Variable rim control system, method and device and vehicle

Abstract

The invention provides a variable rim control system, method and device and a vehicle. The control system of the variable rim comprises the variable rim, a controller, a vehicle state sensor and a driving intention sensor, wherein the controller is electrically connected with the variable rim, the vehicle state sensor and the driving intention sensor; the variable rim comprises at least one rim cover plate, and the opening direction and the opening angle of the rim cover plate are adjustable; the vehicle state sensor is used for collecting driving state information of a vehicle; the driving intention sensor is used for collecting driving intention information of an operation part in the vehicle; and the controller is used for adjusting the opening direction and the opening angle of the rim cover plate to control the aerodynamic performance of the wheel based on the driving state information and the driving intention information. By means of the system, the aerodynamic performance of the rim can be changed, and the vehicle controllability is improved.

Description

Technical Field

[0001] The present application relates to the field of vehicles, and more specifically to a control system, method, device and vehicle for a variable wheel rim. Background Art

[0002] The rim is a high-speed rotating part of the car. During the driving process of the car, the form of the rim, such as the inner and outer opening area of ​​the rim, the rim shape, style and number of openings, etc., will affect the aerodynamic characteristics of the vehicle. Therefore, how to change the aerodynamic performance of the rim and improve the vehicle's handling has become a technical problem that needs to be solved urgently. Summary of the invention

[0003] The present application is proposed in view of the above problems. The present application provides a control system, method, device and vehicle for a variable wheel rim, which can change the aerodynamic performance of the wheel rim and improve the vehicle's handling.

[0004] According to a first aspect of the present application, a control method for a variable wheel rim is provided, wherein the control system comprises: a variable wheel rim, a controller, a vehicle state sensor, and a driving intention sensor, wherein the controller is electrically connected to the variable wheel rim, the vehicle state sensor, and the driving intention sensor, respectively;

[0005] The variable rim includes at least one rim cover plate, and the opening direction and opening angle of the rim cover plate are adjustable;

[0006] The vehicle state sensor is used to collect the driving state information of the vehicle;

[0007] The driving intention sensor is used to collect driving intention information of an operating component in the vehicle;

[0008] The controller is used to adjust the opening direction and opening angle of the rim cover based on the driving state information and the driving intention information to control the aerodynamic performance of the wheel.

[0009] In one embodiment of the present application, the variable rim also includes a rim body, a rim cover movable pair and a driving mechanism, the rim cover is movably connected to the rim body through the rim cover movable pair, and the rim cover at least partially covers the opening at the axial end of the rim body, and the rim cover movable pair is connected to the driving mechanism.

[0010] In one embodiment of the present application, the vehicle state sensor includes at least one of a rotation angle torque sensor, an accelerator pedal sensor, and a brake pedal sensor.

[0011] In one embodiment of the present application, the driving intention sensor includes at least one of a wheel speed sensor, a vehicle acceleration sensor, and a suspension state sensor.

[0012] According to a second aspect of the present application, a control method for a variable rim is provided, the control method comprising:

[0013] Controlling the opening direction of the rim cover in the variable rim based on the driving intention information and / or the driving state information of the vehicle;

[0014] After the wheel rim cover is opened, the opening angle of the wheel rim cover is adjusted based on the driving intention information and / or the driving state information of the vehicle.

[0015] In one embodiment of the present application, the opening direction of the rim cover includes a first direction and a second direction;

[0016] When the rim cover is opened to the first direction, air passes through the variable rim and flows to the inner side of the wheel;

[0017] When the rim cover is opened to the second direction, air passes through the variable rim and flows to the outside of the wheel; wherein the rolling direction of the wheel is the front of the vehicle.

[0018] In one embodiment of the present application, when the weight of the vehicle is less than a preset weight threshold or the ground adhesion coefficient is lower than a preset adhesion coefficient threshold, controlling the opening direction of the rim cover in the variable rim includes:

[0019] The rim covers of the left front wheel, the right front wheel, the left rear wheel and the right rear wheel of the vehicle are controlled to open to the second direction to increase the positive pressure of the wheels.

[0020] In one embodiment of the present application, when the driving state information is that the vehicle is nodding, the controlling the opening direction of the rim cover in the variable rim includes:

[0021] The rim covers of the left front wheel and the right front wheel of the vehicle are controlled to open to the first direction to reduce the positive pressure of the front wheels, and the rim covers of the left rear wheel and the right rear wheel of the vehicle are controlled to open to the second direction to increase the positive pressure of the rear wheels.

[0022] In one embodiment of the present application, when the driving state information is that the vehicle is head-up, controlling the opening direction of the rim cover in the variable rim includes:

[0023] The rim covers of the left front wheel and the right rear wheel of the vehicle are controlled to open to the second direction to increase the positive pressure of the front wheels, and the rim covers of the right front wheel and the left rear wheel of the vehicle are controlled to open to the first direction to reduce the positive pressure of the rear wheels.

[0024] In one embodiment of the present application, when the vehicle motion trend is corrected based on the driving intention information and / or the driving state information, controlling the opening direction of the rim cover in the variable rim includes:

[0025] Control the wheel rim covers of the left front wheel and the right rear wheel of the vehicle to open to the first direction at the same time, and control the wheel rim covers of the left rear wheel and the right front wheel of the vehicle to open to the second direction at the same time; or,

[0026] The rim covers of the left front wheel and the right rear wheel of the vehicle are controlled to open to the second direction at the same time, and the rim covers of the left rear wheel and the right front wheel of the vehicle are controlled to open to the first direction at the same time.

[0027] In one embodiment of the present application, when the vehicle increases the positive pressure and performs movement trend correction, controlling the opening direction of the rim cover in the variable rim includes:

[0028] The rim cover of any wheel of the vehicle is controlled to open to the first direction or the second direction to correct the posture of the vehicle.

[0029] According to a fourth aspect of the present application, a control device is provided, characterized in that the control device includes a memory and a processor, the memory stores a computer program run by the processor, and when the computer program is run by the processor, the device equipped with the processor executes the above-mentioned variable rim control method.

[0030] According to a fourth aspect of the present application, a vehicle is provided, comprising the above-mentioned variable rim control system.

[0031] The control system of the variable rim of the present application recognizes the driving intention and the vehicle's own status through sensors on the vehicle, and controls the opening and closing of the rim cover through a controller to control the aerodynamic characteristics of the wheel, thereby improving the vehicle's handling performance. BRIEF DESCRIPTION OF THE DRAWINGS

[0032] The above and other purposes, features and advantages of the present invention will become more apparent by describing the embodiments of the present invention in more detail in conjunction with the accompanying drawings. The accompanying drawings are used to provide a further understanding of the embodiments of the present invention and constitute a part of the specification. Together with the embodiments of the present invention, they are used to explain the present invention and do not constitute a limitation of the present invention. In the accompanying drawings, the same reference numerals generally represent the same components or steps.

[0033] Figure 1 is a schematic block diagram of a control system of a variable rim according to an embodiment of the present application;

[0034] Figure 2is a schematic structural diagram of a variable rim according to an embodiment of the present application;

[0035] Figure 3 is a schematic structural diagram of a controller according to an embodiment of the present application;

[0036] Figure 4 is a schematic flow chart of a control method of a variable rim according to an embodiment of the present application;

[0037] Figure 5 is a schematic diagram of a first opening method of a rim cover according to an embodiment of the present application;

[0038] Figure 6 is a schematic diagram of a second opening method of a rim cover according to an embodiment of the present application;

[0039] Figure 7 is a schematic diagram of the forces when the rim covers of two wheels according to an embodiment of the present application are opened to a first direction and a second direction respectively;

[0040] Figure 8 is a top view of the force condition of a vehicle according to an embodiment of the present application;

[0041] Fig. 9 is a side view of a vehicle force condition according to an embodiment of the present application;

[0042] Fig.10 is a top view of the force applied to the vehicle when the rim cover is controlled to open when the vehicle nods according to one embodiment of the present application;

[0043] Fig.11 is a side view of the force applied to the vehicle when the rim cover is controlled to open when the vehicle nods according to one embodiment of the present application;

[0044] Fig.12 is a top view of the force applied to the vehicle when the rim cover is controlled to open when the vehicle is raised according to an embodiment of the present application;

[0045] Fig.13 It is a side view of the force condition of the vehicle when the rim cover is controlled to be opened when the vehicle is raised according to one embodiment of the present application;

[0046] Fig.14 It is a top view of the force condition of the vehicle when the rim cover is controlled to be opened when the vehicle movement trend is corrected according to an embodiment of the present application;

[0047] Fig.15 is a top view of the force condition of the vehicle when the rim cover is controlled to be opened when the vehicle movement trend is corrected according to another embodiment of the present application;

[0048] Fig.16It is a top view of the force condition of the vehicle when the vehicle increases the positive pressure and corrects the movement trend according to one embodiment of the present application;

[0049] Fig.17 It is a front view of the force condition of the vehicle when the vehicle increases the positive pressure and corrects the movement trend according to an embodiment of the present application. DETAILED DESCRIPTION

[0050] In order to make the purpose, technical scheme and advantages of the present invention more obvious, the exemplary embodiments according to the present invention will be described in detail with reference to the accompanying drawings. Obviously, the described embodiments are only part of the embodiments of the present invention, rather than all the embodiments of the present invention, and it should be understood that the present invention is not limited to the exemplary embodiments described herein. Based on the embodiments of the present invention described in the present invention, all other embodiments obtained by those skilled in the art without creative work should fall within the protection scope of the present invention.

[0051] First, refer to Figure 1 A control system of a variable rim according to an embodiment of the present application is described.

[0052] like Figure 1 As shown, the control system 100 of the variable rim provided by the present application includes: a variable rim 110, a controller 120, a vehicle state sensor 130, and a driving intention sensor 140, wherein the controller 120 is electrically connected to the variable rim 110, the vehicle state sensor 130, and the driving intention sensor 140 respectively;

[0053] The variable rim 110 includes at least one rim cover plate, and the opening direction and opening angle of the rim cover plate are adjustable;

[0054] The vehicle state sensor 130 is used to collect the driving state information of the vehicle;

[0055] A driving intention sensor 140, for collecting driving intention information of operating components in the vehicle;

[0056] The controller 120 is used to adjust the opening direction and opening angle of the rim cover to control the aerodynamic performance of the wheel based on the driving state information and the driving intention information.

[0057] Specifically, Figure 2As shown, the variable rim 110 in the present application includes a rim body, a rim cover plate movable pair (not shown in the figure), at least one rim cover plate 113, and a driving mechanism (not shown in the figure), wherein the rim body includes a rim 111, a hub 112, and a spoke 114. The rim cover plate 113 is movably connected to the rim body through the rim cover plate movable pair, and the rim cover plate 113 at least partially covers the opening of the axial end of the rim body, the rim cover plate movable pair is connected to the driving mechanism, the rim cover plate 113 can be fixedly connected to the rim cover plate movable pair, and the rim cover plate movable pair can be set on the hub 112 or the spoke 114. The figure also shows a shock absorber 101, a steering gear 102, a frame 103, and an angle torque sensor 104.

[0058] In the present application, the rim cover movable pair can drive the rim cover 113 to open in different directions. The rim cover movable pair can be opened and closed by hydraulic control, or by electromagnetic force, or controlled by other mechanical structures. Accordingly, the driving mechanism used can be a hydraulic mechanism, an electromagnetic mechanism, such as an electromagnetic hinge, and a mechanical push rod.

[0059] In the present application, the rim cover plate 113 may adopt a variety of structures, and the present application does not make any specific limitation thereto.

[0060] Preferably, the rim cover 113 is a multi-hinge folding structure with multiple rotating axes for fixing and rotating, so as to maximize the control of the aerodynamic performance of the wheel.

[0061] In the present application, the vehicle state sensor may include at least one of a rotation angle torque sensor, an accelerator pedal sensor, and a brake pedal sensor. Figure 2 The angle torque sensor 104 is arranged on the steering gear 102, and the angle torque sensor 104 is used to collect the steering information of the steering gear 102; the accelerator pedal sensor is used to collect the displacement information of the accelerator pedal, and the brake pedal sensor is used to collect the displacement information of the brake pedal.

[0062] In the present application, the driving intention sensor may include at least one of a wheel speed sensor, a vehicle acceleration sensor, and a suspension state sensor.

[0063] The wheel speed sensor is used to collect wheel speed information, the vehicle acceleration sensor is used to collect vehicle acceleration information, and the suspension state sensor is used to collect suspension state information. Specifically, the suspension state sensor can be a suspension acceleration sensor or a suspension position sensor, and the vehicle acceleration sensor can be an inertial sensor.

[0064] The shock absorber, suspension state sensor, wheel speed sensor, accelerator pedal sensor, brake pedal sensor, angle torque sensor, frame, and steering gear involved in this application can adopt existing devices or mechanisms, so they will not be described in detail in this application.

[0065] In the present application, the controller 120 may be a domain controller or a central controller of the vehicle.

[0066] Specifically, Figure 3 As shown, the control device 120 may include a processor 121, a memory 122, and a communication interface 123. The processor 121, the memory 122, and the communication interface 123 may be interconnected and communicated via a communication bus 124 and / or other forms of connection mechanisms (not shown).

[0067] It should be noted that Figure 2 The components and structure of the controller 120 shown are merely exemplary and non-limiting. The controller may also have other components and structures as required.

[0068] Optionally, the communication interface 123 may also include a transmitter and / or a receiver.

[0069] The processor 121 can be a microcontroller unit (MCU), a central processing unit (CPU), a digital signal processor (DSP), a single-chip microcomputer and an embedded device, or other forms of processing units with data processing capabilities and / or instruction execution capabilities, and can control other components in the autonomous driving vehicle system to perform desired functions.

[0070] The memory 122 may be a computer-readable storage medium in various forms, such as a volatile memory and / or a non-volatile memory. Volatile memory may include, for example, a random access memory (RAM), a cache memory (cache), a synchronous dynamic random access memory (SDRAM), etc. Non-volatile memory may include, for example, a read-only memory (ROM), a hard disk, a flash memory (Flash), etc. One or more computer program instructions may also be stored on the computer-readable storage medium, and the memory 122 may run the program instructions to implement the control method of the variable rim described below.

[0071] The control system of the variable rim of the present application recognizes the driving intention and the vehicle's own status through sensors on the vehicle, and controls the opening and closing of the rim cover through a controller to control the aerodynamic characteristics of the wheel, thereby improving the vehicle's handling performance.

[0072] Next, refer to Figure 4 A control method of a variable rim according to an embodiment of the present application will be described.

[0073] like Figure 4 As shown, a control method for a variable rim provided in the present application is applied to the above-mentioned control system for the variable rim. Specifically, the execution subject of the control method is a controller in the control system, and includes the following steps S410-S420.

[0074] In step S410, the opening direction of the rim cover in the variable rim is controlled based on the driving intention information and / or the driving state information of the vehicle.

[0075] In the present application, the driving state information includes one or more of the steering information of the steering gear, the displacement information and speed information of the accelerator pedal, and the displacement information and speed information of the brake pedal, and the driving intention information includes one or more of the wheel speed information, the acceleration information of the vehicle, and the state information of the suspension. Specifically, the state information of the suspension may be the suspension acceleration information or the suspension position information.

[0076] Specifically, the method for obtaining steering information is: based on the data collected by the vehicle's steering angle torque sensor, through a preset model, the vehicle's steering angle and rotation rate can be converted; the brake pedal sensor can obtain displacement information and rate information, thereby detecting the driver's braking intention; the accelerator pedal sensor can obtain the accelerator pedal displacement and rate, thereby determining the vehicle's power requirements.

[0077] In the present application, the opening direction of the rim cover in the variable rim can determine the flow direction of air passing through the wheel, thereby generating vertical force and lateral force on the wheel.

[0078] When the vehicle controller determines that the working conditions require opening and closing the wheel rim cover, the wheel rim cover is controlled to coordinate the specific conditions detected by the vehicle's braking, steering, and suspension sensors and the movement trend of the vehicle body detected by the body acceleration sensor.

[0079] In step S420, after the rim cover is opened, the opening angle of the rim cover is adjusted based on the driving intention information and / or the driving state information of the vehicle.

[0080] In the present application, the compensation effect of the positive pressure and lateral force of each wheel needs to be combined with the suspension motion sensor, the steering angle torque sensor, and the vehicle acceleration sensor, the accelerator pedal sensor, and the brake pedal sensor to judge the driving intention and the vehicle movement trend to adjust the opening angle of the rim cover. Specifically, the adjustment process is controlled by feedback control or feedforward control, so as to correct the opening and closing angle of the rim cover to achieve the purpose of optimized control.

[0081] The control method of the variable rim of the present application changes the forces on the wheel and the vehicle body by opening the rim cover in the variable rim, thereby improving the aerodynamic characteristics of the rim and further improving the handling performance of the vehicle.

[0082] According to one embodiment of the present application, the opening direction of the rim cover includes a first direction and a second direction;

[0083] When the rim cover is opened to a first direction, air passes through the variable rim and flows toward the inner side of the wheel;

[0084] When the rim cover is opened to the second direction, air passes through the variable rim and flows to the outside of the wheel; wherein the rolling direction of the wheel is the front of the vehicle.

[0085] The following combination Figure 5-6 To illustrate the opening method of the variable rim according to an embodiment of the present application.

[0086] Figure 5 The coordinate system used in this application is shown in . For the convenience of subsequent description, it is uniformly stipulated that the force in the X direction is represented by T, the force in the Y direction is represented by F, and the force in the Z direction is represented by N. The solid point represents the downward force perpendicular to the paper view, the hollow point represents the upward force perpendicular to the paper view, and other force directions are represented by arrows.

[0087] For the convenience of description and in combination with more practical applications, the driving conditions in the following embodiments of the present application are all conditions in which the wheels roll forward and the vehicle drives forward.

[0088] Based on Bernoulli's principle, the rim cover can be opened and closed in different ways to produce different force forms.

[0089] Figure 5 The first opening mode of the rim cover of the left front wheel is shown in the figure. The variable rim shown in the figure includes a rim body 111, four rim covers 113, and spokes 114. Figure 5 As shown, at this time, the rim cover 113 is opened to the first direction, and the wheel rolls forward. Due to the rotation of the unfolded rim cover and the superposition of the vehicle's own forward movement trend, the air passes through the variable rim and flows to the inside of the wheel, thereby generating a +Z-direction vertical force N2 and a -Y-direction lateral force F1.

[0090] Figure 6 The second opening method of the rim cover of the left front wheel is shown. Figure 6 As shown, at this time, the rim cover 113 is opened to the second direction, the wheel rolls forward, and the air passes through the variable rim and flows to the outside of the wheel, thereby generating a -Z vertical force N1, increasing the Z force of the vehicle, and at the same time the vehicle is subjected to a +Y lateral force F2.

[0091] By controlling the opening and closing of the wheel rim cover according to different stress forms, the stress on the vehicle can be corrected, thereby improving the vehicle's handling performance.

[0092] Figure 7 The force when the rim covers of two wheels are opened to the first direction and the second direction respectively is shown. In the figure, A indicates that the rim cover is opened to the first direction, and B indicates that the rim cover is opened to the second direction. Figure 7 (a) shows the force condition when the rim covers of the left and right wheels are both opened to the first direction. At this time, the forces acting on the vehicle include F1, F2, and N2; (b) shows the force condition when the rim covers of the left and right wheels are both opened to the second direction. At this time, the forces acting on the vehicle include F2, F1, and N1; (c) shows the force condition when the rim covers of the left wheel are both opened to the first direction and the rim covers of the right wheel are both opened to the second direction. At this time, the forces acting on the vehicle include the force F1 acting on the left and right wheels respectively.

[0093] According to one embodiment of the present application, when the weight of the vehicle is less than a preset weight threshold or the ground adhesion coefficient is lower than a preset adhesion coefficient threshold, controlling the opening direction of the rim cover in the variable rim includes:

[0094] The wheel rim covers of the left front wheel, the right front wheel, the left rear wheel and the right rear wheel of the vehicle are controlled to open to the second direction to increase the positive pressure of the wheels.

[0095] In this embodiment, the preset weight threshold and the preset adhesion coefficient threshold can be determined according to actual conditions, and this embodiment does not make any specific limitation on this.

[0096] Figure 8 is a top view of the force condition of a vehicle according to an embodiment of the present application, Fig. 9 It is a side view of the force condition of a vehicle according to an embodiment of the present application.

[0097] It should be noted that, to facilitate subsequent description, it is uniformly stipulated in this embodiment and the following embodiments that the forces of the left front rim, the right front rim, the left rear rim, and the right rear rim are numbered 1, 2, 3, and 4, respectively, such as the forces in the X-direction T1, T2, T3, and T4. The solid dots represent the downward forces perpendicular to the paper view, and the hollow dots represent the upward forces perpendicular to the paper view. Other force directions are represented by arrows.

[0098] like Figure 8 and Fig. 9As shown, it is an application to increase the positive pressure of the wheels of the whole vehicle. Since some high-performance vehicles are extremely light but require extremely high positive pressure for braking and driving, the axle weight cannot provide positive pressure. At this time, the wheel rim cover can be directly opened to the second direction to increase the positive pressure of the wheels of the whole vehicle, thereby improving the vehicle's handling performance, such as power, braking, and handling. The application scenario for increasing the positive pressure of the wheels of the whole vehicle can also be slippery low-adhesion roads such as ice and snow, which also need to increase the positive pressure to improve vehicle performance. At this time, the wheel rim cover can be opened to the second direction to increase the positive pressure of the wheels to improve vehicle performance. The opening timing and angle can be determined by the central controller based on the vehicle status information and driving intention information of each subsystem.

[0099] According to one embodiment of the present application, when the driving state information is that the vehicle is nodding, controlling the opening direction of the rim cover in the variable rim includes:

[0100] The rim covers of the left front wheel and the right front wheel of the vehicle are controlled to open to a first direction to reduce the positive pressure of the front wheels, and the rim covers of the left rear wheel and the right rear wheel of the vehicle are controlled to open to a second direction to increase the positive pressure of the rear wheels.

[0101] Fig.10 is a top view of the force applied to the vehicle when the rim cover is opened when the vehicle nods according to an embodiment of the present application, Fig.11 It is a side view of the force condition of the vehicle when the rim cover is controlled to open when the vehicle nods according to an embodiment of the present application.

[0102] like Fig.10 and Fig.11 As shown, the application scenario of this embodiment can be that when the vehicle is affected by the torque during emergency braking, the vehicle will have a nodding tendency, affecting the rear axle braking force. At this time, the left front wheel and the right front wheel open the rim cover to the first direction, and the front axle generates an upward force N1+N2. The rear axle is the opposite. The left rear wheel and the right rear wheel open the rim cover to the second direction, and the rear axle generates a downward force N3+N4. The force trend of the front and rear axles can effectively suppress the vehicle's nodding (front axle downward) movement trend and improve the vehicle's braking force. The opening timing and angle can be determined by the central controller based on the vehicle status information and driving intention information of each subsystem.

[0103] According to one embodiment of the present application, when the driving state information is that the vehicle is head-up, controlling the opening direction of the rim cover in the variable rim includes:

[0104] The rim covers of the left front wheel and the right rear wheel of the vehicle are controlled to open to the second direction to increase the positive pressure of the front wheels, and the rim covers of the right front wheel and the left rear wheel of the vehicle are controlled to open to the first direction to reduce the positive pressure of the rear wheels.

[0105] Fig.12is a top view of the force applied to the vehicle when the rim cover is controlled to open when the vehicle is raised according to an embodiment of the present application, Fig.13 FIG. 1 is a side view of the force applied to the vehicle when the rim cover is opened when the vehicle is raised according to an embodiment of the present application. Fig.12 and Fig.13 As shown, when the vehicle accelerates suddenly, the vehicle will have a tendency to lift its head. If it is a front-wheel drive vehicle, the vehicle driving force will be affected. At this time, the rim cover of the front wheel opens to the second direction to increase the positive pressure of the front wheel, and the front axle generates a downward force N1+N2. The rear axle is the opposite. The rim cover of the rear wheel opens to the first direction, and the rear axle generates an upward force N3+N4. The force trend of the front and rear axles can effectively suppress the vehicle's lifting head (front axle upward) movement trend and improve the vehicle's driving force. The opening timing and angle can be determined by the central controller based on the vehicle status information and driving intention information of each subsystem.

[0106] According to one embodiment of the present application, when the vehicle motion trend is corrected based on the driving intention information and / or the driving state information of the vehicle, the opening direction of the rim cover in the variable rim is controlled, including:

[0107] Control the wheel rim covers of the left front wheel and the right rear wheel of the vehicle to open to the first direction at the same time, and control the wheel rim covers of the left rear wheel and the right front wheel of the vehicle to open to the second direction at the same time; or,

[0108] The rim covers of the left front wheel and the right rear wheel of the vehicle are controlled to open to the second direction at the same time, and the rim covers of the left rear wheel and the right front wheel of the vehicle are controlled to open to the first direction at the same time.

[0109] Fig.14 is a top view of the force condition of the vehicle when the rim cover is controlled to be opened when the vehicle movement trend is corrected according to an embodiment of the present application, Fig.15 is a top view of the force condition of the vehicle when the rim cover is controlled to be opened when the vehicle movement trend is corrected according to another embodiment of the present application, Fig.14 and Fig.15 It is an application that controls the opening and closing of the wheel rim cover to correct the vehicle's motion trend in the Y direction and improve maneuverability. Fig.14 As shown, the left front wheel rim cover is opened to the second direction, the air flows outward and the vehicle is subjected to a force to the right; the right front wheel rim cover is opened to the first direction, the air flows to the inside of the tire and is subjected to a force to the right, then the front wheel is subjected to a force to the right, at this time, because the airflow direction of the rims is consistent, the positive pressure in the Z direction of the front axle remains basically unchanged; on the contrary, the left rear wheel rim cover is opened to the first direction, the air flows to the outside of the rim, the rear right wheel rim cover is opened to the second direction, the air flows to the inside of the rim, then the rear axle is subjected to a lateral force to the left, which is superimposed on the trend of the front wheel, causing the vehicle to have a tendency to correct to the right.

[0110] like Fig.15 As shown, the left front wheel rim cover is opened to the first direction, and the air flows to the outside of the rim; the right front wheel rim cover is opened to the second direction, and the air flows to the inside of the rim, then the front axle is subjected to a lateral force to the left; on the contrary, the left rear wheel rim cover is opened to the second direction, the air flows outward and the vehicle is subjected to a force to the right; the right rear wheel rim cover is opened to the first direction, the air flows to the inside of the tire and is subjected to a force to the right, then the rear wheel is subjected to a force to the right. At this time, because the airflow direction of the rims is consistent, the positive pressure in the Z direction of the rear axle is basically unchanged, and superimposed on the trend of the front wheels, the vehicle has a tendency to correct to the left.

[0111] According to one embodiment of the present application, when the vehicle increases the positive pressure and corrects the movement trend, controlling the opening direction of the rim cover in the variable rim includes:

[0112] The rim cover of any wheel of the vehicle is controlled to open to a first direction or a second direction to correct the posture of the vehicle.

[0113] When some high-performance vehicles (such as high-speed field vehicles) theoretically need to increase the positive pressure (or maintain the positive pressure) on all four wheels to improve the driving force, if the direction is corrected at this time, in order to ensure the driving force and controllability at the same time, only one of the wheels may be corrected.

[0114] Fig.16 is a top view of the force applied to the vehicle when the vehicle increases the positive pressure and corrects the movement trend according to an embodiment of the present application, Fig.17 1 is a front view of the force applied to the vehicle when the vehicle increases the positive pressure and corrects the motion trend according to an embodiment of the present application, such as Fig.16 and 17 As shown, the left rear wheel and the right rear wheel open the wheel rim cover to the second direction, and the rear axle generates a downward force N3+N4. When the vehicle turns left, the left front wheel is controlled separately to correct the vehicle posture and improve the handling performance. The left front wheel rim cover is opened to the second direction, and the air flows inward to generate an upward force N1, reducing a certain positive pressure on the wheel. The wheel is subjected to a force F1 to the left to compensate for the impact of the sudden change in the vehicle posture on the vehicle handling.

[0115] The control method of the variable rim provided in the present application can change the force of the vehicle body in the X / Y / Z directions by controlling the opening direction of the rim cover to meet the needs of various application scenarios, thereby improving the vehicle's handling performance.

[0116] The embodiment of the present application also provides a control device, which includes a memory and a processor. The memory stores a computer program executed by the processor. When the computer program is executed by the processor, the device equipped with the processor executes the above-mentioned variable rim control method.

[0117] An embodiment of the present application also provides a vehicle, including the above-mentioned variable rim control system.

[0118] Although example embodiments have been described herein with reference to the accompanying drawings, it should be understood that the above example embodiments are merely exemplary and are not intended to limit the scope of the present invention thereto. Various changes and modifications may be made therein by one of ordinary skill in the art without departing from the scope and spirit of the present invention. All such changes and modifications are intended to be included within the scope of the present invention as required by the appended claims.

[0119] Those skilled in the art will appreciate that the units and algorithm steps of each example described in conjunction with the embodiments disclosed herein can be implemented in electronic hardware, or a combination of computer software and electronic hardware. Whether these functions are performed in hardware or software depends on the specific application and design constraints of the technical solution. Professional and technical personnel can use different methods to implement the described functions for each specific application, but such implementation should not be considered to be beyond the scope of the present invention.

[0120] In the several embodiments provided in this application, it should be understood that the disclosed devices and methods can be implemented in other ways. For example, the device embodiments described above are only schematic, for example, the division of the units is only a logical function division, and there may be other division methods in actual implementation, such as multiple units or components can be combined or integrated into another device, or some features can be ignored or not executed.

[0121] In the description provided herein, a large number of specific details are described. However, it is understood that embodiments of the present invention can be practiced without these specific details. In some instances, well-known methods, structures and techniques are not shown in detail so as not to obscure the understanding of this description.

[0122] Similarly, it should be understood that in order to streamline the present invention and help understand one or more of the various inventive aspects, in the description of the exemplary embodiments of the present invention, the various features of the present invention are sometimes grouped together into a single embodiment, figure, or description thereof. However, the method of the present invention should not be interpreted as reflecting the following intention: the claimed invention requires more features than the features explicitly stated in each claim. More specifically, as reflected in the corresponding claims, the inventive point is that the corresponding technical problem can be solved with less than all the features of a single disclosed embodiment. Therefore, the claims following the specific embodiment are hereby expressly incorporated into the specific embodiment, wherein each claim itself serves as a separate embodiment of the present invention.

[0123] It will be understood by those skilled in the art that, except for mutually exclusive features, all features disclosed in this specification (including the accompanying claims, abstracts and drawings) and all processes or units of any method or device disclosed in this specification may be combined in any combination. Unless otherwise expressly stated, each feature disclosed in this specification (including the accompanying claims, abstracts and drawings) may be replaced by an alternative feature that provides the same, equivalent or similar purpose.

[0124] In addition, those skilled in the art will appreciate that, although some embodiments described herein include certain features included in other embodiments but not other features, the combination of features of different embodiments is meant to be within the scope of the present invention and form different embodiments. For example, in the claims, any one of the claimed embodiments may be used in any combination.

[0125] The various component embodiments of the present invention may be implemented in hardware, or in software modules running on one or more processors, or in a combination thereof. It should be understood by those skilled in the art that a microprocessor or digital signal processor (DSP) may be used in practice to implement some or all of the functions of some modules in the article analysis device according to an embodiment of the present invention. The present invention may also be implemented as a device program (e.g., a computer program and a computer program product) for executing part or all of the methods described herein. Such a program implementing the present invention may be stored on a computer-readable medium, or may be in the form of one or more signals. Such a signal may be downloaded from an Internet website, or provided on a carrier signal, or provided in any other form.

[0126] It should be noted that the above embodiments illustrate the present invention rather than limit it, and that those skilled in the art may devise alternative embodiments without departing from the scope of the appended claims. In the claims, any reference symbol between brackets shall not be construed as a limitation on the claims. The word "comprising" does not exclude the presence of elements or steps not listed in the claims. The word "one" or "an" preceding an element does not exclude the presence of a plurality of such elements. The present invention may be implemented by means of hardware comprising a number of different elements and by means of a suitably programmed computer. In a unit claim enumerating a number of devices, several of these devices may be embodied by the same hardware item. The use of the words first, second, and third, etc., does not indicate any order. These words may be interpreted as names.

[0127] The above is only a specific embodiment of the present invention or an explanation of a specific embodiment. The protection scope of the present invention is not limited thereto. Any person skilled in the art can easily think of changes or substitutions within the technical scope disclosed by the present invention, which should be included in the protection scope of the present invention. The protection scope of the present invention shall be based on the protection scope of the claims.

Claims

1. A control system for a variable rim, characterized in that: The control system comprises: a variable wheel rim, a controller, a vehicle state sensor, and a driving intention sensor, wherein the controller is electrically connected to the variable wheel rim, the vehicle state sensor, and the driving intention sensor respectively; The variable wheel rim comprises at least one wheel rim cover plate, and the opening direction and opening angle of the wheel rim cover plate are adjustable; The vehicle state sensor is used to collect the driving state information of the vehicle; The driving intention sensor is used to collect driving intention information of an operating component in the vehicle; The controller is used to adjust the opening direction and opening angle of the rim cover based on the driving state information and the driving intention information to control the aerodynamic performance of the wheel.

2. The control system of the variable rim as claimed in claim 1, characterized in that: The variable rim also includes a rim body, a rim cover movable pair and a driving mechanism, the rim cover is movably connected to the rim body through the rim cover movable pair, and the rim cover at least partially covers the opening at the axial end of the rim body, and the rim cover movable pair is connected to the driving mechanism.

3. The control system of the variable rim according to any one of claims 1 to 2, characterized in that: The vehicle state sensor includes at least one of a rotation angle torque sensor, an accelerator pedal sensor, and a brake pedal sensor.

4. The control system of the variable rim according to any one of claims 1 to 2, characterized in that: The driving intention sensor includes at least one of a wheel speed sensor, a vehicle acceleration sensor, and a suspension state sensor.

5. A method for controlling a variable rim, characterized in that: The control method comprises: Controlling the opening direction of the rim cover in the variable rim based on the driving intention information and / or the driving state information of the vehicle; After the wheel rim cover is opened, the opening angle of the wheel rim cover is adjusted based on the driving intention information and / or the driving state information of the vehicle.

6. The control method of the variable rim according to claim 5, characterized in that: The opening direction of the rim cover includes a first direction and a second direction; When the rim cover is opened to the first direction, air passes through the variable rim and flows to the inner side of the wheel; When the rim cover is opened to the second direction, air passes through the variable rim and flows to the outside of the wheel; wherein the rolling direction of the wheel is the front of the vehicle.

7. The control method of the variable rim according to claim 6, characterized in that: When the weight of the vehicle is less than a preset weight threshold or the ground adhesion coefficient is lower than a preset adhesion coefficient threshold, controlling the opening direction of the rim cover in the variable rim includes: The rim covers of the left front wheel, the right front wheel, the left rear wheel and the right rear wheel of the vehicle are controlled to open to the second direction to increase the positive pressure of the wheels.

8. The control method of the variable rim according to claim 6, characterized in that: When the driving state information is that the vehicle is nodding, the controlling the opening direction of the rim cover in the variable rim includes: The rim covers of the left front wheel and the right front wheel of the vehicle are controlled to open to the first direction to reduce the positive pressure of the front wheels, and the rim covers of the left rear wheel and the right rear wheel of the vehicle are controlled to open to the second direction to increase the positive pressure of the rear wheels.

9. The control method of the variable rim according to claim 6, characterized in that: When the driving state information indicates that the vehicle is head-up, the controlling the opening direction of the rim cover in the variable rim includes: The rim covers of the left front wheel and the right rear wheel of the vehicle are controlled to open to the second direction to increase the positive pressure of the front wheels, and the rim covers of the right front wheel and the left rear wheel of the vehicle are controlled to open to the first direction to reduce the positive pressure of the rear wheels.

10. The control method of the variable rim according to claim 6, characterized in that: When the vehicle movement trend is corrected based on the driving intention information and / or the driving state information, controlling the opening direction of the rim cover in the variable rim includes: Control the wheel rim covers of the left front wheel and the right rear wheel of the vehicle to open to the first direction at the same time, and control the wheel rim covers of the left rear wheel and the right front wheel of the vehicle to open to the second direction at the same time; or, The rim covers of the left front wheel and the right rear wheel of the vehicle are controlled to open to the second direction at the same time, and the rim covers of the left rear wheel and the right front wheel of the vehicle are controlled to open to the first direction at the same time.

11. The control method of the variable rim according to claim 6, characterized in that: When the vehicle increases the positive pressure and performs movement trend correction, controlling the opening direction of the rim cover in the variable rim includes: The rim cover of any wheel of the vehicle is controlled to open to the first direction or the second direction to correct the posture of the vehicle.

12. A control device, characterized in that: The control device includes a memory and a processor, wherein the memory stores a computer program executed by the processor, and when the computer program is executed by the processor, the device equipped with the processor executes the control method of the variable rim as described in any one of claims 5-11.

13. A vehicle, characterized in that: A control system comprising the variable rim according to any one of claims 1-4.

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