Seat, vehicle and seat state control method

Abstract

The invention discloses a seat, a vehicle and a seat state control method, and belongs to the technical field of vehicles. The seat comprises a backrest, a seat basin and a pneumatic module, the pneumatic module comprises an air bag, the air bag is located at least one of a first position and a second position, the first position is the joint of the backrest and the seat basin, and the second position is the side, away from the seat basin, of the backrest; the airbag is configured to provide a lying posture support structure in an inflated state. The seat can effectively improve the lying posture comfort of the human body on the premise of not influencing the sitting posture comfort of the human body. Moreover, based on the inflation and deflation characteristics of the air bag, the air bag can be easily stored on the seat in the contraction state and can be inflated during application, storage and use are convenient, and the space in the automobile is saved.

Description

Technical Field

[0001] The present disclosure relates to the field of vehicle technology, and in particular to a seat, a vehicle, and a seat state control method. Background Art

[0002] The car seat comprises a backrest and a seat pan, wherein the backrest is rotatable relative to the seat pan so as to be switchable between a sitting position and a lying position.

[0003] The structure of the backrest of a car seat is usually designed according to the normal sitting posture, which means that when the backrest is in a lying position, the passenger's waist is usually suspended in the air, and the lying comfort is poor. The related art improves the lying comfort of the human body by designing the area of ​​the backrest corresponding to the waist into a flat shape, but this leads to a decrease in the sitting comfort of the human body. It can be seen that it is very necessary to make the seat have both good sitting comfort and lying comfort.

[0004] Public Content

[0005] In view of this, the present disclosure provides a seat, a vehicle and a seat state control method, which can solve the technical problems existing in the related art.

[0006] Specifically, the following technical solutions are included:

[0007] In one aspect, a seat is provided, comprising: a backrest, a seat pot, and a pneumatic module, wherein the pneumatic module comprises an airbag, wherein the airbag is located at least one of a first position and a second position, wherein the first position is a junction between the backrest and the seat pot, and the second position is a side of the backrest away from the seat pot;

[0008] The airbag is configured to provide a lying support structure in an expanded state.

[0009] The seat provided by the embodiment of the present disclosure, by arranging a pneumatic module, provides a lying support structure for the airbag in the expanded state, so as to be applied to the lying state of the seat. When the seat is in the lying state, the airbag located at the first position can support the waist of the human body at the junction between the backrest and the seat basin by using its lying support structure, thereby improving the waist comfort of the human body in the lying state. And, the airbag located at the second position can support the shoulders of the human body on the side of the backrest away from the seat basin by using its lying support structure, so as to avoid the shoulders hanging in the air, thereby improving the shoulder comfort of the human body in the lying state. When the seat is in the sitting state, the airbag is deflated to the contracted state, so as to avoid affecting the sitting comfort of the human body. It can be seen that the seat provided by the embodiment of the present disclosure can effectively improve the lying comfort of the human body without affecting the sitting comfort of the human body. In addition, based on the inflation and deflation characteristics of the airbag, it is easy to be stored on the seat in the contracted state, and it can be inflated when used, which is convenient for storage and use, and saves space in the car.

[0010] In some possible implementations, the airbag located at the first position is referred to as a first airbag, and the first airbag is configured so that when the backrest is in a lying position, the first airbag can fill the groove cavity between the backrest and the seat basin, and the lying support structure of the first airbag includes a first support surface for supporting the human waist.

[0011] When the seat back is in a lying position, especially in a flat position at a large angle, the expansion contour of the first airbag matches the contour of the groove between the backrest and the seat basin, so that the first airbag can fill the groove between the backrest and the seat basin, thereby effectively filling the gap between the seat and the human waist in the lying position, thereby achieving effective support for the human waist.

[0012] In some possible implementations, the lying support structure of the first airbag also includes: a first fitting surface and a second fitting surface, one of the first fitting surface and the second fitting surface fits against a side surface of the backrest close to the seat bowl, and the other fits against a side surface of the seat bowl close to the backrest.

[0013] In some possible implementations, the airbag located at the second position is referred to as a second airbag, and the second airbag is configured so that when the backrest is in a lying position, the second airbag can fill the gap between the backrest and the human shoulder, and the lying support structure of the second airbag includes a second support surface for supporting the human shoulder.

[0014] When the seat back is in a lying position, especially in a flat position at a large angle, the expansion contour of the second airbag matches the contour of the gap between the backrest and the human shoulder, thereby effectively filling the gap between the seat and the human shoulder in the lying position and achieving effective support for the human shoulder.

[0015] In some possible implementations, the airbag includes a plurality of air cavities, and a barrier structure is provided between any two adjacent air cavities, and the barrier structure has ventilation holes, so that the contour of the lying support structure corresponding to the airbag can be sufficiently close to the desired target contour.

[0016] In some possible implementations, the pneumatic module further includes: an air pipe, an air pump, and an air valve control component, the air bag and the air pump are connected through the air pipe, and the air valve control component is located in the air pipe;

[0017] The seat further comprises a control module, wherein the control module is electrically connected to the air pump and the air valve control component.

[0018] When used, the control module can control the opening or closing of the air pump, thereby realizing the inflation operation of the air pump into the airbag. In addition, the control module can control the opening, closing and opening size of the air valve control component, thereby realizing the adjustment of the inflation amount inside the airbag, so that the gas pressure inside the airbag reaches the set pressure threshold.

[0019] In some possible implementations, the pneumatic module further includes: a pressure sensor, the pressure sensor being located on the surface of the airbag and electrically connected to the control module;

[0020] The pressure sensor is used to detect the pressure signal applied to the airbag and transmit the pressure signal to the control module.

[0021] By using a pressure sensor to detect the pressure signal of the airbag and transmitting the pressure signal to the control module, the control module can control the pneumatic module to adjust the air volume of the airbag to the target air volume (for example, controlling the opening size of the air valve control component) according to the pressure signal, so that the airbag can provide good and comfortable support to the passengers when it is inflated. It can be seen that through the above arrangement, the seat can adjust the air volume of the airbag according to the weight and pressure of the passenger, so that it can obtain different gas pressures.

[0022] In some possible implementations, the airbag is arranged in a built-in manner;

[0023] Furthermore, when the airbag is in a contracted state, the airbag located at least one of the first position and the second position can be arranged into a hidden structure.

[0024] By placing the airbag in at least one of the first position and the second position on the seat, the airbag can be stably stored without affecting the aesthetics of the seat to prevent loss. Moreover, when the airbag is in a contracted state, the airbag can be arranged into a hidden structure so that the airbag exists in a hidden manner, which not only effectively avoids reducing the comfort of the seat sitting state, but also contributes to the aesthetics of the seat.

[0025] In some possible implementations, the hidden structure is obtained by rolling or folding the airbag.

[0026] In some possible implementations, the pneumatic module further includes a mask, which is detachably positioned in at least one of the first position and the second position, and is used to cover and hide the airbag.

[0027] By arranging a mask at the first position and / or the second position of the seat, it is not only possible to cover and hide the airbag, but also to facilitate the inflation of the airbag and the arrangement of the airbag in a deflated state so as to arrange it in a rolled or folded arrangement by disassembling the mask.

[0028] On the other hand, an embodiment of the present disclosure further provides a vehicle, comprising: a vehicle body and a plurality of seats located inside the vehicle body, at least one of the plurality of seats being any of the seats described above.

[0029] In another aspect, an embodiment of the present disclosure further provides a seat state control method, which is applied to any of the above-mentioned seats or the above-mentioned vehicles;

[0030] The seat state control method comprises:

[0031] Determine whether the seat back is in a reclining position;

[0032] If the backrest of the seat is in a lying position, the pneumatic module is controlled to inflate the airbag, and the airbag provides a lying support structure in the inflated state.

[0033] In some possible implementations, the pneumatic module further includes a pressure sensor;

[0034] The seat state control method further includes:

[0035] Using the pressure sensor to detect the pressure signal applied to the airbag;

[0036] According to the pressure signal, the pneumatic module is controlled to adjust the air volume of the airbag to a target air volume.

[0037] In some possible implementations, the seat state control method further includes:

[0038] If the backrest of the seat is not in a lying position, determining that the backrest of the seat is in a sitting position;

[0039] The airbag is prompted to maintain a contracted state, and / or the airbag is arranged into a hidden structure.

[0040] In some possible implementations, the seat further includes: a lumbar support, the lumbar support is located on the backrest, and the lumbar support includes an ejected state and a retracted state;

[0041] The seat state control method further includes: if the seat backrest is in a lying state, controlling the lumbar support to be in a retracted state; and, if the seat backrest is in a sitting state, controlling the lumbar support to be in an ejected state. BRIEF DESCRIPTION OF THE DRAWINGS

[0042] Figure 1 A schematic diagram of the structure of an exemplary chair in a sitting position provided by an embodiment of the present disclosure;

[0043] Figure 2 A schematic diagram of the structure of an exemplary seat in a lying position provided by an embodiment of the present disclosure;

[0044] Figure 3 A schematic diagram of the structure of an airbag in a seat provided by an embodiment of the present disclosure when the airbag is in a contracted state;

[0045] Figure 4 A schematic diagram of the structure of an airbag in a seat provided by an embodiment of the present disclosure when the airbag is in an expanded state;

[0046] Figure 5 A schematic diagram of the structure of an exemplary pneumatic module provided in an embodiment of the present disclosure;

[0047] Figure 6 A schematic diagram of the connection relationship between an exemplary pneumatic module and a control module provided in an embodiment of the present disclosure;

[0048] Figure 7 A schematic diagram of a winding arrangement structure of an exemplary airbag provided in an embodiment of the present disclosure;

[0049] Figure 8 A schematic diagram of the structure of an exemplary airbag in a flat-laying state provided by an embodiment of the present disclosure;

[0050] Fig. 9 A cross-sectional view of an exemplary first airbag in an expanded state provided in an embodiment of the present disclosure;

[0051] Fig.10 A cross-sectional view of an exemplary first airbag in an expanded state provided in an embodiment of the present disclosure;

[0052] Fig.11 A flowchart of an exemplary seat control method provided by an embodiment of the present disclosure;

[0053] Fig.12 Another exemplary seat control method flow chart provided for an embodiment of the present disclosure;

[0054] Fig.13 A flowchart of another exemplary seat control method provided for an embodiment of the present disclosure;

[0055] Fig.14 A logic flow chart of an exemplary seat state control method provided by an embodiment of the present disclosure;

[0056] Fig.15 A logic flow chart of another exemplary seat state control method provided by an embodiment of the present disclosure.

[0057] The reference numerals represent:

[0058] 100. Backrest;

[0059] 200. Sitz basin;

[0060] 300, pneumatic module;

[0061] 31. Airbag;

[0062] 301, first airbag; 3010, first supporting surface; 3011, first fitting surface; 3012, second fitting surface;

[0063] 302, second airbag; 3020, second support surface;

[0064] 311, air cavity; 312, barrier structure; 313, vent;

[0065] 32. Trachea; 33. Air pump; 34. Air valve control unit; 35. Pressure sensor; 36. Mask;

[0066] 400, control module;

[0067] 500, Lumbar support;

[0068] P1, first position; P2, first position. DETAILED DESCRIPTION

[0069] The following will be combined with the drawings in the embodiments of the present disclosure to clearly and completely describe the technical solutions in the embodiments of the present disclosure. Obviously, the described embodiments are part of the embodiments of the present disclosure, rather than all of the embodiments. Based on the embodiments in the present disclosure, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present disclosure.

[0070] Some exemplary embodiments are shown in the accompanying drawings. When the following description refers to the drawings, unless otherwise indicated, the same numbers in different drawings represent the same or similar elements. In the description of the embodiments of the present disclosure, it should be understood that some orientation terms, such as "upper", "lower", "front", "back", "vertical", "horizontal", "inside", "outside", etc., indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, which are only for the convenience of describing the embodiments of the present disclosure and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation on the embodiments of the present disclosure.

[0071] It should be noted that in the seat involved in the embodiment of the present disclosure, the backrest can be rotated relative to the seat basin, so that the angle between the backrest and the seat basin is variable, thereby allowing the seat to switch between a sitting state and a lying state. The sitting state of the seat involved in the embodiment of the present disclosure can also be considered as the sitting state of the backrest, and the lying state of the seat can also be considered as the lying state of the backrest.

[0072] As for the sitting posture of the seat, it only needs to meet the normal sitting posture of the passenger. For example, when the seat is in the sitting posture, the angle between the backrest and the seat basin can be 90°.

[0073] For the reclining posture of the seat, there are many kinds of reclining postures according to the angle between the backrest and the seat basin. For example, when the angle between the backrest and the seat basin is 120°-180°, or further 135°-180°, the postures corresponding to the seat at different angles can all be considered as reclining postures. This type of seat can also be called a reclining seat with a large backrest angle, for example, a zero-gravity seat.

[0074] The "human waist" involved in the embodiments of the present disclosure not only includes the waist area, but can also be further extended to include a part of the hip area, wherein the waist area is generally the part below the ribs and above the pelvis of the human body.

[0075] The “human shoulder” involved in the embodiments of the present disclosure includes the shoulder area, for example, the area where the shoulder blades are located, and the area between the two shoulder blades.

[0076] In the related art, the structure of the backrest of the car seat is usually designed according to the normal sitting and looking posture, and does not support the comfort of lying in a large-angle position of the backrest.

[0077] When the seat back is in a reclining position with a large angle, there are two comfort issues that need to be addressed: First, in order to fit the waist curve of the human body, when the seat is in a sitting position, the lower area of ​​the backrest (for example, the area where the waist support is located) is usually in a slightly protruding state. When the backrest angle increases to a reclining position, the protruding part will press against part of the waist of the reclining person, resulting in a significant sense of back pressure. In addition, there is an angular groove between the backrest and the seat basin, which will cause another part of the waist of the human body to be suspended, thereby reducing the comfort of the reclining position. Second, the shoulders of the human body lack support, especially the area between the two shoulder blades will be suspended, thereby reducing the comfort of the reclining position.

[0078] The related art improves the comfort of human body lying posture by designing the area of ​​the backrest corresponding to the waist into a flat shape, however, this leads to a decrease in the comfort of human body sitting posture. It can be seen that it is very necessary to make the seat have good sitting comfort and lying comfort.

[0079] In view of the technical problems existing in the related art, the present disclosure provides a seat, as shown in the attached Figure 1 As shown, the chair includes: a backrest 100, a seat pan 200, and a pneumatic module 300, wherein the pneumatic module 300 includes an airbag 31, and the airbag 31 is located at least one of a first position P1 and a second position P2, wherein the first position P1 is a junction between the backrest 100 and the seat pan 200, and the second position P2 is a side of the backrest 100 away from the seat pan 200. The airbag 31 is configured to provide a lying support structure in an expanded state.

[0080] The seat provided in the embodiment of the present disclosure has a backrest 100 that is rotatable relative to the seat basin 200, so that the angle between the backrest 100 and the seat basin 200 is adjustable, thereby allowing the seat to switch between a sitting position and a lying position.

[0081] The “joint between the backrest 100 and the seat basin 200” involved in the embodiment of the present disclosure is the connection area between the backrest 100 and the seat basin 200 , which may include an area on one side of the backrest 100 close to the seat basin 200 , and may also include an area on one side of the seat basin 200 close to the backrest 100 .

[0082] In some examples, when the chair is in a sitting position, the joint between the backrest 100 and the seat basin 200 does not contact the waist and / or buttocks of the human body, and this position is a non-contact area with the human body, forming a triangular space with the human body.

[0083] The "side of the backrest 100 away from the seat basin 200" involved in the embodiment of the present disclosure includes the area on the backrest 100 corresponding to the human shoulder, so as to ensure that when the backrest 100 is in a lying state, the airbag 31 located at this position supports the human shoulder, in particular, the suspended area between the shoulder blades on both sides.

[0084] The seat provided by the embodiment of the present disclosure, by arranging the pneumatic module 300, provides a lying support structure for the airbag 31 in the expanded state, so as to be applied to the lying state of the seat. When the seat is in the lying state, the airbag 31 located at the first position P1 can support the waist of the human body at the junction between the backrest 100 and the seat basin 200 by using its lying support structure, thereby improving the waist comfort of the human body in the lying state. And, the airbag 31 located at the second position P2 can support the shoulders of the human body on the side of the backrest 100 away from the seat basin 200 by using its lying support structure, so as to avoid the shoulders being suspended in the air, thereby improving the shoulder comfort of the human body in the lying state. When the seat is in the sitting state, the airbag 31 is deflated to the contracted state, so as to avoid affecting the sitting comfort of the human body. It can be seen that the seat provided by the embodiment of the present disclosure can effectively improve the lying comfort of the human body without affecting the sitting comfort of the human body. Furthermore, based on the inflation and deflation characteristics of the airbag 31, it can be easily stored on the seat in the deflated state and can be inflated when used. It is convenient to store and use and saves space in the vehicle.

[0085] In some examples, if the seat back 100 has a lumbar support, when the seat is in a reclining state, if the lumbar support is not withdrawn or retracted, the airbag 31 located at the first position P1 can also alleviate the back-up feeling caused by the backrest in some areas of the waist, while avoiding other parts of the waist from being suspended in the air, thereby achieving effective support for the waist.

[0086] In some implementations, such as the attached Figure 2 As shown, in the embodiment of the present disclosure, the airbag 31 located at the first position P1 is referred to as the first airbag 301. The first airbag 301 is configured such that when the backrest 100 is in a lying state, the first airbag 301 can fill the groove cavity between the backrest 100 and the seat basin 200, and the lying support structure of the first airbag 301 includes a first support surface 3010 for supporting the human waist.

[0087] When the seat back 100 is in a lying position, especially in a lying position at a large angle, the expansion profile of the first airbag 301 matches the profile of the groove between the backrest 100 and the seat basin 200, so that the first airbag 301 can fill the groove between the backrest 100 and the seat basin 200, thereby effectively filling the gap between the seat and the human waist in the lying position, thereby achieving effective support for the human waist.

[0088] As attached Figure 1As shown, one end of the first supporting surface 3010 of the first airbag 301 is tightly attached to the surface at the corresponding position on the backrest 100, and the other end of the first supporting surface 3010 is tightly attached to the surface at the corresponding position on the seat basin 200, and the attachment portion has a smooth transition. In this way, when the backrest 100 of the chair is in a lying state, a relatively flat supporting surface without depressions can be formed from the backrest 100 to the seat basin 200 to support the human body.

[0089] In some examples, the shape of the first support surface 3010 of the first airbag 301 can be a regular geometric shape or an irregular geometric shape. For example, in order to simplify the preparation process of the first airbag 301, the shape of the first support surface 3010 includes but is not limited to: a rectangular shape, an elliptical shape, a diamond shape, etc.

[0090] The first supporting surface 3010 of the first airbag 301 may be a flat surface or a surface with a massage structure. The massage structure may be a structure such as convex points or convex ribs that have a massage function.

[0091] In some examples, the lying support structure of the first airbag 301 also includes: a first fitting surface 3011 and a second fitting surface 3012, one of the first fitting surface 3011 and the second fitting surface 3012 is fitted to a side surface of the backrest 100 close to the seat basin 200, and the other is fitted to a side surface of the seat basin 200 close to the backrest 100.

[0092] For example, as shown in the attached Figure 2 As shown, the first fitting surface 3011 and the second fitting surface 3012 are directly connected, or indirectly connected through a transition structure, and the other ends of the first supporting surface 3010 and the second fitting surface 3012 away from each other are respectively connected to the two ends of the first supporting surface 3010.

[0093] By making the first fitting surface 3011 and the second fitting surface 3012 fit respectively on the surfaces of the backrest 100 and the seat basin 200 close to each other, it is ensured that the lying support structure of the first airbag 301 fully fills the groove cavity between the backrest 100 and the seat basin 200 and is supported itself, thereby providing a more stable support effect for the human waist.

[0094] In other implementations, the embodiment of the present disclosure refers to the airbag 31 located at the second position P2 as the second airbag 302. The second airbag 302 is configured so that when the backrest 100 is in a lying state, the second airbag 302 can fill the gap between the backrest 100 and the human shoulder, and the lying support structure of the second airbag 302 includes a second support surface 3020 for supporting the human shoulder.

[0095] When the seat back 100 is in a lying position, especially in a lying position at a large angle, the expansion profile of the second airbag 302 matches the profile of the gap between the backrest 100 and the human shoulder, thereby effectively filling the gap between the seat and the human shoulder in the lying position and achieving effective support for the human shoulder.

[0096] As attached Figure 2 As shown, both ends of the second support surface 3020 of the second airbag 302 are tightly attached to the surface of the corresponding shoulder on the backrest 100, and the attachment portion has a smooth transition. In this way, when the backrest 100 of the seat is in a lying state, the surface of the backrest 100 as a whole is a relatively flat support surface.

[0097] Of course, the second airbag 302 also has a third fitting surface, which is tightly fitted to the side surface of the backrest 100 away from the seat basin 200, so that its lying support structure fully fills the gap between the backrest 100 and the human shoulder, and itself can be supported, thereby providing a more stable support effect for the human shoulder.

[0098] In some examples, the shape of the second support surface 3020 of the second airbag 302 can be a regular geometric shape or an irregular geometric shape. For example, in order to simplify the preparation process of the second airbag 302, the shape of the second support surface 3020 includes but is not limited to: a rectangular shape, an elliptical shape, a diamond shape, etc.

[0099] The second supporting surface 3020 of the second airbag 302 may be a flat surface or a surface with a massage structure. The massage structure may be a structure such as convex points or convex ribs that have a massage function.

[0100] In the embodiment of the present disclosure, in order to make the contours of the lying support structures corresponding to the first airbag 301 and the second airbag 302 close enough to the respective desired target contours, as shown in the attached Figure 8 , Attachment Fig. 9 and attached Fig.10 As shown, the airbag 31 may include a plurality of air chambers 311, and a barrier structure 312 is provided between any two adjacent air chambers 311, and a vent hole 313 is provided on the barrier structure 312. The vent hole 313 is used to connect two adjacent air chambers 311 to realize the inflation and deflation of all air chambers 311.

[0101] By providing a plurality of barrier structures 312 in the airbag 31, the barrier structures 312 can be used to form a plurality of air cavities 311 on the one hand, and on the other hand, Fig.10 It can be seen that when the airbag 31 is inflated, the barrier structure 312 is pulled (which can be considered as an inner pulling structure), so as to facilitate shaping the inflated shape of the airbag 31 so that the contour of its lying support structure is sufficiently close to the desired target contour.

[0102] In some examples, the airbag 31 includes a plurality of barrier structures 312 , and the plurality of barrier structures 312 are sequentially distributed along a first direction, wherein the first direction is the same as a distribution direction of the backrest 100 and the seat basin 200 .

[0103] By distributing the plurality of barrier structures 312 in sequence along the first direction, correspondingly, the distribution direction of the plurality of air cavities 311 is also along the first direction.

[0104] By adjusting the lengths of different air cavities 311 , the expansion state of the location of the current air cavity 311 can be adjusted, and finally the overall expansion state of the airbag 31 formed by the multiple air cavities 311 can be shaped.

[0105] The length direction of the air cavity 311, that is, the length direction of the barrier structure 312, is the same as the distribution direction between the support surface and the fitting surface of the airbag 31. That is, one end of the barrier structure 312 extends to the support surface of the airbag 31, and the other end of the barrier structure 312 extends to the fitting surface of the airbag 31 (refer to Fig.10 ).

[0106] The supporting surface of the airbag 31 mentioned above is the first supporting surface 3010 or the second supporting surface 3020 mentioned above; and the fitting surface of the airbag 31 is the first fitting surface 3011, the second fitting surface 3012 or the third fitting surface mentioned above.

[0107] When the expanded shape of the airbag 31 is a regular geometric shape, for example, for the second airbag 302 located at the second position P2, its expanded shape can be rectangular, elliptical, etc., and the lengths of the plurality of barrier structures 312 can be the same.

[0108] When the expanded shape of the airbag 31 is an irregular geometric shape, for example, for the first airbag 301 located at the first position P1 , the lengths of the plurality of barrier structures 312 are not completely the same or are different from each other.

[0109] As attached Fig. 9 As shown, for the first airbag 301 located at the first position P1, it is used to fill the groove between the backrest 100 and the seat pan 200, and the cross-sectional profile of the groove is triangular, so that the cross-sectional profile of the lying support structure of the first airbag 301 is also triangular accordingly. In this case, the length of one or more barrier structures 312 located in the middle area can be longer, and the lengths of the multiple barrier structures 312 located in the two side areas starting from the middle area are shorter.

[0110] For example, Fig. 9In the example, the length of a barrier structure 312 located in the middle position is the longest (the middle position can be considered as the center position of the junction of the backrest 100 and the seat basin 200, referred to as the junction center), and the barrier structures 312 located on both sides gradually become shorter in the direction away from the junction center of the backrest 100 and the seat basin 200. This is conducive to making the cross-sectional profile of the lying support structure of the first airbag 301 triangular and maintaining strong structural stability.

[0111] In the embodiment of the present disclosure, the structural forms of the plurality of barrier structures 312 may be the same, partially the same, or different from each other. The structural form of the barrier structure 312 along its length direction may be a straight strip structure or a wavy strip structure. The structural form of the barrier structure 312 may be selected according to the contour of the lying support structure of the airbag 31.

[0112] The more the number of barrier structures 312 in the airbag 31, the more accurately the contour of the lying support structure of the airbag 31 is shaped, but this will affect the inflation and deflation speed of the airbag 31 to a certain extent. In the embodiment of the present disclosure, the number of barrier structures 312 is designed to simultaneously meet the following conditions: the contour of the lying support structure is as similar as possible to the target contour, and the inflation and deflation speed of the airbag 31 meets the set inflation and deflation rate threshold.

[0113] The barrier structure 312 has a vent hole 313. The number of vent holes 313 on each barrier structure 312 can be one or more, such as two, three, four, etc. The number of vent holes 313 on multiple barrier structures 312 can be the same or different. The shape of the vent hole 313 includes but is not limited to at least one of a circle, a rectangle, an ellipse, and a waist shape.

[0114] In some examples, for any two adjacent barrier structures 312, the vents 313 on the two adjacent barrier structures 312 are arranged in a staggered manner, that is, the projection of the vents 313 on the first barrier structure 312 onto the surface of the second barrier structure 312 does not overlap with the vents 313 on the second barrier structure 312. This helps to quickly and evenly disperse the gas to the multiple air cavities 311, and also helps to improve the support strength of the airbag 31 in the expanded state.

[0115] In some examples, the airbag 31 can be prepared by a plastic film material using a hot pressing molding process. For example, a vent hole 313 can be set at a corresponding position on the film material, and the film material with the vent hole 313 is connected to the capsule film material of the airbag 31 by a hot pressing process to form a barrier structure 312. Then, the various parts of the capsule film material of the airbag 31 are hot pressed to achieve connection, and finally the airbag 31 is obtained. This method has the advantages of simple process and easy operation, and the barrier structure 312 formed has strong structural stability and low cost. Of course, it is not excluded that the airbag film material can also be sealed with sewing thread to form the barrier structure 312.

[0116] The disclosed embodiment provides an exemplary description of the structure and arrangement of the airbag 31 in the pneumatic module 300. Figure 3 To Attachment Figure 6 As shown, the pneumatic module 300 provided in the embodiment of the present disclosure also includes: an air pipe 32, an air pump 33, and an air valve control component 34. The airbag 31 and the air pump 33 are connected through the air pipe 32, and the air valve control component 34 is located in the air pipe 32; the seat also includes a control module 400, and the control module 400 is electrically connected to the air pump 33 and the air valve control component 34.

[0117] When used, the control module 400 can control the opening or closing of the air pump 33, thereby realizing the inflation operation of the air pump 33 into the airbag 31. In addition, the control module 400 can control the opening, closing and opening size of the air valve control member 34, thereby realizing the adjustment of the inflation amount inside the airbag 31, so that the gas pressure inside the airbag 31 reaches the set pressure threshold.

[0118] The air valve control component 34 is also called an air valve controller. Exemplarily, the air valve control component 34 may include a plurality of valve bodies, each of which may be connected to and control a corresponding air bag 31 .

[0119] The air pipe 32 includes an air intake section and an air delivery section, wherein the air pump 33 is connected to the air intake of the air valve control component 34 through the air intake section of the air pipe 32, and the air outlet of the corresponding valve body of the air valve control component 34 and the air bag 31 are connected through the air delivery section of the air pipe 32.

[0120] When multiple airbag components are provided in the seat (the airbag components include at least one of the first airbag 301 and the second airbag 302), the air valve control component 34 is provided with multiple valve bodies for the multiple airbag components, and correspondingly, the air delivery sections of the air pipe 32 are also provided with multiple valve bodies, so that each airbag component is connected to the corresponding valve body of the air valve control component 34 through the corresponding air delivery section of the air pipe 32. In this case, one air pump 33 and one air intake section of the air pipe 32 can be shared.

[0121] In some examples, the air tube 32 can be made of a flexible polymer material, such as polytetrafluoroethylene, so that the air tube 32 is not easily deformed, which can reduce pressure loss and ensure that the gas pressure in the airbag 31 is stable.

[0122] In some examples, the air pipe 32, such as the air intake section of the air pipe 32, has an air processing structure, which includes but is not limited to a muffler, a filter, etc. The muffler is used to reduce the airflow noise of the air pump 33 when it is working, and the filter is used to filter impurities in the air.

[0123] When different passengers have different weights, each passenger exerts different pressure on the inflated airbag 31. In order to ensure that each passenger can obtain the same sense of support from the inflated airbag 31, in some implementations, such as the attached Figure 5 To Attachment Figure 6 As shown, the pneumatic module 300 provided in the embodiment of the present disclosure further includes: a pressure sensor 35, which is located on the surface of the airbag 31 and is electrically connected to the control module 400. The pressure sensor 35 is used to detect the pressure signal received by the airbag 31 and transmit the pressure signal to the control module 400.

[0124] By using the pressure sensor 35 to detect the pressure signal received by the airbag 31 and transmitting the pressure signal to the control module 400, the control module 400 can control the pneumatic module 300 to adjust the gas volume of the airbag 31 to the target gas volume (for example, controlling the opening size of the air valve control member 34) according to the pressure signal, so that the airbag 31 provides a good and comfortable support feeling to the passengers when it is inflated. It can be seen that through the above arrangement, the seat can adjust the gas volume of the airbag 31 according to the weight and pressure of the passenger, so that it can obtain different gas pressures.

[0125] The number of the pressure sensor 35 can be one or more. When the multiple pressure sensors 35 are evenly distributed on the support surface of the airbag 31, the pressure signal received by the airbag 31 can be obtained more accurately and reliably. Figure 1 The example shows that a plurality of pressure sensors 35 are evenly distributed on the support surface of the airbag 31 .

[0126] In some examples, the pressure sensor 35 provided in the embodiments of the present disclosure is a surface pressure sensor to enhance the pressure sensor 35's sensitivity to passenger weight and pressure.

[0127] In some examples, the pressure sensor 35 provided in the embodiments of the present disclosure is a flexible pressure sensor, which has the characteristic of steplessly sensing pressure and can accurately sense changes in pressure data on the surface of the airbag 31 .

[0128] In some examples, the airbag 31 involved in the embodiment of the present disclosure can also be configured to have a massage function (without affecting its lying support effect). Under the control of the control module 400 and the air valve control component 34, the airbag 31 can perform dynamic massage movements (including dynamic swelling and micro-contraction), thereby giving the airbag 31 a massage function and further enhancing the user experience.

[0129] For example, the movement of the airbag 31 is controlled by controlling the opening and closing frequency of the corresponding valve body in the air valve control member 34, so that it can meet the massage function and obtain massage effects of different modes.

[0130] In some implementations, such as the attached Figure 3 As shown, the airbag 31 involved in the embodiment of the present disclosure is arranged in a built-in manner, and when the airbag 31 is in a contracted state, the airbag 31 located at least one of the first position P1 and the second position P2 can be arranged into a hidden structure.

[0131] For example, the airbag 31 at the first position P1 is the first airbag 301, which can be arranged into a hidden structure in the contracted state. Further, the airbag 31 at the second position P2 is the second airbag 302, which can be arranged into a hidden structure in the contracted state.

[0132] By placing the airbag 31 in at least one of the first position P1 and the second position P2 on the seat, the airbag 31 can be stably stored without affecting the aesthetics of the seat to prevent loss. Moreover, when the airbag 31 is in a contracted state, the airbag 31 can be arranged into a hidden structure so that the airbag 31 exists in a hidden manner, which not only effectively avoids reducing the comfort of the seat sitting state, but also contributes to the aesthetics of the seat.

[0133] In some examples, the hidden structure mentioned above is obtained by rolling or folding the airbag 31, for example Figure 7 A rolled arrangement of the airbag 31 is illustrated.

[0134] The spatial volume of the airbag 31 can be reduced by either a winding arrangement or a folding arrangement, thereby facilitating its hiding and arrangement at a corresponding position of the seat.

[0135] In some examples, the first airbag 301 located at the first position P1 can be arranged as a hidden structure. This is because, when the seat is in a sitting state, the first position P1 of the seat, that is, the junction between the backrest 100 and the seat pan 200, does not contact the waist and / or buttocks of the human body. This position is a non-contact area of ​​the human body and forms a triangular space with the human body. Figure 1The first position P1 is usually slightly protruded, which allows the first position P1 of the seat to have more storage space to store the deflated first airbag 301. In this way, when the first airbag 301 is arranged as a hidden structure, it is easier to hide in this position without affecting the beauty of the seat.

[0136] In some examples, such as the attached Figure 3 As shown, the pneumatic module 300 further includes a mask 36 , which is detachably located at at least one of the first position P1 and the second position P2 , and is used to cover and hide the airbag 31 .

[0137] By setting the mask 36 at the first position P1 and / or the second position P2 of the seat, it is not only possible to cover and hide the airbag 31, but also by disassembling the mask 36, it is convenient to inflate the airbag 31, and it is convenient to arrange the airbag 31 in a contracted state so that it can be rolled up or folded.

[0138] The detachability of the mask 36 includes but is not limited to the following embodiments: the first part of the mask 36 is detachably connected to the second part of the mask 36, thereby exposing the airbag 31 located therein, which is conducive to the flattening of the airbag 31. The first part of the mask 36 and the second part of the mask 36 can be fixedly arranged at corresponding positions on the seat respectively. Or. The mask 36 is detachably connected relative to the seat, thereby exposing and flattening the airbag 31 to facilitate its expansion. The above-mentioned detachable connection method can be a Velcro connection, a button connection, a lock connection, a zipper connection, etc.

[0139] In some examples, the mask 36 has an opening configured to allow a user to insert a hand therein to roll or fold the airbag 31 in a collapsed state.

[0140] In order to improve the convenience of the above-mentioned winding operation or folding operation, the opening can be an elastic opening, which is in a closed state under normal conditions and in an open state when stretched.

[0141] The material of the mask 36 can be designed to be the same as the surface material of the seat to achieve a hiding effect. Alternatively, the mask 36 can also be made of an elastic material.

[0142] On the other hand, an embodiment of the present disclosure further provides a vehicle, comprising: a vehicle body and a plurality of seats located inside the vehicle body, at least one of the plurality of seats being any of the seats involved in the above-mentioned embodiment of the present disclosure.

[0143] The vehicle provided by the embodiment of the present disclosure has all the advantages of the seats involved above.

[0144] The vehicle provided by the embodiment of the present disclosure has a seat backrest that is rotatable relative to the seat pan, so that the vehicle can switch between a sitting position and a lying position.

[0145] In some examples, when the vehicle is in a sitting position, the airbag 31 in the pneumatic module 300 is in a contracted state to avoid affecting the comfort of a normal sitting position. Further, the contracted airbag 31 can be rolled or folded to form a hidden structure, so that the airbag 31 is hidden and arranged to improve the aesthetics of the seat.

[0146] In some examples, when the vehicle is in a lying position, especially, in a lying position at a large angle, the airbag 31 in the pneumatic module 300 is in an expanded state to provide a lying support structure, thereby improving the lying comfort.

[0147] Furthermore, when the airbag 31 is in an expanded state, the pressure sensor 35 can be used to detect the pressure signal exerted on the airbag 31. According to the pressure signal, the pneumatic module 300 is controlled to adjust the air volume of the airbag 31 to the target air volume, so that passengers of different weights can get a better support feeling.

[0148] Exemplarily, the vehicle includes but is not limited to a car, such as a hatchback, a sedan, and the like.

[0149] On the other hand, an embodiment of the present disclosure further provides a seat state control method, which is applied to any of the above-mentioned seats or any of the above-mentioned vehicles.

[0150] Fig.11 A flowchart of a seat state control method provided by an exemplary embodiment of the present application is shown, and the method can at least be executed by a computer device, as shown in the attached Fig.11 Combined with Fig.14 As shown, the seat state control method includes:

[0151] Step S1, determining whether the seat backrest 100 is in a lying position.

[0152] In some examples, the pneumatic module 300 provided in the embodiment of the present disclosure also includes: an air pipe 32, an air pump 33, and an air valve control component 34, the airbag 31 and the air pump 33 are connected through the air pipe 32, and the air valve control component 34 is located in the air pipe 32; the seat also includes a control module 400, and the control module 400 is electrically connected to the air pump 33 and the air valve control component 34.

[0153] In some examples, step S1 determines whether the seat backrest 100 is in a lying state, and further includes: according to the angle sensor arranged in the seat, obtaining the position signal of the backrest 100 and transmitting the position signal to the control module 400, the control module 400 determines whether the backrest 100 is in a lying state according to the position signal, especially in a lying flat state at a large angle (for example, the angle between the backrest 100 and the seat basin 200 is 135°-180°).

[0154] Step S2: If the seat backrest 100 is in a lying position, control the pneumatic module 300 to inflate the airbag 31, and enable the airbag 31 to provide a lying support structure in the inflated state.

[0155] Through step S2, the seat is put into a lying state, especially in a lying state at a large angle, the airbag 31 expands and provides a lying support structure, thereby supporting at least one of the waist and shoulders of the human body, thereby improving the lying comfort of the seat.

[0156] In some examples, the pneumatic module 300 further includes a mask 36 , which is detachably located at at least one of the first position P1 and the second position P2 , and is used to cover and hide the airbag 31 .

[0157] Step S2, if the backrest 100 of the seat is in a lying state, control the pneumatic module 300 to inflate the airbag 31, and make the airbag 31 provide a lying support structure in the inflated state, and also includes: if the backrest 100 of the seat is in a lying state, dismantle the mask 36 and expose the airbag 31, and flatten the airbag 31. Control the pneumatic module 300 to inflate the airbag 31, and make the airbag 31 provide a lying support structure in the inflated state.

[0158] Of course, when it is necessary to switch the seat back 100 to a sitting position, the pneumatic module 300 is controlled to shrink the airbag 31 . Furthermore, the shrunken airbag 31 is arranged into a hidden structure.

[0159] In some examples, the pneumatic module 300 also includes a pressure sensor 35, as shown in the attached Fig.12 Combined with Fig.14 As shown, the seat state control method provided by the embodiment of the present disclosure also includes:

[0160] Step S3: Using the pressure sensor 35 to detect the pressure signal received by the airbag 31, and according to the pressure signal, controlling the pneumatic module 300 to adjust the air volume of the airbag 31 to the target air volume.

[0161] Exemplarily, step S3 further includes using the pressure sensor 35 to detect the pressure signal received by the airbag 31, and transmitting the pressure signal to the control module 400. The control module 400 controls the pneumatic module 300 to adjust the air volume of the airbag 31 to the target air volume according to the pressure signal. It can be seen that through the above arrangement, the seat can adjust the air volume of the airbag 31 according to the weight and pressure of the passenger, so that it can obtain different gas pressures, so that the airbag 31 can provide good and comfortable support to the passenger when it is inflated.

[0162] In some implementations, such as the attached Fig.13 Combined with Fig.14 As shown, the seat state control method provided by the embodiment of the present disclosure also includes:

[0163] Step S4: If the seat backrest 100 is not in the lying position, confirm that the seat backrest 100 is in the sitting position.

[0164] Normally, the seat backrest 100 switches between a lying state and a sitting state. If it is determined that the seat backrest 100 is not in the lying state, it can be assumed that the seat backrest 100 is in the sitting state.

[0165] Step S5, prompting the airbag 31 to maintain the contracted state, and / or arranging the airbag 31 into a hidden structure.

[0166] When the seat back 100 is in a sitting position, the airbag 31 is prompted to remain in a contracted state, so that the pneumatic module 300 cannot start the inflation operation.

[0167] In some examples, the pneumatic module 300 further includes a mask 36, which is detachably located at at least one of the first position P1 and the second position P2, and is used to cover and hide the airbag 31. When the airbag 31 is in a contracted state, the airbag 31 located at at least one of the first position P1 and the second position P2 can be arranged into a hidden structure, for example, by winding or folding. It can be seen that when it is confirmed that the seat back 100 is in a sitting state, due to the winding or folding arrangement of the airbag 31 and the covering of the mask 36, the airbag 31 cannot be normally inflated to the expanded state.

[0168] In some implementations, the chair provided by the embodiment of the present disclosure further includes: a lumbar support 500 , which is located on the backrest 100 , and the lumbar support 500 includes an ejected state and a retracted state.

[0169] Fig.15 A seat state control method is shown, see Fig.15The seat state control method provided by the embodiment of the present disclosure further includes: if the seat backrest 100 is in a lying state, controlling the lumbar support 500 to be in a retracted state; and, if the seat backrest 100 is in a sitting state, controlling the lumbar support 500 to be in an ejected state.

[0170] For example, the control module 400 determines that the backrest 100 of the seat is in a reclining state, and then the control module 400 controls the lumbar support 500 to retract to the retracted state. Also, the control module 400 controls the pneumatic module 300 to inflate the airbag 31, and the airbag 31 provides a reclining support structure in the inflated state. The order of executing the retracting action of the lumbar support 500 and the inflating action of the airbag 31 is not limited, and the two can be performed one after the other or simultaneously.

[0171] In this case, the lumbar support 500 is retracted to avoid the human body from feeling the back being pushed up, and the airbag 31 is used to provide support for the human body's waist alone, thereby achieving a comfortable lying position for the human body's waist.

[0172] For example, the control module 400 determines that the backrest 100 of the seat is in a sitting position, and then the control module 400 controls the lumbar support 500 to be ejected to an ejected state. Also, the control module 400 controls the pneumatic module 300 to shrink the airbag 31. The order of executing the ejection action of the lumbar support 500 and the shrinkage action of the airbag 31 is not limited, and the two can be performed one after the other or simultaneously.

[0173] On the other hand, the embodiment of the present disclosure also provides a control device for a seat, which includes a control module 400, wherein the control module 400 is used to control the seat backrest 100 to switch between a sitting state and a lying state, and the control module 400 is also used to control the pneumatic module 300 in the seat so that the airbag 31 switches between a contracted state and an expanded state.

[0174] Exemplarily, the control module 400 controls the backrest 100 of the seat to be in a sitting position, and controls the airbag 31 in the pneumatic module 300 to be in a contracted state. The control module 400 controls the backrest 100 of the seat to be in a lying position, in particular, a large-angle lying position, and controls the airbag 31 in the pneumatic module 300 to be in an expanded state to provide a lying support structure.

[0175] The embodiment of the present disclosure also provides a computer device, which includes a memory and a processor; at least one program code is stored in the memory, and the program code is loaded and executed by the processor to implement the above-mentioned seat state control method.

[0176] The controller may include one or more processing cores, such as a 4-core processor, an 8-core processor, etc. The controller may be implemented in at least one hardware form of DSP (Digital Signal Processing), FPGA (Field-Programmable Gate Array), and PLA (Programmable Logic Array). The controller may also include a main processor and a coprocessor. The main processor is a processor for processing data in the awake state, also known as a CPU (Central Processing Unit); the coprocessor is a low-power processor for processing data in the standby state. In some embodiments, the processor may be integrated with a GPU (Graphics Processing Unit), which is responsible for rendering and drawing the content that needs to be displayed on the display screen. In some embodiments, the controller may also include an AI (Artificial Intelligence) processor, which is used to process computing operations related to machine learning.

[0177] The memory may include one or more computer-readable storage media, which may be non-transitory. The memory may also include high-speed random access memory, and non-volatile memory, such as one or more disk storage devices, flash memory storage devices. In some embodiments, the non-transitory computer-readable storage medium in the controller is used to store at least one instruction, which is used to be executed by the controller to implement the seat state control method provided in the method embodiment of the present application.

[0178] The embodiment of the present disclosure further provides a computer-readable storage medium, in which a computer program is stored. The computer program is used to be executed by a processor to implement the seat state control method as described above.

[0179] The embodiment of the present disclosure also provides a chip, which includes a programmable logic circuit and / or program instructions. When the chip is running, it is used to implement the seat state control method as described above.

[0180] The embodiment of the present disclosure also provides a computer program product or a computer program, which includes computer instructions stored in a computer-readable storage medium. A processor reads and executes the computer instructions from the computer-readable storage medium to implement the seat state control method as described above.

Claims

1. A seat, characterized in that: The seat comprises: a backrest (100), a seat basin (200), and a pneumatic module (300); the pneumatic module (300) comprises an airbag (31); the airbag (31) is located at least one of a first position (P1) and a second position (P2); the first position (P1) is a junction between the backrest (100) and the seat basin (200); and the second position (P2) is a side of the backrest (100) away from the seat basin (200); The airbag (31) is configured to provide a lying support structure in an expanded state.

2. The seat according to claim 1, characterized in that: The airbag (31) located at the first position (P1) is called a first airbag (301). The first airbag (301) is configured so that when the backrest (100) is in a lying state, the first airbag (301) can fill the groove cavity between the backrest (100) and the seat basin (200), and the lying support structure of the first airbag (301) includes a first support surface (3010) for supporting the waist of a human body.

3. The seat according to claim 2, characterized in that: The lying support structure of the first airbag (301) also includes: a first fitting surface (3011) and a second fitting surface (3012), wherein one of the first fitting surface (3011) and the second fitting surface (3012) fits to a side surface of the backrest (100) close to the seat basin (200), and the other fits to a side surface of the seat basin (200) close to the backrest (100).

4. The seat according to claim 1, characterized in that: The airbag (31) located at the second position (P2) is called a second airbag (302). The second airbag (302) is configured so that when the backrest (100) is in a lying state, the second airbag (302) can fill the gap between the backrest (100) and the shoulder of the human body, and the lying support structure of the second airbag (302) includes a second support surface (3020) for supporting the shoulder of the human body.

5. The seat according to any one of claims 1 to 4, characterized in that: The airbag (31) comprises a plurality of air cavities (311), and a barrier structure (312) is provided between any two adjacent air cavities (311), and a vent hole (313) is provided on the barrier structure (312).

6. The seat according to any one of claims 1 to 5, characterized in that: The pneumatic module (300) further comprises: an air pipe (32), an air pump (33), and an air valve control component (34); the air bag (31) and the air pump (33) are connected via the air pipe (32); and the air valve control component (34) is located on the air pipe (32); The seat further comprises a control module (400), wherein the control module (400) is electrically connected to the air pump (33) and the air valve control component (34).

7. The seat according to claim 6, characterized in that The pneumatic module (300) further comprises: a pressure sensor (35), wherein the pressure sensor (35) is located on the surface of the airbag (31) and is electrically connected to the control module (400); The pressure sensor (35) is used to detect the pressure signal received by the airbag (31) and transmit the pressure signal to the control module (400).

8. The seat according to any one of claims 1 to 7, characterized in that: The airbag (31) is arranged in a built-in manner; Furthermore, when the airbag (31) is in a contracted state, the airbag (31) located at least one of the first position (P1) and the second position (P2) can be arranged into a hidden structure.

9. The seat according to claim 8, characterized in that The hidden structure is obtained by rolling or folding the airbag (31).

10. The seat according to claim 9, characterized in that The pneumatic module (300) further comprises a mask (36), wherein the mask (36) is detachably located at at least one of the first position (P1) and the second position (P2), and the mask (36) is used to cover and hide the airbag (31).

11. A vehicle, characterized in that: The vehicle comprises: a vehicle body and a plurality of seats located inside the vehicle body, at least one of the plurality of seats being the seat according to any one of claims 1-10.

12. A seat state control method, characterized in that: The seat state control method is applied to the seat according to any one of claims 1 to 10 or the vehicle according to claim 11; The seat state control method comprises: Determining whether the seat backrest (100) is in a lying position; If the backrest (100) of the seat is in a lying position, the pneumatic module (300) is controlled to expand the airbag (31), and the airbag (31) provides a lying support structure in the expanded state.

13. The seat state control method according to claim 12, characterized in that: The pneumatic module (300) further includes a pressure sensor (35); The seat state control method further includes: Using the pressure sensor (35) to detect the pressure signal received by the airbag (31); According to the pressure signal, the pneumatic module (300) is controlled so that the air volume of the airbag (31) is adjusted to a target air volume.

14. The seat state control method according to claim 12, characterized in that: The seat state control method further includes: If the backrest (100) of the seat is not in a lying position, confirming that the backrest (100) of the seat is in a sitting position; The airbag (31) is prompted to remain in a contracted state, and / or the airbag (31) is arranged into a hidden structure.

15. The seat state control method according to any one of claims 12 to 14, characterized in that: The chair further comprises: a lumbar support (500), wherein the lumbar support (500) is located on the backrest (100), and the lumbar support (500) comprises an ejected state and a retracted state; The seat state control method further comprises: if the seat backrest (100) is in a lying state, controlling the lumbar support (500) to be in a retracted state; and, if the seat backrest (100) is in a sitting state, controlling the lumbar support (500) to be in an ejected state.

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