Airbag device, method for controlling airbag, and vehicle

Abstract

The invention discloses a safety air bag device, and belongs to the technical field of vehicles. The airbag device includes a gas generator, a first airbag bag, and a second airbag bag. The gas generator is adapted to be secured within the seat. The first safety air bag body communicates with the gas generator and the second safety air bag body, and the end, away from the first safety air bag body, of the second safety air bag body is closed and connected with the seat. When the vehicle runs safely, the first safety air bag body and the second safety air bag body are both in a folded state and located in the seat. When a vehicle collides, the gas generator inflates the first safety airbag, the first safety airbag and the second safety airbag are both in an inflated state and pop out of the seat, the first safety airbag is located on the side of the seat, the second safety airbag is located in front of the seat, and a preset included angle is formed between the second safety airbag and the width direction of the seat. By the adoption of the technical scheme, protection on the body of a passenger can be enhanced.

Description

Technical Field

[0001] The present application relates to the field of vehicle technology, and in particular to an airbag device, an airbag control method and a vehicle. Background Art

[0002] In order to prevent passengers from being thrown out of their seats in the event of a violent collision or rollover, which may cause them to be injured in a secondary collision, airbags are usually installed in the vehicle to protect the personal safety of passengers. When a collision occurs, the airbag is quickly inflated and then pops out instantly, thereby achieving a cushioning effect to reduce the damage caused to passengers by the collision.

[0003] In the related art, an airbag device is generally installed in the steering wheel of a vehicle. When the vehicle is involved in a collision, the airbag quickly pops out from the steering wheel to protect the front of the passenger's head. However, when the seat in the vehicle is laid down or tilted at a large angle by the passenger and the passenger lies on the seat, the airbag cannot fully protect the passenger's body and is less safe. Summary of the invention

[0004] In view of this, the present application provides an airbag device, an airbag control method and a vehicle, which can ensure that passengers can still be better protected when they are in a lying position and have higher safety.

[0005] In a first aspect, an embodiment of the present application provides an airbag device, the airbag device comprising a gas generator, a first airbag bag and a second airbag bag;

[0006] The gas generator is suitable for being fixed in the seat;

[0007] The first airbag bag is connected to the gas generator and the second airbag bag respectively, and one end of the second airbag bag away from the first airbag bag is closed and connected to the seat;

[0008] Among them, when the vehicle is driving safely, the first airbag bag and the second airbag bag are both in a folded state and located inside the seat; when the vehicle collides, the gas generator inflates the first airbag bag, and the first airbag bag and the second airbag bag are both in an inflated state and pop out to the outside of the seat, the first airbag bag is located on the side of the seat, and the second airbag bag is located in front of the seat and forms a preset angle with the width direction of the seat.

[0009] Optionally, the first end of the second airbag bag is connected to the first airbag bag, the second end of the second airbag bag is closed and connected to the seat, and the first end of the second airbag bag and the second end of the second airbag bag are respectively located on opposite sides of the seat.

[0010] Optionally, the first safety airbag is located on a side of a headrest of the seat.

[0011] Optionally, the second airbag bag extends along an upper edge of the seat.

[0012] Optionally, the airbag device further comprises a first drawstring, one end of which is fixed to the seat, and the other end of which is connected to the second end of the second airbag bag, and the first drawstring and the first airbag bag are respectively located on opposite sides of the seat.

[0013] Optionally, the airbag device further comprises a second drawstring, one end of which is fixed to the seat, and the other end of which is connected to the first airbag bag.

[0014] In a second aspect, an embodiment of the present application further provides a method for controlling an airbag, the method being applied to the airbag device according to any one of the first aspects above, the method comprising:

[0015] Based on the collision intensity, determining the current collision level of the vehicle;

[0016] In response to the current collision level being greater than a preset level, acquiring a current tilt angle of the seat;

[0017] In response to the current tilt angle being greater than a preset angle, an inflation instruction is generated, wherein the inflation instruction is used to instruct the gas generator to inflate air into the first safety airbag bag.

[0018] Optionally, in response to the current collision level being greater than a preset level, obtaining a current tilt angle of the seat includes:

[0019] In response to the current collision level being greater than a preset level, obtaining seat pressure;

[0020] In response to the seat pressure being greater than a preset pressure, a current tilt angle of the seat is acquired.

[0021] Optionally, in response to the current collision level being greater than a preset level, obtaining a current tilt angle of the seat includes:

[0022] In response to the current collision level being greater than a preset level, collecting a target image, wherein the target image is obtained by photographing the area where the seat is located;

[0023] Determining seating information based on the target image, wherein the seating information includes whether a passenger is seated or not seated;

[0024] In response to the seating information indicating that a passenger is seated, a current tilt angle of the seat is acquired.

[0025] In a third aspect, an embodiment of the present application further provides a vehicle, comprising the airbag device described in any one of the first aspects above.

[0026] The airbag device provided in the embodiment of the present application includes a gas generator, a first airbag bag and a second airbag bag. When a vehicle collides, the gas generator can inflate the first airbag bag. Since the first airbag bag is connected to the second airbag bag, the gas can also enter the second airbag bag. At this time, the first airbag bag and the second airbag bag are in the inflating device and can be ejected to the outside of the seat. Since the first airbag bag is located on the side of the seat, the side of the passenger on the seat can be protected. At the same time, since the second airbag bag is located in front of the seat and forms a preset angle with the width direction of the seat, the second airbag bag can protect the front of the passenger's body and prevent the passenger from slipping on the seat. In other words, the airbag device provided in the embodiment of the present application can provide all-round protection for the side and front of the passenger's body. In other words, even when the passenger is in a lying position on the seat, the airbag device provided in the embodiment of the present application can still stably restrain the passenger on the seat, thereby enhancing the protection of the passenger's body and having a higher safety. BRIEF DESCRIPTION OF THE DRAWINGS

[0027] In order to more clearly illustrate the technical solutions in the embodiments of the present application, the drawings required for use in the description of the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present application. For ordinary technicians in this field, other drawings can be obtained based on these drawings without creative work.

[0028] Figure 1 is a rear view structural schematic diagram of an airbag bag in an airbag device provided by an embodiment of the present application when the airbag bag is in an inflated state;

[0029] Figure 2 is a schematic structural diagram of an airbag device provided in an embodiment of the present application;

[0030] Figure 3 is a schematic side view of the structure of an airbag bag in an airbag device provided by an embodiment of the present application when the airbag bag is in an inflated state;

[0031] Figure 4is a front view structural schematic diagram of an airbag bag in an airbag device provided in an embodiment of the present application when the airbag bag is in an inflated state;

[0032] Figure 5 is a front view structural schematic diagram of another airbag device provided in an embodiment of the present application when the airbag bag is in an inflated state;

[0033] Figure 6 It is a schematic diagram of the structure of an airbag device provided in an embodiment of the present application installed on a seat;

[0034] Figure 7 is a flow chart of a method for controlling an airbag provided in an embodiment of the present application;

[0035] Figure 8 This is a flow chart of another airbag control method provided in an embodiment of the present application.

[0036] Reference numerals:

[0037] 100. Gas generator;

[0038] 200, first airbag;

[0039] 300, second airbag;

[0040] 400, seat; 410, headrest; 420, frame;

[0041] 500, first drawstring;

[0042] 600, second drawstring;

[0043] 700, passengers;

[0044] 800. Third airbag.

[0045] The above drawings have shown clear embodiments of the present application, which will be described in more detail later. These drawings and text descriptions are not intended to limit the scope of the present application in any way, but to illustrate the concept of the present application to those skilled in the art by referring to specific embodiments. DETAILED DESCRIPTION

[0046] In order to make the objectives, technical solutions and advantages of the present application clearer, the implementation methods of the present application will be further described in detail below with reference to the accompanying drawings.

[0047] The terms used in the implementation mode of the present application are only used to explain the embodiments of the present application, and are not intended to limit the present application. Unless otherwise defined, the technical terms or scientific terms used herein should be understood by people with ordinary skills in the field to which the present application belongs. The words "first", "second", "third" and similar words used in the patent application specification and claims of the present application do not indicate any order, quantity or importance, but are only used to distinguish different components. Similarly, words such as "one" or "one" do not indicate a quantity limit, but indicate that there is at least one. Words such as "include" or "include" and similar words mean that the elements or objects appearing in front of "include" or "include" include the elements or objects listed after "include" or "include" and their equivalents, and do not exclude other elements or objects. Words such as "connect" or "connected" and similar words are not limited to physical or mechanical connections, but may include electrical connections, whether direct or indirect. "Up", "down", "left", "right" and the like are only used to indicate relative positional relationships. When the absolute position of the described object changes, the relative positional relationship may also change accordingly.

[0048] Combination Figure 1 , Figure 2 and Figure 6 As shown, in a first aspect, an embodiment of the present application provides an airbag device, which includes a gas generator 100 , a first airbag bag 200 and a second airbag bag 300 .

[0049] The gas generator 100 is suitable for being fixed in the seat 400. In some embodiments, a frame 420 is installed in the seat body, and the gas generator 100 can be fixed on the frame 420 by a mounting bracket, so that the gas generator 100 can be installed more firmly and prevent the gas generator 100 from being separated from the seat 400.

[0050] The first airbag bag 200 is connected to the gas generator 100 and the second airbag bag 300 respectively, and the end of the second airbag bag 300 away from the first airbag bag 200 is closed and connected to the seat 400. Such an arrangement can ensure that the gas in the first airbag bag 200 can pass into the second airbag bag 300, and can also prevent the gas from leaking from the second airbag bag 300, thereby ensuring the effectiveness of the subsequent inflation of the gas generator 100.

[0051] When the vehicle is driving safely, the first airbag bag 200 and the second airbag bag 300 are both in a folded state and located inside the seat 400. When the vehicle collides, the gas generator 100 inflates the first airbag bag 200, and the first airbag bag 200 and the second airbag bag 300 are both in an inflated state and pop out to the outside of the seat 400. The first airbag bag 200 is located on the side of the seat 400, and the second airbag bag 300 is located in front of the seat 400 and forms a preset angle with the width direction of the seat 400. It can be understood that the gas generator 100 inflates the first airbag bag 200 means that the gas generator 100 performs corresponding operations based on the inflation instruction, such as performing an ignition operation to ignite the solid fuel in the first airbag bag 200, so that the solid fuel can form a large amount of gas, and then the gas can quickly fill the entire first airbag bag 200 and the second airbag bag 300 connected to the first airbag bag 200.

[0052] By using the airbag device provided in the embodiment of the present application, when a vehicle collides, the first airbag bag 200 and the second airbag bag 300 are inflated. Since the first airbag bag 200 is located on the side of the seat 400, the side of the passenger 700 on the seat 400 can be protected. At the same time, since the second airbag bag 300 is located in front of the seat 400 and forms a preset angle with the width direction of the seat 400, the second airbag bag 300 can protect the front of the passenger 700 and prevent the passenger 700 from sliding on the seat 400. In other words, by using the airbag device provided in the embodiment of the present application, the side and front of the passenger 700 can be protected in all directions. In other words, even when the passenger 700 is in a lying position on the seat 400, the airbag device provided in the embodiment of the present application can still stably restrain the passenger 700 on the seat 400, thereby strengthening the protection of the passenger 700 body and having a higher safety.

[0053] The following is combined with Figures 1 to 6 The details and functions of the airbag device provided in the embodiment of the present application are described in more detail.

[0054] like Figure 4As shown, in some embodiments, the first end of the second airbag bag 300 is in communication with the first airbag bag 200, and the second end of the second airbag bag 300 is closed and connected to the seat 400. It should be noted that the second end of the second airbag bag 300 can be connected to the frame 420 in the seat 400. The first end of the second airbag bag 300 and the second end of the second airbag bag 300 are respectively located on opposite sides of the seat 400. It can be understood that since the two ends of the second airbag bag 300 are respectively located on opposite sides of the seat 400, for example, the first end of the second airbag bag 300 can be located on the right side of the seat 400, and the second end of the second airbag bag 300 can be located on the left side of the seat 400. With such arrangement, the second airbag 300 can be equivalent to spanning the seat 400 in the width direction of the seat 400, and the passenger 700 usually sits on the seat 400, so when the second airbag 300 pops out from the seat 400, it can be ensured that the second airbag 300 can press the body of the passenger 700 to better restrain the passenger 700 on the seat 400. Therefore, when the vehicle collides, the passenger 700 can be better protected and the personal safety of the passenger 700 can be improved.

[0055] like Figure 3 As shown, in some embodiments, the first airbag 200 is located on the side of the headrest 410 of the seat 400. In this way, when the first airbag 200 pops out from the seat 400, it can be just on the side of the head of the passenger 700, so that the head of the passenger 700 can be better protected to avoid head injuries.

[0056] like Figure 5 As shown, in some embodiments, the airbag device further includes a third airbag bag 800, which is installed in the seat 400, one end of which is connected to the gas generator 100, and the other end is in a closed state. When the vehicle is driving safely, the third airbag bag 800 is in a folded state and is located in the seat 400; when the vehicle collides, the gas generator 100 inflates the third airbag bag 800, and the third airbag bag 800 is in an inflated state and pops out of the seat 400. The third airbag bag 800 is arranged opposite to the first airbag bag 200. For example, the first airbag bag 200 is located on the right side of the headrest 410 of the seat 400, and the third airbag bag 800 is located on the left side of the headrest 410 of the seat 400. It should be noted that the third airbag 800 cooperates with the first airbag 200 to simultaneously restrict the positions of both sides of the passenger's 700 head to prevent the passenger's 700 head from shaking excessively during a vehicle collision, thereby further strengthening the protection of the passenger 700 and improving the safety of the passenger 700. Figure 5Shown is only a schematic diagram of the first airbag bag 200 and the third airbag bag 800. The specific shape of the third airbag bag 800 can be adjusted as needed to ensure that the third airbag bag 800 can better protect the head of the passenger 700 when it is in an inflated state.

[0057] like Figure 1 As shown, in some embodiments, the second airbag bag 300 extends along the upper edge of the seat 400. For example, the second airbag bag 300 extends along the upper edge of the inner frame 420 of the seat 400. In this way, when the vehicle is driving normally, the second airbag bag 300 can be better stored in the seat 400 to prevent the second airbag bag 300 from hitting the front of the seat 400, thereby improving the comfort of the passenger 700 when leaning against the seat 400.

[0058] like Figure 3 As shown, in some embodiments, the airbag device further includes a first drawstring 500, one end of the first drawstring 500 is fixed on the seat 400, and the other end is connected to the second end of the second airbag bag 300, and the first drawstring 500 and the first airbag bag 200 are respectively located on opposite sides of the seat 400. It should be noted that by providing the first drawstring 500, when the first airbag bag 200 and the second airbag bag 300 are inflated and popped out from the seat 400, the first drawstring 500 can increase the distance between the second end of the second airbag bag 300 and the seat 400, so as to ensure that the first drawstring 500, the second airbag, the first airbag and the front of the seat 400 can enclose a space sufficient to accommodate the body of the passenger 700, that is, to ensure that the passenger 700 can be covered, so as to better restrain the passenger 700 on the seat 400, and prevent the passenger 700 from leaving the seat 400 or sliding on the seat 400 when the vehicle collides, thereby improving the safety of the passenger 700.

[0059] like Figure 1As shown, in some embodiments, the airbag device further includes a second drawstring 600, one end of which is fixed on the seat 400, and the other end of which is connected to the first airbag bag 200. It should be noted that by providing the second drawstring 600, when the first airbag bag 200 is inflated and pops out from the seat 400, the second drawstring 600 can increase the distance between the end of the first airbag bag 200 away from the gas generator 100 and the seat 400, thereby further ensuring that the second drawstring 600, the first airbag bag 200, the second airbag bag 300, the first drawstring 500 and the front of the seat 400 can enclose a sufficient accommodation space for the body of the passenger 700, that is, ensuring that the passenger 700 can be covered, so as to better restrain the passenger 700 on the seat 400, prevent the passenger 700 from leaving the seat 400 or sliding on the seat 400 when the vehicle collides, and improve the safety of the passenger 700. It should be understood that the first drawstring 500 and the second drawstring 600 can be fixed to the frame 420 in the seat by means of fixing members.

[0060] like Figure 1 As shown, in some embodiments, one end of the first drawstring 500 away from the second airbag bag 300 can be fixed to the frame 420 in the seat 400. One end of the second drawstring 600 away from the first airbag bag 200 can be fixed to the frame 420 in the seat 400. Thus, the stability of the installation of the first drawstring 500 and the second drawstring 600 can be improved.

[0061] In some embodiments, the surfaces of the first airbag bag 200 and the second airbag bag are corrugated, so that when the first airbag bag 200 and the second airbag bag 300 come into contact with the body of the passenger 700, a certain friction force can be increased, thereby more firmly restraining the passenger 700 on the seat 400.

[0062] As can be seen from the above, by using the airbag device provided in the embodiment of the present application, when a vehicle collision occurs, even if the passenger 700 is in a lying position, the passenger 700 can still be stably restrained on the seat 400, thereby preventing the passenger 700 from falling off the seat 400 or sliding on the seat 400, thereby improving the safety of the passenger 700.

[0063] Second, combining Figure 7 As shown, the embodiment of the present application further provides a method for controlling an airbag, which is applied to the airbag device described in any one of the first aspects above. The method for controlling an airbag can be executed by a controller on a vehicle. The method for controlling an airbag provided in the embodiment of the present application includes the following steps 101 to 103.

[0064] In step 101 , the controller determines the current collision level of the vehicle based on the collision intensity.

[0065] Generally, a collision sensor is installed on the vehicle. When the vehicle collides, the collision sensor is used to detect the collision intensity of the vehicle. In some embodiments, the collision sensor sends the detected collision intensity to the controller. The controller determines the current collision level of the vehicle corresponding to the collision intensity. The controller pre-stores different collision levels and different collision intensities corresponding to each collision level.

[0066] In step 102 , in response to the current collision level being greater than a preset level, the controller obtains the current tilt angle of the seat 400 .

[0067] It should be noted that an angle sensor is installed in the seat 400, and the angle sensor is used to detect the tilt angle of the seat 400, that is, the angle formed by the backrest of the seat 400 and the direction perpendicular to the seat cushion of the seat 400. In some embodiments, the controller sends an angle acquisition instruction to the angle sensor in response to the current collision level being greater than the preset level. In response to receiving the angle acquisition instruction, the angle sensor sends the current tilt angle of the current seat 400 to the controller.

[0068] In step 103 , the controller generates an inflation instruction in response to the current tilt angle being greater than a preset angle.

[0069] The inflation instruction is used to instruct the gas generator 100 to inflate the first airbag bag 200. It should be noted that if the current tilt angle is greater than the preset angle, it indicates that the seat 400 is in a reclining or large-angle tilted state, and the passenger 700 is generally in a lying state. At this time, the gas generator 100 is controlled to inflate the first airbag bag 200, and then the gas can enter the second airbag bag 300 through the first airbag bag 200, so that the first airbag bag 200 and the second airbag bag 300 are both in an inflated state and pop out from the seat 400, so that the passenger 700 can be restrained on the seat 400, so as to prevent the passenger 700 from leaving the seat 400 or sliding on the seat 400, and provide more comprehensive protection for the passenger 700, thereby improving the safety of the passenger 700 in a lying state and reducing the damage to the passenger 700 caused by vehicle collision.

[0070] Combination Figure 8 As shown, the embodiment of the present application further provides a method for controlling an airbag, which is applied to the airbag device described in any one of the first aspects above. The method for controlling an airbag can be executed by a controller on a vehicle. The method for controlling an airbag provided in the embodiment of the present application includes the following steps 201 to 207.

[0071] In step 201 , the controller determines the current collision level of the vehicle based on the collision intensity.

[0072] It should be noted that step 201 is the same as step 101, so the embodiment of the present application will not be repeated here.

[0073] In step 202 , the controller obtains the pressure of the seat 400 in response to the current collision level being greater than a preset level.

[0074] It should be noted that a pressure sensor is generally installed in the seat 400, and the pressure sensor is used to detect the pressure value of the seat 400 to obtain the pressure of the seat 400. The controller can obtain the pressure of the seat 400 from the pressure sensor in response to the current collision level being greater than the preset level.

[0075] In step 203 , in response to the pressure of the seat 400 being greater than a preset pressure, the controller acquires a current tilt angle of the seat 400 .

[0076] It is understandable that when the pressure of the seat 400 is greater than the preset pressure value, it indicates that a passenger 700 may be seated on the seat 400 at this time, and then the current tilt angle of the seat 400 is obtained to perform the subsequent operation of inflating the first airbag 200, thereby avoiding the first airbag 200 and the second airbag 300 from being ejected when no one is seated on the seat 400, that is, the effectiveness of inflating the first airbag 200 and the second airbag 300 is improved, and at the same time, targeted protection can be provided for the seated passenger 700. In addition, it can also avoid wasting the processing resources of the controller by still obtaining the tilt angle of the seat 400 when no passenger 700 is seated on the seat 400.

[0077] In step 204 , in response to the current collision level being greater than a preset level, the controller captures a target image.

[0078] The target image is obtained by photographing the area where the seat 400 is located. It should be noted that an image collector, such as a camera, is generally installed in the vehicle. The image collector is generally facing the seat 400 to collect the target image. It should be understood that the target image includes image information of the seat 400 and its surroundings.

[0079] In step 205 , the controller determines seating information based on the target image.

[0080] The seating information is whether the passenger 700 is seated or not. In some embodiments, a face recognition model is stored in the controller, and the controller inputs the target image into the face recognition model, so that the face recognition model can output a determination result of the target image. The determination result is the seating information, that is, whether the passenger 700 is seated.

[0081] In step 206 , the controller obtains the current tilt angle of the seat 400 in response to the seating information indicating that the passenger 700 is seated.

[0082] It should be noted that, according to the seating information, it is possible to more accurately determine whether a passenger 700 is seated on the seat 400, thereby improving the effectiveness of inflating the first airbag 200 and the second airbag 300 and the effectiveness of protecting the passenger 700. That is, in the embodiment of the present application, the current tilt angle of the seat 400 is obtained only after it is determined that a passenger 700 is seated on the seat 400, so as to further confirm whether the passenger 700 is in a lying state at this time, and to avoid the first airbag 200 and the second airbag 300 from being ejected when no one is seated on the seat 400, that is, the effectiveness of inflating the first airbag 200 and the second airbag 300 is improved, and at the same time, targeted protection can be provided for the seated passenger 700. In addition, it can also avoid wasting the processing resources of the controller by still obtaining the tilt angle of the seat 400 when no passenger 700 is seated on the seat 400.

[0083] It should be noted that steps 202 to 203 are one implementation method for the controller to obtain the current tilt angle of the seat 400 in response to the current collision level being greater than the preset level, and steps 204 to 206 are another implementation method for obtaining the current tilt angle of the seat 400 in response to the current collision level being greater than the preset level. The two implementation methods can be executed separately or simultaneously.

[0084] In step 207 , the controller generates an inflation instruction in response to the current tilt angle being greater than a preset angle.

[0085] The inflation instruction is used to instruct the gas generator 100 to inflate the first airbag bag 200. It should be noted that if the current tilt angle is greater than the preset angle, it indicates that the seat 400 is in a reclining or large-angle tilted state, and the passenger 700 is generally in a lying state. At this time, the gas generator 100 is controlled to inflate the first airbag bag 200, and then the gas can enter the second airbag bag 300 through the first airbag bag 200, so that the first airbag bag 200 and the second airbag bag 300 are both in an inflated state and pop out from the seat 400, so that the passenger 700 can be restrained on the seat 400, so as to prevent the passenger 700 from leaving the seat 400 or sliding on the seat 400, and provide more comprehensive protection for the passenger 700, thereby improving the safety of the passenger 700 in a lying state and reducing the damage to the passenger 700 caused by vehicle collision.

[0086] In a third aspect, the embodiment of the present application further provides a vehicle, which includes the airbag device described in any one of the first aspects above. It should be noted that the airbag device installed on the vehicle in the embodiment of the present application has the same components and corresponding functions as the airbag device provided in the embodiment of the present application in the first aspect above, so the embodiment of the present application will not be repeated here. When the vehicle collides, the first airbag bag 200 and the second airbag bag 300 are in an inflated state. Since the first airbag bag 200 is located on the side of the seat 400, it can protect the side of the passenger 700 on the seat 400. At the same time, since the second airbag bag 300 is located in front of the seat 400 and is at a preset angle with the width direction of the seat 400, the second airbag bag 300 can protect the front of the passenger 700 and prevent the passenger 700 from slipping on the seat 400. That is to say, even when the passenger 700 is in a lying position on the seat 400, the airbag device provided in the embodiment of the present application can still stably restrain the passenger 700 on the seat 400, thereby enhancing the protection of the passenger 700's body and providing higher safety, which also improves the safety of the vehicle.

[0087] Those skilled in the art will readily appreciate other embodiments of the present application after considering the specification and practicing the present application disclosed herein. The present application is intended to cover any variations, uses or adaptations of the present application, which follow the general principles of the present application and include common knowledge or customary techniques in the art that are not disclosed in the present application. The specification and examples are intended to be exemplary only.

[0088] It should be understood that the present application is not limited to the precise structures that have been described above and shown in the drawings, and that various modifications and changes may be made without departing from the scope thereof. The scope of the present application is limited only by the appended claims.

Claims

1. An airbag device, characterized in that: The airbag device comprises a gas generator (100), a first airbag bag (200) and a second airbag bag (300); The gas generator (100) is suitable for being fixed in the seat (400); The first airbag bag (200) is connected to the gas generator (100) and the second airbag bag (300) respectively, and one end of the second airbag bag (300) away from the first airbag bag (200) is closed and connected to the seat (400); Wherein, when the vehicle is driving safely, the first airbag bag (200) and the second airbag bag (300) are both in a folded state and located inside the seat (400); when the vehicle collides, the gas generator (100) inflates the first airbag bag (200), and the first airbag bag (200) and the second airbag bag (300) are both in an inflated state and pop out to the outside of the seat (400), the first airbag bag (200) is located on the side of the seat (400), and the second airbag bag (300) is located in front of the seat (400) and forms a preset angle with the width direction of the seat (400).

2. The airbag device according to claim 1, characterized in that: The first end of the second airbag bag (300) is connected to the first airbag bag (200), the second end of the second airbag bag (300) is closed and connected to the seat (400), and the first end of the second airbag bag (300) and the second end of the second airbag bag (300) are respectively located on opposite sides of the seat (400).

3. The airbag device according to claim 2, characterized in that: The first safety airbag bag (200) is located on the side of the headrest component (410) of the seat (400).

4. The airbag device according to claim 2, characterized in that: The second safety airbag bag (300) extends along the upper edge of the seat (400).

5. The airbag device according to claim 2, characterized in that: The airbag device also includes a first drawstring (500), one end of the first drawstring (500) is fixed to the seat (400), and the other end is connected to the second end of the second airbag bag (300), and the first drawstring (500) and the first airbag bag (200) are respectively located on opposite sides of the seat (400).

6. The airbag device according to claim 1, characterized in that: The safety airbag device also includes a second drawstring (600), one end of which is fixed to the seat (400) and the other end of which is connected to the first safety airbag bag (200).

7. A method for controlling an airbag, characterized in that: The method is applied to the airbag device according to any one of claims 1 to 6, and the method comprises: Based on the collision intensity, determining the current collision level of the vehicle; In response to the current collision level being greater than a preset level, obtaining a current tilt angle of the seat (400); In response to the current tilt angle being greater than a preset angle, an inflation instruction is generated, wherein the inflation instruction is used to instruct the gas generator (100) to inflate the first safety airbag bag (200).

8. The airbag control method according to claim 7, characterized in that: In response to the current collision level being greater than a preset level, obtaining the current tilt angle of the seat (400) comprises: In response to the current collision level being greater than a preset level, obtaining a seat (400) pressure; In response to the pressure of the seat (400) being greater than a preset pressure, a current tilt angle of the seat (400) is acquired.

9. The airbag control method according to claim 7, characterized in that: In response to the current collision level being greater than a preset level, obtaining the current tilt angle of the seat (400) comprises: In response to the current collision level being greater than a preset level, collecting a target image, wherein the target image is obtained by photographing the area where the seat (400) is located; Determining seating information based on the target image, wherein the seating information includes whether a passenger is seated or not seated; In response to the seating information indicating that a passenger is seated, a current tilt angle of the seat (400) is acquired.

10. A vehicle, characterized in that: The vehicle includes the airbag device according to any one of claims 1 to 6.

Images