Framework structure of soft target vehicle for testing

Abstract

According to the framework structure of the soft target vehicle for testing provided by the utility model, the connecting mode of the framework structure is improved, so that the testing efficiency is improved. The framework structure comprises an elastic telescopic piece, two side plates and a middle plate set at least comprising one plate, and the two side plates abut against the two sides of the middle plate set. The length of the elastic telescopic part can be extended or retracted under the elastic action, the elastic telescopic part penetrates through the middle plate set, one end of the elastic telescopic part is connected with one side plate, the other end of the elastic telescopic part is connected with the other side plate, and the elastic telescopic part is configured to deform when the relative positions of the middle plate set and the side plates are changed. The two ends of the traction rope are fixed through the side plates, the middle of the traction rope penetrates through the middle plate set between the two side plates, and at least one end of the traction rope is connected with the corresponding side plate through the spring, so that the length of the elastic telescopic piece can be changed under the action of the spring, and the elastic telescopic piece can stretch out and draw back under the action of elastic force after collision. And the side plates and the middle plate group can roughly or completely recover to the original relative positions.

Description

Technical Field

[0001] This application relates to the field of testing technologies, and in particular, to a frame structure of a soft target vehicle for testing. Background Art

[0002] In the AEB function test of an advanced driver assistance system, it is necessary to set a target vehicle (GVT, Global Vehicle Target) to simulate a test scenario. The specifications and requirements of the target object used can refer to the description in Appendix C, Test Methods for Active Safety ADAS Systems, of the C-NCAP Management Rules (2021 Edition). Currently, most of the test target vehicles are 3D-guided soft target vehicles (GST, Guided Soft Target), which can replace real vehicles in any collision situation and have the advantages of being able to withstand high-speed impacts and being reusable.

[0003] The current GST consists of three parts: a skin, a keel, and wheels. Each part is connected by Velcro and fixed on the GST moving platform. This connection method is convenient for disassembly and installation and can disconnect in time during a collision. However, after a collision with a relatively high collision speed during the test, the soft target vehicle will disintegrate, the skin will fall off, and the components of the keel will shift and scatter. When testing is required again, it needs to be reassembled according to the corresponding positions, which takes a long time and reduces the test efficiency. Summary of the Utility Model

[0004] The utility model provides a frame structure of a soft target vehicle for testing, which improves the test efficiency by improving the connection method of the frame structure.

[0005] This application provides a frame structure of a soft target vehicle for testing, including an elastic telescopic member, two side plates, and an intermediate plate group including at least one plate. The two side plates abut against both sides of the intermediate plate group; the length of the elastic telescopic member can extend or retract under elastic action. The elastic telescopic member passes through the intermediate plate group, one end of which is connected to one side plate, and the other end is connected to the other side plate. The elastic telescopic member is configured to deform when the relative positions of the intermediate plate group and the side plates change.

[0006] Thus, both ends of the pulling rope are fixed by the side plates. The middle part of the pulling rope passes through the intermediate plate group between the two side plates. At least one end of the pulling rope is connected to the corresponding side plate through a spring, so that the elastic telescopic member can change its length under the action of the spring. When the soft target vehicle is assembled and in a state to be tested, the relative position between the side plates and the intermediate plate group is maintained by the elastic telescopic member. That is to say, the intermediate plate group and the side plates on both sides of it are tightened by the elastic telescopic member. When the soft target vehicle is impacted or under the action of inertia during the test process and the relative position between the side plates and the intermediate plate group changes, the spring is further stretched and thus deformed. At this time, the pulling rope can still connect the side plates and the intermediate plate group to prevent the side plates from separating from the intermediate plate group. In addition, under the elastic action of the spring, the change amount of the relative position between the side plates and the intermediate plate group is restricted. At the same time, after the impact, under the action of the elastic force, the side plates and the intermediate plate group can roughly or completely return to the original relative position.

[0007] In this way, when the improved soft target vehicle collides, the components of the keel structure will not fly around but fly out as a whole or be squeezed inside. The components among them are pulled by each other through the spring and the pulling rope. When the relative position between the side plates and the intermediate plate group changes and the distance increases, the spring is stretched. At this time, the spring will store energy. After the collision ends and the external force disappears, the elastic force stored in the spring will drive in the reverse direction and reset automatically, and the soft target vehicle will complete the assembly automatically. If necessary, only the relative position relationship between the side plates and the intermediate plate group needs to be simply adjusted manually. Such an operation method is simpler and more efficient, significantly reducing the assembly time of the soft target vehicle and improving the test efficiency.

[0008] Optionally, the elastic telescopic member includes a pulling rope and a spring. One end of the pulling rope is connected to one end of the spring, and the other end of the spring is fixed to one of the side plates, and the other side plate is connected to the other end of the pulling rope.

[0009] Optionally, the elastic telescopic member includes a pulling rope and a spring. Springs are connected to both ends of the pulling rope, and the two ends of the pulling rope are respectively connected to the corresponding side plates through the corresponding springs.

[0010] Optionally, the elastic telescopic member further includes a housing. The end of the spring is connected to the housing, and the housing is embedded in the side plate.

[0011] Optionally, the spring is a scroll spring, and a support shaft is fixedly provided on the housing, and the scroll spring is wound and connected to the support shaft.

[0012] Optionally, the scroll spring has a plate-like structure, and a waist-shaped structure is formed at one end connected to the pulling rope, and the end of the pulling rope is wound around the waist-shaped structure.

[0013] Optionally, the elastic telescopic member extends in the width direction of the vehicle;

[0014] The soft target vehicle includes a longitudinal plate group and a transverse plate. The longitudinal plate group is the intermediate plate group, and the transverse plate connected to the longitudinal plate group is the side plate.

[0015] Optionally, the longitudinal plate group includes two longitudinal plates and an intermediate support plate. The two longitudinal plates are arranged in parallel in the width direction of the soft target vehicle, and the intermediate support plate is supported between the two longitudinal plates. The elastic telescopic member penetrates through the longitudinal plates and the support plate in the thickness direction of the longitudinal plates.

[0016] Optionally, the elastic telescopic member extends in the length direction of the vehicle;

[0017] The soft target vehicle includes a longitudinal plate group and a transverse plate. The longitudinal plate group includes at least one longitudinal plate. The longitudinal plate includes several plate segments. The two plate segments are distributed in the front-back direction of the soft target vehicle and are respectively arranged on both sides of the transverse plate. The plate segments are the side plates, and the transverse plate is the intermediate plate group.

[0018] Other features and advantages of the present specification will become clear through the following detailed description of the exemplary embodiments of the present specification with reference to the accompanying drawings. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] The drawings incorporated in and constituting a part of this specification illustrate embodiments of the present specification and, together with the description thereof, are used to explain the principles of the present specification.

[0020] Figure 1 is a schematic structural diagram of the frame structure in an embodiment of the present application;

[0021] Figure 2 is Figure 1 an exploded view of, one of;

[0022] Figure 3 is Figure 1 an exploded view of, two of;

[0023] Figure 4 is a partial structural schematic diagram of the elastic telescopic member;

[0024] Figure 5 is a schematic diagram of the waist-shaped structure;

[0025] Figure 6 is an exploded view of the intermediate plate group and the side plate;

[0026] Figure 7 is Figure 6 a partially enlarged schematic diagram of the structure of;

[0027] Figure 8This is a partial coordination diagram of the support tube and the pulling rope.

[0028] Figures 1-8 middle:

[0029] 100. Skeleton structure;

[0030] 10. Elastic expansion joint; 10a. Class I elastic expansion joint; 10b. Class II elastic expansion joint;

[0031] 11. Pull rope; 12. Spring; 121. Waist; 122. Spring plate; 13. Housing;

[0032] 14. Support shaft;

[0033] 20. Side panel; 21. Slot; 22. Stopper rod; 2-1. Horizontal panel; 2-2. Panel section;

[0034] 30. Middle plate group; 3-1. Longitudinal plate group; 3-1a. Left longitudinal plate; 3-1b. Middle support plate; 3-1c. Right longitudinal plate; 2-1. Horizontal plate; 31. Passage; 32. Support tube. DETAILED DESCRIPTION

[0035] The utility model provides a skeleton structure of a soft target vehicle for testing, and improves the test efficiency by improving the connection mode of the skeleton structure.

[0036] In order to enable those skilled in the art to better understand the present invention, the present invention will be described in further detail below with reference to the accompanying drawings and specific implementation methods.

[0037] The up, down, left, and right directions in this article are defined with reference to the normal use state of the soft target vehicle. In the height direction of the soft target vehicle, the direction close to the ground is down, and the direction away from the ground is up. The height direction perpendicular to the soft target vehicle is the horizontal direction. In the horizontal direction, the side where the front of the vehicle is located is the front, and the side where the rear of the vehicle is located is the rear. When the soft target vehicle is moving forward, the direction on the left hand side is defined as left, and the direction on the right hand side is defined as right. In other words, the front and back direction is the length direction of the soft target vehicle, and the left and right direction is the width direction of the soft target vehicle.

[0038] Relational terms such as “first” and “second” are used merely to distinguish one component from another having the same name, but do not necessarily require or imply any actual relationship or order between these components.

[0039] Please refer to Figures 1 to 4 , Figure 1 This is a schematic diagram of the skeleton structure in the embodiment of the present application. Figure 2 yes Figure 1 Exploded image, one; Figure 3 yesFigure 1 Exploded view, part two; Figure 4 It is a partial structural schematic diagram of the elastic telescopic member.

[0040] As shown in the figure, the skeleton structure 100 of the soft target vehicle for testing of the present utility model is used to form the outer contour of the soft target vehicle for testing. A skin (not shown in the figure) can be covered outside the skeleton structure 100; the skeleton structure 100 includes side plates 20, an intermediate plate group 30 and a connecting device. The connecting device is used to connect the side plates 20 and the intermediate plate group 30. The intermediate plate group 30 includes at least one plate. That is to say, the intermediate plate is one plate, two plates or more than two plates. The number of side plates 20 is two. The two side plates 20 can be a split structure or an integral structure. When the two side plates 20 are an integral structure, the two side plates 20 and the intermediate plate can be connected by means such as insertion. No matter which connection method is used, finally the two side plates 20 abut against both sides of the intermediate plate group 30, and the two side plates 20 are located in the same plane; the main improvement of the present application relates to the connection method between the two side plates 20 and the intermediate plate group 30. The two side plates 20 and the intermediate plate group 30 are connected through an elastic telescopic member 10.

[0041] The length of the elastic telescopic member 10 can be elongated or retracted under the elastic action. The elastic telescopic member 10 specifically includes a pulling rope 11 and a spring 12. The pulling rope 11 cannot be deformed into a steel wire rope or the like. The spring 12 is arranged at one end of the pulling rope 11. The other end of the spring 12 is fixed to the side plate 20. That is to say, the end of the pulling rope 11 is connected to the side plate 20 through the spring 12. The other end of the pulling rope 11 is directly connected to the other side plate 20. The middle of the pulling rope 11 passes through the intermediate plate group 30; alternatively, springs 12 are connected to both ends of the pulling rope 11, and both ends of the pulling rope 11 are respectively connected to the corresponding side plates 20 through the corresponding springs 12; in the above two methods, the middle of the pulling rope 11 passes through the intermediate plate group 30, and at least part of the pulling rope 11 is located inside the intermediate plate group 30; among them, the spring 12 can be a scroll spring, but is not limited thereto.

[0042] Thus, both ends of the pulling rope 11 are fixed by the side plates 20. The middle part of the pulling rope 11 passes through the intermediate plate group 30 between the two side plates 20. At least one end of the pulling rope 11 is connected to the corresponding side plate 20 through a spring 12, so that the elastic telescopic member 10 can change its length under the action of the spring 12. When the soft target vehicle assembly is completed and in a state to be tested, the relative position between the side plate 20 and the intermediate plate group 30 is maintained by the elastic telescopic member 10. That is to say, the intermediate plate group 30 and the side plates 20 on both sides of it are tightened by the elastic telescopic member 10. When the relative position between the side plate 20 and the intermediate plate group 30 changes during the test of the soft target vehicle due to being impacted or under the action of inertia, the spring 12 is further stretched and thus deformed. At this time, the pulling rope 11 can still connect the side plate 20 and the intermediate plate group 30 to prevent the side plate 20 from being disengaged from the intermediate plate group 30. In addition, under the elastic action of the spring 12, the change amount of the relative position between the side plate 20 and the intermediate plate group 30 is limited. At the same time, after the impact, under the action of the elastic force, the side plate 20 and the intermediate plate group 30 can roughly or completely return to their original relative positions.

[0043] In this way, when the improved soft target vehicle collides, the components of the keel structure will not fly around but fly out as a whole or be squeezed inside. The components are pulled by each other through the spring 12 and the pulling rope 11. When the relative position between the side plate 20 and the intermediate plate group 30 changes and the distance between them increases, the spring 12 is stretched. At this time, the spring 12 will store energy. After the collision ends and the external force disappears, the elastic force stored in the spring 12 will drive in the reverse direction for automatic reset, and the soft target vehicle will complete the assembly automatically. If necessary, only the relative position relationship between the side plate 20 and the intermediate plate group 30 needs to be simply adjusted manually. Such an operation method is simpler and more efficient, significantly reducing the assembly time of the soft target vehicle and improving the test efficiency.

[0044] In the above embodiment, the elastic telescopic member 10 may not be the structure of the spring 12 and the pulling rope 11. The elastic telescopic member 10 itself may also be an elastic rope, as long as its length can be extended or retracted under the elastic action.

[0045] Please refer to Figure 4 and Figure 5 , Figure 5It is a schematic diagram of a kidney-shaped structure. As shown in the figure, in a specific implementation, taking the spring 12 as a scroll spring as an example, the elastic telescopic member 10 further includes a housing 13. The end of the spring 12 is connected to the housing 13, and the pulling rope 11 can extend or retract from the housing 13. The housing 13 is embedded in the side plate 20, and a support shaft 14 is fixedly provided on the housing 13. The scroll spring is wound and connected to the support shaft 14. Thus, when the distance between the side plate 20 and the intermediate plate group 30 changes, the scroll spring is stretched and extends out of the housing 13. After the external force disappears at the end of the collision, the elastic force of the scroll spring forms a reverse drive, and the extended scroll spring will automatically retract into the housing 13.

[0046] The scroll spring is in a plate-like structure, and a kidney-shaped structure is formed at one end connected to the pulling rope 11. The end of the pulling rope 11 is wound around the kidney-shaped structure, thereby forming a fixed connection between the pulling rope 11 and the scroll spring. More specifically, as shown in the figure, notches are respectively formed on the upper and lower sides of the spring plate 122 of the scroll spring, thereby forming a waist portion 121. The radial dimension of the waist portion 121 is smaller than the dimension of the spring plate 122 in the up and down directions. In this way, the waist portion 121 provides a connection position for the pulling rope 11 and improves the connection strength between the pulling rope 11 and the spring plate 122.

[0047] Next, two specific embodiments are used to illustrate the connection method of the skeleton structure 100 of the soft target vehicle. The two embodiments mainly distinguish the arrangement orientation of the elastic telescopic member 10 to provide more ways for those skilled in the art to realize the connection of the skeleton structure 100. In the first embodiment, the elastic telescopic member 10 extends along the width direction to form a connection with the corresponding plate member of the skeleton structure 100 in the width direction. In the second embodiment, the elastic telescopic member 10 extends along the length direction to form a connection with the corresponding plate member of the skeleton structure 100 in the length direction.

[0048] Embodiment 1

[0049] In this embodiment, refer to Figure 1 and Figure 2, the frame structure 100 includes a longitudinal plate group 3-1 and a transverse plate 2-1. The longitudinal plate group 3-1 determines the dimension in the vehicle length direction. The longitudinal plate group 3-1 includes two longitudinal plates (the left longitudinal plate 3-1a and the right longitudinal plate 3-1c respectively) and an intermediate support plate 3-1b. The two longitudinal plates are arranged in parallel in the width direction of the target vehicle, and the intermediate support plate 3-1b is supported between the two longitudinal plates. In the width direction of the vehicle, there is a transverse plate 2-1. The transverse plates 2-1 are respectively arranged on the left and right sides of the longitudinal plate group 3-1. A plurality of transverse plates 2-1 on the left side are arranged at intervals in the length direction, and a plurality of transverse plates 2-1 on the right side are also arranged at intervals in the length direction. The transverse plates 2-1 on the left and right sides of the longitudinal plate group 3-1 are in the same plane. In this embodiment, the above-mentioned longitudinal plate group 3-1 is the aforementioned intermediate plate group 30, and the transverse plate 2-1 is the aforementioned side plate 20; define the elastic telescopic member 10 extending in the width direction of the vehicle as a type I elastic telescopic member 10a. The longitudinal plate group 3-1 and the transverse plate 2-1 are connected by the type I elastic telescopic member 10a; torsion springs are arranged in the transverse plates 2-1 on the left and right sides. The two ends of the pulling rope 11 are respectively connected to the torsion springs on the corresponding sides. The middle part of the pulling rope 11 sequentially passes through the longitudinal plate on the left side, the intermediate support plate 3-1b and the longitudinal plate on the right side, so as to connect the transverse plate 2-1 and the longitudinal plate group 3-1 in the width direction.

[0050] Embodiment 2

[0051] Different from "Embodiment 1", in this embodiment, please refer to Figure 1 and Figure 3 , each longitudinal plate includes at least two plate segments 2-2. The two plate segments 2-2 are arranged in sequence front and back, and a transverse plate 2-1 is also connected between the two plate segments 2-2; in this embodiment, the transverse plate 2-1 is the intermediate plate group 30, and the two plate segments 2-2 arranged on both sides of the transverse plate 2-1 are the side plates 20. Define the elastic telescopic member 10 extending in the vehicle length direction as a type II elastic telescopic member 10b; torsion springs are respectively arranged in the two plate segments 2-2 at the front side and the rear side. The two ends of the pulling rope 11 are respectively connected to the torsion springs on the corresponding sides. The middle part of the pulling rope 11 passes through the transverse plate 2-1, so that in the length direction, different plate segments 2-2 of the longitudinal plate are connected by the type II elastic telescopic member 10b.

[0052] Through the above two connection methods, those skilled in the art can set the size and length of the plate members of the frame structure 100 according to needs, and then connect the frame structure 100 with the type I elastic telescopic member 10 or the type II elastic telescopic member 10 according to actual needs.

[0053] Next, in combination with Figures 6-8 the specific installation steps of the elastic telescopic member 10 according to the present invention will be described. Figure 6 is an exploded view of the intermediate plate group and the side plate; Figure 7 isFigure 6 Schematic diagram of enlarged partial structure; Figure 8 It is a local cooperation diagram of the support tube and the pulling rope.

[0054] Step 1: First, wind the scroll spring tightly around the support shaft 14, and a waist portion 121 for connecting with the pulling rope 11 is formed at the front end of the spring plate 122; Step 2: Then, wind one end of the pulling rope 11 around the waist portion 121 of the spring plate 122 for one circle and weld it to the spring plate 122 for fixation; Step 3: Finally, place the outer shell together with the scroll spring into the installation groove reserved in advance by the corresponding side plate 20, and perform a sealing operation on the installation groove; In order to facilitate the connection of the other end of the pulling rope 11 with the scroll spring on the other side, a square card slot 21 is provided on the end face of the plate member, and a bottom opening for passing through the pulling rope 11 is provided at the bottom of the card slot 21. The other end of the pulling rope 11 extends out from the bottom opening and is sleeved with a stop rod 22. When the other end of the pulling rope 11 is not connected to the scroll spring on the other side, the other end of the pulling rope 11 is held on the end face of the plate member through the cooperation between the stop rod 22 and the card slot 21; When it is necessary to connect with the scroll spring on the other side, pass the pulling rope 11 through the pre-opened channel 31 of the intermediate plate group 30, wind and fix it to the waist portion 121 of the scroll spring on the other side, and then form a fixed connection between the scroll spring on the other side and the corresponding side plate 20. A support tube 32 can also be sleeved in the channel 31 to prevent the channel 31 from being damaged.

[0055] The above has introduced the instrument supply device provided by the present invention in detail. Specific examples are used in this article to elaborate on the principle and implementation manner of the present invention. The description of the above embodiments is only used to help understand the core idea of the present invention. It should be noted that for those of ordinary skill in the art in this technical field, without departing from the principle of the present invention, several improvements and modifications can still be made to the present invention, and these improvements and modifications also fall within the protection scope of the claims of the present invention.

Claims

1. A skeleton structure of a soft target vehicle for testing, characterized in that, It includes an elastic telescopic member, two side plates, and an intermediate plate group including at least one plate. The two side plates abut against both sides of the intermediate plate group; The length of the elastic telescopic member can elongate or retract under elastic action. The elastic telescopic member passes through the intermediate plate group, one end of which is connected to one side plate, and the other end is connected to the other side plate. The elastic telescopic member is configured to deform when the relative positions of the intermediate plate group and the side plates change.

2. The skeleton structure of the soft target vehicle for testing according to claim 1, characterized in that, The elastic telescopic member includes a pulling rope and a spring. One end of the pulling rope is connected to one end of the spring, the other end of the spring is fixed to one side plate, and the other side plate is connected to the other end of the pulling rope.

3. The skeleton structure of the soft target vehicle for testing according to claim 1, characterized in that The elastic telescopic member includes a pulling rope and a spring. Springs are connected to both ends of the pulling rope, and the two ends of the pulling rope are respectively connected to the corresponding side plates through the corresponding springs.

4. The skeleton structure of the soft target vehicle for testing according to claim 2 or 3, characterized in that, The elastic telescopic member further includes a housing. The end of the spring is connected to the housing, and the housing is embedded in the side plate.

5. The skeleton structure of the soft target vehicle for testing according to claim 4, characterized in that, The spring is a scroll spring. The housing is fixedly provided with a support shaft, and the scroll spring is wound and connected to the support shaft.

6. The skeleton structure of the soft target vehicle for testing according to claim 5, characterized in that, The scroll spring has a plate-like structure, and a waist-shaped structure is formed at one end connected to the pulling rope. The end of the pulling rope is wound around the waist-shaped structure.

7. The skeleton structure of the soft target vehicle for testing according to claim 5 or 6, characterized in that The elastic telescopic member extends along the width direction of the vehicle; The soft target vehicle includes a longitudinal plate group and a transverse plate. The longitudinal plate group is the intermediate plate group, and the transverse plate connected to the longitudinal plate group is the side plate.

8. The skeleton structure of the soft target vehicle for testing according to claim 7, characterized in that, The longitudinal plate group includes two longitudinal plates and an intermediate support plate. The two longitudinal plates are arranged in parallel in the width direction of the soft target vehicle. The intermediate support plate is supported between the two longitudinal plates. The elastic telescopic member penetrates through the longitudinal plates and the support plate along the thickness direction of the longitudinal plates.

9. The skeleton structure of the soft target vehicle for testing according to claim 5 or 6, characterized in that, The elastic telescopic member extends along the length direction of the vehicle; The soft target vehicle includes a longitudinal plate group and a transverse plate. The longitudinal plate group includes at least one longitudinal plate. The longitudinal plate includes several plate segments. The two plate segments are distributed in the front-back direction of the soft target vehicle and are respectively arranged on both sides of the transverse plate. The plate segments are the side plates, and the transverse plate is the intermediate plate group.

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