Strut structure, vehicle, and control method for vehicle

Abstract

The application provides a support rod structure, a vehicle and a control method of the vehicle, relates to the technical field of vehicles, and aims to at least solve the problem of how to improve the precision of the opening degree control of the back door of the vehicle. The support rod structure is used for supporting the back door of the vehicle, and the support rod structure comprises a first support piece, a second support piece and a counter assembly. The first support piece and the second support piece can move relatively along a first direction to push the back door to open or close. One of the first support piece and the second support piece is provided with a plurality of protrusions which are arranged at intervals along the first direction, and the counter assembly is arranged on the other one of the first support piece and the second support piece and is used for detecting the number of the protrusions passing through the counter assembly during the relative movement of the first support piece and the second support piece.

Description

Technical Field

[0001] This application relates to the field of vehicle technology, specifically to strut structures and vehicles. Background Technology

[0002] The vehicle may include a body, a tailgate, and a strut structure. The strut structure connects the body and the tailgate and is used to open or close the tailgate. A motor is installed within the strut structure to drive its movement, which in turn moves the tailgate.

[0003] In the prior art, in order to detect and control the opening degree of the tailgate, a Hall sensor is usually installed in the motor to detect the number of rotations of the motor spindle and calculate the opening position of the tailgate.

[0004] However, in existing technologies, due to the inherent motion tolerances of the motor and the mechanical clearances in the transmission structure between the motor and the support structure, a cumulative error occurs between the number of rotations of the motor spindle and the actual displacement of the support structure. This error results in low control accuracy of the tailgate opening, making it difficult to meet users' precise stopping requirements for the predetermined opening degree and affecting the user experience. Summary of the Invention

[0005] The purpose of this application is to provide a strut structure to at least solve the problem of how to improve the accuracy of the tailgate opening control of a vehicle.

[0006] To achieve the above objectives, the technical solution adopted by the present invention is as follows: In a first aspect, this application provides a strut structure for supporting the tailgate of a vehicle. The strut structure includes a first support member, a second support member, and a counter assembly. The first support member and the second support member are movable relative to each other in a first direction to push the tailgate open or close.

[0007] One of the first support member and the second support member is provided with a plurality of protrusions spaced apart along a first direction, and a counter assembly is provided on the other of the first support member and the second support member for detecting the number of protrusions passing through the counter assembly during the relative movement of the first support member and the second support member.

[0008] Through the above technical solution, the strut structure provided in this application, by providing a plurality of protrusions spaced apart along a first direction on one of the first and second support members, and a counter assembly disposed on the other of the first and second support members, allows the counter assembly to detect the number of protrusions passing through it in real time when the first and second support members move relative to each other along the first direction. Since the plurality of protrusions are spaced apart along the first direction, the relative displacement of one of the first and second support members relative to the other can be accurately calculated based on the number detected by the counter assembly, thereby allowing for the accurate calculation of the actual opening degree of the tailgate.

[0009] Specifically, the calculation process for the actual opening degree of the tailgate is as follows: Number of protrusions detected by the counter component / Total number of protrusions * Maximum opening degree of the tailgate. For example, assuming the counter component detects 80 protrusions, the total number of protrusions is 100, and the maximum opening degree of the tailgate is 90°, then the actual opening degree of the tailgate is: 80 / 100 * 90° = 72°.

[0010] Compared with the existing technology that indirectly calculates the position of the tailgate by detecting the number of rotations of the motor spindle, this solution uses a counter component to directly measure the actual position of the tailgate. This can fundamentally avoid the cumulative errors caused by factors such as motor tolerances and mechanical clearances of the transmission mechanism, significantly improving the accuracy and reliability of tailgate opening detection. Thus, precise control of the tailgate opening can be achieved based on accurate position information, meeting users' precise parking requirements for the predetermined opening and improving the user experience.

[0011] In some embodiments, a groove is formed between any two adjacent protrusions. The counter assembly includes a fixing member, a counter body, and a moving member. The fixing member is disposed on the other of the first support member and the second support member. The counter body is connected to the fixing member. The moving member is movably connected to the fixing member along a second direction, which is perpendicular to the first direction.

[0012] During the relative movement of the first support member and the second support member, the moving member contacts the protrusion and the groove in sequence. When the moving member contacts the protrusion, the moving member contacts the counter body to complete one count. When the moving member contacts the groove, the moving member separates from the counter.

[0013] Through the above technical solution, during the relative movement of the first and second support members, the moving member can slide sequentially over the protrusion and the groove. Each time the moving member contacts the protrusion, it contacts the counter body to complete one count, and the counter body accumulates the detected count. Based on the count accumulated by the counter body, the relative displacement of one of the first and second support members relative to the other can be accurately calculated, thereby accurately calculating the actual opening degree of the tailgate. This calculation method has a simple structure and is easy to implement, achieving high-precision position detection without the need for complex sensors.

[0014] In some embodiments, the movable member includes a movable rod and a ball head connected to the movable rod. The movable rod is movably connected to the fixed member in a second direction. During the relative movement of the first support member and the second support member, the ball head moves sequentially in the protrusion and the groove to drive the movable rod to move in the second direction.

[0015] When the ball head is in the protrusion, the moving rod contacts the counter body to complete one count; when the ball head is in the groove, the moving rod separates from the counter.

[0016] Through the above technical solution, during the relative movement of the first and second support members, the moving component, composed of a moving rod and a ball head, slides along the first direction. The ball head slides sequentially over the protrusion and the groove. Each time the ball head slides over the protrusion, the moving rod contacts the protrusion and triggers the counter body to complete one count. The counter body accumulates the detected quantity. Based on the quantity accumulated by the counter body, the relative displacement of one of the first and second support members relative to the other can be accurately calculated, thereby accurately calculating the actual opening degree of the rear door. This moving component structure, composed of a moving rod and a ball head, is simple and easy to implement. Furthermore, since the ball head makes point contact with the protrusion and groove, it effectively reduces sliding friction and wear when sliding sequentially over the protrusion and groove, improving the smoothness of the detection process.

[0017] In some embodiments, the strut structure further includes a first elastic element disposed between the ball head and the fixing element, wherein the first elastic element undergoes elastic deformation when the ball head is in the protrusion position.

[0018] Through the above technical solution, by placing the first elastic element between the ball head and the fixed element, when the ball head is located on the protrusion, the first elastic element undergoes elastic deformation due to compression or stretching by the fixed element, causing the moving rod connected to the ball head to contact the counter body and trigger the counter body to complete one count. When the ball head slides past the protrusion and enters the groove, the compressed first elastic element returns to its original position and applies a force away from the counter body to the ball head, causing the ball head to be located in the groove, thereby separating the moving rod from the counter and preparing for the next count.

[0019] Thus, by setting up the first elastic element, after the ball head passes the protrusion, the elastic element can drive the ball head to quickly return to the groove, ensuring the continuity of the ball head's sliding between the protrusion and the groove. This not only avoids the problem of missed counts caused by the ball head getting stuck or not returning in time, but also ensures that each protrusion can be accurately detected, thereby significantly improving the reliability of the counter body's counting and the continuity of the detection process.

[0020] In some embodiments, the strut structure further includes a locking structure that cooperates with the movable member to lock the movable member when the ball head is located in the groove, thereby locking the first support member and the second support member.

[0021] Through the above technical solution, by cooperating the locking structure with the moving part, when the ball head is located in the groove, the locking structure can lock the first support and the second support to ensure the stability of the first support and the second support in the static state. Furthermore, it can ensure the position holding ability of the tailgate in the open and closed states and improve the stability of the tailgate when it is opened or closed.

[0022] In some embodiments, the strut structure further includes a second elastic element disposed between the first support and the second support, and the second elastic element undergoes elastic deformation when the length of the strut structure along the first direction increases.

[0023] The above technical solution involves placing a second elastic element between the first and second support members. When the tailgate is closed, the second elastic element undergoes elastic deformation. When the tailgate needs to be opened, the second elastic element releases its elastic force to push the tailgate, which is connected to the strut structure, towards the opening direction. This facilitates opening the tailgate and makes it easier to open.

[0024] Simultaneously, the ball head slides sequentially over the protrusion and the groove. Whenever the ball head is on the protrusion, the moving rod connected to the ball head contacts the counter body, triggering the counter body to complete one count. Based on the count detected by the counter body, the relative displacement of one of the first and second support members relative to the other can be accurately calculated, thereby accurately calculating the actual opening degree of the tailgate.

[0025] In some embodiments, the first support member has a receiving cavity and an opening communicating with the receiving cavity, the second support member passes through the opening, and a portion of the second support member is located within the receiving cavity, and the second elastic member is disposed within the receiving cavity and surrounds the second support member.

[0026] Through the above technical solution, by having a receiving cavity and an opening communicating with the receiving cavity in the first support member, and the second support member passing through the opening with a portion of the second support member located within the receiving cavity, and the second elastic member disposed within the receiving cavity and surrounding the second support member, the strut structure can be made more compact, thereby reducing the space occupied by the strut structure on the vehicle. Furthermore, the elastic force applied by the elastic member to the second support member is more uniform, improving the smoothness of the relative movement between the first and second support members.

[0027] In some embodiments, the second support includes a support body and a sliding block. The sliding block is connected to the support body and is disposed around the support body. The sliding block is located in the receiving cavity and is in sealing contact with the inner wall surface of the receiving cavity. The sliding block divides the accommodating cavity into a first cavity and a second cavity arranged sequentially along the opening towards the accommodating cavity, and the second elastic element is disposed in the second cavity; The strut structure also includes a damping pipe, which is connected to the first cavity and is suitable for connecting an external oil supply device to introduce oil into the first cavity.

[0028] Through the above technical solution, by placing the sliding block inside the accommodating cavity and sealing it in contact with the inner wall of the accommodating cavity, the accommodating cavity can limit and guide the sliding block to prevent it from tilting, shaking or getting stuck during its movement in the first direction. This ensures the linearity and stability of the sliding block's movement, which in turn ensures the linearity and stability of the movement of the second support member connected to the sliding block, and ultimately ensures the smoothness of the opening and closing of the tailgate.

[0029] By connecting the damping pipe to the first cavity, when the tailgate needs to be closed, oil is supplied to the first cavity via an external oil supply device, causing a rapid increase in pressure within the first cavity. This pushes the sliding block towards the second elastic member within the accommodating cavity. The second elastic member undergoes elastic deformation under the pressure of the sliding block, further driving the tailgate, connected to the second support member, to move in the closing direction until the tailgate reaches the closed position. Simultaneously, the ball head slides sequentially over the protrusion and groove. Whenever the ball head is located on the protrusion, the moving rod connected to the ball head contacts the counter body, triggering the counter body to complete one count. Based on the count detected by the counter body, the relative displacement of one of the first and second support members relative to the other can be accurately calculated, thus accurately calculating the actual opening degree of the tailgate. This control method, by adjusting the flow rate or pressure of the supplied oil, can precisely control the moving speed and stroke of the sliding block, achieving precise adjustment of the tailgate closing speed and position, effectively avoiding impact caused by excessive speed or affecting the user experience due to excessively slow speed. Meanwhile, the structural design that combines pneumatics and elastic components can effectively improve the reliability and stability of the strut structure's movement.

[0030] Secondly, a vehicle is also provided, comprising a body, a tailgate, and a strut structure as described in any of the above technical solutions, the strut structure being connected between the body and the tailgate for pushing the tailgate open or close.

[0031] Since the vehicle provided in this application includes the strut structure as described in any of the above embodiments, both can solve the same technical problem and achieve the same effect.

[0032] In some embodiments, the rear door includes a first door body and a second door body, the first door body being located above the second door body and capable of being connected to or disconnected from the second door body; The strut structure includes a first strut structure and a second strut structure. Both the first strut structure and the second strut structure are rotatably connected to the vehicle body. The first strut structure can be connected to or disconnected from the first door body, and the second strut structure can be connected to or disconnected from the second door body. The tailgate includes a first state, a second state, and a third state. When the tailgate is in the first state, the first door body is connected to the second door body and the first door body is connected to the first support structure, while the second door body is disconnected from the second support structure, so that the first door body and the second door body can rotate upward. When the tailgate is in the second state, the first door body is connected to the second door body, and the second door body is connected to the second support structure, while the first door body is disconnected from the first support structure, so that the first door body and the second door body can rotate downwards. When the rear door is in the third state, the first door body is disconnected from the second door body, and the first door body is connected to the first support rod structure, while the second door body is connected to the second support rod structure, so that the first door body rotates upward and the second door body rotates downward.

[0033] Through the above technical solution, when the tailgate is in the first state, the controller locks the first and second connecting structures to connect the first and second door bodies. The controller also locks the third and fourth connecting structures to connect the first door body to the first support rod structure. Finally, the controller unlocks the fifth and sixth connecting structures to disconnect the second door body from the second support rod structure. At this time, the first and second door bodies form a single unit, with the first door body locked to the first support rod structure and the second door body unlocked to the second support rod structure. The first support rod structure is rotatably connected to the vehicle body. Thus, by simply controlling the movement of the first support rod structure, the first and second door bodies can be driven to rotate synchronously upwards, achieving synchronous opening of the first and second door bodies.

[0034] When the tailgate is in the second state, the controller locks the first and second connecting structures to connect the first and second door bodies. The controller unlocks the third and fourth connecting structures to disconnect the first door body from the first support structure. The controller locks the fifth and sixth connecting structures to connect the second door body to the second support structure. At this time, the first and second door bodies form a single unit, with the first door body unlocked from the first support structure and the second door body locked from the second support structure. The second support structure is rotatably connected to the vehicle body. Therefore, by controlling the movement of the second support structure, the first and second door bodies can be driven to rotate downwards synchronously, achieving synchronous opening of the first and second door bodies, i.e., opening the tailgate.

[0035] When the tailgate is in the third state, the controller unlocks the first and second connecting structures to disconnect the first and second doors. The controller then locks the third and fourth connecting structures to connect the first door to the first support structure. Finally, the controller locks the fifth and sixth connecting structures to connect the second door to the second support structure. At this time, the first and second doors are independent of each other, and both the first and second doors are locked to the first and second support structures, respectively. Both the first and second support structures are rotatably connected to the vehicle body. Thus, by controlling the movement of the first support structure, the first door can be driven to rotate upwards, opening it. Simultaneously, by controlling the movement of the second support structure, the second door can be driven to rotate downwards, opening it. This allows for the separate opening of the first and second doors, i.e., the tailgate itself.

[0036] Thus, by controlling the actions of the first, second, third, fourth, fifth, and sixth connecting structures, as well as the first and second support structures, the controller can switch the connection states between the first and second doors, between the first door and the first support structure, and between the second door and the second support structure. This allows the tailgate to switch between the first, second, and third states, satisfying the user's need to switch the tailgate from the closed to the open state in multiple ways.

[0037] In some embodiments, the vehicle body includes a vehicle body and a telescopic device connected to the vehicle body, a first strut structure is connected to the telescopic device, and the telescopic device is used to drive the first strut structure to move along the length direction of the vehicle.

[0038] Through the above technical solution, by connecting the first support rod structure to the telescopic device, the first support rod structure and the telescopic device form a whole, and the telescopic device is rotatably connected to the vehicle body. Thus, when the tailgate is in the first state, the controller only needs to control the movement of the first support rod structure to drive the first door and the second door, which are connected to the first support rod structure, to rotate synchronously upwards, achieving synchronous opening of the first and second doors.

[0039] When the first and second doors are fully open, the controller moves the telescopic device, which in turn drives the first support structure connected to the telescopic device to move along the length of the vehicle. This further drives the first and second doors to move synchronously along the length of the vehicle, allowing the entire tailgate to extend along the length of the vehicle to meet the user's needs for a camping canopy. Specifically, as the sun moves, the position of the tailgate can be adjusted via the telescopic device to better provide shade for the user.

[0040] In some embodiments, the vehicle body includes a vehicle body and a guide rail structure connected to the vehicle body, and the second strut structure is slidably connected to the guide rail structure along the height direction of the vehicle.

[0041] Through the above technical solution, by sliding the second support rod structure along the height direction of the vehicle to the guide rail structure, the second support rod structure can be driven to move along the length direction of the vehicle, and the guide rail structure is rotatably connected to the vehicle body. Thus, when the tailgate is in the second state, the controller only needs to control the movement of the second support rod structure to drive the first and second door bodies connected to the second support rod structure to rotate downwards synchronously, achieving synchronous opening of the first and second door bodies.

[0042] When the first and second doors are fully open, the second support structure moves along the height of the vehicle, which in turn drives the first and second doors to move synchronously along the height of the vehicle. This causes the entire tailgate to move along the height of the vehicle until it descends to a position suitable for pets to get in and out, thus meeting the needs of pets getting in and out of the vehicle.

[0043] In some embodiments, the vehicle body includes a vehicle body and a pivot rotatably connected to the vehicle body. The pivot is located at one end of the vehicle body in the width direction of the vehicle, and the axis of rotation of the pivot is aligned with the length direction of the vehicle. The pivot can be connected to or disconnected from the second door. The tailgate also includes a fourth state, in which the tailgate is open, the second door body is connected to the pivot, the second door body is disconnected from the second strut structure, and at least part of the second door body is located on one side of the vehicle body in the width direction of the vehicle.

[0044] With the above technical solution, when the tailgate is in the fourth state, it is fully open. At this time, the second door is connected to the pivot and disconnected from the second support structure, thus unlocking the second door and the second support structure. Then, controlling the pivot to rotate drives the second door connected to the pivot to rotate along the pivot's rotation axis, causing the tailgate to rotate to one side of the vehicle's width direction. This frees the tailgate from the vehicle's spatial limitations, providing users with more expandable space and meeting their needs for independent platform scenarios. For example, users may need a table or other independent platform for temporary rest during short trips or outdoor camping.

[0045] In some embodiments, the rear door further includes a support leg structure, which is rotatably connected to at least one side of the second door body along the thickness direction of the second door body.

[0046] With the above technical solution, when the rear door is in the second, third or fourth state, the support leg structure can contact the ground to support the second door body and improve the stability of the second door body in the open state.

[0047] Thirdly, a vehicle control method is also provided, the control method including: If the tailgate needs to be switched to the first state, the first door body is connected to the second door body, the first door body is connected to the first support structure, and the second door body is disconnected from the second support structure, so that the first door body and the second door body can rotate upward as a whole; If the rear door needs to be switched to the second state, the first door body is connected to the second door body, the second door body is connected to the second support structure, and the first door body is disconnected from the first support structure, so that the first door body and the second door body can rotate downward as a whole. If the rear door needs to be switched to the third state, the first door body is disconnected from the second door body, the first door body is connected to the first support structure, and the second door body is connected to the second support structure, so that the first door body rotates upward and the second door body rotates downward.

[0048] In some embodiments, the control method further includes: when the tailgate is switched to the second state or the third state, if the tailgate needs to be switched to the fourth state, controlling the second door body to connect with the pivot, disconnecting the second door body from the second strut structure, and rotating the second door body around the pivot so that at least a portion of the second door body is located on one side of the vehicle body in the width direction of the vehicle.

[0049] The beneficial effects of this application are: (1) The strut structure provided in this application has a plurality of protrusions spaced apart along a first direction on one of the first support member and the second support member, and a counter assembly is disposed on the other of the first support member and the second support member. When the first support member and the second support member move relative to each other along the first direction, the counter assembly can detect the number of protrusions passing through the counter assembly in real time. Since the plurality of protrusions are spaced apart along the first direction, the relative displacement of one of the first support member and the second support member relative to the other can be accurately calculated based on the number detected by the counter assembly, thereby accurately calculating the actual opening degree of the tailgate.

[0050] Specifically, the calculation process for the actual opening degree of the tailgate is as follows: Number of protrusions detected by the counter component / Total number of protrusions * Maximum opening degree of the tailgate. For example, assuming the counter component detects 80 protrusions, the total number of protrusions is 100, and the maximum opening degree of the tailgate is 90°, then the actual opening degree of the tailgate is: 80 / 100 * 90° = 72°.

[0051] Compared with the existing technology that indirectly calculates the position of the tailgate by detecting the number of rotations of the motor spindle, this solution uses a counter component to directly measure the actual position of the tailgate. This can fundamentally avoid the cumulative errors caused by factors such as motor tolerances and mechanical clearances of the transmission mechanism, significantly improving the accuracy and reliability of tailgate opening detection. Thus, precise control of the tailgate opening can be achieved based on accurate position information, meeting users' precise parking requirements for the predetermined opening and improving the user experience.

[0052] (2) Through the above technical solution, during the relative movement of the first support member and the second support member, the moving member can slide past the protrusion and the groove in sequence. Whenever the moving member contacts the protrusion, the moving member contacts the counter body to complete one count, and the counter body accumulates the detected quantity. Based on the quantity accumulated by the counter body, the relative displacement of one of the first support member and the second support member relative to the other can be accurately calculated, thereby accurately calculating the actual opening degree of the tailgate. This calculation method has a simple structure and is easy to implement, and can complete high-precision position detection without complex sensors.

[0053] (3) Through the above technical solution, during the relative movement of the first support member and the second support member, the moving member composed of the moving rod and the ball head slides along the first direction. The ball head slides over the protrusion and the groove in sequence. Whenever the ball head slides over the protrusion, the moving rod contacts the protrusion and triggers the counter body to complete one count. The counter body accumulates the detected quantity. Based on the quantity accumulated by the counter body, the relative displacement of one of the first support member and the second support member relative to the other can be accurately calculated, thereby accurately calculating the actual opening of the back door. This moving member composed of the moving rod and the ball head has a simple structure and is easy to implement. At the same time, since the ball head is in point contact with the protrusion and the groove, it can effectively reduce sliding friction, reduce wear, and improve the smoothness of the detection process when sliding over the protrusion and the groove in sequence.

[0054] (4) Through the above technical solution, by placing the first elastic element between the ball head and the fixed element, when the ball head is located on the protrusion, the first elastic element is squeezed or stretched by the fixed element to undergo elastic deformation, so that the moving rod connected to the ball head contacts the counter body and triggers the counter body to complete one count. When the ball head slides past the protrusion and enters the groove, the compressed first elastic element is reset and applies a force away from the counter body to the ball head, so that the ball head is located in the groove, thereby separating the moving rod from the counter and preparing for the next count.

[0055] Thus, by setting up the first elastic element, after the ball head passes the protrusion, the elastic element can drive the ball head to quickly return to the groove, ensuring the continuity of the ball head's sliding between the protrusion and the groove. This not only avoids the problem of missed counts caused by the ball head getting stuck or not returning in time, but also ensures that each protrusion can be accurately detected, thereby significantly improving the reliability of the counter body's counting and the continuity of the detection process.

[0056] (5) Through the above technical solution, by placing the second elastic element between the first support element and the second support element, the second elastic element has elastic deformation when the tailgate is closed, and when the tailgate needs to be opened, the second elastic element releases its elastic force to push the tailgate connected to the strut structure to move in the opening direction. This makes it easier to open the tailgate and makes opening the tailgate more effortless.

[0057] Simultaneously, the ball head slides sequentially over the protrusion and the groove. Whenever the ball head is on the protrusion, the moving rod connected to the ball head contacts the counter body, triggering the counter body to complete one count. Based on the count detected by the counter body, the relative displacement of one of the first and second support members relative to the other can be accurately calculated, thereby accurately calculating the actual opening degree of the tailgate.

[0058] (6) Through the above technical solution, by placing the sliding block in the accommodating cavity and sealing it in contact with the inner wall of the accommodating cavity, the accommodating cavity can limit and guide the sliding block to avoid the sliding block from deviating, shaking or getting stuck during the movement of the sliding block in the first direction, thereby ensuring the linearity and stability of the movement of the sliding block, thereby ensuring the linearity and stability of the movement of the second support member connected to the sliding block, and thus ensuring the smoothness of the opening and closing of the rear door.

[0059] By connecting the damping pipe to the first cavity, when the tailgate needs to be closed, oil is introduced into the first cavity through an external air source, causing the pressure inside the first cavity to increase rapidly. This pushes the sliding block towards the second elastic element within the accommodating cavity. The second elastic element undergoes elastic deformation under the pressure of the sliding block, further driving the tailgate, connected to the second support element, to move in the closing direction until the tailgate reaches the closed position. Simultaneously, the ball head slides sequentially over the protrusion and groove. Whenever the ball head is located on the protrusion, the moving rod connected to the ball head contacts the counter body, triggering the counter body to complete one count. Based on the count detected by the counter body, the relative displacement of one of the first and second support elements relative to the other can be accurately calculated, thus accurately calculating the actual opening degree of the tailgate. This control method, by adjusting the flow rate or pressure of the introduced oil, can precisely control the moving speed and stroke of the sliding block, achieving precise adjustment of the tailgate closing speed and position, effectively avoiding impact caused by excessive speed or affecting the user experience due to excessively slow speed. Meanwhile, the structural design that combines pneumatics and elastic components can effectively improve the reliability and stability of the strut structure's movement. Attached Figure Description

[0060] Figure 1 A schematic diagram of the structure of a vehicle provided for some embodiments of this application; Figure 2 for Figure 1 A partial structural schematic diagram of the vehicle shown. Figure 3 for Figure 2 A schematic diagram showing the relationship between the first strut structure and the first door in the vehicle; Figure 4 for Figure 2 A schematic diagram illustrating the relationship between the vehicle body and the second strut structure. Figure 5 for Figure 2 Schematic diagram showing the relationship between the vehicle's central pivot and the second door; Figure 6 for Figure 2 A partial structural schematic diagram of the vehicle shown. Figure 7 for Figure 2 A schematic diagram of the strut structure in the vehicle shown. Figure 8 for Figure 4 A partial structural diagram of the strut structure shown.

[0061] Figure label: 100. Vehicle; 10. Body; 101. Body body; 102. Telescopic device; 103. Guide rail structure; 104. Rotating shaft; 20. Rear door; 201. First door body; 2011. First connecting structure; 2012. Third connecting structure; 202. Second door body; 2021. Second connecting structure; 2022. Fifth connecting structure; 203. Support leg structure; 30. Support rod structure; 301. First support rod structure; 301A. Air intake chamber; 3011. Fourth connecting structure; 3011A. Steel ball; 302. Second Support structure; 3021, sixth connection structure; 40, air intake pipe; 1, first support member; 11, accommodating cavity; 111, first cavity; 112, second cavity; 12, opening; 2, second support member; 2A, protrusion; 21, support member body; 22, sliding block; 3, counter assembly; 31, fixing member; 32, counter body; 33, moving member; 331, ball head; 332, moving rod; 4, first elastic member; 5, relay; 6, second elastic member; 7, damping pipe; 8, auxiliary baffle; 9, sliding baffle. Detailed Implementation

[0062] The technical solutions in the embodiments of this application will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only a part of the embodiments of this application, and not all of the embodiments. All other embodiments obtained by those skilled in the art based on the embodiments provided in this application are within the scope of protection of this application.

[0063] The embodiments of the present invention will be described below with reference to the accompanying drawings and preferred embodiments. Those skilled in the art can easily understand other advantages and effects of the present invention from the content disclosed in this specification. The present invention can also be implemented or applied through other different specific embodiments, and various details in this specification can also be modified or changed based on different viewpoints and applications without departing from the spirit of the present invention. It should be understood that the preferred embodiments are only for illustrating the present invention and not for limiting the scope of protection of the present invention.

[0064] It should be noted that the illustrations provided in the following embodiments are only schematic representations of the basic concept of the present invention. Therefore, the drawings only show the components related to the present invention and are not drawn according to the actual number, shape and size of the components in the actual implementation. In the actual implementation, the form, quantity and proportion of each component can be arbitrarily changed, and the layout of the components may also be more complex.

[0065] This application provides a vehicle that can be a pure gasoline vehicle, a pure electric vehicle, a hybrid vehicle, etc. The vehicle can also be a sedan, SUV, MPV, sports car, racing car, etc.

[0066] Please see Figure 1 The vehicle 100 may include a body 10 and a tailgate 20. Along the length of the vehicle 100, the tailgate 20 is located on the rear side of the body 10 and is rotatably connected to the body 10, and is used to open or close the trunk of the vehicle 100.

[0067] In some examples, the tailgate 20 can be a split tailgate structure, such as a tailgate structure with doors opening vertically. Alternatively, the tailgate 20 can also be a one-piece tailgate structure, such as a tailgate structure that rotates upwards or downwards as a whole.

[0068] This application is provided as an example of a split-type rear tailgate structure for the rear tailgate 20.

[0069] In some embodiments, please refer to Figure 1 and Figure 2 The vehicle 100 may also include a strut structure 30 connected between the body 10 and the tailgate 20 for pushing the tailgate 20 to open or close the trunk.

[0070] In this way, by connecting the strut structure 30 between the vehicle body 10 and the tailgate 20, the tailgate 20 can be moved to open and close. This connection method is simple in structure and easy to implement.

[0071] In some examples, the connection between the strut structure 30 and the vehicle body 10, and between the strut structure 30 and the tailgate 20, can be the same. For example, the strut structure 30 and the vehicle body 10, and the strut structure 30 and the tailgate 20, can be rotatably connected by hinges, ball joints, pins, etc.

[0072] Alternatively, the connection methods between the strut structure 30 and the body 10, and between the strut structure 30 and the tailgate 20, can be different. For example, the strut structure 30 and the body 10 can be rotatably connected by hinges, ball joints, pins, etc., and the strut structure 30 and the tailgate 20 can be detachably connected by magnetic structures, snap-fit ​​structures, etc.

[0073] This application is illustrated by way of example, with the strut structure 30 rotatably connected to the vehicle body 10 and the strut structure 30 detachably connected to the tailgate 20.

[0074] In some embodiments, the tailgate 20 may include a first door body 201 and a second door body 202. The first door body 201 is located above the second door body 202 and can be connected or disconnected from the second door body 202. For example, the first door body 201 and the second door body 202 can be connected or disconnected via a magnetic structure, a snap-fit ​​structure, or the like. Thus, when the tailgate 20 is closed, the first door body 201 and the second door body 202 can be connected to ensure the stability of the tailgate 20 when closed, and when the tailgate 20 needs to be opened, the first door body 201 and the second door body 202 can be disconnected to allow the user to selectively open either the first door body 201 or the second door body 202 as needed.

[0075] In some embodiments, the strut structure 30 may include a first strut structure 301 and a second strut structure 302. Both the first strut structure 301 and the second strut structure 302 are rotatably connected to the vehicle body 10. The first strut structure 301 can be connected to or disconnected from the first door body 201, and the second strut structure 302 can be connected to or disconnected from the second door body 202.

[0076] In this way, by setting up the first support structure 301 and the second support structure 302, the opening and closing of the first door 201 can be achieved by controlling the first support structure 301, and the opening and closing of the second door 202 can be achieved by controlling the second support structure 302, thus realizing separate control of the first door 201 and the second door 202. In this way, users can selectively open or close the first door 201 or the second door 202 according to their needs to meet diverse usage scenarios.

[0077] Furthermore, the design of a detachable connection between the first support structure 301 and the first door body 201, and between the second support structure 302 and the second door body 202, allows the first door body 201 to be separated from the first support structure 301 and connected to the second door body 202 when necessary, or the second door body 202 to be separated from the second support structure 302 and connected to the first door body 201. This improves the flexibility of controlling the first door body 201 and the second door body 202 and facilitates user operation.

[0078] When it is necessary to put small items into the trunk, the first door 201 and the second door 202 can be disconnected, allowing the first door 201 and the second door 202 to move independently, enabling the separate opening and closing of either the first door 201 or the second door 202, thus meeting different user needs. For example, when putting small items into the trunk, only the first door 201 can be opened and the second door 202 closed. Alternatively, only the second door 202 can be opened and the first door 201 closed.

[0079] The tailgate 20 can include a first state, a second state, and a third state. In the first state, the tailgate 20 is connected to the first door body 201 and the second door body 202, and the first door body 201 is connected to the first support rod structure 301. The second door body 202 is disconnected from the second support rod structure 302, allowing both the first and second door bodies 201 to rotate upwards. For example, in the first state, the first and second door bodies 201 and 202 are positioned as a whole at the top of the vehicle body 10. In this state, the tailgate 20 can be used as a sunshade, allowing users to take shelter under it during outdoor activities. Also for example, the tailgate 20 can be in the first state when it is necessary to place large items in the trunk.

[0080] When the tailgate 20 is in the second state, the first door body 201 is connected to the second door body 202, and the second door body 202 is connected to the second support structure 302. The first door body 201 is disconnected from the first support structure 301, allowing the first door body 201 and the second door body 202 to rotate downwards. In this second state, the first door body 201 and the second door body 202 are positioned as a whole at the lower end of the vehicle body 10. At this time, the tailgate 20 can be used as a table, facilitating recreational activities or meals during outdoor activities.

[0081] When the tailgate 20 is in the third state, the first door 201 and the second door 202 are disconnected, and the first door 201 is connected to the first support structure 301, while the second door 202 is connected to the second support structure 302, allowing the first door 201 to rotate upwards and the second door 202 to rotate downwards. In this third state, the first door 201 is at the upper end of the vehicle body, and the second door 202 is at the lower end. In this position, the second door 202 can be used as a temporary seat or table, while the first door 201 can provide shade, improving the user's comfort during outdoor activities.

[0082] When a large table is not needed, only the second door 202 can be used. When a larger table is needed, the back door 20 can be switched to the second state, and the first door 201 and the second door 202 can be used together as a table.

[0083] In this way, by switching the connection states between the first door 201 and the second door 202, between the first door 201 and the first support structure 301, and between the second door 202 and the second support structure 302, that is, by selectively connecting or disconnecting the first door 201 and the second door 202, the first door 201 and the first support structure 301, and the second door 202 and the second support structure 302, the tailgate 20 can be switched between a first state, a second state, and a third state. This satisfies the user's need to switch the tailgate 20 from a closed state to an open state, increases the functionality of the tailgate 20, and improves its applicability.

[0084] In some examples, both the first strut structure 301 and the second strut structure 302 can be rotatably connected to the vehicle body 10 via hinges, ball joints, pins, etc.

[0085] In some embodiments, the vehicle 100 may further include a first connecting structure 2011 and a second connecting structure 2021. The first connecting structure 2011 is disposed on the first door 201, and the second connecting structure 2021 is disposed on the second door 202. The first connecting structure 2011 and the second connecting structure 2021 cooperate with each other to realize the connection and disconnection of the first door 201 and the second door 202.

[0086] For example, the first connecting structure 2011 and the second connecting structure 2021 can be magnetic structures. As another example, the first connecting structure 2011 and the second connecting structure 2021 can be electrically driven snap-fit ​​structures. For instance, the first connecting structure 2011 can be two clamping members driven by a motor, capable of moving in opposite directions, and the second connecting structure 2021 can be a block structure, with the two clamping members clamping the second connecting structure 2021 to achieve snap-fit, and the two clamping members separating to achieve disconnection of the first connecting structure 2011 and the second connecting structure 2021. As yet another example, the first connecting structure 2011 can be a snap-fit ​​block driven by a motor, and the second connecting structure 2021 can be a block structure with a snap-fit ​​groove. The connection and disconnection of the first connecting structure 2011 and the second connecting structure 2021 are achieved by the snap-fit ​​block entering and exiting the snap-fit ​​groove.

[0087] In some embodiments, the vehicle 100 may further include a third connecting structure 2012 and a fourth connecting structure 3011. The third connecting structure 2012 is disposed on the first door body 201, and the fourth connecting structure 3011 is disposed on the first support structure 301. The third connecting structure 2012 and the fourth connecting structure 3011 cooperate with each other to realize the connection and disconnection of the first door body 201 and the first support structure 301.

[0088] In some embodiments, the vehicle 100 may further include a fifth connecting structure 2022 and a sixth connecting structure 3021. The fifth connecting structure 2022 is disposed on the second door body 202, and the sixth connecting structure 3021 is disposed on the second support structure 302. The fifth connecting structure 2022 and the sixth connecting structure 3021 cooperate with each other to realize the connection and disconnection of the second door body 202 and the second support structure 302.

[0089] For example, the structure and engagement of the third connection structure 2012 and the fourth connection structure 3011, as well as the structure and engagement of the fifth connection structure 2022 and the sixth connection structure 3021, can be referred to the structure and engagement of the first connection structure 2011 and the second connection structure 2021, and will not be described in detail here.

[0090] In some embodiments, the vehicle 100 may further include a controller, which is electrically connected via hardwire to a first connection structure 2011, a second connection structure 2021, a third connection structure 2012, a fourth connection structure 3011, a fifth connection structure 2022, a sixth connection structure 3021, a first strut structure 301, and a second strut structure 302.

[0091] When the controller receives a request to open or close the rear door 20, the user can transmit the signal to the CAN bus or hard wire via a physical switch, soft switch, key switch, sensor switch, remote control switch, etc., and then transmit it to the strut structure 30 via the CAN bus or hard wire.

[0092] When the tailgate 20 is in the first state, the controller locks the first connecting structure 2011 and the second connecting structure 2021 to connect the first door body 201 and the second door body 202. The controller locks the third connecting structure 2012 and the fourth connecting structure 3011 to connect the first door body 201 to the first support rod structure 301. The controller unlocks the fifth connecting structure 2022 and the sixth connecting structure 3021 to disconnect the second door body 202 from the second support rod structure 302. At this time, the first door body 201 and the second door body 202 form a whole, and the first door body 201 is locked from the first support rod structure 301, while the second door body 202 is unlocked from the second support rod structure 302. The first support rod structure 301 is rotatably connected to the vehicle body 10. Thus, by simply controlling the movement of the first support structure 301, the first door 201 and the second door 202 can be driven to rotate upward synchronously, thereby achieving the synchronous opening of the first door 201 and the second door 202.

[0093] When the tailgate 20 is in the second state, the controller locks the first connecting structure 2011 and the second connecting structure 2021 to connect the first door body 201 and the second door body 202. The controller unlocks the third connecting structure 2012 and the fourth connecting structure 3011 to disconnect the first door body 201 from the first support rod structure 301. The controller locks the fifth connecting structure 2022 and the sixth connecting structure 3021 to connect the second door body 202 to the second support rod structure 302. At this time, the first door body 201 and the second door body 202 form a whole, and the first door body 201 is unlocked from the first support rod structure 301, while the second door body 202 is locked from the second support rod structure 302. The second support rod structure 302 is rotatably connected to the vehicle body 10. Thus, by simply controlling the movement of the second support structure 302, the first door 201 and the second door 202 can be driven to rotate downward synchronously, thereby achieving the synchronous opening of the first door 201 and the second door 202, that is, the opening of the back door 20.

[0094] When the tailgate 20 is in the third state, the controller controls the first connecting structure 2011 and the second connecting structure 2021 to be unlocked, thereby disconnecting the first door body 201 from the second door body 202. The controller controls the third connecting structure 2012 and the fourth connecting structure 3011 to be locked, thereby connecting the first door body 201 to the first support rod structure 301. The controller controls the fifth connecting structure 2022 and the sixth connecting structure 3021 to be locked, thereby connecting the second door body 202 to the second support rod structure 302. At this time, the first door body 201 and the second door body 202 are independent of each other, and the first door body 201 is locked to the first support rod structure 301, and the second door body 202 is locked to the second support rod structure 302. Both the first support rod structure 301 and the second support rod structure 302 are rotatably connected to the vehicle body 10. Thus, by controlling the movement of the first support structure 301, the first door 201 can be driven to rotate upward, thereby opening the first door 201. At the same time, by controlling the movement of the second support structure 302, the second door 202 can be driven to rotate downward, thereby opening the second door 202. This allows the first door 201 and the second door 202 to be opened separately, i.e., the rear door 20 can be opened.

[0095] Thus, by controlling the first connecting structure 2011, the second connecting structure 2021, the third connecting structure 2012, the fourth connecting structure 3011, the fifth connecting structure 2022, the sixth connecting structure 3021, the first support structure 301, and the second support structure 302, the controller can switch the connection states between the first door 201 and the second door 202, between the first door 201 and the first support structure 301, and between the second door 202 and the second support structure 302. This allows the rear door 20 to switch between the first, second, and third states, thereby satisfying the user's need to switch the rear door 20 from the closed state to the open state in multiple ways.

[0096] In some embodiments, the vehicle body 10 may include a vehicle body 101 and a telescopic device 102 connected to the vehicle body 101. A first strut structure 301 is connected to the telescopic device 102, and the telescopic device 102 is used to drive the first strut structure 301 to move along the length direction of the vehicle 100.

[0097] The controller is electrically connected to the telescopic device 102 and is used to control the telescopic device 102 to move along the length of the vehicle 100.

[0098] In this way, by connecting the first support rod structure 301 to the telescopic device 102, the first support rod structure 301 and the telescopic device 102 form a whole, and the telescopic device 102 is rotatably connected to the vehicle body 10. Thus, when the tailgate 20 is in the first state, the controller only needs to control the movement of the first support rod structure 301 to drive the first door body 201 and the second door body 202 connected to the first support rod structure 301 to rotate upward synchronously, thereby realizing the synchronous opening of the first door body 201 and the second door body 202.

[0099] When the first door 201 and the second door 202 are fully open, the controller controls the telescopic device 102 to move, which drives the first support structure 301 connected to the telescopic device 102 to move along the length of the vehicle 100. This further drives the first door 201 and the second door 202 to move synchronously along the length of the vehicle 100, so that the entire tailgate 20 extends along the length of the vehicle 100 to meet the user's camping canopy requirements. Specifically, as the sun moves, the position of the tailgate 20 can be adjusted by the telescopic device 102 so that the tailgate 20 can better provide sunshade for the user.

[0100] In some embodiments, the telescopic device 102 may include a sleeve, a first telescopic rod, and a second telescopic rod. The sleeve is rotatably connected to the vehicle body 101, the first telescopic rod is slidably inserted into the interior of the second telescopic rod, and the second telescopic rod is slidably inserted into the interior of the sleeve.

[0101] In this way, the first telescopic rod can extend from the second telescopic rod, and the second telescopic rod can extend from the sleeve, so as to change the telescopic length of the telescopic device 102 along the length direction of the vehicle 100, thereby flexibly adjusting the position of the tailgate 20 relative to the vehicle body 101 to meet the user's needs for roof space in camping scenarios.

[0102] In some examples, the telescopic device 102 can be electrically driven. Exemplarily, the telescopic device 102 may also include a drive motor and a transmission structure. The drive motor is located inside the sleeve, and its output end is connected to the second telescopic rod via the transmission structure. Thus, the drive motor can control the movement of the second telescopic rod relative to the sleeve along the length direction of the vehicle 100 via the transmission structure, thereby adjusting the extension length of the telescopic device 102 along the length direction of the vehicle 100 to adjust the position of the tailgate 20 relative to the vehicle body 101. The driving method for the movement of the first telescopic rod relative to the second telescopic rod can be the same as the driving method for the movement of the second telescopic rod relative to the sleeve, and will not be described in detail here.

[0103] In some examples, the transmission structure can be a lead screw and nut structure. The transmission structure includes a lead screw and a nut. The lead screw is connected to the output end of the drive motor, and the nut is fixed to the inner wall of the second telescopic rod and threadedly engaged with the lead screw. When the drive motor drives the lead screw to rotate, the nut drives the second telescopic rod to extend or retract axially relative to the sleeve, simultaneously driving the first telescopic rod, which is slidably inserted inside, to move in tandem.

[0104] In this way, by controlling the forward and reverse rotation of the drive motor, the telescopic length of the telescopic device 102 along the length of the vehicle 100 can be precisely adjusted, thereby flexibly adjusting the position of the tailgate 20 relative to the vehicle body 101 to meet the user's needs for roof space in camping scenarios.

[0105] In some embodiments, please refer to Figures 1 to 3 The fourth connecting structure 3011 may also include a steel ball 3011A. The first support rod structure 301 is provided with an air intake chamber 301A. The steel ball 3011A is located in the air intake chamber 301A and is rotatably connected to the first support rod structure 301. The steel ball 3011A can also be connected or disconnected from the third connecting structure 2012.

[0106] The vehicle 100 may also include an air intake pipe 40, the air outlets of which are located in the air intake chamber 301A and facing the steel ball 3011A. The air intake pipe 40 is used to introduce gas toward the steel ball 3011A to drive the steel ball 3011A to rotate.

[0107] Multiple air intake pipes 40 are arranged in a matrix along the outer surface of the steel ball 3011A, so that the rotation direction of the steel ball 3011A can be adjusted by the airflow size of different air intake pipes 40, thereby adjusting the rotation direction of the first door body 201.

[0108] In this way, when the solar panel is integrated on the first door body 201, gas can be introduced into the steel ball 3011A through the air intake pipe 40 to drive the steel ball 3011A to rotate. Furthermore, the rotation direction of the steel ball 3011A can be adjusted by the airflow size of different air intake pipes 40, so that the steel ball 3011A rotates by a certain angle, further driving the fourth connecting structure 3011 connected to the steel ball 3011A to rotate by a certain angle. The third connecting structure 2012 and the fourth connecting structure 3011 are locked. The third connecting structure 2012 is located on the first door body 201 to drive the first door body 201 to rotate by a certain angle, so as to adjust the solar panel integrated on the first door body 201 to the optimal angle and maximize the solar energy collection efficiency.

[0109] In some embodiments, please refer to Figure 2 and Figure 4 The vehicle body 10 may include a vehicle body 101 and a guide rail structure 103 connected to the vehicle body 101. The second strut structure 302 is slidably connected to the guide rail structure 103 along the height direction of the vehicle 100.

[0110] The vehicle body 10 may also include a pushing structure, such as an electric push rod or a hydraulic push rod. The pushing structure is connected to the second support rod structure 302 and is used to push the support rod structure 302 to move on the guide rail structure 103. The controller is electrically connected to the pushing structure and is used to control the operation of the pushing structure to push the second support rod structure 302 to move along the height direction of the vehicle 100.

[0111] In this way, by sliding the second support rod structure 302 along the height direction of the vehicle 100 to the guide rail structure 103, the second support rod structure 302 can be driven to move along the length direction of the vehicle 100, and the guide rail structure 103 is rotatably connected to the vehicle body 10. Thus, when the tailgate 20 is in the second state, the controller only needs to control the movement of the second support rod structure 302 to drive the first door body 201 and the second door body 202 connected to the second support rod structure 302 to rotate downward synchronously, thereby realizing the synchronous opening of the first door body 201 and the second door body 202.

[0112] When the first door 201 and the second door 202 are fully open, the second support structure 302 moves along the height direction of the vehicle 100, further driving the first door 201 and the second door 202 to move synchronously along the height direction of the vehicle 100, thereby causing the entire rear door 20 to move along the height direction of the vehicle 100 until the rear door 20 moves and descends along the height direction of the vehicle 100 to a position suitable for pets to get in and out of the car, so as to meet the needs of pets getting in and out of the car.

[0113] In some examples, there can be multiple second strut structures 302. For example, there can be two second strut structures 302, with the guide rail structure 103 positioned between the two second strut structures 302. This improves the stability of the entire tailgate 20 as it moves along the height of the vehicle 100.

[0114] In some embodiments, please refer to Figure 2 and Figure 5 The vehicle body 10 may include a vehicle body 101 and a rotating shaft 104 rotatably connected to the vehicle body 101. The rotating shaft 104 is located at one end of the vehicle body 101 in the width direction of the vehicle 100, and the rotation axis of the rotating shaft 104 is aligned with the length direction of the vehicle 100. The rotating shaft 104 can be connected to or disconnected from the second door 202. For example, the rotating shaft 104 and the second door 202 can be connected or disconnected by means of a magnetic attraction structure, a snap-fit ​​structure, or other similar methods.

[0115] The controller is electrically connected to the motor that drives the rotating shaft 104 to rotate, and is used to control the rotating shaft 104 to rotate around the length of the vehicle 100.

[0116] The tailgate 20 may also include a fourth state in which the tailgate 20 is open, and the second door body 202 is connected to the pivot 104 and disconnected from the second strut structure 302. At least a portion of the second door body 202 is located on one side of the vehicle body 101 in the width direction of the vehicle 100.

[0117] It should be noted that the adjustment of the fourth state is performed while the tailgate 20 is in the second or third state. When the tailgate 20 is in the second or third state, the end of the second door 202 closest to the vehicle body is located at the pivot 104, allowing it to connect or disconnect from the pivot 104. Specifically, when the tailgate 20 is in the second state, it is open, meaning the first door 201 and the second door 202 open downwards as a single unit. When the tailgate 20 is in the third state, it is open, meaning the second door 202 opens downwards.

[0118] In this way, when the tailgate 20 is in the fourth state, it is fully open. At this time, the second door 202 is connected to the pivot 104, and the second door 202 is disconnected from the second support structure 302, so that the second door 202 and the second support structure 302 are in the unlocked state. Then, by controlling the pivot 104 to rotate, the second door 202 connected to the pivot 104 is driven to rotate along the rotation axis of the pivot 104, so that the tailgate 20 rotates to one side in the width direction of the vehicle body, that is, it breaks out of the space limitation of the vehicle 100, so as to better provide users with expandable space and meet the needs of users' independent platform scenarios, that is, users need a table or other independent platform for temporary rest when they are traveling on short-distance trips or camping outdoors.

[0119] In some embodiments, the vehicle 100 may further include a seventh connection structure and an eighth connection structure. The seventh connection structure is disposed on the second door 202, and the eighth connection structure is disposed on the rotating shaft 104. The seventh connection structure and the eighth connection structure cooperate with each other to realize the connection and disconnection of the second door 202 and the rotating shaft 104.

[0120] The structure and engagement of the seventh and eighth connection structures can be referenced from the structure and engagement of the first connection structure 2011 and the second connection structure 2021, and will not be elaborated here.

[0121] In some embodiments, please refer to Figure 2 and Figure 3 The rear door 20 may also include a support leg structure 203, which is rotatably connected to at least one side of the second door body 202 along the thickness direction of the second door body 202.

[0122] In this way, when the rear door 20 is in the second, third or fourth state, the support leg structure 203 can contact the ground to support the second door 202 and improve the stability of the second door 202 in the open state.

[0123] In some examples, the support leg structure 203 can be located on the side of the rear door 20 that is away from the second support rod structure 302. In this case, when the rear door 20 is in the second state, the support leg structure 203 can support the rear door 20, thereby improving the stability of the second door 202 in the open state.

[0124] In other examples, the support leg structure 203 can be located on the side of the rear door 20 facing the second strut structure 302. When the rear door 20 is in the fourth state, the support leg structure 203 can support the rear door 20, thereby improving the stability of the second door 202 in the open state.

[0125] In some examples, the outrigger structure 203 may include an outrigger rod rotatably connected to at least one side of the second door body 202 along its thickness direction. For example, the outrigger rod may be a manually operated support rod. Alternatively, the outrigger rod may also be an electrically operated support rod.

[0126] In some embodiments, to address the problem of low opening accuracy of the tailgate 20 in the prior art, this application provides a strut structure 30 for supporting the tailgate 20 of the vehicle 100.

[0127] In some embodiments, please refer to Figure 2 and Figure 7 The strut structure 30 may include a first support member 1, a second support member 2, and a counter assembly 3. The first support member 1 and the second support member 2 are capable of operating along a first direction (e.g., Figure 7 The direction A shown in the figure represents relative movement to push the rear door 20 open or close.

[0128] One of the first support member 1 and the second support member 2 is connected to the vehicle body, and the other is connected to the tailgate.

[0129] One of the first support member 1 and the second support member 2 is provided with a plurality of protrusions 2A spaced apart along a first direction. The counter assembly 3 is provided on the other of the first support member 1 and the second support member 2 and is used to detect the number of protrusions 2A that pass through the counter assembly 3 during the relative movement of the first support member 1 and the second support member 2.

[0130] In this way, by providing a plurality of protrusions 2A spaced apart along a first direction on one of the first support member 1 and the second support member 2, and by placing the counter assembly 3 on the other of the first support member 1 and the second support member 2, the counter assembly 3 can detect the number of protrusions 2A passing through it in real time as the first support member 1 and the second support member 2 move relative to each other along the first direction. Since the plurality of protrusions 2A are spaced apart along the first direction, the relative displacement of one of the first support member 1 and the second support member 2 relative to the other can be accurately calculated based on the number detected by the counter assembly 3, thereby accurately calculating the actual opening degree of the tailgate 20.

[0131] Specifically, the calculation process for the actual opening degree of the tailgate 20 is as follows: Number of protrusions 2A detected by counter component 3 / Total number of protrusions 2A * Maximum opening degree of tailgate 20. For example, assuming that the number of protrusions 2A detected by counter component 3 is 80, the total number of protrusions 2A is 100, and the maximum opening degree of tailgate 20 is 90°, then the actual opening degree of tailgate 20 is: 80 / 100 * 90° = 72°.

[0132] Compared with the existing technology that indirectly calculates the position of the tailgate 20 by detecting the number of rotations of the motor spindle, this solution uses the counter component 3 to directly measure the actual position of the tailgate 20. This can fundamentally avoid the cumulative error caused by factors such as motor tolerance and mechanical clearance of the transmission mechanism, and significantly improve the accuracy and reliability of the tailgate 20 opening detection. Thus, the tailgate 20 opening can be accurately controlled based on the precise position information, meeting the user's precise parking requirements for the predetermined opening and improving the user experience.

[0133] In some examples, the first support member 1 is provided with a plurality of protrusions 2A spaced apart along a first direction and connected to the back door, and the counter assembly 3 is provided on the second support member 2, which is connected to the back door.

[0134] Alternatively, the second support member 2 may have a plurality of protrusions 2A spaced apart along the first direction and connected to the tailgate, and the counter assembly 3 may be disposed on the first support member 1, which is connected to the tailgate. In either case, as the first support member 1 and the second support member 2 move relative to each other along the first direction, the counter assembly 3 can detect the number of protrusions 2A passing through the counter assembly 3 in real time. Based on the number detected by the counter assembly 3, the relative displacement of one of the first support member 1 and the second support member 2 relative to the other can be accurately calculated, thereby accurately calculating the actual opening degree of the tailgate 20.

[0135] In some examples, the first support member 1 and the second support member 2 can be plate-like structures, rod-like structures, block-like structures, strip-like structures, etc., and this application does not make specific limitations in this regard.

[0136] In some examples, multiple protrusions 2A are evenly arranged along a first direction in one of the first support member 1 and the second support member 2. In this way, the counter assembly 3 can accurately count the number of protrusions 2A passing through the counter assembly 3, and then determine the actual opening degree of the tailgate 20 based on the counting result.

[0137] In some examples, the number of protrusions 2A is set to an integer multiple of 10. For example, the number of protrusions 2A can be 50, 60, 70, 80, 90, 100, etc. In this way, when the counter component 3 detects the number of protrusions 2A that have passed, it can quickly calculate the proportion of the current opening to the total opening, simplifying the calculation process of the actual opening of the rear door 20.

[0138] In some embodiments, please refer to Figure 2 , Figure 7 and Figure 8A groove is formed between any two adjacent protrusions 2A. The counter assembly 3 may include a fixing member 31, a counter body 32, and a moving member 33. The fixing member 31 is disposed on the other of the first support member 1 and the second support member 2. The counter body 32 is connected to the fixing member 31. The moving member 33 moves along the second direction (e.g., Figure 8 Direction B shown in the figure is movably connected to the fixing member 31, and the second direction is perpendicular to the first direction.

[0139] During the relative movement of the first support member 1 and the second support member 2, the moving member 33 contacts the protrusion 2A and the groove in sequence. When the moving member 33 contacts the protrusion 2A, the moving member 33 contacts the counter body 32 to complete one count. When the moving member 33 contacts the groove, the moving member 33 separates from the counter.

[0140] The counter body 32 integrates a displacement sensor. Each time the moving part 33 contacts the displacement sensor, it can receive a signal from the detection protrusion 2A and transmit it to the counter body 32 for counting.

[0141] In this way, during the relative movement of the first support member 1 and the second support member 2, the moving member 33 can slide sequentially over the protrusion 2A and the groove. Each time the moving member 33 contacts the protrusion 2A, it contacts the counter body 32 to complete one count, and the counter body 32 accumulates the detected count. Based on the count accumulated by the counter body 32, the relative displacement of one of the first support member 1 and the second support member 2 relative to the other can be accurately calculated, thereby accurately calculating the actual opening degree of the tailgate 20. This calculation method has a simple structure and is easy to implement, achieving high-precision position detection without the need for complex sensors.

[0142] In some examples, both the fixing member 31 and the moving member 33 can be plate-like structures, rod-like structures, block-like structures, strip-like structures, etc.

[0143] In some embodiments, the movable member 33 may include a movable rod 332 and a ball head 331 connected to the movable rod 332. The movable rod 332 is movably connected to the fixed member 31 along the second direction. During the relative movement of the first support member 1 and the second support member 2, the ball head 331 moves sequentially in the protrusion 2A and the groove to drive the movable rod 332 to move along the second direction.

[0144] When the ball head 331 is located in the protrusion 2A, the moving rod 332 contacts the counter body 32 to complete one count. When the ball head 331 is located in the groove, the moving rod 332 separates from the counter.

[0145] In this way, during the relative movement of the first support member 1 and the second support member 2, the moving member 33, composed of the moving rod 332 and the ball head 331, slides along the first direction. The ball head 331 slides past the protrusion 2A and the groove in sequence. Each time the ball head 331 slides past the protrusion 2A, the moving rod 332 contacts the protrusion 2A and triggers the counter body 32 to complete one count. The counter body 32 accumulates the detected quantity. Based on the quantity accumulated by the counter body 32, the relative displacement of one of the first support member 1 and the second support member 2 relative to the other can be accurately calculated, thereby accurately calculating the actual opening degree of the tailgate 20. This moving member 33, composed of the moving rod 332 and the ball head 331, has a simple structure and is easy to implement. At the same time, since the ball head 331 has point contact with the protrusion 2A and the groove, it can effectively reduce sliding friction, reduce wear, and improve the smoothness of the detection process when sliding past the protrusion 2A and the groove in sequence.

[0146] In some embodiments, the strut structure 30 may further include a first elastic element 4, which is disposed between the ball head 331 and the fixing element 31. When the ball head 331 is located at the protrusion 2A, the first elastic element 4 undergoes elastic deformation.

[0147] In this way, by placing the first elastic element 4 between the ball head 331 and the fixing element 31, when the ball head 331 is located at the protrusion 2A, the first elastic element 4 undergoes elastic deformation due to compression or stretching by the fixing element 31, causing the moving rod 332 connected to the ball head 331 to contact the counter body 32 and trigger the counter body 32 to complete one count. When the ball head 331 slides past the protrusion 2A and enters the groove, the compressed first elastic element 4 returns to its original position and applies a force away from the counter body 32 to the ball head 331, causing the ball head 331 to be located in the groove, thereby separating the moving rod 332 from the counter and preparing for the next count.

[0148] Thus, through the provision of the first elastic element 4, after the ball head 331 passes the protrusion 2A, the elastic element can drive the ball head 331 to quickly return to the groove, ensuring the continuity of the ball head 331's sliding between the protrusion 2A and the groove. This not only avoids the problem of missed counts caused by the ball head 331 getting stuck or not returning in time, but also ensures that each protrusion 2A can be accurately detected, thereby significantly improving the reliability of the counter body 32's counting and the continuity of the detection process.

[0149] In some examples, the first elastic element 4 can be a spring. In other examples, the first elastic element 4 can also be rubber, latex, silicone, polyurethane elastomer, etc.

[0150] In some embodiments, the strut structure 30 may further include a locking structure that cooperates with the movable member 33 to lock the movable member 33 when the ball head 331 is located in the groove, thereby locking the first support member 1 and the second support member 2.

[0151] In this way, by cooperating with the locking structure and the moving part 33, when the ball head 331 is located in the groove, the locking structure can lock the first support 1 and the second support 2 to ensure the stability of the first support 1 and the second support 2 in the static state, and further ensure the position holding ability of the tailgate 20 in the open and closed states, thereby improving the stability of the tailgate 20 when it is opened or closed.

[0152] In some embodiments, the strut structure 30 may further include a relay 5, which is electrically connected to the controller for controlling the on / off state of the relay 5, and a locking structure is located between the moving part 33 and the counter body 32.

[0153] The locking structure and the counter body 32 are both connected to the controller.

[0154] In this way, when the ball head 331 is located in the groove, the moving part 33 is separated from the counter body 32. The counter body 32 sends this signal to the controller, and the controller controls the locking structure to move toward the moving part 33 in the second direction to limit the moving part 33, thereby locking the first support 1 and the second support 2.

[0155] In some examples, the locking structure may include a locking element and a driving element. The locking element cooperates with the moving element 33, and the driving element is electrically connected to the controller to drive the locking element to move between a locked position and an unlocked position. When the ball head 331 is located in the groove, the controller controls the driving element to move the locking element toward the moving element 33 in a second direction to limit the moving element 33, thereby locking the first support 1 and the second support 2. When unlocking is required, the controller controls the driving element to retract the locking element and release the lock.

[0156] For example, the locking element can be a plate-like structure, a rod-like structure, a block-like structure, a strip-like structure, etc., and this application does not specifically limit it. The driving element can be one of an electromagnet, a hydraulic cylinder, or a pneumatic cylinder, which only needs to drive the locking element to move between the locked position and the unlocked position.

[0157] In other examples, the locking structure may also include an electromagnet and an armature. The electromagnet is located within the fixed member 31, and the armature is connected to the movable member 33. When the ball head 331 is located within the groove, the movable member 33 is separated from the counter body 32. The counter body 32 sends this signal to the controller, which controls the electromagnet to be energized, causing the electromagnet to generate magnetism. The electromagnet generates a repulsive force on the armature, thereby keeping the movable member 33 within the groove and limiting its position, thus locking the first support member 1 and the second support member 2.

[0158] In some embodiments, the strut structure 30 may further include a second elastic element 6, which is disposed between the first support 1 and the second support 2. When the length of the strut structure 30 along the first direction becomes shorter, the second elastic element 6 undergoes elastic deformation.

[0159] In this way, by placing the second elastic element 6 between the first support element 1 and the second support element 2, the second elastic element 6 has elastic deformation when the tailgate 20 is closed. When it is necessary to open the tailgate 20, the second elastic element 6 releases its elastic force to push the tailgate 20, which is connected to the strut structure 30, to move in the opening direction. This facilitates the opening of the tailgate 20 and makes opening the tailgate 20 less strenuous.

[0160] Simultaneously, the ball head 331 slides sequentially over the protrusion 2A and the groove. Whenever the ball head 331 is located on the protrusion 2A, the moving rod 332 connected to the ball head 331 contacts the counter body 32 and triggers the counter body 32 to complete one count. Based on the count detected by the counter body 32, the relative displacement of one of the first support member 1 and the second support member 2 relative to the other can be accurately calculated, thereby accurately calculating the actual opening degree of the tailgate 20.

[0161] In some examples, the second elastic element 6 can be a spring. In other examples, the second elastic element 6 can also be rubber, latex, silicone, polyurethane elastomer, etc.

[0162] In some embodiments, the first support member 1 is provided with a receiving cavity 11 and an opening 12 communicating with the receiving cavity 11, the second support member 2 passes through the opening 12, and a portion of the second support member 2 is located inside the receiving cavity 11, and the second elastic member 6 is provided inside the receiving cavity 11 and is arranged around the second support member 2.

[0163] In this way, with the first support member 1 having a receiving cavity 11 and an opening 12 communicating with the receiving cavity 11, the second support member 2 passing through the opening 12, and a portion of the second support member 2 located within the receiving cavity 11, and the second elastic member 6 disposed within the receiving cavity 11 and surrounding the second support member 2, the structure of the strut structure 30 can be made more compact, thereby reducing the space occupied by the strut structure 30 on the vehicle 100. Furthermore, the elastic force applied by the elastic member to the second support member 2 is more uniform, improving the smoothness of the relative movement of the first support member 1 and the second support member 2.

[0164] In some other embodiments, the second support member 2 is disposed on one side of the first support member 1. The first support member 1 is provided with a guide rail and is connected to the vehicle body 10. The second support member 2 is slidably connected to the guide rail and is connected to the tailgate 20. The second elastic member 6 is connected between the second support member 2 and the first support member 1. Thus, when it is necessary to open the tailgate 20, the second elastic member 6 releases its elastic force to push the tailgate 20 connected to the second support member 2 to move in the opening direction.

[0165] In some embodiments, the second support member 2 may include a support member body 21 and a sliding block 22. The sliding block 22 is connected to the support member body 21 and is disposed around the support member body 21. The sliding block 22 is located within the receiving cavity 11 and is in sealing contact with the inner wall surface of the receiving cavity 11. The sliding block 22 is movable relative to the first support member 1 as the second support member 2 moves.

[0166] The sliding block 22 divides the accommodating cavity 11 into a first cavity 111 and a second cavity 112 arranged sequentially along the opening 12 towards the accommodating cavity 11, and the second elastic member 6 is disposed in the second cavity 112.

[0167] The strut structure 30 may also include a damping pipe 7, which is connected to the first cavity 111 and is adapted to be connected to an external oil supply device for introducing oil into the first cavity 111.

[0168] In this way, by placing the sliding block 22 inside the accommodating cavity 11 and sealing it in contact with the inner wall of the accommodating cavity 11, the accommodating cavity 11 can limit and guide the sliding block 22 to prevent it from tilting, shaking or getting stuck during its movement in the first direction. This ensures the linearity and stability of the movement of the sliding block 22, and thus ensures the linearity and stability of the movement of the second support member 2 connected to the sliding block 22, thereby ensuring the smoothness of the opening and closing of the tailgate 20.

[0169] By connecting the damping pipe 7 to the first cavity 111, when the tailgate 20 needs to be closed, oil is supplied to the first cavity 111 through an external oil supply device, causing the pressure in the first cavity 111 to increase rapidly. This pushes the sliding block 22 to move towards the second elastic member 6 within the accommodating cavity 11. The second elastic member 6 undergoes elastic deformation under the pressure of the sliding block 22, further driving the tailgate 20, which is connected to the second support member 2, to move in the closing direction until the tailgate 20 reaches the closed position. Simultaneously, the ball head 331 slides sequentially over the protrusion 2A and the groove. Whenever the ball head 331 is located at the protrusion 2A, the moving rod 332 connected to the ball head 331 contacts the counter body 32, triggering the counter body 32 to complete one count. Based on the count detected by the counter body 32, the relative displacement of one of the first support member 1 and the second support member 2 relative to the other can be accurately calculated, thereby accurately calculating the actual opening degree of the tailgate 20. This control method, by adjusting the flow rate or pressure of the supplied oil, can precisely control the moving speed and stroke of the sliding block 22, achieving precise adjustment of the closing speed and position of the tailgate 20, effectively avoiding impact caused by excessive speed or affecting the user experience due to excessively slow speed. Simultaneously, the structural design, through the coordinated operation of pneumatic and elastic components, can effectively improve the reliability and stability of the strut structure 30's movement.

[0170] After the tailgate 20 moves to the closed position, the controller controls the locking structure to limit the ball head 331, thereby limiting the second support member 2 to maintain the stability of the tailgate 20 in the closed state.

[0171] Alternatively, oil can be continuously introduced into the first cavity 111 to balance the pressure in the first cavity 111 with the elastic force of the second elastic member 6, thereby limiting the sliding block 22 and further limiting the second support member 2 to maintain the stability of the rear door 20 in the closed state.

[0172] In some examples, the oil supply device can be an oil pump, an oil tank, etc.

[0173] In some embodiments, the strut structure 30 may further include an auxiliary baffle 8 and a sliding baffle, the auxiliary baffle 8 and the sliding baffle being connected, the sliding baffle being connected to the support body 21 and being arranged around the support body 21, for forming a first cavity 111 with the sliding block 22 and the auxiliary baffle 8.

[0174] In some embodiments, the strut structure 30 may further include a first seal and a second seal. The first seal is disposed between the auxiliary baffle 8 and the sliding baffle and surrounds the support body 21. The second seal is disposed between the sliding block 22 and the sliding baffle and surrounds the support body 21.

[0175] In this way, by placing the first seal between the auxiliary baffle 8 and the sliding baffle, and surrounding the support body 21, the first seal can seal the gap between the auxiliary baffle 8 and the sliding baffle, thereby preventing oil in the first cavity 111 from leaking through the gap between the auxiliary baffle 8 and the sliding baffle. By placing the second seal between the sliding block 22 and the sliding baffle, and surrounding the support body 21, the second seal can seal the gap between the sliding block 22 and the sliding baffle, thereby preventing oil in the first cavity 111 from leaking through the gap between the sliding block 22 and the sliding baffle.

[0176] In some examples, both the first and second seals can be sealing rings, sealant, etc.

[0177] In some embodiments, this application also provides a control method for a vehicle 100, the control method including: If the rear door 20 needs to be switched to the first state, the first door body 201 is connected to the second door body 202, the first door body 201 is connected to the first support structure 301, and the second door body 202 is disconnected from the second support structure 302, so that the first door body 201 and the second door body 202 can rotate upward as a whole. If the rear door 20 needs to be switched to the second state, the first door 201 is connected to the second door 202, the second door 202 is connected to the second support structure 302, and the first door 201 is disconnected from the first support structure 301, so that the first door 201 and the second door 202 rotate downward as a whole. If the rear door 20 needs to be switched to the third state, the first door 201 and the second door 202 are disconnected, the first door 201 is connected to the first support structure 301, and the second door 202 is connected to the second support structure 302, so that the first door 201 rotates upward and the second door 202 rotates downward.

[0178] In this way, by controlling the connection state between the first door 201 and the second door 202, the connection state between the first door 201 and the first support structure 301, and the connection state between the second door 202 and the second support structure 302, the tailgate 20 can be switched between the first state, the second state, and the third state to meet the user's need to switch the tailgate 20 from the closed state to the open state, thereby increasing the functionality of the tailgate 20 and improving its applicability.

[0179] The system has three states: First, the first door 201 and the second door 202 can rotate upwards as a whole, opening upwards as a single unit. This is suitable for loading large items or for sunshade purposes. Second, the first door 201 and the second door 202 can rotate downwards as a single unit, opening downwards as a single unit. This is suitable for use with tables, allowing for outdoor activities such as entertainment or dining using the rear door 20. Third, the first door 201 can rotate upwards while the second door 202 rotates downwards, allowing the first door 201 to open upwards alone. This is suitable for loading small items or for sunshade purposes, while the second door 202 opens downwards alone, suitable for use as temporary seating or tables.

[0180] In some embodiments, this application also provides a control method for a vehicle 100, the control method may further include: When the tailgate 20 is switched to the second or third state, if the tailgate 20 needs to be switched to the fourth state, the second door body 202 is connected to the pivot 104 and disconnected from the second support structure 302. The second door body 202 rotates around the pivot 104 so that at least a portion of the second door body 202 is located on one side of the vehicle body 10 in the width direction of the vehicle 100.

[0181] In this way, by controlling the connection state between the second door 202 and the pivot 104, and the connection state between the second door 202 and the second support structure 302, the tailgate 20 can be switched from the second state to the fourth state, so that the tailgate 20 can be rotated to one side of the vehicle width direction. That is, the tailgate 20 is completely freed from the space limitation of the vehicle 100, so as to better provide users with expandable space and meet the needs of users' independent platform scenarios, that is, when users are on short trips or camping outdoors, they need an independent platform for temporary rest, such as a table or other activities.

[0182] Alternatively, by controlling the connection state between the second door 202 and the pivot 104, and the connection state between the second door 202 and the second strut structure 302, the tailgate 20 can be switched from the third state to the fourth state, so that the second door 202 in the tailgate 20 rotates to one side of the vehicle width direction, that is, the second door 202 is freed from the space limitation of the vehicle 100, so as to better provide users with expandable space and meet the needs of users' independent platform scenarios, that is, when users are on short-distance travel or camping outdoors, they need an independent platform for temporary rest, such as a table or other activities.

[0183] The switching control of the tailgate 20 of the vehicle 100 between the first state, the second state, the third state and the fourth state is executed by the controller.

[0184] The above are merely specific embodiments of this application, but the scope of protection of this application is not limited thereto. Any variations or substitutions within the technical scope disclosed in this application should be included within the scope of protection of this application. Therefore, the scope of protection of this application should be determined by the scope of the claims.

Claims

1. A strut structure, characterized in that, The strut structure for supporting the tailgate (20) of a vehicle includes a first support member (1), a second support member (2) and a counter assembly (3), wherein the first support member (1) and the second support member (2) are movable relative to each other in a first direction to push the tailgate (20) open or close; One of the first support member (1) and the second support member (2) is provided with a plurality of protrusions (2A) spaced apart along the first direction. The counter assembly (3) is provided on the other of the first support member (1) and the second support member (2) for detecting the number of protrusions (2A) passing through the counter assembly (3) during the relative movement of the first support member (1) and the second support member (2).

2. The strut structure according to claim 1, characterized in that, A groove is formed between any two adjacent protrusions (2A); The counter assembly (3) includes a fixing member (31), a counter body (32), and a moving member (33). The fixing member (31) is disposed on the other of the first support member (1) and the second support member (2). The counter body (32) is connected to the fixing member (31). The moving member (33) is movably connected to the fixing member (31) along a second direction, which is perpendicular to the first direction. During the relative movement of the first support member (1) and the second support member (2), the moving member (33) contacts the protrusion (2A) and the groove in sequence. When the moving member (33) contacts the protrusion (2A), the moving member (33) contacts the counter body (32) to complete one count. When the moving member (33) contacts the groove, the moving member (33) separates from the counter.

3. The strut structure according to claim 2, characterized in that, The movable member (33) includes a movable rod (332) and a ball head (331) connected to the movable rod (332). The movable rod (332) is movably connected to the fixed member (31) along the second direction. During the relative movement of the first support member (1) and the second support member (2), the ball head (331) moves sequentially in the protrusion (2A) and the groove to drive the movable rod (332) to move along the second direction. When the ball head (331) is located on the protrusion (2A), the moving rod (332) contacts the counter body (32) to complete one count. When the ball head (331) is located in the groove, the moving rod (332) separates from the counter.

4. The strut structure according to claim 3, characterized in that, The strut structure also includes a first elastic element (4), which is located between the ball head (331) and the fixing element (31). When the ball head (331) is located on the protrusion (2A), the first elastic element (4) undergoes elastic deformation. And / or, the strut structure further includes a locking structure that cooperates with the movable member (33) to lock the movable member (33) when the ball head (331) is located in the groove, so as to lock the first support member (1) and the second support member (2).

5. The strut structure according to any one of claims 1-4, characterized in that, It also includes a second elastic element (6), which is disposed between the first support element (1) and the second support element (2). When the length of the strut structure along the first direction becomes shorter, the second elastic element (6) undergoes elastic deformation.

6. The strut structure according to claim 5, characterized in that, The first support member (1) is provided with a receiving cavity (11) and an opening (12) communicating with the receiving cavity (11). The second support member (2) passes through the opening (12), and a portion of the second support member (2) is located in the receiving cavity (11). The second elastic member (6) is provided in the receiving cavity (11) and is arranged around the second support member (2).

7. The strut structure according to claim 6, characterized in that, The second support member (2) includes a support member body (21) and a sliding block (22). The sliding block (22) is connected to the support member body (21) and is arranged around the support member body (21). The sliding block (22) is located in the receiving cavity (11) and is in sealed contact with the inner wall surface of the receiving cavity (11). The sliding block (22) divides the accommodating cavity (11) into a first cavity (111) and a second cavity (112) arranged sequentially along the opening (12) pointing to the accommodating cavity (11), and the second elastic member (6) is disposed in the second cavity (112); The strut structure also includes a damping pipe (7), which is connected to the first cavity (111) and is adapted to be connected to an external oil supply device for introducing oil into the first cavity (111).

8. A vehicle, characterized in that, The device includes a vehicle body (10), a tailgate (20), and a strut structure as described in any one of claims 1-7, the strut structure being connected between the vehicle body (10) and the tailgate (20) for pushing the tailgate (20) to open or close.

9. The vehicle according to claim 8, characterized in that, The rear door (20) includes a first door body (201) and a second door body (202). The first door body (201) is located on the upper side of the second door body (202) and can be connected or disconnected from the second door body (202). The strut structure includes a first strut structure (301) and a second strut structure (302). Both the first strut structure (301) and the second strut structure (302) are rotatably connected to the vehicle body (10). The first strut structure (301) can be connected to or disconnected from the first door (201), and the second strut structure (302) can be connected to or disconnected from the second door (202). The rear door (20) includes a first state, a second state, and a third state. When the rear door (20) is in the first state, the first door body (201) is connected to the second door body (202), and the first door body (201) is connected to the first support rod structure (301). The second door body (202) is disconnected from the second support rod structure (302), so that the first door body (201) and the second door body (202) can rotate upward. When the rear door (20) is in the second state, the first door body (201) is connected to the second door body (202), and the second door body (202) is connected to the second support structure (302). The first door body (201) is disconnected from the first support structure (301) so that the first door body (201) and the second door body (202) rotate downward. When the rear door (20) is in the third state, the first door body (201) is disconnected from the second door body (202), and the first door body (201) is connected to the first support rod structure (301), and the second door body (202) is connected to the second support rod structure (302), so that the first door body (201) rotates upward and the second door body (202) rotates downward.

10. The vehicle according to claim 9, characterized in that, The vehicle body (10) includes a vehicle body (101) and a telescopic device (102) connected to the vehicle body (101). The first strut structure (301) is connected to the telescopic device (102), and the telescopic device (102) is used to drive the first strut structure (301) to move along the length direction of the vehicle. And / or, the vehicle body (10) includes a vehicle body (101) and a guide rail structure (103) connected to the vehicle body (101), wherein the second strut structure (302) is slidably connected to the guide rail structure (103) along the height direction of the vehicle.

11. The vehicle according to claim 9, characterized in that, The vehicle body (10) includes a vehicle body (101) and a rotating shaft (104) rotatably connected to the vehicle body (101). The rotating shaft (104) is located at one end of the vehicle body (101) in the width direction of the vehicle, and the rotation axis of the rotating shaft (104) is consistent with the length direction of the vehicle. The rotating shaft (104) can be connected to or disconnected from the second door (202). The tailgate (20) also includes a fourth state. When the tailgate (20) is in the fourth state, the tailgate (20) is open, and the second door body (202) is connected to the pivot (104). The second door body (202) is disconnected from the second strut structure (302). At least a portion of the second door body (202) is located on one side of the vehicle body (101) in the width direction of the vehicle.

12. The vehicle according to claim 9, characterized in that, The rear door (20) also includes a support leg structure (203), which is rotatably connected to at least one side of the second door body (202) along the thickness direction of the second door body (202).

13. A method for controlling a vehicle, characterized in that, For a vehicle according to any one of claims 8-12, the control method comprises: If the rear door (20) needs to be switched to the first state, the first door body (201) is connected to the second door body (202), the first door body (201) is connected to the first support structure (301), and the second door body (202) is disconnected from the second support structure (302), so that the first door body (201) and the second door body (202) rotate upward as a whole; If the rear door (20) needs to be switched to the second state, the first door body (201) is connected to the second door body (202), the second door body (202) is connected to the second support structure (302), and the first door body (201) is disconnected from the first support structure (301), so that the first door body (201) and the second door body (202) rotate downward as a whole; If the rear door (20) needs to be switched to the third state, the first door body (201) and the second door body (202) are disconnected, the first door body (201) is connected to the first support structure (301), and the second door body (202) is connected to the second support structure (302), so that the first door body (201) rotates upward and the second door body (202) rotates downward.

14. The control method according to claim 13, characterized in that, Also includes: When the tailgate (20) is switched to the second or third state, if the tailgate (20) needs to be switched to the fourth state, the second door body (202) is connected to the pivot (104), the second door body (202) is disconnected from the second strut structure (302), and the second door body (202) rotates around the pivot (104) so ​​that at least a portion of the second door body (202) is located on one side of the vehicle body (101) in the width direction of the vehicle.

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