A method and tool for verifying indirect vision of automobile

Abstract

The present invention belongs to the field of automotive design verification technology and provides a method and tool for verifying an indirect field of view of an automobile. The method includes: setting a target range for the indirect field of view of the automobile; selecting benchmarks in the X, Y, and Z directions based on the target range; positioning a light source for simulating the field of view based on the selected benchmarks, including: adjusting the position of the light source in the X-axis direction based on a first benchmark; adjusting the position of the light source in the Y-axis direction based on a second benchmark; and adjusting the position of the light source in the Z-axis direction based on a third benchmark; and verifying whether the field of view of the interior rearview mirror meets the target range of the indirect field of view of the automobile using the positioned light source. If the target range is met, the verification passes; otherwise, the verification fails. The verification method of the present invention sets benchmarks in the X, Y, and Z directions and positions the light source based on the benchmarks, effectively simulating the indirect field of view observed through the rearview mirror from inside the automobile, and can effectively verify whether the indirect field of view of the automobile meets the requirements.

Description

Technical Field

[0001] The present invention belongs to the technical field of automobile design verification, and in particular relates to an automobile indirect field of view verification method and tool. Background Art

[0002] Indirect vision refers to the traffic areas around the vehicle that are beyond the driver's direct line of sight, as observed through rearview mirrors, down-view mirrors, or other auxiliary devices. These areas typically include the rear, sides, and even part of the front of the vehicle. While driving, the driver relies heavily on visual perception, making comprehensive and accurate understanding of traffic conditions around the vehicle crucial for driving safety. Expanding indirect vision not only enhances the driver's perception but also improves their ability to navigate complex traffic environments. For example, when changing lanes or overtaking, the indirect vision provided by rearview and down-view mirrors can help drivers assess traffic conditions behind and to the sides, thereby avoiding potential dangers.

[0003] Currently, there are two methods for verifying indirect automotive field of view: the outdoor field method and the indoor equivalent verification method. Taking the indirect field of view verification of the interior rearview mirror as an example, if the outdoor field method is used, it needs to be conducted in an open field to simulate the field of view in an actual driving environment. However, finding a suitable outdoor field can be difficult because certain field size and field of view requirements must be met. In addition, natural factors such as weather and light may also affect the verification results. If the indoor equivalent method is used, by using equipment such as dummies to simulate the driver's field of view, although some interference from natural factors in the outdoor field method can be avoided, special equipment such as dummies is required, and there may be large errors in the placement of the dummies and the adjustment of the seats to the designed position. These errors may cause the adjustment of the interior rearview mirror to fail to meet regulatory requirements, especially when the design margin is insufficient. Summary of the Invention

[0004] In order to solve at least one problem in the background technology, the present invention provides a method and tool for verifying indirect field of view of an automobile.

[0005] In order to achieve the above object, the present invention adopts the following technical solutions:

[0006] A method for verifying indirect vision of an automobile comprises the following steps:

[0007] Set the target range of the car's indirect field of view;

[0008] Select the X-axis, Y-axis and Z-axis directions based on the target range;

[0009] Positioning a light source for simulating a field of view based on the selected references includes: adjusting a position of the light source in an X-axis direction based on a first reference; adjusting a position of the light source in a Y-axis direction based on a second reference; and adjusting a position of the light source in a Z-axis direction based on a third reference;

[0010] The positioned light source is used to verify whether the rearview mirror field of view meets the target range of the vehicle's indirect field of view. If it meets the target range, the verification is passed, otherwise the verification fails.

[0011] Preferably, the target range of the indirect field of view of the vehicle includes: an area with a width of ≥2.67 m and an area with a height of ≥1.25 m behind the light source where the reflected light of the light source is observed.

[0012] Preferably, selecting the references in the X-axis, Y-axis and Z-axis directions based on the target range includes the following steps:

[0013] The front end of the car sunroof is selected as the reference in the X-axis direction;

[0014] Select the center line of the car seat cushion as the reference in the Y-axis direction;

[0015] The height of the car sunroof is selected as the reference in the Z-axis direction.

[0016] An automobile indirect vision verification tool, used in the above-mentioned automobile indirect vision verification method, comprising: a first ruler, a light bulb, a movable ruler, a movable base, and a second ruler;

[0017] The light bulb is mounted on the surface of the movable ruler; the second ruler is slidably mounted on the movable ruler for adjusting the position of the light bulb along the X-axis direction; the first ruler is slidably mounted on the movable base for adjusting the position of the light bulb along the Z-axis direction; the movable base is stationary relative to the first ruler, the movable ruler, and the second ruler, and is fixedly arranged along the Y-axis direction.

[0018] Preferably, the movable ruler is T-shaped, comprising an integrated base section and a ruler section, wherein the ruler section is arranged perpendicular to the base section;

[0019] The base section is slidably mounted on the first straight ruler.

[0020] Preferably, the light bulb is mounted on the surface of the base section of the movable ruler.

[0021] Preferably, a first bolt is further provided between the ruler segment and the first ruler, and the first bolt is used to fix the base segment that slides to the target position on the first ruler.

[0022] Preferably, a battery box is also installed on the surface of the base segment, and the battery box is used to supply power to the light bulb.

[0023] Preferably, a second bolt is further provided between the first ruler and the movable seat, and the second bolt is used to fix the first ruler that slides to the target position on the movable seat.

[0024] Preferably, two bulbs are provided and symmetrically mounted on the surface of the base segment.

[0025] Beneficial effects of the present invention:

[0026] 1. The verification method of the present invention sets references in the X-axis, Y-axis, and Z-axis directions, and locates the position of the light source based on these three references, effectively simulating the indirect field of view observed through the rearview mirror inside the car, and can effectively verify whether the indirect field of view of the car meets the requirements;

[0027] 2. The verification tool of the present invention is designed based on the verification method. It is designed based on the X-axis, Y-axis and Z-axis references to a movable first ruler, a second ruler, a movable ruler, a movable seat and a light bulb installed on the movable ruler. When performing verification, the position of the light bulb can be located through the above structure, and the light bulb can be used as a light source, thereby meeting the tool requirements of the verification method.

[0028] Other features and advantages of the present invention will be described in the following description, and in part will become apparent from the description, or will be understood by practicing the present invention. The purpose and other advantages of the present invention can be realized and obtained by the structures pointed out in the description and the drawings. BRIEF DESCRIPTION OF THE DRAWINGS

[0029] In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the following is a brief introduction to the drawings required for use in the embodiments or the description of the prior art. Obviously, the drawings described below are some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying any creative work.

[0030] Figure 1 A flow chart of a method for verifying indirect vision of an automobile according to the present invention is shown;

[0031] Figure 2 Shows a schematic structural diagram of the ceiling of the present invention;

[0032] Figure 3 A front structural diagram of an automobile indirect vision verification tool of the present invention is shown;

[0033] Figure 4 A structural diagram showing the back side of a vehicle indirect vision verification tool of the present invention is shown;

[0034] Figure 5 A schematic diagram of the connection between the first straight ruler and the bolts of the present invention is shown.

[0035] In the figure: 1. first ruler; 101. waist-shaped groove; 2. light bulb; 3. movable ruler; 301. base section; 302. ruler section; 4. movable seat; 5. second ruler; 6. battery box; 7. first bolt; 8. second bolt; 9. ceiling. DETAILED DESCRIPTION

[0036] To make the objectives, technical solutions, and advantages of the embodiments of the present invention more clear, the technical solutions in the embodiments of the present invention will be clearly and completely described below in conjunction with the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts shall fall within the scope of protection of the present invention.

[0037] A method for verifying indirect vision of a car, such as Figure 1 As shown, the following steps are included:

[0038] S1: Set the target range of the car's indirect field of view; S2: Select the benchmarks in the X-axis, Y-axis and Z-axis directions based on the target range; S3: Position the light source for simulating the field of view based on the selected benchmarks, including: adjusting the position of the light source in the X-axis direction based on the first benchmark; adjusting the position of the light source in the Y-axis direction based on the second benchmark; adjusting the position of the light source in the Z-axis direction based on the third benchmark; S4: Verify whether the rearview mirror field of view meets the target range of the car's indirect field of view through the positioned light source. If it meets the target range, the verification is passed, otherwise the verification fails.

[0039] It should be noted that the above-mentioned field of view verification method can be carried out indoors, and the light source can be equivalently converted by measuring the illumination area on the curtain indoors to verify whether the field of view area is met. For example, it is required that the rearview mirror can see an area 60m away and 20m wide behind the eye point (light source). Then, taking 8m behind the eye point as an example, according to the geometric proportion relationship, it is necessary to see an area at a height of 1.25m ((52÷60)x1.44) and a width of 2.67m ((8÷60)x20). If the above-mentioned eye point light sources can be seen at both ends of the 2.67m width area, the field of view requirement is met. At this time, the target range of the car's indirect field of view is to observe the reflected light of the light source in an area with a width of ≥2.67m and a height of ≥1.25m behind the light source. Therefore, the focus of steps S1-S4 is the positioning of the eye point (light source) on the actual vehicle.

[0040] Furthermore, in S2, the benchmark can be selected according to the needs of verification. In some embodiments, Figure 2 In some embodiments, the ceiling 9 is used as a reference standard. Figure 2The roof 9 in the figure is used as a reference standard, which is a practical and effective method. Figure 2 The middle A position provides a clear starting point for positioning. At the same time, combined with the car bottom seat cushion at the lower end of the roof 9, the accuracy and stability during installation can be guaranteed.

[0041] In this process, it is crucial to select the three datums in the X-axis, Y-axis, and Z-axis directions. The selection of these datums will directly affect the accuracy of subsequent installation and positioning. Specifically:

[0042] In step S201, the front end of the vehicle's sunroof is selected as the X-axis reference. This is based on the fact that the front end of the sunroof is relatively stable and easy to identify and locate. Setting the X-axis reference here ensures that subsequent installation and positioning work proceed in the correct direction.

[0043] In step S202, the centerline of the car seat cushion is selected as the Y-axis reference. The seat cushion centerline is a distinct reference point that runs across the width of the car and maintains a stable relative position. Using it as the Y-axis reference helps ensure lateral balance and symmetry during installation.

[0044] In step S203, the height of the car's sunroof is selected as the Z-axis reference. This is based on the fact that the sunroof height is fixed and easy to measure. Setting the Z-axis reference at the sunroof height ensures height accuracy and verticality during installation.

[0045] It should be noted that selecting the X-axis, Y-axis, and Z-axis references in steps S201 to S203 ensures accuracy and stability during installation, which not only helps improve installation efficiency but also reduces installation errors and unnecessary adjustments.

[0046] Furthermore, in S3, after the benchmark selection is completed, corresponding tools can be designed to implement the adjustment process. Such tools are crucial for the verification of the indirect field of view of the car. When designing such a tool, full consideration must be given to how to accurately adjust the position of the light source based on the benchmarks of the X-axis, Y-axis, and Z-axis. First of all, we need to clarify the concept of indirect field of view. Indirect field of view refers to the areas around the vehicle that the driver observes through the reflectors, cameras, and other display devices inside the car that are not directly visible. In order to ensure the safety of the driver, these indirect fields of view must be clear and accurate. Figure 3 This paper introduces a verification tool for indirect field of view of automobiles.

[0047] Furthermore, in S4, if the verification passes, it means that the position of the rearview mirror is reasonable; if it fails, it means that the position of the rearview mirror does not meet the requirements and needs to be readjusted.

[0048] A vehicle indirect field of view verification tool, used for the above-mentioned vehicle indirect field of view verification method, its structure is as follows Figure 3 As shown, it includes: a first ruler 1, a light bulb 2, a movable ruler 3, a movable base 4 and a second ruler 5; the light bulb 2 is mounted on the surface of the movable ruler 3; the second ruler 5 is slidably mounted on the movable ruler 3 and is used to adjust the position of the light bulb 2 along the X-axis direction; the first ruler 1 is slidably mounted on the movable base 4 and is used to adjust the position of the light bulb 2 along the Z-axis direction; the movable base 4 is stationary relative to the first ruler 1, movable ruler 3 and second ruler 5, and is fixedly arranged along the Y-axis direction.

[0049] Furthermore, if Figure 4 As shown, the movable ruler 3 is T-shaped and comprises an integrated base section 301 and a ruler section 302. The ruler section 302 is arranged perpendicular to the base section 301 and slidably mounted on the first ruler 1. The light bulb 2 is mounted on the surface of the base section 301 of the movable ruler 3. Furthermore, a first bolt 7 is provided between the ruler section 302 and the first ruler 1 to secure the base section 301 to the first ruler 1 after it has slid to its target position. Furthermore, a battery compartment 6 is mounted on the surface of the base section 301 to power the light bulb 2.

[0050] It should be noted that there are two bulbs 2 provided and symmetrically mounted on the surface of the base segment 301 , and the distance between the two bulbs 2 can be selected to be 65 mm.

[0051] Furthermore, a second bolt 8 is provided between the first ruler 1 and the movable seat 4 , and the second bolt 8 is used to fix the first ruler 1 that has slid to the target position on the movable seat 4 .

[0052] It should be noted that in order to improve the application range of the first straight ruler 1, it is possible to use Figure 5 Specifically, a waist-shaped groove 101 can be provided in the center of the first straight ruler 1, through which the first and second bolts 7 and 8 can be inserted for tightening. Furthermore, the nut of the first bolt 7 can be integrally formed with the base section 301, while the nut of the second bolt 8 can be integrally formed with the movable seat 4. During tightening, the first and second bolts 7 and 8 can be rotated so that the flange surfaces contact the surface of the first straight ruler 1, thereby locking the base section 301 and the first straight ruler 1 together through friction.

[0053] The following verification method is for Figure 3 The tool usage is explained in the following scenarios. Figure 2 The roof 9 and the car bottom seat cushion at the lower end of the roof 9 are formed, and the specific process is as follows:

[0054] Positioning in the X-axis direction

[0055] Move the movable ruler 3 to the ceiling 9, using the front end of the skylight ceiling 9 opening as the X-axis reference. Then move the second ruler 5 until it touches the front end of the skylight. Then read the value of ruler segment 302 to obtain the position of the bulb 2 from the front end of the skylight. If the position of the bulb 2 does not meet the requirements, move the tool along the X-axis until the bulb 2 moves to the target position.

[0056] Positioning in the Y-axis direction

[0057] There is a positioning mark in the middle of the movable seat 4, which is aligned with the center line of the bottom seat cushion of the car to achieve Y-direction positioning of the bottom of the car indirect field of view verification tool, thereby achieving Y-direction positioning of the left and right eye points.

[0058] Perform Z-axis positioning

[0059] The movable ruler 3 can move up and down on the first ruler 1. There is a scale on the first ruler 1. The upper end of the ruler touches the ceiling 9. The movable ruler 3 is directly adjusted and locked by the first bolt 7 on the movable ruler 3, thereby realizing the Z-direction positioning of the eye point; similarly, the movable seat 4 moves up and down along the first ruler 1, and the lower end touches the seat cushion. The upper end of the first ruler 1 touches the ceiling 9, and the second bolt 8 on the movable seat 4 is locked, which can realize the fixation of the vehicle indirect field of view verification tool.

[0060] Although the present invention has been described in detail with reference to the aforementioned embodiments, those skilled in the art should understand that they can still modify the technical solutions described in the aforementioned embodiments, or make equivalent replacements for some of the technical features therein; and these modifications or replacements do not cause the essence of the corresponding technical solutions to deviate from the spirit and scope of the technical solutions of the embodiments of the present invention.

Claims

1. A method for verifying indirect vision of an automobile, characterized in that: The following steps are involved: Set the target range of the car's indirect field of view; Select the X-axis, Y-axis and Z-axis directions based on the target range; Positioning a light source for simulating a field of view based on the selected references includes: adjusting a position of the light source in an X-axis direction based on a first reference; adjusting a position of the light source in a Y-axis direction based on a second reference; and adjusting a position of the light source in a Z-axis direction based on a third reference; The positioned light source is used to verify whether the rearview mirror field of view meets the target range of the vehicle's indirect field of view. If it meets the target range, the verification is passed, otherwise the verification fails.

2. A method for verifying indirect vision of a vehicle according to claim 1, characterized in that: The target range of the indirect field of view of the automobile includes: observing the reflected light of the light source in an area with a width of ≥2.67m and a height of ≥1.25m behind the light source.

3. The method for verifying indirect vision of an automobile according to claim 2, characterized in that: Based on the target range, select the benchmarks in the X-axis, Y-axis and Z-axis directions respectively, including the following steps: The front end of the car sunroof is selected as the reference in the X-axis direction; Select the center line of the car seat cushion as the reference in the Y-axis direction; The height of the car sunroof is selected as the reference in the Z-axis direction.

4. A vehicle indirect field of view verification tool, used in a vehicle indirect field of view verification method according to any one of claims 1 to 3, characterized in that: include: A first straight ruler (1), a light bulb (2), a movable ruler (3), a movable base (4) and a second straight ruler (5); The light bulb (2) is mounted on the surface of a movable ruler (3); the second ruler (5) is slidably mounted on the movable ruler (3) and is used to adjust the position of the light bulb (2) along the X-axis direction; the first ruler (1) is slidably mounted on a movable seat (4) and is used to adjust the position of the light bulb (2) along the Z-axis direction; the movable seat (4) is stationary relative to the first ruler (1), the movable ruler (3) and the second ruler (5), and is fixedly arranged along the Y-axis direction.

5. The vehicle indirect vision verification tool according to claim 4, characterized in that: The movable ruler (3) is T-shaped and comprises an integrated base section (301) and a ruler section (302), wherein the ruler section (302) is arranged perpendicular to the base section (301); The base section (301) is slidably mounted on the first ruler (1).

6. The vehicle indirect vision verification tool according to claim 5, characterized in that: The light bulb (2) is mounted on the surface of the base section (301) of the movable ruler (3).

7. The vehicle indirect vision verification tool according to claim 5, characterized in that: A first bolt (7) is further provided between the ruler segment (302) and the first ruler (1), and the first bolt (7) is used to fix the base segment (301) that slides to a target position on the first ruler (1).

8. The vehicle indirect vision verification tool according to any one of claims 5 to 7, characterized in that: A battery box (6) is also mounted on the surface of the base section (301), and the battery box (6) is used to supply power to the light bulb (2).

9. The vehicle indirect vision verification tool according to claim 4, characterized in that: A second bolt (8) is further provided between the first ruler (1) and the movable seat (4), and the second bolt (8) is used to fix the first ruler (1) that has slid to a target position on the movable seat (4).

10. The vehicle indirect vision verification tool according to claim 5, characterized in that: Two light bulbs (2) are provided and symmetrically mounted on the surface of the base section (301).

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