A vehicle seat, a vehicle, and a control method

Abstract

This application relates to the field of vehicle technology and discloses a vehicle seat, a vehicle, and a control method. The vehicle seat includes a backrest assembly, a main headrest assembly, and side headrest assemblies. The main headrest assembly is disposed above the backrest assembly, and the side headrest assemblies are connected to the backrest assembly or the vehicle body. The side headrest assemblies have at least a first posture relative to the backrest assembly. When the side headrest assemblies are in the first posture, the main headrest assembly and the side headrest assemblies are spaced apart along the width direction of the backrest assembly, and the main headrest assembly, side headrest assembly, and backrest assembly form a concave structure adapted to the user's head. Applying the technical solution of this application can effectively support and protect the head of a person leaning to the side, improving comfort and experience.

Description

Technical Field

[0001] This application relates to the field of vehicle technology, and more particularly to a vehicle seat, a vehicle, and a control method. Background Technology

[0002] To provide comfort for passengers' heads, vehicle seats are typically equipped with headrests in the upper part of the seat. However, current headrests can only be adjusted vertically, not forward or backward, especially in the rear seats, where they cannot be reclined. This forces passengers to maintain a relatively upright posture when leaning back, preventing them from achieving a comfortable resting position. Furthermore, if the head is tilted back without support, it is prone to swaying during travel and may bump into the side of the vehicle's interior, resulting in a poor experience. Summary of the Invention

[0003] This application provides a vehicle seat, a vehicle, and a control method that can effectively support and protect the head of a person leaning to the side, thereby improving comfort and experience.

[0004] In a first aspect, embodiments of this application provide a vehicle seat, including a backrest assembly, a main headrest assembly, and a side headrest assembly. The main headrest assembly is disposed above the backrest assembly, and the side headrest assembly is connected to the backrest assembly or the vehicle body. The side headrest assembly has at least a first posture relative to the backrest assembly. When the side headrest assembly is in the first posture, the main headrest assembly and the side headrest assembly are spaced apart along the width direction of the backrest assembly, and the main headrest assembly, the side headrest assembly, and the backrest assembly form a concave structure adapted to the user's head.

[0005] The vehicle seat provided in this application features a side headrest assembly. This side headrest assembly has at least a first posture relative to the backrest assembly. When the side headrest assembly is in this first posture, the main headrest assembly and the side headrest assembly are spaced apart along the width direction of the backrest assembly, and a concave structure is formed between the main headrest assembly, the side headrest assembly, and the backrest assembly. This concave structure provides support to the head of a side-leaning occupant from three aspects: the main headrest assembly, the side headrest assembly, and the backrest assembly, ensuring stable fixation and support for the head in a reclining posture. Compared to related technologies, this provides excellent support and protection for the head in a reclining posture, improving comfort and overall experience.

[0006] In some possible implementations, the side headrest assembly is movably connected to the backrest assembly or the vehicle body, and the side headrest assembly moves relative to the backrest assembly to switch between a first posture and a second posture; when the side headrest assembly is in the second posture, the side headrest assembly combines with the backrest assembly to form a backrest area.

[0007] In some possible implementations, the backrest assembly has a storage section corresponding to the position of the side headrest assembly, and the side headrest assembly is slidably connected to the storage section. When the side headrest assembly is in the second posture, the side headrest assembly is attached to the storage section.

[0008] In some possible implementations, the side headrest assembly includes a backrest and a connecting rod fixed to the backrest. The outer contour of the backrest is adapted to the storage portion. The storage portion of the backrest assembly has a guide hole. The connecting rod can slide into the guide hole. The backrest moves along the extension direction of the connecting rod to switch between a first posture and a second posture.

[0009] In some possible implementations, the vehicle seat also includes a side drive unit that is driven to the side headrest assembly for moving the side headrest assembly relative to the backrest assembly to switch between a first posture and a second posture.

[0010] In some possible implementations, the main headrest assembly includes a fixed pillow and a movable pillow. The fixed pillow is fixed above the backrest assembly, and the movable pillow is located on the side of the fixed pillow near the side headrest assembly. The movable pillow can move toward or away from the side headrest assembly to adjust the width of the recessed structure between the main headrest assembly and the side headrest assembly.

[0011] In some possible implementations, the main headrest assembly is tilted toward one side of the side headrest assembly, and / or the side headrest assembly is tilted toward one side of the main headrest assembly, such that the distance between the two opposite sidewalls in the inner wall of the recess structure gradually increases from bottom to top.

[0012] Secondly, this application also provides a vehicle, including a vehicle body, wherein the vehicle body is provided with the vehicle seats according to any one of the first aspects.

[0013] The vehicle described in this application, having a vehicle seat in the vehicle body, has the same technical effect, namely, it can provide good head support and protection for leaning occupants, thereby improving comfort and experience.

[0014] Thirdly, this application also provides a control method applied to the vehicle of the second aspect, the method comprising:

[0015] Acquire control signals;

[0016] The side headrest assembly is positioned in the first posture according to the control signal;

[0017] The control signal responds to the input command to begin a side-lying rest or to the first condition that the human body is in a side-lying resting posture.

[0018] The control method of this application receives a command to begin reclining or a first condition for the human body to be in a reclining posture, and then obtains a control signal. Based on this control signal, the side headrest assembly can be controlled to be in the first posture, thereby providing good support and protection for the head of the person reclining. The command to begin reclining can be actively input by the person in the vehicle; the first condition can be determined by certain conditions, such as when the person in the vehicle is in a reclining posture and needs head support, and the side headrest assembly is automatically adjusted to the first posture. Therefore, the control method of this application can effectively support and protect the head of the person reclining, improving comfort and experience, and can be manually or automatically adjusted to a comfortable reclining posture, further enhancing the user experience.

[0019] In some possible implementations, the main headrest assembly includes a fixed headrest and a movable headrest. The side headrest assembly is controlled to be in a first posture according to a control signal. The control method further includes:

[0020] Control the movement of the movable pillow toward the side headrest assembly;

[0021] Detect the pressure value within the concave structure and determine whether it exceeds a preset threshold;

[0022] If the pressure value inside the concave structure is greater than the preset threshold, record the size value of the concave structure. Attached Figure Description

[0023] Figure 1 A schematic diagram of the structure of the side headrest assembly of the vehicle seat provided in the embodiments of this application when it is in a first posture;

[0024] Figure 2 A schematic diagram of the front view of the side headrest assembly of the vehicle seat provided in the embodiments of this application when the passenger is in a first posture and leaning to the side;

[0025] Figure 3 A schematic diagram of the side of the vehicle seat side headrest assembly provided in the embodiments of this application when the passenger is in a first posture and leaning to the side;

[0026] Figure 4 A schematic diagram of the structure of the side headrest assembly of the vehicle seat provided in the embodiments of this application when it is in the second posture;

[0027] Figure 5 This application provides a schematic diagram of the side headrest assembly of a vehicle seat in a second posture when the passenger is leaning to the side.

[0028] Figure 6 A schematic diagram illustrating the connection between the side headrest assembly and the backrest assembly of a vehicle seat provided in an embodiment of this application;

[0029] Figure 7This is a schematic diagram of the structure of the side button of the vehicle seat provided in an embodiment of this application;

[0030] Figure 8 A schematic diagram of the structure of the main headrest assembly for a vehicle seat provided in this application embodiment, including a movable pillow;

[0031] Figure 9 for Figure 8 A magnified view of a portion of the image;

[0032] Figure 10 A schematic diagram of the force analysis of the passenger's head when the side headrest assembly of the vehicle seat provided in the embodiment of this application is in the first posture and the passenger is leaning to the side;

[0033] Figure 11 A schematic diagram of the structure of the main headrest assembly of the vehicle seat provided in this application embodiment, showing the installation of a pressure sensor;

[0034] Figure 12 A schematic diagram of a pressure sensor installed on the side headrest assembly of a vehicle seat according to an embodiment of this application;

[0035] Figure 13 This is a schematic diagram of the control flow of the control method provided in the embodiments of this application.

[0036] Figure label:

[0037] 1-Backrest assembly; 11-Storage section; 12-Guide hole; 13-Frame; 14-Guide bracket; 15-Guide sleeve;

[0038] 2-Main headrest assembly; 21-Fixed headrest; 22-Moving headrest; 23-Blinding component; 24-Main buttons;

[0039] 3-Side headrest assembly; 31-Backrest component; 32-Connecting rod;

[0040] 4-Concave structure;

[0041] 5- Soft backing layer;

[0042] 6-Pressure sensor. Detailed Implementation

[0043] To make the objectives, technical solutions, and advantages of the embodiments of this application clearer, the specific technical solutions of this application will be further described in detail below with reference to the accompanying drawings of the embodiments of this application. The following embodiments are used to illustrate this application, but are not intended to limit the scope of this application.

[0044] In the embodiments of this application, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of indicated technical features. Therefore, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of the embodiments of this application, unless otherwise stated, "multiple" means two or more.

[0045] Furthermore, in the embodiments of this application, directional terms such as "upper," "lower," "left," and "right" are defined relative to the positions in which the components are schematically placed in the accompanying drawings. It should be understood that these directional terms are relative concepts, used for relative description and clarification, and can change accordingly depending on the position of the components in the accompanying drawings.

[0046] In the embodiments of this application, unless otherwise explicitly specified and limited, the term "connection" should be interpreted broadly. For example, "connection" can mean a fixed connection, a detachable connection, or an integral part; it can mean a direct connection or an indirect connection through an intermediate medium.

[0047] In embodiments of this application, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such a process, method, article, or apparatus. Without further limitation, an element defined by the phrase "comprising one..." does not exclude the presence of other identical elements in the process, method, article, or apparatus that includes that element.

[0048] In the embodiments of this application, the terms "exemplary" or "for example" are used to indicate that something is an example, illustration, or description. Any embodiment or design that is described as "exemplary" or "for example" in the embodiments of this application should not be construed as being more preferred or advantageous than other embodiments or design. Specifically, the use of the terms "exemplary" or "for example" is intended to present the relevant concepts in a specific manner.

[0049] This application provides an embodiment of a vehicle, but does not limit the type of vehicle. Exemplarily, in this application embodiment, a vehicle can refer to a sedan, SUV, sport utility vehicle (SUV), multi-purpose vehicle (MPV), truck, bus, public bus, etc. In this application embodiment, a vehicle can refer to a gasoline-powered vehicle, a new energy vehicle, a hybrid electric vehicle, or a vehicle powered by a traction power supply system, such as a trolleybus.

[0050] The vehicle in this embodiment includes a vehicle body, and a vehicle seat is provided inside the vehicle body. The vehicle seat has been redesigned to provide good head support and protection for occupants leaning to the side, thereby improving comfort and experience.

[0051] This application also provides a vehicle seat that can be installed in a vehicle where seating is required, for example, as a driver's seat, front passenger seat, second-row seat, or rear seat.

[0052] For details, please refer to Figure 1 , Figure 2 and Figure 3 The vehicle seat includes a backrest assembly 1, a main headrest assembly 2, and a side headrest assembly 3. The main headrest assembly 2 is positioned above the backrest assembly 1, and the side headrest assembly 3 is connected to the backrest assembly 1 or the vehicle body. The side headrest assembly 3 has at least a first posture relative to the backrest assembly 1. When the side headrest assembly 3 is in the first posture, the main headrest assembly 2 and the side headrest assembly 3 are spaced apart along the width direction of the backrest assembly 1. The main headrest assembly 2, the side headrest assembly 3, and the backrest assembly 1 form a concave structure 4 that is adapted to the user's head, thereby allowing the concave structure 4 to be adapted to the user's headrest.

[0053] The vehicle seat provided in this application features a side headrest assembly 3. This side headrest assembly 3 has at least a first posture relative to the backrest assembly 1. When the side headrest assembly 3 is in this first posture, the main headrest assembly 2 and the side headrest assembly 3 are spaced apart along the width direction of the backrest assembly 1. The main headrest assembly 2, the side headrest assembly 3, and the backrest assembly 1 form a recessed structure 4. This recessed structure 4 provides support to the head of a side-leaning occupant from three aspects: the main headrest assembly 2, the side headrest assembly 3, and the backrest assembly 1, ensuring stable fixation and support for the head in a reclining posture. Compared to related technologies, this provides excellent support and protection for the head in a reclining posture, improving comfort and overall experience.

[0054] It should be noted that the backrest assembly 1 can have dimensions in three directions, including the width extending horizontally, the height along the vertical direction, and the overall thickness. The vehicle seat provided in this application is to be installed in a vehicle. Generally, when a vehicle seat is installed in a vehicle, the width direction of the vehicle seat is consistent with the width direction of the vehicle.

[0055] For details, please refer to Figure 3 The side headrest assembly 3 is in the first posture, which allows the passenger's head to tilt back when resting, greatly improving the comfort of rest.

[0056] The vehicle seat in this application embodiment has a side headrest assembly 3 with at least a first posture. That is, as long as the side headrest assembly 3 can achieve the first posture, whether it has other postures or how many other postures there are should be included in the embodiments of this application.

[0057] For example, in some embodiments, the side headrest assembly 3 has only one first posture, the side headrest assembly 3 is fixedly connected to the backrest assembly 1, and the main headrest assembly 2, the side headrest assembly 3 and the backrest assembly 1 form a recessed structure 4.

[0058] In other embodiments, the side headrest assembly 3 has a second posture, which differs from the first posture, thereby changing the positional relationship between the main headrest assembly 2, the side headrest assembly 3, and the backrest assembly 1. For details, please refer to... Figure 4 and Figure 5 The diagram illustrates one implementation in which the side headrest assembly 3 is movably connected to the backrest assembly 1 or the vehicle body, and the side headrest assembly 3 moves relative to the backrest assembly 1 to switch between a first posture and a second posture; when the side headrest assembly 3 is in the second posture, the side headrest assembly 3 combines with the backrest assembly 1 to form a backrest area.

[0059] It should be noted that the second posture of the side headrest assembly 3 is different from the first posture. The first posture is to provide head support when the passenger needs to lean to the side, while the second posture allows the side headrest assembly 3 to be folded up when the passenger does not need to lean to the side, thus preserving the appearance or interior space. For example, the upper edge of the side headrest assembly 3 is not higher than the upper edge of the backrest assembly 1, so that the main headrest assembly 2, the side headrest assembly 3, and the backrest assembly 1 cannot form a concave structure 4 that fits the user's head. At the same time, the combination of the side headrest assembly 3 and the backrest assembly 1 can provide a wider backrest area.

[0060] For example, in some embodiments, when the side headrest is in the second posture, the side headrest can cooperate with the backrest assembly 1 to form part of the backrest assembly 1. Specifically, please refer to... Figure 1 and Figure 4 The backrest assembly 1 has a storage section 11 at the position of the corresponding side headrest assembly 3. The side headrest assembly 3 is slidably connected to the storage section 11. When the side headrest assembly 3 is in the second posture, the side headrest assembly 3 is attached to the storage section 11.

[0061] In this way, when passengers do not need to lean back to rest, the side headrest assembly 3 can be combined with the storage part 11, so that the side headrest assembly 3 and the backrest assembly 1 form a complete backrest support area, which has a good appearance and is more conducive to the back support of passengers.

[0062] In some embodiments, the switching between the first and second postures of the side headrest assembly 3 is achieved as follows, see [link to relevant documentation]. Figure 1 and Figure 4 The side headrest assembly 3 includes a backing member 31 and a connecting rod 32 fixed to the backing member 31. The outer contour of the backing member 31 is adapted to the storage part 11. A guide hole 12 is provided in the clearance area 11 of the backrest assembly 1. The connecting rod 32 can slide into the guide hole 12. The backing member 31 moves along the extension direction of the connecting rod 32 to switch between a first posture and a second posture. That is, through the cooperation of the connecting rod 32 and the guide hole 12, the backing member 31 of the side headrest assembly 3 can move along the extension direction of the connecting rod 32. Thus, the backing member 31 of the side headrest assembly 3 can extend out of the backrest assembly 1 to form a recessed structure 4 with the main headrest assembly 2 and the backrest assembly 1, or it can retract into the backrest assembly 1 to form an integral backrest support area with the backrest assembly 1.

[0063] The switching between the first and second postures of the side headrest assembly 3 can be achieved in many ways. For example, in some other embodiments, the side headrest assembly 3 and the backrest assembly 1 can slide through a slider guide or extend and retract through an elastic element.

[0064] Taking the connection rod 32 and the guide hole 12 as an example, the specific setting method is described in detail.

[0065] Please see Figure 1 In some embodiments, the upper end of the connecting rod 32 is fixed to the abutment 31, and the lower end extends into the guide hole 12. The extension direction of the connecting rod 32 is parallel to the extension direction of the abutment 31 toward the main headrest assembly 2, and is not parallel to the longitudinal extension direction of the backrest assembly 1. The connecting rod 32 gradually moves away from the main headrest assembly 2 from bottom to top.

[0066] The direction of movement of the abutment 31 is affected by the extension direction of the connecting rod 32. In order to facilitate the movement of the abutment 31 relative to the backrest assembly 1, the extension direction of the connecting rod 32 is not parallel to the longitudinal extension direction of the backrest assembly 1. That is, the connecting rod 32 gradually moves away from the main headrest assembly 2 from bottom to top. Moreover, the extension direction of the abutment 31 towards the main headrest assembly 2 is also gradually moving away from the main headrest assembly 2 from bottom to top. This makes it easier for the abutment 31 to fit the passenger's head.

[0067] To facilitate the provision of guide holes 12 and to provide sufficient support, please refer to [reference needed]. Figure 6 In some embodiments, the backrest assembly 1 includes a frame 13 and a cushion (not shown in the figure, but can be referenced). Figure 1 The backrest assembly 1 (the part covered by the outer surface) and the guide frame 14, the frame 13 is used to connect with the vehicle body to provide support for the vehicle seat, the cushion is fixed on the frame 13, the guide frame 14 is fixed on the frame 13 and has guide holes 12 formed thereon.

[0068] It should be noted that the guide frame 14 is fixed to the frame 13, which can be achieved by welding to ensure structural strength.

[0069] To improve the stability of the abutment 31 during movement, please refer to Figure 6 There are two connecting rods 32, which are arranged parallel and spaced apart. The guide frame 14 is provided with two guide sleeves 15 corresponding to the two connecting rods 32. The guide sleeves 15 have guide holes 12. The two connecting rods 32 are slidably inserted into the guide holes 12 of the two guide sleeves 15 respectively. The arrangement of two connecting rods 32 and two guide holes 12 can balance the force and prevent jamming.

[0070] In some embodiments of the vehicle seat, the backrest assembly 1 is manually controlled to change between a first posture and a second posture.

[0071] In other embodiments of the vehicle seat, the backrest assembly 1 can be electrically controlled to change between a first posture and a second posture. For example, the switching between the first and second postures of the backrest assembly 1 is achieved by an electrically controllable power component such as a motor.

[0072] As an example, in one electrically controlled implementation, the vehicle seat also includes a side drive unit that is driveably connected to the side headrest assembly 3 for driving the side headrest assembly 3 to move relative to the backrest assembly 1 to switch between a first posture and a second posture.

[0073] Specifically, the side drive component includes a motor and a transmission assembly. The motor is connected to the side headrest assembly 3 via the transmission assembly to drive the side headrest assembly 3 to move relative to the backrest assembly 1. The transmission assembly includes any one of a lead screw and nut mechanism, a gear and rack mechanism, a crank and slider mechanism, and a worm gear mechanism.

[0074] It should be noted that electric control can be achieved through active control such as buttons, touch screens, and voice recognition, or it can be achieved through intelligent control based on facial recognition and certain conditions set by the system.

[0075] For example, in some embodiments, the vehicle seat also includes a side control unit electrically connected to the side drive unit for receiving instructions and controlling the side drive unit to drive the movement of the side headrest assembly 3.

[0076] Specifically, the side controls include side buttons, which are located on the vehicle seat or the vehicle body.

[0077] Please see Figure 7 This illustrates one configuration of the side buttons, which includes a memory button and four directional buttons arranged around the memory button according to their corresponding control orientations.

[0078] In some embodiments of the vehicle seat of this application, the main headrest assembly 2 is a fixed structure that is fixed above the backrest assembly 1 to provide head support for the passenger when sitting upright, wherein the relative positions of the main headrest assembly 2 and the backrest assembly 1 remain unchanged.

[0079] In some other embodiments of the vehicle seat of this application, at least a portion of the main headrest assembly 2 is movable relative to the backrest assembly 1 and can move toward the side headrest assembly 3. In this way, the gap between the side headrest assembly 3 and the main headrest assembly 2 can be adjusted by the movement of at least a portion of the main headrest assembly 2, thereby forming concave structures 4 of different sizes to meet the different needs of different passengers and improve the user experience.

[0080] For an example, please refer to Figure 8 and Figure 9 The main headrest assembly 2 includes a fixed pillow 21 and a movable pillow 22. The fixed pillow 21 is fixed above the backrest assembly 1, and the movable pillow 22 is located on the side of the fixed pillow near the side headrest assembly 3. The movable pillow 22 can move toward or away from the side headrest assembly 3 to adjust the width of the recessed structure 4 between the main headrest assembly 2 and the side headrest assembly 3.

[0081] In this way, the movable pillow 22 can move toward or away from the side headrest assembly 3, which can adjust the width of the concave structure 4 between the main headrest assembly 2 and the side headrest assembly 3, adapting to the head size requirements of various passengers, further ensuring that each passenger can have stable head support when reclining, and greatly improving the experience.

[0082] Similar to the adjustment of the side headrest assembly 3, in some embodiments, the movable pillow 22 is positioned by manual control of its movement.

[0083] In other embodiments, the movable headrest 22 is positioned by electrically controlled movement. For example, the movement of the movable headrest 22 is achieved by an electrically controllable power component such as a motor. Specifically, the vehicle seat also includes a main drive component, which is connected to the movable headrest 22 for driving the movable headrest 22 to move toward or away from the side headrest assembly 3.

[0084] In order to realize the movement of the motor-driven movable pillow 22, in some embodiments, the main driving component includes a motor and a transmission assembly. The motor is connected to the side headrest assembly 3 through the transmission assembly to drive the side headrest assembly 3 to move relative to the backrest assembly 1. The transmission assembly includes any one of a lead screw and nut mechanism, a gear and rack mechanism, a crank and slider mechanism, and a worm gear mechanism.

[0085] To prevent internal components (such as sliding linkages, or the aforementioned motor or transmission components) from being exposed during the movement of the movable pillow 22, thus affecting the appearance and facilitating dust accumulation, or to prevent the user's head from hitting the internal components, therefore, in some embodiments, please refer to... Figure 9 An extendable shield 23 is connected between the fixed pillow 21 and the movable pillow 22. When there is a gap between the fixed pillow 21 and the movable pillow 22, the shield 23 is used to shield the transmission assembly.

[0086] It should be noted that the covering part 23 can be a covering part made of a flexible or soft material, such as leather, fabric, etc.

[0087] Of course, on this basis, when the abutment 31 of the side headrest assembly 3 moves, the internal components (such as connecting rod 32, motor, transmission assembly, etc.) may be exposed. Similarly, in order to avoid the exposure of the internal components, in some embodiments, a component that can cover is provided between the abutment 31 of the side headrest assembly 3 and the backrest assembly 1.

[0088] In some embodiments, the electrically controlled movement of the movable headrest 22 includes a main control unit electrically connected to a main drive unit, which is used to receive instructions and control the main drive unit to drive the movement of the movable headrest assembly.

[0089] Please see Figure 9 In some embodiments, the movement of the movable pillow 22 of the main headrest assembly 2 can be controlled by the main button 24. The main control component includes the main button 24, which is disposed on the fixed pillow 21 or the vehicle body.

[0090] The main button settings can be customized as needed. Please refer to the example provided. Figure 9 The main button 24 is a press button that can control the movement of the movable pillow 22 by pressing it. Pressing includes possible button modes such as long press, short press, and double press, which can control different movements of the movable pillow 22.

[0091] For easy alignment of the recessed structure 4 with the passenger's head, please refer to [link / reference needed]. Figure 10 The main headrest assembly 2 is inclined toward the side of the side headrest assembly 3, and / or the side of the side headrest assembly 3 is inclined toward the side of the main headrest, so that the distance between the two opposite sidewalls of the inner wall of the recessed structure 4 gradually increases from bottom to top. The distance between the two opposite sidewalls of the recessed structure 4 gradually increases from bottom to top, thereby adapting to the approximately spherical passenger head support.

[0092] Please see Figure 10When the passenger's headrest rests in the recessed structure 4, the recessed structure 4 provides support to the head of the side-lying passenger from three aspects: the main headrest assembly 2, the side headrest assembly 3, and the backrest assembly 1. From the perspective of force analysis, the head can be subjected to forces from three directions: the support force F1 of the backrest assembly 1 on the bottom of the head, the support force F2 of the side headrest assembly 3 on the head, and the support force F3 of the main headrest assembly 2 on the head. Among them, F1 overcomes part of the gravity G and is vertically upward. The direction of F2 is perpendicular to the side surface of the side headrest assembly 3 facing the head and is inclined upward. It can be divided into F21 in the water direction and F22 in the vertical direction. The direction of F3 is perpendicular to the side surface of the main headrest assembly 2 facing the head and is inclined upward. It can be divided into F31 in the water direction and F32 in the vertical direction.

[0093] The concave structure 4 provides support for the head through forces F1, F2, and F3; the clamping force on the head includes the horizontal components of F2 and F3, F21 and F31, which generate clamping force on the head when the car turns left or right or bumps; the force supporting the weight of the head includes the forces F22 and F32 generated by F2 and F3 in the opposite direction to gravity G, as well as F1. The sum of F22, F32, and F1 is equal to G but in the opposite direction, thus supporting the weight of the head.

[0094] Therefore, due to the inclined contact surfaces of the side headrest assembly 3 and the main headrest assembly 2, F2 and F3 can generate support forces of F22 and F32, forming multi-point support for the head, including F1, dispersing the support force, making the head evenly stressed, and improving the comfort of the support contact.

[0095] To further improve the comfort of the head support, please refer to [link / reference]. Figure 11 and Figure 12 The inner surface of the recessed structure 4 is provided with a soft abutment layer 5. This includes the side of the main headrest assembly 2 facing the side headrest assembly 3, the side of the side headrest assembly 3 facing the main headrest assembly 2, and the surface area of ​​the backrest assembly 1 corresponding to the top portion of the recessed structure 4. Any one or more of these three parts may be provided with the soft abutment layer 5, or all of them may be provided with the soft abutment layer 5. The soft abutment layer 5 may be a soft foam layer embedded in the corresponding position, and the thickness of this soft foam layer may be 10 mm.

[0096] For easier control, please refer to some embodiments. Figure 11 and Figure 12A pressure sensor 6 is installed within the recessed structure 4. The pressure sensor 6 can detect the pressure value at the recessed structure 4, and this pressure value can be used to determine the user's leaning state. For example, when the pressure value is zero, the user is not resting their head here and is in a non-leaning resting state; the magnitude of the pressure value can be used as a reference for the user's sleep level, etc.

[0097] To achieve intelligent control, some embodiments of the vehicle seat in this application include a controller (control module). This controller can control and adjust the movable headrest 22 of the side headrest assembly 3 and / or the main headrest assembly 2 based on available signals or instructions. The controller can be a separate unit or integrated into the vehicle's main control system.

[0098] This application also provides a control method, implemented using the vehicle seat described in the above embodiments. Please refer to [link / reference needed]. Figure 13 The control methods include:

[0099] S1: Obtain control signals;

[0100] S2: Control the side headrest assembly 3 to be in the first posture according to the control signal;

[0101] The control signal responds to the input command to begin a side-lying rest or to the first condition that the human body is in a side-lying resting posture.

[0102] The control method of this application receives a command to begin reclining or a first condition for the human body to be in a reclining posture, and then obtains a control signal. Based on this control signal, the side headrest assembly 3 can be controlled to be in the first posture, thereby providing good support and protection for the head of the person reclining. The command to begin reclining can be actively input by the person in the vehicle; the first condition can be determined by certain conditions, such as when the person in the vehicle is in a reclining posture and needs head support, and the side headrest assembly 3 is automatically adjusted to the first posture. Therefore, the control method of this application can effectively support and protect the head of the person reclining, improving comfort and experience, and can be manually or automatically adjusted to a comfortable reclining posture, further enhancing the user experience.

[0103] The input command to begin reclining can be received via input, such as a button, touchscreen, or voice. The first condition for the human body to be in a reclining posture can be met by using other structures and functions to realize certain special characteristics of the human body, thereby determining whether the human body is in a reclining posture. For example, in-vehicle video equipment can be used to collect image information and artificial intelligence can be used to determine whether the human body is in a tilted sitting position; or, the pressure value detected by the pressure sensor 6 in the vehicle seat embodiment can be used to determine whether the human head is in an upward reclining state.

[0104] Furthermore, in some embodiments, the determination of whether the human body is in a reclining resting posture is based on the above two dimensions. Specifically, the first condition includes:

[0105] The sitting posture of the human body is determined by the image information, and the human body is sitting at an angle.

[0106] Obtain the pressure value at point 4 of the concave structure, and the pressure value is greater than the preset threshold.

[0107] The preset threshold is a critical value pre-set within the system. When the pressure exceeds this value, it can be determined that the head is not supported by the user's own strength and is in a side-lying resting state.

[0108] To achieve greater intelligence, the system can memorize the corresponding size and pressure values ​​for each passenger and make intelligent adjustments accordingly. In some embodiments, before controlling the side headrest assembly 3 to be in the first posture according to the control signal, the control method includes:

[0109] Facial information is identified through image information.

[0110] When facial information is stored, the side headrest assembly 3 is positioned in the first posture according to the stored record;

[0111] When there is no stored record of facial information, the control side headrest component 3 is in the first posture and memorizes the current position information, which is then matched with the facial information to form a stored record.

[0112] In this way, facial recognition and memory storage are performed through image information, and the specific position of the side headrest component 3 in the first posture when each face is leaning back is matched and stored one by one to form a storage record; when the passenger leans back to rest again, the side headrest component 3 can be directly adjusted to the specific position of the first posture corresponding to the passenger's face recognition based on the previous storage record, thus intelligently realizing the position memory function.

[0113] It should be noted that when the vehicle seat includes a movable headrest 22, in some embodiments, the position information of the movable headrest 22 may also be stored, and the movable headrest 22 may be moved to the position corresponding to the face recognition based on the stored information. In fact, the specific position of the side headrest assembly 3 in the first posture and the position information of the movable headrest 22 are controlled and stored simultaneously.

[0114] For example, in some embodiments, the main headrest assembly 2 includes a fixed pillow 21 and a movable pillow 22, and controlling the side headrest assembly 3 to be in a first posture according to a control signal includes:

[0115] The control side headrest assembly 3 is in the first posture;

[0116] The movable pillow moves toward the side headrest assembly;

[0117] Detect the pressure value within the concave structure and determine whether it exceeds a preset threshold;

[0118] If the pressure value inside the concave structure is greater than the preset threshold, record the size value of the concave structure.

[0119] In this way, the position information of the user's corresponding movable pillow 22 can be stored, so that the position of the movable pillow 22 can be coordinated with the side headrest component 3 to form a specific size memory that adapts to the user, making it convenient to directly adjust to that position next time, greatly improving the user's comfort.

[0120] The side headrest assembly 3 of the vehicle seat is movably connected to the backrest assembly 1 or the vehicle body. The side headrest assembly 3 moves relative to the backrest assembly 1 to switch between a first posture and a second posture. When the side headrest assembly 3 is in the second posture, the upper edge of the side headrest assembly 3 is not higher than the upper edge of the backrest assembly 1. In this structure, in some embodiments, after controlling the side headrest assembly 3 to be in the first posture according to the control signal, the control method further includes:

[0121] When the control signal responds to the input of the end of the side-lying rest command or the first condition of the human body being in the side-lying rest posture is not met, the control side headrest assembly 3 is positioned in the second posture.

[0122] In this way, when the command to end the side-lying rest is input or the first condition of the human body being in the side-lying rest posture is not met, the passenger does not need to rest side-lying. The side headrest assembly 3 can be placed in the second posture to ensure back support when the vehicle seat is in an upright position.

[0123] Similarly, in some embodiments, the movable pillow 22 also has an initial backrest position. When the control signal responds to the input of an end-of-rest instruction or the first condition of the human body being in a resting posture is not met, the movable pillow 22 is controlled to be in the initial backrest position.

[0124] In addition, the control method of this application embodiment can also combine vehicle speed and navigation information to set scenarios such as bumpy road sections and mountain road sections. By comparing the actual pressure with the system preset pressure, the motor is automatically driven to adjust, thereby providing different fixing forces in different scenarios and better fixing the head.

[0125] The above are merely preferred embodiments of this application and do not limit the patent scope of this application. Any equivalent structural or procedural transformations made using the content of this application's specification and drawings, or direct or indirect applications in other related technical fields, are similarly included within the patent protection scope of this application.

Claims

1. A vehicle seat characterized by comprising: include: Backrest assembly; The main headrest assembly is located above the backrest assembly. A side headrest assembly is connected to the backrest assembly or the vehicle body. The side headrest assembly has at least a first posture relative to the backrest assembly. When the side headrest assembly is in the first posture, the main headrest assembly and the side headrest assembly are spaced apart along the width direction of the backrest assembly. The sides of the main headrest assembly and the side headrest assembly facing each other along the width direction and the upper surface of the backrest assembly form a concave structure that is adapted to the user's head. The side headrest assembly is movably connected to the backrest assembly or the vehicle body, and the side headrest assembly is movable relative to the backrest assembly to switch between a first posture and a second posture. When the side headrest assembly is in the second posture, the side headrest assembly combines with the backrest assembly to form a backrest area.

2. The vehicle seat according to claim 1, characterized by The backrest assembly has a storage section corresponding to the position of the side headrest assembly. The side headrest assembly is slidably connected to the storage section. When the side headrest assembly is in the second posture, the side headrest assembly is attached to the storage section.

3. The vehicle seat according to claim 2, characterized by The side headrest assembly includes a backrest member and a connecting rod fixed to the backrest member. The outer contour of the backrest member is adapted to the storage portion. The storage portion of the backrest assembly is provided with a guide hole. The connecting rod can slide into the guide hole. The backrest member moves along the extension direction of the connecting rod to switch between a first posture and a second posture.

4. The vehicle seat according to claim 3, characterized by The vehicle seat also includes a side drive unit, which is tractively connected to the side headrest assembly and is used to drive the side headrest assembly to move relative to the backrest assembly to switch between a first posture and a second posture.

5. The vehicle seat according to any one of claims 1 to 4, characterized by The main headrest assembly includes a fixed pillow and a movable pillow. The fixed pillow is fixed above the backrest assembly, and the movable pillow is located on the side of the fixed pillow near the side headrest assembly. The movable pillow can move toward or away from the side headrest assembly to adjust the width of the recessed structure between the main headrest assembly and the side headrest assembly.

6. The vehicle seat according to any one of claims 1 to 4, characterized by The main headrest assembly is inclined toward one side of the side headrest assembly, and / or the side headrest assembly is inclined toward one side of the main headrest assembly, so that the distance between the two opposite sidewalls in the inner wall of the recessed structure gradually increases from bottom to top.

7. A vehicle characterized by comprising: Includes a vehicle body, wherein the vehicle body is provided with a vehicle seat as described in any one of claims 1 to 6.

8. A control method applied to the vehicle described in claim 7, characterized by, The method includes: Acquire control signals; The side headrest assembly is controlled to be in the first posture according to the control signal; The control signal is in response to an input command to begin a side-lying rest or to meet a first condition that the human body is in a side-lying rest posture.

9. The control method of claim 8, the main headrest assembly comprising a fixed pillow and a moving pillow, characterized by, After controlling the side headrest assembly to be in the first posture according to the control signal, the control method further includes: Control the movable pillow to move toward the side headrest assembly; The pressure value within the recessed structure is detected, and it is determined whether it exceeds a preset threshold. If the pressure value within the recessed structure is greater than a preset threshold, the size value of the recessed structure is recorded.

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