Collision test simulation system

Abstract

The invention discloses a collision test simulation system. The collision test simulation system comprises a bottom plate and a support arranged on the bottom plate. The simulation board is used for simulating a front row seat and / or a center console; the mounting plate is fixed to the support, a plurality of mounting holes are formed in the mounting plate in the vertical direction and the horizontal direction, and the simulation plate can be fixed to the mounting plate through the mounting holes; the rotating block is fixed with the bracket; and the rotating support is fixed to the bottom plate, and the rotating block can rotate relative to the rotating support. According to the collision test simulation system, the collision test can be facilitated.

Description

Technical Field

[0001] The present invention relates to the field of vehicle crash tests, and more particularly, to a crash test simulation system. Background Art

[0002] As an important safety component connecting the vehicle body and the occupants in a vehicle, the vehicle seat plays a crucial role in protecting the safety of the occupants. Reasonable design of the vehicle seat can reduce the injuries suffered by the occupants in the event of an accident. A safety problem faced by rear-seat passengers is the "indestructibility" of the front-seat seat back or the center console skeleton, which may potentially cause serious injuries to the heads, chests, and knees of rear-seat passengers. Moreover, during a rear-end collision test, in order to protect the safety of the front-seat passengers, some front seats are designed to allow the backrest to tilt backward to absorb and disperse energy by tilting backward, but this also poses a certain potential safety hazard to the safety of rear-seat passengers.

[0003] In vehicle crash tests, in order to better simulate the real environment in which rear-seat occupants are located during a collision and to evaluate the potential collision risks and injury conditions between the occupants and the front seats and the center console, it is usually necessary to arrange the front seats and the center console in front of the rear-seat passengers.

[0004] One solution is to use real seats and center consoles. Since the seats and center consoles are severely deformed after the crash test and cannot be reused for the next crash test, the sample costs are extremely high. Another solution is to use a fixed rigid wall, but this method has weak applicability and cannot adapt to the seat and center console arrangements of different vehicle models, resulting in repeated costs and warehousing. Summary of the Invention

[0005] The present invention provides a crash test simulation system that can facilitate crash tests.

[0006] According to one aspect of the present invention, a crash test simulation system includes:

[0007] A bottom plate and a bracket provided on the bottom plate;

[0008] A simulation board for simulating the front seat and / or the center console;

[0009] A mounting plate fixed to the bracket, with a plurality of mounting holes provided in the mounting plate along the vertical and horizontal directions, and the simulation board can be fixed to the mounting plate through the mounting holes;

[0010] A rotating block fixed to the bracket; and

[0011] A rotating support fixed to the bottom plate, and the rotating block can rotate relative to the rotating support.

[0012] A crash test simulation system according to one aspect of the present invention, the simulation board comprising:

[0013] A first simulation seat board for simulating a first seat;

[0014] A second simulation seat board for simulating a second seat; and

[0015] An intermediate simulation seat board for simulating an intermediate seat and / or a center console.

[0016] A crash test simulation system according to one aspect of the present invention, the bracket comprising:

[0017] A first bracket for supporting the first simulation seat board;

[0018] A second bracket for supporting the second simulation seat board; and

[0019] An intermediate bracket for supporting the intermediate simulation seat board.

[0020] A crash test simulation system according to one aspect of the present invention, the mounting hole is configured as an oblong hole, and the simulation board is fixed to the mounting hole by a threaded connector.

[0021] A crash test simulation system according to one aspect of the present invention, a bearing is provided on the rotating block, and the rotating block can be supported in the rotating support through the bearing.

[0022] A crash test simulation system according to one aspect of the present invention, a sliding block is fixed on the bracket, and a guide shaft is fixed on the bottom plate, and the sliding block can slide relative to the guide shaft.

[0023] A crash test simulation system according to one aspect of the present invention, a base is provided on the bottom plate, and the guide shaft is rotatably fixed to the base through a pin.

[0024] A crash test simulation system according to one aspect of the present invention, a fixing ring is provided on the guide shaft for restricting the sliding of the sliding block relative to the guide shaft.

[0025] A crash test simulation system according to one aspect of the present invention, an adjusting support is provided on the bottom plate, and the adjusting support is fixed to the bracket by a first pressing block for preventing the bracket from moving in the horizontal direction.

[0026] A collision test simulation system according to one aspect of the present invention, the collision test simulation system includes a second pressing block, and the second pressing block cooperates with the rotating support to prevent the bracket from rotating.

[0027] The beneficial effects of the present invention include: through this collision test simulation system, the versatility of the seat collision test can be improved. BRIEF DESCRIPTION OF THE DRAWINGS

[0028] The disclosure of the present invention will be described with reference to the accompanying drawings. It should be understood that the drawings are only for illustrative purposes and are not intended to limit the scope of protection of the present invention. Among them:

[0029] Figure 1 Schematically shows the structure of a collision test simulation system according to an embodiment of the present invention.

[0030] LIST OF REFERENCE NUMERALS:

[0031] 1 - bottom plate; 2 - base; 3 - pin; 4 - guide shaft; 5 - fixing ring; 6 - sliding block; 7 - adjusting support; 8 - first pressing block; 9 - first rotating support; 10 - first rotating block; 11 - mounting plate; 12 - first simulated seat plate; 13 - second simulated seat plate; 14 - left bracket; 15 - intermediate simulated seat plate; 16 - intermediate bracket; 17 - second rotating support; 18 - second pressing block; 19 - right bracket; 20 - third rotating support; 21 - second rotating block; 22 - rotating shaft; 23 - fourth rotating support. DETAILED DESCRIPTION OF THE INVENTION

[0032] It is easy to understand that according to the technical solution of the present invention, without changing the essence of the present invention, those of ordinary skill in the art can propose various interchangeable structural forms and implementation methods. Therefore, the following detailed description and the accompanying drawings are only exemplary descriptions of the technical solution of the present invention, and should not be regarded as the whole of the present invention or as a limitation or restriction on the technical solution of the present invention.

[0033] The orientation terms mentioned in this specification are defined relative to the structures shown in the respective drawings, and they are relative concepts. Therefore, they may change accordingly depending on their different positions and different usage states. Therefore, these or other orientation terms should not be construed as restrictive terms.

[0034] A crash test simulation system according to an embodiment of the present application includes: a bottom plate and a bracket disposed on the bottom plate; a simulation plate for simulating a front row seat and / or a center console; a mounting plate fixed to the bracket, with a plurality of mounting holes provided in the mounting plate along the vertical and horizontal directions, and the simulation plate can be fixed to the mounting plate through the mounting holes; a rotating block fixed to the bracket; and a rotating support fixed to the bottom plate, and the rotating block can rotate relative to the rotating support.

[0035] In the crash test simulation system according to this embodiment, the front row seat and / or the center console at different angles and positions can be simulated, which is beneficial to improving the effectiveness, versatility and adaptability of the seat crash test. The crash test simulation system can simulate the combinations of seats and center consoles of different vehicle models, for example, ensuring that it can withstand at least the collision impact of a 95-kg dummy at 64 km / h, and can be reused.

[0036] According to an embodiment of the present application, the simulation plate includes: a first simulation seat plate for simulating a first seat; a second simulation seat plate for simulating a second seat; and an intermediate simulation seat plate for simulating an intermediate seat and / or a center console.

[0037] According to an embodiment of the present application, the bracket includes: a first bracket for supporting the first simulation seat plate; a second bracket for supporting the second simulation seat plate; and an intermediate bracket for supporting the intermediate simulation seat plate.

[0038] According to an embodiment of the present application, the mounting holes are configured as waist-shaped holes, and the simulation plate is fixed to the mounting holes through threaded connectors.

[0039] According to an embodiment of the present application, a bearing is provided on the rotating block, and the rotating block can be supported in the rotating support through the bearing.

[0040] According to an embodiment of the present application, a sliding block is fixed to the bracket, and a guide shaft is fixed to the bottom plate, and the sliding block can slide relative to the guide shaft.

[0041] According to an embodiment of the present application, a base is provided on the bottom plate, and the guide shaft is rotatably fixed to the base through a pin.

[0042] According to an embodiment of the present application, a fixing ring is provided on the guide shaft for restricting the sliding of the sliding block relative to the guide shaft.

[0043] According to an embodiment of the present application, an adjustment support is provided on the bottom plate. The adjustment support is fixed to the bracket by a first pressing block to prevent the bracket from moving in the horizontal direction.

[0044] According to an embodiment of the present application, the collision test simulation system includes a second pressing block. The second pressing block cooperates with the rotating support to prevent the bracket from rotating.

[0045] Combined with an embodiment of the present invention Figure 1 As shown, the collision test simulation system is used to simulate the combination of the front row seats and the center console or the middle row seats, and is used for the collision test of the rear row passengers colliding with the front row seats / center console during a vehicle collision, for example, applicable to passenger cars. As can be seen from the reference drawings, the collision test simulation system mainly consists of four major parts: a fixed limit mechanism; a rotation adjustment mechanism; a horizontal distance adjustment mechanism; a vertical distance adjustment mechanism. Since it can be adjusted in all directions, the collision test simulation system can simulate various application scenarios of automobile seats and center console combinations. A dummy is used to simulate the test situation after the head, chest, and leg knees of the rear row passengers collide with the front row seats / center console.

[0046] Fixed limit mechanism: It includes a bottom plate 1, a plug pin 3, a fixed ring 5, a first pressing block 8, a second pressing block 18, and a limit pressing plate. Ensure that each adjustment mechanism has no displacement during the collision test and can withstand the impact load of a 95 kg dummy. The bottom plate 1 serves as the system base and is fixed to the test platform by bolts to ensure overall stability. The plug pin 3 is inserted into the positioning hole of the guide shaft 4 to lock the horizontal displacement of the guide shaft 4 and prevent accidental sliding during the test. The fixed ring 5 fastens the two ends of the guide shaft 4 by threads to limit its axial movement and ensure the rigidity of the horizontal track. The first pressing block 8 and the second pressing block 18 cooperate with the adjustment support 7 and the second rotating support 17 respectively to prevent loosening. A base 2 is fixed on the bottom plate.

[0047] Rotation adjustment mechanism: It includes a first rotating support 9, a second rotating support 17, a third rotating support 20, a fourth rotating support 23, a first rotating block 10, a second rotating block 21, and a rotating shaft 22. Through a multi-point linkage design, it supports the angle adjustment of the first simulated seat plate 12, the second simulated seat plate 13, the left bracket 14, the middle simulated seat plate 15, and the right bracket 19 (such as the backrest tilting from 8° to 40°). The first rotating block 10, the second rotating block 21, and the rotating shaft 22: The rotating blocks are connected to the supports through the rotating shaft to achieve the overall tilting adjustment.

[0048] Horizontal distance adjustment mechanism: It includes a guide shaft 4, a sliding block 6, an adjustment support 7, an installation plate 11, a first simulation seat plate 12, a second simulation seat plate 13, and an intermediate simulation seat plate 15. Through the linear motion of the "guide shaft - sliding block" and the modular design of the simulation plates, rapid adaptation of the seat spacing for multiple vehicle models is achieved. The thread hole spacings are matched, the pin 3 locks the guide shaft 4, and the first pressing block 8 locks the sliding block 6: achieving a front - rear adjustment of 0 - 100 mm for the whole. The adjustment support 7, the sliding block 6, and the first pressing block 8 drive the first simulation seat plate 12, the second simulation seat plate 13, and the intermediate simulation seat plate 15 to move horizontally along the direction of the rotating shaft, for example, achieving a seat width simulation of 400 - 860 mm.

[0049] Vertical distance adjustment mechanism: It includes an installation plate 11, a first simulation seat plate 12, a second simulation seat plate 13, and an intermediate simulation seat plate 15. The vertical positions of the first simulation seat plate 12, the second simulation seat plate 13, and the intermediate simulation seat plate 15 are adjusted through the waist - shaped holes of the installation plate 11 (for example, 550 - 750 mm). Achieving a height adjustment of the first simulation seat plate 12, the second simulation seat plate 13, and the intermediate simulation seat plate 15 of, for example, 550 - 750 mm.

[0050] The usage method of the collision test simulation system is as follows: First, place the entire device on the test platform (for example, with the help of a gantry crane or other handling equipment). After adjusting the distance between it and the test dummy, use screws and toothed limit pressing plates to fix it to the test platform. Then, adjust the angle of the installation plate according to the actual angle of the seat backrest. The adjustment method is as follows:

[0051] Method for adjusting the front - rear angle of the simulation plate: Loosen the screws of the fixing ring 5, the adjustment support 7, the first pressing block 8, the second pressing block 18, the fourth rotating support 23, the first rotating support 9, and the third rotating support 20 in sequence (note: only loosen the screws of the first rotating support 9 and the third rotating support 20, retaining the rotational freedom). Rotate the upper assembly including the installation plate 11, the first simulation seat plate 12, the second simulation seat plate 13, the left support 14, and the right support 19 to tilt the installation plate 11 to the target angle (for example, 8° - 40°). During the rotation, the adjustment support 7 generates an axial compensation displacement (moving along the direction of the guide shaft 4) due to the tilt of the installation plate 11, and at the same time, the first pressing block 8 slides vertically along the threaded surface of the adjustment support 7 to adapt to the geometric relationship after the angle change. After the angle adjustment is completed, tighten the screws of the first rotating support 9, the third rotating support 20, the adjustment support 7, the first pressing block 8, the second pressing block 18, the fourth rotating support 23, and the fixing ring 5 in sequence. The adjustment angle range is from 8° to 40°, and the angle range is limited by the waist - shaped holes from 8° to 40° on the first rotating support 9 and the third rotating support 20. After the adjustment is completed, the fixed angle is mainly achieved by the rigid connection of the adjustment support 7, the first pressing block 8, and the left support 14.

[0052] Simulation seat board distance adjustment: The horizontal distance adjustment is achieved by the sliding block 6 moving along the guiding shaft 4 for 0–100 mm; the vertical distance adjustment is to adjust the vertical positions of the first simulation seat board 12, the second simulation seat board 13, and the middle simulation seat board 15 of the simulation seat board through the waist-shaped holes of the mounting plate 11 for 550–750 mm. Adjust the axial or vertical position of the simulation board according to the distance between the two seats to be measured actually and the height of the seat from the floor. The adjustment method is as follows: Loosen the fixing screws of each simulation board, move each simulation board to make its position consistent with the actual seat (long waist-shaped holes are opened on the mounting plate). There are multiple mounting plates on the collision test simulation system, which can be increased or decreased according to different vehicle models and different requirements.

[0053] The overall pitching angle adjustment of the test bench is ±8° and ±18°, which is used to simulate the spatial relationship between the seat / center console under different collision postures such as frontal collision and rear collision of different vehicles (such as SUV or MPV, etc.). The adjustment mechanism is as follows: Completely loosen the fixing screws of the bottom plate 1, retain the central screw as the rotation fulcrum, and rotate the entire test bench around the middle screw (for example, it is necessary to use a crane or other tools) to rotate it ±8 or ±18 degrees relative to the tabletop. Fixing holes corresponding to each angle are machined on the bottom plate. After rotating to the position, lock the screws at the corresponding positions to complete the pitching angle locking.

[0054] The collision test simulation system according to this embodiment can more realistically simulate the riding environment of the occupants. In addition, the size and rotation angle adjustment range of the seat and the center console are relatively large, and it can be applicable to various vehicle models. For example:

[0055] Simulation front-back adjustment: 0 - 100 mm (the thread hole pitch of the collision tabletop is 100 mm)

[0056] Simulation backrest adjustment: 8° - 40° backward;

[0057] Simulation width adjustment of the two side seats: 400 mm - 860 mm;

[0058] Simulation height adjustment of the two side seats: 550 mm - 750 mm;

[0059] Simulation width adjustment of the middle seat or the center console: 100 mm - 400 mm;

[0060] Simulation height adjustment of the middle seat or the center console: 200 mm - 750 mm;

[0061] Simulation vertical clearance between the seat and the floor: 100 mm - 300 mm;

[0062] Simulation clearance between the middle seat or the center console and the floor: 0 - 200 mm;

[0063] The entire test bench can rotate ±8 degrees and ±18 degrees relative to the bottom surface platform.

[0064] The technical scope of the present invention is not limited to the content described above. Those skilled in the art can make various deformations and modifications to the above embodiments without departing from the technical idea of the present invention, and these deformations and modifications shall fall within the protection scope of the present invention.

Claims

1. A collision test simulation system, characterized in that: The collision test simulation system comprises: A bottom plate and a bracket arranged on the bottom plate; A simulation board, the simulation board is used to simulate front seats and / or a center console; A mounting plate, the mounting plate is fixed to the bracket, a plurality of mounting holes are provided in the mounting plate along the vertical direction and the horizontal direction, and the simulation board can be fixed to the mounting plate through the mounting holes; a rotating block, the rotating block being fixed to the bracket; and A rotating support is fixed to the base plate, and the rotating block can rotate relative to the rotating support.

2. The collision test simulation system according to claim 1, characterized in that: The simulation board includes: a first simulated seat plate, the first simulated seat plate being used to simulate a first seat; a second simulated seat panel, the second simulated seat panel being used to simulate a second seat; and The middle simulated seat panel is used to simulate the middle seat and / or the center console.

3. The collision test simulation system according to claim 1, characterized in that: The support comprises: a first bracket, the first bracket being used to support a first simulated seat plate; a second bracket, the second bracket being used to support a second simulated seat panel; and An intermediate bracket is used to support an intermediate simulated seat panel.

4. The collision test simulation system according to claim 1, characterized in that: The mounting hole is configured as a waist-shaped hole, and the simulation board is fixed to the mounting hole via a threaded connector.

5. The collision test simulation system according to claim 1, characterized in that: A bearing is provided on the rotating block, and the rotating block can be supported in the rotating support through the bearing.

6. The collision test simulation system according to claim 1, characterized in that: A sliding block is fixed on the bracket, and a guide shaft is fixed on the bottom plate. The sliding block can slide relative to the guide shaft.

7. The collision test simulation system according to claim 6, characterized in that: A base is provided on the bottom plate, and the guide shaft is rotatably fixed to the base through a latch.

8. The collision test simulation system according to claim 6, characterized in that: A fixing ring is arranged on the guide shaft for limiting the sliding of the sliding block relative to the guide shaft.

9. The collision test simulation system according to claim 1, characterized in that: An adjustment support is provided on the bottom plate, and the adjustment support is fixed to the bracket via a first pressing block, so as to prevent the bracket from moving in a horizontal direction.

10. The collision test simulation system according to claim 1, characterized in that: The collision test simulation system comprises a second pressing block, which cooperates with the rotating support to prevent the bracket from rotating.

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