An airbag structure, an airbag assembly, and an airbag ejection method

Abstract

The present application relates to a kind of air bag structure, air bag assembly and the injection method of air bag, air bag structure includes: air bag assembly, the air bag assembly includes air bag and storage device, the air bag is arranged inside the storage device;Rotary sphere, one end of the rotary sphere and the storage device fixed connection, the other end is used to and car body rotation connection, the rotary sphere is used to when vehicle collision occurs according to the estimated collision direction sent by car body processor rotates corresponding space angle around its ball center to make the air bag in the estimated collision direction corresponding direction from the storage device is ejected out. By obtaining the estimated collision direction of the collision between user and the object inside the car body, the air bag can be accurately ejected based on the estimated collision direction, effectively protect the user from collision injury.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of airbag, in particular to an airbag structure, an airbag assembly and an airbag injection method. BACKGROUND

[0002] The airbag assembly mainly consists of a sensor, a microprocessor, a gas generator and an airbag. The sensor and the microprocessor are used to determine the degree of collision, transmit and send signals; the gas generator is used to generate an ignition action according to the signal indication, ignite the solid fuel and generate gas to inflate the airbag, so that the airbag rapidly expands, and the airbag capacity is about 50-90L. At the same time, the airbag is provided with a safety valve, which will automatically release part of the gas when the inflation is excessive or the pressure in the bag exceeds a certain value, so as to avoid user extrusion injury.

[0003] Most of the current airbags are passively ejected after a collision, such as a 100% frontal collision of a vehicle, which will open the airbag in front of the driver and passenger seats to avoid collision of the user. However, in the real situation, under the action of various objective factors such as road surface and vehicle weight distribution, the accident vehicle is easy to deviate, which cannot guarantee that the moving direction of the user is directly opposite to the airbag, resulting in the inability to avoid the damage caused by the collision to the user. At the same time, the existing airbags of the vehicle are mostly designed for one collision, so that when the vehicle is subjected to a second collision, the airbag cannot protect the user from the second collision with the vehicle.

[0004] Therefore, it is necessary to provide an airbag structure which can effectively protect the user in all directions in the case of deviation of the user's impact position and can avoid the user from the second collision when the vehicle is subjected to a second collision to solve the above technical problems. SUMMARY

[0005] In order to solve the above technical problems, the present application provides an airbag structure. The technical problems that the moving direction of the user cannot be directly opposite to the airbag in the prior art, resulting in the inability to avoid the damage caused by the collision to the user and the airbag cannot protect the user from the second collision with the vehicle when the vehicle is subjected to a second collision are solved.

[0006] The technical effect of the present application is achieved as follows:

[0007] An airbag structure, comprising:

[0008] An airbag assembly, the airbag assembly comprising an airbag and a storage device, the airbag being arranged inside the storage device;

[0009] A rotating sphere is fixedly connected to one end of the receiving device and rotatably connected to the other end of the receiving device, and is used to rotate a corresponding spatial angle around the center of the sphere when the vehicle collides to make the airbag ejected from the receiving device in a direction corresponding to the estimated collision direction.

[0010] Further, the rotating sphere is connected to the vehicle body through a rotating motor, and the rotating motor is used to drive the rotating sphere to rotate 360 degrees around the center of the sphere. By obtaining the estimated collision direction of the user colliding with the objects inside the vehicle body, the airbag can be accurately ejected in the estimated collision direction by rotating the corresponding spatial angle through the rotating sphere driven by the rotating motor, thereby effectively protecting the user from collision injury.

[0011] Further, the rotating motor is provided with a first driving motor and a second driving motor, the axial direction of the output shaft of the first driving motor is perpendicular to the axial direction of the output shaft of the second driving motor, and the axial directions of the two output shafts pass through the center of the rotating sphere.

[0012] Further, the surface of the airbag is a wave-shaped structure, and the wave-shaped structure is arranged to have a deformation depth smaller than the groove depth of the wave-shaped structure when subjected to the impact of the user within the preset speed. By designing the surface of the airbag as a wave-shaped structure, when the user collides with the airbag and the user's face is fully wrapped by the airbag, the user can breathe easily due to the gap between the user and the surface of the airbag.

[0013] In addition, a tracking type airbag assembly is also provided, which comprises a collision position sensor, a vehicle body processor and the above-mentioned airbag structure. The collision position sensor is used to detect the collision position of the vehicle body to obtain the estimated collision direction of the user colliding with the objects inside the vehicle body. The vehicle body processor is used to receive the collision position of the vehicle body and obtain the estimated collision direction of the user colliding with the objects inside the vehicle body according to the collision position, so as to control the airbag to be ejected after the rotating sphere is driven by the rotating motor to rotate a corresponding spatial angle around the center of the sphere.

[0014] Further, it further comprises an in-vehicle camera, which is used to detect the motion range of the user to adjust the ejection angle of the airbag. After obtaining the estimated collision direction of the user colliding with the objects inside the vehicle body by detecting the collision position of the vehicle body, the in-vehicle camera is used to detect the motion range of the user to determine the corresponding coverage area of the user during the motion, so that in the case that the collision position of the user deviates, the ejection angle of the airbag can be dynamically adjusted according to the relative position relationship between the coverage area and the vehicle seat, thereby realizing the accurate ejection of the airbag and maximizing the protection of the life safety of the user.

[0015] Further, the in-vehicle camera is further configured to detect whether the user has a secondary motion after detecting that the user collides with the airbag, to obtain a secondary motion range of the user, so that the vehicle body processor controls the airbag to move according to the secondary motion range when the user has a secondary motion. By detecting the secondary motion range of the user through the in-vehicle camera, the corresponding secondary motion direction of the user during the secondary motion is determined, so that the airbag is controlled to move and track through the secondary motion direction, effectively avoiding the injury caused by the secondary collision of the user.

[0016] In addition, a method for spraying an airbag is also provided, which is implemented based on the above-mentioned tracking type airbag assembly, and includes:

[0017] Obtaining a collision position of the vehicle body;

[0018] Obtaining an estimated collision direction of the user colliding with the internal object of the vehicle body according to the collision position of the vehicle body;

[0019] Driving the rotating motor to drive the rotating sphere to rotate a corresponding space angle based on the estimated collision direction, so that the airbag sprays along the estimated collision direction.

[0020] Further, obtaining an estimated collision direction of the user colliding with the internal object of the vehicle body according to the collision position of the vehicle body, and then includes:

[0021] Obtaining real-time image information of the user;

[0022] Determining a real-time motion range of the user according to the real-time image information;

[0023] Updating the estimated collision direction according to the real-time motion range according to the estimated collision direction, to adjust the space angle of the rotating sphere to spray along the updated estimated collision direction.

[0024] Further, updating the estimated collision direction according to the real-time motion range according to the estimated collision direction, to adjust the space angle of the rotating sphere to spray along the updated estimated collision direction, and then includes:

[0025] Detecting whether the user has a secondary motion;

[0026] When it is detected that the user has a secondary motion, obtaining a secondary motion range of the user;

[0027] Controlling the airbag to continue adjusting the space angle of the rotating sphere to complete the movement of the airbag according to the secondary motion range.

[0028] As described above, the present application has the following beneficial effects:

[0029] 1) By obtaining the estimated collision direction of the user colliding with the object inside the vehicle body, the airbag can be controlled to accurately spray in the estimated collision direction by rotating the corresponding space angle under the driving of the rotating motor, effectively protecting the user from collision injury.

[0030] 2) After obtaining the estimated collision direction of the user colliding with the object inside the vehicle body according to the detection of the collision position of the vehicle body, the user's movement range is detected by the in-vehicle camera to determine the corresponding coverage area of the user in the movement process, so that in the case of offset of the user's collision position, the spray angle of the airbag can be dynamically adjusted through the relative position relationship between the coverage area and the vehicle seat, realizing the precise spraying of the airbag and maximizing the protection of the user's life safety.

[0031] 3) The secondary motion range of the user is detected by the in-vehicle camera to determine the corresponding secondary motion direction of the user in the secondary motion process, so that the airbag is controlled to move and track, effectively avoiding the injury caused by the secondary collision of the user.

[0032] 4) By designing the surface of the airbag as a wavy structure, in the case that the user's face is fully wrapped by the airbag when the user hits the airbag, there is a gap between the user and the surface of the airbag to facilitate the user to breathe. BRIEF DESCRIPTION OF DRAWINGS

[0033] In order to more clearly illustrate the technical solutions of the present application, the following will briefly introduce the drawings needed to be used in the embodiments or prior art description. Obviously, the drawings in the following description are only some embodiments of the present application, and for those skilled in the art, other drawings can also be obtained without creative labor on the basis of these drawings.

[0034] Figure 1 A structural schematic diagram of a safety airbag structure provided for an embodiment of the present specification;

[0035] Figure 2 A side view of a safety airbag structure provided for an embodiment of the present specification;

[0036] Figure 3 A flowchart of a spraying method of a safety airbag provided for an embodiment of the present specification.

[0037] In the drawings, the reference signs correspond to:

[0038] Safety airbag 1, wavy structure 11, storage device 2, rotating sphere 3, vehicle body 4. DETAILED DESCRIPTION

[0039] With reference to the drawings of the embodiments of the present application, the technical solutions in the embodiments of the present application will be clearly and completely described, obviously, the described embodiments are only a part of the embodiments of the present application, rather than all the embodiments. Based on the embodiments of the present application, all other embodiments obtained by those skilled in the art without creative work belong to the scope of protection of the present application.

[0040] It should be noted that the terms "first", "second" and the like in the description and claims of the present application and the above drawings are used to distinguish similar objects, and do not necessarily indicate a specific order or sequence. It should be understood that the data thus used can be interchanged under appropriate circumstances, so that the embodiments of the present application described herein can be implemented in an order other than that illustrated or described herein. In addition, the terms "include" and "have" and any variations thereof are intended to cover non-exclusive inclusion, for example, a process, method, system, product or device including a series of steps or units does not necessarily have to be limited to those steps or units clearly listed, but can include other steps or units not clearly listed or inherent to these processes, methods, products or devices.

[0041] Embodiment 1:

[0042] As shown in Figure 1 and Figure 2 The embodiments of the present application provide a safety airbag structure, comprising: a safety airbag assembly, the safety airbag assembly comprising a safety airbag 1 and a storage device 2, the safety airbag 1 being arranged inside the storage device 2; a rotating sphere 3, one end of the rotating sphere 3 being fixedly connected with the storage device 2, the other end being rotatably connected with a vehicle body 4, the rotating sphere 3 being used to rotate a corresponding space angle around its spherical center when a vehicle collision occurs, so that the safety airbag 1 is ejected from the storage device 2 in a direction corresponding to the estimated collision direction.

[0043] Specifically, in the present embodiment, the vehicle is provided with four collision position sensors, which are respectively arranged at the tail of the vehicle body, the left side of the vehicle body, the right side of the vehicle body and the head of the vehicle body. When a collision occurs at the corresponding position, the collision position sensor located at the position detects the collision at the position and sends the collision position to the vehicle body processor. The vehicle body processor determines the estimated collision direction in which the user is likely to collide with the interior of the vehicle body or objects in the interior of the vehicle body through the collision position.

[0044] By obtaining the estimated collision direction in which the user collides with the interior of the vehicle body or objects in the interior of the vehicle body, the safety airbag 1 can be accurately ejected according to the estimated collision direction by rotating the corresponding space angle through the rotating motor driving the rotating sphere 3, thereby effectively protecting the user from collision injury.

[0045] Specifically, the direction corresponding to the estimated collision direction is the ejection direction of the airbag 1. When the offset angle of the estimated collision direction relative to the vehicle driving direction is a clockwise offset angle, the rotating sphere 3 rotates a corresponding spatial angle in the opposite direction, i.e., a counterclockwise offset angle, relative to the vehicle driving direction, so that the ejection direction of the airbag 1 and the estimated collision direction are symmetrically distributed about the perpendicular bisector of the position of the airbag 1 that is not ejected and the position of the seat on which the user is seated. In this embodiment, the user's movement speed in the estimated collision direction is the same as the ejection speed of the airbag 1 inherent to the vehicle. In some other embodiments, the ejection speed of the airbag 1 can be regulated by estimating the user's movement speed in the estimated collision direction.

[0046] Preferably, the rotating sphere 3 is connected to the vehicle body 4 by a rotating motor, which is used to drive the rotating sphere 3 to rotate 360 degrees around the sphere center.

[0047] Preferably, the rotating motor is provided with a first driving motor and a second driving motor, the axial directions of the output shafts of the first driving motor and the second driving motor are perpendicular, and the axial directions of the two output shafts both pass through the sphere center of the rotating sphere 3, so that the rotating sphere 3 is adjustable within the corresponding degrees of freedom around the output shaft of the first driving motor by the first driving motor, and the rotating sphere 3 is adjustable within the corresponding degrees of freedom around the output shaft of the second driving motor by the second driving motor, thereby realizing that the rotating sphere 3 can rotate 360 degrees around its sphere center, so as to control the rotating sphere 3 to rotate a corresponding spatial angle to achieve accurate ejection of the airbag 1 in the estimated collision direction.

[0048] Preferably, the surface of the airbag 1 is a wave-shaped structure 11, which is arranged to have a deformation depth that is less than the groove depth of the wave-shaped structure 11 when subjected to impact by the user within a preset speed. The preset speed can be determined according to the driving speed limit specified by vehicle traffic regulations or set by a person skilled in the art.

[0049] By designing the surface of the airbag as a wave-shaped structure 11, in the case where the user's face is fully wrapped by the airbag when the user impacts the airbag, the user can breathe due to the gap between the user and the surface of the airbag.

[0050] Embodiment 2:

[0051] The embodiment of the specification provides a tracking type airbag assembly, which comprises a collision position sensor, a vehicle body processor and the airbag structure in the embodiment 1. The collision position sensor is used for detecting a collision position of a vehicle body 4 to obtain an estimated collision direction of a user colliding with an object inside the vehicle body 4. The vehicle body processor is used for receiving the collision position of the vehicle body 4 and obtaining the estimated collision direction of the user colliding with the object inside the vehicle body 4 according to the collision position, so as to control the airbag 1 to spray by driving the rotating motor to rotate the rotating sphere 3 by a corresponding space angle around the sphere center.

[0052] Preferably, the embodiment further comprises an in-vehicle camera, which is used for detecting a motion range of the user to adjust a spraying angle of the airbag 1.

[0053] It should be noted that the vehicle body processor determines the estimated collision direction in which the user is likely to collide with the vehicle body or the object inside the vehicle body based on the seat position currently occupied by the user, that is, the user is assumed to be in the center position of the seat, so as to determine the moving direction of the user in the center position of the seat as the estimated collision direction according to the collision position of the vehicle body.

[0054] In order to enable the airbag 1 to accurately spray according to the estimated collision direction of the user, it is necessary to ensure that the spraying direction of the airbag 1 and the estimated collision direction are symmetrically distributed about the perpendicular bisector of the position where the airbag 1 is not sprayed and the position where the user is located. The position where the user is located is not necessarily in the center position of the seat currently occupied by the user, and may be offset.

[0055] Therefore, the actual motion path of the user is detected by the in-vehicle camera, so as to determine the X-direction offset of the actual motion path of the user relative to the estimated motion path corresponding to the estimated motion direction of the user sitting in the center position of the seat, so that in the case that the collision position of the user is offset, the spraying angle of the airbag 1 can be dynamically adjusted according to the relative positional relationship of the X-direction offset of the actual motion path relative to the estimated motion path, so as to complete the accurate spraying of the airbag 1 matched with the actual motion direction and maximize the protection of the life safety of the user. The X-direction is perpendicular to the driving direction of the vehicle, and the Y-direction is perpendicular to the X-direction in the horizontal direction. The driving direction of the vehicle is from back to front.

[0056] For example, taking the driving direction of the vehicle as the reference, when the X-direction offset is a right offset by a certain distance, the accurate spraying direction of the airbag 1 is determined according to the angle between the actual motion path and the driving direction of the vehicle. Since the airbag 1 is currently spraying based on the current spraying direction corresponding to the estimated motion direction at this time, the adjustment angle of the airbag 1 is calculated according to the accurate spraying direction and the current spraying direction, the rotating motor is controlled to rotate the rotating sphere 3 by the adjustment angle to adjust the current spraying direction in real time, and the accurate spraying of the airbag 1 is completed.

[0057] It should be noted that the estimated motion path or the actual motion path in the embodiment is forward motion, that is, the projection of the estimated motion direction or the actual motion direction in the Y direction is consistent with the vehicle driving direction.

[0058] Preferably, the in-vehicle camera is further configured to detect whether the user has a secondary motion after detecting that the user collides with the airbag 1 to obtain a secondary motion range of the user, so that the vehicle body processor controls the airbag 1 to move according to the secondary motion range when the user has a secondary motion.

[0059] Specifically, the collision position of the first collision between the user and the airbag 1 is the intersection position of the actual motion path of the user and the accurate injection direction. When the in-vehicle camera detects that the user has a secondary motion after the first collision between the user and the airbag 1, the motion direction corresponding to the secondary motion is necessarily backward motion, so the airbag 1 needs to move to track the user and complete the secondary collision protection.

[0060] By obtaining the motion path of the secondary motion of the user, the spatial offset angle of the motion path of the secondary motion is calculated with the collision position of the first collision as the center, so that on the basis of the airbag 1 completing the first accurate injection corresponding to the rotation angle of the rotating sphere 3, the rotation angle of the rotating sphere 3 is further adjusted according to the spatial offset angle, and the tracking protection process is completed.

[0061] As shown in Figure 3 The present specification also provides an injection method of a safety airbag, which is realized based on the tracking type safety airbag assembly in Embodiment 1, and includes:

[0062] S100: obtaining a collision position of a vehicle body 4;

[0063] S200: obtaining an estimated collision direction of a collision between a user and an internal object of the vehicle body 4 according to the collision position of the vehicle body 4;

[0064] S600: driving the rotating sphere 3 to rotate by a corresponding spatial angle by using a rotating motor based on the estimated collision direction, so that the airbag 1 is injected along the estimated collision direction.

[0065] In a specific embodiment, after step S200 of obtaining the estimated collision direction of the collision between the user and the internal object of the vehicle body 4 according to the collision position of the vehicle body 4, the following steps are included:

[0066] S300: obtaining real-time image information of the user;

[0067] S400: determining a real-time motion range of the user according to the real-time image information;

[0068] S500: updating the estimated collision direction according to the real-time motion range according to the estimated collision direction, so as to adjust the spatial angle of the rotating sphere 3 to spray along the updated estimated collision direction.

[0069] In a specific embodiment, step S500: updating the estimated collision direction according to the real-time motion range according to the estimated collision direction, so as to adjust the spatial angle of the rotating sphere 3 to spray along the updated estimated collision direction, and then comprising:

[0070] S700: detecting whether the secondary motion of the user occurs;

[0071] S800: when detecting that the secondary motion of the user occurs, acquiring the secondary motion range of the user;

[0072] S900: controlling the airbag 1 to continue adjusting the spatial angle of the rotating sphere 3 to complete the movement of the airbag 1 according to the secondary motion range.

[0073] Although the present application has been described by preferred embodiments, the present application is not limited to the embodiments described herein, and various changes and variations are included without departing from the scope of the present application.

[0074] The above-described embodiments and features in the embodiments can be combined with each other without conflict, if possible.

[0075] The above-described embodiments are merely preferred embodiments of the present application, and of course cannot limit the scope of the present application, and equivalent changes made according to the claims of the present application are still within the scope of the present application.

Claims

1. A tracking airbag assembly, characterized by, Including a collision position sensor, a vehicle body processor, an in-vehicle camera, and a safety airbag structure, the safety airbag structure comprising: A safety airbag assembly comprising a safety airbag (1) and a storage device (2), the safety airbag (1) is arranged inside the storage device (2); A rotating ball (3), one end of the rotating ball (3) is fixedly connected with the storage device (2), and the other end is rotatably connected with a vehicle body (4), the rotating ball (3) is used to rotate a corresponding space angle around its ball center when a vehicle collides according to the estimated collision direction sent by the vehicle body processor, so that the safety airbag (1) is ejected from the storage device (2) in the direction corresponding to the estimated collision direction; the direction corresponding to the estimated collision direction is the ejection direction of the safety airbag; The surface of the safety airbag (1) is a wavy structure (11) with a groove, the wavy structure (11) is arranged to have a deformation depth less than the depth of the groove when subjected to impact by a user within a preset speed; The collision position sensor is used to detect the collision position of the vehicle body (4) to obtain the estimated collision direction of the user colliding with the object inside the vehicle body (4), and the vehicle body processor is used to receive the collision position of the vehicle body (4) and obtain the estimated collision direction of the user colliding with the object inside the vehicle body (4) according to the collision position, so as to control the safety airbag (1) to be ejected after the rotating ball (3) is driven by a rotating motor to rotate a corresponding space angle around the ball center; The in-vehicle camera is used to detect the motion range of the user to adjust the ejection angle of the safety airbag (1), and the in-vehicle camera is also used to detect whether the user has a secondary motion after detecting that the user collides with the safety airbag (1) to obtain the secondary motion range of the user, so that the vehicle body processor controls the safety airbag (1) to move according to the secondary motion range when the user has a secondary motion.

2. The tracking airbag assembly of claim 1, wherein The rotating ball (3) is connected with the vehicle body (4) through a rotating motor, and the rotating motor is used to drive the rotating ball (3) to rotate 360 degrees around the ball center.

3. A tracking airbag assembly according to claim 2, wherein The rotating motor is provided with a first driving motor and a second driving motor, the axial direction of the output shaft of the first driving motor and the axial direction of the output shaft of the second driving motor are perpendicular, and the axial directions of the two output shafts both pass through the ball center of the rotating ball (3).

4. A method of deploying an airbag, the method being implemented based on the tracking-type airbag assembly according to any one of claims 1 to 3, characterized in that, Including: Obtaining the collision position of the vehicle body (4); Obtaining the estimated collision direction of the user colliding with the object inside the vehicle body (4) according to the collision position of the vehicle body (4); Driving the rotating ball (3) to rotate a corresponding space angle based on the estimated collision direction by using a rotating motor, so that the safety airbag (1) is ejected along the estimated collision direction.

5. The method of claim 4, wherein the airbag is ejected by the airbag inflator. Obtaining the estimated collision direction of the user colliding with the object inside the vehicle body (4) according to the collision position of the vehicle body (4), and then including: Obtaining real-time image information of the user; Determining the real-time motion range of the user according to the real-time image information; According to the estimated collision direction, the estimated collision direction is updated according to the real-time motion range, so as to adjust the space angle of the rotating sphere (3) to spray along the updated estimated collision direction.

6. The method of inflating an airbag according to claim 5, wherein According to the estimated collision direction, the estimated collision direction is updated according to the real-time motion range, so as to adjust the space angle of the rotating sphere (3) to spray along the updated estimated collision direction, and then comprising: Detecting whether the user has a secondary motion; When detecting that the user has a secondary motion, acquiring the secondary motion range of the user; According to the secondary motion range, the space angle of the rotating sphere (3) is continuously adjusted to complete the movement of the safety airbag (1).

Images