Collapsible steering wheel, steering system and vehicle

Abstract

The application discloses a folding steering wheel, a steering system and a vehicle, and belongs to the technical field of vehicles. The folding steering wheel comprises a main body, a rim and a cross beam. The rim is arranged at least partially around the main body. The cross beam is connected between the rim and the main body. The folding steering wheel has a folding state. In the folding state, at least part of the cross beam and at least part of the rim are folded relative to the main body. The folding state is beneficial to reducing the overall profile size of the folded folding steering wheel, reducing the occupation of the space in the vehicle, improving the space flexibility of the intelligent cabin, and meeting the storage requirement of the steering wheel in the intelligent driving mode.

Description

Technical Field

[0001] This application relates to the field of vehicle technology, and more particularly to a folding steering wheel, steering system, and vehicle. Background Technology

[0002] With the increasing demand for intelligent vehicles and smart cockpit space layouts, folding steering wheels are gradually being applied to vehicle steering systems. Folding steering wheels allow for adjustment of the steering wheel's position or posture when the vehicle is in intelligent driving, parking, or resting states, thereby reserving more cabin space for the driver and improving cabin space utilization and user experience.

[0003] However, even after folding, the folding steering wheel in the relevant technology still occupies a significant amount of space, which may affect the space utilization effect of the smart cockpit. Summary of the Invention

[0004] This application provides a folding steering wheel, a steering system, and a vehicle, which helps to reduce the space occupied by the steering wheel after folding, thereby at least partially solving the above-mentioned technical problems.

[0005] To achieve the above objectives, according to a first aspect of this application, a folding steering wheel is provided, comprising: main body; The rim, at least partially surrounding the body, is disposed therearound; and A crossbeam is connected between the wheel rim and the main body. The folding steering wheel has a folded state in which at least a portion of the crossbeam and at least a portion of the wheel rim are folded relative to the main body.

[0006] In some embodiments, the folding steering wheel also has an unfolded state, and at least a portion of the crossbeam is movable relative to the main body to drive at least a portion of the wheel rim to move together, so that the folding steering wheel switches between the folded state and the unfolded state.

[0007] In some embodiments, the rim includes a first segment and a second segment, which are respectively movably disposed relative to the main body and configured to fold toward a direction away from the driver's seat.

[0008] In some embodiments, in the folded state, the first segment is configured to be located below the second segment along the vehicle height direction.

[0009] In some embodiments, the crossbeam includes a first beam and a second beam that are rotatably connected to the main body, the first segment being connected to the first beam and rotating synchronously with the first beam, and the second segment being connected to the second beam and rotating synchronously with the second beam.

[0010] In some embodiments, in the unfolded state, the projections of the first beam and the second beam along the axis of the main body at least partially overlap.

[0011] In some embodiments, in the unfolded state, at least a portion of the first beam is located on the side of the second beam away from the user.

[0012] In some embodiments, the first beam includes a first mating portion and a second mating portion, wherein the thickness of the first mating portion along the axial direction of the main body is less than the thickness of the second mating portion along the axial direction of the main body, and the second beam includes a third mating portion and a fourth mating portion, wherein the thickness of the third mating portion along the axial direction of the main body is greater than the thickness of the fourth mating portion along the axial direction of the main body. In the unfolded state, the first mating part and the third mating part are arranged opposite each other along the main body axis, and the second mating part and the fourth mating part are arranged opposite each other along the main body axis.

[0013] In some embodiments, the first beam has a first mating surface and the second beam has a second mating surface. In the unfolded state, the first mating surface and the second mating surface are arranged opposite each other along the axial direction of the main body, and both the first mating surface and the second mating surface are inclined relative to the axial direction of the main body.

[0014] In some embodiments, in the unfolded state, the first mating surface and the second mating surface are at least partially in contact.

[0015] In some embodiments, in the unfolded state, the first beam has a first exposed surface facing the user, the second beam has a second exposed surface facing the user, the area of ​​the second exposed surface is larger than the area of ​​the first exposed surface, and the second exposed surface is provided with an operating area for user operation.

[0016] In some embodiments, at least a portion of the second beam is configured to be closer to the user than the first beam, and the surface of the second beam facing the user is provided with an operating area for user operation.

[0017] In some embodiments, the first beam is rotatably disposed relative to the main body along a first rotation axis, and the second beam is rotatably disposed relative to the main body along a second rotation axis; the first rotation axis and the second rotation axis are parallel or coincident.

[0018] In some embodiments, the first rotation axis and the second rotation axis extend along the width direction of the vehicle.

[0019] In some embodiments, there are two crossbeams, which are located on opposite sides of the body along the width of the vehicle.

[0020] In some embodiments, a drive mechanism is also included for driving the crossbeam and the wheel rim to fold relative to the body.

[0021] According to a second aspect of this application, a steering system is provided, including the folding steering wheel described in the above-described technical solution.

[0022] According to a third aspect of this application, a vehicle is also provided, including the folding steering wheel described in the above technical solution, or including the steering system described in the above technical solution.

[0023] In some embodiments, a storage structure is also included, the storage structure having a storage opening and a receiving cavity communicating with the storage opening, wherein the folding steering wheel is at least partially received in the receiving cavity via the storage opening in the folded state.

[0024] In the folding steering wheel of this application embodiment, by folding at least a portion of the rim and at least a portion of the crossbeam relative to the main body, the rim and crossbeam can be stored in the direction closer to the main body in the folded state, which helps to reduce the overall outline size of the folding steering wheel after folding and reduce the occupation of the vehicle interior space, thus freeing up more usable space inside the vehicle.

[0025] Other features and advantages of this application will be described in detail in the following detailed description section. Attached Figure Description

[0026] To more clearly illustrate the technical solutions in the embodiments of this application, the accompanying drawings used in the description of the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this application. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0027] To gain a more complete understanding of this application and its beneficial effects, the following description will be provided in conjunction with the accompanying drawings, wherein the same reference numerals in the following description denote the same parts.

[0028] Figure 1 This is a front view of the folding steering wheel provided in an exemplary embodiment of this disclosure; Figure 2 yes Figure 1 A sectional view along the middle AA; Figure 3 This is an exploded view of the folding steering wheel provided in an exemplary embodiment of this disclosure; Figure 4 This is a schematic diagram of the structure of the folding steering wheel provided in an exemplary embodiment of this disclosure. Figure 1 ; Figure 5This is a schematic diagram of the structure of the folding steering wheel provided in an exemplary embodiment of this disclosure. Figure 2 ; Figure 6 This is a side view of the folding steering wheel in the unfolded state according to an exemplary embodiment of this disclosure; Figure 7 This is a side view of a folding steering wheel in a folded state, provided in an exemplary embodiment of this disclosure; Figure 8 This is a side view of another folding steering wheel in a folded state, provided in an exemplary embodiment of this disclosure; Figure 9 This is a schematic diagram of the internal structure of the folding steering wheel provided in an exemplary embodiment of this disclosure; Figure 10 This is an exploded view of the drive mechanism in the folding steering wheel provided in an exemplary embodiment of this disclosure; Figure 11 This is a schematic diagram of the structure of a drive mechanism in a folding steering wheel provided in an exemplary embodiment of this disclosure; Figure 12 This is a schematic diagram of another drive mechanism in a folding steering wheel provided in an exemplary embodiment of this disclosure; Figure 13 This is a schematic diagram of another drive mechanism in a folding steering wheel provided in an exemplary embodiment of this disclosure; Figure 14 This is a schematic diagram of another drive mechanism in a folding steering wheel provided in an exemplary embodiment of this disclosure; Figure 15 This is a schematic diagram of another drive mechanism in a folding steering wheel provided in an exemplary embodiment of this disclosure; Figure 16 This is a schematic diagram of the steering system provided in an exemplary embodiment of this disclosure; Figure 17 This is a schematic diagram of the vehicle structure provided in an exemplary embodiment of this disclosure.

[0029] Explanation of reference numerals in the attached figures: 10. Steering column; 100. Main body; 110. First limiting structure; 120. Second limiting structure; 130. Third limiting structure; 140. Fourth limiting structure; 200. Wheel flange; 210. First section; 220. Second section; 300. Crossbeam; 310. First beam; 311. First mating surface; 312. First mating part; 313. Second mating part; 314. First exposed surface; 320. Second beam 321. Operating area; 322. Second mating surface; 323. Third mating part; 324. Fourth mating part; 325. Second exposed surface; 400. Drive mechanism; 410. Drive component; 420. First connecting part; 430. Second connecting part; 440. Gear set; 450. Transmission wheel set; 460. Belt; 470. Linkage mechanism; 500. First rotating shaft; 600. Second rotating shaft; 700. Elastic element. Detailed Implementation

[0030] The technical solutions of the embodiments of this application will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only a part of the embodiments of this application, and not all of them. All other embodiments obtained by those skilled in the art based on the embodiments of this application without creative effort are within the protection scope of this application.

[0031] According to the first aspect of this application, referring to Figures 1 to 7 This disclosure provides a folding steering wheel for use in vehicles. Exemplarily, the folding steering wheel can be applied to a vehicle's steering system, such as a steer-by-wire system. In intelligent driving, parking, or other preset intelligent cockpit conditions, the driver's need to operate the steering wheel is reduced. At this time, the folding steering wheel can switch from an unfolded state to a folded state, thereby reducing the overall space occupied by the steering wheel and improving the utilization rate of the intelligent cockpit's interior space.

[0032] In some embodiments, the folding steering wheel includes a body 100, a rim 200, and a crossbeam 300. The body 100 is used for a drive connection with the vehicle's steering column 10, so that when the driver turns the folding steering wheel, the steering force can be transmitted to the steering column 10 via the body 100, thereby achieving vehicle steering control. Exemplarily, the body 100 can be directly connected to the steering column 10, or it can be connected to the steering column 10 via a spline connection, bolt connection, snap-fit ​​structure, coupling, or other transmission structure to achieve torque transmission between the two.

[0033] In some embodiments, refer to Figure 1 and Figure 3The main body 100 serves as the central support structure for the folding steering wheel, used for mounting and supporting the wheel rim 200 and crossbeam 300. Since the wheel rim 200 and crossbeam 300 can move relative to the main body 100, the main body 100 can also be used to install rotation structures, limiting structures, transmission structures, or drive structures, thereby facilitating the provision of an installation base for the folding and unfolding of the wheel rim 200 and crossbeam 300. For example, the main body 100 can be a metal frame structure, a metal and plastic composite structure, or other structural forms that meet the support strength requirements.

[0034] In some embodiments, an airbag may also be disposed within the main body 100. By disposing of the airbag within the main body 100, the airbag can be positioned closer to the driver, thereby facilitating buffer protection for the driver in the event of a vehicle collision. Exemplarily, an installation cavity may be formed within the main body 100, within which the airbag is installed. The installation cavity may also house structures such as an airbag control module, a detonation assembly, a wiring harness, or a mounting bracket. Furthermore, a cover may be provided on the driver-facing side of the main body 100. This cover can be opened when the airbag deploys, allowing the airbag to deploy towards the driver.

[0035] In some embodiments, the main body 100 may be fixed as a whole or at least partially movable relative to the vehicle. For example, the main body 100 may move axially with the steering column 10 to adjust the steering wheel forward and backward; or, the main body 100 may move vertically with the steering column 10 to adjust the steering wheel height, thereby facilitating adaptation to different drivers' driving habits and riding postures.

[0036] In some embodiments, refer to Figure 1 and Figure 3 The rim 200 is at least partially surrounding the body 100. Exemplarily, the rim 200 can serve as an area for the driver's hand to contact and apply force, allowing the driver to apply rotational force to the body 100 by gripping the rim 200, thereby causing the body 100 to rotate the steering column 10 to achieve vehicle steering control. Because the rim 200 is at least partially surrounding the body 100, it facilitates a larger contact area between the driver's hand and the folding steering wheel, thus enabling the driver to operate the steering wheel from different grip positions.

[0037] In some embodiments, the rim 200 can be a ring structure or a non-closed ring structure partially surrounding the body 100. For example, the rim 200 can be a circular ring, an elliptical ring, a racetrack shape, a rectangular rounded corner shape, or other irregular shapes.

[0038] In some embodiments, the rim 200 may include a frame and a covering layer. The frame provides supporting strength to improve the structural stability of the rim 200 under stress; the covering layer is disposed outside the frame for the driver's hand to contact. Exemplarily, the covering layer may include a rubber layer, a foam layer, a leather layer, a fabric layer, or other flexible material layer to improve the driver's comfort when holding the rim.

[0039] In some embodiments, refer to Figure 1 and Figure 3 A crossbeam 300 connects the rim 200 and the main body 100. Exemplarily, the crossbeam 300 can be connected to both the rim 200 and the main body 100, so that the rim 200 is connected to the main body 100 via the crossbeam 300, thereby forming an integrated steering wheel structure for driver operation. Since the crossbeam 300 is located between the rim 200 and the main body 100, when the crossbeam 300 moves relative to the main body 100, it can drive the rim 200 connected to it to move at least partially relative to the main body 100, thereby switching the folding steering wheel between a folded state and an unfolded state.

[0040] In some embodiments, refer to Figure 3 and Figure 7 The connection between the crossbeam 300 and the wheel rim 200 can be fixed, detachable, or a transmission connection. For example, the crossbeam 300 and the wheel rim 200 can be connected by screws, clips, welded structures, interlocking structures, connectors, or other connecting structures so that the crossbeam 300 can drive the wheel rim 200 to move synchronously when it moves. Furthermore, the crossbeam 300 and the wheel rim 200 can also be integrally formed, which helps to reduce the number of connecting parts and improve the structural integration.

[0041] In some embodiments, the folding steering wheel has a folded state in which at least a portion of the crossbeam 300 and at least a portion of the rim 200 are folded relative to the body 100. It should be understood that "folded state" can be understood as a working state in which the crossbeam 300 and the rim 200 are in a retracted posture relative to the body 100.

[0042] For example, in the folded state, at least a portion of the structure of the crossbeam 300 and the rim 200 changes position relative to the main body 100, thereby reducing the overall outer contour dimension of the folding steering wheel. This disclosure does not limit the specific positional relationships in the folded state, as long as it achieves a reduction in the overall size of the folding steering wheel.

[0043] Exemplarily, at least a portion of the crossbeam 300 and at least a portion of the rim 200 fold relative to the main body 100. This can be achieved by one crossbeam 300 driving the folding of a segment of the rim 200 connected to it, or by multiple crossbeams 300 respectively driving the folding of multiple corresponding portions of the rim 200, or by all crossbeams 300 and all rims 200 participating in the folding together. In embodiments employing a multi-segment rim 200 structure, different rim 200 segments can be folded synchronously or sequentially according to a preset order; this disclosure does not specifically limit this.

[0044] When the crossbeam 300 moves relative to the main body 100 and causes the rim 200 to retract towards the vicinity of the main body 100, the distance between the rim 200 and the main body 100 decreases, and the spacing between the crossbeam 300 and the main body 100 also decreases accordingly, thereby concentrating the overall outer contour of the folding steering wheel towards the periphery of the main body 100. Since the rim 200 typically constitutes the main radial outer contour of the folding steering wheel, its retraction towards the main body 100 helps to reduce the radial dimension of the folding steering wheel and further reduce its overall envelope size.

[0045] By folding at least a portion of the crossbeam 300 and at least a portion of the rim 200 relative to the main body 100, the radial dimension and overall space occupation of the folding steering wheel in the folded state are reduced. In scenarios such as autonomous driving, parking and resting, getting in and out of the vehicle, or other situations where continuous steering operations are not required, the folded steering wheel can reserve more space for the driver's activity area, thereby improving the flexibility of vehicle cabin space utilization.

[0046] In some embodiments, the crossbeam 300 can be used to transmit the force applied by the driver to the wheel rim 200. Exemplarily, the rotational force applied by the driver to the wheel rim 200 can be transmitted via the crossbeam 300 to the body 100, and then from the body 100 to the steering column 10, thereby achieving vehicle steering. Therefore, in addition to connecting the wheel rim 200 and the body 100, the crossbeam 300 can also serve as a force transmission structure, which helps to improve the overall stability of the steering wheel structure.

[0047] In some embodiments, refer to Figure 6 and Figure 7The folding steering wheel also has an unfolded state, where at least a portion of the crossbeam 300 can move relative to the main body 100, thereby causing at least a portion of the wheel rim 200 to move as well, allowing the folding steering wheel to switch between the folded and unfolded states. Exemplarily, the crossbeam 300 can be connected to the main body 100 via a pivot, hinge structure, revolute joint, or other rotatable connection structure, enabling the crossbeam 300 to rotate relative to the main body 100 about a preset rotation axis. By setting the crossbeam 300 to move relative to the main body 100, rather than only the wheel rim 200 moving relative to the main body 100, the wheel rim 200 and the crossbeam 300 can be stored together in the folded state, thus further reducing the space occupied by the folding steering wheel in the folded state.

[0048] For example, the "unfolded state" can be understood as the crossbeam 300 and the wheel flange 200 being in a working state that allows the driver to hold and operate them relative to the main body 100. It should be noted that the folded state and the unfolded state can be distinguished based on the spatial position changes of the crossbeam 300 and the wheel flange 200, or based on the angular position changes of the crossbeam 300 and the wheel flange 200 relative to the main body 100.

[0049] In some embodiments, refer to Figure 6 and Figure 7 In its unfolded state, the wheel rim 200 is flush with the rest of the wheel. This flush arrangement can be understood as the various parts of the wheel rim 200 being located within the same contour plane of the wheel rim 200, or within adjacent and continuously transitioning contour planes, thus creating a continuous gripping contour for the entire wheel rim 200. For example, the wheel rim 200 includes a first segment 210 and a second segment 220. The first segment 210 and the second segment 220 can be located in the same plane in the unfolded state, or they can form a small height difference or transition surface in the connecting area, as long as it does not affect the overall continuity of the wheel rim 200 or the driver's normal grip and operation.

[0050] For example, when the folding steering wheel switches from a folded state to an unfolded state, the first segment 210 and the second segment 220 can move to a predetermined position and form a continuous ring or semi-ring structure together with other wheel rim 200 portions. Since the wheel rim 200 is flush with the surface, the driver's hand can move continuously along the surface of the wheel rim 200 when holding it, which helps to improve grip comfort and reduce the impact on the operating experience caused by obvious misalignment of the wheel rim 200 surface.

[0051] It should be understood that a flush configuration does not limit the rim 200 to forming a strictly geometric plane. In some embodiments, the rim 200 can also be an arc surface, a curved surface, an irregular curved surface, or an ergonomic three-dimensional contour structure. As long as the various parts of the rim 200 can form a continuous and smooth grip contour in the unfolded state, enabling the folding steering wheel to meet the requirements of normal steering operation, it can be considered to fall within the scope of a flush configuration of the rim 200 as a whole.

[0052] In some embodiments, when the folding steering wheel is in the unfolded state, the crossbeam 300 can be located between the main body 100 and the wheel rim 200 to form a steering wheel structure for normal operation by the driver; when the folding steering wheel is in the folded state, the crossbeam 300 can drive the wheel rim 200 to move towards the main body 100, thereby reducing the overall outline size of the steering wheel, which helps to reduce the space occupied by the steering wheel in the driver's seating area.

[0053] In some embodiments, refer to Figure 6 and Figure 7 The radial dimension of the folding steering wheel in its folded state is smaller than that in its unfolded state. The radial dimension can be understood as the outer contour dimension measured radially along the body 100, with the central region of the body 100 as a reference. For example, the radial dimension can be the distance between the center of the body 100 and the outermost edge of the rim 200, or it can be the maximum radial dimension of the overall outer contour of the folding steering wheel; this disclosure does not specifically limit it in this regard.

[0054] For example, when the folding steering wheel is in the unfolded state, the rim 200 and the crossbeam 300 extend radially outward toward the body 100 to form a steering wheel profile for the driver to grip and operate. When the folding steering wheel is switched to the folded state, the crossbeam 300 and the rim 200 move toward the body 100, causing at least a portion of the structure of the rim 200 and the crossbeam 300 to converge toward the body 100, thereby reducing the distance between the body 100 and the outer side of the rim 200. Since the rim 200 and the crossbeam 300 constitute the main outer contour of the folding steering wheel, the overall outer contour dimension of the folding steering wheel decreases accordingly as the rim 200 and the crossbeam 300 move toward the body 100, thus making the radial dimension in the folded state smaller than the radial dimension in the unfolded state.

[0055] By making the folding steering wheel have a smaller radial dimension when folded, it is beneficial to reduce the overall envelope size of the folding steering wheel, thereby reducing its impact on the vehicle's interior space. For example, in autonomous driving mode, parking mode, rest mode, or other scenarios where the driver does not need to continuously operate the steering wheel, the folding steering wheel can remain in the vehicle interior with a smaller size, reserving more space for the driver's leg area, the entry and exit area, or the cabin's functional layout area, thus improving the flexibility of the vehicle's space arrangement.

[0056] It should be understood that the reduction in radial dimension is not limited to the form in which the crossbeam 300 rotates to cause the rim 200 to fold. In other embodiments, the rim 200 and the crossbeam 300 can also be brought closer to the body 100 by swinging, sliding, extending, flipping, or a combination of multiple motion forms of the crossbeam 300.

[0057] In some embodiments, the crossbeam 300 and the rim 200 can be driven by different drive structures, thereby moving relative to the main body 100 respectively. For example, the crossbeam 300 can move relative to the main body 100 via a first drive structure, and the rim 200 can move relative to the main body 100 via a second drive structure. By providing separate drive structures, the movement states of the crossbeam 300 and the rim 200 can be controlled separately, thereby facilitating the adjustment of the folding sequence, folding angle, or movement trajectory of the crossbeam 300 and the rim 200 according to different usage requirements. Furthermore, the crossbeam 300 and the rim 200 can also move at different times to achieve staged folding or unfolding.

[0058] For example, at least one of the first drive structure and the second drive structure may include a motor, a reduction mechanism, a linkage mechanism 470, a gear mechanism, a belt drive mechanism 460, an electromagnetic drive structure, or other drive components capable of driving the movement of the corresponding structure. Furthermore, the first drive structure and the second drive structure may also be electrically connected to a vehicle controller to control the movement of the crossbeam 300 and the wheel flange 200 according to the vehicle state.

[0059] In other embodiments, reference is made to Figure 3 and Figure 7 The crossbeam 300 and the wheel rim 200 are interconnected and driven by the same drive structure. Exemplarily, the crossbeam 300 and the wheel rim 200 can be fixedly connected, drive-through connected, or integrally formed, so that when the crossbeam 300 moves relative to the main body 100, it drives the wheel rim 200 to move synchronously relative to the main body 100. By using the same drive structure to drive the crossbeam 300 and the wheel rim 200, the number of drive components can be reduced, thereby simplifying the overall structure of the folding steering wheel and reducing structural layout space.

[0060] In some embodiments, the same drive structure can be directly connected to the crossbeam 300 and drive the wheel rim 200 to move via the crossbeam 300. For example, when the drive structure drives the crossbeam 300 to rotate relative to the main body 100 around a preset rotation axis, the wheel rim 200 can rotate synchronously relative to the main body 100 under the drive of the crossbeam 300, thereby realizing the switching of the folding steering wheel between the folded state and the unfolded state. Since the wheel rim 200 and the crossbeam 300 move synchronously, it is beneficial to reduce the difficulty of motion coordination between the crossbeam 300 and the wheel rim 200.

[0061] In some embodiments, refer to Figure 6 and Figure 7 When the folding steering wheel is in the folded state, at least a portion of the crossbeam 300 and at least a portion of the rim 200 are folded relative to the body 100 to reduce the radial dimension of the folding steering wheel; when the folding steering wheel is in the unfolded state, at least a portion of the crossbeam 300 and at least a portion of the rim 200 are unfolded relative to the body 100. Exemplarily, when the folding steering wheel is in the folded state, at least a portion of the crossbeam 300 and at least a portion of the rim 200 are retracted relative to the body 100 so that the crossbeam 300 and the rim 200 are arranged as a whole toward the body 100. When the folding steering wheel is in the unfolded state, at least a portion of the crossbeam 300 and at least a portion of the rim 200 are unfolded relative to the body 100 to form a ring-shaped or near-ring-shaped structure for driver operation.

[0062] In some embodiments, refer to Figure 6 and Figure 7 By having the crossbeam 300 and wheel rim 200 retract together towards the main body 100 in the folded state, the space occupied by the crossbeam 300 and wheel rim 200 can be compressed in the radial or axial direction, thereby reducing the overall external dimensions of the folding steering wheel and facilitating the arrangement of interior space in the vehicle cabin. In the unfolded state, the crossbeam 300 and wheel rim 200 can return to their usable positions relative to the main body 100, allowing the driver to grip the wheel rim 200 and transmit the operating force to the main body 100, thus achieving vehicle steering control.

[0063] In some embodiments, refer to Figure 6 and Figure 7 The folding and unfolding of the crossbeam 300 and the wheel flange 200 can be synchronous or phased. For example, in the case of synchronous action, the crossbeam 300 and the wheel flange 200 can change position simultaneously under the same driving action; in the case of phased action, the crossbeam 300 and the wheel flange 200 can be folded or unfolded sequentially to adapt to different structural layout requirements.

[0064] In some embodiments, refer to Figure 3 and Figure 6 The crossbeam 300 can be configured as at least two, and the rim 200 can be configured as at least two segments. At least a portion of the crossbeam 300 and at least a portion of the rim 200 are folded or unfolded relative to the main body 100. This can be understood as at least one crossbeam 300 and its corresponding rim 200 segment participating in the folding or unfolding action, or it can be understood as all crossbeams 300 and all rim 200 segments participating in the folding or unfolding action.

[0065] The above structural design makes the folding process of the steering wheel configurable, allowing for different implementation methods such as partial or complete folding depending on the specific structural layout, drive configuration, or usage requirements. When only part of the crossbeam 300 and wheel rim 200 segments participate in the folding, it is beneficial to free up some space while ensuring basic operational functions; when all of the crossbeam 300 and wheel rim 200 segments participate in the folding, it is beneficial to further reduce the overall outer dimensions of the folding steering wheel, thereby improving the flexibility of interior space utilization.

[0066] In some embodiments, each crossbeam 300 can be configured in a one-to-one correspondence with the corresponding rim 200 segment, or it can be a one-to-many or many-to-one connection relationship. For example, one crossbeam 300 can connect multiple rim 200 segments at the same time, or multiple crossbeams 300 can work together on the same rim 200 segment to form different forms of linkage structures, thereby adapting to different folding motion requirements.

[0067] In some embodiments, by setting the crossbeam 300 and the rim 200 as a multi-segment structure, the folding steering wheel can form a continuous or nearly continuous operating ring structure in the unfolded state, and in the folded state, it can form different degrees of storage shape depending on the number of crossbeam 300 and rim 200 segments involved in folding, so as to adapt to different vehicle interior space layout requirements.

[0068] In some embodiments, when both the crossbeam 300 and the rim 200 are multi-segment structures, each segment of the crossbeam 300 and the rim 200 can participate in the folding motion under the action of the drive structure, so that each structure is retracted towards the main body 100 in the folded state, thereby further reducing the overall space occupied by the folding steering wheel. Through the overall folding structure, the ring-shaped structure originally intended for the driver's grip can be transformed into a more compact spatial layout in the non-use state, adapting to the vehicle's space utilization needs during autonomous driving or parking conditions.

[0069] In some embodiments, the connection between the crossbeam 300 and the wheel flange 200 can be a rigid connection, a hinged connection, a rotating connection, or a flexible connection. For example, a rigid connection can maintain a relatively fixed spatial relationship between the crossbeam 300 and the wheel flange 200 during movement; a hinged connection can allow the crossbeam 300 and the wheel flange 200 to rotate relative to each other around the connection point; a flexible connection can achieve motion transmission through material deformation to adapt to the needs of different folding trajectories.

[0070] In some embodiments, by linking the crossbeam 300 and the rim 200, the crossbeam 300 can be used as the main driving force-bearing component during the folding process of the folding steering wheel, and the motion is transmitted to the rim 200 through the crossbeam 300. This allows the rim 200 and the crossbeam 300 to be synchronously retracted toward the main body 100 in the folded state and synchronously returned to the operating position in the unfolded state, which helps to improve the consistency of structural movement and the coordination of the folding process.

[0071] In some embodiments, the crossbeam 300 is configured to be closer to the body 100 when the folding steering wheel is in the folded state compared to when it is in the unfolded state. It is understood that "closer to the body 100" means that the distance between the crossbeam 300 and the body 100 is reduced when the steering wheel is in the folded state compared to when it is in the unfolded state. Exemplarily, this distance can be the spacing between the crossbeam 300 and the body 100 in the radial direction, axial direction, or other predetermined directions. By making the crossbeam 300 closer to the body 100 in the folded state, the crossbeam 300 can be spatially retracted towards the periphery of the body 100, thereby helping to reduce the overall profile dimensions of the folding steering wheel in the folded state.

[0072] In some embodiments, refer to Figure 6 and Figure 7 The crossbeam 300 is configured to be at least partially located within the radial outer contour of the body 100 when the folding steering wheel is in the folded state. It is understood that the "radial outer contour of the body 100" can be the projected range of the body 100 in the radial direction, or the spatial range defined by the outer periphery of the body 100. By ensuring that the crossbeam 300 at least partially enters the radial outer contour of the body 100 in the folded state, the crossbeam 300 and the body 100 can at least partially overlap in the radial direction, thereby improving spatial compactness in the folded state.

[0073] In some embodiments, refer to Figure 6 and Figure 7 The rim 200 includes a first section 210 and a second section 220, which are respectively movably arranged relative to the main body 100. The first section 210 and the second section 220 are configured to fold in a direction away from the driver's seat.

[0074] The direction away from the driver's seat can be understood as the direction from the driver's area towards the front of the vehicle, or it can be understood as the direction extending from the driver's seat towards the steering column 10. This disclosure does not limit the specific definition of this direction, as long as it enables the first segment 210 and the second segment 220 to move away from the driver's activity area during the folding process.

[0075] For example, when the folding steering wheel switches from an unfolded state to a folded state, the first segment 210 and the second segment 220 change position under the action of the corresponding crossbeam 300 and move away from the driver's seat. Since the first segment 210 and the second segment 220 both constitute at least part of the structure of the wheel rim 200, during the folding process, the wheel rim 200 that was originally closer to the driver can be brought forward towards the front of the vehicle, thereby increasing the distance between the wheel rim 200 and the driver's body.

[0076] By configuring the first segment 210 and the second segment 220 to fold away from the driver's seat, the possibility of spatial interference between the wheel flange 200 and the driver's leg area is reduced. Especially in scenarios such as driver getting in and out of the vehicle, seat adjustment, resting in autonomous driving mode, or rearranging the cabin space, the folded wheel flange 200 can free up more space in front of the driver, thereby improving the flexibility of the vehicle's interior space utilization.

[0077] In some embodiments, the first segment 210 and the second segment 220 can be folded synchronously; in other embodiments, the first segment 210 and the second segment 220 can also be folded sequentially according to a preset timing sequence. For example, the first segment 210 moves away from the driver's seat first, and then the second segment 220 completes the folding action; or the first segment 210 and the second segment 220 move simultaneously at different folding angles. This disclosure does not limit the specific movement sequence, folding angle, or movement trajectory of the first segment 210 and the second segment 220.

[0078] It should be understood that the folding of the first segment 210 and the second segment 220 toward the direction away from the driver's seat does not limit them to moving in a straight line. In some embodiments, the first segment 210 and the second segment 220 can be folded by rotation about a pivot; in other embodiments, the movement toward the direction away from the driver's seat can also be achieved by swinging, sliding, flipping, linkage, or a combination of various motion forms. As long as the wheel rim 200 can be moved away from the driver's activity area as a whole during the folding process, the technical solutions of this disclosure are applicable.

[0079] In some embodiments, refer to Figure 6 and Figure 7 In the folded state, the first section 210 is configured to be located below the second section 220 along the height direction of the vehicle body.

[0080] It should be understood that the vehicle height direction can be the vertical direction of the vehicle. For example, under normal driving conditions, the vehicle height direction can be perpendicular to the ground. This disclosure does not limit the specific definition of the vehicle height direction.

[0081] For example, the first segment 210 may be located on the side of the main body 100 closer to the driver's seat, and the second segment 220 may be located on the side of the main body 100 farther from the driver's seat. When the folding steering wheel is switched from an unfolded state to a folded state, the first segment 210 folds away from the driver's seat, thereby reducing the area occupied by the first segment 210 on the driver's leg area.

[0082] By staggering the first segment 210 and the second segment 220 along the vehicle height direction in the folded state, interference between the first segment 210 and the second segment 220 during folding is avoided, thus providing arrangement space for the movement trajectories of the first segment 210 and the second segment 220. Simultaneously, since the first segment 210, closer to the driver's seat, moves away from the driver's seat, the distance between the driver's leg area and the wheel rim 200 is increased, thereby freeing up space in front of the driver and improving the flexibility of space utilization in scenarios such as getting in and out of the vehicle, resting, or autonomous driving.

[0083] In some embodiments, refer to Figure 6 and Figure 7 When the folding steering wheel switches from the unfolded state to the folded state, the first segment 210 and the second segment 220 move relative to each other under the drive of the corresponding drive structure, so that the first segment 210 and the second segment 220 are arranged in a vertically layered manner in the height direction of the vehicle body. By placing the first segment 210 below the second segment 220 in the folded state, the first segment 210 and the second segment 220 can at least partially overlap after folding, which helps to reduce the overall size occupied by the wheel flange 200 in the longitudinal and radial directions.

[0084] Furthermore, by making the first segment 210 and the second segment 220 form an upper and lower stacked structure in the folded state, the overall outline of the folded wheel flange 200 can be made more compact, which is conducive to further reducing the overall envelope size of the folding steering wheel, thereby reducing the occupancy of the folding steering wheel on the driver's leg area and the interior space of the vehicle.

[0085] In some embodiments, the first segment 210 and the second segment 220 may have different lengths, curvatures, sizes or coverage areas; for example, the first segment 210 closer to the driver's seat side is longer than the second segment 220 farther from the driver's seat side, in order to meet the ergonomic requirements of the driver's side.

[0086] In some embodiments, refer to Figure 2 and Figure 3 The crossbeam 300 includes a first beam 310 and a second beam 320 that are rotatably connected to the main body 100. A first segment 210 is connected to the first beam 310 and rotates synchronously with the first beam 310. A second segment 220 is connected to the second beam 320 and rotates synchronously with the second beam 320.

[0087] In some embodiments, when the folding steering wheel is in the folded state, the first beam 310 and the first segment 210 are folded relative to the main body 100; when the folding steering wheel is in the unfolded state, the first beam 310 and the first segment 210 are unfolded relative to the main body 100. Exemplarily, the first beam 310 may be fixedly connected, transmissionally connected, or integrally formed with the first segment 210, so that the first beam 310 moves synchronously with the first segment 210. By dividing the wheel rim 200 into the first segment 210 corresponding to the first beam 310, the first segment 210 can participate in the folding action under the action of the first beam 310, thereby improving the storage capacity of a local area of ​​the wheel rim 200.

[0088] In some embodiments, refer to Figure 2 and Figure 3 When the folding steering wheel is in the folded state, the second beam 320 and the second segment 220 are folded relative to the main body 100; when the folding steering wheel is in the unfolded state, the second beam 320 and the second segment 220 are unfolded relative to the main body 100. Exemplarily, the second beam 320 and the second segment 220 can also be fixedly connected, driven connected, or integrally formed. By setting the second beam 320 and the second segment 220, another part of the wheel rim 200 structure can also participate in the folding, thereby further improving the overall space storage capacity of the folding steering wheel.

[0089] In some embodiments, refer to Figure 3 and Figure 7 The first beam 310 and the second beam 320 are configured to move synchronously, so that the first segment 210 and the second segment 220 fold or unfold synchronously. Exemplarily, the first beam 310 and the second beam 320 can be connected by a gear mechanism, a linkage mechanism 470, a synchronous belt mechanism, a synchronous shaft, or other synchronous transmission structure to establish a synchronous movement relationship between them. This synchronous movement configuration allows the first segment 210 and the second segment 220 to maintain a relatively coordinated movement state during folding, thereby reducing the possibility of movement interference between different structures.

[0090] In some embodiments, the first beam 310 is rotatably disposed relative to the main body 100 along a first rotation axis. For example, the first beam 310 can rotate clockwise about the first rotation axis to unfold the first segment 210; or, the first beam 310 can rotate counterclockwise about the first rotation axis to fold the first segment 210. The first rotation axis can be a fixed axis or a virtual axis whose position changes with structural movement.

[0091] In some embodiments, refer to Figure 3 and Figure 7The second beam 320 is rotatably arranged relative to the main body 100 along a second rotation axis. For example, the second beam 320 can swing, flip, or rotate relative to the main body 100 around the second rotation axis to drive the second segment 220 to move synchronously. By setting the first and second rotation axes respectively, the first beam 310 and the second beam 320 can adopt different folding trajectories, thereby adapting to different structural layout requirements.

[0092] In some embodiments, refer to Figure 2 and Figure 3 In the unfolded state, the projections of the first beam 310 and the second beam 320 along the axial direction of the main body 100 at least partially overlap. For example, the axial direction of the main body 100 can be the steering wheel axial direction or other directions related to the steering column 10 axial direction. By ensuring that the projections of the first beam 310 and the second beam 320 along the axial direction of the main body 100 at least partially overlap, the first beam 310 and the second beam 320 can form a stacked arrangement structure in the unfolded state.

[0093] For example, the main body 100 is connected to the steering column 10, and the main body 100 can drive the steering column 10 to rotate around a preset axis to achieve vehicle steering control. Since the main body 100 is connected to the steering column 10 and rotates synchronously with the steering column 10, the main body 100 has a rotation axis that is consistent with the axis of the steering column 10. In this embodiment, the axial direction of the main body 100 can be understood as the direction extending along the rotation axis.

[0094] In some embodiments, in the unfolded state, at least a portion of the first beam 310 is located on the side of the second beam 320 away from the user. Exemplarily, the user may be a driver or other person operating a folding steering wheel, and the side away from the user can be understood as the side closer to the steering column 10 relative to the second beam 320. In the unfolded state, the first beam 310 and the second beam 320 are arranged in a front-to-back relationship along the axial direction of the body 100, wherein the second beam 320 is located closer to the user, and the first beam 310 is located on the side of the second beam 320 away from the user.

[0095] In some embodiments, refer to Figure 2 and Figure 4 In the unfolded state, the second beam 320 shields at least a portion of the first beam 310 along the axial direction of the main body 100. Exemplarily, shielding can be understood as, when viewed along the axial direction of the main body 100, the second beam 320 is located between the first beam 310 and the viewing direction, such that at least a portion of the first beam 310 is shielded by the second beam 320. In other words, when projected along the axial direction of the main body 100, the projections of the second beam 320 and the first beam 310 at least partially overlap, thereby placing at least a portion of the projection of the first beam 310 within the projection range of the second beam 320. This disclosure does not specifically limit the shielding area, shielding ratio, or overlap range.

[0096] In some embodiments, refer to Figure 2 and Figure 5 At least a portion of the second beam 320 may be located on the side of the first beam 310 opposite to the steering column 10, while the first beam 310 is located on the side of the second beam 320 closer to the steering column 10. When the folding steering wheel is in the unfolded state, viewed along the axial direction of the main body 100, the second beam 320 can cover at least a portion of the first beam 310, so that the first beam 310 is at least partially hidden behind the second beam 320. This arrangement helps to reduce the area of ​​the first beam 310 that the driver can directly observe, thereby allowing the folding steering wheel to form a more complete and continuous appearance when unfolded.

[0097] In some embodiments, refer to Figure 2 and Figure 4 The operating area 321 for user operation is located on the second beam 320. Since the second beam 320 shields at least part of the first beam 310 along the axial direction of the main body 100, the driver mainly contacts and observes the second beam 320 when normally using the steering wheel. By centrally locating the operating area 321 on the second beam 320, functional components such as buttons, touch structures, scrolling structures, or display structures can be arranged in a position easily accessible to the driver. This also helps reduce the dispersed arrangement of functional components across multiple crossbeams 300, improving structural integration.

[0098] Furthermore, by having the second beam 320 shield at least a portion of the first beam 310 along the axial direction of the main body 100, the first beam 310 and the second beam 320 can be arranged in a stacked configuration in the unfolded state, thereby providing space for relative movement between the first beam 310 and the second beam 320 in the folded and unfolded states. This is beneficial for satisfying the folding function while also ensuring structural compactness and aesthetic consistency in the unfolded state.

[0099] It should be understood that the second beam 320 shielding the first beam 310 is not limited to complete shielding. In some embodiments, the second beam 320 only shields a partial area of ​​the first beam 310; in other embodiments, the second beam 320 may shield most or even substantially all of the first beam 310. As long as the second beam 320 can shield at least a partial area of ​​the first beam 310 when viewed along the axial direction of the body 100, it can be considered that the arrangement of the second beam 320 shielding at least a portion of the first beam 310 along the axial direction of the body 100 is satisfied. In some embodiments, refer to Figure 1 and Figure 2At least one of the first beam 310 and the second beam 320 is provided with an operating area 321 for user operation. Exemplarily, the operating area 321 may include a button area, a scroll wheel area, a touch area, a display area, or other human-machine interface area. By placing the operating area 321 in the crossbeam 300 area, the driver can easily operate vehicle functions while holding the steering wheel. For example, the operating area 321 may be electrically connected to a vehicle controller to control vehicle audio, cruise control, driver assistance, or other functions.

[0100] In some embodiments, refer to Figure 2 and Figure 3 The first beam 310 includes a first mating part 312 and a second mating part 313. The thickness of the first mating part 312 along the axial direction of the main body 100 is less than the thickness of the second mating part 313 along the axial direction of the main body 100. The second beam 320 includes a third mating part 323 and a fourth mating part 324. The thickness of the third mating part 323 along the axial direction of the main body 100 is greater than the thickness of the fourth mating part 324 along the axial direction of the main body 100. In the unfolded state, the first mating part 312 and the third mating part 323 are arranged opposite each other along the axial direction of the main body 100, and the second mating part 313 and the fourth mating part 324 are arranged opposite each other along the axial direction of the main body 100.

[0101] The mating part can be understood as the area where the first beam 310 and the second beam 320 are close to or cooperate with each other in the unfolded state. This disclosure does not limit the specific shape of the mating part, which can be a planar structure, a curved surface structure, an arc surface structure, or a structure formed by a combination of multiple surfaces.

[0102] For example, different regions of the first beam 310 have different thicknesses along the axial direction of the main body 100, and different regions of the second beam 320 also have different thicknesses along the axial direction of the main body 100. Specifically, the first mating portion 312 is relatively thin, the second mating portion 313 is relatively thick, the third mating portion 323 is relatively thick, and the fourth mating portion 324 is relatively thin. Therefore, in the unfolded state, with the first mating portion 312 and the third mating portion 323 correspondingly arranged, and the second mating portion 313 and the fourth mating portion 324 correspondingly arranged, the thicknesses of the corresponding regions of the first beam 310 and the second beam 320 can form a complementary distribution.

[0103] By setting the thinner and thicker areas in a corresponding manner, it is beneficial to control the thickness of local areas while ensuring the overall structural strength of the crossbeam 300, thus avoiding excessive overall thickness of the crossbeam 300. Simultaneously, the complementary thickness structure also helps to improve the fit between the first beam 310 and the second beam 320, resulting in a more continuous appearance of the crossbeam 300 in its unfolded state.

[0104] In some embodiments, the first mating part 312 and the second mating part 313, and the third mating part 323 and the fourth mating part 324, can be transitioned by an inclined surface; in other embodiments, they can also be transitioned by an arc surface, a curved surface, or a stepped surface. This disclosure does not specifically limit this.

[0105] Furthermore, since the first beam 310 and the second beam 320 are at least partially overlapped along the axis of the main body 100 in the unfolded state, the above-mentioned complementary thickness design also helps to balance the structural support requirements of the crossbeam 300 and the folding movement requirements within a limited installation space, thereby improving the structural compactness of the folding steering wheel.

[0106] With the above structural design, even with the overall thickness of the first beam 310 and the second beam 320 being limited, different areas can have relatively high local structural strength, which is beneficial to improving the bending resistance and support capacity of the first beam 310 and the second beam 320 during the stress process.

[0107] In some embodiments, refer to Figure 1 and Figure 2 The thickness variation of the first beam 310 and the second beam 320 can be linear, stepped, curved, or other gradual.

[0108] In some embodiments, the thickened areas of the first beam 310 and the second beam 320 may also be provided with reinforcing ribs, reinforcing plates, local bosses or other reinforcing structures, thereby further improving the structural stability of the corresponding areas.

[0109] In some embodiments, refer to Figure 2 and Figure 4 The first beam 310 has a first mating surface 311, and the second beam 320 has a second mating surface 322. In the unfolded state, the first mating surface 311 and the second mating surface 322 are arranged opposite to each other along the axial direction of the main body 100, and both the first mating surface 311 and the second mating surface 322 are inclined relative to the axial direction of the main body 100.

[0110] It should be understood that the first mating surface 311 and the second mating surface 322 are used to achieve the mating between the first beam 310 and the second beam 320, and their specific shapes are not limited. For example, the first mating surface 311 and the second mating surface 322 can be at least one of a plane, a stepped surface, a curved surface, a folded surface, or a composite surface formed by combining multiple surface segments.

[0111] When the first mating surface 311 and the second mating surface 322 are planes, the inclined setting can be understood as the planes where the first mating surface 311 and the second mating surface 322 are located forming an angle with the axis of the main body 100, that is, the first mating surface 311 and the second mating surface 322 are neither perpendicular to the axis of the main body 100 nor parallel to the axis of the main body 100.

[0112] When the first mating surface 311 and the second mating surface 322 are stepped surfaces, the inclined setting can be understood as the overall contour trend of multiple stepped surfaces being inclined relative to the axial direction of the main body 100. For example, along the extension direction of the first beam 310 or the second beam 320, the height of each step gradually changes, thereby making the stepped surface as a whole form an inclined transition structure.

[0113] When the first mating surface 311 and the second mating surface 322 are curved surfaces, the inclined setting can be understood as the tangent plane, fitting plane, or reference plane characterizing the overall extension trend of the curved surface in the corresponding area being inclined relative to the axial direction of the main body 100. For example, the first mating surface 311 and the second mating surface 322 can be at least one of an arc-shaped curved surface, a circular arc transition surface, or a free-form surface, respectively.

[0114] The inclined arrangement mentioned here does not limit the first mating surface 311 and the second mating surface 322 to be a single planar structure, but rather defines the mating relationship in which the first mating surface 311 and the second mating surface 322 are inclined relative to the axial direction of the main body 100. As long as the overall mating trend of the first mating surface 311 and the second mating surface 322 is inclined relative to the axial direction of the main body 100, it falls under the inclined arrangement described in this disclosure.

[0115] It should be understood that the tilt setting mentioned here refers to the formation of a non-zero angle and a non-90° angle between the corresponding plane and the axis of the main body 100. Therefore, the tilt setting does not include the case of being parallel to the axis of the main body 100, nor does it include the case of being perpendicular to the axis of the main body 100.

[0116] The mating surface can be understood as the surface used for mating, contact, or limiting when the first beam 310 and the second beam 320 are close to each other. Exemplarily, the first mating surface 311 and the second mating surface 322 can be respectively disposed on the sides of the first beam 310 and the second beam 320 facing each other. The inclined arrangement means that the first mating surface 311 and the second mating surface 322 form an angle with the axial direction of the steering column 10, rather than being perpendicular to the axial direction of the steering column 10. This disclosure does not limit the specific value of the included angle; for example, it can be 5° to 45°, and can also be adjusted according to the steering wheel size, folding stroke, and structural layout requirements.

[0117] For example, when the folding steering wheel switches from a folded state to an unfolded state, the first beam 310 and the second beam 320 gradually approach each other, and the first mating surface 311 and the second mating surface 322 approach each other and form a mating surface. Since both the first mating surface 311 and the second mating surface 322 are inclined surfaces, the inclined surfaces can generate a guiding effect during the process of the first beam 310 and the second beam 320 approaching each other, so that the relative positional relationship of the first beam 310 and the second beam 320 gradually adjusts as they approach the final unfolded position, thereby helping to reduce the impact of assembly errors, manufacturing errors, or motion errors on the positional accuracy of the unfolded state.

[0118] In some embodiments, refer to Figure 1 and Figure 2 In the unfolded state, the first mating surface 311 and the second mating surface 322 are at least partially in contact. By setting mutually mating inclined surfaces, when the first beam 310 and the second beam 320 reach the unfolded position, the first mating surface 311 and the second mating surface 322 can form a large contact area, which helps to improve the support stability between the first beam 310 and the second beam 320, and allows the operating force acting on the wheel flange 200 to be transmitted through the first beam 310 and the second beam 320, thereby helping to improve the overall rigidity of the folding steering wheel in the unfolded state.

[0119] It is understandable that "fitting" can refer to surface contact, partial contact, adjacent arrangement with small gaps, or other relatively close mating states. By ensuring that the first beam 310 and the second beam 320 are at least partially fitted in their unfolded state, they can form a mutually supporting relationship, thereby improving the overall structural stability and load-bearing capacity of the crossbeam 300. This fitted arrangement also helps to reduce the gap between the first beam 310 and the second beam 320, thus improving the overall structural compactness.

[0120] In some examples, the first mating surface 311 and the second mating surface 322 can both be planes; in other examples, the first mating surface 311 and the second mating surface 322 can also be arc surfaces, conical surfaces, stepped surfaces, or composite surfaces formed by a combination of multiple planes. As long as they can form a mutual mating relationship when the folding steering wheel is unfolded and achieve guiding, supporting, or limiting functions, the technical solutions of this disclosure are applicable.

[0121] When the first beam 310 and the second beam 320 rotate to their unfolded positions around their corresponding rotation axes, the interaction between the first mating surface 311 and the second mating surface 322 constrains the relative positions of the first beam 310 and the second beam 320, thereby forming a relatively stable integral structure. In this way, when the driver applies steering force through the wheel flange 200, the load acting on the first beam 310 and the second beam 320 can be transmitted through the first mating surface 311 and the second mating surface 322, which helps reduce localized stress concentration and improves the structural stability of the folding steering wheel in its unfolded state.

[0122] In some embodiments, refer to Figure 4 and Figure 5 In the unfolded state, the first beam 310 has a first exposed surface 314 facing the user, and the second beam 320 has a second exposed surface 325 facing the user. The area of ​​the second exposed surface 325 is larger than the area of ​​the first exposed surface 314, and the second exposed surface 325 is provided with an operating area 321 for user operation. Exemplarily, the first exposed surface 314 and the second exposed surface 325 can be the visible and touchable areas of the first beam 310 and the second beam 320 facing the driver in the unfolded state, respectively. The exposed surface can be a plane, a curved surface, or a continuous surface formed by splicing multiple surface segments, and this disclosure does not limit this.

[0123] Because the area of ​​the second exposed surface 325 is larger than the area of ​​the first exposed surface 314, the second beam 320 provides a larger user interaction area compared to the first beam 310 in the unfolded state. For example, the operating area 321 may integrate at least one of buttons, scroll wheels, touchpads, touch strips, or display structures, enabling the user to control vehicle functions or interact with information via the second beam 320.

[0124] In some embodiments, the operating area 321 may be located in the central region of the second exposed surface 325 or in a region close to the natural contact position of the user's hand, thereby improving ease of operation. In other embodiments, the operating area 321 may also extend partially along the second exposed surface 325 to form a strip-shaped, block-shaped, or partitioned operating area 321 domain, which is not limited in this disclosure.

[0125] By using a larger second exposed surface 325 to arrange the operating area 321, it is beneficial to centrally arrange interactive functional components and reduce the wiring complexity caused by the dispersed setting of functions. On the other hand, it allows the driver to operate the second beam 320 more centrally in a normal driving posture, thereby improving the intuitiveness and consistency of human-machine interaction. At the same time, since the first exposed surface 314 has a relatively small area, it plays more of a structural matching and appearance transition role in the unfolded state, which helps to make the overall crossbeam 300 visually form a layered distribution effect.

[0126] In some embodiments, refer to Figure 2 and Figure 5 At least a portion of the second beam 320 is configured to be closer to the user than the first beam 310, and the surface of the second beam 320 facing the user has an operating area 321 for user operation. Exemplarily, in the unfolded state, the second beam 320 is closer to the driver's reach area than the first beam 310. Specifically, the second beam 320 may be located closer to the driver's operating space, while the first beam 310 is located in a space relatively far from the driver, thereby making the second beam 320 more easily accessible to the user.

[0127] Since the second beam 320 is closer to the user, the surface of the second beam 320 facing the user is more suitable for setting up an interactive structure, such as at least one of a button structure, a knob structure, a touch structure, a sliding structure, or a display structure, thereby forming an operation area 321, enabling the user to input or control vehicle functions through the second beam 320.

[0128] In some embodiments, the operation area 321 may be arranged in the central region of the second beam 320 facing the user surface to match the user's natural grip or touch position; in other embodiments, the operation area 321 may also be arranged partially or in segments along the second beam 320 to adapt to the zoning control requirements of different functions, which is not limited in this disclosure.

[0129] By placing the second beam 320 closer to the user than the first beam 310 and integrating the operating area 321 onto the user-facing surface of the second beam 320, it is beneficial to reduce the distance the user's hands need to move during operation, thereby improving the convenience of operation. On the other hand, it is beneficial to concentrate the interactive functions on the main controlled components, thereby simplifying the functional distribution structure of the beam 300 and improving the consistency and integration of the overall layout.

[0130] By setting the operating area 321 only in the second beam 320, the wiring, sensors, or control components related to the operating area 321 can be centrally arranged inside or near the second beam 320, thus eliminating the need to set corresponding wiring paths in both the first beam 310 and the second beam 320. Compared to a structure where the operating area 321 is set in both the first beam 310 and the second beam 320, this solution reduces the dispersion of wiring distribution, makes the wiring harness arrangement path more concentrated, and helps to reduce the overall wiring complexity.

[0131] In some embodiments, the operation area 321 may include one or more of a button assembly, a touch assembly, a toggle switch, a roller structure, or a pressure sensing structure. The corresponding signal transmission lines may be centrally located in the accommodating space inside the second beam 320 and led out or transmitted through the connection structure between the second beam 320 and the main body 100.

[0132] By centralizing the operational functions in the second beam 320, the space occupied by the first beam 310 can be reduced, simplifying its structural layout. This reduces the processing complexity of the first beam 310 and decreases the alignment requirements between the first beam 310 and the second beam 320 during assembly. Simultaneously, centralized wiring reduces the crossing paths of the wiring harness during folding movements, mitigating the risk of interference or excessive bending during repeated folding, thus improving the overall structural coordination and assembly convenience.

[0133] In some embodiments, refer to Figure 7 and Figure 8 The first beam 310 is rotatably arranged relative to the main body 100 along the first rotation axis, and the second beam 320 is rotatably arranged relative to the main body 100 along the second rotation axis; the first rotation axis and the second rotation axis are parallel or coincident.

[0134] In some embodiments, the first rotation axis and the second rotation axis extend along the width direction of the vehicle.

[0135] For example, when the first rotation axis is parallel to the second rotation axis, the first beam 310 and the second beam 320 can rotate relative to each other around different axes; when the first rotation axis coincides with the second rotation axis, the first beam 310 and the second beam 320 can move around the same axis, which helps to reduce the space occupied by the rotating structure.

[0136] In some embodiments, refer to Figure 6 and Figure 7 The first beam 310 and the second beam 320 rotate in opposite directions. For example, when the first beam 310 rotates clockwise around a first rotation axis, the second beam 320 can rotate counterclockwise around a second rotation axis. By having the first beam 310 and the second beam 320 rotate in opposite directions, they can move towards the sides of the main body 100 during folding, thereby reducing the possibility of motion interference between them and further improving the spatial compactness in the folded state.

[0137] In some embodiments, refer to Figure 1 and Figure 4 There are two crossbeams 300, located on opposite sides of the main body 100 along the vehicle width direction. The vehicle width direction can be understood as the left-right direction of the vehicle, that is, the direction perpendicular to the vehicle's front-back and vertical directions during normal driving. In this disclosure, the vehicle width direction is used to characterize the circumferential arrangement of the crossbeams 300 within the main body 100.

[0138] For example, the two crossbeams 300 can be arranged on the left and right sides of the main body 100 respectively, thereby forming a symmetrical or nearly symmetrical structural layout around the main body 100. In some embodiments, the two crossbeams 300 can be connected to corresponding areas of the rim 200 respectively to support and drive different sections of the rim 200, thereby enabling the rim 200 to move in sections between the folded and unfolded states.

[0139] By setting two crossbeams 300 and placing them on opposite sides of the main body 100 along the vehicle width direction, it is beneficial to form a left-right distributed support system for the crossbeams 300, thereby improving the overall structural stress balance. Furthermore, it allows the wheel flange 200 to fold together on both sides during folding, reducing its lateral footprint in the folded state and resulting in a more compact arrangement of the folding steering wheel within the vehicle's interior space. In some embodiments, refer to... Figure 1 and Figure 4 There are two first beams 310, which are located on opposite sides of the main body 100 along the width direction of the vehicle. By setting two first beams 310, the first segment 210 can be supported in different areas in the third direction z, which helps to improve the structural stability of the first segment 210 during movement.

[0140] In some embodiments, refer to Figure 1 and Figure 5 There are two second beams 320, which are located on opposite sides of the main body 100 along the width of the vehicle. By arranging the two second beams 320 at intervals along the width of the vehicle, the second segment 220 can form a multi-point support structure during movement, which helps to improve the uniformity of force distribution during the folding and unfolding of the second segment 220.

[0141] In some embodiments, refer to Figure 7 and Figure 9 The system also includes a drive mechanism 400, which drives the crossbeam 300 and wheel rim 200 to fold relative to the main body 100. Exemplarily, the drive mechanism 400 may include a motor, a reduction mechanism, a gear mechanism, a linkage mechanism 470, a belt mechanism 460, a lead screw mechanism, an electromagnetic drive structure, or other drive structures capable of power output. By providing the drive mechanism 400, driving force can be provided to the crossbeam 300 and wheel rim 200, thereby enabling the folding steering wheel to fold. Furthermore, by uniformly driving the crossbeam 300 and wheel rim 200 with the drive mechanism 400, the consistency of the folding action can be improved.

[0142] In some embodiments, refer to Figure 7 and Figure 9The drive mechanism 400 is disposed within the main body 100. Exemplarily, an installation space for accommodating the drive mechanism 400 can be formed within the main body 100, allowing the drive mechanism 400 to be installed inside the main body 100. By disposing of the drive mechanism 400 within the main body 100, the drive structure can be concentrated in the central area of ​​the steering wheel, thereby reducing the space occupied by the peripheral structure. Supporting and protecting the drive mechanism 400 with the main body 100 also improves the overall structural integration.

[0143] In some embodiments, refer to Figure 10 and Figure 11 The folding steering wheel also includes a first pivot 500 connected to the first beam 310 of the crossbeam 300. The first pivot 500 is configured to rotate relative to the body 100 under the drive of the drive mechanism 400, thereby causing the first beam 310 to rotate relative to the body 100 along a first rotation axis, and driving the first segment 210 of the rim 200 to rotate relative to the body 100. Exemplarily, the first pivot 500 can be fixedly connected to the first beam 310, integrally formed, or connected via a connector. By rotating the first pivot 500 relative to the body 100, the power output from the drive mechanism 400 can be transmitted to the first beam 310, causing the first beam 310 and the first segment 210 to fold or unfold. Transmitting power through the first pivot 500 also improves the stability of the first beam 310 during movement.

[0144] In some embodiments, refer to Figure 11 and Figure 12 The folding steering wheel also includes a second pivot 600 connected to the second beam 320 of the crossbeam 300. The second pivot 600 is configured to rotate relative to the main body 100 under the drive of the drive mechanism 400, thereby causing the second beam 320 to rotate relative to the main body 100 along a second rotation axis, and driving the second segment 220 of the rim 200 to rotate relative to the main body 100. Exemplarily, the second pivot 600 can be fixedly connected to the second beam 320, integrally formed, or connected via a connector. Rotation of the second pivot 600 enables the second beam 320 and the second segment 220 to synchronously change posture, thereby achieving folding and unfolding of the corresponding areas.

[0145] In some embodiments, refer to Figure 10 and Figure 11The first rotating shaft 500 and the second rotating shaft 600 are coaxially arranged and rotatably sleeved together. Exemplarily, the first rotating shaft 500 can be sleeved outside the second rotating shaft 600, or the second rotating shaft 600 can be sleeved outside the first rotating shaft 500. By coaxially arranging the first rotating shaft 500 and the second rotating shaft 600, the two rotating shafts can be arranged within the same axial region, thereby reducing the space occupied by the rotating structure. The rotatably sleeved arrangement also allows the first rotating shaft 500 and the second rotating shaft 600 to maintain relatively independent rotation while cooperating with each other.

[0146] In some embodiments, refer to Figure 10 and Figure 12 The main body 100 is provided with a first limiting structure 110, which is configured to engage with the first rotating shaft 500 when the folding steering wheel switches from a folded state to an unfolded state, so that the folding steering wheel is in the unfolded state. For example, the first limiting structure 110 may include a limiting block, a limiting groove, a snap-fit ​​structure, a stop structure, or other structures capable of limiting the rotational position. By engaging with the first rotating shaft 500, the position of the first beam 310 in the unfolded state can be limited, thereby helping to maintain the first beam 310 in the corresponding unfolded posture.

[0147] In some embodiments, the main body 100 is provided with a second limiting structure 120, which is configured to engage with the first pivot 500 when the folding steering wheel switches from an unfolded state to a folded state, thereby keeping the folding steering wheel in a folded state. Exemplarily, the second limiting structure 120 may include a limiting block, a limiting groove, a snap-fit ​​structure, a stop structure, or other structures capable of limiting the rotational position. By forming a limiting relationship between the second limiting structure 120 and the first pivot 500, the position of the first beam 310 in the folded state can be restricted, thereby helping to maintain the corresponding storage position of the first beam 310 after folding.

[0148] In some embodiments, refer to Figure 10 and Figure 12 The main body 100 is provided with a third limiting structure 130, which is configured to cooperate with the second rotating shaft 600 to limit the folding steering wheel when it switches from a folded state to an unfolded state, so that the folding steering wheel is in the unfolded state. Exemplarily, the third limiting structure 130 may include a limiting block, a limiting groove, a snap-fit ​​structure, a stop structure, or other structures capable of limiting the rotational position. By limiting the rotational position of the second rotating shaft 600 through the third limiting structure 130, the second beam 320 can be kept in a preset position in the unfolded state, thereby improving the structural stability in the unfolded state.

[0149] In some embodiments, the main body 100 is provided with a fourth limiting structure 140, which is configured to engage with the second pivot 600 when the folding steering wheel switches from an unfolded state to a folded state, thereby keeping the folding steering wheel in a folded state. Exemplarily, the fourth limiting structure 140 may include a limiting block, a limiting groove, a snap-fit ​​structure, a stop structure, or other structures capable of limiting the rotational position. By limiting the position of the second pivot 600 in the folded state through the fourth limiting structure 140, the second beam 320 can maintain a corresponding folded posture after folding, thereby improving structural stability and space compactness in the folded state.

[0150] In some embodiments, refer to Figure 10 and Figure 12 By setting the first limiting structure 110, the second limiting structure 120, the third limiting structure 130 and the fourth limiting structure 140, the rotation positions of the first beam 310 and the second beam 320 can be limited during the switching of the folding steering wheel between the folding state and the unfolded state, so that the first beam 310 and the second beam 320 are in the corresponding preset positions when switching to the folding state or the unfolded state.

[0151] Specifically, the first limiting structure 110 and the third limiting structure 130 can be used to restrict the positions of the first beam 310 and the second beam 320 in the unfolded state, respectively, and the second limiting structure 120 and the fourth limiting structure 140 can be used to restrict the positions of the first beam 310 and the second beam 320 in the folded state, respectively. Through the above-mentioned limiting relationship, the first beam 310 and the second beam 320 can form relatively clear positional boundaries during folding and unfolding, thereby improving the positional consistency between the folded and unfolded states.

[0152] By restricting the folding and unfolding positions, it is possible to reduce the possibility of structural interference, fit deviation, or operation position offset caused by excessive rotation, insufficient rotation, or positional deviation, thereby improving the structural stability and usability of the folding steering wheel in different states.

[0153] In some embodiments, refer to Figures 12 to 15The drive mechanism 400 includes a drive member 410 configured to provide driving force to switch the folding steering wheel between a folded state and an unfolded state. Exemplarily, the drive member 410 can be a motor, an electric actuator, a rotary actuator, an electromagnetic drive structure, or other structures capable of outputting driving force. By simultaneously driving the first beam 310 and the second beam 320 with the drive member 410, the first beam 310 and the second beam 320 can rotate synchronously or in coordination, thereby causing the corresponding first segment 210 and second segment 220 to fold or unfold. Driving multiple structural movements with the same drive member 410 can also improve structural integration and reduce the number of drive structures.

[0154] In some embodiments, refer to Figure 10 and Figure 11 The drive mechanism 400 includes a drive member 410, which is configured to provide driving force to switch the folding steering wheel from an unfolded state to a folded state. It is understood that the drive member 410 in this embodiment is primarily used to provide driving force during the folding process. By actively driving the first beam 310 and the second beam 320 in the folding direction through the drive member 410, the first segment 210 and the second segment 220 can be retracted towards the periphery of the main body 100, thereby reducing the space occupied by the steering wheel when not in use.

[0155] In some embodiments, refer to Figure 10 and Figure 11 An elastic element 700 is disposed between the first pivot 500 and the second pivot 600. The elastic element 700 is configured to drive the first pivot 500 and the second pivot 600 to rotate in opposite directions, thereby switching the folding steering wheel from a folded state to an unfolded state. Exemplarily, the elastic element 700 can be a torsion spring, an elastic sheet, an elastic rod, a coil spring, or other structures capable of storing elastic potential energy. By distributing the elastic element 700 between the first pivot 500 and the second pivot 600, energy can be stored in the elastic element 700 during the folding process, and the elastic potential energy can be released through the elastic element 700 after the restriction is lifted, thereby driving the first pivot 500 and the second pivot 600 to rotate in opposite directions, thereby unfolding the first beam 310 and the second beam 320. Furthermore, by utilizing the elastic element 700 to achieve the unfolding action, it is also beneficial to reduce the power output requirement of the drive unit 410 during the unfolding phase.

[0156] In some embodiments, refer to Figure 10 and Figure 11The drive mechanism 400 includes a first connecting part 420 and a second connecting part 430 that are movable relative to each other. At least one of the first connecting part 420 and the second connecting part 430 is a flexible structure. The first connecting part 420 and the second connecting part 430 are sleeved together along the axial direction. The first connecting part 420 is connected to the first rotating shaft 500, and the second connecting part 430 is connected to the second rotating shaft 600. The drive member 410 is used to drive the first connecting part 420 and the second connecting part 430 to move relative to each other, so as to drive the first rotating shaft 500 and the second rotating shaft 600 to rotate relative to each other, so as to switch the folding steering wheel from the unfolded state to the folded state.

[0157] For example, the flexible structure can be an elastic sleeve, flexible rope, flexible sheet, elastic ring, corrugated structure, or other structure capable of elastic deformation. By axially sleeved together, the first connecting portion 420 and the second connecting portion 430 can form a mating relationship in the axial direction. When the driving member 410 drives the first connecting portion 420 and the second connecting portion 430 to move relative to each other, the flexible structure can drive the first rotating shaft 500 and the second rotating shaft 600 to rotate relative to each other.

[0158] For example, both the first connecting portion 420 and the second connecting portion 430 can be flexible structures. Specifically, the first connecting portion 420 can be a flexible rope, and the second connecting portion 430 can be a flexible sleeve, with the flexible rope movably passing through the flexible sleeve along the axial direction. Exemplarily, the flexible rope can be a steel wire rope, fiber rope, metal cable, or other flexible structure capable of transmitting tensile force; the flexible sleeve can be an elastic sleeve, a flexible guide tube, or other structure capable of guiding the flexible rope.

[0159] In some embodiments, refer to Figure 10 and Figure 11 The flexible rope is connected to the first rotating shaft 500, and the flexible sleeve is connected to the second rotating shaft 600. When the driving member 410 drives the flexible rope to extend or retract relative to the flexible sleeve, a relative displacement is generated between the flexible rope and the flexible sleeve. This displacement, through the force between the first connecting part 420 and the second connecting part 430, causes the first rotating shaft 500 and the second rotating shaft 600 to rotate relative to each other. Since the first rotating shaft 500 and the second rotating shaft 600 are respectively connected to different crossbeams 300, their relative rotation causes the first beam 310 and the second beam 320 to move in the folding direction, thereby switching the folding steering wheel from the unfolded state to the folded state.

[0160] In some embodiments, the first pivot 500 and the second pivot 600 can rotate in opposite directions under the pulling action of the flexible rope. For example, when the first pivot 500 rotates clockwise, the second pivot 600 can rotate counterclockwise, thereby causing the first beam 310 and the second beam 320 to retract towards the two sides of the main body 100, respectively. By rotating in opposite directions, it is beneficial to reduce the possibility of spatial interference between the first beam 310 and the second beam 320 during the folding process.

[0161] In some embodiments, when the drive member 410 stops driving, releases driving, or reverses driving, the elastic member 700 disposed between the first rotating shaft 500 and the second rotating shaft 600 can release elastic potential energy to drive the first rotating shaft 500 and the second rotating shaft 600 to rotate in opposite directions, thereby causing the first beam 310 and the second beam 320 to move in the unfolding direction, switching the folding steering wheel from the folded state to the unfolded state. By using the elastic member 700 to drive the unfolding action, it is beneficial to reduce the driving load during the unfolding process and improve the smoothness of the folding and unfolding switching process.

[0162] In some embodiments, a guide structure, a lubrication structure, or a limiting structure may also be provided between the flexible rope and the flexible sleeve. For example, a low-friction guide layer may be provided inside the flexible sleeve to help reduce the frictional resistance when the flexible rope moves relative to the flexible sleeve; a limiting element may also be provided to limit the maximum extension and retraction stroke of the flexible rope relative to the flexible sleeve, thereby helping to control the folding angle of the folding steering wheel.

[0163] It should be understood that since at least one of the first connecting portion 420 and the second connecting portion 430 is a flexible structure, the transmission path between the first connecting portion 420 and the second connecting portion 430 can be adaptively arranged according to the internal space of the main body 100. For example, the flexible structure can be bent, wound, or deformed, so that the drive member 410 does not have to be arranged in a straight line with the first connecting portion 420 and the second connecting portion 430.

[0164] Based on the above structural configuration, the drive component 410 can be positioned in different locations according to the installation space inside the main body 100. For example, the drive component 410 can be positioned in the central area, offset area, or other locations with installation space in the main body 100, and the first connecting part 420 and the second connecting part 430 can be connected to the corresponding rotating shaft by bending or bypassing, thereby improving the flexibility of the arrangement of the internal space of the main body 100.

[0165] By forming a non-linear transmission path through a flexible structure, it is also possible to avoid other structures inside the main body 100, such as airbags, control circuits, wiring harnesses or mounting brackets, thereby improving the overall utilization rate and structural integration of the internal space of the main body 100.

[0166] In some embodiments, refer to Figure 10 and Figure 11 The elastic element 700 is a torsion spring disposed between the first rotating shaft 500 and the second rotating shaft 600. Exemplarily, the torsion spring can be sleeved on the outer periphery of the first rotating shaft 500 or disposed in the annular region between the first rotating shaft 500 and the second rotating shaft 600. By employing a torsion spring structure, the torsion spring can generate torsional deformation during the relative rotation of the first rotating shaft 500 and the second rotating shaft 600, thereby storing elastic potential energy, and driving the first rotating shaft 500 and the second rotating shaft 600 to move in opposite directions upon release. Furthermore, compared to a partially linear elastic element 700, the torsion spring structure is advantageous for adapting to the rotational motion of rotating shaft-like structures.

[0167] In some embodiments, refer to Figure 12 and Figure 13 The drive mechanism 400 includes a gear set 440 connected between the drive member 410 and the first rotating shaft 500 and the second rotating shaft 600. The drive member 410 is configured to drive the gear set 440 to rotate the first rotating shaft 500 and the second rotating shaft 600 relative to each other, thereby switching the folding steering wheel between a folded state and an unfolded state. Exemplarily, the gear set 440 may include spur gears, helical gears, bevel gears, planetary gear sets 440, or other gear structures capable of transmission. Power transmission via the gear set 440 allows the power output from the drive member 410 to be transmitted to the first rotating shaft 500 and the second rotating shaft 600 respectively, thereby achieving synchronous or reverse movement of the corresponding structures. Furthermore, gear meshing transmission can also help improve the stability and transmission accuracy of power transmission.

[0168] In some embodiments, refer to Figure 9 and Figure 14 The drive mechanism 400 includes a transmission pulley set 450 and a belt 460 connected between the drive member 410 and the first rotating shaft 500 and the second rotating shaft 600. The drive member 410 is configured to drive the belt 460 to rotate the transmission pulley set 450, thereby causing the first rotating shaft 500 and the second rotating shaft 600 to rotate relative to each other, so that the folding steering wheel can switch between a folded state and an unfolded state. Exemplarily, the belt 460 can be a synchronous belt, a rubber belt, a composite fiber belt, or other flexible transmission structure. Through the cooperation of the belt 460 and the transmission pulley set 450, the power output by the drive member 410 can be transmitted to the first rotating shaft 500 and the second rotating shaft 600 through a flexible transmission path. Furthermore, the belt 460 transmission structure can also help reduce vibration and noise during the transmission process.

[0169] In some embodiments, refer to Figure 9 and Figure 15The drive mechanism 400 includes a linkage mechanism 470 connected between the drive member 410 and the first rotating shaft 500 and the second rotating shaft 600. The drive member 410 is configured to drive the linkage mechanism 470 to drive the first rotating shaft 500 and the second rotating shaft 600 to rotate relative to each other, thereby switching the folding steering wheel between a folded state and an unfolded state. Exemplarily, the linkage mechanism 470 may include a rocker arm, a crank mechanism, or other linkage transmission structure. Through motion transmission via the linkage mechanism 470, the linear or rotational motion output by the drive member 410 can be converted into relative rotation between the first rotating shaft 500 and the second rotating shaft 600.

[0170] According to the second aspect of this disclosure, referring to Figure 1 and Figure 16 A steering system is provided, including the folding steering wheel of the above embodiments. This steering system possesses all the beneficial effects of the folding steering wheel described above, which will not be elaborated further herein.

[0171] In some embodiments, the steering system can be a steer-by-wire system. Exemplarily, the steering control between the folding steering wheel and the vehicle's steering actuator can be achieved via electrical signals, rather than through rigid transmission via a mechanical steering shaft. By incorporating a folding steering wheel into a steer-by-wire system, the limitations imposed by traditional mechanical steering structures on the steering wheel's range of motion can be reduced, thereby improving the flexibility of the folding steering wheel's arrangement when switching between folded and unfolded states.

[0172] In some embodiments, the steer-by-wire system may further include a steering controller, a steering actuator, a steering angle sensor, and a feedback mechanism. The steering controller can control the steering actuator to operate based on the folding steering wheel's operating signal, thereby achieving vehicle steering; the feedback mechanism can provide steering feedback force to the folding steering wheel, thus improving the driver's steering perception during operation.

[0173] It should be understood that, in addition to steer-by-wire systems, the steering system can be other types of steering systems. For example, the steering system can also be a mechanical steering system, an electric power steering system, or a hydraulic power steering system, etc., and this disclosure does not limit it.

[0174] According to the third aspect of this disclosure, referring to Figure 17 The present invention provides a vehicle including a folding steering wheel as described in the above embodiments, or including a steering system as described in the above embodiments. The vehicle possesses all the beneficial effects of the aforementioned folding steering wheel or steering system, which will not be elaborated further herein.

[0175] The vehicle may be a gasoline-powered vehicle, a plug-in hybrid electric vehicle, or a new energy vehicle, etc., and this disclosure does not make any specific restrictions.

[0176] In some embodiments, a storage structure is also included, the storage structure having a storage opening and a receiving cavity communicating with the storage opening, wherein the folding steering wheel is at least partially received in the receiving cavity via the storage opening in the folded state.

[0177] Exemplarily, the storage structure may be located in the front bulkhead area of ​​the vehicle, the dashboard area, the center console area, the steering system mounting area, or other areas suitable for arranging a folding steering wheel, without specific limitation herein. A storage opening may be formed on the driver-facing side of the storage structure, and a receiving cavity may be located inside the storage structure and communicate with the storage opening, thereby providing storage space for the folding steering wheel.

[0178] The phrase "at least partially housed within the receiving cavity" can be understood as the entire folding steering wheel entering the receiving cavity, or it can be understood as a portion of the folding steering wheel's structure being located within the receiving cavity while another portion is located outside the receiving cavity. For example, the main body 100, the crossbeam 300, and the wheel rim 200 may all be located within the receiving cavity; or the main body 100 may be located outside the receiving cavity while the wheel rim 200 and the crossbeam 300 are located within the receiving cavity; or other arrangements that enable the folding steering wheel to be stored, which are not limited in this disclosure.

[0179] In some embodiments, the shape of the storage opening can be circular, elliptical, rectangular, oblong, irregularly shaped, or other shapes suitable for the passage of a folding steering wheel; the receiving cavity can be a cavity structure adapted to the shape of the folding steering wheel, or it can be a receiving structure with reserved installation space, and this disclosure does not specifically limit it.

[0180] By incorporating a storage structure, a storage opening, and a cavity connected to the opening, the folding steering wheel can be at least partially concealed within the cavity after folding, thus further reducing its impact on the driver's workspace. This is particularly beneficial in scenarios involving autonomous driving, parking and resting, or other situations where steering wheel operation is not required, as it frees up space in front of the driver and improves the flexibility of vehicle interior space utilization.

[0181] By incorporating the crossbeam 300 into the folding mechanism, in the folded state, the crossbeam 300 and the wheel rim 200 can converge together towards the main body 100, thereby reducing the overall radial and outer contour dimensions of the folding steering wheel. Since the folding steering wheel needs to pass through a storage opening when entering the receiving cavity, reducing the outer contour dimension of the folding steering wheel helps to correspondingly reduce the opening size of the storage opening. Reducing the size of the storage opening helps to decrease the space occupied by the storage structure in the vehicle's layout, and also helps to minimize the impact of the storage opening on the integrity of the dashboard, trim panels, or other interior structures, thus facilitating the integrated layout of the vehicle's interior space.

[0182] In the description of this application, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of technical features indicated. Therefore, a feature defined as "first" or "second" may explicitly or implicitly include one or more features. In the description of this application, "multiple" means two or more, unless otherwise explicitly specified.

[0183] 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.

[0184] The embodiments, implementation methods, and related technical features of this application can be combined and substituted for each other without conflict.

[0185] The above are merely preferred embodiments of this application and are not intended to limit this application in any way. Any simple modifications, equivalent changes, and alterations made to the above embodiments based on the technical essence of this application without departing from the scope of the technical solution of this application shall still fall within the scope of the technical solution of this application.

Claims

1. A folding steering wheel, characterized in that, include: main body; The rim is at least partially disposed around the body; as well as A crossbeam is connected between the wheel rim and the main body. The folding steering wheel has a folded state in which at least a portion of the crossbeam and at least a portion of the wheel rim are folded relative to the main body.

2. The folding steering wheel according to claim 1, characterized in that, The folding steering wheel also has an unfolded state, and at least a portion of the crossbeam can move relative to the main body to drive at least a portion of the wheel rim to move together, so that the folding steering wheel can switch between the folded state and the unfolded state.

3. The folding steering wheel according to claim 2, characterized in that, The rim includes a first segment and a second segment, which are respectively movably arranged relative to the main body and configured to fold toward a direction away from the driver's seat.

4. The folding steering wheel according to claim 3, characterized in that, In the folded state, the first segment is configured to be located below the second segment along the vehicle body height direction.

5. The folding steering wheel according to claim 3, characterized in that, The crossbeam includes a first beam and a second beam that are rotatably connected to the main body. The first segment is connected to the first beam and rotates synchronously with the first beam. The second segment is connected to the second beam and rotates synchronously with the second beam.

6. The folding steering wheel according to claim 5, characterized in that, In the unfolded state, the projections of the first beam and the second beam along the axis of the main body at least partially overlap; And / or, in the unfolded state, at least a portion of the first beam is located on the side of the second beam away from the user.

7. The folding steering wheel according to claim 6, characterized in that, The first beam includes a first mating part and a second mating part, wherein the thickness of the first mating part along the axial direction of the main body is less than the thickness of the second mating part along the axial direction of the main body; the second beam includes a third mating part and a fourth mating part, wherein the thickness of the third mating part along the axial direction of the main body is greater than the thickness of the fourth mating part along the axial direction of the main body. In the unfolded state, the first mating part and the third mating part are arranged opposite each other along the main body axis, and the second mating part and the fourth mating part are arranged opposite each other along the main body axis.

8. The folding steering wheel according to claim 6, characterized in that, The first beam has a first mating surface, and the second beam has a second mating surface. In the unfolded state, the first mating surface and the second mating surface are arranged opposite to each other along the axial direction of the main body, wherein: Both the first mating surface and the second mating surface are inclined relative to the axial direction of the main body; And / or, in the unfolded state, the first mating surface and the second mating surface are at least partially in contact.

9. The folding steering wheel according to claim 6, characterized in that, In the unfolded state, the first beam has a first exposed surface facing the user, and the second beam has a second exposed surface facing the user. The area of ​​the second exposed surface is larger than the area of ​​the first exposed surface, and the second exposed surface is provided with an operating area for user operation. And / or, at least part of the second beam is configured to be closer to the user than the first beam, and the surface of the second beam facing the user is provided with an operating area for user operation.

10. The folding steering wheel according to claim 5, characterized in that, The first beam is rotatably disposed relative to the main body along a first rotation axis, and the second beam is rotatably disposed relative to the main body along a second rotation axis; wherein... The first rotation axis and the second rotation axis are parallel or coincident; And / or, the first rotation axis and the second rotation axis extend along the width direction of the vehicle.

11. The folding steering wheel according to any one of claims 1 to 10, characterized in that, The number of crossbeams is two, and the two crossbeams are located on opposite sides of the main body along the width direction of the vehicle.

12. The folding steering wheel according to any one of claims 1 to 10, characterized in that, It also includes a drive mechanism for driving the crossbeam and the wheel rim to fold relative to the main body.

13. A steering system, characterized in that, The folding steering wheel includes any one of claims 1 to 12.

14. A vehicle, characterized in that, It includes a folding steering wheel as described in any one of claims 1 to 12, or a steering system as described in claim 13.

15. The vehicle according to claim 14, characterized in that, It also includes a storage structure having a storage opening and a receiving cavity communicating with the storage opening, wherein the folding steering wheel is at least partially received in the receiving cavity via the storage opening in the folded state.

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