Head rebound simulation device and side impact simulation system

Abstract

The present disclosure relates to a head rebound simulation device configured to simulate a rebound of a head of an occupant on a collision side in a side collision and thereby simulate an impact of the head of the occupant on the collision side on a far-side airbag, the head rebound simulation device being arrangeable within a body frame jig of a side collision simulation system for simulating a side collision, wherein the head rebound simulation device comprises an acceleration device configured to generate an acceleration to simulate an impact force of the head of the occupant on the collision side on the far-side airbag in the side collision, and a frame in which the acceleration device is received. Furthermore, the present disclosure relates to a side collision simulation system. The head rebound simulation device enables a low-cost implementation or simulation of a head rebound movement of an occupant or dummy on the collision side.

Description

Technical Field

[0001] This disclosure relates to the field of airbag technology, and in particular to a head rebound simulation device and a side impact simulation system. Background Technology

[0002] Remote airbags are a crucial component of modern vehicle passive safety systems, designed to protect passengers in the event of a collision. Typically installed on the inside of the driver's seat back, remote airbags are designed with two large-capacity chambers for the head and chest. They effectively absorb the impact of a collision and provide adequate support, reducing the risk of a collision between the front passenger and the driver. In side-impact collisions, remote airbags significantly reduce injuries to occupants from impacts with interior components such as the dashboard and seats, and protect against lateral curvature of the occupant's spine.

[0003] To ensure that severe collisions do not occur between front-seat occupants in actual crashes, the distal airbags require meticulous design and development, and these designs must be tested to verify their feasibility. During the actual development of distal airbags, since the interaction primarily occurs between the airbag and the occupants on the non-collision side, the airbag supplier's development perspective focuses more on the injury situation of the non-collision side occupants. This is predicted through a dual-occupant side-mounted airbag test.

[0004] The dual-occupant side impact test is a simulation method for real-vehicle side impact tests. However, since the occupants (especially the head) will move towards the impact side first and then rebound towards the non-impact side during the collision, this head rebound motion affects the injury value of the non-impact side occupants and the protection of the distal airbag. Therefore, the current side impact test also places a collision dummy on the impact side to simulate this head rebound motion.

[0005] like Figures 1 to 6As shown, in the existing side impact simulation system 200, the side impact simulation system 200 includes a vehicle frame clamp 210, an intrusion clamp 220 with a simulated pillar 221, a power source configured as a hydraulic piston 230, and a slide rail 240. The intrusion clamp 220 and the vehicle frame clamp 210 can slide on the slide rail 240. Two dummies are arranged in the vehicle frame clamp 210: a dummy 250 on the impact side (here, the driver's dummy) and a dummy 260 on the non-impact side (here, the passenger's dummy). In addition, simulated car doors 270 and simulated car roofs 280 are arranged in the vehicle frame fixture 210. The simulated car doors 270 and simulated car roofs 280 are respectively connected to elastic deformation structures 290. The elastic deformation structures 290 can be honeycomb aluminum or metal tubes, etc. These elastic deformation structures 290 extend through the vehicle frame fixture 210 toward the intrusion fixture 220, with a certain amount of extension so that they can be pressed in by the simulated pillars 221 on the intrusion fixture 220 during the experiment. Figure 2 As shown, after the experiment begins, the hydraulic piston rod 231 of the hydraulic piston 230, which serves as the power source, moves, contacts the intrusion clamp 220, and begins to push the intrusion clamp 220 to slide on the slide rail 240. Then, as... Figure 3 As shown, after the intrusion clamp 220 accelerates, it impacts the elastically deformable structure 290 at a certain speed. Then, as... Figure 4 As shown, the elastic deformation structure 290 begins to deform, simultaneously pushing the simulated roof 280 and the simulated door 270. Then as... Figure 5 As shown, the elastic deformation structure 290 continues to deform, continuously pushing the simulated roof 280 and simulated door 270. Finally, as... Figure 6 As shown, after the elastic deformation structure 290 is compressed to a certain length, the intrusion clamp 220 will directly contact the vehicle frame clamp 210, accelerating the entire vehicle body. At this point, the intrusion into the door and roof will cease. After the intrusion stops, the driver's dummy rebounds, causing its head to bounce back. Traditional side-mounted dual-occupant sliding platform experiments have the following shortcomings or areas for improvement: 1. The single power source must both generate the intrusion through the elastic deformation structure 290 and drive the entire vehicle frame clamp 210, resulting in a complex control scheme; 2. The deformation repeatability of the elastic deformation structure 290 is low, potentially causing instability in each experiment's intrusion and consequently, instability in the driver's dummy's head rebound; 3. The experimental setup requires numerous devices, a long preparation time, a strong power source, and poor repeatability, necessitating multiple experiments. These shortcomings and deficiencies generally lead to high experimental costs, making the experiment time-consuming, labor-intensive, and uneconomical.

[0006] Therefore, in view of the shortcomings of existing side-mounted dual-occupant sliding stage test equipment, there is an urgent need for a new type of head rebound simulation device that can realize or simulate the head rebound motion of the occupant or dummy on the collision side at low cost. Utility Model Content

[0007] The purpose of this disclosure is to provide a head rebound simulation device that can realize or simulate the head rebound motion of a occupant or dummy on the side of a collision at low cost. Furthermore, this head rebound simulation device can achieve highly reproducible or repeatable head rebound motion. Another purpose of this disclosure is to provide a side impact simulation system equipped with the aforementioned head rebound simulation device and a method for simulating a side impact.

[0008] To achieve the above objectives, a first aspect of this disclosure relates to a head rebound simulation device, characterized in that the head rebound simulation device is configured to simulate the rebound of an occupant's head on the impact side in a side collision and thereby simulate the impact of the occupant's head on the distal airbag on the impact side. The head rebound simulation device can be disposed within a vehicle frame fixture of a side collision simulation system for simulating side collisions. The head rebound simulation device includes: an acceleration device configured to generate acceleration to simulate the impact force exerted on the distal airbag by the occupant's head on the impact side in a side collision; and a frame in which the acceleration device is received.

[0009] When using the head rebound simulation device according to this disclosure, since the head rebound simulation device can simulate the head rebound of the occupant (or dummy) on the impact side during a side collision, at least the dummy on the impact side can be eliminated. Furthermore, it eliminates the need for various devices or components involved in generating head rebound in the original side-mounted dual-occupant slide test, such as intrusion clamps, elastic deformation structures, and related simulated roofs and doors. Compared to the original side-mounted dual-occupant slide test, this offers the following advantages: 1. Since the intrusion clamps and elastic deformation structures are eliminated, the sole power source no longer needs to generate intrusion through the intrusion clamps and elastic deformation structures, but only generates the movement of the vehicle frame clamps, thus reducing the power requirement of the power source; 2. By eliminating intrusion and directly generating or simulating head rebound through the head rebound simulation device, the rebound timing and speed of each experiment are controllable and stable; 3. The experimental setup requires fewer devices and has a shorter preparation time, generating head rebound directly without the need for a strong power source. Therefore, excellent repeatability can be achieved, and the overall experimental cost is significantly reduced.

[0010] In some embodiments, the acceleration device is configured as a power-storing acceleration device, which includes a power-storing impact device for storing energy and generating an impact upon release, as well as a holding and releasing device for keeping the power-storing impact device in a ready-to-release state and for releasing the power-storing impact device. This allows for simple control and good impact effect and impact force setting.

[0011] In some embodiments, the energy storage impact device includes a piston and a spring, with the spring sleeved on the piston rod. Thus, by selecting springs with different parameters, different speeds or accelerations can be achieved, thereby simulating different head rebound speeds or head rebound accelerations.

[0012] In some embodiments, the holding and releasing device includes an electromagnet that can attract the energy storage impact device when energized and release it when de-energized. This achieves good holding and releasing effects and control.

[0013] In some embodiments, the holding and releasing device includes an electromagnet that, when energized, attracts the end of the piston facing the electromagnet and compresses a spring via the piston head, and when de-energized, releases the spring to eject the piston. This achieves good holding and releasing performance and control.

[0014] In some embodiments, the end of the piston facing the electromagnet includes a disc-shaped portion or is configured as a disc.

[0015] In some embodiments, the frame includes a piston-spring receiving portion for receiving the piston and spring, the piston and spring being at least partially received within the piston-spring receiving portion, with one end of the spring abutting against the bottom of the piston-spring receiving portion. This ensures that the spring is well received and compressed.

[0016] In some embodiments, a through hole is provided in the bottom of the piston-spring receiving part for the piston rod of the piston to pass through.

[0017] In some embodiments, a dummy head is arranged on the airbag-facing end of the acceleration device. This provides a good simulation of the dummy head. Furthermore, various types of dummy heads can be arranged to simulate different head sizes.

[0018] In some embodiments, a dummy head is positioned on the piston head that faces the airbag. This provides a good simulation of the dummy head. Furthermore, various types of dummy heads can be used to simulate different head sizes.

[0019] In some embodiments, the dummy head is selected from the following dummy head series: adult male dummy head, adult female dummy head, and adolescent dummy head. This allows for the simulation of different head sizes.

[0020] In some embodiments, the head rebound simulation device further includes a fixing bracket for securing the frame with the acceleration device within the vehicle body frame fixture. A portion of the fixing bracket is connected to the frame, and another portion of the fixing bracket is provided with a connecting structure for connecting to a mating connecting structure within the vehicle body frame fixture. This allows for a secure fixation of the head rebound simulation device.

[0021] In some embodiments, the fixing bracket has at least one of the following features: the fixing bracket is configured in an L-shape; the portion of the fixing bracket connected to the frame is connected to the side of the frame; the fixing bracket has a reinforcing web; and the connection structure of the fixing bracket is configured with at least one mounting hole. This results in an advantageous fixing bracket structure.

[0022] The second aspect of this disclosure relates to a side impact simulation system, characterized in that the side impact simulation system comprises: a vehicle frame fixture, in which a distal airbag is arranged; a head rebound simulation device according to any one of the foregoing embodiments of this disclosure, the head rebound simulation device being arranged within the vehicle frame fixture; a slide rail on which the vehicle frame fixture can slide; and a power source configured to push the vehicle frame fixture to slide on the slide rail. This similarly achieves the following advantages: 1. Since the intrusion fixture and elastic deformation structure are eliminated, the sole power source does not need to generate the movement of the vehicle frame fixture, thus the power requirement for the power source is not high; 2. By eliminating intrusion, head rebound is directly generated or simulated through the head rebound simulation device, and the rebound time and speed of each experiment are controllable and stable; 3. Fewer experimental devices are required, preparation time is short, and head rebound is generated directly without the need for a strong power source. Therefore, good repeatability can be achieved, and the overall experimental cost is greatly reduced.

[0023] In some implementations, only a single non-collision side dummy simulating the behavior of a non-collision side occupant in a side collision is arranged in the vehicle frame fixture.

[0024] In some embodiments, the head rebound simulation device is arranged within the vehicle frame fixture on the side of the impact side of the vehicle frame fixture. This allows for an advantageous arrangement of the head rebound simulation device.

[0025] In some embodiments, the firing direction of the acceleration device of the head rebound simulator is directed toward the position to be occupied by the deployed distal airbag.

[0026] In some embodiments, the launch direction of the acceleration device is parallel to the lateral direction of the vehicle frame clamp. This allows for an advantageous launch orientation of the acceleration device.

[0027] In some embodiments, the launch direction of the acceleration device is at an angle to the lateral direction of the vehicle frame clamp. This allows for another advantageous launch orientation of the acceleration device.

[0028] In some embodiments, an angle adjustment device is arranged between the head rebound simulator and the mating connection structure within the vehicle frame fixture for fixing the head rebound simulator, for adjusting the angle between the launch direction of the acceleration device and the lateral direction of the vehicle frame fixture. This allows angle adjustment to be achieved via the angle adjustment device.

[0029] In some embodiments, the angle adjustment device is configured as a wedge-shaped pad.

[0030] In some embodiments, the angle adjustment device is arranged between the connection structure of the fixed bracket and the mating connection structure within the vehicle frame fixture.

[0031] In some embodiments, the side impact simulation system further includes a height adjustment device for adjusting the height of the head rebound simulator in the vertical direction. The head rebound simulator can be adjusted vertically, either steplessly or in stages, via the height adjustment device to simulate different sitting heights of the occupant on the impact side. This allows for the simulation of different sitting heights of the occupant on the impact side.

[0032] The technical features mentioned above, those to be mentioned below, and those shown individually in the accompanying drawings can be combined arbitrarily, provided that the combined technical features are not contradictory. All feasible combinations of features are the technical content explicitly described herein. Any one of the multiple sub-features contained in the same statement can be applied independently, without necessarily being applied together with other sub-features. Attached Figure Description

[0033] The present disclosure will be further described below with reference to the illustrative drawings and exemplary embodiments. Wherein:

[0034] Figures 1 to 6 A schematic diagram of a prior art side-impact simulation system and experimental procedure for conducting a side-impact dual-occupant slide test is shown.

[0035] Figures 7 to 10 A schematic diagram illustrating a side-impact simulation system and experimental procedure according to some embodiments of the present disclosure is shown;

[0036] Figure 11 A schematic diagram of a side-impact simulation system with wedge-shaped pads is shown as one embodiment.

[0037] Figure 12 A schematic perspective view of a head rebound simulation device according to some embodiments of the present disclosure is shown.

[0038] Figure 13 Show Figure 12 Side view and exploded view of the head rebound simulation device;

[0039] Figure 14 A schematic cross-sectional view of a head rebound simulation device with a dummy head according to one embodiment of the present disclosure is shown. Detailed Implementation

[0040] like Figures 7 to 10 The diagram illustrates a side impact simulation system 100 and an experimental procedure according to some embodiments of the present disclosure. The side impact simulation system 100 includes a vehicle frame clamp 10, in which a distal airbag 11 is disposed. For clarity, the distal airbag 11 is shown only schematically in this disclosure; those skilled in the art will readily understand that the distal airbag 11 can be triggered and deployed under a certain lateral acceleration. Furthermore, the side impact simulation system 100 also includes a head rebound simulation device 20. The head rebound simulation device 20 is disposed within the vehicle frame clamp 10. The head rebound simulation device 20 is configured to simulate the rebound of an occupant's head on the impact side during a side impact and thereby simulate the impact of the occupant's head on the distal airbag 11. The head rebound simulation device 20 includes an acceleration device 21 for generating acceleration to simulate the impact force exerted on the distal airbag 11 by the occupant's head on the impact side during a side impact. In addition, the side impact simulation system 100 includes a slide rail 30 on which the vehicle frame clamp 10 can slide; and a power source configured to push the vehicle frame clamp 10 to slide on the slide rail 30. The power source may be configured as a hydraulic piston 40 and includes a hydraulic piston rod 41 for contacting and pushing the vehicle frame clamp 10.

[0041] In side-impact collisions, "remote airbag 11" typically refers to an airbag installed inside the vehicle to protect occupants during a side impact. In a side-impact collision, the side where the point of impact is located is called the proximal side or the impact side, while the side opposite the point of impact is called the distal side or the non-impact side. A remote airbag with remote airbag 11 is typically installed as a front center airbag on the driver's seat, for example, on the inside of the seatback. In the industry, remote airbag 11 can also be referred to as a center airbag. Alternatively, it is conceivable that a remote airbag with remote airbag 11 could be positioned in the central space between the driver's and passenger's seats, such as in the center console area.

[0042] like Figures 7 to 10As shown, only a single non-collision-side dummy 50 simulating the behavior of a non-collision-side occupant in a side impact is arranged in the vehicle frame clamp 10. A head rebound simulator 20 is arranged within the vehicle frame clamp 10 at the side of the collision side. The launch direction of the acceleration device 21 of the head rebound simulator 20 is directed towards the position to be occupied by the deployed distal airbag 11. In particular, as shown, the launch direction of the acceleration device 21 is parallel to the lateral direction of the vehicle frame clamp 10.

[0043] To simulate different occupant seating heights, in an embodiment not shown, the side impact simulation system 100 may further include a height adjustment device for adjusting the vertical height of the head rebound simulation device 20. The head rebound simulation device 20 can be adjusted vertically via the height adjustment device in a stepless or stepped manner to simulate different seating heights of the occupant on the impact side. In the case of stepless adjustment, the head rebound simulation device 20 can be moved up and down along a moving track, for example, by a servo motor. In the case of stepped adjustment, the head rebound simulation device 20 can be fixed, for example, to a vertically oriented bracket, on which corresponding holes can be provided at different height positions. The head rebound simulation device 20 can be positioned at these holes at different heights as needed.

[0044] The operation flow of a side-impact simulation system 100 according to some embodiments of the present disclosure is then described. For example... Figure 8 As shown, after the experiment begins, the piston rod 41, which is the power source of the hydraulic piston 40, directly contacts the vehicle frame clamp 10 to push the vehicle frame clamp 10 to accelerate along the slide rail 30, and then... Figure 9 As shown, piston rod 41 continuously pushes the vehicle frame clamp 10 to accelerate. During this period, the remote airbag 11 is triggered and deployed. Then as... Figure 10 As shown, the acceleration device 21 in the head rebound simulation device 20 is triggered at a set time point (the second time point mentioned below) to simulate head rebound. The acceleration device 21 will experience a certain idle travel time after being triggered before hitting the distal airbag 11.

[0045] like Figure 11 As shown, the firing direction of the acceleration device 21 can also be at an angle to the lateral direction of the vehicle frame clamp 10. Therefore, an angle adjustment device can be arranged between the head rebound simulation device 20 and the mating connection structure within the vehicle frame clamp 10 for fixing the head rebound simulation device 20, to adjust the angle between the firing direction of the acceleration device 21 and the lateral direction of the vehicle frame clamp 10. The angle adjustment device can be constructed as a wedge-shaped pad 60.

[0046] Refer to the following Figures 12 to 14The structure of the head rebound simulation device 20 according to some embodiments of the present disclosure is described in detail.

[0047] like Figures 12 to 14 As shown, the head rebound simulation device 20 according to this disclosure includes: an acceleration device 21 configured to generate acceleration to simulate the impact force exerted on the distal airbag 11 by the occupant's head on the impact side during a side collision; and a frame 22 in which the acceleration device 21 is received. The acceleration device 21 can be configured as a power-accelerating device, comprising a power-accelerating impact device for storing energy and generating an impact upon release, and a holding and releasing device for holding the power-accelerating impact device in a ready-to-release state and releasing the power-accelerating impact device. In particular, in Figures 12 to 14 In the example shown, the energy storage impact device includes a piston 211 and a spring 212, the spring 212 being sleeved on the piston rod 211b of the piston 211. The holding and releasing device includes an electromagnet 213, which, when energized, attracts the end 211c of the piston 211 facing the electromagnet 213 and compresses the spring 212 via the piston head 211a, and releases the spring 212 when de-energized, thus ejecting the piston 211 by the spring 212. Figure 14 As shown, to accommodate the spring 212 and the piston 211, the frame 22 includes a piston-spring receiving portion 221, or a large opening, for receiving the piston 211 and the spring 212. The piston 211 and the spring 212 are at least partially received within the piston-spring receiving portion 221, and one end of the spring 212 rests against the bottom of the piston-spring receiving portion 221. A through hole 222, or a small opening, is provided in the bottom of the piston-spring receiving portion 221 for the piston rod 211b of the piston 211 to pass through. In particular, the end 211c of the piston 211 facing the electromagnet 213 can be constructed in a disc shape. When the electromagnet 213 is energized and thereby attracts the piston 211, the attracted end 211c of the piston 211 moves the piston head 211a together, thereby compressing the spring 212 and thus generating stored force. After the electromagnet 213 is de-energized, the spring 212 is released and, with the aid of its restoring force or counter-thrust, the piston 211 moves toward the distal airbag 11, thereby generating a velocity or acceleration toward the distal airbag 11.

[0048] A dummy head 70 is arranged on the piston head 211a of the piston 211, which is oriented towards the airbag, to produce a better simulation effect. In addition, in order to simulate different sizes of heads, the dummy head 70 is selected from the following dummy head series: adult male dummy head, adult female dummy head, and adolescent dummy head.

[0049] To secure the head rebound simulator 20 within the vehicle frame fixture 10, the head rebound simulator 20 further includes a fixing bracket 23 for fixing the frame 22 with the acceleration device 21 within the vehicle frame fixture 10. A portion of the fixing bracket 23 is connected to the frame 22, and another portion of the fixing bracket 23 is provided with a connecting structure 231 for connecting to a mating connecting structure within the vehicle frame fixture 10. The connecting structure 231 of the fixing bracket 23 can be configured as at least one mounting hole. The portion of the fixing bracket 23 connected to the frame 22 is connected to the side of the frame 22. As shown, the fixing bracket 23 is L-shaped. To reinforce the fixing bracket 23, it also has a reinforcing web 232.

[0050] It should be noted that the terminology used herein is for illustrative purposes only and is not intended to limit the disclosure. The singular forms “a” and “the one” as used herein should include the plural forms unless the context explicitly states otherwise. It is understood that the terms “comprising” and “including,” and other similar terms, when used in the application documents, specifically describe the presence of the stated operation, element, and / or component, without excluding the presence or addition of one or more other operations, elements, components, and / or combinations thereof. The term “and / or” as used herein includes all arbitrary combinations of one or more of the associated listed items. In the description of the drawings, similar reference numerals always denote similar elements.

[0051] The thickness of the elements in the accompanying drawings may be exaggerated for clarity. It is also understood that if an element is described as being on, coupled to, or connected to another element, then the element may be directly formed on, coupled to, or connected to the other element, or there may be one or more intermediate elements between them. Conversely, if the expressions "directly on," "directly coupled to," and "directly connected to" are used herein, it indicates that there is no intermediate element. Other terms used to describe relationships between elements should be interpreted similarly, such as "between" and "directly between," "attached" and "directly attached," "adjacent" and "directly adjacent," etc.

[0052] Terms such as “top,” “bottom,” “above,” “below,” “over,” “under,” etc., are used to describe the relationship of one element, layer, or region relative to another element, layer, or region, as shown in the accompanying drawings. It is understood that these terms should also encompass other orientations of the device in addition to those described in the accompanying drawings.

[0053] It is understood that although the terms "first," "second," etc., may be used herein to describe different elements, these elements should not be limited by these terms. These terms are merely used to distinguish one element from another. Thus, a first element may be referred to as a second element without departing from the teachings of this disclosure.

[0054] It can also be considered that all the exemplary embodiments disclosed herein can be arbitrarily combined with each other. Furthermore, all individual technical features in this application can be arbitrarily combined with each other, as long as the combined technical features are not contradictory. All technically feasible combinations of features are the technical content described in this application.

[0055] Finally, it should be noted that the above embodiments are merely for understanding this disclosure and do not constitute a limitation on the scope of protection of this disclosure. Those skilled in the art can make modifications based on the above embodiments, and these modifications will not depart from the scope of protection of this disclosure.

Claims

1. A head rebound simulation device, characterized in that, The head rebound simulator (20) is configured to simulate the rebound of the occupant's head on the impact side during a side impact and thereby simulate the impact of the occupant's head on the distal airbag on the impact side. The head rebound simulator can be arranged within the vehicle frame fixture of a side impact simulation system for simulating side impacts. The head rebound simulator includes: - An acceleration device (21), configured to generate acceleration to simulate the impact force exerted on the distal airbag by the occupant's head on the side of the collision during a side impact; and - Frame (22), in which the acceleration device is housed.

2. The head rebound simulation device according to claim 1, characterized in that, The acceleration device is configured as a power storage acceleration device, which includes a power storage impact device for storing energy and generating an impact upon release, and a holding and releasing device for keeping the power storage impact device in a ready-to-release state and for releasing the power storage impact device; and / or The energy storage impact device includes a piston (211) and a spring (212), the spring being sleeved on the piston rod (211b) of the piston; and / or The holding and releasing device includes an electromagnet (213) capable of attracting the energy storage impact device when energized and releasing the energy storage impact device when de-energized; and / or The holding and releasing device includes an electromagnet capable of attracting the end of the piston facing the electromagnet when energized and compressing a spring via the piston head, and releasing the spring when de-energized to eject the piston by the spring; and / or The end of the piston facing the electromagnet (211c) includes a disc-shaped portion or is configured as a disc; and / or The frame includes a piston-spring receiving portion (221) for receiving a piston and a spring, the piston and spring being at least partially received within the piston-spring receiving portion, with one end of the spring abutting against the bottom of the piston-spring receiving portion; and / or A through hole (222) is provided in the bottom of the piston-spring receiving part for the piston rod to pass through; and / or A dummy head (70) is arranged on the airbag-facing end of the acceleration device; and / or A dummy head is arranged on the piston head (211a) of the piston, which is oriented towards the airbag; and / or The dummy head is selected from the following dummy head series: adult male dummy head, adult female dummy head, and adolescent dummy head.

3. The head rebound simulation device according to claim 1 or 2, characterized in that, The head rebound simulation device further includes a fixing bracket (23) for fixing the frame with the acceleration device within the vehicle frame fixture. A portion of the fixing bracket is connected to the frame, and another portion of the fixing bracket is provided with a connecting structure for connecting to a mating connecting structure within the vehicle frame fixture; and / or The fixing bracket has at least one of the following characteristics: The fixing bracket is configured in an L-shape; The portion of the fixed bracket that is connected to the frame is connected to the side of the frame; The fixed bracket has a reinforcing web (232); The connection structure (231) of the fixed bracket is configured to have at least one mounting hole.

4. A side-impact simulation system, characterized in that, The side-impact simulation system (100) includes: A vehicle frame fixture (10) is provided with a distal airbag (11). The head rebound simulation device (20) according to any one of claims 1 to 3 is arranged inside the vehicle frame fixture; The slide rail (30) allows the vehicle frame clamp to slide on the slide rail; and A power source configured to propel the vehicle frame clamp onto a slide rail.

5. The side-impact simulation system according to claim 4, characterized in that, Only one non-collision side dummy is arranged in the vehicle frame fixture to simulate the behavior of a non-collision side occupant in a side collision.

6. The side-impact simulation system according to claim 4, characterized in that, The head rebound simulation device is arranged inside the vehicle frame fixture at the side of the collision side of the vehicle frame fixture.

7. The side-impact simulation system according to claim 4, characterized in that, The firing direction of the acceleration device (21) of the head rebound simulation device is directed toward the position to be occupied by the deployed distal airbag; and / or The firing direction of the acceleration device is parallel to the lateral direction of the vehicle frame clamp; and / or The launch direction of the acceleration device is at an angle to the lateral direction of the vehicle frame clamp; and / or An angle adjustment device is arranged between the head rebound simulation device and the mating connection structure in the body frame fixture for fixing the head rebound simulation device, for adjusting the angle between the launch direction of the acceleration device and the lateral direction of the body frame fixture. and / or The included angle adjustment device is constructed as a wedge-shaped pad (60); and / or The angle adjustment device is arranged between the connecting structure of the fixed bracket and the mating connecting structure in the body frame fixture.

8. The side-impact simulation system according to claim 4, characterized in that, The side impact simulation system also includes a height adjustment device for adjusting the height of the head rebound simulation device in the vertical direction. The head rebound simulation device can be adjusted in the vertical direction steplessly or in stages via the height adjustment device to simulate different sitting heights of the occupant on the impact side.

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