Airbag control device and vehicle having the same

By setting up pressure chambers and sensors in the vehicle beam structure, real-time detection of air pressure changes and calculating acceleration changes, the problem of airbags not being able to explode during frontal cylindrical collisions is solved, ensuring the safety of the occupants and improving the ride experience.

CN117048547BActive Publication Date: 2025-07-18GUANGZHOU AUTOMOBILE GROUP CO LTD
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Patent Information

Application Number
CN202311155459.4
Authority / Receiving Office
CN · China
Patent Type
Patents(China)
Current Assignee / Owner
Filing Date
2023-09-07
Publication Date
2025-07-18
Estimated Expiration
2043-09-07

AI Technical Summary

Technical Problem

In the prior art, when a vehicle is cylindrical in the front, the energy-absorbing box is not deformed, causing the front bump sensor to not detect the collision signal, the airbag cannot explode normally, and it cannot effectively protect the safety of the occupants.

Method used

A sealed pressure chamber is set up in the beam structure of the vehicle, and the air pressure change is detected in real time through the pressure sensor, the acceleration change curve is calculated, and the airbag detonation is controlled when the curve passes through the preset threshold, expanding the collision detection range and ensuring the timely detonation of the airbag.

Benefits of technology

It realizes the precise and timely detonation of the airbag during any form of collision, effectively protecting the safety of the passengers and improving the ride experience.

✦ Generated by Eureka AI based on patent content.

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Abstract

The present invention discloses an airbag control device and a vehicle having the same, including a beam structure and an airbag assembly; the beam structure has a sealed pressure chamber; the airbag assembly includes a pressure sensor, a controller, and an airbag. The pressure sensor is used to obtain the air pressure value of the pressure chamber in real time and calculate the air pressure change value within any time period according to the air pressure value. The controller is used to obtain the air pressure change value and calculate the acceleration change curve within the current time period according to the air pressure change value. When the acceleration change curve crosses a preset acceleration threshold line, the controller controls the airbag to detonate. By detecting the air pressure change value during the vehicle collision period to calculate the acceleration change curve during the collision period and comparing the acceleration change curve with the preset acceleration threshold line, thereby controlling the airbag detonation method, the problem that the collision sensor installed on the energy absorber is prone to not detecting the collision signal is solved.
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Description

Technical Field

[0001] The present invention relates to the technical field of vehicles, and more particularly to an airbag control device and a vehicle having the same. Background Art

[0002] In the prior art, a vehicle collects collision signals through front collision sensors. The front collision sensors are generally arranged at the energy absorption boxes on both sides of the vehicle. When a vehicle collides, the energy absorption box will deform, and the front collision sensor will receive the collision signal therefrom. The front collision sensor will transmit the collision signal to the airbag ECU, and the airbag ECU will analyze the collision signal and judge the result of the analysis according to the detonation threshold line, so as to determine whether the airbag needs to be detonated. When a vehicle has a frontal column collision, the cavity of the front anti-collision beam will deform, but the energy absorption boxes on both sides will not deform, resulting in the front collision sensor being unable to receive the collision information, and further the airbag ECU being unable to receive the collision signal, which will cause the airbag to not be detonated normally, unable to protect the occupants, and cause serious damage to the personal safety of the occupants. Summary of the Invention

[0003] The present invention aims to solve at least one of the technical problems existing in the prior art. To this end, the present invention provides an airbag control device that can detonate the airbag in time when the vehicle encounters a frontal column collision, so that the airbag can protect the occupants.

[0004] An airbag control device according to an embodiment of the present invention includes a beam structure and an airbag assembly; the beam structure extends in a first direction, and the beam structure has a sealed pressure chamber that extends in the first direction; the airbag assembly includes a pressure sensor, a controller, and an airbag. The pressure sensor is used to obtain the air pressure value in the pressure chamber in real time and calculate the air pressure change value during any period according to the air pressure value. The controller is used to obtain the air pressure change value and calculate the acceleration change curve during the current period according to the air pressure change value. When the acceleration change curve crosses a preset acceleration threshold line, the controller controls the airbag to detonate.

[0005] The airbag control device according to an embodiment of the present invention calculates the acceleration change curve during the vehicle collision period by detecting the air pressure change value during the vehicle collision period, and compares the acceleration change curve with the preset acceleration threshold line, so as to control the detonation of the airbag. This effectively solves the problem that in a vehicle with a traditional energy absorption box structure, when a frontal column collision occurs, since the energy absorption box does not deform, the collision sensor installed on the energy absorption box cannot detect the collision signal. In addition, the setting of the pressure chamber 121 expands the detection range of vehicle collisions, so that when the beam structure 1 is subjected to any form of collision, the air pressure value in the pressure chamber 121 can change according to the impact received, so that the detonation of the airbag is more accurate and timely, and further can effectively protect the personal safety of the occupants and improve the riding experience of the occupants.

[0006] In addition, the airbag control device according to the present invention may further have the following additional technical features:

[0007] In some embodiments, the beam structure includes a bumper beam, and the pressure chamber is located within the bumper beam.

[0008] In some embodiments, the beam structure has a cavity extending in the first direction, and within the cavity there are a partition plate and a sealing plate. The partition plate extends in the first direction to divide the cavity into a pressure chamber and a structural chamber in the second direction. The sealing plate is installed at both ends of the pressure chamber to seal the pressure chamber, wherein the first direction and the second direction are perpendicular to each other.

[0009] In some embodiments, a pressure relief hole is provided on the partition plate, and the pressure relief hole communicates with the pressure chamber. An assembly hole is provided on the wall surface of the structural chamber away from the pressure chamber. The airbag assembly further includes a mounting seat, and the mounting seat has a gas passage. The pressure sensor is installed at one end of the gas passage. The mounting seat is installed in the assembly hole and extends towards the pressure relief hole so that the other end of the gas passage communicates with the pressure relief hole.

[0010] In some embodiments, one end of the mounting seat facing the pressure sensor has a first screwed joint portion, and the pressure sensor has a second screwed joint portion. The first screwed joint portion and the second screwed joint portion cooperate to enable the pressure sensor to be screwed onto the mounting seat.

[0011] In some embodiments, a fixed table surface is provided on the outer peripheral edge of the mounting seat, and the fixed table surface abuts against the beam structure.

[0012] In some embodiments, the end of the mounting seat extends into the pressure relief hole, wherein the end of the mounting seat is in interference fit with the pressure relief hole, or a sealing member is provided between the end of the mounting seat and the pressure relief hole to seal the gap between the mounting seat and the pressure relief hole.

[0013] In some embodiments, there are a plurality of reinforcing rib plates in the structural chamber. The plurality of reinforcing rib plates are spaced apart in a third direction. The assembly hole is located between two adjacent reinforcing rib plates, and the third direction is perpendicular to the first direction and the second direction respectively.

[0014] In some embodiments, the plurality of reinforcing rib plates are used to divide the structural chamber into a plurality of non - communicating sub - chambers.

[0015] In some embodiments, in the first direction, the pressure relief hole is located in the middle of the partition plate.

[0016] The present invention also provides a vehicle having the above-described embodiments.

[0017] For the vehicle according to the embodiments of the present invention, by providing the above-described airbag control device, the detonation timing of the airbag of the vehicle can be made more accurate and timely, effectively protecting the safety of the vehicle occupants.

[0018] Additional aspects and advantages of the present invention will be given in part in the following description, become apparent in part from the following description, or be learned through the practice of the present invention. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 is a schematic structural diagram of an airbag control device according to an embodiment of the present invention;

[0020] Figure 2 is a left view of an airbag control device according to an embodiment of the present invention;

[0021] Figure 3 is a cross-sectional view of an airbag control device according to an embodiment of the present invention;

[0022] Figure 4 is a partially enlarged view of an assembly hole of an airbag control device according to an embodiment of the present invention;

[0023] Figure 5 is a schematic structural diagram of a mounting seat of an airbag control device according to an embodiment of the present invention;

[0024] Figure 6 is a schematic structural diagram of a pressure sensor (front) of an airbag control device according to an embodiment of the present invention;

[0025] Figure 7 is a schematic structural diagram of a pressure sensor (back) of an airbag control device according to an embodiment of the present invention;

[0026] Figure 8 is a cross-sectional view of a beam structure, a mounting seat and a pressure sensor (assembled together) of an airbag control device according to an embodiment of the present invention;

[0027] Figure 9 is a flowchart of an airbag control method (under normal vehicle conditions) according to an embodiment of the present invention;

[0028] Figure 10 is a flowchart of an airbag control method (under vehicle collision conditions) according to an embodiment of the present invention.

[0029] Reference Signs:

[0030] 100, airbag control device;

[0031] 1. Beam structure; 11. Anti-collision beam; 12. Cavity; 13. Partition board; 14. Sealing board; 121. Pressure chamber; 122. Structure chamber; 131. Pressure relief hole; 1221. Assembly hole; 1222. Reinforcing rib plate; 1223. Sub-cavity;

[0032] 2. Airbag assembly; 21. Pressure sensor; 22. Controller; 23. Mounting seat; 211. Second screwed joint part; 231. Gas passage; 232. First screwed joint part; 233. Fixed tabletop. Detailed implementation mode

[0033] The embodiments of the present invention will be described in detail below. Examples of the embodiments are shown in the drawings, where the same or similar reference numerals denote the same or similar elements or elements having the same or similar functions throughout. The embodiments described below with reference to the drawings are exemplary and are intended to explain the present invention and should not be construed as limiting the present invention.

[0034] In the description of the present invention, it should be understood that the terms "center", "longitudinal", "transverse", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", "axial", "radial", "circumferential", etc. indicate the orientation or positional relationship based on the orientation or positional relationship shown in the drawings, and are only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and thus should not be construed as limiting the present invention.

[0035] In addition, the terms "first" and "second" are only used for descriptive purposes and should not be construed as indicating or implying relative importance or implicitly indicating the number of the indicated technical features. Thus, the features defined with "first" and "second" may explicitly or implicitly include one or more of such features. In the description of the present invention, "a plurality" means two or more unless otherwise specifically defined.

[0036] In the present invention, unless otherwise clearly specified and defined, the terms "installed", "connected", "connected", "fixed", etc. should be understood in a broad sense. For example, it may be a fixed connection, a detachable connection, or integrated; it may be a mechanical connection, an electrical connection, or a communication; it may be directly connected, or indirectly connected through an intermediate medium, and may be the internal communication of two elements or the interaction relationship between two elements. For those of ordinary skill in the art, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0037] Refer to below Figures 1 - 10Describe the airbag control device 100 according to an embodiment of the present invention.

[0038] As Figures 1 to 10 shown, the airbag control device 100 according to an embodiment of the present invention includes a beam structure 1 and an airbag assembly 2; the beam structure 1 extends in a first direction, and the beam structure 1 has a sealed pressure chamber 121, and the pressure chamber 121 extends in the first direction; the airbag assembly 2 includes a pressure sensor 21, a controller 22, and an airbag. The pressure sensor is used to obtain the air pressure value of the pressure chamber in real time, and calculate the air pressure change value during any period according to the air pressure value. The controller is used to obtain the air pressure change value, and calculate the acceleration change curve during the current period according to the air pressure change value. When the acceleration change curve crosses a preset acceleration threshold line, the controller controls the airbag to detonate. In this embodiment, when a vehicle collides, the beam structure 1 installed on the vehicle first collides with an obstacle. The beam structure 1 can absorb the impact force generated by the collision by deforming, thereby reducing the damage caused by the impact force to the vehicle; when the beam structure 1 is impacted and deformed, the air pressure in the pressure chamber 121 will change. The pressure sensor 21 can detect the air pressure value in the pressure chamber 121 in real time, calculate the air pressure change value during the current period, and transmit the air pressure change value to the controller 22, so that the controller 22 can timely control the airbag to detonate, thereby protecting the safety of the occupants.

[0039] In this embodiment, after the beam structure 1 is impacted, it will deform. At this time, the pressure chamber 121 provided in the beam structure 1 will also deform due to the impact. The air pressure value in the deformed pressure chamber 121 will change compared with that before the collision. The air pressure value will be detected by the pressure sensor 21 in real time, and the air pressure change value during the collision period can be calculated. The pressure sensor 21 will transmit the calculated air pressure change value to the controller 22 in the form of an electrical signal. The controller 22 will analyze and calculate the received electrical signal, so as to obtain the acceleration change curve during the collision period, and compare the obtained acceleration change curve with the preset acceleration threshold line set in the controller 22. If the acceleration change curve crosses the preset acceleration threshold line, the controller 22 will emit a detonation current to detonate the airbag, so that the airbag pops out to protect the safety of the occupants. Otherwise, the controller 22 will not act.

[0040] The airbag control device 100 according to an embodiment of the present invention calculates the acceleration change curve during the vehicle collision period by detecting the air pressure change value during the vehicle collision period, and compares the acceleration change curve with a preset acceleration threshold line, so as to control the airbag detonation method, effectively solving the problem that in a vehicle with a traditional energy-absorbing box structure, during a frontal column collision, since the energy-absorbing box does not deform, the collision sensor installed on the energy-absorbing box cannot detect the collision signal. In addition, the setting of the pressure chamber 121 expands the detection range of vehicle collisions, so that when the beam structure 1 is subjected to any form of collision, the air pressure value in the pressure chamber 121 can change according to the impact received, thereby making the detonation of the airbag more accurate and timely, and further effectively protecting the personal safety of the occupants and improving the riding experience of the occupants.

[0041] In an embodiment of the present invention, as Figures 1 to 10 shown, the beam structure 1 includes a bumper beam 11, and the pressure chamber 121 is located inside the bumper beam 11. In this embodiment, when the bumper beam 11 collides with an obstacle, the pressure chamber 121 installed in the bumper beam 11 can be deformed in time due to the impact. In this way, the air pressure in the pressure chamber 121 can change in time, so that the pressure sensor 21 can detect the air pressure change in the pressure chamber 121 in time, and transmit the air pressure change value during the collision period to the controller 22, so that the controller 22 can make a judgment in time to determine whether to detonate the airbag, thereby protecting the safety of the occupants in time and avoiding damage to the personal safety of the occupants.

[0042] In some embodiments, the beam structure 1 can further include a left longitudinal beam and a right longitudinal beam, and pressure chambers 121 can be provided in both the left longitudinal beam and the right longitudinal beam. When the left longitudinal beam or the right longitudinal beam is impacted, the pressure sensor 21 can also detect the air pressure change of the pressure chamber 121 located in the left longitudinal beam or the right longitudinal beam, so that the controller 22 can detonate the airbag in time to protect the occupants.

[0043] In an embodiment of the present invention, as Figures 1 to 10As shown in the figure, the beam structure 1 has a cavity 12 extending in the first direction. Inside the cavity 12, there are a partition plate 13 and a sealing plate 14. The partition plate 13 extends in the first direction to divide the cavity 12 into a pressure chamber 121 and a structure chamber 122 in the second direction. The sealing plate 14 is installed at both ends of the pressure chamber 121 to seal the pressure chamber 121, where the first direction and the second direction are perpendicular to each other. In this embodiment, the partition plate 13 can separate the pressure chamber 121 and the structure chamber 122 to prevent the structure chamber 122 from communicating with the pressure chamber 121 and affecting the normal change of the air pressure in the pressure chamber 121; the sealing plate 14 can ensure the sealing performance of the pressure chamber 121 so that the change of the air pressure in the pressure chamber 121 can match the current collision situation of the vehicle, enabling the controller 22 to make an accurate judgment; the structure chamber 122 can effectively improve the structural strength of the beam structure 1 so that the beam structure 1 can withstand greater impacts, further reducing the damage caused by the impact to the vehicle.

[0044] In some embodiments, in the first direction, the pressure chamber 121 is located in front of the structure chamber 122. In this way, when the beam structure 1 is impacted, the pressure chamber 121 can be impacted and deformed first, enabling the pressure sensor 21 to detect the change of the air pressure in the pressure chamber 121 faster, so that the controller 22 can timely make a judgment on whether to detonate the airbag, and further protect the occupants faster.

[0045] In a specific embodiment of the present invention, as Figures 1 to 10 shown, a pressure relief hole 131 is provided on the partition plate 13, and the pressure relief hole 131 communicates with the pressure chamber 121. An assembly hole 1221 is provided on the wall surface of the structure chamber 122 away from the pressure chamber 121. The airbag assembly 2 further includes a mounting seat 23. The mounting seat 23 has a gas passage 231. The pressure sensor 21 is installed at one end of the gas passage 231. The mounting seat 23 is installed in the assembly hole 1221 and extends towards the pressure relief hole 131 so that the other end of the gas passage 231 communicates with the pressure relief hole 131. In this specific embodiment, the opening of the pressure relief hole 131 makes the pressure chamber 121 communicate with the gas passage 231, keeping the gas pressure in the pressure chamber 121 and the gas pressure in the gas passage 231 balanced; the pressure sensor 21 is installed on the mounting seat 23 and the pressure sensor 21 communicates with the gas passage 231, enabling it to determine the change of the gas pressure in the pressure chamber 121 by detecting the change of the gas pressure in the gas passage 231; such a design makes the detection of the change of the air pressure in the pressure chamber 121 by the pressure sensor 21 more timely and accurate, enabling the controller 22 to make a determination in a shorter time to ensure that the airbag can be detonated in time to protect the occupants in the vehicle in a timely and effective manner and avoid damage to the occupants.

[0046] In a specific embodiment of the present invention, asFigures 1 to 10 As shown, one end of the mounting base 23 facing the pressure sensor 21 has a first screwing portion 232, and the pressure sensor 21 has a second screwing portion 211. The first screwing portion 232 and the second screwing portion 211 cooperate to screw the pressure sensor 21 onto the mounting base 23. For example Figure 5 As shown, the first screwing portion 232 is a mounting hole, which is opened on the end face of the end of the mounting base 23 facing the pressure sensor 21. The second screwing portion 211 includes a rotating shaft and a mating block. The rotating shaft is vertically installed at the center of the pressure sensor 21, and the mating block is installed at one end of the rotating shaft facing the mounting base 23. The mating block has the same shape as the mounting hole. When assembling the pressure sensor 21 and the mounting base 23, first, the mating block is passed through the mounting hole, and then the rotating shaft is rotated to misalign the mating block with the mounting hole, so that the mating block cannot exit from the mounting hole, and thus the pressure sensor 21 is installed on the mounting base 23. Such an assembly method is stable, simple, and fast, which can effectively save the assembly time and improve the assembly efficiency.

[0047] Furthermore, a screwing arm is provided at one end of the rotating shaft away from the mounting base 23. By rotating the screwing arm, the rotating shaft can be rotated to misalign the mating block with the mounting hole. In this way, the assembly difficulty is further reduced, making the assembly more convenient.

[0048] In some embodiments, the pressure sensor 21 can be provided with a positioning structure, which can be a positioning groove, a positioning protrusion, etc. The mounting base 23 is also provided with a mating structure that cooperates with the positioning structure.

[0049] In a specific embodiment of the present invention, as Figures 1 to 10 shown, a fixed table surface 233 is provided on the outer peripheral edge of the mounting base 23, and the fixed table surface 233 abuts against the beam structure 1. In this specific embodiment, the fixed table surface 233 can limit the mounting base 23 to prevent the mounting base 23 from sliding into the cavity 12; in some embodiments, the fixed table surface 233 can be fixedly connected to the surface of the beam structure 1 to ensure the installation stability of the mounting base 23.

[0050] In a specific embodiment of the present invention, as Figures 1 to 10As shown, the end of the mounting seat 23 extends into the pressure relief hole 131. Herein, the end of the mounting seat 23 is in interference fit with the pressure relief hole 131, or a seal is provided between the end of the mounting seat 23 and the pressure relief hole 131 to seal the gap between the mounting seat 23 and the pressure relief hole 131. In this specific embodiment, the interference fit method can effectively seal the gap between the mounting seat 23 and the pressure relief hole 131 to prevent the air pressure in the pressure chamber 121 from leaking; by providing a seal in the gap between the mounting seat 23 and the pressure relief hole 131, an effective sealing effect can also be achieved to avoid leakage of the pressure chamber 121, so as to ensure the accuracy of the data detected by the pressure sensor 21.

[0051] In a specific embodiment of the present invention, as Figures 1 to 10 shown, the structural cavity 122 has a plurality of reinforcing rib plates 1222. The plurality of reinforcing rib plates 1222 are spaced apart along the third direction. The assembly hole 1221 is located between two adjacent reinforcing rib plates 1222. The third direction is perpendicular to the first direction and the second direction respectively. In this specific embodiment, the arrangement of the reinforcing rib plates 1222 can effectively improve the structural strength of the structural cavity 122, enabling the beam structure 1 to withstand greater impacts, thereby further reducing the damage caused by impacts to the vehicle; the assembly hole 1221 is located between two adjacent reinforcing rib plates 1222, which can reduce the processing difficulty of the assembly hole 1221. At the same time, it can also reduce the influence of the assembly hole 1221 on the structural strength of the reinforcing rib plates 1222.

[0052] In a specific embodiment of the present invention, as Figures 1 to 10 shown, the plurality of reinforcing rib plates 1222 are used to divide the structural cavity 122 into a plurality of non - communicating sub - cavities 1223. In this specific embodiment, the plurality of non - communicating sub - cavities 1223 can further improve the overall structural strength of the structural cavity 122, thereby making the beam structure 1 more stable and reliable, and enhancing the protection of the occupants.

[0053] In a specific embodiment of the present invention, as Figures 1 to 10 shown, in the first direction, the pressure relief hole 131 is located in the middle of the partition plate 13. In this specific embodiment, the pressure relief hole 131 is provided in the middle of the partition plate 13, which can make the distances from both ends of the pressure chamber 121 in the first direction to the pressure relief hole 131 equal. In this way, the situation of air pressure detection delay can be avoided.

[0054] The present invention also proposes a vehicle having the above - mentioned embodiment.

[0055] For the vehicle according to the embodiment of the present invention, by providing the above - mentioned airbag control device 100, the detonation timing of the vehicle's airbag can be made more accurate and timely, effectively protecting the safety of the vehicle occupants.

[0056] The present invention also provides an airbag control method applied to the above vehicle.

[0057] According to the airbag control method of the embodiment of the present invention, the pressure sensor 21 detects the air pressure value in the pressure chamber 121 in real time, calculates the air pressure change value within any time period, and converts the air pressure change value into an electrical signal and transmits it to the controller 22; the controller 22 analyzes the electrical signal, calculates the acceleration change curve of the vehicle in the current time period; the controller 22 compares the acceleration change curve in the current time period with the preset acceleration threshold line to determine whether to detonate the airbag. Such a control method has accurate determination and rapid activation, and can protect the vehicle occupants in time.

[0058] In this embodiment, when the vehicle is driving normally, the pressure sensor 21 will detect the air pressure change in the pressure chamber 121 in real time, and transmit the detected data to the controller 22 in real time. After analysis, calculation and comparison by the controller 22, when it is determined that the detonation condition is not reached, the controller 22 will not act. If the data signal received by the controller 22 is missing, or there is an error in the communication between the controller 22 and the pressure sensor 21, the controller 22 will control the vehicle instrument to display a fault indication or emit an audible alarm.

[0059] Further, when the vehicle collides, the pressure sensor 21 will transmit the detected data to the controller 22. After analysis, calculation and comparison by the controller 22, when it is determined that the detonation condition is not reached, the controller 22 will not act. When it is determined that the detonation condition is reached, the controller 22 will emit an ignition current to detonate the airbag so that the airbag can protect the vehicle occupants.

[0060] The airbag control device 100 according to the embodiment of the present invention, other components and operations of the vehicle are known to those of ordinary skill in the art, and will not be described in detail here.

[0061] In the description of this specification, the description with reference to terms such as "one embodiment", "some embodiments", "example", "specific example", or "some examples" means that the specific features, structures, materials or characteristics described in connection with the embodiment or example are included in at least one embodiment or example of the present invention. In this specification, the schematic representations of the above terms do not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials or characteristics described can be combined in a suitable manner in any one or more embodiments or examples. In addition, without contradiction, those skilled in the art can combine and combine the different embodiments or examples described in this specification and the features of different embodiments or examples.

[0062] Although embodiments of the present invention have been shown and described, those of ordinary skill in the art can understand that various changes, modifications, substitutions, and variations can be made to these embodiments without departing from the principles and spirit of the present invention. The scope of the present invention is defined by the claims and their equivalents.

Claims

1. An airbag control device, characterized in that, Comprising: A beam structure which extends along a first direction and has a sealed pressure chamber that extends along the first direction; An airbag assembly which includes a pressure sensor, a controller, and an airbag. The pressure sensor is used to obtain the air pressure value of the pressure chamber in real time and calculate the air pressure change value within any time period according to the air pressure value. The controller is used to obtain the air pressure change value and calculate the acceleration change curve within the current time period. When the acceleration change curve crosses a preset acceleration threshold line, the controller controls the airbag to detonate. There is a cavity extending along the first direction within the beam structure. The cavity has a partition plate and a sealing plate. The partition plate extends along the first direction to divide the cavity into a pressure chamber and a structural chamber in a second direction. The sealing plate is installed at both ends of the pressure chamber to seal the pressure chamber. Herein, the first direction and the second direction are perpendicular to each other. A pressure relief hole is provided on the partition plate and is communicated with the pressure chamber. An assembly hole is provided on the wall surface of the structural chamber away from the pressure chamber. The airbag assembly further includes a mounting seat which has a gas passage. The pressure sensor is installed at one end of the gas passage. The mounting seat is installed in the assembly hole and extends towards the pressure relief hole so that the other end of the gas passage is communicated with the pressure relief hole. Herein, The beam structure includes at least one of a bumper beam, a left longitudinal beam, and a right longitudinal beam. The pressure chamber is suitably provided in each of the bumper beam, the left longitudinal beam, and the right longitudinal beam.

2. The airbag control device according to claim 1, wherein, One end of the mounting seat facing the pressure sensor has a first screwing portion, and the pressure sensor has a second screwing portion. The first screwing portion and the second screwing portion cooperate to enable the pressure sensor to be screwed onto the mounting seat.

3. The airbag control device according to claim 1, characterized in that, A fixed table surface is provided on the outer peripheral edge of the mounting seat and abuts against the beam structure.

4. The airbag control device according to claim 1, characterized in that, The end of the mounting seat extends into the pressure relief hole. Herein, The end of the mounting seat is in interference fit with the pressure relief hole, or A sealing member is provided between the end of the mounting seat and the pressure relief hole to seal the gap between the mounting seat and the pressure relief hole.

5. The airbag control device according to claim 1, characterized in that, There are a plurality of reinforcing rib plates in the structural chamber. The plurality of reinforcing rib plates are spaced apart along a third direction. The assembly hole is located between two adjacent reinforcing rib plates. The third direction is perpendicular to the first direction and the second direction respectively.

6. The airbag control device according to claim 5, characterized in that, The plurality of reinforcing rib plates are used to divide the structural chamber into a plurality of non - communicating sub - chambers.

7. The airbag control device according to claim 1, characterized in that, In the first direction, the pressure relief hole is located in the middle of the partition plate.

8. A vehicle, characterized in that, An airbag control device according to any one of claims 1 - 7.

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