A method for checking the field of vision of a vehicle

Abstract

The present application relates to the technical field of rearview mirror field of view calibration, and discloses a kind of automobile field of view calibration method, including left side field of view calibration method: obtaining left side rearview mirror area data;Extract left side door frame strip area curved surface;With driver eye point as point light source, obtain the reflection curve that the point on left side door frame strip area curved surface meets certain incidence angle is connected;The reflection curve obtained is reduced and enlarged, and first reflection curve and second reflection curve are obtained;Make the tangent plane of connecting first reflection curve and second reflection curve;The distance from tangent plane to left side rearview mirror mirror shell is measured, if distance is greater than preset value then meet left side man-machine field of view requirement.In addition, the present application also provides right side field of view calibration method.The present application can guarantee that there is obvious gap between A column and left side rearview mirror mirror shell for observing road conditions when turning, and right side rearview mirror lens is not completely blocked by A column and glass outer clamping strip, to improve automobile A column field of view visual comfort and driving safety.

Description

TECHNICAL FIELD

[0001] The present application relates to the field of outside rearview mirror field of view calibration, and particularly relates to a vehicle field of view calibration method. BACKGROUND

[0002] Currently, all vehicles are equipped with outside rearview mirrors, but the arrangement position of the outside rearview mirror and the size of the mirror shell and the mirror lens have a huge impact on the A-pillar field of view. The A-pillar blind area refers to the field of view blind area in the driving process. Generally, a passenger car has three pillars on each side of the vehicle body, and the inclined pillars on both sides of the front windshield are called A-pillars. Whenever the driver's field of view is partially blocked by the A-pillar when the vehicle is turning or entering a curve, a blind area in the field of view is caused.

[0003] Since the driver's seat in domestic vehicles is on the left side, the A-pillar has the greatest impact on the left side of the field of view, and the blind area angle formed on the right side is also wider. If the left side of the outside rearview mirror shell blocks the A-pillar field of view, the A-pillar and the left side of the outside rearview mirror will form an integrated blind area, which will affect the driver's visual comfort, and in severe cases, it may even cause driving safety accidents. In addition, if the right side of the outside rearview mirror lens is blocked by the A-pillar, it will also affect the driver's visual comfort. The traditional outside rearview mirror calibration method only calibrates whether the outside rearview mirror meets the regulations, but does not mention whether the left side of the outside rearview mirror shell will block the A-pillar field of view, etc. There is a problem of not evaluating the A-pillar field of view blind area, which leads to low A-pillar field of view visual comfort, and seriously affects driving safety.

[0004] The prior art discloses a kind of outside rearview mirror field of view calibration methods, steps are as follows: extracting eye point a and outside rearview mirror mirror surface b, according to the overall vehicle contour, outside rearview mirror regulation area c is drawn;Mirror surface is restored to spherical surface according to mirror surface curvature radius, spherical surface is rotated and translated along X, Y, Z axis according to mirror surface center point;Suppose eye point is light source incident point, the boundary point of outside rearview mirror regulation area c is reflection point, spherical surface is reflection surface, the symmetry principle of light reflection is used to draw left and right outside rearview mirror reflection line d, and form symmetrical point on spherical surface, and symmetrical point is connected to form regulation area projection area e;Spherical surface is rotated or translated along X, Y, Z axis, if regulation area projection area formed by eye point and outside rearview mirror regulation boundary can be moved to the effective position of outside rearview mirror mirror surface, it means that the rearview mirror of this position meets the regulation requirement. The patent only calibrates whether the outside rearview mirror meets the regulations, but does not mention whether the left side of the outside rearview mirror shell will block the A-pillar field of view, etc. There is a problem of not evaluating the A-pillar field of view blind area, which leads to low A-pillar field of view visual comfort, and seriously affects driving safety. SUMMARY

[0005] One of the objectives of this invention is to provide a vehicle vision verification method that can improve the visual comfort and driving safety of the A-pillar, in order to solve the problem that the existing technology only verifies whether the external rearview mirrors meet the regulations, resulting in low visual comfort of the A-pillar and affecting driving safety.

[0006] To achieve the above objectives, the present invention provides a method for verifying vehicle visibility, characterized by including a method for verifying left-side visibility:

[0007] Acquire data for the left exterior rearview mirror area;

[0008] Extract the curved surface of the left door frame area;

[0009] Using the driver's eye point as the point light source, obtain the reflection curve formed by connecting points on the curved surface of the left door frame area that satisfy a certain incident angle;

[0010] The obtained reflection curve is reduced in size to obtain the first reflection curve;

[0011] The obtained reflection curve is magnified to obtain the second reflection curve;

[0012] A plane is drawn connecting the first reflection curve and the second reflection curve to obtain a cross-section. The cross-section consists of several line segments connecting corresponding points of the first reflection curve and the second reflection line, and the line segments connecting corresponding points of the first reflection curve and the second reflection line pass through the driver's eye point.

[0013] Measure the distance from the cut surface to the left side rearview mirror housing. If the distance is greater than the preset value, it means that the left field of view meets the requirements of the left human-machine field of view.

[0014] Furthermore, the CATIA software was used for verification:

[0015] Modeling is performed based on the acquired data of the left exterior rearview mirror area;

[0016] Extract the curved surface of the left door frame area using multiple extraction commands;

[0017] The driver's eye point and the curved surface of the left door frame are selected using the reflection line command to generate a reflection curve;

[0018] Obtain the first and second reflection curves using the scaling command;

[0019] The first and second reflection curves are connected by bridging commands to generate a cross-section.

[0020] Furthermore, the data for the left-side exterior rearview mirror area includes the position, shape, and size of the left-side exterior rearview mirror lens, left-side exterior rearview mirror housing, left-side door trim groove, left-side door frame strip, left-side glass outer trim strip, left-side door sealing strip, left-side front door interior trim panel, and left-side A-pillar interior trim panel.

[0021] Furthermore, the ratio of the first reflection curve to the reflection curve is y1, where y1∈(0,0.5).

[0022] Furthermore, the ratio of the second reflection curve to the reflection curve is y2, where y2∈(1,1.5).

[0023] Furthermore, the driver's eye point is taken as the midpoint of the line connecting the center points of the ellipses of the driver's left and right eyes.

[0024] Furthermore, it also includes a method for verifying the right visual field:

[0025] Acquire data for the right-side exterior rearview mirror area;

[0026] Extract the outline of the right-side exterior rearview mirror lens;

[0027] The outline of the extracted right-side exterior rearview mirror lens is reduced in size;

[0028] A curved surface is constructed connecting the outline of the right-side rearview mirror lens and the reduced outline of the right-side rearview mirror lens to obtain a field of view. The field of view consists of several line segments connecting the corresponding points of the outline of the right-side rearview mirror lens and the reduced outline of the right-side rearview mirror lens, and the line segments connecting the corresponding points of the outline of the right-side rearview mirror lens and the reduced outline of the right-side rearview mirror lens pass through the driver's eye point.

[0029] Measure the distances between the field of view and the A-pillar and the outer strip of the right-side glass, respectively. If the distances between the field of view and the A-pillar, and between the field of view and the outer strip of the right-side glass, are both greater than the preset values, it means that the right-side field of view meets the requirements of the left-side human-machine field of view.

[0030] Furthermore, the CATIA software was used for verification:

[0031] Modeling was performed based on data from the right-side exterior rearview mirror area;

[0032] Extract the outline of the right-side exterior rearview mirror lens using the boundary command;

[0033] The outline of the extracted right-side exterior rearview mirror lens is reduced by using the zoom command;

[0034] The bridging command connects the outline of the right-side rearview mirror lens with the reduced outline of the right-side rearview mirror lens to generate a field of view.

[0035] Furthermore, the data for the right-side exterior rearview mirror area includes the position, shape, and size of the right-side exterior rearview mirror lens, the right-side exterior rearview mirror housing, the right-side door trim groove, the right-side door frame strip, the right-side glass outer trim strip, the right-side door sealing strip, the right front door interior trim panel, and the right A-pillar interior trim panel.

[0036] Furthermore, the ratio of the outline of the reduced right-side rearview mirror lens to the outline of the original right-side rearview mirror lens is y3, where y3∈(0,0.5).

[0037] Compared with the prior art, the beneficial effects of the present invention are as follows:

[0038] This invention extracts the curved surface of the left door frame area and uses the driver's eye point as a point light source to obtain the reflection curve formed by connecting points on the curved surface of the left door frame area that meet a certain incident angle. The distance from the tangent connecting the reduced and enlarged reflection curves to the left exterior rearview mirror housing is measured. If the distance between the tangent and the left exterior rearview mirror housing is greater than a preset value, the field of vision requirement is met; otherwise, it is not. Since the A-pillar is located between the engine compartment and the driver's compartment, and is positioned above the left and right rearview mirrors, this invention ensures a significant gap between the A-pillar and the left exterior rearview mirror housing by checking the distance between the tangent and the left exterior rearview mirror housing. This gap allows for observation of road conditions when turning, improving visual comfort and driving safety due to the A-pillar's visibility.

[0039] Furthermore, this invention obtains a field of view surface by constructing a curved surface tangentially connected to the outline of the right-side rearview mirror lens and a reduced outline of the right-side rearview mirror lens. The distances between the field of view surface and the A-pillar and the outer edge of the right-side glass are measured. If both the distance between the field of view surface and the A-pillar, and the distance between the field of view surface and the outer edge of the right-side glass are greater than preset values, the field of view requirement is met; otherwise, it is not. Maintaining a certain distance between the field of view surface and the A-pillar, and between the field of view surface and the outer edge of the right-side glass, ensures that the right-side rearview mirror lens is not completely obstructed by the A-pillar and the outer edge of the glass, thereby improving the visual comfort and driving safety of the vehicle's A-pillar visibility. Attached Figure Description

[0040] Figure 1 This is a flowchart of the field of view verification method of the present invention.

[0041] Figure 2 This is a schematic diagram showing the positions of the driver's eye point, the left exterior rearview mirror housing, and the left door frame strip of the present invention.

[0042] Figure 3 This is a schematic diagram of the left-side field of view of the present invention.

[0043] Figure 4 This is a schematic diagram of a cross-section of the present invention.

[0044] Figure 5 This is a schematic diagram illustrating the distance from the cross-section to the housing of the left-side exterior rearview mirror according to the present invention.

[0045] Figure 6This is a schematic diagram showing the positions of the driver's eye point, the right exterior rearview mirror lens, the right side sealing strip, and the right side glass outer clamping strip of the present invention.

[0046] Figure 7 This is a schematic diagram of the right-side field of view of the present invention.

[0047] Figure 8 This is a schematic diagram of the field of view of the present invention.

[0048] Figure 9 This is a schematic diagram illustrating the distance between the field of view and the A-pillar and the outer strip of the right-side glass in this invention. Detailed Implementation

[0049] The embodiments of the present invention will be described below with reference to the accompanying drawings and preferred embodiments. Those skilled in the art can easily understand other advantages and effects of the present invention from the content disclosed in this specification. The present invention can also be implemented or applied through other different specific embodiments, and various details in this specification can also be modified or changed based on different viewpoints and applications without departing from the spirit of the present invention. It should be understood that the preferred embodiments are only for illustrating the present invention and not for limiting the scope of protection of the present invention.

[0050] It should be noted that the illustrations provided in the following embodiments are only schematic representations of the basic concept of the present invention. Therefore, the drawings only show the components related to the present invention and are not drawn according to the actual number, shape and size of the components in the actual implementation. In the actual implementation, the form, quantity and proportion of each component can be arbitrarily changed, and the layout of the components may also be more complex.

[0051] like Figures 1 to 9 As shown, this embodiment of the invention provides a method for calibrating vehicle visibility, including a method for calibrating left-side visibility:

[0052] Acquire data for the left exterior rearview mirror area;

[0053] Extract the curved surface of the left door frame area;

[0054] Using the driver's eye point as a point light source, obtain the reflection curve formed by connecting points on the curved surface of the left door frame area that satisfy a certain incident angle; specifically, it is the outermost contour line of the curved surface of the left door frame area as seen from the driver's eye point as the origin.

[0055] The obtained reflection curve is reduced in size to obtain the first reflection curve;

[0056] The obtained reflection curve is magnified to obtain the second reflection curve;

[0057] A surface is constructed connecting the first reflection curve and the second reflection curve to obtain a cross-section. The cross-section consists of several line segments connecting corresponding points of the first reflection curve and the second reflection line, and the line segments connecting corresponding points of the first reflection curve and the second reflection line pass through the driver's eye point. Specifically, the reflection line, the first reflection curve, and the second reflection curve are all on the cross-section. The first reflection curve and the second reflection curve are located on both sides of the reflection curve. Corresponding points on the first reflection curve and the second reflection curve are connected by straight line segments, and each straight line segment passes through the driver's eye point. The line segments connecting corresponding points on the first reflection curve and the second reflection curve form the cross-section. The first reflection curve and the second reflection curve are the outer contour lines on both sides of the cross-section.

[0058] Measure the distance from the cut surface to the left side rearview mirror housing. If the distance is greater than the preset value, it means that the left field of view meets the requirements of the left human-machine field of view.

[0059] This embodiment extracts the curved surface of the left door frame area and uses the driver's eye point as a point light source to obtain the reflection curve formed by connecting points on the curved surface of the left door frame area that meet a certain incident angle. The distance from the tangent connecting the reduced and enlarged reflection curves to the left exterior rearview mirror housing is measured. If the distance between the tangent and the left exterior rearview mirror housing is greater than a preset value, the field of vision requirement is met; otherwise, it is not. Since the A-pillar is located between the engine compartment and the driver's compartment, and is positioned above the left and right rearview mirrors, this embodiment ensures a significant gap between the A-pillar and the left exterior rearview mirror housing by checking the distance between the tangent and the left exterior rearview mirror housing. This gap allows for observation of road conditions when turning, improving the visual comfort and driving safety of the vehicle's A-pillar field of vision.

[0060] The left-side field of vision is primarily determined by the positional relationship between the driver's eye level, the left exterior rearview mirror housing, and the left door frame. Figure 2 As shown. For the left field of vision, the following must be met: Figure 3 The state is such that there is a clear gap between the A-pillar and the outer rearview mirror housing, which is used to observe road conditions when turning.

[0061] Specifically, the data for the left-side exterior rearview mirror area includes the position, shape, and size of the left-side exterior rearview mirror lens, left-side exterior rearview mirror housing, left-side door trim groove, left-side door frame strip, left-side glass outer trim strip, left-side door sealing strip, left front door interior trim panel, and left A-pillar interior trim panel. It should be noted that the left-side exterior rearview mirror area data includes all data that might obstruct the view when observing the A-pillar area.

[0062] Optionally, the ratio of the first reflection curve to the second reflection curve is y1, where y1 ∈ (0, 0.5). The ratio of the second reflection curve to the second reflection curve is y2, where y2 ∈ (1, 1.5). The driver's eye point is taken as the midpoint of the line connecting the centers of the driver's left and right eye ellipses. It should be noted that the method for determining the driver's left and right eye ellipses follows the requirements of SAE J941-2010. Different companies and different vehicle models can select the eye point according to their company's standards when applying this method.

[0063] In this embodiment, the left field of view verification method uses CATIA software for verification. Therefore, the specific steps of the left field of view verification method are as follows:

[0064] Modeling is performed based on the acquired data of the left exterior rearview mirror area;

[0065] Extract the curved surface of the left door frame area using the "Multiple Extraction" command;

[0066] Using the "Reflection Line" command, select the driver's eye point and the curved surface of the left door frame area from "Multi-Extraction". With the driver's eye point as the origin and the curved surface of the left door frame area as the support surface, select the type as "Quadratic Curve" and the angle as 90° to generate a reflection curve.

[0067] Using the "Zoom" command, select the reflection curve generated by "Reflection Line" and the driver's eye point, set the ratio to 0.5, and generate the first reflection curve;

[0068] Using the "Zoom" command, select the reflection curve generated by "Reflection Line" and the driver's eye point, set the ratio to 1.5, and generate a second reflection curve;

[0069] Using the "Bridge" command, select the first and second reflection curves to generate a cross-section, as shown below. Figure 4 As shown;

[0070] Measure the distance from the cut surface to the left exterior rearview mirror housing, such as... Figure 5 As shown, if the distance is greater than the preset value, it means that the left-side field of view meets the requirements for the left-side human-machine field of view. The preset distance is defined as a target based on the field of view requirements of different projects (company or industry standards, vehicle models, etc.) (here, the target is tentatively set to ≥8mm). By comparing the measured value (8.8mm) and the target value (≥8mm), it can be determined that the state meets the requirements for the left-side human-machine field of view.

[0071] Furthermore, this embodiment also includes a method for verifying the right-side field of view, as detailed below:

[0072] Acquire data for the right-side exterior rearview mirror area;

[0073] Extract the outline of the right-side exterior rearview mirror lens;

[0074] The outline of the extracted right-side exterior rearview mirror lens is reduced in size;

[0075] A curved surface is constructed connecting the outline of the right-side rearview mirror lens and the reduced outline of the right-side rearview mirror lens to obtain a field of view. The field of view consists of several line segments connecting corresponding points of the outline of the right-side rearview mirror lens and the reduced outline of the right-side rearview mirror lens. The line segments connecting the corresponding points of the outline of the right-side rearview mirror lens and the reduced outline of the right-side rearview mirror lens pass through the driver's eye point. Specifically, the outline of the right-side rearview mirror lens and the reduced outline of the right-side rearview mirror lens are the two outer outlines of the field of view. The point on the reduced outline of the right-side rearview mirror lens that corresponds to the outline of the right-side rearview mirror lens is located on the straight line connecting the outline of the right-side rearview mirror lens and the driver's eye point. Therefore, the field of view consists of a straight line segment connecting the corresponding points of the outline of the right-side rearview mirror lens and the reduced outline of the right-side rearview mirror lens, and this connecting straight line segment passes through the driver's eye point.

[0076] Measure the distances between the field of view and the A-pillar and the outer strip of the right-side glass, respectively. If the distances between the field of view and the A-pillar, and between the field of view and the outer strip of the right-side glass, are both greater than the preset values, it means that the right-side field of view meets the requirements of the left-side human-machine field of view.

[0077] This embodiment obtains the field of view by constructing a curved surface tangentially connected to the outline of the right-side rearview mirror lens and its reduced size. The distances between the field of view and the A-pillar and the right-side glass outer strip are measured. If both the distance between the field of view and the A-pillar and the distance between the field of view and the right-side glass outer strip are greater than preset values, the field of view requirement is met; otherwise, it is not. Maintaining a certain distance between the field of view and the A-pillar, and between the field of view and the right-side glass outer strip, ensures that the right-side rearview mirror lens is not completely obstructed by the A-pillar and the glass outer strip, thereby improving the visual comfort and driving safety of the vehicle's A-pillar field of view. The right-side field of view is mainly determined by the positional relationship between the driver's eye point, the right-side rearview mirror lens, the right-side sealing strip, and the right-side glass outer strip. Figure 6 As shown. For the right-side field of vision, the following must be met: Figure 7 The right exterior rearview mirror lens is completely unobstructed by the A-pillar and the outer glass strip.

[0078] Specifically, the right-side rearview mirror area data in this embodiment includes the position, shape, and size of the right-side rearview mirror lens, right-side rearview mirror housing, right-side door trim groove, right-side door frame strip, right-side glass outer strip, right-side door sealing strip, right-side front door interior panel, and right-side A-pillar interior panel. It should be noted that the right-side rearview mirror area data includes all data that might obstruct the field of vision when observing the A-pillar area. Optionally, the ratio of the outline of the reduced right-side rearview mirror lens to the outline of the original right-side rearview mirror lens is y3, where y3 ∈ (0, 0.5).

[0079] In this embodiment, the right-side field of view verification method uses CATIA software. Therefore, the specific steps of the right-side field of view verification method are as follows:

[0080] Modeling was performed based on data from the right-side exterior rearview mirror area;

[0081] Select the right exterior rearview mirror lens using the "Boundary" command to extract the outline of the right exterior rearview mirror lens;

[0082] Select the outline of the right side mirror using the "Zoom" command, and reduce the extracted outline of the right side mirror lens by a ratio of 0.5.

[0083] Using the "Bridge" command, select the outline of the right-side exterior rearview mirror lens and its reduced size. Connect the outlines of the right-side exterior rearview mirror lens and the reduced size to generate a field of view plane, such as... Figure 8 As shown;

[0084] Measure the distances between the field of view and the A-pillar and the outer edge of the right-side glass, respectively. Figure 9 As shown, if the distance between the field of view and the A-pillar, and the distance between the field of view and the outer edge of the right-side glass, are both greater than the preset values, it means that the right-side field of view meets the requirements for the left-side human-machine field of view. The preset value of the distance is defined as a target based on the field of view requirements of different projects (company or industry standards, vehicle models, etc.) (here, the target is tentatively set to ≥10mm). By comparing the measured distance from the field of view to the A-pillar (16mm), the distance from the field of view to the outer edge of the glass (11.3mm), and the target value (≥10mm), it can be determined that this state meets the requirements for the right-side human-machine field of view.

[0085] In summary, the vehicle visibility verification method provided by this invention includes a left-side visibility verification method and a right-side visibility verification method. The left-side visibility verification method extracts the curved surface of the left door frame area and, using the driver's eye point as a point light source, obtains the reflection curve formed by connecting points on the curved surface of the left door frame area that satisfy a certain incident angle. The distance from the connecting surface of the reduced and enlarged reflection curves to the left exterior rearview mirror housing is measured. If the distance between the connecting surface and the left exterior rearview mirror housing is greater than a preset value, the visibility requirement is met; otherwise, it is not. Since the A-pillar is located between the engine compartment and the driver's compartment, and is positioned above the left and right rearview mirrors, this embodiment ensures a significant gap between the A-pillar and the left exterior rearview mirror housing by verifying the distance between the connecting surface and the left exterior rearview mirror housing. This gap allows for observation of road conditions during turns, improving the visual comfort and driving safety of the vehicle's A-pillar visibility. The right-side field of view calibration method involves constructing a curved surface tangent to the outline of the right-side rearview mirror lens and its reduced size to obtain the field of view plane. The distances between this field of view plane and the A-pillar and the outer edge of the right-side glass are measured. If both the distances between the field of view plane and the A-pillar, and between the field of view plane and the outer edge of the right-side glass, are greater than preset values, the field of view requirement is met; otherwise, it is not. Maintaining a certain distance between the field of view plane and the A-pillar, and between the field of view plane and the outer edge of the right-side glass, ensures that the right-side rearview mirror lens is not completely obstructed by the A-pillar and the outer edge of the glass, thereby improving the visual comfort and driving safety of the vehicle's A-pillar field of view.

[0086] The above embodiments are merely preferred embodiments provided to fully illustrate the present invention, and the scope of protection of the present invention is not limited thereto. Equivalent substitutions or modifications made by those skilled in the art based on the present invention are all within the scope of protection of the present invention.

Claims

1. A method for verifying vehicle visibility, characterized in that, Including methods for verifying left-side visual field: Acquire data for the left exterior rearview mirror area; Extract the curved surface of the left door frame area; Using the driver's eye point as the point light source, obtain the reflection curve formed by connecting points on the curved surface of the left door frame area that satisfy a certain incident angle; The obtained reflection curve is reduced in size to obtain the first reflection curve; The obtained reflection curve is magnified to obtain the second reflection curve; A plane is drawn connecting the first reflection curve and the second reflection curve to obtain a cross-section. The cross-section consists of several line segments connecting corresponding points of the first reflection curve and the second reflection line, and the line segments connecting corresponding points of the first reflection curve and the second reflection line pass through the driver's eye point. Measure the distance from the cut surface to the left side rearview mirror housing. If the distance is greater than the preset value, it means that the left field of view meets the requirements of the left human-machine field of view. It also includes a method for verifying the right visual field: Acquire data for the right-side exterior rearview mirror area; Extract the outline of the right-side exterior rearview mirror lens; The outline of the extracted right-side exterior rearview mirror lens is reduced in size; A curved surface is constructed connecting the outline of the right-side rearview mirror lens and the reduced outline of the right-side rearview mirror lens to obtain a field of view. The field of view consists of several line segments connecting the corresponding points of the outline of the right-side rearview mirror lens and the reduced outline of the right-side rearview mirror lens, and the line segments connecting the corresponding points of the outline of the right-side rearview mirror lens and the reduced outline of the right-side rearview mirror lens pass through the driver's eye point. Measure the distances between the field of view and the A-pillar and the outer strip of the right-side glass, respectively. If the distances between the field of view and the A-pillar, and between the field of view and the outer strip of the right-side glass, are both greater than the preset values, it means that the right-side field of view meets the requirements of the left-side human-machine field of view.

2. A method for verifying vehicle visibility according to claim 1, characterized in that, Verification was performed using CATIA software: Modeling is performed based on the acquired data of the left exterior rearview mirror area; Extract the curved surface of the left door frame area using multiple extraction commands; The driver's eye point and the curved surface of the left door frame are selected using the reflection line command to generate a reflection curve; Obtain the first and second reflection curves using the scaling command; The first and second reflection curves are connected by bridging commands to generate a cross-section.

3. A method for verifying vehicle visibility according to claim 1, characterized in that, The data for the left-side exterior rearview mirror area includes the position, shape, and size of the left-side exterior rearview mirror lens, left-side exterior rearview mirror housing, left-side door trim groove, left-side door frame strip, left-side glass outer strip, left-side door sealing strip, left-side front door interior panel, and left-side A-pillar interior panel.

4. A method for verifying vehicle visibility according to claim 1, characterized in that, The ratio of the first reflection curve to the reflection curve is y1, where y1 ∈ (0, 0.5).

5. A method for verifying vehicle visibility according to claim 1, characterized in that, The ratio of the second reflection curve to the reflection curve is y2, where y2 ∈ (1, 1.5).

6. A method for verifying vehicle visibility according to claim 1, characterized in that, The driver's eye point is the midpoint of the line connecting the centers of the ellipses of the driver's left and right eyes.

7. A method for verifying vehicle visibility according to claim 1, characterized in that, Verification was performed using CATIA software: Modeling was performed based on data from the right-side exterior rearview mirror area; Extract the outline of the right-side exterior rearview mirror lens using the boundary command; The outline of the extracted right-side exterior rearview mirror lens is reduced by using the zoom command; The bridging command connects the outline of the right-side rearview mirror lens with the reduced outline of the right-side rearview mirror lens to generate a field of view.

8. A method for verifying vehicle visibility according to claim 1, characterized in that, The data for the right-side exterior rearview mirror area includes the position, shape, and size of the right-side exterior rearview mirror lens, the right-side exterior rearview mirror housing, the right-side door trim groove, the right-side door frame strip, the right-side glass outer strip, the right-side door sealing strip, the right front door interior panel, and the right A-pillar interior panel.

9. A method for verifying vehicle visibility according to claim 1, characterized in that, The ratio of the outline of the reduced right-side rearview mirror lens to the outline of the original right-side rearview mirror lens is y3, where y3∈(0,0.5).

Images