Multi-section type electric tail gate, control method and vehicle

Abstract

The invention provides a multi-section type electric tail door, a control method and a vehicle, the multi-section type electric tail door comprises a lower tail door assembly, the lower tail door assembly is provided with a lower tail door plate, the lower tail door assembly is connected with a vehicle body, and at least part of the lower tail door assembly and the vehicle body are movably arranged; the upper tail door assembly is located above the lower tail door assembly, the upper tail door assembly comprises a top tail door module and a side tail door module, the top tail door module is provided with a top door plate, the top tail door module is located at the top of the vehicle body and connected with the vehicle body, and at least part of the top tail door module and the vehicle body are movably arranged; the side tail door module is provided with a side door plate, the side tail door module is connected with the top tail door module, at least part of the side tail door module is movably arranged relative to the side tail door module, and the side tail door module is detachably connected with the vehicle body. The technical problem that a top tail gate and a side tail gate of a traditional electric tail gate cannot be independently and movably adjusted is solved.

Description

Technical Field

[0001] This invention relates to the field of vehicle tailgate technology, and more specifically, to a multi-stage electric tailgate, a control method, and a vehicle. Background Technology

[0002] Traditional electric tailgates are mostly single-section or two-section structures with limited opening and closing options. The top and side tailgates are often fixed as one piece, making it impossible to independently adjust or detach the top and side tailgates. This restricts the flexibility of the space on the top and sides of the vehicle and limits the tailgate's opening shape, making it difficult to meet the diverse needs of different usage scenarios.

[0003] There is currently no effective solution to the above problems. Summary of the Invention

[0004] The main objective of this invention is to provide a multi-section electric tailgate, a control method, and a vehicle to solve the technical problems of traditional electric tailgates, such as simple structure, inability to independently adjust the top and side tailgates, non-detachable side tailgates, fixed unfolding shape, and limited expansion of space on the top and sides of the vehicle body.

[0005] To achieve the above objectives, according to one aspect of the present invention, a multi-section electric tailgate is provided, comprising: a lower tailgate assembly having a lower tailgate panel, the lower tailgate assembly being connected to a vehicle body, and at least a portion of the lower tailgate assembly being movably disposed from the vehicle body to allow the lower tailgate panel to have a first unfolded position and a first retracted position; and an upper tailgate assembly located above the lower tailgate assembly, the upper tailgate assembly including a top tailgate module and a side tailgate module, the top tailgate module having a top panel, the top tailgate module being located on the top of the vehicle body, the top tailgate module being connected to the vehicle body, and at least a portion of the top tailgate module being movably disposed from the vehicle body to the vehicle body. The top door panel is movably disposed relative to the vehicle body, such that the top door panel has at least one top door panel unfolded position and a second retracted position. The side tailgate module has a side door panel and is connected to the top tailgate module. At least a portion of the side tailgate module is movably disposed relative to the vehicle body. The side tailgate module is detachably connected to the vehicle body, such that the side door panel has at least one side door panel unfolded position and a third retracted position. When the top door panel is in the second retracted position, the side door panel is in the third retracted position. When the top door panel is in one of the top door panel unfolded positions, at least a portion of the side door panel is located above the vehicle body.

[0006] Furthermore, the lower tailgate assembly also includes: a first drive module, the first drive module being located inside the vehicle body, the fixed end of the first drive module being movably connected to the vehicle body, and the execution end of the first drive module being movably connected to the lower tailgate panel; wherein, controlling the execution end of the first drive module can cause the lower tailgate panel to be in a first unfolded position and a first retracted position.

[0007] Furthermore, when the top door panel is in the second storage position, the outer side of the top door panel is flush with the top of the vehicle body.

[0008] Furthermore, the top tailgate module also includes: a second drive module, the second drive module is located inside the vehicle body, the fixed end of the second drive module is movably connected to the vehicle body, and the execution end of the second drive module is movably connected to the top door panel; wherein, controlling the execution end of the second drive module can cause the top door panel to be in at least one top door panel unfolded position or a second retracted position.

[0009] Furthermore, the top tailgate module also includes: a second drive module, the second drive module is located inside the vehicle body, the fixed end of the second drive module is movably connected to the vehicle body, and the execution end of the second drive module is movably connected to the top door panel; wherein, controlling the execution end of the second drive module can cause the top door panel to be in at least one top door panel unfolded position or a second retracted position.

[0010] Furthermore, one end of the lower tailgate panel is movably connected to the top of the vehicle body, one end of the side door panel is movably connected to the other end of the lower tailgate panel, the lower tailgate panel is movably connected to the rear end of the vehicle body, and when the side door panel is in the third storage position and the lower tailgate panel is in the first storage position, the other end of the side door panel abuts against the other end of the lower tailgate panel.

[0011] Furthermore, the multi-section electric tailgate also includes an obstacle detection module, which comprises two obstacle detection units. The two obstacle detection units are respectively configured to correspond one-to-one with the lower tailgate assembly and the upper tailgate assembly. One of the two obstacle detection units is connected to the lower tailgate panel, and the other obstacle detection unit is connected to the top door panel or the side door panel. Either of the two obstacle detection units is used to collect information about objects around the vehicle.

[0012] According to another aspect of the present invention, a vehicle is provided, including a multi-section electric tailgate, wherein the multi-section electric tailgate is the aforementioned multi-section electric tailgate.

[0013] According to another aspect of the present invention, a control method for a multi-stage electric tailgate is provided. The control method is used to control the aforementioned multi-stage electric tailgate. The control method includes: in response to the vehicle entering an engine-stopped state, acquiring an electric tailgate opening mode, wherein the electric tailgate opening mode includes at least: a loading mode, a leisure mode, and a camping mode; in response to the electric tailgate opening mode, generating a control instruction set, the control instruction set being used to control the lower tailgate panel, the top door panel, and the side door panels to be located at target positions corresponding to the electric tailgate opening mode.

[0014] Furthermore, in response to the power tailgate opening mode, a control command set is generated, including: in response to the power tailgate opening mode being a loading mode, a first control command set is generated, wherein the first control command set is: controlling the lower tailgate panel to be in the first unfolded position, controlling the top door panel to be in the first top door panel unfolded position, and the side door panels to be in the first side door panel unfolded position; in response to the power tailgate opening mode being a leisure mode, a second control command set is generated, wherein the first control command set is: controlling the lower tailgate panel to be in the first unfolded position, controlling the top door panel to be in the second side door panel unfolded position, and the side door panels to be in the second side door panel unfolded position; in response to the power tailgate opening mode being a camping mode, a third control command set is generated, wherein the first control command set is: controlling the lower tailgate panel to be in the first unfolded position, controlling the top door panel to be in the third side door panel unfolded position, and the side door panels to be in the third side door panel unfolded position.

[0015] By applying the technical solution of this invention, and by setting up a movable lower tailgate assembly, a movable top tailgate module, and a detachable and movable side tailgate module, the independent storage and unfolding adjustment of the top and side tailgate panels are realized. When the top tailgate panel is unfolded, it can drive the side tailgate panel to the top of the vehicle body. In conjunction with the position switching of the lower tailgate assembly, the unfolding form of the tailgate is enriched, the space on the top and sides of the vehicle body is flexibly expanded, and diverse usage needs are met. This solves the technical problems of traditional electric tailgates, such as a single structure, the inability of the top and side tailgates to be independently adjustable, the non-detachable side tailgate, a fixed unfolding form, and limited expansion of the space on the top and sides of the vehicle body. Attached Figure Description

[0016] The accompanying drawings, which form part of this application, are used to provide a further understanding of the invention. The illustrative embodiments of the invention and their descriptions are used to explain the invention and do not constitute an undue limitation of the invention. In the drawings:

[0017] Figure 1 A schematic diagram of the structure of the first embodiment of the multi-section electric tailgate of the present invention;

[0018] Figure 2 A schematic diagram of the structure of the second embodiment of the multi-section electric tailgate of the present invention;

[0019] Figure 3 A schematic diagram of the structure of the third embodiment of the multi-section electric tailgate of the present invention;

[0020] Figure 4 A schematic diagram of the structure of the fourth embodiment of the multi-section electric tailgate of the present invention;

[0021] Figure 5 A schematic diagram of the fifth embodiment of the multi-section electric tailgate described in this invention.

[0022] The above figures include the following reference numerals:

[0023] 10. Upper tailgate assembly;

[0024] 101. Top tailgate module;

[0025] 102. Side tailgate module;

[0026] 20. Lower tailgate assembly;

[0027] 30. Vehicle body. Detailed Implementation

[0028] It should be noted that, unless otherwise specified, the embodiments and features described in this application can be combined with each other. The present invention will now be described in detail with reference to the accompanying drawings and embodiments.

[0029] It should be noted that the terminology used herein is for the purpose of describing particular embodiments only and is not intended to limit the exemplary embodiments according to this application. As used herein, the singular form is intended to include the plural form as well, unless the context clearly indicates otherwise. Furthermore, it should be understood that when the terms "comprising" and / or "including" are used in this specification, they indicate the presence of features, steps, operations, devices, components, and / or combinations thereof.

[0030] It should be noted that the terms "first," "second," etc., in the specification, claims, and accompanying drawings of this application are used to distinguish similar objects and are not necessarily used to describe a specific order or sequence. It should be understood that such terms can be used interchangeably where appropriate so that the embodiments of this application described herein can be implemented, for example, in orders other than those illustrated or described herein. Furthermore, the terms "comprising" and "having," and any variations thereof, are intended to cover a non-exclusive inclusion; for example, a process, method, system, product, or apparatus that comprises a series of steps or units is not necessarily limited to those steps or units explicitly listed, but may include other steps or units not explicitly listed or inherent to such processes, methods, products, or apparatus.

[0031] Exemplary embodiments according to this application will now be described in more detail with reference to the accompanying drawings. However, these exemplary embodiments may be implemented in many different forms and should not be construed as being limited to the embodiments set forth herein. It should be understood that these embodiments are provided so that the disclosure of this application is thorough and complete, and that the concept of these exemplary embodiments is fully conveyed to those skilled in the art. In the drawings, for clarity, the thickness of layers and regions may be exaggerated, and the same reference numerals are used to denote the same devices, and therefore their description will be omitted.

[0032] Traditional electric tailgates generally employ a single-section, integrated structure or a conventional two-section spliced ​​structure. Their opening and closing movements are relatively limited, only allowing for standard full-body or segmented flipping. Furthermore, the top and side tailgates of these tailgates are mostly fixed as a single unit, lacking independent adjustment or detachable connection. This restricts the flexibility of expanding the roof and side space to suit various needs. Limited by this fixed structure, the tailgate's opening shape and range are significantly constrained, adapting only to a single usage scenario and failing to meet diverse user needs for loading irregularly shaped large items or expanding roof space.

[0033] This application provides an embodiment of a multi-section electric tailgate, such as... Figure 1 and Figure 2 As shown, it includes: a lower tailgate assembly 20, which has a lower tailgate panel and is connected to the vehicle body 30. At least a portion of the lower tailgate assembly 20 is movably disposed with the vehicle body 30 to allow the lower tailgate panel to have a first unfolded position and a first retracted position; and an upper tailgate assembly 10, which is located above the lower tailgate assembly 20 and includes a top tailgate module 101 and a side tailgate module 102. The top tailgate module 101 has a top panel and is located on top of the vehicle body 30. The top tailgate module 101 is connected to the vehicle body 30, and at least a portion of the top tailgate module 101 is movably disposed with the vehicle body 30. The top door panel is movably configured to have at least one top door panel unfolded position and a second retracted position. The side tailgate module 102 has a side door panel and is connected to the top tailgate module 101. At least a portion of the side tailgate module 102 is movably configured relative to the vehicle body 30. The side tailgate module 102 is detachably connected to the vehicle body 30 so that the side door panel has at least one side door panel unfolded position and a third retracted position. When the top door panel is in the second retracted position, the side door panel is in the third retracted position. When the top door panel is in one of the top door panel unfolded positions, at least a portion of the side door panel is located above the vehicle body 30.

[0034] By applying the technical solution of this invention, through the setting of a movable lower tailgate assembly 20, a movable top tailgate module 101, and a detachable and movable side tailgate module 102, the independent storage and unfolding adjustment of the top door panel and the side door panel are realized. When the top door panel is unfolded, it can drive the side door panel to be located above the vehicle body 30. With the position switching of the lower tailgate assembly 20, the unfolding form of the tailgate is enriched, the space on the top and sides of the vehicle body 30 is flexibly expanded, and the diverse usage needs are met. This solves the technical problems of traditional electric tailgates, such as a single structure, the inability of the top and side tailgates to be independently movable and adjustable, the inability of the side tailgates to be detachable and connected, a fixed unfolding form, and limited expansion of the space on the top and sides of the vehicle body 30.

[0035] Furthermore, the lower tailgate assembly 20 also includes: a first drive module, the first drive module is located inside the body 30, the fixed end of the first drive module is movably connected to the body 30, and the execution end of the first drive module is movably connected to the lower tailgate panel; wherein, controlling the execution end of the first drive module can cause the lower tailgate panel to be in a first unfolded position and a first retracted position.

[0036] In this embodiment, by controlling the module's execution end, the lower tailgate panel can be stably driven to flexibly switch between the first unfolded position and the first retracted position, thereby realizing the automated opening and closing control of the lower tailgate assembly 20. This not only improves the convenience and accuracy of the lower tailgate opening and closing operation, but also makes the lower tailgate position adjustment more stable and reliable. At the same time, the built-in drive arrangement also optimizes the internal space layout of the vehicle body 30, ensuring the compactness of the overall tailgate structure.

[0037] Specifically, when the top door panel is in the second retracted position, the outer side of the top door panel is flush with the top of the vehicle body 30. This makes the tailgate look neat and integrated when closed, and keeps it flush with the top of the vehicle body 30, effectively improving the overall aesthetics and aerodynamic performance of the rear of the vehicle, reducing wind resistance, and avoiding the risk of bumps and knocks caused by the protruding structure. It also makes the fit between the tailgate and the vehicle body 30 more compact and coordinated when the tailgate is retracted.

[0038] In this embodiment, the top tailgate module 101 further includes a second drive module located inside the vehicle body 30. The fixed end of the second drive module is movably connected to the vehicle body 30, and the execution end of the second drive module is movably connected to the top door panel. Controlling the execution end of the second drive module allows the top door panel to be positioned in at least one unfolded position or a second retracted position. This enables flexible switching of the top door panel between at least one unfolded position and a second retracted position, achieving automated opening and closing adjustment of the top tailgate module 101. This improves the convenience and accuracy of top door panel position control. The built-in arrangement optimizes the internal space of the vehicle body 30, ensuring that the top tailgate module 101 has a compact structure and stable and reliable operation.

[0039] Furthermore, the top tailgate module 101 also includes: a second drive module, the second drive module is located inside the body 30, the fixed end of the second drive module is movably connected to the body 30, and the execution end of the second drive module is movably connected to the top door panel; wherein, controlling the execution end of the second drive module can cause the top door panel to be in at least one top door panel unfolded position or a second storage position.

[0040] In this embodiment, the second drive module is arranged inside the vehicle body 30. Its fixed end is movably connected to the vehicle body 30, and its execution end is movably connected to the top door panel. By controlling the action of the execution end of the second drive module, the top door panel can be flexibly driven to switch between at least one top door panel unfolded position and a second storage position, realizing multi-level automatic adjustment of the top tailgate module 101. This not only improves the ease of operation and positional accuracy of opening and closing the top door panel, but also optimizes the internal space layout of the vehicle body 30 through the built-in installation form, ensuring that the top tailgate module 101 has a compact structure and operates smoothly and reliably.

[0041] Specifically, one end of the lower tailgate panel is movably connected to the top of the vehicle body 30, one end of the side door panel is movably connected to the other end of the lower tailgate panel, and the lower tailgate panel is movably connected to the rear end of the vehicle body 30. When the side door panel is in the third storage position and the lower tailgate panel is in the first storage position, the other end of the side door panel abuts against the other end of the lower tailgate panel. This ensures that all tailgate components are tightly connected and move smoothly together. In the storage state, the entire structure fits snugly and neatly without any excess gaps, which not only improves the integrity and sealing of the tailgate after it is closed, but also ensures the stability and smoothness of the tailgate's opening and closing movements.

[0042] In an exemplary embodiment, the multi-section electric tailgate further includes an obstacle detection module, which includes two obstacle detection units. The two obstacle detection units are respectively configured to correspond one-to-one with the lower tailgate assembly 20 and the upper tailgate assembly 10. One of the two obstacle detection units is connected to the lower tailgate panel, and the other obstacle detection unit is connected to the top door panel or the side door panel. Either of the two obstacle detection units is used to collect information about objects around the vehicle.

[0043] This embodiment sets up obstacle detection modules corresponding to the lower tailgate assembly 20 and the upper tailgate assembly 10 respectively. One obstacle detection unit is installed on the lower tailgate panel, and the other obstacle detection unit is installed on the top door panel or side door panel. By using the two obstacle detection units to independently collect information about objects around the vehicle, the movement areas of the lower tailgate assembly 20 and the upper tailgate assembly 10 can be zoned and comprehensively monitored for obstacles. This effectively avoids collisions during the opening or closing of the tailgate, greatly improving the safety and reliability of tailgate operation. At the same time, it adapts to the structural characteristics of multi-section tailgates, making safety protection more targeted.

[0044] According to another specific embodiment of this application, a vehicle is also provided, including a multi-section electric tailgate, wherein the multi-section electric tailgate is the aforementioned multi-section electric tailgate.

[0045] By applying the technical solution of the present invention, the vehicle adopts the aforementioned multi-section electric tailgate, relying on the adjustable lower tailgate assembly 20, the top tailgate module 101, and the detachable side tailgate module 102 structure, in conjunction with the corresponding drive module and obstacle detection module, it can flexibly expand the top and side space of the vehicle body 30, realize the transformation of the tailgate into various opening forms, and at the same time ensure the stability and safety of the tailgate opening and closing operation, effectively improving the vehicle's space practicality, ease of use, and scene adaptability, and meeting the diverse needs of users.

[0046] According to another specific embodiment of this application, a control method for a multi-stage electric tailgate is also provided. The control method is used to control the aforementioned multi-stage electric tailgate, and the control method includes:

[0047] Step S1: In response to the vehicle entering the engine stop state, obtain the electric tailgate opening mode;

[0048] In step S1, with the vehicle engine stopped as the core prerequisite, the core completes the identification and acquisition of the electric tailgate opening mode, providing a precise execution basis for the subsequent phased opening and timing linkage control of the tailgate. The specific execution process is as follows:

[0049] The tailgate control unit maintains real-time signal linkage with the vehicle control system, continuously collecting vehicle operating status signals such as engine running status and vehicle parking status (electronic parking / handbrake engagement status, whether the gear is engaged in P gear). When the control unit recognizes that the vehicle has entered an engine-stopped state, and the vehicle meets the parking safety opening conditions and the vehicle body is in a stable and stationary state, it will immediately trigger this step to start the electric tailgate opening mode acquisition process. If the vehicle parking safety conditions are not met, the control unit will refuse to execute the mode acquisition operation and display a "Tailgate opening conditions not met" prompt message on the vehicle's central control screen.

[0050] The electric tailgate opening modes available in this step include at least loading mode, leisure mode, and camping mode. All three modes are based on a composite structure design of a two-section upper tailgate and a segmented upper and lower tailgate. They are developed based on the hardware drive of three independent double-piston rod electric struts and multi-stage hinge components. Each mode corresponds to a different tailgate opening form, which can be adapted to the different usage scenarios of users, thus breaking through the functional limitations of traditional electric tailgates with only a single opening form.

[0051] This process supports three interaction methods for selecting and obtaining the activation mode. All user operation commands are converted into electrical signals and transmitted to the tailgate control unit in real time: First, central control triggering, where users can directly select loading, leisure, or camping mode on the dedicated tailgate control interface of the vehicle's central control screen; second, physical button triggering, where users can switch and select modes through the vehicle's dedicated physical button on the tailgate, shortcut buttons on the steering wheel, or function buttons on the vehicle's central control panel; and third, voice command triggering, where users can issue voice commands such as "activate loading mode" or "activate camping mode" through the vehicle's voice interaction system, and the control unit will complete voice recognition and mode determination.

[0052] After receiving the user's mode selection command, the tailgate control unit will first complete two pre-tests. Only after both tests pass will the mode acquisition process be officially completed: First, the obstacle detection module performs an initial environmental test along the entire tailgate opening path to confirm that there are no obstacles around the tailgate and that the distance to objects does not exceed the preset safety threshold. Second, the control unit performs a status self-test on the tailgate drive and transmission components, including the three sets of electric struts, multi-stage hinge assemblies, and limit switches, to confirm that each component is fault-free and in normal working condition. If any test fails, the control unit will immediately terminate the mode acquisition process and display the corresponding abnormal prompt on the central control screen, such as "Obstacles around the tailgate" or "Tailgate drive component malfunction."

[0053] After all the pre-detection checks pass, the control unit parses and verifies the user-selected mode command. Once the command is confirmed to be valid, the power tailgate opening mode is officially acquired. Simultaneously, the vehicle's central control screen displays the selected opening mode in real time, such as "Loading mode acquired," and provides a 1-2 second mode confirmation prompt, allowing the user to intuitively understand the mode selection result. At the same time, the control unit accurately retrieves the tailgate unfolding timing logic for the corresponding opening mode from the pre-stored program library, including the activation sequence of each electric strut, the unfolding angle and position of each tailgate segment, the trigger threshold of the limit switch, and other key parameters, preparing complete data and programs for the subsequent segmented tailgate unfolding operation.

[0054] The three opening modes each have their own core design focus: the loading mode aims to maximize the expansion of the trunk loading channel and reduce the outward protrusion distance after the tailgate is opened; the leisure mode aims to enable the lower tailgate to open horizontally, forming a load-bearing work platform or temporary seat; and the camping mode aims to enable the upper tailgate to lift 90° in the first stage and open horizontally in the second stage, forming a high-roof sheltered space with the rear of the vehicle, and to cooperate with the horizontal opening of the lower tailgate. The timing logic of the three modes is independent of each other, ensuring that the tailgate opening shape is accurately matched with the user's actual usage scenario.

[0055] Step S2: In response to the electric tailgate opening mode, generate a control command set;

[0056] In step S2, which is a key link connecting pattern recognition and door panel action execution in the multi-segment electric tailgate control process, the core revolves around generating a dedicated control command set in response to the identified electric tailgate opening mode. The generated control command set serves as a direct drive signal to precisely control the lower tailgate panel, top door panel, and side door panels, enabling them to move synchronously and position themselves to the target position that matches the selected electric tailgate opening mode, ensuring that the unfolding shape of each door panel is highly compatible with the usage requirements of the electric tailgate opening mode.

[0057] After accurately identifying and confirming the power tailgate opening mode, the tailgate control unit will immediately start the built-in instruction set generation program. Based on the pre-stored matching logic between the power tailgate opening mode and the target position of each door panel, it will automatically generate the corresponding standardized control instruction set. The instruction set includes key execution parameters such as the start signal, action stroke, and limit trigger threshold of the corresponding drive module of each door panel. It can be directly sent to the drive modules of the lower tailgate panel, top door panel, and side door panels to guide each module to complete the coordinated action and ensure that each door panel can accurately reach the designated position.

[0058] When the tailgate control unit responds to the message that the power tailgate opening mode is loading mode, such as Figure 3 As shown, the first control instruction set in the control instruction set will be directly generated. This instruction set is designed to meet the usage requirements of the loading scenario and clearly issues action control instructions: control the lower tailgate panel to unfold and position it to the first unfolded position, control the top door panel to unfold and position it to the first top door panel unfolded position, and simultaneously control the side door panels to unfold and position them to the first side door panel unfolded position. Through the coordinated unfolding of the three doors, a spatial form that adapts to the loading requirements is formed.

[0059] When the tailgate control unit responds to the message that the power tailgate opening mode is in leisure mode, such as Figure 4 As shown, a second set of control instructions is also generated in the control instruction set. This set of instructions sets the action logic based on the usage requirements of the leisure scenario. It clearly controls the lower tailgate panel to remain in the first unfolded position, while controlling the top door panel to unfold and position itself to the second side door panel unfolded position, and the side door panel to unfold and position itself to the second side door panel unfolded position. Through the specific unfolding and positioning of the top and side door panels, combined with the unfolded state of the lower tailgate panel, a tailgate space suitable for leisure use is formed.

[0060] When the tailgate control unit responds to the message that the power tailgate opening mode is camping mode, such as Figure 5As shown, a third set of control instructions will be generated for the corresponding camping scenario. This set of instructions will formulate action instructions based on the spatial requirements of the camping scenario. It will clearly control the lower tailgate panel to remain in the first unfolded position, while controlling the top door panel to unfold and be positioned to the third side door panel unfolded position, and the side door panel to unfold and be positioned to the third side door panel unfolded position. By using the large-angle unfolding and positioning of the top and side door panels, combined with the unfolded state of the lower tailgate panel, a sheltered and operational space that meets the needs of camping is formed.

[0061] In addition, after generating the control command set corresponding to each mode, the control unit will immediately perform self-check and verification of the command parameters to confirm that there are no errors in the action parameters of each door panel in the command and no conflicts in the drive signals. The control command set that passes the verification will enter the waiting state to be issued, making full preparations for the subsequent drive module to execute actions and drive each door panel to switch positions, thus ensuring the accuracy and coordination of each door panel's actions from the command level.

[0062] In this embodiment, in response to the electric tailgate opening mode, a control command set is generated, including: in response to the electric tailgate opening mode being a loading mode, a first control command set is generated in the control command set, the first control command set being: controlling the lower tailgate panel to be in a first unfolded position, controlling the top door panel to be in a first top door panel unfolded position, and the side door panels to be in a first side door panel unfolded position; in response to the electric tailgate opening mode being a leisure mode, a first control command set is generated in the control command set, the first control command set being: controlling the lower tailgate panel to be in a first unfolded position, controlling the top door panel to be in a second side door panel unfolded position, and the side door panels to be in a second side door panel unfolded position; in response to the electric tailgate opening mode being a camping mode, a first control command set is generated in the control command set, the first control command set being: controlling the lower tailgate panel to be in a first unfolded position, controlling the top door panel to be in a third side door panel unfolded position, and the side door panels to be in a third side door panel unfolded position.

[0063] This embodiment generates corresponding control command sets based on different electric tailgate opening modes such as loading, leisure, and camping. The lower tailgate panel remains in the first unfolded position, while the top and side panels are precisely positioned to their respective unfolded positions for each mode. Through the precise matching design between the mode and the unfolded position of the door panels, the spatial form of the electric tailgate can meet the actual needs of different usage scenarios. At the same time, the command set can directly drive the precise movements of each door panel and coordinate them, realizing the automatic switching of the tailgate form in different modes. It is easy to operate and has strong spatial adaptability, effectively meeting the diverse vehicle needs of users such as loading, outdoor leisure, and camping.

[0064] For ease of description, spatial relative terms such as "above," "on top of," "on the upper surface of," "above," etc., are used herein to describe the spatial positional relationship of a device or feature as shown in the figures to other devices or features. It should be understood that spatial relative terms are intended to encompass different orientations in use or operation beyond the orientation of the device as described in the figures. For example, if the device in the figures were inverted, a device described as "above" or "on top of" other devices or structures would subsequently be positioned as "below" or "under" other devices or structures. Thus, the exemplary term "above" can include both "above" and "below." The device may also be positioned in other different ways (rotated 90 degrees or in other orientations), and the spatial relative descriptions used herein will be interpreted accordingly.

[0065] In addition to the above, it should be noted that the terms "one embodiment," "another embodiment," and "embodiment" used in this specification refer to specific features, structures, or characteristics described in connection with that embodiment, which are included in at least one embodiment described in the general description of this application. The appearance of the same expression in multiple places in the specification does not necessarily refer to the same embodiment. Furthermore, when a specific feature, structure, or characteristic is described in connection with any embodiment, the intention is to suggest that implementing such a feature, structure, or characteristic in conjunction with other embodiments also falls within the scope of this invention.

[0066] In the above embodiments, the descriptions of each embodiment have different focuses. For parts not described in detail in a certain embodiment, please refer to the relevant descriptions in other embodiments.

[0067] The above description is merely a preferred embodiment of the present invention and is not intended to limit the invention. Various modifications and variations can be made to the present invention by those skilled in the art. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present invention should be included within the scope of protection of the present invention.

Claims

1. A multi-section electric tailgate, characterized in that, include: The lower tailgate assembly (20) has a lower tailgate panel and is connected to the vehicle body (30). At least a portion of the lower tailgate assembly (20) is movably disposed from the vehicle body (30) so that the lower tailgate panel has a first unfolded position and a first retracted position. An upper tailgate assembly (10) is located above the lower tailgate assembly (20). The upper tailgate assembly (10) includes a top tailgate module (101) and a side tailgate module (102). The top tailgate module (101) has a top door panel and is located on top of the vehicle body (30). The top tailgate module (101) is connected to the vehicle body (30), and at least a portion of the top tailgate module (101) is movably connected to the vehicle body (30). The top door panel is configured to have at least one top door panel unfolded position and a second storage position. The side tailgate module (102) has a side door panel. The side tailgate module (102) is connected to the top tailgate module (101). At least a portion of the side tailgate module (102) is movably disposed relative to the vehicle body (30). The side tailgate module (102) is detachably connected to the vehicle body (30) so that the side door panel has at least one side door panel unfolded position and a third storage position. When the top door panel is in the second storage position, the side door panel is in the third storage position. When the top door panel is in one of the top door panel unfolded positions, at least a portion of the side door panel is above the vehicle body (30).

2. The multi-section electric tailgate according to claim 1, characterized in that, The lower tailgate assembly (20) also includes: The first drive module is located inside the body (30), the fixed end of the first drive module is movably connected to the body (30), and the execution end of the first drive module is movably connected to the lower tailgate panel. Specifically, the actuator that controls the first drive module can position the lower tailgate panel in the first unfolded position and the first retracted position.

3. The multi-section electric tailgate according to claim 1 or 2, characterized in that, When the top door panel is in the second storage position, the outer side of the top door panel is flush with the top of the vehicle body (30).

4. The multi-section electric tailgate according to claim 3, characterized in that, The top tailgate module (101) also includes: The second drive module is located inside the body (30), the fixed end of the second drive module is movably connected to the body (30), and the execution end of the second drive module is movably connected to the top door panel; The actuator that controls the second drive module can position the top door panel in at least one unfolded position or the second retracted position.

5. The multi-section electric tailgate according to claim 3, characterized in that, The top tailgate module (101) also includes: The second drive module is located inside the body (30), the fixed end of the second drive module is movably connected to the body (30), and the execution end of the second drive module is movably connected to the top door panel; The actuator that controls the second drive module can position the top door panel in at least one unfolded position or the second retracted position.

6. The multi-section electric tailgate according to claim 1, characterized in that, One end of the lower tailgate panel is movably connected to the top of the vehicle body (30), one end of the side panel is movably connected to the other end of the lower tailgate panel, the lower tailgate panel is movably connected to the rear end of the vehicle body (30), and when the side panel is in the third storage position and the lower tailgate panel is in the first storage position, the other end of the side panel abuts against the other end of the lower tailgate panel.

7. The multi-section electric tailgate according to claim 1, characterized in that, The multi-section electric tailgate also includes: An obstacle detection module includes two obstacle detection units, which are respectively configured to correspond one-to-one with the lower tailgate assembly (20) and the upper tailgate assembly (10). One of the two obstacle detection units is connected to the lower tailgate panel, and the other obstacle detection unit is connected to the top door panel or the side door panel. Either of the two obstacle detection units is used to collect information about objects around the vehicle.

8. A vehicle comprising a multi-section electric tailgate, characterized in that, The multi-section electric tailgate is the multi-section electric tailgate according to any one of claims 1-7.

9. A control method for a multi-stage electric tailgate, the control method being used to control the multi-stage electric tailgate according to any one of claims 1-7, characterized in that, The control method includes: In response to the vehicle entering an engine-stopped state, an electric tailgate opening mode is obtained, wherein the electric tailgate opening mode includes at least: loading mode, leisure mode and camping mode; In response to the electric tailgate opening mode, a set of control instructions is generated, which is used to control the lower tailgate panel, top door panel and side door panels to be located at the target position corresponding to the electric tailgate opening mode.

10. The control method for a multi-segment electric tailgate according to claim 9, characterized in that, In response to the electric tailgate opening mode, the control command set is generated, including: In response to the electric tailgate opening mode being loading mode, a first control instruction set is generated in the control instruction set. The first control instruction set is: controlling the lower tailgate panel to be in the first unfolded position, controlling the top door panel to be in the first top door panel unfolded position, and controlling the side door panel to be in the first side door panel unfolded position. In response to the electric tailgate opening mode being leisure mode, a second control instruction set is generated in the control instruction set. The first control instruction set is: controlling the lower tailgate panel to be in the first unfolded position, controlling the top door panel to be in the second side door panel unfolded position, and the side door panel to be in the second side door panel unfolded position. In response to the electric tailgate opening mode being camping mode, a third control instruction set is generated in the control instruction set. The first control instruction set is: controlling the lower tailgate panel to be in the first unfolded position, controlling the top door panel to be in the third side door panel unfolded position, and the side door panel to be in the third side door panel unfolded position.

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