arranging the sun visor hinge axis, avoiding repeated attempts and adjustments, improving efficiency, and shortening the cycle time. Attached Figure Description

[0034] To more clearly illustrate the technical solutions in the embodiments of the present invention or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present invention. For those skilled in the art, other drawings can be obtained based on the structures shown in these drawings without creative effort.

[0035] Figure 1 A flowchart illustrating an embodiment of the method for selecting the arrangement position of the hinge axis of the sunshade provided by the present invention;

[0036] Figure 2A flowchart illustrating another embodiment of the method for selecting the arrangement position of the hinge axis of the sunshade provided by the present invention;

[0037] Figure 3 A flowchart illustrating another embodiment of the method for selecting the arrangement position of the hinge axis of the sunshade provided by the present invention;

[0038] Figure 4 This is a structural schematic diagram of an embodiment of a car provided by the present invention.

[0039] Explanation of icon numbers:

[0040] 100. Automobile; 1. Upper eye point of human-machine interface; 2. Lower eye point of human-machine interface; 3. Head envelope; 4. Upper eye line of human-machine interface; 5. Lower eye line of human-machine interface; 6. Boundary curve; 7. Intermediate line of sight; 8. Sun visor; 9. Sun visor hinge axis; 10. Roof boundary line.

[0041] The realization of the objective, functional features and advantages of the present invention will be further explained in conjunction with the embodiments and with reference to the accompanying drawings. Detailed Implementation

[0042] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the scope of protection of the present invention.

[0043] It should be noted that if the embodiments of the present invention involve directional indications (such as up, down, left, right, front, back, etc.), the directional indications are only used to explain the relative positional relationship and movement of the components in a specific posture. If the specific posture changes, the directional indications will also change accordingly.

[0044] Furthermore, if the embodiments of this invention involve descriptions such as "first" or "second," these descriptions are for descriptive purposes only and should not be construed as indicating or implying their relative importance or implicitly specifying the number of technical features indicated. Thus, a feature defined with "first" or "second" may explicitly or implicitly include at least one of those features. Additionally, the use of "and / or" or "and / or" throughout the text includes three parallel solutions. For example, "A and / or B" includes solution A, solution B, or a solution where both A and B are satisfied simultaneously. Furthermore, the technical solutions of the various embodiments can be combined with each other, but this must be based on the ability of those skilled in the art to implement them. When the combination of technical solutions is contradictory or impossible to implement, it should be considered that such a combination of technical solutions does not exist and is not within the scope of protection claimed by this invention.

[0045] This invention proposes a method for selecting the position of the hinge axis of a sun visor. It aims to solve the problem of low design efficiency caused by the need for repeated adjustments to verify the arrangement results during the existing vehicle sun visor layout process.

[0046] Please see Figure 1 In one embodiment of the present invention, the hinge axis 9 of the sun visor extends along a first direction, and the sun visor 8 is rotatably disposed along the hinge axis 9. The method for selecting the arrangement position of the hinge axis includes:

[0047] S100. According to the human-machine field of vision requirements, obtain human-machine head arrangement data, wherein the human-machine head arrangement data includes human-machine upper eye point 1, human-machine lower eye point 2 and head envelope surface 3.

[0048] It is understandable that the human-machine field of vision requirement refers to the spatial field of vision required of the driver when the driver is sitting in the car seat.

[0049] It should be noted that when the driver is sitting in the car seat 100, since the car seat 100 can move at least partially in the second direction and the third direction upward, the driver's eyes will also move synchronously during the movement of the car seat in the second direction and the third direction. Specifically, in this embodiment, the driver moves along with the car seat 100, and during the movement, there is a human-machine upper eye point 1 that makes the driver's eyes the highest in the third direction upward; and a human-machine lower eye point 2 that makes the driver's eyes the lowest in the third direction upward.

[0050] It should also be further explained that when the driver is seated on the vehicle 100 seat, the driver's head position will also move along with the movement of the vehicle 100 seat. Therefore, during the movement of the driver's head, the surface where the outline of the head converges is the head envelope surface 3.

[0051] S200. Based on the human-machine upper eye point 1, establish a human-machine upper eye line of sight 4 extending along the second direction; based on the human-machine lower eye point 2, establish a human-machine lower eye line of sight 5 extending along the second direction; and based on the head envelope surface 3, establish a boundary curve 6 extending upward on a third side.

[0052] It is understandable that the upper eye line of the human-machine interface is established based on the upper eye point 1 to ensure that when the driver's eyes are at the upper eye point 1, the sun visor 8 can accurately block the sunlight shining on the driver's eyes; similarly, the lower eye line of the human-machine interface is established based on the lower eye point 2 to ensure that when the driver's glasses are at the lower eye point 2, the sun visor 8 can accurately block the sunlight shining on the driver's eyes.

[0053] In addition, the boundary curve 6 is set to ensure that the sun visor 8 will not cause pressure on the driver when the driver is using the sun visor 8, thereby ensuring the driver's normal user experience.

[0054] It should also be noted that in this embodiment, the boundary curve 6 extends in the second direction and is set to extend upward in the third direction.

[0055] S300, Obtain the intersection area of ​​the human-machine upper eye line of sight 4, the human-machine lower eye line of sight 5 and the boundary curve 6, and the intersection area is the first arrangement area of ​​the sunshade hinge axis 9.

[0056] In this embodiment, the upper eye line of sight 4, the lower eye line of sight 5, and the boundary curve 6 are arranged in pairs to intersect, that is, the first arrangement area is arranged in such a way that they can jointly enclose the intersection area. The sunshade hinge axis 9 can be arranged within the first arrangement area.

[0057] It should be noted that the sunshade hinge axis 9 extends along the first direction. Therefore, the sunshade hinge axis 9 can be initially arranged at any position within the first arrangement area, and the present invention does not limit this.

[0058] In the technical solution of this invention, firstly, based on the human-machine field of vision requirements, the upper eye point 1, the lower eye point 2, and the head envelope surface 3 are obtained. Then, based on the upper eye point 1, an upper eye line 4 extending along a second direction is established; based on the lower eye point 2, a lower eye line 5 extending along a second direction is established; and based on the head envelope surface 3, a boundary curve 6 extending upwards in a third direction is established. The upper eye line 4, the lower eye line 5, and the boundary curve 6 intersect each other to form the intersection area, which is the first arrangement area of ​​the sun visor hinge axis 9. This arrangement allows for rapid verification of the feasible area for arranging the sun visor hinge axis, avoiding repeated attempts and adjustments to the sun visor hinge axis 9, improving efficiency, and shortening the cycle time.

[0059] Of course, it is understood that the present invention does not limit the order of establishing the human-machine upper eye line of sight 4, establishing the human-machine lower eye line of sight 5, and establishing the boundary curve 6. In actual settings, it can be adjusted according to the requirements.

[0060] It should be noted that in this invention, the first direction is the Y-axis direction of the vehicle body 100, the second direction is the X-axis direction of the vehicle body 100, and the third direction is the Z-axis direction of the vehicle body 100.

[0061] In another embodiment of the present invention, step S200, which involves establishing an upper eye line 4 extending along a second direction based on the upper eye point 1, establishing a lower eye line 5 extending along a second direction based on the lower eye point 2, and establishing a boundary curve 6 extending upwards on a third side based on the head envelope surface 3, includes at least:

[0062] S210. Determine a first horizontal reference line extending along the second direction based on the human-machine interface eye point 1;

[0063] It is understood that the first horizontal reference line is set through the human-machine upper eye point 1, and the setting of the first horizontal reference line provides a reference for the establishment of the human-machine upper eye line.

[0064] S220, Obtain the human-machine field of view angle in a third-party direction;

[0065] It should be noted that the present invention does not limit the specific value of the human-machine upper field of view angle. The human-machine upper field of view angle is the angle requirement of the human-machine upper field of view line of the vehicle 100. For different vehicle models, the human-machine upper field of view angle is also different. Therefore, in actual setting, it can be selected according to the specific vehicle model. The present invention does not limit it.

[0066] S230. Using the first horizontal baseline as a reference and the human-machine upper eye line 4 as the included angle, establish the human-machine upper eye line 4.

[0067] It is understood that in this embodiment, both the first horizontal reference line and the human-machine upper eye line 4 are set through the human-machine upper eye point 1. And because the human-machine upper field of vision angle is only set in the third direction, the first horizontal reference line and the human-machine upper eye line 4 are on the same plane formed by the second direction and the third direction, so as to ensure the accuracy of the angle setting of the human-machine upper eye line 4.

[0068] It should also be noted that, in this embodiment, the human-machine upper eye line 4 is located on the side of the first horizontal reference line close to the roof of the car 100. This arrangement can ensure the extension direction of the human-machine upper eye line 4, so as to further determine the arrangement position of the sun visor hinge axis 9, and enable the sun visor 8 to block sunlight from entering the driver's eyes.

[0069] In this embodiment, the first horizontal baseline is first determined by the human-machine upper eye point 1, which passes through the human-machine upper eye point 1. Then, the human-machine upper field of view angle in a third direction is obtained. Finally, the human-machine upper eye line of sight 4 is established by using the first horizontal baseline as a reference and the human-machine upper field of view angle as the included angle. This setting ensures the accuracy of the extension direction of the human-machine upper eye line of sight 4, thereby improving the accuracy of the position of the first arrangement area and improving the arrangement efficiency of the sun visor hinge axis 9.

[0070] In another embodiment of the present invention, step S200, which involves establishing an upper eye line 4 extending along a second direction based on the upper eye point 1, establishing a lower eye line 5 extending along a second direction based on the lower eye point 2, and establishing a boundary curve 6 extending upwards on a third side based on the head envelope surface 3, further includes at least:

[0071] S240. Determine the second horizontal reference line extending along the second direction based on the lower eye point 2 of the human-machine interface;

[0072] It is understood that the second horizontal reference line is set through the lower eye point 2 of the human-machine interface, and the setting of the second horizontal reference line provides a reference for the establishment of the lower eye line of the human-machine interface.

[0073] S250, Obtain the human-machine field of view angle in a third-party orientation;

[0074] It should be noted that the present invention does not limit the specific value of the human-machine lower field of view angle. The human-machine lower field of view angle is the angle requirement of the human-machine lower field of view line of the vehicle 100. For different vehicle models, the human-machine lower field of view angle is also different. At the same time, for sun visors 8 with different structural forms and structural dimensions, the human-machine lower field of view angle is also different. Therefore, in actual setting, it can be selected according to the specific vehicle model and the structural form of the sun visor 8. The present invention does not impose any restrictions on this.

[0075] S260. Using the second horizontal reference line as a reference and the angle between the human-machine lower field of view as an angle, an intermediate line of sight 7 is established, wherein the sunshade 8 has a lowest point in the third direction during its rotation stroke, and the lowest point is located between the second horizontal reference line and the intermediate line of sight 7.

[0076] It is understood that in this embodiment, both the second horizontal reference line and the intermediate line of sight 7 are set through the lower eye point 2 of the human-machine interface, and since the lower field of vision angle of the human-machine interface is only set in the third direction, the second horizontal reference line and the intermediate line of sight 7 are on the same plane formed by the second direction and the third direction, so as to ensure the accuracy of the angle setting of the intermediate line of sight 7.

[0077] It should also be noted that in this embodiment, the intermediate line of sight 7 is located on the side of the second horizontal reference line close to the roof of the car 100. This arrangement ensures the extension direction of the intermediate line of sight 7, so as to further determine the arrangement position of the sun visor hinge axis 9, and enable the sun visor 8 to block sunlight from entering the driver's eyes.

[0078] In addition, to ensure that the sun visor 8 can still block sunlight from reaching the driver's eyes when the driver's eyes are at the lower eye point 2, in this embodiment, the lowest point is located between the second horizontal reference line and the intermediate line of sight 7.

[0079] S270. Establish the human-machine lower eye line of sight 5 based on the intermediate line of sight 7.

[0080] It is understood that the intermediate line of sight 7 is set through the lower eye point 2 of the human-machine interface, and the intermediate line of sight 7 is close to the lowest point to ensure that sunlight will never shine on the driver's glasses. Therefore, the lower eye point 5 of the human-machine interface is established based on the intermediate line of sight 7 to accurately determine the position of the first arrangement area and improve the arrangement efficiency of the sun visor hinge axis 9.

[0081] In this embodiment, the second horizontal baseline is first determined by the lower eye point 2 of the human-machine interface. The second horizontal baseline passes through the lower eye point 2. Then, the lower field of view angle of the human-machine interface in a third direction is obtained. Next, using the second horizontal baseline as a reference and the lower field of view angle as an angle, a central line of sight 7 is established. This central line of sight is located on the side of the lowest point away from the second horizontal baseline, ensuring that the sun visor 8 can always block sunlight from reaching the driver's eyes. Finally, the lower eye of the human-machine interface 5 is established based on the central line of sight 7. This configuration ensures the accuracy of the extension direction of the lower eye of the human-machine interface 5, thereby improving the accuracy of the position of the first arrangement area and improving the arrangement efficiency of the sun visor hinge axis 9.

[0082] Specifically, in this embodiment, the human-machine lower eye time is A, where A ≤ 10°. This setting ensures that the sun visor 8 can effectively block sunlight from reaching the driver's eyes without obstructing the driver's normal driving view.

[0083] In a further embodiment of the present invention, step S270, establishing the human-machine lower eye line of sight 5 based on the intermediate line of sight 7, includes:

[0084] S271. Obtain the distance between the lowest point and the hinge axis 9 of the sunshade in the third direction;

[0085] It is understood that the hinge axis 9 of the sun visor is located on the side of the lowest point facing the roof of the car 100, and the distance between the lowest point and the hinge axis 9 of the sun visor in the third direction is the size of the sun visor 8 in the third direction.

[0086] S272. Shift the intermediate line of sight 7 along a third direction according to the distance to establish the human-machine lower eye line of sight 5.

[0087] It should be noted that the intermediate line of sight 7 is set corresponding to the lowest point. Therefore, the intermediate line of sight 7 is shifted by the distance of the spacing along a third direction so that the shifted line of sight is set corresponding to the hinge axis 9 of the sun visor. In this way, the lower eye line of sight 5 of the human-machine interface can be established.

[0088] In this embodiment, the distance between the lowest point and the hinge axis 9 of the sun visor in a third direction is first obtained. Then, the lower eye line of sight 7 of the human-machine interface is translated along the third direction according to the distance to establish the lower eye line of sight 5. With this setting, the translated line of sight is the lower eye line of sight 5, which can improve the accuracy of the position of the first arrangement area.

[0089] In another embodiment of the present invention, step S200, which involves establishing an upper eye line 4 extending along a second direction based on the upper eye point 1, establishing a lower eye line 5 extending along a second direction based on the lower eye point 2, and establishing a boundary curve 6 extending upwards on a third side based on the head envelope surface 3, further includes at least:

[0090] S280, Obtain the minimum offset distance of the head envelope surface 3;

[0091] Understandably, to ensure that the sun visor 8 will not cause pressure on the driver when the driver is using it, thus ensuring the driver's normal user experience, the minimum offset distance needs to be determined before establishing the boundary curve 6. That is, the sun visor 8 will not cause pressure on the driver when the distance between the sun visor hinge axis 9 and the head envelope surface 3 is not less than the minimum offset distance.

[0092] It should be noted that, since the head envelope surface 3 is obtained through the outline of the driver's head, in this embodiment, the head envelope surface 3 is specifically a hemispherical surface.

[0093] Of course, the present invention does not limit the specific value of the minimum offset distance. The minimum offset distance can be adjusted according to the different structural forms and structural dimensions of the sunshade 8. Therefore, it can be selected according to the requirements in actual setting.

[0094] In this embodiment, the minimum offset distance is B, where B ≥ 240mm. This setting ensures that the arrangement of the sun visor hinge axis 9 does not cause a feeling of oppression when the driver uses the sun visor 8.

[0095] S290. Expand the head envelope surface 3 according to the minimum offset distance to obtain the boundary surface;

[0096] It is understood that in this embodiment, the head envelope surface 3 is set as a hemispherical surface, therefore, the boundary surface should also be a hemispherical surface.

[0097] Specifically, in this embodiment, the radius of the head envelope surface 3 is b, and the radius of the boundary surface is b+B.

[0098] S2100. Establish the boundary curve 6 based on the boundary surface.

[0099] It is understood that the boundary curve 6 is in the same plane as the human-machine upper eye line of sight 4 and the human-machine lower eye line of sight 5.

[0100] In the technical solution of this embodiment, the minimum offset distance of the head envelope surface 3 is first obtained to determine the boundary surface. The minimum offset distance is the minimum distance between the head envelope surface 3 and the sun visor hinge axis 9. Then, the boundary curve 6 is established according to the boundary surface so that the boundary curve 6 can jointly enclose the intersection area with the human-machine upper eye line 4 and the human-machine lower eye line 5, so that the sun visor hinge axis 9 can be arranged in the first arrangement area.

[0101] In a further embodiment of the present invention, step S2100, establishing the boundary curve 6 based on the boundary surface, includes:

[0102] S2110. Obtain the contour line of the boundary surface in the first direction to obtain the boundary curve 6.

[0103] In this embodiment, since the boundary surface is specifically configured as a hemispherical surface, the projection of the boundary surface in the first direction is a semi-circular pattern. At this time, the outline of the boundary surface in the first direction forms the curve of the semi-circular pattern, and this outline is the boundary curve 6. Simultaneously, this configuration also ensures that the boundary curve 6, the upper eye line of the human-machine interface 4, and the lower eye line of the human-machine interface 5 are on the same plane.

[0104] In other embodiments of the present invention, after step S300, which involves obtaining the intersection area of ​​the human-machine upper eye line of sight 4, the human-machine lower eye line of sight 5, and the boundary curve 6, wherein the intersection area is the first arrangement area of ​​the sun visor hinge axis 9, the method further includes:

[0105] S400, Obtain the preliminary shape of the ceiling;

[0106] It is understood that the preliminary styling surface is the surface shape of the roof inside the driver's cab of the vehicle 100.

[0107] S500. Based on the preliminary shaping surface, obtain the outline of the ceiling in the first direction to obtain the ceiling boundary line 10.

[0108] It is understood that the shape of the preliminary shaping surface in the first direction is usually planar, so the outline of the ceiling in the first direction can be obtained directly from the preliminary shaping surface.

[0109] S600: Obtain the intersection area of ​​the ceiling boundary line 10, the upper eye line of the human-machine interface 4, the lower eye line of the human-machine interface 5, and the boundary curve 6 to obtain the second arrangement area.

[0110] It is understood that the sun visor hinge needs to be arranged on the ceiling, and in order to ensure the smooth rotation of the sun visor 8, the sun visor hinge axis 9 needs to be arranged at intervals from the ceiling. Therefore, the second arrangement area needs to be further enclosed according to the ceiling boundary line 10, the human-machine upper eye line 4, the human-machine lower eye line 5, and the boundary curve 6. The second arrangement area is for the arrangement of the sun visor hinge axis 9, so as to avoid the sun visor hinge axis 9 being arranged inside the ceiling.

[0111] In this embodiment, the preliminary shaping surface is first obtained, and then the ceiling boundary line 10 is established through the preliminary shaping surface. The ceiling boundary line 10, the upper eye line 4 of the human-machine interface, the lower eye line 5 of the human-machine interface, and the boundary curve 6 can further enclose the second arrangement area. This arrangement can further restrict the arrangement position of the sun visor hinge axis 9, thereby avoiding the sun visor hinge axis 9 being arranged inside the ceiling, reducing repeated adjustments, and improving the arrangement efficiency of the sun visor hinge axis 9.

[0112] The present invention also proposes a car 100, which includes a sun visor 8, the sun visor 8 having a sun visor hinge, the arrangement position of the axis of the sun visor hinge being based on the above-described method for selecting the arrangement position of the sun visor hinge axis, the specific steps of which refer to the above embodiments. Since the car 100 adopts all the technical solutions of all the above embodiments, it has at least all the beneficial effects brought about by the technical solutions of the above embodiments, which will not be elaborated here.

[0113] The above description is merely an exemplary embodiment of the present invention and does not limit the patent scope of the present invention. Any equivalent structural transformations made using the contents of the present invention specification and drawings under the technical concept of the present invention, or direct / indirect applications in other related technical fields, are included within the patent protection scope of the present invention.

Claims

1. A method for selecting the position of the hinge axis of a sun visor, wherein the hinge axis of the sun visor extends along a first direction, and the sun visor is rotatably arranged along the hinge axis of the sun visor, characterized in that, include: According to the human-machine field of vision requirements, human-machine head arrangement data is obtained, wherein the human-machine head arrangement data includes the human-machine upper eye point, the human-machine lower eye point, and the head envelope surface; Based on the human-machine upper eye point, a human-machine upper eye line of sight extending along the second direction is established; based on the human-machine lower eye point, a human-machine lower eye line of sight extending along the second direction is established; and based on the head envelope surface, a boundary curve extending upward on a third side is established. Obtain the intersection area of ​​the upper eye line of the human-machine interface, the lower eye line of the human-machine interface, and the boundary curve. The intersection area is the first arrangement area of ​​the hinge axis of the sun visor. The first direction is the Y-axis direction of the car, the second direction is the X-axis direction of the car, and the third direction is the Z-axis direction of the car.

2. The method for selecting the position of the hinge axis of the sunshade as described in claim 1, characterized in that, The steps of establishing an upper eye line of sight extending along a second direction based on the upper eye point of the human-machine interface, establishing a lower eye line of sight extending along the second direction based on the lower eye point of the human-machine interface, and establishing a boundary curve extending upward from a third direction based on the head envelope surface include: A first horizontal reference line extending along the second direction is determined based on the human-machine interface eye point; Obtain the human-machine field of view from a third-party perspective; The human-machine upper eye line is established with the first horizontal baseline as the reference and the human-machine upper field of vision angle as the included angle.

3. The method for selecting the position of the hinge axis of the sunshade as described in claim 1, characterized in that, The steps of establishing an upper eye line of sight extending along a second direction based on the upper eye point of the human-machine interface, establishing a lower eye line of sight extending along the second direction based on the lower eye point of the human-machine interface, and establishing a boundary curve extending upward from a third direction based on the head envelope surface include: A second horizontal reference line extending along the second direction is determined based on the lower eye point of the human-machine interface; Obtain the human-machine field of view angle from a third-party perspective; Using the second horizontal baseline as a reference and the angle between the human-machine lower field of view and the intermediate line of view, an intermediate line of sight is established, wherein the sun visor has a lowest point in the third direction during its rotation stroke, and the lowest point is located between the second horizontal baseline and the intermediate line of sight; The human-machine lower eye line of sight is established based on the intermediate line of sight.

4. The method for selecting the position of the hinge axis of the sunshade as described in claim 3, characterized in that, The step of establishing the human-machine lower eye line of sight based on the intermediate line of sight includes: Obtain the distance between the lowest point and the axis of the sunshade hinge in the third direction; The intermediate line of sight is translated along a third direction according to the distance to establish the human-machine lower eye line of sight.

5. The method for selecting the position of the hinge axis of the sunshade as described in claim 3, characterized in that, The lower eye angle of the human-machine interface is A, where A ≤ 10°.

6. The method for selecting the position of the hinge axis of the sunshade as described in claim 1, characterized in that, The steps of establishing an upper eye line of sight extending along a second direction based on the upper eye point of the human-machine interface, establishing a lower eye line of sight extending along the second direction based on the lower eye point of the human-machine interface, and establishing a boundary curve extending upward from a third direction based on the head envelope surface include: Obtain the minimum offset distance of the head envelope surface; The head envelope is expanded according to the minimum offset distance to obtain the boundary surface; The boundary curve is established based on the boundary surface.

7. The method for selecting the position of the hinge axis of the sunshade as described in claim 6, characterized in that, The step of establishing the boundary curve based on the boundary surface includes: Obtain the contour line of the boundary surface in the first direction to obtain the boundary curve.

8. The method for selecting the position of the hinge axis of the sunshade as described in claim 6, characterized in that, The minimum offset distance is B, where B ≥ 240 mm.

9. The method for selecting the position of the hinge axis of the sunshade as described in claim 1, characterized in that, After the step of obtaining the intersection area of ​​the human-machine upper eye line of sight, the human-machine lower eye line of sight, and the boundary curve, wherein the intersection area is the first arrangement area of ​​the sun visor hinge axis, the method further includes: Obtain the initial shape of the ceiling; Based on the preliminary design surface, the outline of the ceiling in the first direction is obtained to obtain the ceiling boundary line; The intersection area of ​​the ceiling boundary line, the upper eye line of the human-machine interface, the lower eye line of the human-machine interface, and the boundary curve is obtained to obtain the second arrangement area.

10. A car, characterized in that, The vehicle includes a sun visor having a sun visor hinge, the arrangement of the axis of the sun visor hinge being based on the method for selecting the arrangement of the axis of the sun visor hinge as described in any one of claims 1 to 9.

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