Airbag buffer protection test system for hovercar landing test

Abstract

The invention relates to an air bag buffer protection test system for an aerocar landing test. The air bag buffer protection test system for the hovercar landing test comprises a cabin, a seat, a plurality of buffer air bags, a detection mechanism and a controller, the seat is mounted in the cabin; the buffering air bag is installed on the bottom face of the cabin. The detection mechanism is mounted in the cabin and is used for detecting the distance between the cabin and the ground; and the controller sends an instruction to the buffer air bag according to data detected by the detection mechanism, so that the buffer air bag is expanded. According to the scheme provided by the invention, the dummy can be efficiently protected through the buffer air bag when the cabin lands.

Description

Technical Field

[0001] This application relates to the field of flight car safety testing technology, and in particular to a flight car landing test airbag cushioning protection test system. Background Technology

[0002] In emergency landing tests of flying cars, existing technologies mainly rely on "single passive protection" or "non-customized transplanted protection," without designing dedicated protection schemes for the strong impact characteristics of vertical falls. Existing devices mostly consist of conventional modified seats, standard three-point seat belts, and a cabin load-bearing frame. Some schemes transplant side and front airbags from ordinary cars (for side impact protection), but almost none include dedicated cushioning airbags for bottom vertical impacts. Seats only provide basic cushioning through thickened cushioning, lacking adaptive support structures. The seat cushion or foam padding alone cannot absorb the strong impact energy, resulting in excessive stress on the dummy's lower limbs and spine, leading to extremely poor protection. Summary of the Invention

[0003] To address or partially address the problems existing in related technologies, this application provides a flight car landing test airbag cushioning protection test system, which can effectively protect the dummy through cushioning airbags during cabin landing.

[0004] This application provides a test system for airbag cushioning protection during a flight vehicle landing test, comprising a cabin, a seat, multiple airbags, a detection mechanism, and a controller; the seat is installed inside the cabin; the airbags are installed on the bottom surface of the cabin; the detection mechanism is installed in the cabin and is used to detect the distance between the cabin and the ground; the controller sends commands to the airbags based on the data detected by the detection mechanism to inflate the airbags.

[0005] Furthermore, the seat includes a body and a backrest, the body is connected to the cabin, the backrest is connected to the upper surface of the body, the backrest extends upward from the body, and an inflatable cushion is provided inside the body.

[0006] Furthermore, the flying car landing test airbag cushioning protection test system also includes a tension adjustment mechanism, and the seat also includes a seat belt. The seat belt is connected to the main body and the backrest respectively. The tension adjustment mechanism is connected to the seat belt and is used to adjust the tension of the seat belt. The controller sends a command to the tension adjustment mechanism based on the data detected by the detection mechanism to adjust the tension of the seat belt.

[0007] Furthermore, the controller sends a command to the inflatable pad based on the data detected by the detection mechanism, so that the inflatable pad inflates.

[0008] Furthermore, when the detection mechanism detects that the distance between the cabin and the ground is 2.7~3.5m, the controller sends instructions to the buffer airbag and the inflatable cushion respectively, and the buffer airbag and the inflatable cushion inflate.

[0009] Furthermore, the cabin includes a floor and a frame, the floor is connected to the bottom end of the frame, the airbag is mounted on the floor, and the seat is connected to the frame.

[0010] Furthermore, the buffer airbag is provided with an exhaust port.

[0011] Furthermore, the detection mechanism includes a distance sensor and a data preprocessing module. The distance sensor is used to collect the cabin's ground clearance data in real time. The distance sensor and the data preprocessing module are communicatively connected. The data preprocessing module is used to reduce noise in the data collected by the distance sensor. The controller is communicatively connected to the data preprocessing module. The controller is used to parse the data output by the data preprocessing module and output control commands.

[0012] Furthermore, the detection mechanism also includes a speed sensor and a pressure sensor, the speed sensor being used to detect the speed of the cabin and the pressure sensor being used to detect the pressure of the seat.

[0013] Furthermore, multiple airbags are spaced apart on the bottom surface of the cabin along the length direction of the cabin, and multiple airbags are spaced apart on the bottom surface of the cabin along the width direction of the cabin.

[0014] The technical solution provided in this application may include the following beneficial results: by installing a buffer airbag on the bottom of the cabin, when the cabin falls, the controller can send a command to the buffer airbag according to the data detected by the detection agency, so that the buffer airbag will inflate and absorb the impact energy generated during landing, thereby reducing the impact on the dummy during landing and achieving protection for the dummy.

[0015] It should be understood that the above general description and the following detailed description are exemplary and explanatory only, and do not limit this application. Attached Figure Description

[0016] The above and other objects, features and advantages of this application will become more apparent from the more detailed description of exemplary embodiments thereof in conjunction with the accompanying drawings, wherein the same reference numerals generally represent the same components in the exemplary embodiments thereof.

[0017] Figure 1 This is a schematic diagram of the structure of the airbag buffer protection test system for a flying car landing test, as shown in the embodiments of this application; Figure 2 This is a schematic diagram of the bottom surface of the airbag buffer protection test system for a flying car landing test, as shown in an embodiment of this application.

[0018] Reference numerals: Cabin 1; Floor 11; Frame 12; Seat 2; Main body 21; Backrest 22; Airbag 3. Detailed Implementation

[0019] Embodiments of this application will now be described in more detail with reference to the accompanying drawings. While embodiments of this application are shown in the drawings, it should be understood that this application may be implemented in various forms and should not be limited to the embodiments set forth herein. Rather, these embodiments are provided to make this application more thorough and complete, and to fully convey the scope of this application to those skilled in the art.

[0020] It should be understood that although the terms "first," "second," "third," etc., may be used in this application to describe various information, this information should not be limited to these terms. These terms are only used to distinguish information of the same type from one another. For example, without departing from the scope of this application, first information may also be referred to as second information, and similarly, second information may also be referred to as first information. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of this application, "multiple" means two or more, unless otherwise explicitly specified.

[0021] In the description of this application, it should be understood that the terms "length", "width", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings, and are only for the convenience of describing this application and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this application.

[0022] Unless otherwise expressly specified and limited, the terms "installation," "connection," "linking," and "fixing," etc., should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral part; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; they can refer to the internal communication of two components or the interaction between two components. Those skilled in the art can understand the specific meaning of the above terms in this application according to the specific circumstances.

[0023] In related technologies, existing devices for emergency landing tests of flying cars mostly consist of conventional modified seats, standard three-point seat belts, and a cabin load-bearing frame. Some designs transplant side and front airbags from ordinary cars. The seats only achieve basic cushioning through thickened cushions, and the seat cushions or foam padding alone cannot absorb strong impact energy, resulting in excessive stress on the dummy's lower limbs and spine, and extremely poor protection. To address the above problems, this application provides a flying car landing test airbag cushioning protection system that can effectively protect the dummy through cushioning airbags during cabin landing.

[0024] The technical solutions of the embodiments of this application are described in detail below with reference to the accompanying drawings.

[0025] See Figure 1 and Figure 2 The flying car landing test airbag cushioning protection system includes a cabin 1, a seat 2, multiple airbags 3, a detection mechanism, and a controller. The seat 2 is installed inside the cabin 1 and houses the dummy required for the landing test. An injury data acquisition system is installed on the dummy to collect injury data. The airbags 3 are installed on the bottom of the cabin 1 and can be rapidly inflated. Before the landing test, the airbags 3 are in a contracted state. As the cabin 1 approaches landing, the airbags 3 rapidly inflate, replacing the cabin 1 in contact with the ground, thus cushioning the impact.

[0026] See Figure 1 and Figure 2 The detection mechanism is installed in cabin 1. It detects the distance between cabin 1 and the ground and sends the detected data to the controller. The controller then sends a command to the airbag 3 based on the data, causing the airbag 3 to inflate. The detection mechanism sends the detected data to the controller in real time. When the distance between cabin 1 and the ground reaches the set target value, the controller sends a command to the airbag 3. Upon receiving the command, the airbag 3 rapidly inflates, and cabin 1 and airbag 3 continue to descend until airbag 3 contacts the ground.

[0027] This application installs a buffer airbag 3 on the bottom surface of the cabin 1. When the cabin 1 falls, the controller can send a command to the buffer airbag 3 based on the data detected by the detection agency, thereby causing the buffer airbag 3 to inflate. The buffer airbag 3 absorbs the impact energy generated during landing, thereby reducing the impact on the dummy during landing and protecting the dummy.

[0028] See Figure 1The seat 2 includes a main body 21 and a backrest 22. The main body 21 is connected to the cabin 1, and the backrest 22 is connected to the upper surface of the main body 21, extending upward from the main body 21. A dummy can be placed on the main body 21 in a sitting position, with its back resting against the backrest 22. The main body 21 is either connected to the cabin 1 or can float up and down relative to the cabin 1. An inflatable cushion is provided inside the main body 21. When the cabin 1 lands, the inflatable cushion can cushion the dummy, thereby reducing the injury to the dummy. In some embodiments, the main body 21 includes a gradient cushioning pad and an elastic support mechanism. The elastic support mechanism is connected to the cabin 1 and the gradient cushioning pad respectively. A dummy can be placed on the gradient cushioning pad, and the inflatable cushion is located between the gradient cushioning pad and the cabin 1.

[0029] See Figure 1 and Figure 2 The airbag cushioning protection test system for the flying car landing test also includes a tension adjustment mechanism. Seat 2 also includes a seatbelt, which is connected to the main body 21 and the backrest 22. The tension adjustment mechanism is connected to the seatbelt and is used to adjust the tension of the seatbelt. The controller sends commands to the tension adjustment mechanism based on data detected by the detection mechanism to adjust the seatbelt tension. When the distance between the cabin 1 and the ground reaches the set target value, the controller sends a command to the tension adjustment mechanism. Upon receiving the command, the tension adjustment mechanism quickly tightens the seatbelt, thereby preventing the dummy from flying out of seat 2.

[0030] See Figure 1 and Figure 2 The controller sends commands to the inflatable cushion based on data detected by the testing agency, causing the cushion to inflate. When cabin 1 is about to land, the controller sends a command to the inflatable cushion, causing it to inflate rapidly. This allows the inflatable cushion to cushion the dummy during landing, reducing injury. When the testing agency detects that the distance between cabin 1 and the ground is 2.7-3.5m, the controller sends commands to both the cushioning airbag 3 and the inflatable cushion, causing them to inflate. The timing of the controller sending commands is controlled to be between 2.7-3.5m from the ground, facilitating landing tests and ensuring sufficient distance for the cushioning airbag 3 and the inflatable cushion to inflate. Preferably, the cushioning airbag 3 and the inflatable cushion inflate when the testing agency detects that the distance between cabin 1 and the ground is 3m.

[0031] See Figure 1 and Figure 2The cabin 1 includes a floor plate 11 and a frame 12. The frame 12 is made of lightweight, high-strength alloy. The floor plate 11 is connected to the bottom of the frame 12. The airbag 3 is installed on the bottom surface of the floor plate 11. The seat 2 is connected to the frame 12 and is located inside the frame 12, which protects the seat 2. The airbag 3 has an exhaust port. After the inflated airbag contacts the ground, some of the gas inside the airbag 3 can be released through the exhaust port, thereby dissipating some of the impact force from the ground and preventing the airbag from rebounding upwards with the cabin, reducing secondary injuries to the dummy.

[0032] See Figure 1 The detection mechanism includes a distance sensor and a data preprocessing module. The distance sensor is used to collect real-time data on the ground clearance of cabin 1. The distance sensor and the data preprocessing module are communicatively connected, and the data preprocessing module is used to reduce noise in the data collected by the distance sensor. The controller is also communicatively connected to the data preprocessing module. The controller is used to parse the data output by the data preprocessing module and output control commands. The controller includes a communication interface module, a data receiving and parsing module, a threshold judgment logic module, and a control command generation module.

[0033] See Figure 1 and Figure 2 After the distance sensor collects the ground clearance data of cabin 1 in real time, it can send the data to the data preprocessing module. The data preprocessing module filters and reduces noise on the data. Then, the data preprocessing module sends the processed data to the communication interface module via TCP / UDP protocol. The communication interface module encrypts and verifies the received data. Then, the communication interface module sends the data to the data receiving and parsing module. The data receiving and parsing module parses the data sent by the communication interface module. The data receiving and parsing module sends the parsed data to the threshold judgment logic module. The threshold judgment logic module determines whether the ground clearance of cabin 1 is less than 3m. If the ground clearance of cabin 1 is less than 3m, the threshold judgment logic module sends information to the control command generation module. The control command generation module generates control commands for the buffer airbag 3 and the inflation cushion, respectively, and sends the control commands to the corresponding buffer airbag 3 and inflation cushion. The buffer airbag 3 and inflation cushion then rapidly inflate.

[0034] See Figure 1 The testing mechanism also includes speed sensors and pressure sensors. The speed sensors are used to detect the speed of cabin 1, and the pressure sensors are used to detect the pressure of seat 2. During the cabin landing test, the staff can collect data on the speed change of the cabin during landing through the speed sensors and data on the pressure change of the cabin during landing through the pressure sensors.

[0035] See Figure 1 and Figure 2Multiple airbags 3 are spaced apart on the bottom surface of the cabin 1 along the length of the cabin 1, and multiple airbags 3 are spaced apart on the bottom surface of the cabin 1 along the width of the cabin 1. In some embodiments, there are six airbags 3, which are arranged in a rectangular shape, so that the cabin 1 can achieve a smooth landing.

[0036] See Figure 1 and Figure 2 During the test, the staff first set the trigger thresholds for the airbag 3 and the inflatable cushion using the controller, and adjusted the initial cushioning state of the seat 2. The cabin 1 was raised to a height of 3m, and then dropped from that height. The velocity sensor collected the vertical velocity and acceleration data of the cabin 1 in real time. The controller compared the real-time data with the preset thresholds, and when the triggering conditions were met, it immediately sent a signal to the airbag 3 and the inflatable cushion. The airbag 3 and the inflatable cushion rapidly inflated and deployed, absorbing more than 70% of the vertical impact energy. The elastic support mechanism compressed synchronously, and the seat belt dynamically adjusted its tension. The three worked together to restrain the dummy and prevent excessive displacement. The dummy injury value acquisition system accurately recorded the data without any additional structural interference. Through the coordinated protective design of the seat 2, the seat belt, and the airbag 3, and the intelligent dynamic triggering control based on real-time parameters, comprehensive and precise protection for the occupants was achieved in the emergency landing high-impact scenario. This significantly reduced the cost of the entire flying car drop test, while ensuring the accuracy and repeatability of the dummy injury value acquisition during the emergency landing, providing a reliable test platform for the safety performance evaluation of flying cars.

[0037] The solution of this application has been described in detail above with reference to the accompanying drawings. In the above embodiments, the descriptions of each embodiment have different focuses; for parts not described in detail in a certain embodiment, please refer to the relevant descriptions of other embodiments. Those skilled in the art should also understand that the actions and modules involved in the specification are not necessarily essential to this application. Furthermore, it is understood that the steps in the method of this application embodiment can be adjusted, combined, and deleted according to actual needs, and the modules in the device of this application embodiment can be combined, divided, and deleted according to actual needs.

[0038] The various embodiments of this application have been described above. These descriptions are exemplary and not exhaustive, nor are they limited to the disclosed embodiments. Many modifications and variations will be apparent to those skilled in the art without departing from the scope and spirit of the described embodiments. The terminology used herein is chosen to best explain the principles, practical application, or improvement of the technology in the market, or to enable others skilled in the art to understand the embodiments disclosed herein.

Claims

1. A test system for airbag cushioning protection in a flight car landing experiment, characterized in that, include: cabin; Seats, which are installed within the cabin; Multiple airbags are installed on the bottom surface of the cabin; A detection mechanism, installed in the cabin, is used to detect the distance between the cabin and the ground; A controller sends a command to the airbag based on the data detected by the detection mechanism, so that the airbag inflates.

2. The airbag cushioning protection test system for flight car landing tests according to claim 1, characterized in that: The seat includes a main body and a backrest. The main body is connected to the cabin, and the backrest is connected to the upper surface of the main body. The backrest extends upward from the main body, and an inflatable cushion is provided inside the main body.

3. The airbag cushioning protection test system for flight car landing tests according to claim 2, characterized in that: The seat also includes a tension adjustment mechanism and a seat belt. The seat belt is connected to the main body and the backrest respectively. The tension adjustment mechanism is connected to the seat belt and is used to adjust the tension of the seat belt. The controller sends a command to the tension adjustment mechanism based on the data detected by the detection mechanism to adjust the tension of the seat belt.

4. The airbag cushioning protection test system for flight car landing tests according to claim 2, characterized in that: The controller sends a command to the inflatable pad based on the data detected by the detection mechanism, so that the inflatable pad inflates.

5. The airbag cushioning protection test system for flight car landing tests according to claim 4, characterized in that: When the detection mechanism detects that the distance between the cabin and the ground is 2.7~3.5m, the controller sends commands to the airbag and the inflatable cushion respectively, and the airbag and the inflatable cushion inflate.

6. The airbag cushioning protection test system for flying car landing tests according to claim 1, characterized in that: The cabin includes a floor and a frame. The floor is connected to the bottom of the frame. The airbag is mounted on the floor, and the seat is connected to the frame.

7. The airbag cushioning protection test system for flight car landing tests according to claim 1, characterized in that: The airbag is equipped with an exhaust port.

8. The airbag cushioning protection test system for flight car landing tests according to claim 1, characterized in that: The detection mechanism includes a distance sensor and a data preprocessing module. The distance sensor is used to collect the cabin's ground clearance data in real time. The distance sensor and the data preprocessing module are communicatively connected. The data preprocessing module is used to reduce noise in the data collected by the distance sensor. The controller is communicatively connected to the data preprocessing module. The controller is used to parse the data output by the data preprocessing module and output control commands.

9. The airbag cushioning protection test system for flight car landing tests according to claim 8, characterized in that: The detection mechanism also includes a speed sensor and a pressure sensor, wherein the speed sensor is used to detect the speed of the cabin and the pressure sensor is used to detect the pressure of the seat.

10. The airbag cushioning protection test system for flight car landing tests according to claim 1, characterized in that: Multiple airbags are spaced apart on the bottom surface of the cabin along the length of the cabin, and multiple airbags are spaced apart on the bottom surface of the cabin along the width of the cabin.

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