Door opening method, door closing method, and vehicle having the same

By designing the opening and closing methods for vehicles with double doors, the second door moves along a specific trajectory, solving the problem of vehicles with double doors being unable to open and close in a disorderly manner and improving the user experience.

CN122304586APending Publication Date: 2026-06-30XIAOMI EV TECH CO LTD

Patent Information

Authority / Receiving Office
CN · China
Patent Type
Applications(China)
Current Assignee / Owner
XIAOMI EV TECH CO LTD
Filing Date
2024-12-31
Publication Date
2026-06-30

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  • Figure CN122304586A_ABST
    Figure CN122304586A_ABST
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Abstract

This disclosure relates to an opening method and a closing method for a double-door vehicle, as well as the double-door vehicle itself. The opening method includes: the rotating side of the second door moves outward along a first opening trajectory while the opening side of the second door moves away from the first door in a first direction and moves to a pre-opening position; the second door is then rotated and opened along a second opening trajectory. In this double-door vehicle, neither door interferes with the other when opened, thus enabling disordered opening of the double-door vehicle and improving the user experience.
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Description

Technical Field

[0001] This disclosure relates to the field of vehicle technology, and more specifically, to a method for opening and closing doors of a double-door vehicle, and a double-door vehicle itself. Background Technology

[0002] To provide a larger passenger compartment opening, vehicles with suicide doors typically eliminate the B-pillar structure. However, to ensure the vehicle's airtightness, the front and rear doors are connected using an overlapping sealing method. In this technology, the overlapping area of ​​the front door is located outside the overlapping area of ​​the rear door. This means that the front door must be opened before the rear door can be opened, preventing the unordered opening and closing of doors and affecting the user experience. Summary of the Invention

[0003] The purpose of this disclosure is to provide a method for opening and closing doors of a vehicle with double doors, as well as a vehicle with double doors, so that the doors of the vehicle can be opened in a disordered manner, thereby at least partially solving the above-mentioned technical problems.

[0004] To achieve the above objectives, a first aspect of this disclosure provides a method for opening the doors of a double-door vehicle, the double-door vehicle including a first door and a second door, the rotating side of the first door and the rotating side of the second door being respectively hinged to the vehicle body, and the opening side of the first door and the opening side of the second door engaging with each other, the method comprising: the rotating side of the second door moving outward along a first opening trajectory while the opening side of the second door moving away from the first door in a first direction and moving to a pre-opening position; and rotating the second door along a second opening trajectory to open it.

[0005] Optionally, before the second door moves outward along the first opening trajectory on its rotating side, the first lock between the second door and the vehicle body is unlocked.

[0006] Optionally, during the process of the opening side of the second door moving away from the first door in the first direction and moving a preset distance to the pre-opening position, the rotating side of the second door rotates a first opening angle about the first pivot axis in a direction away from the vehicle body; wherein, the trajectory of the rotating side of the second door rotating the first opening angle about the first pivot axis in a direction away from the vehicle body forms the first opening trajectory; the preset distance is the minimum distance that the second door can move from the initial position in the first direction to avoid the opening side of the first door during the rotation of the second door along the second opening trajectory.

[0007] Optionally, after the opening side of the second door moves away from the first door in the first direction and to the pre-opening position, the second lock between the opening side of the second door and the vehicle body is unlocked.

[0008] Optionally, after the second lock is unlocked, the opening side of the second door body rotates a second opening angle about the first pivot axis in a direction away from the vehicle body; wherein, the trajectory of the opening side of the second door body rotating a second opening angle about the first pivot axis in a direction away from the vehicle body forms the second opening trajectory.

[0009] Optionally, the vehicle body is provided with a locking assembly that can move along the first direction, the locking assembly being used to keep the second door body locked to the vehicle body before it moves along the first direction to a pre-opening position.

[0010] Optionally, the preset distance is 20mm-50mm.

[0011] Optionally, the first door body is opened by rotating its rotating side along the third opening trajectory.

[0012] A second aspect of this disclosure provides a method for closing the doors of a double-door vehicle, the double-door vehicle including a first door and a second door, the rotating side of the first door and the rotating side of the second door being respectively hinged to the vehicle body, and the opening side of the first door being capable of engaging with the opening side of the second door, the closing method including: rotating the opening side of the second door along a first closing trajectory to a pre-closed position, the rotating side of the second door moving along a second closing trajectory to fit against the vehicle body while the opening side of the second door approaches the first door from the pre-closed position in a first direction to close the second door.

[0013] Optionally, after rotating the opening side of the second door body to the pre-closed position along the first closing trajectory, a second lock is engaged between the opening side of the second door body and the vehicle body.

[0014] Optionally, after the second door is closed, a first lock is engaged between the second door and the vehicle body.

[0015] Optionally, before the opening side of the second door moves a preset distance relative to the first door in the first direction from the pre-closed position, the opening side of the second door rotates a first closing angle about a first pivot axis toward the direction of approaching the vehicle body; wherein, the trajectory of the opening side of the second door rotating the first closing angle about the first pivot axis toward the direction of approaching the vehicle body forms the first closing trajectory; the preset distance is the minimum distance that the second door can move from the initial position in the first direction to avoid the opening side of the first door during the rotation of the second door along the second opening trajectory.

[0016] Optionally, during the process of the opening side of the second door moving a preset distance relative to the first door in the first direction from the pre-closed position, the rotating side of the second door rotates a second closing angle about the first pivot axis toward the direction of approaching the vehicle body; wherein, the trajectory of the rotating side of the second door rotating the second closing angle about the first pivot axis toward the direction of approaching the vehicle body forms the second closing trajectory.

[0017] Optionally, the vehicle body is provided with a locking assembly that can move along the first direction, the locking assembly being used to maintain locking with the vehicle body as the second door approaches the first door from the pre-closed position.

[0018] Optionally, the preset distance is 20mm-50mm.

[0019] Optionally, the rotating side of the first door body rotates along the third closing trajectory to close the first door body.

[0020] A third aspect of this disclosure provides a double-door vehicle, comprising: a vehicle body; a first door body, the rotatable side of which is hinged to the vehicle body; a second door body, the rotatable side of which is hinged to the vehicle body, the opening side of which is configured to engage with the opening side of the first door body; a first latch assembly disposed on the vehicle body for detachably engaging with a lock body of the first door body; a second latch assembly disposed on the vehicle body for slidably engaging with the opening side of the second door body in a first direction; a third latch assembly disposed on the vehicle body for detachably engaging with the second door body to lock and unlock the second door body and the vehicle body; and a first hinge assembly disposed on the vehicle body for moving the rotatable side of the second door body away from or towards the vehicle body along a first trajectory, and for rotating the opening side of the second door body about a second trajectory to open or close.

[0021] Optionally, the second latch assembly includes a guide structure and a latch structure detachably connected to the lock body of the second door. The guide structure is disposed on the vehicle body. The latch structure is slidably connected to the guide structure along the first direction to move in a first position and a second position, and remains locked to the opening side of the second door during the movement in the first and second positions. The first hinge assembly includes a first hinge portion connected to the second door body, a second hinge portion connected to the vehicle body, and a connecting arm connecting the first hinge portion and the second hinge portion. The rotating side of the second door body can rotate around the second hinge portion by a first angle to move away from or towards the vehicle body along the first trajectory. The opening side of the second door body can rotate around the second hinge portion by a second angle to rotate open or close along the second trajectory.

[0022] Optionally, while the rotating side of the second door moves away from the vehicle body along the first trajectory, the opening side of the second door moves from the first position toward the second position; while the rotating side of the second door moves closer to the vehicle body along the first trajectory, the opening side of the second door moves from the second position toward the first position; before the opening side of the second door rotates open along the second trajectory, the latch structure unlocks from the opening side of the second door; after the opening side of the second door rotates closed along the second trajectory, the latch structure locks from the opening side of the second door.

[0023] Optionally, the double-door vehicle further includes an adjustable-length balance bar, which is used to smoothly open and close the second door.

[0024] Optionally, two second latching assemblies are provided, and the two second latching assemblies are spaced apart in the height direction of the vehicle body.

[0025] Through the above technical solution, the overlapping area of ​​the two doors of the double-door vehicle disclosed herein can move away from or towards the vehicle body relative to the rotating side of the second door located on the inner side, along the first trajectory. At the same time, the opening side of the second door can move away from or towards the first door in the first direction. Thus, the second door can avoid the first door when opening or closing. In this way, neither door will interfere with the other when it is opened. Based on this, disordered opening of the double-door vehicle is achieved, improving the user experience.

[0026] Other features and advantages of this disclosure will be described in detail in the following detailed description section. Attached Figure Description

[0027] The accompanying drawings are provided to further illustrate the present disclosure and form part of the specification. They are used together with the following detailed description to explain the present disclosure, but do not constitute a limitation thereof. In the drawings: Figure 1 This is a structural schematic diagram of a vehicle with double doors provided in an embodiment of this disclosure; Figure 2 This is a schematic diagram of the locking structure provided in this embodiment when it is in the first position; Figure 3 This is a schematic diagram of the locking structure provided in the embodiment of this disclosure when it is in the second position; Figure 4 This is a schematic diagram of the structure of the first hinge assembly provided in an embodiment of this disclosure; Figure 5 This is a schematic diagram of the structure of the first door and the second door when they are sealed together according to an embodiment of this disclosure; Figure 6 This is a schematic diagram of the positional relationship between the second door and the first door when the second door is openable, and the second opening trajectory / first closing trajectory provided in the embodiments of this disclosure; Figure 7 This is a schematic diagram showing the connection between the first hinge assembly, the second door body, and the vehicle body when the first door body and the second door body are sealed together according to an embodiment of this disclosure. Figure 8 This is a schematic diagram showing the connection between the first hinge assembly and the second door body and the vehicle body when the second door body moves around the first opening trajectory / second closing trajectory according to an embodiment of this disclosure; Figure 9 This is a schematic diagram showing the connection between the first hinge assembly and the second door body and the vehicle body when the second door body moves around the second opening trajectory / first closing trajectory according to an embodiment of this disclosure; Figure 10 This is a schematic diagram of the structure of the first door body connected to the vehicle body and the third opening trajectory / third closing trajectory provided in the embodiments of this disclosure; Figure 11 This is a schematic diagram of the installation position of the first hinge assembly provided in an embodiment of this disclosure; Figure 12 This is a schematic diagram of the second door provided in this embodiment being opened via the first hinge assembly.

[0028] Explanation of reference numerals in the attached figures 1-Vehicle body; 2-First door body; 21-First overlapping area; 3-Second door body; 31-Second overlapping area; 4-First latch assembly; 5-Second latch assembly; 51-Guide structure; 52-Latch structure; 6-First hinge assembly; 61-First hinge part; 611-First hinge seat; 612-First rotating shaft; 62-Second hinge part; 621-Second hinge seat; 622-Second rotating shaft; 63-Connecting arm; 631-First connecting arm; 632-Second connecting arm; 7-Third latch assembly; 8-Second hinge assembly; 81-First hinge; 82-Second hinge; 83-Connecting shaft; 9-Stabilizer bar; 10-Sealing structure; 11-Rear floor inner wheel cover reinforcement plate; L-First pivot axis; A-First direction. Detailed Implementation

[0029] The specific embodiments of this disclosure will be described in detail below with reference to the accompanying drawings. It should be understood that the specific embodiments described herein are for illustration and explanation only and are not intended to limit this disclosure.

[0030] In this disclosure, unless otherwise stated, "inner" and "outer" refer to the inner and outer contours of the first and second doors relative to their respective component outlines after they are connected to the vehicle body; the rotating side of the "first door" and the rotating side of the "second door" refer to the side of the two doors connected to the vehicle body via a hinge assembly; the opening side of the "first door" and the opening side of the "second door" refer to the side opposite to each other in a first direction, i.e., the side where the two doors cooperate with each other; the "initial position" of the second door refers to the position when the second door is in the closed state and engaged with the first door; "first direction" refers to the forward and backward direction of the vehicle during travel. Furthermore, the terms "first," "second," "third," etc., used in this disclosure are for distinguishing one element from another and do not have sequential or importance implications. In addition, in the following description, when referring to the accompanying drawings, unless otherwise explained, the same reference numerals in different drawings denote the same or similar elements. The above definitions are for explanation and illustration only and should not be construed as limiting this disclosure.

[0031] The opening and closing methods of the double-door vehicle and the double-door vehicle in the exemplary embodiments of this disclosure will now be described with reference to the accompanying drawings.

[0032] To more clearly explain the opening and closing method of a vehicle with double doors, the overall structure of the vehicle with double doors will be explained below.

[0033] refer to Figures 1 to 12As shown, in a first aspect, this disclosure provides a double-door vehicle, including a vehicle body 1, a first door body 2, a second door body 3, a first latch assembly 4, a second latch assembly 5, a third latch assembly 7, and a first hinge assembly 6. The rotating side of the first door body 2 is hinged to the vehicle body 1; the rotating side of the second door body 3 is hinged to the vehicle body 1, and the opening side of the second door body 3 is used to engage with the opening side of the first door body 2; the first latch assembly 4 is disposed on the vehicle body 1 and is detachably engaged with the lock body of the first door body 2; the second latch assembly 5 is disposed on the vehicle body 1 and is slidably detachably engaged with the opening side of the second door body 3 in a first direction; the third latch assembly 7 is disposed on the vehicle body 1 and is detachably engaged with the second door body 3 to lock and unlock the second door body 3 and the vehicle body 1, thereby improving the stability of the second door body 3 when closed; the first hinge assembly 6 is disposed on the vehicle body 1 and is used to move the rotating side of the second door body 3 away from or towards the vehicle body 1 along a first trajectory, and to rotate the opening side of the second door body 3 around a second trajectory to open or close.

[0034] Through the above technical solution, for example, the first door body 2 can be the front door of the vehicle, and the second door body 3 can be the rear door of the vehicle. When the two door bodies overlap and cooperate, the overlapping areas in the inward and outward directions of the vehicle can respectively form a first overlapping area 21 and a second overlapping area 31 on the first door body 2, and the second overlapping area 31 is located inside the first overlapping area 21. A sealing structure 10 such as a sealing strip can be provided between the first overlapping area 21 and the second overlapping area 31 to achieve a sealed cooperation between the two. Specifically, the cross section of the first overlapping area 21 in the first direction A can be set in a stepped shape, and correspondingly, the cross section of the second overlapping area 31 in the first direction A can also be set in a stepped shape, so that the first door body 2 and the second door body 3 can be connected more tightly.

[0035] When a user needs to open the rear door of the vehicle, such as Figure 5 and Figure 9 As shown, at this time, the second overlapping area 31 of the second door body 3 is located inside the first overlapping area 21 of the first door body 2. Direct opening would interfere with the first door body 2. Therefore, the user can first release the lock between the second door body 3 and the vehicle body 1 through the third locking assembly 7. This allows the rotating side of the second door body 3 to move along the first trajectory under the action of the first hinge assembly 6 to detach from the vehicle body. At the same time, the opening side of the second door body 3 will also move along the first direction A away from the first door body 2 under the action of the second locking assembly 5 until the opening side of the second door body 3 moves to a position where it will not interfere with the first door body 2 when it rotates through the first hinge assembly 6. Then, the lock between the opening side of the second door body 3 and the vehicle body 1 is released, allowing the opening side of the second door body 3 to rotate and open along the second trajectory away from the vehicle body 1.

[0036] When the user needs to close the rear door of the vehicle, such as Figure 5 and Figure 9 As shown, the opening side of the second door 3 can first be rotated along the second track towards the direction closer to the vehicle body 1. After the opening side of the second door 3 is in contact with the vehicle body 1, the second latch assembly 5 locks the opening side of the second door 3 to the vehicle body 1. Then, the opening side of the second door 3 moves along the first direction A towards the direction closer to the first door 2. At the same time, the rotating side of the second door 3 can move along the first track towards the side closer to the vehicle body 1 through the first hinge assembly 6 until the first overlapping area 21 of the first door 2 and the second overlapping area 31 of the second door 3 are engaged and connected. The rotating side of the second door 3 will also be in contact with the vehicle body 1. Finally, the third latch assembly 7 locks the second door 3 and the vehicle body 1, completing the door closing process.

[0037] When a user needs to open the front door of the vehicle, such as Figure 10 As shown, since the first overlapping area 21 of the first door body 2 is located outside the second overlapping area 31, it is only necessary to pull the handle on the front door or control the drive structure to directly drive the first door body 2 to open along the third trajectory away from the vehicle body 1 after the first door body 2 is unlocked from the first latch assembly 4. Correspondingly, when closing the first door body 2 of the vehicle, the first door body 2 is rotated in the opposite direction to move it along the third trajectory towards the vehicle body 1 until it fits against the vehicle body 1. Finally, the locking between the first door body 2 and the vehicle body 1 is achieved by the first latch assembly 4.

[0038] In this disclosed double-door vehicle, the overlapping area of ​​the two doors, relative to the inner side of the second door 3, can be moved away from the first door 2 in a first direction A by the second latch assembly 5. This allows the second door 3 to avoid the first door 2 when opening along the first trajectory. Thus, neither door will interfere with the other when opening; correspondingly, neither door will interfere with the other when closing. Based on this, disordered opening and closing of the double-door vehicle is achieved, improving the user experience.

[0039] The first trajectory can be referenced. Figure 7 and Figure 8 The trajectory of the rotating side of the second door 3 changes as follows: when the second door 3 is open, the rotating side of the second door 3 can detach from the vehicle body 1; when the second door 3 is closed, the rotating side of the second door 3 moves in the opposite direction and fits against the vehicle body 1. The second trajectory can be referenced... Figure 6 and Figure 9 The trajectory shown by the dashed line indicates that when the second door 3 is opened, the opening side of the second door 3 detaches from the vehicle body 1, and when the second door 3 is closed, the opening side of the second door 3 moves in the opposite direction and fits against the vehicle body 1.

[0040] In embodiments of this disclosure, such as Figure 2and Figure 3 As shown, the second latch assembly 5 may include a guide structure 51 and a latch structure 52 that is unlockably connected to the lock body of the second door 3. The guide structure 51 is disposed on the vehicle body 1. The latch structure 52 is slidably connected to the guide structure 51 along the first direction A to move in a first position and a second position, and remains locked to the opening side of the second door 3 during the movement in the first position and the second position. The first hinge assembly 6 may include a first hinge portion 61 connected to the second door 3, a second hinge portion 62 connected to the vehicle body 1, and a connecting arm 63 connecting the first hinge portion 61 and the second hinge portion 62. The rotating side of the second door 3 can rotate around the second hinge portion 62 by a first angle to move away from or towards the vehicle body 1 along a first trajectory. The opening side of the second door 3 can rotate around the second hinge portion 62 by a second angle to rotate open or close along a second trajectory.

[0041] The first position is the position of the opening side of the second door 3 when the first door 2 and the second door 3 cooperate with each other, and the second position is the position of the opening side of the second door 3 when the second door 3 will not interfere with the first door 2 during the opening process.

[0042] When the second door 3 is opened, the third latch assembly 7 first unlocks the second door 3. Then, the rotating side of the second door 3 can rotate by a first angle via the second hinge 62 to move away from the vehicle body 1 along the first trajectory. Simultaneously, the opening side of the second door 3 can move from the first position to the second position via the latch structure 52. After the opening side of the second door 3 moves to the second position, it unlocks from the latch structure 52. That is, before the opening side of the second door 3 rotates open along the second trajectory, the latch structure 52 unlocks from the lock body of the second door 3, allowing the opening side of the second door 3 to rotate via the second hinge 62 to open along the second trajectory. This completes the opening of the second door 3. When the second door 3 is closed, the opening side of the second door 3 can first rotate by the second hinge 62 to open along the second trajectory. The second hinge 62 rotates in the opposite direction along the second track to approach the vehicle body 1, so that the opening side of the second door 3 can be locked to the vehicle body 1 by the latch structure 52 located in the second position. That is, after the opening side of the second door 3 rotates along the second track, the latch structure 52 locks with the lock body of the second door 3. At this time, the opening side of the second door 3 is in the second position. Subsequently, the rotating side of the second door 3 can be rotated in the opposite direction by the second hinge 62 by the first angle to approach the vehicle body 1 along the first track. At the same time, the opening side of the second door 3 will slide from the second position to the first position through the latch structure 52. After the opening side of the second door 3 moves to the first position, the rotating side of the second door 3 is in contact with the vehicle body 1, and the third latch assembly 7 locks with the second door 3. Thus, the second door 3 is closed.

[0043] Of course, in order to ensure that the rotating side of the second door 3 can move back and forth on the first track, it will also rotate at a certain angle relative to the first hinge part 61 when it moves along the first track.

[0044] Specifically, the guide structure 51 may be provided with a guide opening extending along the first direction A, and the latch structure 52 may be provided with a connector. One end of the connector is connected to the latch structure 52, and the other end is inserted into the guide structure 51 through the guide opening. Thus, after the opening side of the second door 3 is locked with the latch structure 52, it can move back and forth along the first direction A through the latch structure 52 to move to the first position and the second position. In addition, in order to improve the stability of the latch structure 52 moving on the guide structure 51, the guide structure 51 may also be provided with U-shaped grooves with openings facing the guide openings on both sides in the height direction of the vehicle body 1. Correspondingly, the latch structure 52 may be provided with guide wheels that can roll in the U-shaped grooves. The guide wheels may abut against the side wall and / or bottom wall of the U-shaped groove to ensure the stability of the latch structure 52 in the left and right directions and / or the height direction of the vehicle body 1.

[0045] like Figure 4As shown, the first hinge portion 61 of the first hinge assembly 6 may include a first hinge seat 611 connected to the second door body 3 and a first rotating shaft 612 rotatably connected to the first hinge seat 611. The second hinge portion 62 may include a second hinge seat 621 connected to the vehicle body 1 and a second rotating shaft 622 rotatably connected to the second hinge seat 621. The second door body 3 is capable of rotating around the second rotating shaft 622. When the second door 3 is opened, the lock between the third latch assembly 7 and the vehicle body 1 is unlocked. The rotating side of the second door 3 will first rotate by a first angle around the axis L of the second rotation shaft 622 via the connecting arm 63, so that the rotating side of the second door 3 disengages from the vehicle body 1. This rotation trajectory forms the first trajectory. During this process, the first hinge seat 611 will also rotate relative to the first rotation shaft 612. At the same time, the opening side of the second door 3 will move from the first position to the second position. After the opening side of the second door 3 moves to the second position, the latch structure 52 unlocks from the opening side of the second door. The second door 3, the first hinge part 61, and the connecting arm 63 will rotate together around the axis L of the second rotation shaft 622 by a second angle to rotate and open the second door 3. The rotation trajectory forms a second trajectory; when the second door 3 is closed, the second door 3, connecting arm 63, and first hinge 61 need to be rotated in the opposite direction by a second angle so that the opening side of the second door 3 is locked with the latch structure 52 in the second position. Then, the rotating side of the second door 3 rotates in the opposite direction by a first angle around the axis L of the second rotation axis 622 via the connecting arm 63 so that the rotating side of the second door 3 is in contact with the body 1 and locked with the latch structure 52. During this process, the opening side of the second door 3 moves from the second position to the first position via the latch structure 52 until the opening side of the second door 3 moves to the first position. The third latch assembly 7 locks the second door 3 and the body 1, thus completing the closing of the second door 3. Among them, as shown in the figure Figure 11 and Figure 12As shown, the second hinge seat 621 can be connected to the rear floor inner wheel arch reinforcement plate 11 of the vehicle body 1. This eliminates the need to reserve space on the C-pillar of the vehicle and does not increase the size of the C-pillar, thus avoiding any restrictions on the styling seams. Secondly, by setting the second hinge seat 621 on the rear floor inner wheel arch reinforcement plate 11, the installation strength and rigidity requirements of the second door 3 can be effectively met. In addition, by setting the second hinge seat 621 on the rear floor inner wheel arch reinforcement plate 11, the size of the rear door opening in the first direction A will not be affected, and there is no need to increase the vehicle wheelbase to meet the needs of getting in and out of the vehicle. The connecting arm 63 can be bent inward toward the body 1 to form a gooseneck structure. The connecting arm 63 may include a detachably connected first connecting arm 631 and a second connecting arm 632, such that one of the first connecting arm 631 and the second connecting arm 632 can be connected to the first hinge seat 611, and the other can be connected to the second hinge seat 621. In this way, the first hinge seat 611 can be connected to the second door 3 first, and the second hinge seat 621 can be connected to the body 1 first. When the second door 3 is connected to the body 1, the first connecting arm 631 and the second connecting arm 632 are then mated together, thereby improving the efficiency of connecting the second door 3 to the body 1. Furthermore, the separate design of the first connecting arm 631 and the second connecting arm 632 can also be used to adjust the surface difference between the second door 3 and the body 1. Of course, the connecting arm 63 can also be constructed as a single-piece structure to facilitate the forming of the first hinge assembly 6.

[0046] Furthermore, it should be noted that although the rotating side of the second door 3 will tilt towards the outside of the vehicle body 1 at a certain angle relative to the first door 2 when it moves along the first trajectory, since there is a gap between the first overlapping area 21 and the second overlapping area 31 and they are sealed together by a deformable sealing structure 10 such as a sealing strip, and the tilt angle is small, even if the second door tilts, there will be no interference between the first door 2 and the second door 3. Thus, it is ensured that the opening side of the second door 3 can move towards the second position and open normally.

[0047] In some implementations, such as Figure 1As shown, a vehicle with double doors may include a third latch assembly 7, which can be unlocked to engage with another lock body of the second door 3 to limit the stability of the second door 3 in the closed state. Specifically, the third latch assembly 7 ensures the stability of the second door 3 in the closed state. Before opening the second door 3, the second door 3 must be unlocked from the third latch assembly 7, allowing the second door 3 to rotate a preset angle via the first rotating shaft 612 and move towards the first position via the latch structure 52. When closing the second door 3, after the second door 3 moves to the first position on the opening side and returns to the vehicle body 1 on the rotating side, the third latch assembly 7 locks the second door 3, thus placing the second door 3 in the closed state.

[0048] In addition, such as Figure 1 As shown, the vehicle with double doors may also include an adjustable-length stabilizer bar 9, one end of which can be hinged to the body 1 and the other end to the bottom of the second door 3. The stabilizer bar 9 can be configured as a cylinder structure, so that the stabilizer bar 9 can assist the stability of the second door 3 during opening or closing, thereby making the opening and closing process of the second door 3 smoother.

[0049] In addition, such as Figure 1 As shown, two second latching assemblies 5 can be provided, with the two second latching assemblies 5 spaced apart in the height direction of the vehicle body 1. This ensures the stability of the second door 3 when moving between the first and second positions, as well as the stability of the second door 3 when closed.

[0050] Of course, two first latch components 4 connected to the lock body of the first door body 2 can also be provided. The two first latch components 4 are spaced apart in the height direction of the vehicle body 1 to improve the stability of the first door body 2 after being connected to the first latch components 4. In addition, the rotating side of the first door body 2 can be connected to the vehicle body 1 through the second hinge assembly 8. Specifically, the second hinge assembly 8 can include a first hinge 81 and a second hinge 82. One end of the first hinge 81 can be connected to the rotating side of the first door body 2 through fasteners such as bolts or screws. One end of the second hinge 82 can be connected to the vehicle body 1 through fasteners such as bolts or screws. The other ends of the first hinge 81 and the other ends of the second hinge 82 are rotatably connected through a connecting shaft 83. During the opening or closing process of the first door body 2, the first hinge 81 will rotate around the connecting shaft 83 to realize the opening or closing of the first door body 2.

[0051] It should be noted that the connection between the lock body of the first door body 2 and the first latch assembly 4, and the locking engagement between the second door body 3 and the third latch assembly 7 are conventional lock body latch engagement structures on vehicles. For the sake of brevity, this disclosure will not elaborate on this structure.

[0052] A second aspect of this disclosure provides a method for opening the doors of a vehicle with double doors, such as... Figures 1 to 9 As shown, the double-door vehicle includes a first door 2 and a second door 3. The rotating side of the first door 2 and the rotating side of the second door 3 are respectively hinged to the vehicle body 1, and the opening side of the first door 2 and the opening side of the second door 3 overlap and cooperate. The opening method includes: while the rotating side of the second door 3 moves outward from the vehicle body 1 along a first opening trajectory, the opening side of the second door 3 moves away from the first door 2 in a first direction A and moves to a pre-opening position; the second door 3 is opened by rotating along a second opening trajectory.

[0053] The door opening method of this double-door vehicle can be applied to the structure shown in the above-mentioned double-door vehicle, and can also be applied to other double-door vehicles. Taking the above-mentioned double-door vehicle as an example, the first door 2 corresponds to the front door of the double-door vehicle, and the second door 3 corresponds to the rear door of the double-door vehicle. When the user needs to open the second door 3, he can pull or control the drive structure so that the rotating side of the second door 3 can move along the first opening trajectory first. At the same time, the opening side of the second door 3 can move from the first position to the second position through the latch structure. After the opening side of the second door 3 moves to the second position, that is, the pre-opening position, the second door 3 can rotate and open along the second opening trajectory under the action of the first hinge assembly 6. At this time, there is no interference between the second door 3 and the first door 2. Thus, the second door 3 can be opened normally. Based on this, the door opening method of this disclosure is used to open the door so that neither of the two doors will interfere with the other door when it is opened, thereby realizing disordered door opening of the double-door vehicle and improving the user experience.

[0054] Of course, in order to ensure the stability of the second door 3 in the closed state, the lock body on the second door 3 can be locked to the vehicle body 1. Thus, before the rotating side of the second door 3 moves outward along the first opening trajectory, the first lock between the second door 3 and the vehicle body 1 can be unlocked.

[0055] Specifically, during the process of the opening side of the second door 3 moving away from the first door 2 and moving a preset distance to the pre-opening position in the first direction A, the rotating side of the second door 3 rotates a first opening angle around the first pivot axis L in the direction away from the vehicle body 1; wherein, the trajectory of the rotating side of the second door 3 rotating a first opening angle around the first pivot axis L in the direction away from the vehicle body 1 forms a first opening trajectory; the preset distance is the minimum distance that the second door 3 can move from the initial position in the first direction A when it can avoid the opening side of the first door 2 during the rotation of the second opening trajectory, that is, the distance between the first position and the second position. For example, when the second door 3 is opened, the rotating side of the second door 3 first rotates a certain angle around the axis of the second rotation axis 622, that is, the first pivot axis L, that is, the first opening angle, to get away from the vehicle body 1. During this process, the opening side of the second door 3 moves from the initial position, that is, the first position, towards the pre-opening position, that is, the second position.

[0056] To ensure the stability of the second door 3 when its opening side moves in the first direction and when it is closed, a locking assembly that can move along the first direction is provided on the vehicle body 1. This locking assembly is used to maintain the second door 3 locked to the vehicle body 1 before it moves to the pre-opening position in the first direction. Therefore, after the opening side of the second door 3 moves away from the first door 2 in the first direction A and reaches the pre-opening position, the second lock between the opening side of the second door 3 and the vehicle body 1 is unlocked.

[0057] After the second lock is unlocked, the opening side of the second door 3 rotates a second opening angle around the first pivot axis L in a direction away from the vehicle body 1; wherein, the trajectory of the second door 3 rotating a second opening angle around the first pivot axis L in a direction away from the vehicle body 1 forms the second opening trajectory. That is, after the opening side of the second door 3 moves a preset distance to the pre-opening position, the opening side of the second door 3 can rotate a second opening angle around the axis of the second rotation axis 622, that is, the first pivot axis L, to open.

[0058] In the embodiments of this disclosure, the preset distance can be 20mm-50mm.

[0059] In addition, the connection between the first door body 2 and the vehicle body 1 is the conventional door body 1 connection method on the vehicle. When the first door body 2 needs to be opened, the user can drive the rotating side of the first door body 2 to rotate and open it along the third opening trajectory.

[0060] A third aspect of this disclosure also provides a method for closing the doors of a vehicle with double doors, such as... Figures 1 to 9As shown, the double-door vehicle includes a first door 2 and a second door 3. The rotating sides of the first door 2 and the second door 3 are respectively hinged to the vehicle body 1, and the opening side of the first door 2 can engage with the opening side of the second door 3. The closing method includes: rotating the opening side of the second door 3 along a first closing trajectory to a pre-closed position; moving the rotating side of the second door 3 along a second closing trajectory until it is in contact with the vehicle body 1; and simultaneously, the opening side of the second door 3 moves from the pre-closed position towards the first door 2 in a first direction A to close the second door 3. This closing method for the double-door vehicle can be applied to the structure shown above, and can also be applied to other double-door vehicles. Taking the aforementioned double-door vehicle as an example, the first door 2 corresponds to the front door of the double-door vehicle, and the second door 3 corresponds to the rear door of the double-door vehicle. When the user needs to close the second door 3, the second door 3 can first rotate along the first closing trajectory so that the opening side of the second door 3 is in contact with and locked to the vehicle body 1 at the pre-closed position, that is, the opening side of the second door 3 is located at the second position on the second latch assembly 5. Then, the rotating side of the second door 3 is in contact with the vehicle body 1 along the second closing trajectory. At the same time, the opening side of the second door 3 moves from the pre-closed position to its initial position when closed, that is, the opening side of the second door 3 moves from the second position to the first position to achieve the engagement with the first door 2. Thus, the second door 3 is closed normally. Based on this, by using the closing method of this disclosure, it is possible to ensure that neither of the two doors will interfere with the other when it is opened, thereby achieving disordered closing of the double-door vehicle and improving the user experience.

[0061] It should be noted that the pre-opening position, the pre-closed position, and the second position are the same positions on vehicle body 1.

[0062] Specifically, after the opening side of the second door 3 rotates along the first closing trajectory to the pre-closed position, in order to ensure the stability of the opening side of the second door 3 when it moves in the first direction, the vehicle body 1 is provided with a locking assembly that can move along the first direction A. The locking assembly is used to maintain the lock between the second door 3 and the vehicle body 1 as the second door 3 moves from the pre-closed position towards the first door 2. Therefore, a second lock can be engaged between the opening side of the second door 3 and the vehicle body 1 to ensure the stability of the opening side of the second door 3 when it moves in the first direction.

[0063] In addition, to ensure the stability of the second door 3 when it is closed, a first lock is engaged between the second door 3 and the vehicle body 1 after the second door 3 is closed.

[0064] Specifically, before the opening side of the second door 3 moves a preset distance relative to the first door 2 from the pre-closed position in the first direction A, the opening side of the second door 3 rotates a first closing angle about the first pivot axis L toward the vehicle body 1; wherein, the trajectory of the opening side of the second door 3 rotating the first closing angle about the first pivot axis L toward the vehicle body 1 forms a first closing trajectory; the preset distance is the minimum distance that the second door 3 can move from the initial position in the first direction A while avoiding the opening side of the first door 2 during the rotation along the second opening trajectory. That is, the opening side of the second door 3 can rotate a first closing angle about the axis L of the second rotation axis 622 to fit and lock with the vehicle body 1 in the pre-closed position.

[0065] As the opening side of the second door 3 moves a predetermined distance relative to the first door 2 from the pre-closed position in the first direction A, the rotating side of the second door 3 rotates a second closing angle about the first pivot axis L in the direction of approaching the vehicle body 1; wherein, the trajectory of the rotating side of the second door 3 rotating a second closing angle about the first pivot axis L in the direction of approaching the vehicle body 1 forms a second closing trajectory. That is, as the opening side of the second door 3 moves from the second position to the first position, the rotating side of the second door 3 rotates a second closing angle about the axis L of the second rotation axis to fit against the vehicle body 1.

[0066] In the embodiments of this disclosure, the preset distance can be 20mm-50mm.

[0067] In addition, the connection between the first door body 2 and the vehicle body 1 is the conventional door body 1 connection method on the vehicle. When it is necessary to close the first door body 2, the rotating side of the first door body 2 is driven to rotate along the third closing trajectory to close the first door body 2.

[0068] It should be noted that the first angle, the first opening angle, and the second closing angle in this disclosure are the same angle, and the second angle, the second opening angle, and the first closing angle are the same angle.

[0069] The preferred embodiments of this disclosure have been described in detail above with reference to the accompanying drawings. However, this disclosure is not limited to the specific details of the above embodiments. Within the scope of the technical concept of this disclosure, various simple modifications can be made to the technical solutions of this disclosure, and these simple modifications all fall within the protection scope of this disclosure.

[0070] It should also be noted that the various specific technical features described in the above specific embodiments can be combined in any suitable manner without contradiction. In order to avoid unnecessary repetition, this disclosure will not describe the various possible combinations separately.

[0071] Furthermore, various different embodiments of this disclosure can be combined in any way, as long as they do not violate the spirit of this disclosure, they should also be regarded as the content disclosed in this disclosure.

Claims

1. A door opening method for a split door vehicle including a first door body and a second door body, the rotation side of the first door body and the rotation side of the second door body being respectively hinged to a vehicle body, and the opening side of the first door body and the opening side of the second door body being engaged in a lapping manner, characterized in that, The door opening method includes: As the rotating side of the second door moves outward along the first opening trajectory, the opening side of the second door moves away from the first door in a first direction and moves to the pre-opening position. The second door is opened by rotating along the second opening trajectory.

2. The door opening method according to claim 1, characterized in that, Before the second door moves outward along the first opening trajectory on its rotating side, the first lock between the second door and the vehicle body is unlocked.

3. The door opening method according to claim 1, characterized in that, During the process of the second door body moving away from the first door body and moving a preset distance to the pre-opening position in the first direction on the opening side of the second door body, the rotating side of the second door body rotates around the first pivot axis in the direction away from the vehicle body by a first opening angle; The first opening trajectory is formed by the trajectory of the second door body rotating around the first pivot axis in a direction away from the vehicle body by the first opening angle. The preset distance is the minimum distance that the second door can move in the first direction from its initial position while avoiding the opening side of the first door during the rotation of the second door along the second opening trajectory.

4. The door opening method according to claim 1, characterized in that, After the opening side of the second door moves away from the first door in the first direction and to the pre-opening position, the second lock between the opening side of the second door and the vehicle body is unlocked.

5. The door opening method according to claim 4, characterized in that, After the second lock is unlocked, the opening side of the second door rotates a second opening angle about the first pivot axis toward a direction away from the vehicle body; The second opening trajectory is formed by the trajectory of the second door body rotating a second opening angle around the first pivot axis in a direction away from the vehicle body.

6. The door opening method according to claim 3, characterized in that, The vehicle body is provided with a locking assembly that can move along the first direction. The locking assembly is used to keep the second door locked to the vehicle body before the second door moves along the first direction to the pre-opening position.

7. The door opening method according to claim 3, characterized in that, The preset distance is 20mm-50mm.

8. The door opening method according to any one of claims 1-7, characterized in that, The first door body is opened by rotating along the third opening trajectory on the rotating side.

9. A method for closing the doors of a double-door vehicle, the double-door vehicle comprising a first door body and a second door body, wherein the rotating sides of the first door body and the rotating sides of the second door body are respectively hinged to the vehicle body, and the opening side of the first door body can engage with the opening side of the second door body, characterized in that, The door closing method includes: Rotate the opening side of the second door along the first closing trajectory to the pre-closed position; As the rotating side of the second door moves along the second closing trajectory to fit against the vehicle body, the opening side of the second door moves from the pre-closed position toward the first door in a first direction to close the second door.

10. The door closing method according to claim 9, characterized in that, After rotating the opening side of the second door body to the pre-closed position along the first closing trajectory, a second lock is engaged between the opening side of the second door body and the vehicle body.

11. The door closing method according to claim 10, characterized in that, After the second door is closed, the first lock between the second door and the vehicle body is engaged.

12. The door closing method according to claim 9, characterized in that, Before the opening side of the second door moves a preset distance relative to the first door in the first direction from the pre-closed position, the opening side of the second door rotates a first closing angle about the first pivot axis toward the direction of approaching the vehicle body; The first closing trajectory is formed by the trajectory of the opening side of the second door rotating around the first pivot axis toward the direction closer to the vehicle body by the first closing angle. The preset distance is the minimum distance that the second door can move from its initial position in the first direction while avoiding the opening side of the first door during the rotation of the second door along the second opening trajectory.

13. The door closing method according to claim 12, characterized in that, During the process of the opening side of the second door moving a preset distance relative to the first door in the first direction from the pre-closed position, the rotating side of the second door rotates around the first pivot axis toward the direction of approaching the vehicle body at a second closing angle. The second closing trajectory is formed by the trajectory of the second door body rotating around the first pivot axis toward the direction closer to the vehicle body by the second closing angle.

14. The door closing method according to claim 12, characterized in that, The vehicle body is provided with a locking assembly that can move along the first direction. The locking assembly is used to keep the second door body locked to the vehicle body as the second door body moves from the pre-closed position toward the first door body.

15. The door closing method according to claim 12, characterized in that, The preset distance is 20mm-50mm.

16. The door closing method according to any one of claims 9-15, characterized in that, The rotating side of the first door rotates along the third closing trajectory to close the first door.

17. A vehicle with double doors, characterized in that, include: Body; The first door body is hinged to the vehicle body on its rotating side; The second door body has a rotating side hinged to the vehicle body, and the opening side of the second door body is used to overlap and cooperate with the opening side of the first door body. A first latch assembly is disposed on the vehicle body and is used to unclampably engage with the lock body of the first door. The second latch assembly is disposed on the vehicle body and is used to engage with the opening side of the second door in a first direction in a slidably unlockable manner. The third latch assembly is disposed on the vehicle body and can be unlockably engaged with the second door to lock and unlock the second door and the vehicle body; A first hinge assembly is disposed on the vehicle body, for moving the rotating side of the second door away from or closer to the vehicle body along a first trajectory, and for rotating the opening side of the second door around a second trajectory to open or close.

18. The double-door vehicle according to claim 17, characterized in that, The second latch assembly includes a guide structure and a latch structure that is unlockably connected to the lock body of the second door. The guide structure is disposed on the vehicle body. The latch structure is slidably connected to the guide structure along the first direction to move in a first position and a second position, and remains locked to the opening side of the second door during the movement in the first position and the second position. The first hinge assembly includes a first hinge portion connected to the second door body, a second hinge portion connected to the vehicle body, and a connecting arm connecting the first hinge portion and the second hinge portion. The rotating side of the second door body can rotate around the second hinge portion by a first angle to move away from or towards the vehicle body along the first trajectory. The opening side of the second door body can rotate around the second hinge portion by a second angle to rotate open or close along the second trajectory.

19. The double-door vehicle according to claim 18, characterized in that, As the rotating side of the second door moves away from the vehicle body along the first trajectory, the opening side of the second door moves from the first position toward the second position; as the rotating side of the second door moves closer to the vehicle body along the first trajectory, the opening side of the second door moves from the second position toward the first position. Before the second door opens by rotating along the second trajectory, the latch structure unlocks the second door opening side; after the second door closes by rotating along the second trajectory, the latch structure locks the second door opening side.

20. The double-door vehicle according to claim 17, characterized in that, The double-door vehicle also includes an adjustable balance bar, which is used to make the second door open and close smoothly.

21. The double-door vehicle according to any one of claims 17-20, characterized in that, There are two second latching assemblies, which are spaced apart in the height direction of the vehicle body.