A recoil type automobile collision simulation test device and control method
Patent Information
- Application Number
- CN202610965586.8
- Authority / Receiving Office
- CN · China
- Patent Type
- Applications(China)
- Current Assignee / Owner
- Filing Date
- 2026-06-30
- Publication Date
- 2026-09-25
AI Technical Summary
例如：使用滑车搭载试验车体进行碰撞模拟；设置模块化缓冲单元代替试验车体模拟加速波形和车辆姿态变化；模拟碰撞信号，使用电子模拟的方式模拟车辆碰撞；使用钢链牵引试验车，模拟驻车机构碰撞等，但都无法很好地模拟各种行车场景下车辆被碰撞后的动力学行为
[0014]本发明提供的反冲式汽车碰撞模拟试验装置通过固定于工装架体上的反作用式脉冲动力装置为台车施加第一方向的脉冲力，安装于台车尾部时能够有效模拟后车碰撞或追尾造成车辆横摆失控的行车场景，使用时对台车基本没有损伤，不使用时则不会影响台车正常驾驶。本发明通过驱动装置通过驱动第二介质仓内的介质，进一步驱动第一介质仓内的工作介质喷出，形成气-液串联驱动，可产生的冲击力强，相较于单独使用传统的空气炮和液压炮，工作更稳定。
Smart Images
Figure CN122814218A_ABST
Abstract
Description
Technical Field
[0001] This invention relates to the field of automobile collision simulation testing technology, and in particular to a recoil-type automobile collision simulation testing device and control method. Background Technology
[0002] Traditional real-vehicle crash tests use real vehicles to impact fixed structures to verify the structural strength of vehicles, but they also have some significant drawbacks, such as: the test process itself destroys the vehicle, which is costly; it may cause fires, explosions or other secondary accidents, resulting in a low safety factor; the results are greatly affected by environmental factors (such as temperature and humidity), and it is difficult to accurately control collision parameters (such as speed and angle), resulting in poor data consistency; and it cannot flexibly simulate diverse collision and vehicle loss-of-control scenarios.
[0003] To overcome these shortcomings, the industry has developed various collision simulation test schemes. For example, using a sled to carry the test vehicle body for collision simulation; setting up modular buffer units to replace the test vehicle body to simulate acceleration waveforms and vehicle attitude changes; simulating collision signals and using electronic simulation to simulate vehicle collisions; using steel chains to tow the test vehicle to simulate parking mechanism collisions, etc. However, none of these methods can accurately simulate the dynamic behavior of vehicles after being collided under various driving scenarios. Summary of the Invention
[0004] The present invention provides a recoil-type car collision simulation test device, which includes a tooling frame and a reaction pulse power device. The reaction pulse power device is mounted and fixed on the tooling frame. The tooling frame can be connected and fixed relative to a trolley. The reaction pulse power device is used to apply a pulse force in a first direction to the tooling frame. The pulse force is transmitted to the trolley through the tooling frame.
[0005] Furthermore, the reaction-type pulse power device can spray the working medium in the second direction, thereby applying a pulse force in the first direction to the tooling frame, the first direction being opposite to the second direction.
[0006] Furthermore, the reaction-type pulse power device includes a drive device and a first medium chamber. The first medium chamber is connected to the drive device. The first medium chamber is used to contain the working medium. The drive device is used to input momentum to the working medium in the first medium chamber, thereby causing the first medium chamber to eject the working medium in a second direction.
[0007] Furthermore, the first medium chamber is a liquid chamber, and the working medium is liquid.
[0008] Furthermore, the first medium chamber is also provided with a baffle device, which can change from a first state of blocking the first medium chamber to a second state of not blocking the first medium chamber.
[0009] Furthermore, the baffle device includes a servo motor and a sliding baffle, the servo motor and the sliding baffle are connected by a transmission, and the sliding baffle can switch between a first posture that blocks the first medium chamber and a second posture that does not block the first medium chamber under the drive of the servo motor.
[0010] Furthermore, the driving device includes a valve body and a second medium chamber, the second medium chamber being used to contain the driving medium, and the valve body being used to control the connection and disconnection between the second medium chamber and the first medium chamber.
[0011] Furthermore, the second medium chamber is a gas chamber, the driving medium is gas, and a gas source system is connected to the second medium chamber. The gas source system can access the second medium chamber and input high-pressure gas into the second medium chamber or pressurize the gas in the second medium chamber.
[0012] Furthermore, the tooling frame includes a main frame, a connecting part, and an anti-tilt bar. The reaction pulse power device is installed and fixed on the main frame. One end of the connecting part is detachably rigidly connected to the rear of the trolley, and the other end of the connecting part is integrally installed and fixed to the main frame. The anti-tilt bar is installed and fixed on the main frame and extends in a direction parallel to the first direction. The anti-tilt bar is used to prevent the main frame from tipping over when the trolley moves.
[0013] Furthermore, the present invention also includes a control method for a recoil-type vehicle collision simulation test device, which is used to control the aforementioned recoil-type vehicle collision simulation test device, comprising the following steps: controlling the valve body to disconnect the first medium chamber and the second medium chamber, detecting and confirming that there is sufficient working medium in the first medium chamber and that the second medium chamber has been filled with high-pressure working medium. The control valve body connects the first medium chamber and the second medium chamber, so that the working medium in the first medium chamber is ejected in the form of a high-speed jet along the second direction, forming a pulse force in the first direction on the tooling frame, so that the pulse force is applied to the trolley through the tooling frame; To obtain experimental data on the dynamic behavior of the trolley.
[0014] The recoil-type car collision simulation test device provided by this invention applies a pulse force in a first direction to the trolley through a reaction-type pulse power device fixed on a tooling frame. When installed at the rear of the trolley, it can effectively simulate driving scenarios where a rear-end collision or rear-end collision causes the vehicle to yaw and lose control. It causes minimal damage to the trolley during use and does not affect the trolley's normal operation when not in use. This invention uses a drive device to drive the medium in the second medium chamber, which in turn drives the working medium in the first medium chamber to spray out, forming a gas-liquid series drive. This generates a strong impact force and is more stable than using traditional air cannons and hydraulic cannons alone. Attached Figure Description
[0015] Figure 1 This is a schematic diagram of the recoil-type car collision simulation test device provided by the present invention.
[0016] In the diagram: 1. Tooling frame; 11. Main frame; 12. Connecting part; 13. Anti-tilt bar; 131. Caster; 2. Reaction pulse power device; 21. Drive device; 211. Valve body; 212. Second medium chamber; 22. First medium chamber; 221. Water inlet; 3. Baffle device; 31. Servo motor; 32. Sliding baffle; 33. Tie rod. Detailed Implementation
[0017] To further illustrate the technical means and effects adopted by the present invention in order to achieve the intended purpose, the present invention will be described in detail below with reference to the accompanying drawings and preferred embodiments.
[0018] It should be noted that the terms "first," "second," "third," "fourth," etc., in the specification and claims of this invention are used to distinguish similar objects and are not necessarily used to describe a specific order or sequence.
[0019] In this manual, the directional terms "X-direction," "Y-direction," and "Z-direction" refer to the "vehicle X-direction," "vehicle Y-direction," and "vehicle Z-direction" commonly used in the automotive industry, respectively. "Vehicle X-direction" refers to the length of the vehicle body, which is also the front-to-back direction; "Vehicle Y-direction" refers to the width of the vehicle body, which is also the left-to-right direction; and "Vehicle Z-direction" refers to the height of the vehicle body, which is also the up-and-down direction.
[0020] Please see Figure 1The recoil-type car collision simulation test device provided by the present invention includes a tooling frame 1 and a reaction pulse power device 2. The reaction pulse power device 2 is installed and fixed on the tooling frame 1. The tooling frame 1 can be connected and fixed relative to the trolley. The reaction pulse power device 2 is used to apply a pulse force in a first direction to the tooling frame 1. The pulse force is transmitted to the trolley through the tooling frame 1. Specifically, in one embodiment of the present invention, the reaction-type pulse power device 2 can spray a working medium in a second direction, thereby applying a pulse force in a first direction to the tooling frame 1. The first and second directions are opposite; that is, if the second direction is the negative direction of the Y-axis (towards the right of the vehicle), then the first direction is the positive direction of the Y-axis (towards the left of the vehicle). The tooling frame 1 is installed at the rear of the trolley, corresponding to the reaction-type pulse power device 2 being located behind the trolley in the Z-direction. When the reaction-type pulse power device 2 applies a pulse force in the first direction to the tooling frame 1, the pulse force will be transmitted to the rear of the trolley, simulating a scenario where the rear of a car encounters a collision and experiences a sudden impact, such as a collision, a rear-end collision, or loss of control. Furthermore, the working medium in the present invention is preferably water, which is not easily compressed under normal conditions and is easily sprayed out in the form of a high-speed jet. It is easily understood that the recoil-type car collision simulation test device of the present invention can also be installed on the side or front of the trolley to simulate the common scenario where the side or front of the trolley experiences a sudden impact, and can be selected according to actual needs. The present invention applies a pulse force in the first direction to the trolley by means of a reaction pulse power device 2 fixed on the tooling frame 1. When installed at the rear of the trolley, it can effectively simulate the driving scenario of the vehicle swaying and losing control due to a rear-end collision or rear-end collision. It causes basically no damage to the trolley when in use, and does not affect the normal driving of the trolley when not in use.
[0021] Furthermore, the reaction-type pulse power device 2 of the present invention includes a driving device 21 and a first medium chamber 22. The driving device 21 is used to input momentum into the working medium in the first medium chamber 22, thereby causing the first medium chamber 22 to spray the working medium in a second direction. That is, the driving device 21 can drive the working medium in the first medium chamber 22 to spray in a second direction to form a pulse force towards the first direction. The working medium can play the role of momentum transfer. Specifically, in one embodiment of the present invention, the first medium chamber 22 is a cylindrical liquid chamber that can contain the working medium, such as water. When the water in the liquid chamber is subjected to the impact from the driving device 21, it can be naturally sprayed out, completing the momentum transfer and forming a pulse force. Generally speaking, the larger the mass of the sprayed liquid, the greater the impact force generated. The liquid chamber is provided with an inlet 221 for filling the working medium on the barrel wall. One end of the first medium chamber 22 is connected to the driving device 21, and the other end of the first medium chamber 22 is provided with a baffle device 3. The baffle device 3 can change from a first posture of blocking the first medium chamber 22 to a second posture of not blocking the first medium chamber 22. In a straightforward manner, the baffle device 3 functions as a door, blocking the first medium chamber 22 in a first posture when the reaction pulse power device 2 in this invention is not working or when water is added, so that the first medium chamber 22 can store the working medium normally. When the baffle device 3 changes to a second posture, the first medium chamber 22 is opened to the external environment.
[0022] Furthermore, the baffle device 3 in this invention includes a servo motor 31 and a sliding baffle 32. The servo motor 31 is connected to the sliding baffle 32 in a transmission manner. The sliding baffle 32 is located at the end of the first medium chamber 22 away from the driving device 21. The sliding baffle 32 can switch between a first posture of blocking the first medium chamber 22 and a second posture of not blocking the first medium chamber 22 under the drive of the servo motor 31. Specifically, in one embodiment of this invention, the baffle device 3 also includes a pull rod 33. The two ends of the pull rod 33 are respectively connected to the servo motor 31 and the sliding baffle 32 as a whole. That is, the servo motor 31, the pull rod 33 and the sliding baffle 32 are connected as a whole and form a transmission connection. When the servo motor 31 receives a command, it can drive the pull rod 33, and the pull rod 33 will then drive the sliding baffle 32 to move. The baffle device 3 configured in this way can receive a signal after the collision simulation experiment and switch from the second posture to the first posture, thereby restoring the blockage of the liquid chamber and making it sealed again, so that workers can add water to the liquid chamber and reuse it. This invention uses a servo motor 31 and a sliding baffle 32 to control whether the first medium chamber 22 is connected to the external environment. Combined with a drive device 21, it can spray the working medium in a second direction. The control logic is simple and easy to use. In particular, in some embodiments of this invention, the baffle device 3 can also be configured as a device that can withstand a small hydraulic pressure and remain sealed under normal conditions (corresponding to the first posture), but breaks under a large hydraulic pressure (corresponding to the second posture), such as a bursting plate or a rupture plate. Before use, it can usually be directly installed on the first medium chamber 22, and can be replaced as needed after use. The baffle device 3 configured in this way does not have the function of electrically controlling posture switching, but it also does not require additional configuration of servo motor 31 or other related electrical components. The structure is relatively simple and can be selected according to actual needs.
[0023] Further, the driving device 21 in this invention includes a valve body 211 and a second medium chamber 212. The second medium chamber 212 is used to contain the driving medium, and the valve body 211 is used to control the connection and disconnection between the second medium chamber 212 and the first medium chamber 22. Specifically, in one embodiment of this invention, the driving device 21 is an air cannon that can compress air. Correspondingly, the second medium chamber 212 is a spherical gas chamber that can contain the driving medium, such as air. The air cannon can spray air instantaneously into the first medium chamber 22, thereby inputting momentum into the working medium inside the first medium chamber 22. The valve body 211 is a solenoid valve installed on the second medium chamber 212. The solenoid valve can open the first medium chamber 22 and the second medium chamber 212 when it receives a corresponding command. That is, the solenoid valve can control the connection and disconnection between the first medium chamber 22 and the second medium chamber 212. The driving device 21 also includes an air source system that can be connected to the second medium chamber 212 from the outside and input high-pressure gas into the second medium chamber 212 or pressurize the gas inside the second medium chamber 212. Specifically, in some embodiments of the present invention, a buffer chamber is also provided inside the valve body 211. This buffer chamber can briefly contain the compressed air ejected from the second medium chamber 212 when the first medium chamber 22 and the second medium chamber 212 are connected, and push the working medium during the transition of the baffle device 3 from the first posture to the second posture, thus acting as a damper. The present invention, through the driving device 21, drives the medium in the second medium chamber 212 to further drive the working medium in the first medium chamber 22 to be ejected, forming a gas-liquid series drive. This generates a strong impact force and is more stable in operation compared to using traditional air cannons and hydraulic cannons alone.
[0024] Furthermore, the tooling frame 1 in this invention includes a main frame 11, a connecting part 12, and an anti-tilt bar 13. The reaction pulse power device 2 is installed and fixed on the main frame 11. One end of the connecting part 12 is detachably rigidly connected to the trolley, and the other end of the connecting part 12 is installed and fixed as a whole with the main frame 11. When the trolley moves, the connecting part 12 moves with the trolley. The anti-tilt bar 13 is set on the side of the main frame 11 away from the trolley to prevent the main frame 11 from overturning or tipping over when it moves with the trolley. Specifically, in one embodiment of the present invention, two connecting parts 12 are symmetrically arranged in the middle of the main frame 11. The end of the connecting part 12 facing the trolley is provided with bolt holes for screwing with the trolley. Two anti-tilt rods 13 are provided on the side of the main frame 11 away from the trolley. The two anti-tilt rods 13 extend outward from the main frame 11 along the first direction and the second direction, respectively. The total length of the two anti-tilt rods 13 is greater than the length of the reaction pulse power device 2. One end of the anti-tilt rod 13 is rigidly connected to the middle of the main frame 11. The other end of the anti-tilt rod 13 is provided with a caster 131 for contacting the ground of the test environment. The anti-tilt rods 13 arranged in this way can make the tooling frame 1 have a long lever arm, which can prevent the trolley from tipping over when subjected to instantaneous impact to the maximum extent. For example, when the tooling frame 1 is installed at the rear of the trolley, the two anti-tilt rods 13 extend to the left and right from the rear of the trolley, respectively.
[0025] Furthermore, the present invention also includes a control method for a recoil-type vehicle collision simulation test device, which is used to control the aforementioned recoil-type vehicle collision simulation test device, comprising the following steps: Step S1: Preparation Stage The control valve body 211 disconnects the connection between the first medium chamber 22 and the second medium chamber 212; The system detects and confirms that the second medium chamber 212 is filled with high-pressure working medium. If not, it controls the air supply system to fill the second medium chamber 212 with high-pressure driving medium. If the second medium chamber 212 is filled with working medium with insufficient pressure, it pressurizes the driving medium in the second medium chamber 212. If the driving medium is air, the ideal pressure in the second medium chamber 212 is 0.6–0.8 MPa. Ensure that the baffle device 3 is in the first position of blocking the first medium chamber 22; The system detects and confirms that there is sufficient working medium in the first medium 22 chamber. If not, it fills the first medium 22 chamber with sufficient working medium through the inlet 221.
[0026] Step S2: Triggering Phase The control valve body 211 connects the first medium chamber 22 and the second medium chamber 212. If the valve body 211 is a solenoid valve, the high-pressure driving medium enters the buffer chamber of the valve body 211. When the control baffle device 3 changes from the first posture to the second posture, if the baffle device 3 is a combination of servo motor 31, pull rod 33 and sliding baffle 32, then control servo motor 31 to pull pull rod 33 at a preset speed, and pull rod 33 drives sliding baffle 32 to move until the first medium chamber 22 is fully opened.
[0027] Step S3: Impact Phase High-pressure driving medium is ejected from the second medium chamber 212, which pushes the working medium in the first medium chamber 22 to be ejected in the form of a high-speed jet along the second direction, forming a pulse force in the first direction on the tooling frame 1, so that the pulse force is applied to the trolley through the tooling frame 1, thereby obtaining experimental data on the dynamic behavior of the trolley.
[0028] Step S4: Reset Phase The control valve body 211 disconnects the connection between the first medium chamber 22 and the second medium chamber 212, thereby depressurizing and resetting the drive device 21 to avoid pressure fluctuations in the first medium chamber 22.
[0029] When the control baffle device 3 changes from the second posture to the first posture, if the baffle device 3 is a combination of servo motor 31, pull rod 33 and sliding baffle 32, then control servo motor 31 to pull pull rod 33 in the opposite direction, and pull rod 33 drives sliding baffle 32 to move until the first medium chamber 22 is completely blocked.
[0030] In summary, the recoil-type car collision simulation test device of this invention applies a pulse force in the first direction to the trolley through a reaction-type pulse power device fixed on the tooling frame. When installed at the rear of the trolley, it can effectively simulate driving scenarios where a rear-end collision or rear-end collision causes the vehicle to yaw and lose control. It causes minimal damage to the trolley during use and does not affect the normal driving of the trolley when not in use. This invention uses a drive device to drive the medium in the second medium chamber, which in turn drives the working medium in the first medium chamber to spray out, forming a gas-liquid series drive. This generates a strong impact force and is more stable than using traditional air cannons and hydraulic cannons alone.
[0031] The above are merely specific embodiments of the present invention, but the scope of protection of the present invention is not limited thereto. Any variations or substitutions that can be easily conceived by those skilled in the art within the technical scope disclosed in the present invention should be included within the scope of protection of the present invention. Therefore, the scope of protection of the present invention should be determined by the scope of the claims.
Claims
1. A recoil-type vehicle collision simulation test device, characterized in that: It includes a tooling frame (1) and a reaction pulse power device (2). The reaction pulse power device (2) is installed and fixed on the tooling frame (1). The tooling frame (1) can be connected and fixed relative to the trolley. The reaction pulse power device (2) is used to apply a pulse force in a first direction to the tooling frame (1). The pulse force is transmitted to the trolley through the tooling frame (1).
2. The recoil-type vehicle collision simulation test device as described in claim 1, characterized in that: The reaction-type pulse power device (2) can spray the working medium in the second direction, thereby applying a pulse force in the first direction to the tooling frame (1), the first direction being opposite to the second direction.
3. The recoil-type vehicle collision simulation test device as described in claim 1, characterized in that: The reaction pulse power device (2) includes a drive device (21) and a first medium chamber (22). The first medium chamber (22) is connected to the drive device (21). The first medium chamber (22) is used to contain the working medium. The drive device (21) is used to input momentum into the working medium in the first medium chamber (22), thereby causing the first medium chamber (22) to eject the working medium in a second direction.
4. The recoil-type car collision simulation test device as described in claim 3, characterized in that: The first medium chamber (22) is a liquid chamber, and the working medium is liquid.
5. The recoil-type vehicle collision simulation test device as described in claim 3, characterized in that: The first medium chamber (22) is also provided with a baffle device (3), which can change from a first posture of blocking the first medium chamber (22) to a second posture of not blocking the first medium chamber (22).
6. The recoil-type vehicle collision simulation test device as described in claim 5, characterized in that: The baffle device (3) includes a servo motor (31) and a sliding baffle (32). The servo motor (31) and the sliding baffle (32) are connected by a transmission. The sliding baffle (32) can switch between a first posture that blocks the first medium chamber (22) and a second posture that does not block the first medium chamber (22) under the drive of the servo motor (31).
7. The recoil-type vehicle collision simulation test device as described in claim 3, characterized in that: The drive device (21) includes a valve body (211) and a second medium chamber (212), the second medium chamber (212) being used to contain the drive medium, and the valve body (211) being used to control the connection and disconnection between the second medium chamber (212) and the first medium chamber (22).
8. The recoil-type vehicle collision simulation test device as described in claim 7, characterized in that: The second medium chamber (212) is a gas chamber, the driving medium is gas, and a gas source system is connected to the second medium chamber (212). The gas source system can access the second medium chamber (212) and input high-pressure gas into the second medium chamber (212) or pressurize the gas in the second medium chamber (212).
9. The recoil-type vehicle collision simulation test device as described in claim 1, characterized in that: The tooling frame (1) includes a main frame (11), a connecting part (12), and an anti-tilt bar (13). The reaction pulse power device (2) is installed and fixed on the main frame (11). One end of the connecting part (12) is detachably rigidly connected to the tail of the trolley. The other end of the connecting part (12) is installed and fixed as a whole with the main frame (11). The anti-tilt bar (13) is installed and fixed on the main frame (11) and extends in a direction parallel to the first direction. The anti-tilt bar (13) is used to prevent the main frame (11) from tipping over when the trolley moves.
10. A control method for a recoil-type vehicle collision simulation test device, characterized in that: It is used to control the recoil-type vehicle collision simulation test apparatus as described in any one of claims 1 to 9, and includes the following steps: The control valve body (211) disconnects the first medium chamber (22) and the second medium chamber (212), detects and confirms that there is sufficient working medium in the first medium chamber (22) and that the second medium chamber (212) is filled with high-pressure working medium; The control valve body (211) connects the first medium chamber (22) and the second medium chamber (212), so that the working medium in the first medium chamber (22) is ejected in the form of a high-speed jet along the second direction, forming a pulse force in the first direction on the tooling frame (1), so that the pulse force is applied to the trolley through the tooling frame (1); To obtain experimental data on the dynamic behavior of the trolley.