Seat assembly, control method thereof and vehicle

Abstract

The invention provides a seat assembly, a control method thereof and a vehicle, and relates to the technical field of vehicle safety airbags. The seat assembly comprises a seat, a seat back and a seat back, wherein the seat has a forward seating state and a backward seating state; the air bag module comprises a first air bag set and a second air bag set which are arranged on the two opposite sides of the seat, and each of the first air bag set and the second air bag set comprises at least one upper air bag and at least one lower air bag; when the seat is in a forward riding state, the first air bag group is located on the side, close to the side wall of the automobile body, of the seat, and under the condition of side collision, the second air bag group is configured to be fully unfolded, and lower air bags of the first air bag group are configured to be fully unfolded; when the seat is in the backward sitting state, the first air bag set is located on the side, close to the interior space, of the seat, and under the condition of side collision, the first air bag set is configured to be fully unfolded, and the lower air bags of the second air bag set are configured to be fully unfolded. The air bag module can execute differential explosion strategies according to the forward or reverse state of the seat.

Description

Technical Field

[0001] This application relates to the field of vehicle airbag technology, and in particular to a seat assembly and its control method, and a vehicle. Background Technology

[0002] Currently, vehicles have become widespread in ordinary households and integrated into people's daily lives, with people using them for travel more and more frequently. As autonomous driving technology continues to mature, the seating arrangements for vehicle occupants are becoming increasingly diverse. For example, front-seat occupants may face the same direction as rear-seat occupants to focus on the scenery and road conditions ahead; alternatively, front-seat and rear-seat occupants may sit face-to-face to facilitate communication. Accordingly, vehicle seats are designed to rotate, allowing them to face either the front or the rear of the vehicle.

[0003] Car airbags are a passive safety protection device for vehicles. To prevent occupants from colliding with each other during a side collision, and to avoid excessive lateral displacement of occupants during a collision, which could lead to injuries to the head, spine, and other parts of the body, side airbag modules have been specifically developed to protect the occupants' heads, torsos, and other body parts.

[0004] However, the aforementioned airbag module is only suitable for protection scenarios where the seat faces forward of the vehicle. It cannot provide effective protection for occupants in face-to-face seating scenarios, which may result in serious personal injury in the event of a collision. Summary of the Invention

[0005] This application provides a seat assembly and its control method, as well as a vehicle, which aims to solve the problem that traditional airbag modules, which only provide side protection, are insufficient to effectively protect occupants in face-to-face seating scenarios.

[0006] The specific technical solution is as follows: In a first aspect, embodiments of this application propose a seat assembly, comprising: a seat having a forward-facing seating position and a rear-facing seating position; and an airbag module including a first airbag group and a second airbag group disposed on opposite sides of the seat, wherein both the first airbag group and the second airbag group include at least one upper airbag and at least one lower airbag; when the seat is in the forward-facing seating position, the first airbag group is located on the side of the seat closer to the vehicle body side panel, and in the event of a collision, the second airbag group is configured to fully deploy, and the lower airbag of the first airbag group is configured to fully deploy; when the seat is in the rear-facing seating position, the first airbag group is located on the side of the seat closer to the vehicle interior space, and in the event of a collision, the first airbag group is configured to fully deploy, and the lower airbag of the second airbag group is configured to fully deploy.

[0007] This configuration allows the airbag module to execute differentiated deployment strategies based on the seat's forward or rear-facing orientation. This ensures that whether the passenger is facing forward or rear-facing, the airbag module provides appropriate cushioning and support for the occupant's head and torso, eliminating safety gaps caused by seat rotation. This improves the adaptability and scalability of the seat components, meeting the stringent safety requirements of diverse seating arrangements under autonomous driving technology. Furthermore, the differentiated deployment strategy prevents secondary injuries from the airbag, further enhancing vehicle safety and reliability.

[0008] In some embodiments, the first airbag group includes a first upper airbag and a first lower airbag, and the second airbag group includes a second upper airbag and a second lower airbag. When the seat is in a forward-facing seating position, the second upper airbag, the first lower airbag, and the second lower airbag are configured to inflate and deploy. When the seat is in a rear-facing position, the first upper airbag, the first lower airbag, and the second lower airbag are configured to inflate and deploy.

[0009] First, it helps reduce material and layout costs, simplifies control processes, and reduces system complexity. Second, it helps improve the versatility and standardization of components, which not only further reduces material manufacturing and management costs but also improves the scalability and maintainability of seat components.

[0010] In some embodiments, the airbag module further includes a first gas generator and a second gas generator, wherein the first gas generator is connected to the upper airbag of the first airbag group, and the second gas generator is connected to the upper airbag of the second airbag group. Both the first gas generator and the second gas generator are slidably connected to the seat so that the height of the upper airbags of the first airbag group and the second airbag group is adjustable.

[0011] This design firstly addresses the issue of insufficient airbag protection due to excessively tall or short individuals in related technologies, thereby facilitating adaptive protection of the head and neck and improving the reliability and stability of the airbag module's safety protection. Secondly, the same airbag module can be adapted to different vehicle models and seat heights without redesign; only the installation position and travel of the sliding connection need to be adjusted. This also improves the adaptability and versatility of the airbag module, reduces secondary development costs and time, and enables platform-based development. Furthermore, the aforementioned adaptive height adjustment also contributes to enhancing the intelligence and automation of the seat components.

[0012] In some embodiments, the upper airbag and the lower airbag of the first airbag group are connected by a first connector, and the upper airbag and the lower airbag of the second airbag group are connected by a second connector. The lengths of the first connector and the second connector are adjustable.

[0013] This design has several advantages. First, it improves the synergy and stability of the upper and lower airbags. Second, it helps eliminate stress caused by the height adjustment of the upper airbag, avoiding pulling or squeezing between the upper and lower airbags, thus enhancing the reliability and stability of both airbags.

[0014] In some embodiments, the airbag module further includes a first cutting device and a second cutting device connected to the seat; When the seat is in a forward-facing seating position, the first cutting device is configured to cut the first connecting piece to separate the upper airbag and the lower airbag of the first airbag assembly. When the seat is in a rear-facing position, the second cutting device is configured to cut the second connector to separate the upper and lower airbags of the second airbag assembly.

[0015] This physically separates the lower airbag that needs to be deployed from the upper airbag that does not need to work, eliminating energy loss and motion interference caused by pulling on non-working parts. This helps to improve the inflation rate and shape of the lower airbag, improve the protective accuracy and effect of the lower airbag, and thus improve the working reliability and stability of the airbag module.

[0016] In some embodiments, the airbag module further includes a third gas generator and a fourth gas generator, wherein the third gas generator is connected to the lower airbag of the first airbag group, and the fourth gas generator is connected to the lower airbag of the second airbag group; The first airbag group and the second airbag group each have one lower airbag. After deployment, the lower airbag forms multiple inflatable parts that are interconnected along the height direction of the vehicle. At least one of the inflatable parts is provided with a restraint member inside. At least one end of the restraint member is detachably connected to the inflatable part so that the thickness of the inflatable part is adjustable along the left and right direction of the vehicle.

[0017] This design allows for flexible adjustment of the inflatable section's deployment thickness based on the occupant's body shape, thereby improving the safety, reliability, and accuracy of airbag protection. Furthermore, the lower airbag adapts to the occupant's body shape and posture, further enhancing the usability and scalability of the seat components.

[0018] In some embodiments, the restraint is connected to the inflation part via a controlled release mechanism; The controlled release mechanism has an initial state and an actuated state. In the initial state, the controlled release mechanism connects the restraint member and the inflation part. In the actuated state, the controlled release mechanism releases the connection between the restraint member and the inflation part.

[0019] By setting up a controlled release mechanism, the release and separation of restraints can be determined based on control signals. At the beginning of a collision or even before the occupants have moved significantly, the decision to release the restraints can be made based on pre-judgment information (such as the severity of the collision, the occupant's body type, and sitting posture), which helps to improve the initiative and intelligence of airbag protection.

[0020] Secondly, embodiments of this application propose a control method for a seat assembly, applied to the seat assembly as described in the first aspect, the control method comprising: Acquire collision signals from the side of the vehicle; Obtain the position signal of the seat to determine whether the seat is in a forward-facing or backward-facing seating state; When the seat is in a forward-facing seating position, the second airbag assembly is fully deployed, and the lower airbags of the first airbag assembly are fully deployed. When the seat is in a rear-facing position, the first airbag assembly is fully deployed, and the lower airbags of the second airbag assembly are fully deployed.

[0021] The above design allows the airbag control unit to execute the corresponding airbag deployment strategy during a collision based on the seat's position signal. This configuration enables the airbag module to execute differentiated deployment strategies based on the seat's forward or rear-facing orientation, ensuring that whether the occupant is facing forward or rear-facing, the airbag module provides appropriate cushioning and support for the head and torso, eliminating safety gaps caused by seat rotation. This improves the adaptability and scalability of the seat components, meeting the stringent safety requirements of diverse seating arrangements under autonomous driving technology. Furthermore, the differentiated deployment strategy prevents secondary injuries from the airbag, further enhancing vehicle safety and reliability.

[0022] In some embodiments, the control method further includes: Obtain the body shape information of the seat occupants; Based on the body shape information, perform at least one of the following adjustment methods; First adjustment method: Determine the occupant's head position. When the seat is in a forward-facing position, adjust the position of the upper airbag of the second airbag group relative to the head position. When the seat is in a rear-facing position, adjust the position of the upper airbag of the first airbag group relative to the head position. Second adjustment method: Adjust the deployment thickness of the lower airbags of the first airbag group and the second airbag group.

[0023] This design offers several advantages. First, the upper airbag dynamically adjusts its initial position and coverage area based on the occupant's height and posture (head position relative to the seat back). This ensures the upper airbag deploys precisely to the head area, addressing the issue of insufficient airbag protection caused by excessively tall or short individuals in other technologies. This facilitates adaptive head and neck protection, enhancing the reliability and stability of the airbag module's safety features. Second, the upper airbag's height is adjusted via a sliding connection between the gas generator and the seat. This allows the same airbag module to be adapted to different vehicle models and seat heights without redesign; only the installation position and travel of the sliding connection need adjustment. This also improves the airbag module's adaptability and versatility, reducing secondary development costs and time, and enabling platform-based development. Third, the lower airbag's deployment thickness can be flexibly adjusted based on the occupant's body shape, further improving the safety, reliability, and accuracy of airbag protection. Finally, the aforementioned adaptive adjustment of height and thickness enhances the intelligence and automation of the seat components, expanding their usability and scalability.

[0024] Thirdly, embodiments of this application provide a vehicle including the seat assembly described in the first aspect.

[0025] The airbag module can execute a differentiated deployment strategy based on whether the seat is facing forward or rear-facing. This ensures that, whether the passenger is facing forward or rear-facing, the airbag module provides appropriate cushioning and support for the occupant's head and torso, eliminating safety gaps caused by seat rotation. This improves the adaptability and scalability of the seat components, meeting the safety requirements of diverse seating arrangements under autonomous driving technology. Furthermore, the differentiated deployment strategy prevents secondary injuries from the airbag, further enhancing vehicle safety and reliability. Attached Figure Description

[0026] Figure 1 This is a schematic diagram of the structure of the seat assembly provided in the embodiments of this application; Figure 2 A schematic diagram of the fully deployed airbag of the seat assembly provided in this embodiment of the application; Figure 3 A simplified schematic diagram of the airbag deployment structure of the seat assembly provided in this application embodiment when it is in a forward-facing seating position; Figure 4 A simplified schematic diagram of the airbag deployment structure of the seat assembly provided in the embodiment of this application when the seat assembly is in a rear-facing seating position; Figure 5This is a schematic diagram of the upper airbag provided in an embodiment of this application; Figure 6 and Figure 7 They are respectively Figure 1 Enlarged structural diagrams at points M1 and M2; Figure 8 This is a schematic diagram of the structure of the first connector and the second connector provided in the embodiments of this application; Figure 9 This is a schematic diagram of the lower airbag provided in an embodiment of this application; Figure 10 A flowchart illustrating the control method for the seat assembly provided in an embodiment of this application; Figure 11 This is a schematic diagram illustrating the process of adjusting the height and thickness of the airbag module provided in the embodiments of this application.

[0027] The annotations in the attached figures are explained as follows: 10. Seat components; 100. Seat; 110. Seat back; 120. Base; 130. Headrest; 210. First airbag assembly; 220. Second airbag assembly; 201. Upper airbag; 201a. First upper airbag; 201b. Second upper airbag; 202. Lower airbag; 202a. First lower airbag; 202b. Second lower airbag; 2021. Inflatable part; 2022. Restraint member; 203. First connector; 2031. First end; 2032. Second end; 2033. Folding part; 2034. Sewing thread; 204. Second connector; 230. First gas generator; 250. Sliding mechanism; 251. Support; 252. Sliding element; 253. Driving element; 260. First cutting device; 270. Second cutting device. Detailed Implementation

[0028] To make the objectives, technical solutions, and advantages of this application clearer, the following detailed description is provided in conjunction with the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative and not intended to limit the scope of this application.

[0029] In the description of this application, it should be understood that, unless otherwise expressly specified and limited, the terms "upper," "lower," "left," "right," etc., indicating the orientation or positional relationship based on the orientation or positional relationship shown in the drawings, are only for the convenience of describing this application and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, the terms used to describe positional relationships in the drawings are only for illustrative purposes and should not be construed as limiting this patent. Those skilled in the art can understand the specific meaning of the above terms according to the specific circumstances.

[0030] Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as implying or suggesting relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of this application, "multiple" means at least two, such as two, three, etc., unless otherwise explicitly specified.

[0031] In the description of this application, unless otherwise expressly specified and limited, the terms "installation," "connection," "joining," "fixing," etc., should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral part; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; they can refer to the internal communication of two components or the interaction between two components, unless otherwise expressly limited. Those skilled in the art can understand the specific meaning of the above terms in this application according to the specific circumstances.

[0032] In related technologies, to avoid mutual collisions between occupants during side collisions, and to prevent excessive lateral displacement of occupants during a collision, which could lead to injuries to the head, spine, etc., a remote (closer to the vehicle interior) side airbag module has been specifically developed to protect the head, torso, and other parts of the occupants, while also providing protection between adjacent occupants.

[0033] However, the aforementioned airbag module only functions when the seat faces forward, and cannot provide effective protection for occupants in face-to-face seating situations. When the seat orientation changes, the distal side airbag is rotated to the side closer to the outside space, and when it deploys, it will interfere with the side curtain airbags. Meanwhile, the airbag originally positioned on the side of the seat closer to the outside space is rotated to the distal end, and its protection area is small, which cannot fully prevent the driver and front passenger from coming into contact with each other in a collision.

[0034] Based on the above problems, this application proposes a seat assembly and vehicle to solve the problem that traditional airbag modules, which only provide side protection, cannot effectively protect occupants in face-to-face seating scenarios.

[0035] like Figures 1 to 4 As shown, in a first aspect, embodiments of this application provide a seat assembly 10. The seat assembly 10 includes a seat 100 and an airbag module, the seat 100 having a forward-facing seating position facing the front of the vehicle. Figure 3 ) and the rear-facing seating position (facing the rear of the vehicle) Figure 4 The airbag module includes a first airbag assembly 210 and a second airbag assembly 220 located on opposite sides of the seat 100. Both the first airbag assembly 210 and the second airbag assembly 220 include at least one upper airbag 201 and at least one lower airbag 202. When the seat 100 is in a forward-facing position, the first airbag assembly 210 is located on the side of the seat 100 closest to the vehicle's side wall. In the event of a collision, the lower airbag 202 of the first airbag assembly 210 is fully deployed, and the second airbag assembly 220 is also fully deployed. When the seat 100 is in a rear-facing position, the first airbag assembly 210 is located on the side of the seat 100 closest to the interior space. In the event of a collision, the first airbag assembly 210 is fully deployed, and the lower airbag 202 of the second airbag assembly 220 is also fully deployed.

[0036] The seat assembly 10 of this application includes a seat 100 and an airbag module. The seat 100 is capable of rotation. When the seat 100 faces the front of the vehicle, the occupant's seating direction is towards the front of the vehicle (forward seating), and this state of the seat 100 is defined as the forward seating state. In the forward seating state, the angle between the fore-aft direction of the seat 100 and the fore-aft direction of the vehicle is less than or equal to 45°. In other words, as long as the seat 100 faces the front of the vehicle and the angle between the fore-aft direction of the seat 100 and the fore-aft direction of the vehicle does not exceed 45°, the seat 100 is determined to be in the forward seating state.

[0037] Similarly, when seat 100 faces the rear of the vehicle, the occupant's seating direction is towards the rear of the vehicle (rear-facing seating), and this state of seat 100 is defined as the rear-facing seating state. In the rear-facing seating state, the angle between the fore-aft direction of seat 100 and the fore-aft direction of the vehicle is also less than or equal to 45°. In other words, as long as seat 100 faces the rear of the vehicle and the angle between the fore-aft direction of seat 100 and the fore-aft direction of the vehicle does not exceed 45°, seat 100 is determined to be in the rear-facing seating state.

[0038] When seated in the rear-facing position, passengers can communicate face-to-face with passengers in the rear seats, which helps to expand the vehicle's usage scenarios.

[0039] The seat 100 is rotatable relative to the vehicle to switch between a forward-facing and a rear-facing seating position. Specifically, the seat 100 may include a seat back 110, a base 120, and a headrest 130. The headrest 130 is supported by the seat back 110 and can be fixed or movable (height-adjustable) relative to the seat back 110. The seat back 110 can be supported by the base 120 and can be fixed or movable (backrest angle adjustment) relative to the base 120. The base 120 and / or the seat back 110 may include a frame and a cover supported on the frame. The frame may include tubes, beams, etc. The frame may be formed of plastic materials, such as carbon fiber reinforced plastic, glass fiber reinforced plastic, thermoplastic composites, etc. Of course, at least some parts of the frame may be formed of metal, such as steel, aluminum / aluminum alloys, etc. The cover may be formed of flexible materials such as fabric, leather, or artificial leather.

[0040] The airbag module includes a first airbag assembly 210 and a second airbag assembly 220, which are the main inflatable components of the airbag module. The airbag module also includes a gas generator for inflating the airbags, enabling them to inflate rapidly and protect occupants in the event of a collision. The airbags of the first airbag assembly 210 and the second airbag assembly 220 can be formed from a woven polymer or any other material. As an example, the airbags can be formed from woven nylon yarn, such as nylon 6-6. Other examples include polyetheretherketone (PEEK), polyetherketoneketone (PEKK), polyester, etc. The woven polymer may include coatings such as silicone, neoprene, polyurethane, etc.

[0041] The first airbag assembly 210 and the second airbag assembly 220 are located on opposite sides of the seat 100. For example, refer to Figure 1 When not inflated, the airbags of the first airbag group 210 can be rolled up and installed on one side beam of the seat back 110, and the airbags of the second airbag group 220 can be rolled up and installed on the other side beam of the seat back 110. In this way, the core support area or seating space of the seat back 110 is not occupied, thus avoiding affecting the passenger's riding comfort.

[0042] Understandably, the spatial positions of the first airbag assembly 210 and the second airbag assembly 220 relative to the vehicle will interchange depending on the orientation of the seat 100. Specifically, when the seat 100 is in a forward-facing position, the first airbag assembly 210 is located on the side of the seat 100 closest to the vehicle's side panel, while the second airbag assembly 220 is located on the side of the seat 100 closest to the interior space (the side closest to the central aisle). When the seat 100 is in a rear-facing position, which is equivalent to the seat 100 rotating 180°, the first airbag assembly 210 is located on the side of the seat 100 closest to the interior space, while the second airbag assembly 220 is located on the side of the seat 100 closest to the vehicle's side panel.

[0043] Optionally, seat 100 can be either a driver's seat or a passenger seat; this application does not limit this, as long as it ensures that when seat 100 is in a forward-facing seating position, the first airbag assembly 210 is located on the side of seat 100 closest to the vehicle's side panel. The accompanying drawings of this application use a driver's seat as an example for illustration.

[0044] Both the first airbag group 210 and the second airbag group 220 include at least one upper airbag 201 and at least one lower airbag 202. The upper airbag 201 is an airbag capable of cushioning and protecting the occupant's head and neck, while the lower airbag 202 is an airbag capable of cushioning and protecting the occupant's chest, abdomen, pelvis, and other major torso areas. The upper airbag 201 and the lower airbag 202 together constitute a complete side protection area.

[0045] Furthermore, in this application, reference is made to Figure 2 The upper airbag 201 and lower airbag 202 of the first airbag group 210 and the second airbag group 220 can each deploy individually. Furthermore, since safety curtain airbags are installed on the top of the side panels on opposite sides of the vehicle, these curtain airbags can protect the occupants' heads and necks. Therefore, this application also implements differentiated deployment control methods for the first airbag group 210 and the second airbag group 220 based on the different orientations of the seat 100, so as to provide the occupants with optimal collision protection adapted to the current orientation when the seat 100 is in a forward-facing (front-facing) or rear-facing (rear-facing) position.

[0046] Specifically, when the seat 100 is in a forward-facing position, the first airbag assembly 210 is located on the side of the seat 100 closest to the vehicle's side panel, and the second airbag assembly 220 is located on the side of the seat 100 closest to the interior space. If the upper airbag 201 of the first airbag assembly 210 inflates, it will interfere with the curtain airbag. On the one hand, the two may compress each other, preventing the upper airbag 201 from fully deploying to the side of the occupant's head, and / or the curtain airbag from falling vertically, thus creating a blind spot. On the other hand, the two rapidly inflating airbags may cause the occupant's head / neck to be compressed and / or twisted, causing secondary injury. If some airbags in the second airbag assembly 220 do not deploy, a blind spot will occur between adjacent occupants, leading to a collision between them. Therefore, in this case, this application configures the lower airbag 202 of the first airbag assembly 210 to fully deploy and the second airbag assembly 220 to fully deploy.

[0047] When the seat 100 is in a rear-facing position, the spatial positions of the first airbag assembly 210 and the second airbag assembly 220 relative to the vehicle are interchanged. In this case, after a collision, if only the lower airbag 202 of the first airbag assembly 210 deploys while the entire second airbag assembly 220 deploys, the protection area of ​​the first airbag assembly 210 is insufficient, and the upper airbag 201 of the second airbag assembly 220 will interfere with the curtain airbag. Therefore, in this situation, this application configures the first airbag assembly 210 to fully deploy and the lower airbag 202 of the second airbag assembly 220 to fully deploy.

[0048] Based on the aforementioned differentiated deployment methods, it can be seen that this application matches the orientation of the seat 100 with the deployment mode of the airbag module. When the seat 100 is in a forward-facing seating position, the first airbag group 210 located near the outer side of the seat 100 deploys the lower airbag 202, and the second airbag group 220 located near the inner side of the seat 100 deploys all airbags; when the seat 100 is in a rear-facing seating position, the second airbag group 220 located near the outer side of the seat 100 deploys the lower airbag 202, and the first airbag group 210 located near the inner side of the seat 100 deploys all airbags.

[0049] In other words, this application provides upper airbags 201 and lower airbags 202 that can be deployed individually on both sides of the seat 100. Regardless of the orientation of the seat 100, for the airbag group located on the outer side of the vehicle (i.e., the side closer to the door collision intrusion side), only the lower airbag 202 is deployed to protect the torso, avoiding interference between the upper airbag 201 and the curtain airbag; for the airbag group located on the inner side of the vehicle (i.e., the side closer to the central aisle of the cabin), all airbags are deployed to form a complete buffer isolation zone between the occupants. This configuration allows the airbag module to execute corresponding differentiated deployment strategies according to the forward or backward orientation of the seat 100, thereby ensuring that whether the occupant is sitting forward or face-to-face, the airbag module can provide appropriate cushioning and support for the head and torso, eliminating the safety protection gap caused by the rotation of the seat 100, and thus improving the adaptability and scalability of the seat assembly 10, meeting the rigid safety requirements of diversified seating methods under autonomous driving technology. Furthermore, the aforementioned differentiated deployment strategy can prevent airbags from causing secondary injuries to occupants, thereby improving vehicle safety and reliability.

[0050] like Figures 1 to 4As shown, in some embodiments, the first airbag group 210 includes a first upper airbag 201a and a first lower airbag 202a, and the second airbag group 220 includes a second upper airbag 201b and a second lower airbag 202b. When the seat 100 is in a forward-facing seating position, the second upper airbag 201b, the first lower airbag 202a and the second lower airbag 202b are configured to inflate and deploy. When the seat 100 is in a rear-facing seating position, the first upper airbag 201a, the first lower airbag 202a and the second lower airbag 202b are configured to inflate and deploy.

[0051] This embodiment presents a specific structure for the first airbag assembly 210 and the second airbag assembly 220. Each airbag assembly 210 and the second airbag assembly 220 has one upper airbag 201 and one lower airbag 202. The first upper airbag 201a and the second upper airbag 201b can provide protection for the opposite sides of the occupant's head and neck, while the first lower airbag 202a and the second lower airbag 202b can provide protection for the opposite sides of various parts of the occupant's body.

[0052] With the above structure, firstly, a minimum number of airbags can be used to achieve all-around protection for occupants in different seat orientations, thereby reducing material and layout costs, simplifying control procedures, and reducing system complexity. Secondly, the first airbag group 210 and the second airbag group 220 can form a symmetrical structure, and the first airbag group 210 and the second airbag group 220 can adopt the same structure, with differences only in their deployment points. This helps improve the versatility and standardization of components, which not only further reduces material manufacturing and management costs, but also improves the scalability and maintainability of the seat assembly 10.

[0053] In other embodiments, the number of upper airbags 201 and lower airbags 202 in the first airbag group 210 and the second airbag group 220 may be multiple. The number of upper airbags 201 in the first airbag group 210 and the number of upper airbags 201 in the second airbag group 220 may be the same or different. The number of lower airbags 202 in the first airbag group 210 and the number of lower airbags 202 in the second airbag group 220 may be the same or different. This application does not impose any restrictions on these aspects.

[0054] like Figure 1 and Figure 5As shown, in some embodiments, the airbag module further includes a first gas generator 230 and a second gas generator (not shown in the figure). The first gas generator 230 is connected to the upper airbag 201 of the first airbag group 210, and the second gas generator is connected to the upper airbag 201 of the second airbag group 220. Both the first gas generator 230 and the second gas generator are slidably connected to the seat 100 so that the height of the upper airbag 201 of the first airbag group 210 and the second airbag group 220 is adjustable.

[0055] The first gas generator 230 can generate gas according to a control signal to inflate the upper airbag 201 of the first airbag assembly 210; the second gas generator can generate gas according to a control signal to inflate the upper airbag 201 of the second airbag assembly 210. The first gas generator 230 and the second gas generator can be any type of gas generator selected from pyrotechnic, cold gas, mixed, and graded types, and this application does not impose any restrictions on this.

[0056] Understandably, the first gas generator 230 is connected to the upper airbag 201 of the first airbag group 210. When there are multiple upper airbags 201 in the first airbag group 210, there can be multiple first gas generators 230 in a one-to-one correspondence. Alternatively, there can be one first gas generator 230, which can simultaneously inflate multiple upper airbags 201 in the first airbag group 210. This application does not impose any restrictions on this.

[0057] Similarly, when there are multiple upper airbags 201 in the second airbag group 220, there can be multiple second gas generators, or the number of second gas generators can be one. This application does not limit this.

[0058] Furthermore, in this example, both the first gas generator 230 and the second gas generator are slidably connected to the seat 100, allowing the height of the upper airbag 201 of the first airbag assembly 210 and the second airbag assembly 220 to be adjustable. With this configuration, firstly, the upper airbag 201 can dynamically adjust the initial position and coverage of the protection area according to the occupant's actual height and posture (head position relative to the seat back 110). This ensures that the upper airbag 201 can deploy precisely on the occupant's head area, improving the problem of insufficient airbag protection due to excessively tall or short occupants in related technologies. This facilitates adaptive protection of the head and neck, improving the reliability and stability of the airbag module's safety protection. Secondly, by using the slidable connection between the gas generator and the seat to adjust the height of the upper airbag 201, the same airbag module can be adapted to different vehicle models and seat heights without redesign; only the installation position and travel of the slidable connection need to be adjusted. This also improves the adaptability and versatility of the airbag module, reduces secondary development costs and time, and enables platform-based development. Furthermore, the aforementioned adaptive height adjustment also helps to improve the intelligence and automation of the seat assembly 10.

[0059] Optionally, such as Figure 5 As shown, both the first gas generator 230 and the second gas generator are connected to the seat 100 via their respective sliding mechanisms 250. The sliding mechanism 250 includes a bracket 251, a sliding member 252, and a driving member 253. The bracket 251 is fixedly connected to the seat 100, the sliding member 252 is slidably engaged with the bracket 251, and the driving member 253 drives the sliding member 252 to reciprocate linearly. The sliding member 252 is fixedly connected to either the first gas generator 230 or the second gas generator. This allows for adaptive height adjustment of the upper airbag 201.

[0060] Optionally, the drive unit 253 can be a linear motion module such as an electric actuator or a linear motor.

[0061] Optionally, the seat assembly 10 also includes an airbag control unit (ACU), which is electrically connected to the airbag module and the drive component 253 of the sliding mechanism 250. Thus, in the normal pre-collision phase, the airbag control unit can determine the occupant's head position based on their height, posture, and other body type information, and then actively drive the sliding mechanism 250 to adjust the upper airbag 201 to the optimal pre-collision height; and at the moment of impact, it triggers a corresponding differentiated deployment strategy based on the seat's orientation.

[0062] like Figure 1 , Figures 6 to 8As shown, in some embodiments, the upper airbag 201 and the lower airbag 202 of the first airbag group 210 are connected by a first connector 203, and the upper airbag 201 and the lower airbag 202 of the second airbag group 220 are connected by a second connector 204. The lengths of the first connector 203 and the second connector 204 are adjustable.

[0063] Although the upper airbag 201 and the lower airbag 202 can deploy independently, if they are too independent, they may experience unexpected relative displacement or torsion due to lack of restraint, resulting in abnormal deflection of the protected area. Therefore, by providing the first connector 203 and the second connector 204, the upper airbag 201 and the lower airbag 202 in the first airbag group 210 and the second airbag group 220 can be integrated into a whole from the outside, guiding them to deploy in synergy and forming a continuous protective surface from the torso to the head, eliminating protective gaps, and thus improving the synergy and stability of the protection provided by the upper airbag 201 and the lower airbag 202.

[0064] Furthermore, the lengths of the first connector 203 and the second connector 204 are adjustable. For example, the first connector 203 can be a flexible folding connector, a retractor-type connector (similar to a structure such as an automatically retractable seat belt, a measuring tape, or a coiled data cable), etc., and this application does not impose any limitations on this.

[0065] Since the lengths of the first connector 203 and the second connector 204 are adjustable, when the height of the upper airbag 201 in the first airbag assembly 210 and the second airbag assembly 220 changes, the first connector 203 and the second connector 204 can adaptively adjust to a matching length. This helps eliminate stress caused by the height adjustment of the upper airbag 201, avoids pulling or squeezing between the upper and lower airbags, and thus improves the reliability and stability of the operation of the upper airbag 201 and the lower airbag 202.

[0066] Optionally, such as Figure 8As shown, the first connector 203 and the second connector 204 can be flexible folding connectors. Specifically, the first connector 203 and the second connector 204 are flexible pull straps, both including a first end 2031, a second end 2032, and multiple folded portions 2033 located between the first end 2031 and the second end 2032, with the multiple folded portions 2033 stacked along the thickness direction. A sewing thread 2034 is provided between adjacent folded portions 2033, with different strengths between different sewing threads 2034; or, adjacent folded portions 2033 are bonded together by an adhesive layer (not shown in the figure), with different adhesive strengths between different adhesive layers; or, other controllable weak points are provided between adjacent folded portions 2033, etc., which are not limited in this application. Thus, by flexibly configuring the positions of controllable weak points such as the sewing thread 2034 and the adhesive layer, as well as the breaking strength threshold, the lengths of the first connector 203 and the second connector 204 can be adjusted stepwise.

[0067] Of course, the first connector 203 and the second connector 204 can also be other components that can achieve length adjustment, and this application does not limit them.

[0068] like Figure 1 , Figure 6 and Figure 7 As shown, in some embodiments, the airbag module further includes a first cutting device 260 and a second cutting device 270 connected to the seat 100. When the seat 100 is in a forward-facing seating position, the first cutting device 260 is configured to cut the first connector 203 to separate the upper airbag 201 and the lower airbag 202 of the first airbag assembly 210. When the seat 100 is in a rearward-facing seating position, the second cutting device 270 is configured to cut the second connector 204 to separate the upper airbag 201 and the lower airbag 202 of the second airbag assembly 220.

[0069] Since the upper airbag 201 on one side of the seat 100 does not need to inflate and deploy when the seat 100 is in a forward-facing or rear-facing position, if the undeployed upper airbag 201 and the lower airbag 202 that needs to deploy are connected as one unit through the first connector 203 or the second connector 204, then during a collision, the inflation of the lower airbag 202 will pull and restrain the undeployed upper airbag 201 through the connector. This will not only consume the inflation energy of the lower airbag 202, but may also cause the deployment range of the lower airbag 202 to shift due to the pulling force, affecting the accuracy of protection.

[0070] Based on the above problems, in this embodiment, when the seat 100 is in a forward-facing seating position, the first cutting device 260 can cut the first connecting member 203 after a collision; when the seat 100 is in a rear-facing seating position, the second cutting device 270 can cut the second connecting member 204 after a collision. This physically separates the lower airbag 202, which needs to be deployed, from the upper airbag 201, which does not need to be used, eliminating energy loss and motion interference caused by pulling on non-working parts. This helps to improve the inflation rate and shape of the lower airbag 202, improve the protective accuracy and effect of the lower airbag 202, and further improve the working reliability and stability of the airbag module.

[0071] It is understood that the first cutting device 260 is on the same side as the first airbag assembly 210 and located between the upper airbag 201 and the lower airbag 202, and the second cutting device 270 is on the same side as the second airbag assembly 220 and located between the upper airbag 201 and the lower airbag 202. The first cutting device 260 and the second cutting device 270 can be common automatic electronically controlled cutters such as small pyrotechnic cutters, which cut the corresponding connecting parts by receiving control signals.

[0072] Optionally, the airbag control unit of the seat assembly 10 is electrically connected to both the first cutting device 260 and the second cutting device 270, which helps to further improve the intelligence and automation of the seat assembly 10.

[0073] like Figure 9 As shown, in some embodiments, the airbag module further includes a third gas generator and a fourth gas generator. The third gas generator is connected to the lower airbag 202 of the first airbag group 210, and the fourth gas generator is connected to the lower airbag 202 of the second airbag group 220. Each of the first and second airbag groups 210 has only one lower airbag 202. The deployed lower airbag 202 forms a plurality of interconnected inflatable sections 2021 along the height direction of the vehicle. At least one inflatable section 2021 has a restraint member 2022 inside. At least one end of the restraint member 2022 is detachably connected to the wall of the inflatable section 2021, allowing the thickness of the inflatable section 2021 to be adjustable along the left-right direction of the vehicle.

[0074] The third and fourth gas generators are independently configured gas-generating devices for the lower airbags 202 of the first airbag group 210 and the second airbag group 220, respectively. They can generate gas according to control signals to inflate the lower airbags 202 of the first and second airbag groups 210 and 220, respectively. The third and fourth gas generators can be any type of gas generator, including pyrotechnic, cold gas, mixed, and staged types, and this application does not impose any restrictions on this. The third and fourth gas generators, together with the first gas generator 230 and the second gas generator, form an independent detonation control system for each airbag in the first airbag group 210 and the second airbag group 220.

[0075] The lower airbag 202 primarily protects the occupant's body (excluding the head and neck). Upon deployment, the lower airbag 202 forms multiple interconnected inflatable sections 2021 along the vehicle's height. The number of inflatable sections 2021 can be determined based on the precision of the protected area. The number of inflatable sections 2021 corresponds to the precision of the occupant's body division. For example, if the occupant's body is divided into the chest and below, there are two inflatable sections 2021; if the occupant's body is divided into multiple areas such as the chest, abdomen, and pelvis, there are multiple inflatable sections 2021; and if the number of divided areas of the occupant's body is further increased, the number of inflatable sections 2021 increases accordingly, with each section corresponding to a specific area. In this way, multiple inflatable sections 2021 provide one-to-one protection for the occupant.

[0076] Furthermore, at least one inflatable portion 2021 is provided with a restraint member 2022 inside. The restraint member 2022 is a strap or pull strap located inside the airbag, which can control the shape and thickness of the inflatable portion 2021. Specifically, at least one end of the restraint member 2022 is detachably connected to the airbag wall, that is, the thickness of the inflatable portion 2021 is variable and can be adjusted according to the size and / or height of the occupant.

[0077] For example, under normal circumstances, if the occupant's weight is moderate or large, and their height varies, the height of the upper airbag 201 can be adjusted via the sliding mechanism 250 to protect the occupant's head, while the restraint member 2022 remains connected to the wall of the inflatable part 2021. In this way, when the entire lower airbag 202 deploys, the airbag's thickness is moderate, quickly providing support to the occupant and preventing excessive compression that could cause secondary injury.

[0078] For example, if the occupant is thin, head protection is still achieved by adjusting the height of the upper airbag 201 via the sliding mechanism 250, while body protection requires determining whether the restraints 2022 of a certain inflatable section 2021 should be released based on height information. In one embodiment, if the occupant is short, below or equal to a preset height value, their shoulder position after sitting down is low, and the shoulder position may correspond to the center position (thickest position) of the uppermost inflatable section 2021. In this case, the restraints 2022 of the uppermost inflatable section 2021 are kept connected to it, while the restraints 2022 of the other inflatable sections 2021 are released. At this time, the occupant's shoulders are wider than other parts of the torso, allowing for timely and appropriate support from the uppermost inflatable section 2021, preventing excessive compression and / or twisting. Meanwhile, other parts of the occupant's body are thinner; after the restraints 2022 are released, the corresponding inflatable sections 2021 can thicken, increasing cushioning capacity and filling gaps caused by body size differences, thus providing support and protection for the occupant. In another embodiment, if the occupant's height is normal but higher than a preset value, their shoulders, when seated, will be higher than the center of the uppermost inflatable section 2021. In this case, the restraints 2022 within each inflatable section 2021 are released, allowing the inflatable sections 2021 to thicken, filling gaps caused by body size differences, thereby providing support and protection for the occupant.

[0079] By providing multiple inflatable sections 2021 and releasable constraint members 2022 within each inflatable section 2021, the deployment thickness of the inflatable section 2021 can be flexibly adjusted according to the occupant's body shape, thereby improving the safety, reliability, and accuracy of airbag protection. Furthermore, the lower airbag 202 can adapt to the occupant's body shape and sitting posture, further enhancing the usability and expandability of the seat assembly 10.

[0080] Optionally, the constraint member 2022 can be arranged in various ways within the inflatable portion 2021. For example, the two ends of the constraint member 2022 can be directly connected to the two walls of the inflatable portion 2021 in the thickness direction, and at least one end is releasable. When not released, the constraint member 2022 pulls on the two walls of the inflatable portion 2021, limiting its thickness; after release, the inflatable portion 2021 can thicken. Another example is that the constraint member 2022 can be formed in a ring shape, with a portion of the ring-shaped constraint member 2022 connected to the two walls of the inflatable portion 2021 in the thickness direction (it can be a fixed connection or a sliding connection), and the two ends of the ring-shaped constraint member 2022 converging together, wherein at least one end is releasable connected to the inflatable portion 2021. When not released, the ring-shaped constraint member 2022 constrains the thickness of the inflatable portion 2021; after release, the inflatable portion 2021 can thicken. The specific arrangement of the constraint member 2022 can be flexibly configured according to actual conditions, and this application does not impose any restrictions on this.

[0081] Optionally, in one specific embodiment, each inflatable section 2021 is provided with a releasable constraint member 2022. This allows the deployment thickness of each inflatable section 2021 to be adjusted according to the occupant's body shape, thereby further improving the safety, reliability, and accuracy of airbag protection, as well as further enhancing the usability and scalability of the seat assembly 10.

[0082] In some embodiments, the restraint member 2022 is connected to the inflation part 2021 via a controlled release mechanism (not shown), which has an initial state and an actuated state. In the initial state, the controlled release mechanism connects the restraint member 2022 and the inflation part 2021; in the actuated state, the controlled release mechanism releases the connection between the restraint member 2022 and the inflation part 2021.

[0083] This embodiment further proposes a specific method for achieving a releasable connection between the restraint member 2022 and the inflatable part 2021. The restraint member 2022 is connected to the inflatable part 2021 via a controlled release mechanism. For example, the controlled release mechanism includes two controllably separable components. One component of the controlled release mechanism can be selectively connected to components such as the inflatable part 2021, the seat back 110, and the gas generator of the lower airbag 202. The other component of the controlled release mechanism is connected to the end of the restraint member 2022. When the controlled release mechanism receives an electrical signal, the two components separate. Thus, the restraint member 2022 can be separated from the inflatable part 2021.

[0084] The controlled release mechanism is essentially a miniature, electronically triggered actuator electrically connected to the airbag control unit. For example, it can employ a small, pyrotechnic gas generator, typically comprising a housing, a pyrotechnic igniter within the housing, and a release pin and release plate connected to the housing. At least a portion of the housing is located inside the inflation section 2021, and the release pin, release plate, etc., are connected to the restraint member 2022. The pyrotechnic igniter is activated by an electrical signal from the airbag control unit, causing a high-temperature, high-pressure gas to form within the housing. Under the pressure of this gas, the release pin, release plate, etc., are forced open, thereby releasing the restraint member 2022.

[0085] Of course, the controlled release mechanism can also be other structures, such as structures that use electromagnetically controlled release, and this application does not limit this.

[0086] By setting a controlled release mechanism, the release of the restraints 2022 can be determined based on control signals. At the beginning of a collision or even before the occupants have moved significantly, the restraints can be released based on pre-judgment information (such as the severity of the collision, the occupant's body type, and sitting posture), which helps to improve the initiative and intelligence of airbag protection.

[0087] Optionally, in some embodiments, multiple constraint members 2022 may be provided within the same inflatable portion 2021. Each constraint member 2022 is configured to have a different thickness after the inflatable portion 2021 is deployed in the initial state. Each constraint member 2022 is connected to the inflatable portion 2021 through a controlled release mechanism. This allows for step-by-step release, enabling multi-level adjustment of the thickness of the inflatable portion 2021, thereby further improving the safety, reliability, and accuracy of airbag protection.

[0088] like Figure 10 As shown, in a second aspect, embodiments of this application propose a control method for a seat assembly 10, applied to the seat assembly 10 described in the first aspect. The control method includes: Acquire collision signals from the side of the vehicle; Acquire the position signal of seat 100 to determine whether seat 100 is in a forward-facing or rear-facing seating state; When the seat 100 is in a forward-facing seating position, control the second airbag group 220 to fully deploy and control the lower airbag 202 of the first airbag group 210 to fully deploy. When the seat 100 is in a rear-facing position, the first airbag assembly 210 is fully deployed, and the lower airbag 202 of the second airbag assembly 220 is fully deployed.

[0089] This control method can be executed by the airbag control unit of the airbag module in the seat assembly 10, which is communicatively connected to the vehicle. The vehicle includes a collision sensing system, which may include at least one collision sensor for sensing vehicle collisions. The collision sensor acquires a collision signal and sends it to the airbag control unit. When the collision sensor senses a side collision with the vehicle, if the collision signal reaches the airbag module's deployment threshold, the airbag control unit controls the gas generators in each part of the airbag module to execute the deployment procedure according to this control method. The collision sensor can be any suitable type, such as a contact sensor like an accelerometer, pressure sensor, or contact switch, or it can be a radar, lidar, or vision sensing system.

[0090] The airbag control unit can be a microprocessor-based computer implemented through circuits, chips, or other electronic components. For example, it may include a processor, memory, etc. The memory may include memory for storing instructions executable by the processor, as well as memory for electronically storing data and / or databases. The airbag control unit and collision sensors can be connected to the vehicle's communication bus for signal transmission, but this is not a limited method.

[0091] The position signal of the seat 100 can be obtained by sensors on the seat 100, such as Hall sensors and encoders, or by the vehicle's visual sensing system, such as cameras, and sent directly or indirectly to the airbag control unit.

[0092] Through the above design, the airbag control unit can execute the corresponding airbag deployment strategy during a collision based on the position signal of the seat 100. This configuration allows the airbag module to execute a differentiated deployment strategy based on whether the seat 100 is facing forward or backward, ensuring that the airbag module provides appropriate cushioning and support for the occupant's head and torso regardless of whether the occupant is facing forward or forward-facing. This eliminates safety gaps caused by seat 100 rotation, thereby improving the adaptability and scalability of the seat assembly 10 and meeting the safety requirements of diverse seating methods under autonomous driving technology. Furthermore, the differentiated deployment strategy prevents secondary injuries to the occupant from the airbag, further enhancing vehicle safety and reliability.

[0093] like Figure 11 As shown, in some embodiments, the control method further includes: Obtain the body shape information of 100 occupants in the seats; Based on body type information, perform at least one of the following adjustment methods; First adjustment method: Determine the occupant's head position. When the seat 100 is in a forward-facing seating position, adjust the position of the upper airbag 201 of the second airbag group 220 to be opposite to the head position. When the seat 100 is in a rear-facing seating position, adjust the position of the upper airbag 201 of the first airbag group 210 to be opposite to the head position. Second adjustment method: Adjust the deployment thickness of the lower airbag 202 of the first airbag group 210 and the second airbag group 220.

[0094] In this embodiment, there are multiple ways to obtain the body shape information of the occupant of seat 100. For example, body shape information such as weight, body type, height, and sitting posture can be estimated through sensors in the seat, such as pressure sensor arrays and / or position and angle sensors installed in the base 120, seat back 110, and headrest 130. Alternatively, images of the occupant can be acquired through a visual sensing system such as an in-vehicle camera, and then body shape information such as weight, body type, height, and sitting posture can be obtained based on the images. The specific method can be flexibly selected according to the actual situation.

[0095] After obtaining body shape information, the first adjustment method can adjust the height position of the upper airbag 201 through the sliding mechanism 250, and the second adjustment method can adjust the deployment thickness of the lower airbag 202 through the controlled release mechanism.

[0096] This design allows the upper airbag 201 to dynamically adjust its initial position and coverage area based on the occupant's actual height and posture (head position relative to the seat back 110). This ensures the upper airbag 201 deploys precisely on the occupant's head, addressing the issue of insufficient airbag protection due to excessively tall or short occupants in related technologies. This facilitates adaptive head and neck protection, enhancing the reliability and stability of the airbag module's safety protection. Secondly, the height of the upper airbag 201 is adjustable via a sliding connection between the gas generator and the seat. This allows the same airbag module to be adapted to different vehicle models and seat heights without redesign; only the installation position and travel of the sliding connection need adjustment. This also improves the adaptability and versatility of the airbag module, reducing secondary development costs and time, and enabling platform-based development. Furthermore, the deployment thickness of the lower airbag 202 can be flexibly adjusted based on the occupant's body shape, further improving the safety, reliability, and accuracy of airbag protection. Furthermore, the aforementioned adaptive adjustment of height and thickness also helps to improve the intelligence and automation of the seat assembly 10, thereby increasing the usage scenarios and scalability of the seat assembly 10.

[0097] Thirdly, embodiments of this application propose a vehicle including the seat assembly 10 described in the first aspect. The vehicle can be any passenger or commercial vehicle, or a gasoline-powered vehicle, an electric vehicle, a hybrid vehicle, etc.

[0098] The vehicle in this embodiment uses the seat assembly 10 described in the first aspect, enabling the airbag module to execute a differentiated deployment strategy based on the forward or rearward orientation of the seat 100. This ensures that, regardless of whether the passenger is facing forward or face-to-face, the airbag module provides appropriate cushioning and support for the occupant's head and torso, eliminating safety gaps caused by seat 100 rotation. This improves the adaptability and scalability of the seat assembly 10, meeting the safety requirements of diverse seating methods under autonomous driving technology. Furthermore, the differentiated deployment strategy prevents secondary injuries to occupants from the airbag, further enhancing vehicle safety and reliability.

[0099] Through the above description of the embodiments, those skilled in the art will understand that, for the sake of convenience and brevity, only the division of the above functional modules is used as an example. In actual applications, the above functions can be assigned to different functional modules as needed, that is, the internal structure of the device can be divided into different functional modules to complete all or part of the functions described above.

[0100] In the embodiments provided in this application, it should be understood that the disclosed apparatus and methods can be implemented in other ways. For example, the apparatus embodiments described above are merely illustrative; for instance, the division of modules or units is only a logical functional division, and in actual implementation, there may be other division methods. For example, multiple units or components may be combined or integrated into another device, or some features may be ignored or not executed. Furthermore, the coupling or direct coupling or communication connection shown or discussed may be through some interfaces; the indirect coupling or communication connection between devices or units may be electrical, mechanical, or other forms.

[0101] The above description is merely a specific embodiment of this application, but the scope of protection of this application is not limited thereto. Any variations or substitutions that can be easily conceived by those skilled in the art within the scope of the technology disclosed in this application should be included within the scope of protection of this application. Therefore, the scope of protection of this application should be determined by the scope of the claims.

Claims

1. A seat assembly, characterized in that, include: The seat has a forward-facing seating position and a rear-facing seating position; The airbag module includes a first airbag group and a second airbag group disposed on opposite sides of the seat. Both the first airbag group and the second airbag group include at least one upper airbag and at least one lower airbag. When the seat is in a forward-facing seating position, the first airbag assembly is located on the side of the seat closest to the vehicle side panel. In the event of a collision, the second airbag assembly is configured to fully deploy, and the lower airbag of the first airbag assembly is configured to fully deploy. When the seat is in a rear-facing position, the first airbag assembly is located on the side of the seat closest to the interior space. In the event of a collision, the first airbag assembly is configured to fully deploy, and the lower airbag of the second airbag assembly is configured to fully deploy.

2. The seat assembly according to claim 1, characterized in that, The first airbag group includes a first upper airbag and a first lower airbag, and the second airbag group includes a second upper airbag and a second lower airbag; When the seat is in a forward-facing seating position, the second upper airbag, the first lower airbag, and the second lower airbag are configured to inflate and deploy. When the seat is in a rear-facing position, the first upper airbag, the first lower airbag, and the second lower airbag are configured to inflate and deploy.

3. The seat assembly according to claim 1, characterized in that, The airbag module further includes a first gas generator and a second gas generator, wherein the first gas generator is connected to the upper airbag of the first airbag group, and the second gas generator is connected to the upper airbag of the second airbag group. Both the first gas generator and the second gas generator are slidably connected to the seat so that the height of the upper airbags of the first airbag group and the second airbag group is adjustable.

4. The seat assembly according to claim 3, characterized in that, The upper and lower airbags of the first airbag group are connected by a first connector, and the upper and lower airbags of the second airbag group are connected by a second connector. The lengths of the first connector and the second connector are adjustable.

5. The seat assembly according to claim 4, characterized in that, The airbag module also includes a first cutting device and a second cutting device connected to the seat; When the seat is in a forward-facing seating position, the first cutting device is configured to cut the first connecting piece to separate the upper airbag and the lower airbag of the first airbag assembly. When the seat is in a rear-facing position, the second cutting device is configured to cut the second connector to separate the upper and lower airbags of the second airbag assembly.

6. The seat assembly according to claim 1, characterized in that, The airbag module further includes a third gas generator and a fourth gas generator. The third gas generator is connected to the lower airbag of the first airbag group, and the fourth gas generator is connected to the lower airbag of the second airbag group. The first airbag group and the second airbag group each have one lower airbag. After deployment, the lower airbag forms multiple inflatable parts that are interconnected along the height direction of the vehicle. At least one of the inflatable parts is provided with a restraint member inside. At least one end of the restraint member is detachably connected to the inflatable part so that the thickness of the inflatable part is adjustable along the left and right direction of the vehicle.

7. The seat assembly according to claim 6, characterized in that, The restraint is connected to the inflation part via a controlled release mechanism; The controlled release mechanism has an initial state and an actuated state. In the initial state, the controlled release mechanism connects the restraint member and the inflation part. In the actuated state, the controlled release mechanism releases the connection between the restraint member and the inflation part.

8. A control method for a seat assembly, applied to a seat assembly as described in any one of claims 1-7, characterized in that, The control method includes: Acquire collision signals from the side of the vehicle; Obtain the position signal of the seat to determine whether the seat is in a forward-facing or backward-facing seating state; When the seat is in a forward-facing seating position, the second airbag assembly is fully deployed, and the lower airbags of the first airbag assembly are fully deployed. When the seat is in a rear-facing position, the first airbag assembly is fully deployed, and the lower airbags of the second airbag assembly are fully deployed.

9. The control method according to claim 8, characterized in that, The control method further includes: Obtain the body shape information of the seat occupants; Based on the body shape information, perform at least one of the following adjustment methods; First adjustment method: Determine the occupant's head position. When the seat is in a forward-facing position, adjust the position of the upper airbag of the second airbag group relative to the head position. When the seat is in a rear-facing position, adjust the position of the upper airbag of the first airbag group relative to the head position. Second adjustment method: Adjust the deployment thickness of the lower airbags of the first airbag group and the second airbag group.

10. A vehicle, characterized in that, Includes the seat assembly as described in any one of claims 1-7.

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