Automobile seat, folding control method, and vehicle

Abstract

The application relates to an automobile seat, a folding control method and a vehicle. The automobile seat comprises a mounting piece, a seat cushion assembly, a support piece and a driving device, the mounting piece is fixed to a vehicle body; the seat cushion assembly comprises a front end part and a rear end part, the rear end part is provided with a first rotary connecting part, the seat cushion assembly is rotatably connected to the mounting piece through the first rotary connecting part; the support piece is rotatably connected to the front end part of the seat cushion assembly through a second rotary connecting part, the support piece can be unfolded or folded relative to the seat cushion assembly, and when the support piece is unfolded, the seat cushion assembly is supported on the vehicle body; the driving device is in transmission connection with the first rotary connecting part and is used for driving the seat cushion assembly to overturn around the first rotary connecting part, so that the seat cushion assembly is unfolded or folded. The scheme provided by the application can realize the functions of folding and unfolding the seat cushion assembly of the automobile seat, the longitudinal dimension of the seat can be shortened after the seat cushion assembly is folded, and the space utilization rate of the passenger cabin can be improved.

Description

Technical Field

[0001] This application relates to the field of vehicle technology, and more particularly to automobile seats, folding control methods, and vehicles. Background Technology

[0002] Folding seats allow for flexible adjustments to the passenger compartment layout. They can be used normally when passengers are needed, and can be quickly folded away when cargo is required, thereby improving the utilization of vehicle space.

[0003] In related technologies, some folding seat structures are limited to the seat back folding down and the seat cushion sinking in tandem, so that the folded-down backrest is flush with the luggage compartment, achieving a smooth transition and expanding the luggage space. However, because the bottom structure of the seat cushion is fixed to the floor, this structure results in poor utilization of the passenger compartment space under the seat cushion; moreover, the seat cushion occupies a large amount of longitudinal space in the passenger compartment in the fore-and-aft direction.

[0004] Therefore, folding seats based on related technologies cannot effectively improve the utilization rate of passenger cabin space. Summary of the Invention

[0005] To solve or partially solve the problems existing in the related technologies, this application provides an automobile seat, a folding control method and a vehicle. The automobile seat can realize the function of folding and storing the seat cushion assembly. After the seat cushion assembly is stored, the depth dimension of the seat can be shortened, which can improve the utilization rate of passenger compartment space.

[0006] The first aspect of this application provides an automobile seat, comprising: Mounting components, fixed to the car body; A seat cushion assembly includes a front end and a rear end, wherein the rear end is provided with a first rotatable connection portion, and the seat cushion assembly is rotatably connected to the mounting member through the first rotatable connection portion; A support member is rotatably connected to the front end of the seat cushion assembly via a second rotating connection. The support member can be unfolded or folded relative to the seat cushion assembly. When the support member is unfolded, it is used to support the seat cushion assembly on the vehicle body. A driving device, which is connected to the first rotating connection, is used to drive the seat cushion assembly to rotate around the first rotating connection, so that the seat cushion assembly is folded or unfolded.

[0007] In some embodiments, a support linkage mechanism is also included, connected between the mounting member and the support member, for driving the support member to unfold or fold relative to the seat cushion assembly via the support linkage mechanism when the seat cushion is flipped.

[0008] In some embodiments, when the seat cushion assembly is flipped in the folding direction, the seat cushion assembly drives the support linkage mechanism to move in the first direction, so that the support linkage mechanism drives the support member to rotate around the second rotating connection portion to the inner side of the seat cushion assembly that overlaps with it. When the seat cushion assembly flips in the unfolding direction, the seat cushion assembly drives the support linkage mechanism to move in the second direction, so that the support linkage mechanism drives the support member to rotate around the second rotating connection part until the seat cushion assembly forms a set angle.

[0009] In some embodiments, the supporting linkage mechanism is a connecting rod, one end of which is connected to the mounting member via a third rotating connection, and the other end is connected to the supporting member via a fourth rotating connection.

[0010] In some embodiments, the mounting component, the seat cushion assembly, the support tube, and the support linkage mechanism together constitute a four-bar linkage; the first rotating connection, the second rotating connection, the third rotating connection, and the fourth rotating connection are the four pivot points of the four-bar linkage, and the four-bar linkage moves synchronously when the driving device drives the seat cushion to flip.

[0011] In some embodiments, the drive device includes a motor and an angle adjuster assembly, the motor being fixed relative to the mounting member, and the angle adjuster assembly being disposed at the first rotating connection portion; the output shaft of the motor is drively connected to the angle adjuster assembly, and the rotation center axis of the angle adjuster assembly is arranged coaxially with the rotation axis of the first rotating connection portion.

[0012] A second aspect of this application provides a method for controlling the folding of an automobile seat as described in the first aspect above, comprising: Receive user commands to fold or unfold the seat cushion components; A detection signal indicating whether the seat cushion assembly is occupied is obtained. If it is detected that it is not occupied, a control signal is sent to the drive device to drive the seat cushion assembly to rotate around the first rotating connection part, so that the seat cushion assembly performs a folding or unfolding action corresponding to the operation command. When the seat cushion assembly is controlled to rotate, the support member is driven to unfold or fold relative to the seat cushion assembly through the support linkage mechanism. When unfolded, the support member is used to support the seat cushion assembly on the vehicle body. After folding, the support member rotates to the inner side that overlaps with the seat cushion assembly.

[0013] In some embodiments, the step of obtaining a detection signal indicating whether the seat cushion assembly is occupied, and if it is detected that it is not occupied, sending a control signal to the driving device to drive the seat cushion assembly to rotate around the first rotating connection portion, so that the seat cushion assembly performs a folding or unfolding action corresponding to the operation command, includes: A detection signal indicating whether the seat cushion assembly is occupied is obtained. If it is detected that it is not occupied, a control signal is sent to the drive device to drive the four-bar linkage of the seat cushion assembly to move synchronously, so that the four pivot points of the four-bar linkage rotate in coordination to execute the folding or unfolding action corresponding to the operation command.

[0014] In some embodiments, after sending the control signal to the drive device to drive the four-bar linkage to move synchronously, the process includes: The pause trigger signal of the seat cushion assembly is monitored. When the pause trigger signal is detected, a control signal is sent to the drive device to adjust the motion trajectory of the four-bar linkage based on the current relative angle relationship of the four-bar linkage, so that the four pivot points of the four-bar linkage move to a stable state. Specifically, when the seat cushion assembly is in a folding motion and the flipping angle is less than a predetermined threshold, the four-bar linkage is controlled to continue operating, causing the seat cushion assembly to fold to the first target position and then pause; when it is in an unfolding motion, the four-bar linkage is controlled to unfold to the second target position and then stop.

[0015] In some embodiments, after sending the control signal to the drive device to drive the four-bar linkage to move synchronously, the process includes: The anti-pinch trigger signal of the seat cushion assembly is monitored. When the anti-pinch trigger signal is detected, a reverse drive command is sent to the drive device based on the relative angle relationship of the four-bar linkage, causing the four-bar linkage to move in the reverse direction along the original motion trajectory. When the four-bar linkage is in folding motion and the flip angle of the seat cushion assembly is less than a predetermined threshold, the four-bar linkage is controlled to unfold to the second target position and then stop. When it is in unfolding motion, the four-bar linkage is controlled to move in the reverse direction, causing the seat cushion assembly to fold to the first target position and then pause.

[0016] In some implementations, when the seat cushion assembly stops at a position less than a predetermined angle threshold, if it is detected that the seat cushion assembly is occupied, the seat cushion assembly is controlled to unfold to a second target position and then stop.

[0017] A third aspect of this application provides a vehicle including the car seat described in the first aspect above.

[0018] The technical solution provided in this application may include the following beneficial effects: The car seat provided in this application has a drive device that can drive a first rotating connection to rotate, thereby enabling the seat cushion assembly to flip around the first rotating connection and thus control the folding / unfolding of the seat cushion assembly. At the same time, the support member provides stable support for the seat cushion assembly when unfolded, and the support member is stowed away with the seat cushion assembly when folded. Compared with related technologies, this application realizes the function of folding and stacking the seat cushion assembly. After the seat cushion assembly is stowed away, the depth dimension of the seat can be shortened, which can improve the space utilization of the passenger compartment and thus meet the variable space and storage needs of the passenger compartment.

[0019] Furthermore, the automotive seat provided in this application comprises a four-bar linkage mechanism consisting of its mounting components, seat cushion assembly, support component, and support linkage mechanism. The four pivot points of the four-bar linkage mechanism are the first rotating connection, the second rotating connection, the third rotating connection, and the fourth rotating connection. Thus, the four-bar linkage mechanism enables the coordinated folding of the support component and the seat cushion assembly, improving the operational and structural stability during the unfolding and folding processes. In addition, utilizing the characteristics of the four-bar linkage mechanism, the power of the drive device can be efficiently transmitted to the seat cushion assembly and the support component, achieving synchronous movement of multiple components. This simplifies the mechanism layout, reduces the need for additional limiting devices, and lowers manufacturing costs.

[0020] It should be understood that the above general description and the following detailed description are exemplary and explanatory only, and do not limit this application. Attached Figure Description

[0021] The above and other objects, features and advantages of this application will become more apparent from the more detailed description of exemplary embodiments thereof in conjunction with the accompanying drawings, wherein the same reference numerals generally represent the same components in the exemplary embodiments thereof.

[0022] Figure 1 This is a schematic diagram of the structure of a car seat according to an embodiment of this application; Figure 2 This is a structural schematic diagram of a car seat from another perspective, as shown in one embodiment of this application; Figure 3 This is a schematic diagram of a car seat in an unfolded state, as shown in one embodiment of this application; Figure 4 This is a schematic diagram of a car seat in an intermediate state, as shown in one embodiment of this application; Figure 5 This is a schematic diagram of a car seat in a folded state, as shown in one embodiment of this application; Figure 6 This is a schematic flowchart illustrating a method for controlling the folding of a car seat according to an embodiment of this application; Figure 7This is a schematic diagram illustrating a car seat in an unfolded state according to an embodiment of this application; Figure 8 This is a schematic diagram illustrating a car seat in an intermediate state according to an embodiment of this application; Figure 9 This is a schematic diagram illustrating a car seat in a folded state according to an embodiment of this application; Figure 10 This is a flowchart illustrating a method for controlling the folding of a car seat according to another embodiment of this application.

[0023] Figure label: 100. Car seat; 110. Mounting component; 111. First pivot; 112. Second pivot; 113. Rod; 114. Bracket; 120. Drive unit; 121. Motor; 122. Adjuster assembly; 130. Seat cushion assembly; 131. First rotating connection; 132. Second rotating connection; 140. Support component; 150. Support linkage mechanism; 151. Third rotating connection; 152. Fourth rotating connection; 153. Third pivot. Detailed Implementation

[0024] Preferred embodiments of the present application will now be described in more detail with reference to the accompanying drawings. While preferred embodiments of the present application are shown in the drawings, it should be understood that the present application may be implemented in various forms and should not be limited to the embodiments set forth herein. Rather, these embodiments are provided to make the present application more thorough and complete, and to fully convey the scope of the present application to those skilled in the art.

[0025] The terminology used in this application is for the purpose of describing particular embodiments only and is not intended to be limiting of the application. The singular forms “a,” “the,” and “the” used in this application and the appended claims are also intended to include the plural forms unless the context clearly indicates otherwise. It should also be understood that the term “and / or” as used herein refers to and includes any or all possible combinations of one or more of the associated listed items.

[0026] It should be understood that although the terms "first," "second," "third," etc., may be used in this application to describe various information, this information should not be limited to these terms. These terms are only used to distinguish information of the same type from one another. For example, without departing from the scope of this application, first information may also be referred to as second information, and similarly, second information may also be referred to as first information. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of this application, "multiple" means two or more, unless otherwise explicitly specified.

[0027] In the description of this application, it should be understood that the terms "length", "width", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings, and are only for the convenience of describing this application and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this application.

[0028] Unless otherwise expressly specified and limited, the terms "installation," "connection," "linking," and "fixing," etc., should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral part; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; they can refer to the internal communication of two components or the interaction between two components. Those skilled in the art can understand the specific meaning of the above terms in this application according to the specific circumstances.

[0029] In related technologies, some folding seat structures are limited to the seat back folding down and the seat cushion sinking in tandem, allowing the backrest to fold flat with the trunk for a smooth transition and increased trunk capacity. However, this structure results in poor utilization of the passenger compartment space beneath the seat cushion because the bottom of the seat cushion is fixed to the floor; moreover, the seat cushion occupies a significant amount of longitudinal space in the passenger compartment, making it difficult to effectively improve the utilization rate of the passenger compartment space. To address these issues, this application provides a car seat that can effectively improve the space utilization rate of the passenger compartment.

[0030] The technical solutions of the embodiments of this application are described in detail below with reference to the accompanying drawings.

[0031] Figure 1 This is a schematic diagram of the structure of a car seat according to an embodiment of this application; Figure 2 This is a structural schematic diagram of a car seat from another perspective, as shown in one embodiment of this application.

[0032] See Figure 1 and Figure 2This application provides an automobile seat 100, which includes a mounting member 110, a seat cushion assembly 130, a support member 140, and a drive device 120. The mounting member 110 is fixed to the automobile body. The seat cushion assembly 130 includes a front end A and a rear end B. The rear end B is provided with a first rotatable connection portion 131. The seat cushion assembly 130 is rotatably connected to the mounting member 110 through the first rotatable connection portion 131. The support member 140 is rotatably connected to the front end of the seat cushion assembly 130 through a second rotatable connection portion 132. The support member 140 can be unfolded or folded relative to the seat cushion assembly 130. When the support member 140 is unfolded, it is used to support the seat cushion assembly 130 on the automobile body (e.g., the vehicle floor). The drive device 120 is drivenly connected to the first rotatable connection portion 131 and is used to drive the seat cushion assembly 130 to rotate around the first rotatable connection portion 131, so that the seat cushion assembly 130 is folded or unfolded.

[0033] The car seat provided in this application has a drive device that can drive the first rotating connection to rotate, realizing the flipping of the seat cushion assembly around the first rotating connection, thereby achieving folding / unfolding control of the seat cushion assembly. Simultaneously, the support member provides stable support for the seat cushion assembly when unfolded, and the support member is stowed away synchronously with the seat cushion assembly when folded. Compared with related technologies, this application achieves the functions of vertical folding and storage of the seat cushion assembly. After the seat cushion assembly is stowed, the depth dimension of the seat is shortened, improving the utilization rate of the passenger compartment space, thus meeting the diverse space and storage needs of the passenger compartment. In this embodiment, the mounting member 110 is fixed to the vehicle floor. The mounting member 110 includes a rod 113 and brackets 114 fixed to both ends of the rod 113. The brackets 114 are used to connect the seat cushion assembly 130. The rod and the ISOFIX bracket form a rigid connection. The ISOFIX bracket is equipped with child seat interface buckles that conform to relevant standards. The rigid connection between the mounting member 110 and the vehicle body, combined with the precise control of the flipping angle by the drive device 120, ensures the stability and riding comfort of the seat cushion assembly 130 in its unfolded state.

[0034] In this embodiment, the first rotating connection 131 includes a rotating shaft 111 with a bearing. The seat cushion assembly 130 is hinged to the bracket 114 of the mounting member 110 through the rotating shaft 111, so that the seat cushion assembly 130 can be rotated around the axis of the rotating shaft 111.

[0035] In this application, the seat cushion assembly 130 can be a seat cushion frame, the periphery of which can be covered with a flexible material to form a seat cushion for a user to sit on. Specifically, the seat cushion frame can be formed by bending a metal tube, and the middle of the seat cushion frame has a plate-like or mesh-like support member that is rigidly connected to the seat cushion frame. In some embodiments, the support member 140 can be a U-shaped metal tube, a rectangular structural member, or other shaped profile member, but is not limited to these; it can also be other shapes that can support the seat cushion assembly 130 in an unfolded state.

[0036] The support member 140 is hinged to the front end A of the seat cushion assembly 130 near its two lateral ends via a second rotatable connection 132. When the support member 140 is unfolded, its bottom portion away from the seat cushion assembly 130 abuts against the vehicle floor, thereby supporting the front end A of the seat cushion assembly 130 at a set height. When folded, the support member 140 is hidden on the bottom side of the seat cushion assembly 130 opposite to its upper surface, thus reducing the overall volume of the seat cushion. In some embodiments, a connecting ear is provided on the lower side of the front end A of the seat cushion assembly 130, and the connecting ear is rotatably connected to the support member 140.

[0037] See also Figure 1 In some embodiments, the drive device 120 includes a motor 121 and an adjuster assembly 122. The motor 121 is fixed to one side of the mounting member 110 by a mounting plate. The adjuster assembly 122 is integrated into the first rotating connection part 131 and has a worm gear transmission mechanism inside. The output shaft of the motor 121 is connected to the input shaft of the adjuster assembly 122 through a coupling, gear assembly or worm gear transmission structure, and the rotation center axis of the adjuster assembly 122 is coaxial with the first rotating shaft 111 of the first rotating connection part 131, thereby realizing the flipping drive of the seat cushion assembly 130 around the first rotating shaft 111.

[0038] In this embodiment, the angle adjuster assembly 122 is integrated into the first rotating connection part 131, avoiding the external space occupation of the drive device 120 and improving the structural compactness. The transmission structure between the motor 121 and the angle adjuster assembly 122 has a self-locking characteristic, thereby keeping the seat cushion assembly in an unfolded or folded state.

[0039] See also Figure 1 and Figure 2 In some embodiments, the car seat 100 further includes a support linkage mechanism 150 connected between the mounting member 110 and the support member 140, which is used to drive the support member 140 to unfold or fold relative to the seat cushion assembly 130 when the seat cushion assembly 130 is flipped.

[0040] The support linkage mechanism 150 mechanically connects the mounting part 110 and the support part 140, so that when the seat cushion assembly 130 is flipped, the support part 140 is automatically triggered to unfold or fold, avoiding step-by-step operation. Through the mechanical linkage, the action delay between the drive device 120 and the support part 140 can be eliminated or reduced, thereby improving the system response efficiency.

[0041] Furthermore, by supporting the linkage mechanism 150 with differentiated movement paths in the folding and unfolding directions, it is ensured that the support member 140 and the seat cushion assembly 130 are partially or completely hidden after folding and accurately positioned after unfolding. When unfolded, the support member 140 forms a preset angle (e.g., 110°) with the seat cushion assembly 130, which enhances the support strength for the front end of the seat cushion assembly 130 and prevents the seat cushion assembly 130 from collapsing or causing structural failure during use.

[0042] In this embodiment, the support linkage mechanism 150 can be a rigid connecting rod, one end of which is rotatably connected to the second rotating shaft 112 fixed to the mounting member 110 via the third rotating connecting part 151, and the other end of which is rotatably connected to the third rotating shaft 153 fixed to the support member 140 via the fourth rotating connecting part 152. Specifically, the rotation axes of the second rotating shaft 112 and the second rotating connecting part 132 are parallel, and there is a set distance between them.

[0043] This application uses a rigid connecting rod as the support linkage mechanism 150, which can reduce complex transmission components and thus reduce the failure rate. Through the rotational connection design of the third rotational connection part 151 and the fourth rotational connection part 152, the rigid connecting rod is constrained to move only along the set trajectory, avoiding the support member 140 from deviating or getting stuck, thereby improving the folding smoothness of the seat cushion assembly 130.

[0044] In this application, the mounting component 110, seat cushion assembly 130, support component 140, and support linkage mechanism 150 together constitute a four-bar linkage. The four pivot points of the four-bar linkage are the first rotating connection 131, the second rotating connection 132, the third rotating connection 151, and the fourth rotating connection 152. The four-bar linkage enables the linkage folding of the support component 140 and the seat cushion assembly 130, improving structural stability. In addition, by utilizing the characteristics of the four-bar linkage, the power of the drive device 120 is efficiently transmitted to the seat cushion assembly 130 and the support component 140, realizing synchronous movement of multiple components. The co-motion design of the four pivot points simplifies the mechanism layout, reduces the need for additional limiting devices, and lowers manufacturing costs.

[0045] See Figures 3-5 When motor 121 drives seat cushion assembly 130 in the folding direction (e.g.) Figure 4 When the seat cushion assembly 130 is flipped (in the direction of arrow R1), the connecting rod of the support linkage mechanism 150 swings in the first direction, forcing the support member 140 to rotate inward around the second rotating connection 132 until the support member 140 is folded and stored at the bottom of the seat cushion assembly 130. Conversely, when the seat cushion assembly 130 is flipped in the unfolding direction (as shown by arrow R1), the support member 140 rotates inward around the second rotating connection 132 until the support member 140 is folded and stored at the bottom of the seat cushion assembly 130. Figure 4 When the arrow (in the direction of R2) is flipped, the connecting rod of the support linkage mechanism 150 moves in the second direction, pushing the support member 140 to unfold outward, so that it forms an angle of about 110° with the seat cushion assembly 130.

[0046] That is, when the seat cushion assembly 130 is flipped in the folding direction, the seat cushion assembly 130 drives the support linkage mechanism 150 to move in the first direction, so that the support linkage mechanism 150 drives the support member 140 to rotate around the second rotating connection portion 132 to the inner part overlapping with the seat cushion assembly 130; when the seat cushion assembly 130 is flipped in the unfolding direction, the seat cushion assembly 130 drives the support linkage mechanism 150 to move in the second direction, so that the support linkage mechanism 150 drives the support member 140 to rotate around the second rotating connection portion 132 until it forms a set angle with the seat cushion assembly 130 and then stops.

[0047] In this application, during the unfolding process of the seat cushion assembly 130, the motor 121 rotates forward, driving the seat cushion assembly 130 to fold down around the first rotating connection part 131 through the angle adjuster assembly 122. At the same time, the four-bar linkage causes the support member 140 to automatically unfold and lock. During the folding process of the seat cushion assembly 130, the motor 121 rotates in reverse, and the seat cushion assembly 130 folds up to a position close to vertical or in contact with the backrest. The support member 140 folds down and attaches to the side of the seat cushion assembly 130 away from the backrest.

[0048] In some embodiments, the angle adjuster assembly 122 has an integrated angle sensor that is communicatively connected to the vehicle ECU control system to monitor the angle of the four-bar linkage in different states in real time and feed it back to the vehicle display screen.

[0049] In some embodiments, the drive device 120 of the car seat can also be an electric push-pull rod mechanism. The electric push-pull rod mechanism is located at the front end of the seat cushion assembly 130. The end of the push-pull rod of the electric push-pull rod mechanism is connected to the front end of the seat cushion assembly 130. The folding and unfolding of the seat cushion assembly 130 can be realized by the extension and retraction of the push-pull rod.

[0050] See Figures 7-9 In some embodiments, the car seat of this application also includes a backrest 200, which is fixed to the vehicle body. When the seat cushion assembly 130 is driven by the drive device 120, it can be folded or unfolded relative to the backrest 200. When the backrest 200 is fixed, the seat cushion assembly 130 forms a variable angle with the backrest 200 when it is folded. Therefore, the automatic folding control of the seat cushion assembly can be realized, which can improve the space utilization and flexible layout of the vehicle passenger compartment.

[0051] This application also provides a vehicle that includes a car seat as described in the above embodiment. The seat cushion assembly of the car seat is driven by a drive device to flip and fold upward around the first rotating connection to a vertical storage state, which can create a flat cargo space at the bottom of the seat. In addition, the folding of the seat cushion assembly can reduce the longitudinal space occupation, making the space layout more flexible and the passenger compartment space utilization rate higher.

[0052] Accordingly, this application also provides a method for controlling the folding of the above-mentioned car seat.

[0053] Figure 6 This is a schematic flowchart illustrating a method for controlling the folding of a car seat according to an embodiment of this application.

[0054] Please see also Figure 1 , Figure 2 and Figure 6 The method includes the following steps: S110, receives the user's operation command to fold or unfold the seat cushion assembly 130, and obtains the detection signal of whether the seat cushion assembly 130 is occupied.

[0055] In this step, the operation commands include "fold" and "unfold" commands, which the control device (such as the body controller) can receive. Specifically, the "fold" and "unfold" commands can be triggered via the in-vehicle touchscreen, physical button, or voice recognition. See [link to relevant documentation]. Figure 7 In some embodiments, when triggered by a physical button, the side of the car seat 100 is provided with "fold" and "unfold" buttons, which allow the user to conveniently trigger the "fold" or "unfold" command.

[0056] S120, if it is detected that the seat cushion assembly 130 is not occupied, a control signal is sent to the drive device 120 to drive the seat cushion assembly 130 to rotate around the first rotating connection portion 131, so that the seat cushion assembly 130 performs a folding or unfolding action corresponding to the operation command; wherein, when the seat cushion assembly 130 is controlled to rotate, the support member 140 is driven to unfold or fold relative to the seat cushion assembly 130 through the support linkage mechanism 150. When unfolded, the support member 140 is used to support the seat cushion assembly 130 on the vehicle body. After folding, the support member 140 rotates to the inner side that overlaps with the seat cushion assembly 130.

[0057] In this step, the control device detects whether the seat cushion assembly 130 is occupied by a pressure sensor array installed on the surface of the seat cushion assembly 130. If the pressure value is lower than the set threshold (e.g., ≤5kg), it is determined that it is not occupied; if it is occupied, it refuses to respond.

[0058] When the seat cushion assembly 130 is not occupied, the control device sends a control signal to the drive device 120 (e.g., motor 121). After receiving the control signal, the drive device 120 starts and can transmit torque to the adjuster assembly 122 through the worm gear mechanism. The output shaft of the adjuster assembly 122 drives the first rotating connection part 131 to rotate around its axis, so that the seat cushion assembly 130 flips at a specific angular velocity (e.g., about 4° / s).

[0059] Specifically, see Figure 1 , Figure 8 and Figure 9During the folding action, the control device controls the motor 121 to reverse, and the seat cushion assembly 130 flips upward to a storage position that is basically parallel or nearly parallel to the seat back 200; during the unfolding action, the control device controls the motor 121 to rotate forward, and the seat cushion assembly 130 flips downward relative to the backrest 200 to the unfolded state.

[0060] Compared with related technologies, the solution of this application realizes the function of folding and storing the seat cushion assembly 130 vertically. After the seat cushion assembly 130 is stored, the depth dimension of the entire car seat is shortened, freeing up some space in the bottom area of ​​the seat cushion assembly 130 in the passenger compartment, thereby improving the space utilization of the passenger compartment. At the same time, this application detects whether the seat cushion assembly 130 is occupied and only performs the flipping action in a safe state, avoiding mechanical damage or personal injury caused by user misoperation. The user command directly triggers the drive device 120, realizing a rapid response of folding / unfolding of the seat cushion assembly 130, which can improve the convenience of operation.

[0061] In some embodiments, if it is detected that the seat cushion assembly 130 is not occupied, a control signal is sent to the drive device 120 to drive the seat cushion assembly 130 to rotate around the first rotating connection portion 131, so that the seat cushion assembly 130 performs a folding or unfolding action corresponding to the operation command. This includes: if it is detected that the seat cushion assembly 130 is not occupied, a control signal is sent to the drive device 120 to drive the four-bar linkage of the seat cushion assembly 130 to move synchronously, so that the four pivot points of the four-bar linkage rotate in coordination to perform a folding or unfolding action corresponding to the operation command.

[0062] In this embodiment, during the flipping process of the seat cushion assembly 130, the four-bar linkage generates coordinated motion. The mounting member 110 and the seat cushion assembly 130 rotate relative to each other through the first rotating connection part 131. One end of the connecting rod of the support linkage mechanism 150 is connected to the mounting member 110 through the third rotating connection part 151, and the other end pushes the support member 140 to rotate around the second rotating connection part 132 through the fourth rotating connection part 152. The four pivot points form a planar four-bar linkage, and the included angle of each link 113 is changed synchronously under the drive of the motor 121.

[0063] In some embodiments, when the seat cushion assembly 130 unfolds to a set angle (e.g., 75°-90°) with the horizontal direction X, the support member 140 moves with the four-bar linkage to be completely folded to the bottom surface of the seat cushion assembly 130. Specifically, at this time, the Hall sensor detects the support member 140 in position, the motor 121 stops running and enters a self-locking state.

[0064] In some embodiments, after sending a control signal to the drive device 120 to drive the four-bar linkage to move synchronously, the process includes: monitoring a pause trigger signal of the seat cushion assembly 130; when a pause trigger signal is detected, sending a control signal to the drive device 120 to adjust the movement trajectory of the four-bar linkage based on the current relative angle relationship of the four-bar linkage, so that the four pivot points of the four-bar linkage move to a stable state; wherein, when the seat cushion assembly 130 is in a folding motion and the flip angle is less than a predetermined threshold, the four-bar linkage is controlled to continue running, so that the seat cushion assembly 130 is folded to a first target position and then paused; when in an unfolding motion, the four-bar linkage is controlled to unfold to a second target position and then stop.

[0065] In this step, the user can trigger a pause signal via the vehicle's touchscreen, the physical "pause" button on the car seat, or a voice command. The control device monitors this signal in real time. When a pause signal is detected, the controller reads the current rotation angle of the seat cushion assembly 130 (which can be fed back by the encoder of the motor 121, for example, angle θ) and determines whether it is less than a predetermined angle threshold. The real-time angle of the four-bar linkage can be obtained by rotary encoders installed at each pivot point of the four-bar linkage. If the rotation angle of the seat cushion 100 is less than the predetermined angle threshold, the motor 121 is controlled to continue running until the seat cushion assembly 130 is fully folded to the first target position. During the unfolding process, the four-bar linkage is controlled to move to a stable geometric configuration state (i.e., the second target position). In this way, by controlling the seat cushion assembly 130 to rotate to a position exceeding the predetermined angle threshold, the target position (fully unfolded or folded beyond the threshold) is selected according to the current rotation direction, avoiding the seat cushion assembly 130 being in an unstable intermediate state due to pause; and by exceeding the threshold angle during the pause in the folding process, the risk of rebound caused by the weight of the seat cushion assembly 130 is eliminated.

[0066] In some embodiments, after sending a control signal to the drive device 120 to drive the four-bar linkage to move synchronously, the process includes: monitoring the anti-pinch trigger signal of the seat cushion assembly 130; when the anti-pinch trigger signal is detected, sending a reverse drive command to the drive device 120 based on the relative angle relationship of the four-bar linkage, causing the four-bar linkage to move in the reverse direction along the original motion trajectory; wherein when the four-bar linkage is in folding motion and the flip angle of the seat cushion assembly 130 is less than a predetermined threshold, the four-bar linkage is controlled to unfold to the second target position and then stop; when in unfolding motion, the four-bar linkage is controlled to move in the reverse direction, causing the seat cushion assembly 130 to fold to the first target position and then pause.

[0067] Triggering a reverse movement by an anti-pinch signal can immediately eliminate the risk of being pinched by an obstacle. Select the target position in the opposite direction according to the current direction of movement (such as reversing the unfolding while folding, or reversing the folding while unfolding) to achieve dual-path safety protection. After the anti-pinch action is completed, it automatically resets to a safe position (fully unfolded or folded).

[0068] In some embodiments, when the seat cushion assembly 130 stops at a position less than a predetermined angle threshold, if occupancy is detected, the seat cushion assembly 130 is controlled to unfold to a second target position and then stop. In this embodiment, if the seat cushion assembly 130 stops at an intermediate position due to a pause or malfunction, and the pressure sensor detects occupancy (e.g., a user mistakenly sits on it), the motor 121 is forcibly controlled to drive the seat cushion assembly 130 to unfold to the second target position, and the support member 140 is locked. This avoids structural deformation caused by user misuse. During the occupancy recovery process, the anti-pinch signal takes priority over occupancy detection, ensuring that the safety mechanism is higher than functional requirements. By correlating abnormal positions with occupancy status, the system's adaptability to emergencies is enhanced.

[0069] Please see also Figure 1 and 10 In some specific embodiments, the solution of this application includes the following detailed steps: S210 receives operation commands from the user to fold or unfold the seat cushion assembly 130.

[0070] In this step, when the user operates the vehicle's touchscreen, physical buttons, or inputs a "fold" or "unfold" command via voice, the controller receives the command.

[0071] S220, determine whether the seat cushion assembly 130 is occupied; if occupied, refuse to respond; if occupied, proceed to step S230.

[0072] In this step, the pressure detection signal of the seat cushion assembly 130 is obtained to determine whether the seat cushion assembly 130 is occupied.

[0073] S230, a control signal is sent to the drive device 120 to drive the seat cushion assembly 130 to rotate around the first rotating connection portion 131, so that the seat cushion assembly 130 performs a folding or unfolding action corresponding to the operation command.

[0074] When the seat cushion assembly 130 is folded down, the seat cushion 100 can be stored away. When unfolded, it can be used by users to improve the utilization of passenger cabin space.

[0075] S240, determine whether an abnormal trigger signal of the seat cushion assembly 130 is detected. If not detected, proceed to S241; if detected, proceed to S250.

[0076] In this step, the abnormal trigger signal includes a pause trigger signal or an anti-pinch trigger signal. The pause trigger signal or the anti-pinch trigger signal can be input by the user on the vehicle's central control screen or detected by sensors.

[0077] S241, control the seat cushion assembly 130 to move to the first target position or the second target position and then stop.

[0078] In this step, the first target position is the final position after folding, and the second target position is the initial position after unfolding. At the first and second target positions, the seat cushion assembly 130 is stationary relative to the backrest 200, forming a specific angle between them.

[0079] S250, determine whether the abnormal trigger signal is a pause trigger signal. If yes, proceed to step S260; otherwise, proceed to S261.

[0080] S260, determine whether the current angle of the seat cushion assembly 130 is less than a predetermined threshold. If yes, proceed to step S270; otherwise, proceed to step S271.

[0081] S261, determine whether the current angle of the seat cushion assembly 130 is less than a predetermined threshold. If yes, proceed to step S262; otherwise, proceed to step S263.

[0082] S262, if it is folded, control the four-bar linkage to run in reverse, so that the seat cushion assembly 130 is unfolded to the second target position and then stops; if it is unfolded, control the four-bar linkage to run in reverse, so that the seat cushion assembly 130 is folded to the first target position and then stops.

[0083] S262, control the four-bar linkage to run in reverse. In this step, if the angle of the seat cushion assembly 130 is greater than a predetermined threshold, control the seat cushion assembly 130 to pause and reverse the set angle, for example, reverse to the target position and then pause.

[0084] S270, if it is folded, control the four-bar linkage to continue operating, so that the seat cushion assembly 130 is folded to the first target position and then stops; if it is unfolded, control the four-bar linkage to unfold to the second target position and then stop.

[0085] S270, control the four-bar linkage to pause. In this step, the angle of the seat cushion assembly 130 is greater than a predetermined threshold, and the control the seat cushion assembly 130 to pause.

[0086] The solution provided in this application can obtain trigger signals for folding or unfolding the seat cushion 100 through physical buttons, a touch screen, or voice recognition, making the adjustment of the seat cushion assembly 130 more convenient. Simultaneously, it controls the operation of the seat cushion assembly 130 based on abnormal trigger signals and the movement trend of the seat cushion assembly 130, improving safety through differentiated control of movement direction and target position for pause and anti-pinch scenarios. Furthermore, it can prevent the seat cushion assembly 130 from malfunctioning due to being sat on before it is fully unfolded, thus improving the reliability and safety of the seat cushion assembly 130.

[0087] The various embodiments of this application have been described above. These descriptions are exemplary and not exhaustive, nor are they limited to the disclosed embodiments. Many modifications and variations will be apparent to those skilled in the art without departing from the scope and spirit of the described embodiments. The terminology used herein is chosen to best explain the principles, practical application, or improvement of the technology in the market, or to enable others skilled in the art to understand the embodiments disclosed herein.

Claims

1. A car seat, characterized in that, include: Mounting components, fixed to the car body; A seat cushion assembly includes a front end and a rear end, wherein the rear end is provided with a first rotatable connection portion, and the seat cushion assembly is rotatably connected to the mounting member through the first rotatable connection portion; A support member is rotatably connected to the front end of the seat cushion assembly via a second rotating connection. The support member can be unfolded or folded relative to the seat cushion assembly. When the support member is unfolded, it is used to support the seat cushion assembly on the vehicle body. A driving device, which is connected to the first rotating connection, is used to drive the seat cushion assembly to rotate around the first rotating connection, so that the seat cushion assembly is folded or unfolded.

2. The car seat according to claim 1, characterized in that, Also includes: A support linkage mechanism is connected between the mounting component and the support component. When the seat cushion is flipped, the support linkage mechanism is used to drive the support component to unfold or fold relative to the seat cushion assembly.

3. The car seat according to claim 2, characterized in that: When the seat cushion assembly is flipped in the folding direction, the seat cushion assembly drives the support linkage mechanism to move in the first direction, so that the support linkage mechanism drives the support member to rotate around the second rotating connection part to the inner side of the seat cushion assembly that overlaps. When the seat cushion assembly flips in the unfolding direction, the seat cushion assembly drives the support linkage mechanism to move in the second direction, so that the support linkage mechanism drives the support member to rotate around the second rotating connection part until the seat cushion assembly forms a set angle.

4. The car seat according to claim 2, characterized in that: The supporting linkage mechanism is a connecting rod, one end of which is connected to the mounting component via a third rotating connection part, and the other end is connected to the supporting component via a fourth rotating connection part.

5. The car seat according to claim 2, characterized in that: The mounting component, the seat cushion assembly, the support tube, and the support linkage mechanism together constitute a four-bar linkage; the first rotating connection, the second rotating connection, the third rotating connection, and the fourth rotating connection are the four pivot points of the four-bar linkage, and the four-bar linkage moves synchronously when the driving device drives the seat cushion to flip.

6. The car seat according to claim 1, characterized in that: The driving device includes a motor and an angle adjuster assembly. The motor is fixed relative to the mounting member, and the angle adjuster assembly is located at the first rotating connection. The output shaft of the motor is connected to the angle adjuster assembly in a transmission manner, and the rotation center axis of the angle adjuster assembly is arranged coaxially with the rotation axis of the first rotating connection.

7. A method for controlling the folding of a car seat as described in any one of claims 1-6, characterized in that, include: Receive user commands to fold or unfold the seat cushion components; A detection signal indicating whether the seat cushion assembly is occupied is obtained. If it is detected that it is not occupied, a control signal is sent to the drive device to drive the seat cushion assembly to rotate around the first rotating connection part, so that the seat cushion assembly performs a folding or unfolding action corresponding to the operation command. When the seat cushion assembly is controlled to rotate, the support member is driven to unfold or fold relative to the seat cushion assembly through the support linkage mechanism. When unfolded, the support member is used to support the seat cushion assembly on the vehicle body. After folding, the support member rotates to the inner side that overlaps with the seat cushion assembly.

8. The method according to claim 7, characterized in that, The step of obtaining a detection signal indicating whether the seat cushion assembly is occupied, and if it is detected that it is not occupied, sending a control signal to the driving device to drive the seat cushion assembly to rotate around the first rotating connection portion, so that the seat cushion assembly performs a folding or unfolding action corresponding to the operation command, includes: A detection signal indicating whether the seat cushion assembly is occupied is obtained. If it is detected that it is not occupied, a control signal is sent to the drive device to drive the four-bar linkage of the seat cushion assembly to move synchronously, so that the four pivot points of the four-bar linkage rotate in coordination to execute the folding or unfolding action corresponding to the operation command.

9. The method according to claim 8, characterized in that, After sending the control signal to the drive device to drive the four-bar linkage to move synchronously, the process includes: The pause trigger signal of the seat cushion assembly is monitored. When the pause trigger signal is detected, a control signal is sent to the drive device to adjust the motion trajectory of the four-bar linkage based on the current relative angle relationship of the four-bar linkage, so that the four pivot points of the four-bar linkage move to a stable state. Specifically, when the seat cushion assembly is in a folding motion and the flipping angle is less than a predetermined threshold, the four-bar linkage is controlled to continue operating, causing the seat cushion assembly to fold to the first target position and then pause; when it is in an unfolding motion, the four-bar linkage is controlled to unfold to the second target position and then stop.

10. The method according to claim 8, characterized in that, After sending the control signal to the drive device to drive the four-bar linkage to move synchronously, the process includes: The anti-pinch trigger signal of the seat cushion assembly is monitored. When the anti-pinch trigger signal is detected, a reverse drive command is sent to the drive device based on the relative angle relationship of the four-bar linkage, causing the four-bar linkage to move in the reverse direction along the original motion trajectory. When the four-bar linkage is in folding motion and the flip angle of the seat cushion assembly is less than a predetermined threshold, the four-bar linkage is controlled to unfold to the second target position and then stop. When it is in unfolding motion, the four-bar linkage is controlled to move in the reverse direction, causing the seat cushion assembly to fold to the first target position and then pause.

11. The method according to any one of claims 7-10, characterized in that, When the seat cushion assembly stops at a position less than a predetermined angle threshold, if it is detected that the seat cushion assembly is occupied, the seat cushion assembly is controlled to unfold to a second target position and then stop.

12. A vehicle, characterized in that, Including the car seat as described in any one of claims 1-6.

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