A-pillar obstacle angle detection device and method

Abstract

The application discloses an A-column obstacle angle detection device and method, which comprises a fixing support, a P-point passing support, an A-column measuring support and a front wheel positioning support; the fixing support comprises a horizontal rod and a vertical rod which are connected vertically, and the horizontal rod is horizontally placed on the ground; the front wheel positioning support is arranged on the horizontal rod and is aligned with the front wheel center of a vehicle; the P-point passing support is slidably connected to the vertical rod and is used for simulating a first plane which is inclined upward by 2 degrees at a P-point and a second plane which is inclined downward by 5 degrees at the P-point; the A-column measuring support is slidably connected to the vertical rod and is located above the P-point passing support and is used for measuring the obstacle angle of the A-column. The application saves analysis cost and time, has low cost, is convenient to maintain and has high practicability. The related point coordinates can be adjusted and determined, and the detection mode of a numerical model section is replaced by light illumination in different space positions.

Description

Technical Field

[0001] This invention relates to the field of automotive A-pillar obstruction angle detection technology, and more specifically, to an A-pillar obstruction angle detection device and method. Background Technology

[0002] The A-pillar obstruction angle affects the driver's visibility, and if the driver cannot notice lateral road conditions in time, it can easily lead to a safety accident. However, the A-pillar not only needs to support the car roof, serve as the pillar for the front doors, and install the windshield, but it also needs to withstand the impact of a collision. The A-pillar also needs to maintain a certain degree of rigidity. The A-pillar obstruction angle is unavoidable, so the design verification of the A-pillar obstruction angle is crucial.

[0003] Measuring the A-pillar obstruction angle is a necessary task for automakers. However, during the automotive R&D process, the verification of the A-pillar obstruction angle currently relies solely on digital model analysis or reverse engineering of the vehicle body, a complex and time-consuming process. Since there are mandatory national regulations governing A-pillar obstruction angle measurement, improving the ease of measurement has become a top priority.

[0004] Therefore, how to provide a device and method for conveniently and quickly detecting the A-pillar obstruction angle of a vehicle has become a technical problem that urgently needs to be solved in this field. Summary of the Invention

[0005] The purpose of this invention is to provide an A-pillar obstruction angle detection device and method, which can conveniently and quickly detect the A-pillar obstruction angle of a vehicle.

[0006] According to one aspect of the present invention, an A-pillar obstacle angle detection device is provided, comprising a fixed bracket, a point P-pass bracket, an A-pillar measuring bracket, and a front wheel alignment bracket;

[0007] The fixed bracket includes a horizontal bar and a vertical bar connected vertically, and the horizontal bar is placed horizontally on the ground; the front wheel positioning bracket is set on the horizontal bar and aligned with the center of the front wheel of the vehicle.

[0008] The support at point P is slidably connected to the vertical rod, and it is used to simulate a first plane that is inclined upward at 2 degrees at point P and a second plane that is inclined downward at 5 degrees at point P.

[0009] The A-pillar measuring bracket is slidably connected to the vertical rod and located above the P-point support bracket. It is used to measure the obstacle angle of the A-pillar.

[0010] Optionally, according to the A-pillar obstacle angle detection device of the present invention, the P-point support includes a positioning rod, an upper plane rod, and a lower plane rod, wherein the upper plane rod and the lower plane rod are both L-shaped rods that are perpendicular to each other, and one end of both is connected to the positioning rod;

[0011] The upper plane rod is inclined upward at 2 degrees from the connection point with the positioning rod, and the lower plane rod is inclined downward at 5 degrees from the connection point with the positioning rod.

[0012] The bending point, the end point of the upper plane rod, and the end point of the positioning rod are all provided with a first light source, and the first light source is located in the first plane;

[0013] A second light source is provided at the bending point and end point of the lower plane rod, as well as at the end point of the positioning rod. The second light source is located within the second plane.

[0014] Optionally, according to the A-pillar obstacle angle detection device of the present invention, a third illuminator is further provided at the position near the end of the upper plane rod, the light surface of the third illuminator forming a first horizontal plane, and the first horizontal plane intersecting with the first plane.

[0015] Optionally, according to the A-pillar obstacle angle detection device of the present invention, a fourth light source is further provided on the vertical rod and the lower plane rod, the light surface of the fourth light source forming a second horizontal plane, and the second horizontal plane intersecting with the second plane.

[0016] Optionally, according to the A-pillar obstacle angle detection device of the present invention, at least one connecting rod is further provided between the upper plane rod and the lower plane rod at the bent edge away from the vertical rod.

[0017] Optionally, according to the A-pillar obstacle angle detection device of the present invention, the A-pillar measuring bracket includes a measuring rod, a reference rod, and a rotating rod. One end of the measuring rod is slidably connected to the vertical rod, and the other end is connected to the reference rod. The reference rod can rotate and slide horizontally along the connection point between the two. The rotating rod is connected to the reference rod, and the rotating rod can rotate horizontally along the connection point between the two.

[0018] A horizontally positioned laser rod is slidably connected to the reference rod. Both the laser rod and the rotating rod are equipped with laser emitters that emit lasers downwards. The rotating rod is also equipped with an arc-shaped angle reader, which is used to read the obstacle angle of the A-pillar.

[0019] Optionally, according to the A-pillar obstacle angle detection device of the present invention, the front wheel positioning bracket further includes a front wheel center rod and a laser positioner. The front wheel center rod is vertically connected to the crossbar and parallel to the vertical rod. The laser positioner is disposed on the front wheel center rod and is used to correspond to the front wheel center of the vehicle body.

[0020] According to a second aspect of the present invention, a method for detecting the A-pillar obstruction angle is also provided, using the A-pillar obstruction angle detection device described in the above embodiments and the following steps:

[0021] (1) Park the vehicle, lower the window, place the measuring device on one side of the vehicle, adjust the front wheel alignment bracket to the front and rear positions, and adjust the laser locator up and down to align it with the center of the front wheel; obtain the coordinates of point P;

[0022] (2) Adjust the front and rear position of the vertical rod on the horizontal rod, adjust the up and down position of the bracket passing through point P, and adjust the left and right position of the light fixture mounting bracket on the positioning rod.

[0023] (3) Install a total of six illuminators, including the first illuminator and the second illuminator, to form a first plane and a second plane on the vehicle. Find the points where the first plane and the second plane intersect with the vehicle body respectively, and take the foremost point of the two intersecting lines.

[0024] (4) Adjust the height of the measuring rod on the vertical rod, and adjust the left and right positions of the reference rod on the measuring rod;

[0025] (5) Turn off the first and second illuminators in step (3), install the third illuminator to form a total of one illuminator, form a horizontal first horizontal plane on the vehicle, adjust the first horizontal plane downward to the position of the foremost point of the first plane, and find the projection of the innermost point of the first horizontal plane on the A-pillar of the vehicle body.

[0026] (6) Turn off the third light source in step (5), install the fourth light source, and a total of two light sources to form a horizontal second horizontal plane on the vehicle. Adjust the second horizontal plane upward to the position at the foremost point of the second plane, and find the projection of the outermost point of the second horizontal plane on the A-pillar of the vehicle body.

[0027] (7) Adjust the laser emitter on the reference rod so that the laser irradiates the innermost point in step (5); adjust the laser emitter on the rotating rod so that the laser irradiates the outermost point in step (6);

[0028] (8) Read the angle value on the angle reader, which is the A-pillar obstacle angle of the vehicle body.

[0029] This invention provides a device for measuring the A-pillar obstruction angle of a vehicle on a physical object. Utilizing the projections of a first plane and a second plane onto the vehicle body, the foremost point of the intersection line between the two points can be quickly found and marked. Then, the first horizontal plane intersects with the upper foremost point, and its sectional projection is projected onto the A-pillar of the vehicle body, thus quickly finding the innermost point (the intersection of the black edge of the glass and the sectional projection). Similarly, the second horizontal plane intersects with the lower foremost point, and its sectional projection is projected onto the A-pillar of the vehicle body, thus quickly finding the outermost point. Finally, the laser emitters on the reference rod and rotating rod are respectively aligned with the innermost and outermost points, and the angle value on the angle reader is the A-pillar obstruction angle of the vehicle body. This device saves analysis costs and time, is low-cost, easy to maintain, and highly practical. It allows for adjustable determination of relevant point coordinates, using illumination from different spatial positions to replace the detection method of digital cross-sections.

[0030] Other features and advantages of the invention will become clear from the following detailed description of exemplary embodiments of the invention with reference to the accompanying drawings. Attached Figure Description

[0031] The accompanying drawings, which are incorporated in and form part of this specification, illustrate embodiments of the invention and, together with their description, serve to explain the principles of the invention.

[0032] Figure 1 This is a schematic diagram of the A-pillar obstacle angle detection device disclosed in this invention;

[0033] Figure 2 This is a schematic diagram of the structure of the support structure passing through point P disclosed in this invention;

[0034] Figure 3 This is a schematic diagram of the A-pillar measuring bracket disclosed in this invention;

[0035] Figure 4 for Figure 3 A magnified view of a specific part of the image;

[0036] Figure 5 This is a schematic diagram of the use of the A-pillar obstacle angle detection device disclosed in this invention.

[0037] Explanation of reference numerals in the attached diagram: 11-Horizontal bar; 12-Vertical bar; 2-Bracket passing through point P; 21-Positioning rod; 22-Upper plane rod; 23-Lower plane rod; 24-First light source; 25-Second light source; 26-Third light source; 27-Fourth light source; 28-Connecting rod; 29-Light source mounting bracket; 3-A-pillar measuring bracket; 31-Measuring rod; 32-Reference rod; 33-Rotating rod; 34-Angle reader; 35-Laser rod; 36-Laser emitter; 41-Front wheel center rod; 42-Laser positioner. Detailed Implementation

[0038] Various exemplary embodiments of the present invention will now be described in detail with reference to the accompanying drawings. It should be noted that, unless otherwise specifically stated, the relative arrangement, numerical expressions, and values ​​of the components and steps set forth in these embodiments do not limit the scope of the invention.

[0039] The following description of at least one exemplary embodiment is merely illustrative and is in no way intended to limit the invention or its application or use.

[0040] Techniques, methods, and equipment known to those skilled in the art may not be discussed in detail, but where appropriate, such techniques, methods, and equipment should be considered part of the specification.

[0041] In all the examples shown and discussed herein, any specific values ​​should be interpreted as merely exemplary and not as limitations. Therefore, other examples of exemplary embodiments may have different values.

[0042] It should be noted that similar labels and letters in the following figures indicate similar items; therefore, once an item is defined in one figure, it does not need to be discussed further in subsequent figures.

[0043] according to Figures 1 to 4 As shown, the present invention provides an A-pillar obstacle angle detection device, including a fixed bracket, a P-point passing bracket 2, an A-pillar measuring bracket 3, and a front wheel positioning bracket.

[0044] The fixed bracket includes a horizontal bar 11 and a vertical bar 12 connected vertically, with the horizontal bar 11 placed horizontally on the ground; the front wheel alignment bracket is set on the horizontal bar 11 and aligned with the center of the front wheel of the vehicle.

[0045] The bracket 2 passing through point P is slidably connected to the vertical rod 12, which is used to simulate a first plane that is inclined upward by 2 degrees and a second plane that is inclined downward by 5 degrees passing through point P.

[0046] The A-pillar measuring bracket 3 is slidably connected to the vertical rod 12 and is located above the bracket 2 passing through point P. It is used to measure the obstacle angle of the A-pillar.

[0047] In this embodiment, by utilizing the projections of the first and second planes onto the vehicle body, the foremost point of the intersection line between the two points can be quickly found and marked. Then, by intersecting the upper foremost point with the first horizontal plane, its sectional projection is placed on the A-pillar of the vehicle body, thus quickly finding the innermost point (the intersection of the black edge of the glass and the sectional projection). Similarly, by intersecting the lower foremost point with the second horizontal plane, its sectional projection is placed on the A-pillar of the vehicle body, thus quickly finding the outermost point. Finally, the A-pillar obstruction angle of the vehicle body is measured using the A-pillar measuring bracket 3. This adjustable method of determining the coordinates of relevant points replaces the detection method of digital cross-sections with illumination from different spatial positions. Both the P-point bracket 2 and the A-pillar measuring bracket 3 can slide up and down along the vertical rod 12 to facilitate adjustment according to different vehicle heights.

[0048] Furthermore, the support 2 at point P includes a positioning rod 21, an upper plane rod 22, and a lower plane rod 23. The upper plane rod 22 and the lower plane rod 23 are both L-shaped rods that are perpendicular to each other, and one end of each is connected to the positioning rod 21. The upper plane rod 22 is inclined upward at 2 degrees from the connection point with the positioning rod 21, and the lower plane rod 23 is inclined downward at 5 degrees from the connection point with the positioning rod 21. A first light source 24 is provided at the bending point and end point of the upper plane rod 22 and at the end point of the positioning rod 21. The first light source 24 is located in the first plane. A second light source 25 is provided at the bending point and end point of the lower plane rod 23 and at the end point of the positioning rod 21. The second light source 25 is located in the second plane. The first light emitter 24 forms a first plane tilted upwards at 2 degrees, and the second light emitter 25 forms a second plane tilted downwards at 5 degrees. The first and second planes each have an inclined sectional projection with the A-pillar of the car. The foremost point of these two sectional projections (the side of the A-pillar closest to the hood) is identified and marked. Furthermore, during installation, a first light emitter 24 and a second light emitter 25 are mounted on the positioning rod 21. For ease of adjustment, a slidingly connected light emitter mounting bracket 29 is provided on the positioning rod 21 to allow for overall adjustment of the positions of the first light emitter 24 and the second light emitter 25 on the positioning rod 21.

[0049] Furthermore, a third light source 26 is provided near the end of the upper plane rod 22. The light surface of the third light source 26 forms a first horizontal plane, which intersects with the first plane. The first horizontal plane is used to find the innermost point of the A-pillar. The first horizontal plane is adjusted downwards to the position of the foremost point of the first plane. At this time, there is a horizontal sectional projection between the first horizontal plane and the A-pillar of the car. Extending along this sectional projection towards the inside of the A-pillar, the innermost point projection of the first horizontal plane on the A-pillar of the car body is found (the intersection of the black edge of the glass and the sectional projection).

[0050] Furthermore, a fourth light source 27 is also provided on the vertical rod 12 and the lower plane rod 23. The light surface of the fourth light source 27 forms a second horizontal plane, and the second horizontal plane intersects with the second plane. Similar to the principle of finding the innermost point, the second horizontal plane is used to find the outermost point of the A-pillar. The second horizontal plane is adjusted downwards to the position of the foremost point of the second plane. At this time, there is a horizontal sectional projection between the second horizontal plane and the A-pillar of the car. Extending along this sectional projection towards the outside of the A-pillar, the outermost point projection of the second horizontal plane on the A-pillar of the car body is found. This point is the outermost point of the A-pillar.

[0051] Furthermore, at least one connecting rod 28 is provided between the bent edges of the upper plane rod 22 and the lower plane rod 23 away from the vertical rod 12. Since the upper plane rod 22 is inclined upward by 2 degrees and the lower plane rod 23 is inclined downward by 5 degrees, there is a fixed angle value of 7 degrees between them. In order to ensure the multiple use of the P-point support 2 of the present invention, the two are fixedly connected by at least one connecting rod 28, thereby ensuring that the angle value between them is 7 degrees.

[0052] Furthermore, the A-pillar measuring bracket 3 includes a measuring rod 31, a reference rod 32, and a rotating rod 33. One end of the measuring rod 31 is slidably connected to the vertical rod 12, and the other end is connected to the reference rod 32. The reference rod 32 can rotate and slide horizontally along the connection point between the two. The rotating rod 33 is connected to the reference rod 32, and the rotating rod 33 can rotate horizontally along the connection point between the two. In implementation, the reference rod 32 and the rotating rod 33 are an integral rotating structure, and the reference rod 32 can slide and rotate horizontally along the measuring rod 31 to improve the applicability of the invention and meet the detection requirements of the A-pillar obstruction angle for different vehicle models.

[0053] A horizontally positioned laser rod 35 is slidably connected to the reference rod 32. Both the laser rod 35 and the rotating rod 33 are equipped with laser emitters 36 that emit downward-facing lasers. The rotating rod 33 is also equipped with an arc-shaped angle reader 34, which is used to read the obstacle angle of the A-pillar. In this embodiment, the laser emitter 36 is vertically aligned with the innermost and outermost points on the A-pillar. At this time, the rotating rod 33 needs to rotate a certain angle relative to the reference rod 32. The angle reader 34 of this invention is an arc-shaped caliper with angle scale lines on its top. The angle at which the reference rod 32 rotates relative to the rotating rod 33 can be quickly read on the angle reader 34, and this value becomes the obstacle angle of the car's A-pillar.

[0054] Furthermore, the front wheel alignment bracket includes a front wheel center rod 41 and a laser locator 42. The front wheel center rod 41 is vertically connected to the crossbar 11 and is parallel to the vertical bar 12. The laser locator 42 is mounted on the front wheel center rod 41 and is used to correspond to the front wheel center of the vehicle body.

[0055] Then according to Figure 5As shown, the present invention also provides a method for detecting the A-pillar obstacle angle, using the A-pillar obstacle angle detection device in the above embodiments and the following steps:

[0056] (1) Park the vehicle, lower the window, place the measuring device on one side of the vehicle, adjust the front wheel alignment bracket to the front and rear positions, and adjust the laser locator 42 up and down to align it with the center of the front wheel; obtain the coordinates of point P.

[0057] (2) Adjust the front and rear position of the vertical rod 12 on the horizontal rod 11, adjust the up and down position of the bracket 2 passing through point P, and adjust the left and right position of the light fixture mounting bracket 29 on the positioning rod 21.

[0058] (3) Install six light fixtures, namely the first light fixture 24 and the second light fixture 25, to form a first plane and a second plane on the vehicle. Find the points where the first plane and the second plane intersect with the vehicle body respectively, and take the foremost point of the two intersecting lines. The foremost point of the first plane is E1, and the foremost point of the second plane is E2.

[0059] (4) Adjust the height of the measuring rod 31 on the vertical rod 12 and adjust the left and right positions of the reference rod 32 on the measuring rod 31 so that the angle reader 34 and the laser and other structures are aligned with the two foremost points E1 and E2 found.

[0060] (5) Turn off the first light source 24 and the second light source 25 in step (3), install the third light source 26 to form a total of one light source, form a horizontal first horizontal plane on the vehicle, adjust the first horizontal plane downward to the position of the foremost point E1 of the first plane, extend along the projection of the sectional plane toward the inside of the A-pillar, and find the innermost point projection of the first horizontal plane on the A-pillar of the vehicle body.

[0061] (6) Turn off the third light source 26 in step (5), install the fourth light source 27, and a total of two light sources to form a horizontal second horizontal plane on the vehicle. Adjust the second horizontal plane upward to the position of the foremost point E2 of the second plane. Extend along the projection of this plane toward the outside of the A-pillar to find the outermost point projection of the second horizontal plane on the A-pillar of the vehicle body.

[0062] (7) Adjust the laser emitter 36 on the reference rod 32 so that the laser vertically illuminates the innermost point in step (5); adjust the laser emitter 36 on the rotating rod 33 so that the laser vertically illuminates the outermost point in step (6);

[0063] (8) Read the angle value on the angle reader 34. The angle value is the obstacle angle of the A-pillar of the vehicle body.

[0064] While specific embodiments of the invention have been described in detail by way of examples, those skilled in the art should understand that the examples are for illustrative purposes only and not intended to limit the scope of the invention. Those skilled in the art should understand that modifications can be made to the above embodiments without departing from the scope and spirit of the invention. The scope of the invention is defined by the appended claims.

Claims

1. An A-pillar obstacle angle detection device characterized by comprising: The fixed support, the P-point passing support, the A-pillar measuring support and the front wheel alignment support are included. The fixed support includes a horizontal crossbar and a vertical bar which are connected vertically, and the horizontal crossbar is placed horizontally on the ground. The P-point passing support is slidably connected to the vertical bar, and is used to simulate a first plane which is inclined upward by 2 degrees at the P-point and a second plane which is inclined downward by 5 degrees at the P-point. The A-pillar measuring support is slidably connected to the vertical bar and is located above the P-point passing support, and is used to measure the A-pillar obstacle angle. The P-point passing support includes a positioning bar, an upper plane bar and a lower plane bar, the upper plane bar and the lower plane bar are both L-shaped bars which are perpendicular to each other, and one end of each of the upper plane bar and the lower plane bar is connected to the positioning bar. The upper plane bar is inclined upward by 2 degrees from the connection point with the positioning bar, and the lower plane bar is inclined downward by 5 degrees from the connection point with the positioning bar. First light sources are arranged at the bending point, the end point of the upper plane bar and the end point of the positioning bar, and the first light sources are located in the first plane. Second light sources are arranged at the bending point, the end point of the lower plane bar and the end point of the positioning bar, and the second light sources are located in the second plane.

2. The A-pillar corner detection device according to claim 1, characterized in that A third light source is arranged at a position close to the end point of the upper plane bar, and the light surface of the third light source forms a first horizontal plane which intersects the first plane.

3. The A-pillar dead angle detection device according to claim 2, characterized in that A fourth light source is arranged on the vertical bar and the lower plane bar, and the light surface of the fourth light source forms a second horizontal plane which intersects the second plane.

4. The A-pillar corner detection device according to claim 3, characterized in that At least one connecting rod is arranged between the bending edges of the upper plane bar and the lower plane bar which are away from the vertical bar.

5. The A-pillar corner detection device according to claim 4, characterized in that The A-pillar measuring support includes a measuring bar, a reference bar and a rotating bar, one end of the measuring bar is slidably connected to the vertical bar, the other end of the measuring bar is connected to the reference bar, and the reference bar can be horizontally rotated and slid along the connection point of the measuring bar and the reference bar. The rotating bar is connected to the reference bar, and the rotating bar can be horizontally rotated along the connection point of the reference bar. A horizontally arranged laser bar is slidably connected to the reference bar, and a laser emitter which emits laser downward is arranged on the laser bar and the rotating bar.

6. The A-pillar corner detection device according to claim 5, characterized in that The front wheel alignment support includes a front wheel center bar and a laser aligner, the front wheel center bar is vertically connected to the crossbar and is parallel to the vertical bar, and the laser aligner is arranged on the front wheel center bar and is used to correspond to the front wheel center of the vehicle body.

7. A method of detecting an A-pillar obstacle angle, characterized by, The A-pillar obstacle angle detection device is used in the following steps: (1) The vehicle is parked, the window is lowered, the measuring device is placed on one side of the vehicle body, the front wheel alignment support is adjusted in front and back position, the laser aligner is adjusted in up and down position, and the front wheel center is aligned; (2) The vertical bar is adjusted in front and back position on the crossbar, the P-point passing support is adjusted in up and down position, and the light source mounting frame on the positioning bar is adjusted in left and right position. (3) Install six light illuminators, first light illuminator and second light illuminator, to form first plane and second plane on the vehicle, find the intersection points of the first plane and the second plane with the vehicle body, and take the most front point of the two intersection lines; (4) Adjust the height of the measuring rod on the vertical rod, and adjust the left and right position of the reference rod on the measuring rod; (5) Turn off the first light illuminator and the second light illuminator in step (3), install one third light illuminator, to form a horizontal first horizontal plane on the vehicle, adjust the first horizontal plane downward to the most front point of the first plane, and find the most inner point projection of the first horizontal plane on the vehicle A column; (6) Turn off the third light illuminator in step (5), install two fourth light illuminators, to form a horizontal second horizontal plane on the vehicle, adjust the second horizontal plane upward to the most front point of the second plane, and find the most outer point projection of the second horizontal plane on the vehicle A column; (7) Adjust the laser emitter on the reference rod so that the laser irradiates the most inner point in step (5); adjust the laser emitter on the rotating rod so that the laser irradiates the most outer point in step (6); (8) Read the angle value on the angle reader, which is the A column obstacle angle of the vehicle body.

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