Tail wing device, control method of tail wing device and vehicle

Abstract

This application discloses a tail wing device, a control method for the tail wing device, and a vehicle. The tail wing device includes a wing body, a base, and a drive mechanism. One end of the base is rotatably connected to the wing body, and the other end of the base is adapted to be connected to a trunk lid. The base has a receiving cavity. The drive mechanism is located within the receiving cavity and is connected to the wing body, wherein the drive mechanism is used to drive the wing body to rotate. Using the technical solution of this application, the angle of the wing body can be flexibly adjusted to ensure effective improvement in vehicle stability during driving.

Description

Technical Field

[0001] This application relates to the field of vehicle technology, specifically to a tail wing device, a control method for the tail wing device, and a vehicle. Background Technology

[0002] To reduce drag on vehicles, an increasing number of vehicles are equipped with rear wings. According to aerodynamic principles, when a vehicle is traveling at high speed, the rear wing generates traction force on the ground, which can counteract some of the lift, effectively controlling the vehicle's upward movement and allowing it to stay close to the road surface. In other words, the rear wing effectively reduces and overcomes the impact of air resistance on vehicle operation, contributing to improved vehicle stability.

[0003] In related technologies, vehicle rear wings are generally one-piece structures. Users can only raise the rear wing at a fixed height and angle, and its posture cannot be adjusted after raising. However, a fixed-angle rear wing cannot meet the requirements for reducing wind resistance at different vehicle speeds. In other words, the drag reduction effect of a vehicle rear wing is limited and cannot ensure the stability of the vehicle during driving at different speeds. Summary of the Invention

[0004] In view of this, this application provides a tail wing device, a control method for the tail wing device, and a vehicle, which can flexibly adjust the angle of the wing body to ensure effective improvement of vehicle stability during driving.

[0005] On one hand, embodiments of this application provide a tail fin device, which includes a wing body, a base, and a drive mechanism;

[0006] One end of the base is rotatably connected to the wing body, and the other end of the base is adapted to be connected to the trunk lid; the base has a receiving cavity.

[0007] The drive mechanism is located within the receiving cavity and is connected to the wing body, wherein the drive mechanism is used to drive the wing body to rotate.

[0008] Optionally, the base includes a seat and a support. The seat is adapted to be installed on the trunk lid. One end of the support is connected to the seat and the other end is rotatably connected to the wing. The seat has a first cavity and the support has a second cavity. The first cavity and the second cavity communicate to form the receiving cavity.

[0009] The drive mechanism includes a drive assembly and a linkage assembly. The drive assembly is located in the first cavity, and the linkage assembly is located in the second cavity. The two ends of the linkage assembly are respectively connected to the drive assembly and the wing body.

[0010] Optionally, the drive assembly includes a motor, a threaded rod, a positioning block, and a slider;

[0011] The motor and the positioning block are respectively installed in the first cavity, and the motor and the positioning block are arranged opposite to each other in a first direction, wherein the first direction is the length direction of the vehicle body;

[0012] The two ends of the threaded rod are respectively connected to the output end of the motor and the positioning block, and the threaded rod extends along the first direction;

[0013] The slider is sleeved on the threaded rod and is rotatably connected to the end of the connecting rod assembly away from the wing body;

[0014] When the motor is started, the linkage assembly can move along the first direction with the slider, so that the linkage assembly drives the wing to rotate around the connection between the wing and the support.

[0015] Optionally, the wing body has a first groove on the side facing the seat body, the opening of the first groove faces the seat body, and the first groove includes a first groove wall and a second groove wall disposed opposite each other in a second direction, wherein the second direction is the width direction of the vehicle body;

[0016] The end of the support member away from the base member extends into the first groove through the opening of the first groove and is rotatably connected to the first groove wall and the second groove wall by a pin.

[0017] Optionally, the second cavity includes a first sidewall and a second sidewall disposed opposite to each other in a second direction, wherein the second direction is the width direction of the vehicle body;

[0018] The linkage assembly is slidably engaged with the first sidewall or the second sidewall via a guide structure, so that the linkage assembly drives the wing body to rotate.

[0019] Optionally, the guiding structure includes a guide groove and a guide block;

[0020] The guide groove is provided on the first sidewall or the second sidewall, and the connecting rod assembly is provided with the guide block; or, the guide block is provided on the first sidewall or the second sidewall, and the connecting rod assembly is provided with the guide groove.

[0021] The guide groove has an arc-shaped cross-section that protrudes away from the connection between the support and the wing.

[0022] Optionally, the edge of the windward side of the wing is corrugated.

[0023] On the other hand, embodiments of this application also provide a control method for a tail fin device, the control method for the tail fin device being applied to any of the tail fin devices described above, the method comprising:

[0024] Based on the current vehicle speed, determine the target vehicle speed range corresponding to the current vehicle speed;

[0025] Determine the target angle based on the target vehicle speed range;

[0026] Based on the target angle, a first rotation command is generated, wherein the first rotation command is used to control the drive mechanism to drive the wing body to rotate to the target angle.

[0027] Optionally, determining the target angle based on the target vehicle speed range includes:

[0028] Obtain the current wind pressure value, and based on the current wind pressure value, determine the target wind pressure range corresponding to the current wind pressure value;

[0029] The target angle is determined based on the target wind pressure range and the target vehicle speed range.

[0030] On the other hand, this application also provides a vehicle that includes the tail wing device described in any of the above claims.

[0031] The tail wing device provided in this application embodiment includes a wing body, a base, and a drive mechanism. One end of the base is rotatably connected to the wing body, allowing the wing body to rotate relative to the base. The other end of the base is adapted to connect to a trunk lid, thus allowing the tail wing device to be mounted on the trunk lid. The drive mechanism is located within a receiving cavity in the base, which protects the drive mechanism. Since the drive mechanism drives the wing body to rotate, the wing body can rotate under the drive mechanism to change its angle. In other words, the tail wing device provided in this application embodiment can flexibly adjust the angle of the wing body to effectively improve the stability of the vehicle during driving. Attached Figure Description

[0032] 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 accompanying 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.

[0033] Figure 1 This is a cross-sectional schematic diagram of a tail fin device provided in an embodiment of this application;

[0034] Figure 2 This is a schematic diagram of the structure of a tail fin device provided in an embodiment of this application;

[0035] Figure 3 This is a top view schematic diagram of the wing body in a tail fin device provided in an embodiment of this application;

[0036] Figure 4 This is a schematic diagram of the structure of the base in a tail fin device provided in an embodiment of this application;

[0037] Figure 5 This is a schematic diagram of the side wall and guide structure of the support member in a tail fin device provided in an embodiment of this application;

[0038] Figure 6 This is a schematic diagram of the structure of a tail fin device provided in an embodiment of this application;

[0039] Figure 7 This is a flowchart of a control method for a tail fin device provided in an embodiment of this application.

[0040] Figure label:

[0041] 100. Wing body; 110. First groove; 120. Windward side; 130. Windward side; 111. First groove wall; 112. Second groove wall; 113. Stop block;

[0042] 200, base; 210, receiving cavity; 220, seat component; 230, support component; 221, first cavity; 231, second cavity; 232, first side wall; 233, second side wall; 234, through hole;

[0043] 300. Drive mechanism; 310. Drive assembly; 320. Linkage assembly; 311. Motor; 312. Threaded rod; 313. Positioning block; 314. Slider; 315. Bracket; 321. First link; 322. Second link;

[0044] 400, Pin;

[0045] 500, guide structure; 510, guide groove; 520, guide block.

[0046] The accompanying drawings have illustrated specific embodiments of this application, which will be described in more detail below. These drawings and descriptions are not intended to limit the scope of the concept in any way, but rather to illustrate the concept of this application to those skilled in the art through reference to specific embodiments. Detailed Implementation

[0047] 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 some embodiments of this application, not all embodiments. Based on the embodiments of this application, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of this application.

[0048] In the embodiments of this application, directional terms such as "upper," "lower," and "side" are generally used in the following ways: Figure 1 The relative positions shown are based on established rules, and these directional terms are used merely to more clearly describe the structures and their relationships, not to describe absolute positions. Positions may change when the product is placed in different orientations; for example, "up" and "down" may be interchanged. Unless otherwise defined, all technical terms used in the embodiments of this application have the same meaning as commonly understood by those skilled in the art.

[0049] To make the technical solutions and advantages of this application clearer, the embodiments of this application will be described in further detail below with reference to the accompanying drawings.

[0050] Combination Figure 1 and Figure 2 As shown, this application embodiment provides a tail wing device, which includes a wing body 100, a base 200, and a drive mechanism 300. One end of the base 200 is rotatably connected to the wing body 100, so that the wing body 100 can rotate relative to the base. The other end of the base 200 is adapted to be connected to a trunk lid (not shown in the figure), so that the tail wing device can be mounted on the trunk lid.

[0051] The base 200 has a receiving cavity 210. The drive mechanism 300 is located within the receiving cavity 210, thus the receiving cavity 210 can better protect the drive mechanism 300 and prevent damage to it. The drive mechanism 300 is connected to the wing 100, and the drive mechanism 300 is used to drive the wing 100 to rotate. It is understood that the wing 100 can rotate under the drive of the drive mechanism 300 to change the angle of the wing 100. That is to say, the tail wing device provided in this application embodiment can flexibly adjust the angle of the wing 100 to meet the drag reduction requirements at different vehicle speeds, thereby ensuring effective improvement in the stability of the vehicle during driving.

[0052] The following is in conjunction with the appendix Figures 1 to 6 The details and functions of the tail fin device provided in the embodiments of this application will be described in more specific and detailed manner.

[0053] Combination Figure 1 and Figure 2As shown, in some embodiments, the base 200 includes a seat member 220 and a support member 230. The seat member 220 is adapted to be installed on the trunk lid. One end of the support member 230 is connected to the seat member 220, and the other end is rotatably connected to the wing 100. The seat member 220 has a first cavity 221, and the support member 230 has a second cavity 231. The first cavity 221 and the second cavity 231 communicate to form a receiving cavity 210. The drive mechanism 300 includes a drive assembly 310 and a linkage assembly 320. The drive assembly 310 is located in the first cavity 221, and the linkage assembly 320 is located in the second cavity 231. Both ends of the linkage assembly 320 are connected to the drive assembly 310 and the wing 100, respectively. With this configuration, when the drive assembly 310 is activated, the linkage assembly 320 can drive the wing 100 to rotate, thereby flexibly adjusting the angle of the wing 100. The first cavity 221 and the second cavity 231 can protect the drive assembly 310 and the connecting rod assembly 320 respectively. At the same time, they can also improve the overall aesthetics of the tail fin device.

[0054] like Figure 2 As shown, in some embodiments, the tail fin assembly includes two bases 200, which are spaced apart and distributed relative to each other. This allows the bases 200 to provide more stable support for the wing body 100.

[0055] like Figure 1 As shown, in some embodiments, the drive assembly 310 includes a motor 311, a threaded rod 312, a positioning block 313, and a slider 314. The motor 311 and the positioning block 313 are respectively installed within the first cavity 221, and are positioned opposite each other in a first direction, which is the length direction of the vehicle body. It should be noted that the motor 311 and the positioning block 313 can be installed on the inner wall of the first cavity 221 using bolts or other fasteners, and their positions remain fixed.

[0056] The two ends of the threaded rod 312 are connected to the output end of the motor 311 and the positioning block 313, respectively, and the threaded rod 312 extends along a first direction. The slider 314 is sleeved on the threaded rod 312 and is rotatably connected to the end of the connecting rod assembly 320 away from the wing body 100. With this configuration, when the threaded rod 312 rotates, it can drive the slider 314 to move towards or away from the positioning block 313.

[0057] When the motor 311 starts, the connecting rod assembly 320 can move along the first direction with the slider 314, so that the connecting rod assembly 320 drives the wing 100 to rotate around the connection point between the wing 100 and the support member 230. In some embodiments, a bracket 315 is connected to the slider 314, one end of the connecting rod assembly 320 is hinged to the bracket 315, and the other end is fixedly connected to the wing 100. It should be understood that when the slider 314 moves, it can drive the connecting rod assembly 320 to rotate around the hinge point between the connecting rod assembly 320 and the bracket 315, thereby driving the wing 100 to rotate.

[0058] like Figure 6 As shown, in some embodiments, the wing 100 has a first groove 110 on the side facing the seat, with the opening of the first groove 110 facing the seat member 220. The first groove 110 includes a first groove wall 111 and a second groove wall 112 disposed opposite to each other in a second direction, wherein the second direction is the width direction of the vehicle body. The end of the support member 230 away from the seat member 220 extends into the first groove 110 through the opening of the first groove 110 and is rotatably connected to the first groove wall 111 and the second groove wall 112 by a pin 400. The connection method of the pin 400 allows the wing 100 to rotate relative to the support member 230. It should be noted that the first groove 110 can also better protect one end of the support member 230.

[0059] like Figure 6 As shown, in some embodiments, a stop 113 is circumferentially connected to the top of the first groove 110. The side of the stop 113 that is not connected to the top of the first groove 110 extends toward the support member 230 and abuts against the outer wall of the support member 230. This prevents external dust and other impurities from entering the first groove 110 through the opening and affecting the relative rotation between the support member 230 and the wing 100.

[0060] like Figure 4 As shown, in some embodiments, the second cavity 231 includes a first sidewall 232 and a second sidewall 233 disposed opposite each other in a second direction, wherein the second direction is the width direction of the vehicle body. The linkage assembly 320 slides with the first sidewall 232 or the second sidewall 233 through a guide structure 500, so that the linkage assembly 320 drives the wing 100 to rotate. By providing the guide structure 500, the rotation of the wing 100 can be controlled more flexibly.

[0061] Combination Figure 2 and Figure 4 As shown, in some embodiments, the outer sides of the first sidewall 232 and the second sidewall 233 are both curved surfaces. It should be noted that the curved surfaces can also have a certain drag reduction effect, thereby further improving the drag reduction effect of the tail fin device.

[0062] Combination Figure 1 and Figure 5 As shown, in some embodiments, the guide structure 500 includes a guide groove 510 and a guide block 520. The guide groove 510 is provided on the first sidewall 232 or the second sidewall 233, and the guide block 520 is provided on the connecting rod assembly 320. Alternatively, the guide block 520 is provided on the first sidewall 232 or the second sidewall 233, and the guide groove 510 is provided on the connecting rod assembly 320. The guide groove 510 has an arc-shaped cross-section, with the arc protruding away from the connection point between the support member 230 and the wing body 100. With this configuration, when the slider 314 moves, it can drive the connecting rod assembly 320 to rotate and move along the extending direction of the guide groove 510. Figure 1 As shown, when the slider 314 moves toward the positioning block 313, the connecting rod assembly 320 can rotate relative to the slider 314 and move along the extension direction of the guide groove 510. This allows the end of the wing 100 connected to the connecting rod assembly 320 to rotate upwards around the end of the wing 100 connected to the support member 230, thereby changing the angle of the wing 100. It can be understood that the faster the vehicle speed, the further away the end of the wing 100 connected to the connecting rod assembly 320 is from the seat member 220.

[0063] like Figure 4 As shown, in some embodiments, the second cavity 231 has a through hole 234 on the side facing the wing 100, and one end of the connecting rod assembly 320 extends through the through hole 234 and is connected to the wing 100.

[0064] like Figure 1 As shown, in some embodiments, the linkage assembly 320 includes a first linkage 321 and a second linkage 322. One end of the first linkage 321 is rotatably connected to the slider 314, and the other end of the first linkage 321 is fixedly connected to the second linkage 322 via a guide block 520. The end of the second linkage 322 not connected to the first linkage 321 protrudes through the through hole 234 and is connected to the wing 100. The first linkage 321 and the second linkage 322 form a predetermined angle. This allows for reasonable avoidance of other components within the second cavity 231.

[0065] like Figure 3 As shown, in some embodiments, the edge of the windward side 120 of the wing 100 is corrugated. This configuration can change the thickness of the windward side 120 of the wing 100, and the corrugated edge can generate a favorable vortex in the windward side 120, thereby better reducing wind resistance and achieving a better drag reduction effect.

[0066] like Figure 3As shown, in some embodiments, the edge of the windward side 120 of the wing 100 is sinusoidal. That is, from a top-view perspective, the edge of the windward side 120 of the wing 100 has a sinusoidal shape. This configuration achieves better drag reduction.

[0067] like Figure 3 As shown, in some embodiments, the wavelength and amplitude of the sinusoidal curve are correlated with the length dimension of the airfoil 100. Therefore, the shape of the sinusoidal curve can be adjusted according to different airfoil 100 dimensions to achieve better drag reduction.

[0068] like Figure 3 As shown, in some embodiments, the wavelength of the sinusoidal curve is 0.01 to 0.5 times the length of the wing 100, and the amplitude of the sinusoidal curve is less than 0.1 times the length of the wing 100. Figure 3 H1 shown in the diagram represents the length dimension of the wing 100. This configuration ensures that the wing 100 achieves optimal drag reduction.

[0069] On the other hand, such as Figure 7 As shown, this application embodiment also provides a control method for a tail wing device. The control method for the tail wing device is applied to the tail wing device described in any one of the above embodiments of this application. It should be noted that the control method for the tail wing device can be executed by the vehicle's controller. The control method for the tail wing device includes the following steps 101 to 103.

[0070] In step 101, the controller determines the target speed range corresponding to the current vehicle speed based on the current vehicle speed.

[0071] It should be noted that the target vehicle speed range can be pre-stored in the controller. The current vehicle speed can be determined based on the vehicle speed data measured by the vehicle speed sensor.

[0072] In step 102, the controller determines the target angle based on the target vehicle speed range.

[0073] It should be noted that the target angle is the angle formed between the wing body 100 and the ground.

[0074] In step 103, the controller generates a first rotation command based on the target angle. This first rotation command controls the drive mechanism 300 to drive the wing body 100 to rotate to the target angle. This allows for flexible and precise adjustment of the wing body 100's angle according to vehicle speed, enabling it to meet drag reduction requirements at different speeds. It should be noted that the controller and motor 311 are electrically connected, allowing for signal or command transmission between them.

[0075] It is understandable that the higher the current vehicle speed, the larger the angle between the wing body 100 and the ground, that is, the greater the distance between the tail side 130 of the wing body 100 and the ground is than the distance between the windward side 120 of the wing body 100 and the ground, thus achieving a better drag reduction effect.

[0076] In some embodiments, determining the target angle based on the target vehicle speed range includes: obtaining the current wind pressure value; determining the target wind pressure range corresponding to the current wind pressure value; and determining the target angle based on the target wind pressure range and the target vehicle speed range. It should be noted that determining the target angle based on both the target wind pressure range and the target vehicle speed range allows for more precise adjustment of the wing body 100's angle, enabling the wing body 100 to achieve optimal drag reduction.

[0077] On the other hand, embodiments of this application also provide a vehicle, which includes the tail wing device described above. Since the angle of the wing body 100 in the tail wing device can be flexibly adjusted, the wing body 100 can meet the drag reduction requirements at different vehicle speeds, so that the wing body 100 achieves the best drag reduction effect, while also ensuring that the wing body 100 has sufficient downforce, thereby ensuring effective improvement in the stability of the vehicle during driving.

[0078] In some embodiments, the vehicle also includes a trunk lid with a recess in which the seat 220 is located. This arrangement not only facilitates the storage of the rear wing device but also enhances the overall aesthetics of the vehicle.

[0079] Other embodiments of this application will readily occur to those skilled in the art upon consideration of the specification and practice of the application disclosed herein. This application is intended to cover any variations, uses, or adaptations of this application that follow the general principles of this application and include common knowledge or customary techniques in the art not disclosed herein. The specification and examples are to be considered exemplary only.

[0080] It should be understood that this application is not limited to the precise structure described above and shown in the accompanying drawings, and various modifications and changes can be made without departing from its scope. The scope of this application is limited only by the appended claims.

Claims

1. A tail fin device, characterized in that, The tail fin assembly includes a wing body (100), a base (200), and a drive mechanism (300); One end of the base (200) is rotatably connected to the wing (100), and the other end of the base (200) is adapted to be connected to the trunk lid. The base (200) has a receiving cavity (210). The base (200) includes a seat member (220) and a support member (230). The seat member (220) is adapted to be installed on the trunk lid. One end of the support member (230) is connected to the seat member (220), and the other end is rotatably connected to the wing (100). The seat member (220) has a first cavity (221), and the support member (230) has a second cavity (231). The first cavity (221) and the second cavity (231) communicate to form the receiving cavity (210). The second cavity (231) includes a first sidewall (232) and a second sidewall (233) disposed opposite to each other in a second direction, wherein the second direction is the width direction of the vehicle body. The drive mechanism (300) is located within the receiving cavity (210) and is connected to the wing body (100). The drive mechanism (300) drives the wing body (100) to rotate. The drive mechanism (300) includes a drive assembly (310) and a linkage assembly (320). The drive assembly (310) is located within the first cavity (221), and the linkage assembly (320) is located within the second cavity (231). Both ends of the linkage assembly (320) are connected to the drive assembly (310) and the wing body (100), respectively. 0) The linkage assembly (320) slides between itself and the first sidewall (232) or the second sidewall (233) through a guide structure (500) to drive the wing body (100) to rotate; wherein, the drive assembly (310) includes a motor (311), a threaded rod (312), a positioning block (313), and a slider (314); the motor (311) and the positioning block (313) are respectively installed in the first cavity (221), and the motor (311) and the positioning block (313) are arranged opposite to each other in a first direction, wherein the first direction is the length direction of the vehicle body; the threaded rod ( The two ends of the threaded rod (312) are respectively connected to the output end of the motor (311) and the positioning block (313), and the threaded rod (312) extends along the first direction; the slider (314) is sleeved on the threaded rod (312) and is rotatably connected to the end of the connecting rod assembly (320) away from the wing body (100); wherein, when the motor (311) is started, the connecting rod assembly (320) can move along the first direction with the slider (314) so ​​that the connecting rod assembly (320) drives the wing body (100) to rotate around the connection between the wing body (100) and the support member (230); The guide structure (500) includes a guide groove (510) and a guide block (520); the guide groove (510) is provided on the first sidewall (232) or the second sidewall (233), and the guide block (520) is provided on the connecting rod assembly (320); or, the guide block (520) is provided on the first sidewall (232) or the second sidewall (233), and the guide groove (510) is provided on the connecting rod assembly (320); wherein the cross section of the guide groove (510) extends in an arc shape, and the arc shape protrudes in a direction away from the connection between the support member (230) and the wing body (100).

2. The tail fin device according to claim 1, characterized in that, The wing body (100) has a first groove (110) on the side facing the seat body, the opening of the first groove (110) faces the seat body (220), and the first groove (110) includes a first groove wall (111) and a second groove wall (112) disposed opposite to each other in the second direction. The end of the support member (230) away from the seat member (220) extends into the first groove (110) through the opening of the first groove (110) and is rotatably connected to the first groove wall (111) and the second groove wall (112) by a pin (400).

3. The tail fin device according to claim 1, characterized in that, The edge of the wing (100) on the windward side is corrugated.

4. A control method for a tail fin device, characterized in that, The control method for the tail fin device is applied to the tail fin device as described in any one of claims 1 to 3, the method comprising: Based on the current vehicle speed, determine the target vehicle speed range corresponding to the current vehicle speed; Determine the target angle based on the target vehicle speed range; Based on the target angle, a first rotation command is generated, wherein the first rotation command is used to control the drive mechanism (300) to drive the wing body (100) to rotate to the target angle.

5. The control method for the tail fin device according to claim 4, characterized in that, Based on the target vehicle speed range, the target angle is determined, including: Obtain the current wind pressure value, and based on the current wind pressure value, determine the target wind pressure range corresponding to the current wind pressure value; The target angle is determined based on the target wind pressure range and the target vehicle speed range.

6. A vehicle, characterized in that, The vehicle includes a tail wing device as described in any one of claims 1 to 3.

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