Wheel cavity structure, antifouling control method, system and fender

Abstract

The application relates to the technical field of vehicles and provides a wheel cavity structure, a dirt prevention control method and system and a fender. The wheel cavity structure comprises a first flow guide part arranged at a preset position of a fender contour and used for guiding the flow direction of wind during driving, so that the outside turbulence generated by tire rotation is delayed in separation; and a first flow field control part arranged reversibly at the lower edge of the fender contour, used for adjusting the opening area of the outside wheel opening of the wheel cavity and guiding the dirt particles in the wheel cavity to flow along a preset direction by cooperating with the first flow guide part. Compared with the prior art, the application can constrain the dirt particles in the inside of the wheel cavity, reduce the driving resistance, control the dirt particles to flow along the preset direction, avoid the particles from adhering to the surface of the door side wall and the rearview mirror lens, and reduce the driving experience of the user.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of vehicles, in particular to a wheel cavity structure, a dirt prevention control method, a system and a fender. BACKGROUND

[0002] Currently, commercial vehicles are used as main transportation tools, and their use environment and scene are more complex and harsh than passenger cars. When driving in the rain, the rain and dirt splashed by the rotating wheels will fly into the air, and under the wrapping of the flow field around the vehicle body, the rain and dirt particles will continue to be lifted, and under extreme conditions, they will adhere to the surface of the door side wall and the rearview mirror lens, affecting the comfort and safety of driving.

[0003] To improve the rain and dirt performance of the whole vehicle, a typical control method is to constrain the rain and dirt splashed by the rotating wheels inside the wheel cavity, allowing only a small amount of rain and dirt to diffuse into the outer flow field and ensuring that it flows backward.

[0004] Patent document 1-CN119160291A-“Fender structure and vehicle” divides the fender structure into two areas, and by making the number of holes per unit area in the first area greater than that in the second area, the first area around the mounting area has higher strength and stability. After comparing the fender form in the disclosed patent with the wheel cavity structure form with rain and dirt prevention performance in the present case, there is still a significant difference in form.

[0005] Patent document 2-CN209426868U-“Front wheel rear fender of heavy-duty truck”, designs a commercial vehicle rear fender, which is designed as a split type, and under the premise of not affecting the daily function of the fender, it gives the fuel tank more installation space, which mainly innovates from the structure, but there is a difference in form with the wheel cavity structure with rain and dirt prevention performance in the present case.

[0006] In summary, there is an urgent need for a wheel cavity structure, a dirt prevention control method, a system and a fender with rain and dirt prevention performance, which can constrain the dirt particles inside the wheel cavity when driving in the rain, avoid the particles adhering to the surface of the door side wall and the rearview mirror lens, and reduce the driving resistance. SUMMARY

[0007] The purpose of the present application is to provide a wheel cavity structure, a dirt prevention control method, a system and a fender, which can constrain the dirt particles inside the wheel cavity, reduce the driving resistance, and control the flow of dirt particles in a predetermined direction, avoid the particles adhering to the surface of the door side wall and the rearview mirror lens, and reduce the driving experience of the user. The specific scheme is as follows:

[0008] A wheel cavity structure, the wheel cavity structure comprising:

[0009] The first flow guide part is arranged at a preset position of the fender outer contour, and is used for guiding the flow direction of wind during driving, so that the outside turbulence generated by tire rotation is delayed to separate;

[0010] The first flow field control part is reversibly arranged at the lower edge of the fender outer contour, is used for adjusting the opening area of the outside wheel port of the wheel cavity, and guides the dirt particles in the wheel cavity to flow in a preset direction by cooperating with the first flow guide part;

[0011] The first flow field control part includes a turnover structure arranged at the lower edge of the fender outer contour, and the turnover structure is arranged below the first flow guide part;

[0012] The turnover structure includes:

[0013] The decorative plate is reversibly arranged at the lower edge of the fender outer contour;

[0014] The driving structure is arranged inside the fender outer contour;

[0015] The output shaft of the driving structure is fixedly connected with the decorative plate, and is used for driving the decorative plate to reversibly turn inside and outside along the vehicle body width direction in the wheel cavity.

[0016] Further, the first flow guide part includes a plurality of flow guide vanes; the plurality of flow guide vanes are uniformly distributed along a preset position of the fender above the tire; wherein the preset position is a part of the fender outer contour close to the lower edge;

[0017] The overall shape of each flow guide vane is A-shaped, and the tip of the A-shaped flow guide vane faces the driving direction of the vehicle; wherein the tail end of each flow guide vane is provided with an inner groove.

[0018] Further, the extension line of the direction of the tip of each flow guide vane and the horizontal plane form an acute angle, and each acute angle ranges from greater than or equal to 20° to less than or equal to 40°.

[0019] Further, the first flow field control part includes:

[0020] At least three groups of turnover structures are reversibly arranged at the lower edge of the fender outer contour, and the at least three groups of turnover structures are arranged below the first flow guide part;

[0021] Each turnover structure includes:

[0022] The decorative plate is reversibly arranged at the lower edge of the fender outer contour;

[0023] The driving motor is arranged inside the fender outer contour;

[0024] The output shaft of the driving motor is fixedly connected with the decorative plate, and is used to drive the decorative plate to turn over inside the wheel cavity along the width direction of the vehicle body.

[0025] Further, the mud blocking part is arranged at the rear side of the wheel cavity, and is used to discharge the mud particles generated by the tire during driving.

[0026] The rear end of the top of the mud blocking part is arranged with a plurality of reinforcing grooves, and a plurality of exhaust holes are arranged on the mud blocking part along the width direction of the vehicle.

[0027] The front end opening of each exhaust hole is arranged to be inclined upward toward the front of the vehicle, and the inclination angle is greater than or equal to 20° and less than or equal to 40°, and correspondingly, the rear end opening of each exhaust hole is inclined downward by an angle greater than or equal to 20° and less than or equal to 40°.

[0028] A kind of anti-pollution control method is applied to the wheel cavity structure;The anti-pollution control method comprises the following steps:

[0029] S1: obtaining key data during driving;The key data at least includes: environmental data, vehicle operation data and target position characteristic data;

[0030] S2: comparing the key data during driving with the preset range, to generate corresponding control instructions;

[0031] S3: based on different control instructions, obtain corresponding control strategy to control the first flow field control part to work.

[0032] Further, the environmental data at least includes: rainfall and road surface data;The road surface data at least includes: muddy road surface and wet road surface;

[0033] The vehicle operation data at least includes: driving speed;

[0034] Step S2, specifically includes:

[0035] When the obtained rainfall is less than the first rainfall value, the driving speed is less than the first speed, the driving road surface is wet road surface, and the slip rate of wet road surface falls within the first range, then generate the first control instruction;

[0036] Correspondingly, step S3, specifically includes: based on the first control instruction, obtain the first control strategy;

[0037] Based on the first control strategy, the turning structure of the first flow field control part in each wheel cavity is controlled to turn down by a first angle to reduce the opening area of the wheel opening, and a first trigger signal is generated;

[0038] In response to the first trigger signal, the overturning structure located at the rear side of the wheel cavity in the first flow field control part inside each rear wheel is controlled to overturn downward by a second angle; wherein the second angle is a superimposed angle based on the first angle.

[0039] Further, the following steps are further included:

[0040] When the acquired rainfall < the first rainfall value, the driving speed < the first speed, and the driving road surface is a muddy road surface, if the first control strategy has been executed, a second control instruction is triggered;

[0041] Based on the second control instruction, the first control strategy is adjusted to the second control strategy;

[0042] Based on the second control strategy, the at least three overturning structures of the first flow field control part in each wheel cavity are controlled to continue to overturn outward by a third angle;

[0043] When the acquired rainfall > the second rainfall value and the driving speed > the second speed during execution of the second control strategy, a third control strategy is triggered; wherein the second rainfall value > the first rainfall value and the first speed < the second speed;

[0044] Based on the third control strategy, the at least three overturning structures of the first flow field control part in each wheel cavity are controlled to continue to overturn outward by a fourth angle, and a second trigger signal is generated;

[0045] Based on the second trigger signal, target position feature data is started to be collected; wherein the target position feature data at least includes a feature occlusion rate of an outside rearview mirror and a door side wall;

[0046] When the feature occlusion rate of any one target is detected to be greater than a first preset value, the at least three overturning structures in the first flow field control part are controlled to sequentially overturn outward by a fifth angle according to a preset order until the feature occlusion rate of all targets is less than a second preset value;

[0047] Wherein, the preset order is to control the overturning structures to overturn along the front side, the middle part and the rear side of the wheel cavity in sequence.

[0048] A dirt prevention control system applied to the dirt prevention control method; the dirt prevention control system includes the following steps:

[0049] A data collection module configured to acquire key data in the driving process; the key data at least includes environmental data, vehicle operation data and target position feature data;

[0050] A judgment module configured to compare the key data in the driving process with a preset range to generate a corresponding control instruction;

[0051] The policy control module is configured to obtain a corresponding control policy based on different control instructions to control the first flow field control part to work.

[0052] A fender comprising the wheel cavity structure. Through the above scheme, the following beneficial technical effects are obtained:

[0053] The application provides a wheel cavity structure, a dirt prevention control method, a system and a fender. The wheel cavity structure delays the separation of the outside turbulence generated by the rotation of the tire by arranging a first flow guide part, reduces the driving resistance, and adjusts the opening area of the wheel opening outside the wheel cavity by the first flow field control part to prevent the dirt particles in the wheel cavity from splashing outward. The first flow field control part cooperates with the first flow guide part to control the dirt particles to flow in the lateral rear direction of the vehicle, thereby preventing the particles from adhering to the surface of the door side wall and the rearview mirror lens and affecting the driving experience. Further, by using the dirt prevention control method, different control strategies are used to control the wheel cavity structure to work in different scenarios when driving in the rain, thereby preventing the dirt particles from polluting the rearview mirror lens and the door side wall and causing poor driving experience of the user, and further improving the driving safety. BRIEF DESCRIPTION OF DRAWINGS

[0054] Figure 1 It is a flowchart of a dirt prevention control method;

[0055] Figure 2 It is a schematic diagram of the overall structure of a wheel cavity structure, which indicates the schematic diagram of the first flow field control part in the expanded state;

[0056] Figure 3 It is a schematic diagram of the first flow field control part in the contracted state or non-working state;

[0057] Figure 4 It is a three-dimensional schematic diagram of the mud blocking part;

[0058] Figure 5 It is a schematic diagram of the dirt discharge hole of the large surface of the mud blocking part;

[0059] Figure 6 It is a schematic diagram of the wheel cavity flow field effect of an existing commercial vehicle;

[0060] Figure 7 It is a schematic diagram of the wheel cavity flow field effect of an existing commercial vehicle;

[0061] In the figure: 1, first flow guide part; 11, flow guide blade; 2, fender; 3, turnover structure; 31, decorative plate; 4, mud blocking part; 41, reinforcing groove; 42, dirt discharge hole. DETAILED DESCRIPTION

[0062] In order to make the purposes, technical solutions and advantages of the present application clearer, the following will combine the accompanying drawings to further describe the present application in detail. Figures 1-7 It is apparent that the described embodiments are only a part of the embodiments of the present application, but not all the embodiments. Based on the embodiments in the present application, all the other embodiments obtained by those of ordinary skill in the art without creative work fall within the scope of the present application.

[0063] The terms used in the embodiments of the present application are only for the purpose of describing particular embodiments and are not intended to limit the present application. The singular forms "a", "said" and "the" used in the embodiments of the present application and the appended claims are also intended to include the plural forms, unless the context clearly indicates otherwise. "Plural" generally includes at least two.

[0064] It should be understood that the term "and / or" used herein only describes an association relationship of associated objects, which means that there can be three relationships, for example, A and / or B, which means that there are three cases of A alone, A and B together, and B alone. In addition, the character " / " herein generally represents an "or" relationship between the front and rear associated objects.

[0065] It should be understood that although the terms first, second, third, etc. can be used in the embodiments of the present application, these descriptions should not be limited to these terms. These terms are only used to distinguish the description. For example, without departing from the scope of the embodiments of the present application, the first can also be called the second, and similarly, the second can also be called the first.

[0066] Depending on the context, the word "if" as used herein can be interpreted as "when" or "upon" or "in response to determining" or "in response to detecting". Similarly, depending on the context, the phrase "if it is determined" or "if (a stated condition or event) is detected" can be interpreted as "when it is determined" or "in response to determining" or "when (a stated condition or event) is detected" or "in response to detecting (a stated condition or event)".

[0067] It should also be noted that the terms "comprise", "comprise" or any other variant thereof are intended to cover non-exclusive inclusion, so that the product or device including a series of elements not only includes those elements, but also includes other elements not explicitly listed or inherent to such product or device. Without more limitations, the element defined by the sentence "comprises a" does not exclude the presence of other identical elements in the product or device comprising the element.

[0068] It is particularly important to note that the symbols and / or numbers present in the description, if not marked in the description of the drawings, are not drawing references.

[0069] In combination Figures 2 to 5 The wheel cavity structure shown in the figure comprises:

[0070] The first flow guide part 1 is arranged at a predetermined position of the outer contour of the wing panel 2, and is used to guide the flow direction of the wind during driving, so that the outside turbulence generated by the rotation of the tire is delayed separation;

[0071] The first flow field control part is reversibly arranged at the lower edge of the outer contour of the wing panel 2, and can adjust the opening area of the outside wheel opening of the wheel cavity, and guide the mud particles in the wheel cavity to flow in a predetermined direction by cooperating with the first flow guide part 1;

[0072] The first flow field control part comprises a turnover structure 3 arranged at the lower edge of the outer contour of the wing panel 2, and the turnover structure 3 is arranged below the first flow guide part 1;

[0073] The turnover structure 3 comprises:

[0074] The decorative plate 31 is rotatably arranged at the lower edge of the outer contour of the wing panel 2;

[0075] The driving structure is arranged inside the outer contour of the wing panel 2;

[0076] The output shaft of the driving structure is fixedly connected with the decorative plate 31, and is used to drive the decorative plate 31 to turn over inside and outside along the width direction of the vehicle body in the wheel cavity.

[0077] Specifically, the first flow guide part 1 is arranged at a predetermined position of the outer contour of the wing panel 2, and is used to guide the flow direction of the wind during driving, so that the outside turbulence generated by the rotation of the tire is delayed separation, and the driving resistance is reduced. On this basis, through the first flow field control part, the opening area of the wheel opening of the wheel cavity is controlled, so that the mud particles can flow along the side and rear direction of the vehicle, and the particles are prevented from adhering to the surface of the door side wall and the lens of the rearview mirror, causing the user to have a bad driving experience and a risk of safe driving.

[0078] It can be understood that when the vehicle is running, a negative pressure vortex area will be formed inside the wheel cavity due to the rotation of the tire, which is easy to roll up particles such as ground mud, gravel, and water. The prior art lacks effective technical means to constrain these particles from flying everywhere, so these particles will splash to the door side, rearview mirror lens and side of the vehicle body. The first flow field control part is designed to overturn to adjust the opening area of the wheel opening, which can accurately control the airflow flow and flow rate entering the wheel cavity; when the overturning structure 3 is turned down, on the one hand, it can reduce the air intake of the wheel opening, thereby weakening the negative pressure strength inside the wheel cavity and reducing the amount of particles rolled up; on the other hand, the inclined surface of the overturning structure 3 will form a guide airflow layer, which will form a coordinated flow field with the main airflow on the side of the vehicle body guided by the first flow guide part 1, and the high-speed airflow on the side of the vehicle body will be guided to the outside of the wheel cavity, that is, through the positive thrust, the movement trajectory of the mud particles is forced to be constrained in the preset direction, such as the fixed path from the outside of the wheel cavity to the rear side of the vehicle body, thereby avoiding the movement of the mud particles towards the door and the rearview mirror.

[0079] Further, the first flow guide part 1 includes a plurality of flow guide vanes 11; the plurality of flow guide vanes 11 are evenly distributed along a preset position of the fender 2 above the tire; wherein the preset position is a part of the fender 2 contour close to the lower edge.

[0080] The overall shape of each flow guide vane 11 is A-shaped, and the tip of the A-shaped flow guide vane 11 faces the direction of vehicle travel; wherein the tail end of each flow guide vane 11 is provided with an inner groove.

[0081] The extension line of the direction of the tip of each flow guide vane 11 forms an acute angle with the horizontal plane, and each acute angle ranges from greater than or equal to 20° to less than or equal to 40°.

[0082] It can be understood that the plurality of flow guide vanes 11 provided by the present application have an overall A-shaped shape, and the arrangement is that the tips of the flow guide vanes 11 face the direction of travel, so as to smoothly guide the oncoming wind of the vehicle head and reduce airflow impact loss; further, the plurality of flow guide vanes 11 are evenly distributed along a preset position of the fender 2 above the tire, so as to divide the oncoming airflow into orderly airflow, and cooperate with the inner groove arranged at the tail end part to strengthen the guiding effect of the airflow above the tire, efficiently delay the turbulent flow separation outside the tire, and reduce the driving resistance.

[0083] Further, the first flow field control part includes:

[0084] Three groups of overturning structures 3 are continuously arranged at the lower contour of the fender 2, and the three groups of overturning structures 3 are correspondingly arranged below the first flow guide part 1;

[0085] Each overturning structure 3 includes:

[0086] The decorative plate 31 is arranged on the outer contour of the wing 2 and is rotatable through a pivot;

[0087] The driving motor is arranged on the inner side of the outer contour of the wing 2;

[0088] The output shaft of the driving motor is fixedly connected with the pivot, and is used to drive the decorative plate 31 to rotate in the wheel cavity along the width direction of the vehicle body.

[0089] It should be noted that the initial position of the decorative plate 31 is that each decorative plate 31 is located on the inner side of the wing 2 close to the tire, and the initial state of the decorative plate 31 is perpendicular to the inner side wall of the wing 2 at the corresponding position; therefore, in operation, the decorative plate 31 is first rotated from the initial position to a state perpendicular to the ground under the action of the driving motor, so as to adjust the opening area of the wheel opening, and can be further rotated outward from the state perpendicular to the ground by a certain angle, so as to guide the high-speed airflow to flow along the preset direction.

[0090] Further, the mud blocking part 4 is fixedly connected to the vehicle frame at the top; the mud blocking part 4 is arranged at the rear side of the wheel cavity, and is used to discharge the mud particles generated by the tire during driving;

[0091] The top rear end of the mud blocking part 4 is provided with a plurality of reinforcing grooves 41; a plurality of exhaust holes 42 are arranged on the mud blocking part 4 along the width direction of the vehicle;

[0092] The front end opening of each exhaust hole 42 is arranged upwardly inclined toward the front of the vehicle, and the inclination angle is greater than or equal to 20° and less than or equal to 40°; correspondingly, the rear end opening of each exhaust hole 42 is downwardly inclined by an angle greater than or equal to 20° and less than or equal to 40°.

[0093] The plurality of exhaust holes 42 arranged on the surface of the mud blocking part 4 can discharge the part of the rain and mud particles flying backward under the action of the rotating wheel; it can be understood that compared with the traditional anti-splashing method, the design of the mud blocking part 4 avoids the phenomenon that the rain and mud particles escape to the outer flow field by rebounding in the wheel cavity twice.

[0094] As shown in Figure 1 The application provides a control method for preventing pollution, which is applied to the wheel cavity structure; the control method for preventing pollution comprises the following steps:

[0095] S1: acquiring key data during driving; the key data at least includes environmental data, vehicle operation data and target position characteristic data;

[0096] S2: comparing the key data during driving with a preset range to generate a corresponding control instruction;

[0097] S3: Obtain a corresponding control strategy based on different control instructions to control the first flow field control part to work.

[0098] Specifically, the application triggers the corresponding control strategy by collecting the key data in the driving process and comparing it with the preset range to drive the first flow field control part to work, thereby adapting to different scenes, realizing the real-time and accuracy of the anti-fouling control, avoiding resource waste, and dynamically adjusting the flow field control strength according to the actual pollution risk, and effectively improving the wheel cavity anti-fouling ability.

[0099] The environmental data at least includes: rainfall and road surface data; the road surface data at least includes: muddy road surface and wet road surface;

[0100] The vehicle operation data at least includes: driving speed.

[0101] Step S2, comparing the key data in the driving process with the preset range to generate a corresponding control instruction, specifically including:

[0102] When the obtained rainfall < first rainfall value, driving speed < first speed, driving road surface is wet road surface, and the slip rate of the wet road surface falls within the first range, a first control instruction is generated;

[0103] Correspondingly, the step S3: obtaining a corresponding control strategy based on different control instructions to control the first flow field control part to work, specifically including: obtaining a first control strategy based on the first control instruction;

[0104] Based on the first control strategy, the first flow field control part in each wheel cavity is controlled to rotate the flip structure 3 downward by a first angle to reduce the opening area of the wheel port, and a first trigger signal is generated;

[0105] In response to the first trigger signal, the flip structure 3 located at the rear side of the first flow field control part in the wheel cavity of each rear wheel is controlled to rotate downward by a second angle; wherein the second angle is a superimposed angle based on the first angle.

[0106] It can be understood that the application first controls the first flow field control part in each wheel cavity to rotate downward by a first angle to reduce the opening area of the wheel port, thereby reducing the amount of road mud particles being rolled into the wheel cavity, and then inhibiting the existing mud particles in the wheel cavity from overflowing outward, and then, on the basis of the first angle, only the flip structure 3 at the rear side of the wheel cavity is additionally rotated by a second angle to guide the particles to a direction away from the vehicle body, thereby reducing the pollution rate of the rear side wall and the rearview mirror.

[0107] For example, when the rainfall is <10 mm / h, the driving speed is <30 km / h, and the slip rate of the wet road surface is 10%, falling within the range of 8%-15%, a first control instruction is generated; based on the first control instruction, a first control strategy is obtained, the flip structure 3 of the first flow field control part is controlled to flip down 45° from the initial position (i.e., the initial position of the decorative plate 31), and a first trigger signal is generated based on this node, and the flip structure 3 located at the rear side of the wheel cavity in the first flow field control part inside each rear wheel wheel cavity is controlled to continue to flip 20° on the basis of the first angle.

[0108] Further, under the premise of the first control strategy, the following steps are further included:

[0109] When the obtained rainfall is < the first rainfall value, the driving speed is < the first speed, and the driving road surface is a muddy road surface, if the first control strategy is currently executed, a second control instruction is triggered;

[0110] Based on the second control instruction, the first control strategy is adjusted to a second control strategy;

[0111] Based on the second control strategy, the three flip structures 3 of the first flow field control part in each wheel cavity are controlled to continue to flip out a third angle;

[0112] When the rainfall obtained during the execution of the second control strategy is > a second rainfall value, and the driving speed is > a second speed, a third control strategy is triggered; wherein the second rainfall value > the first rainfall value, and the first speed < the second speed;

[0113] Based on the third control strategy, the three flip structures 3 of the first flow field control part in each wheel cavity are controlled to continue to flip out a fourth angle, and a second trigger signal is generated;

[0114] Based on the second trigger signal, target position feature data is started to be collected; wherein the target position feature data at least includes: the feature occlusion rate of the outside rearview mirror mirror surface and the vehicle door side wall;

[0115] When it is detected that the feature occlusion rate of any one target is greater than a first preset value, the three flip structures 3 in the first flow field control part are controlled to flip out a fifth angle in a preset order one by one until the feature occlusion rate of all targets is less than a second preset value;

[0116] Wherein, the preset order is to control the flip structure 3 to flip along the front side, the middle part and the rear side of the wheel cavity in sequence.

[0117] Specifically, when the driving process is in progress, the first control strategy is adjusted to the second control strategy through the computer vision model identifying that the driving surface enters the muddy road. At this time, the three turnover structures 3 of the first flow field control part in each wheel cavity are turned over to 25° outside the wheel opening 25°, the decorative plate 31 of the turnover structure 3 is designed as a baffle, and the large mass of splashed mud particles are intercepted, and under the synergistic action of the outwardly flared decorative plate 31 and the first flow guide part 1, the mud particles are guided to the rear side of the vehicle body. On this basis, if the rainfall > the second rainfall value and the driving speed > the second speed, the third control strategy is triggered, and the three turnover structures 3 of the first flow field control part in each wheel cavity continue to turn over 10° outwardly. At this time, in order to better achieve the mud protection effect and save the vehicle's computing resources, the feature occlusion rate of the outside rearview mirror and the door side is started to be collected. For example, when the mud occlusion rate of the rearview mirror collected by the vision module is greater than 25% through the image segmentation algorithm or the mud occlusion rate of the door side collected by the vision module is greater than 30% through the lightweight semantic segmentation algorithm, the three turnover structures 3 in the first flow field control part are controlled to turn over 10° outwardly in the order of front, middle and rear, and stop when the mud occlusion rate of the rearview mirror is less than 15% and the mud occlusion rate of the door side is less than 20%. For example, the front turnover structure 3 is first controlled to turn over 10° outwardly, then the middle turnover structure 3 is controlled to turn over 10° outwardly, and finally the rear turnover structure 3 is controlled to turn over 10° outwardly. Through this design, the vehicle's computing resources are reduced, the mud protection capability is improved through airflow control, the driving experience is improved, and the safety of driving is ensured.

[0118] In combination Figure 6 It can be seen that Figure 6 is a schematic diagram of the flow field effect of the wheel cavity of a conventional commercial vehicle. As can be seen from the figure, the main concentration area of rain and dirt particles is closer to the cab side and higher in position. By comparison Figure 7 It can be seen that the main concentration area of rain and dirt particles has moved away from the surface of the cab and is lower in position, and flows along a fixed path from the outside of the wheel cavity to the rear of the vehicle body.

[0119] A dirt prevention control system applied to the dirt prevention control method; the dirt prevention control system comprises the following steps:

[0120] A data acquisition module configured to obtain key data during driving; the key data at least includes: environmental data, vehicle operation data and target position feature data;

[0121] A judgment module configured to compare the key data during driving with a preset range to generate a corresponding control instruction;

[0122] The policy control module is configured to obtain a corresponding control policy based on different control instructions to control the first flow field control unit to work.

[0123] It is worth noting that, although the anti-fouling control system only discloses the data acquisition module, the judgment module and the policy control module, it does not mean that the device is limited to the above basic function modules. On the contrary, the meaning expressed by the present application is that on the basis of the above basic function modules, the person skilled in the art can add one or more function modules according to the prior art to form infinite embodiments or technical solutions. That is to say, the system is open rather than closed, and it cannot be considered that the protection scope of the present application is limited to the above disclosed basic function modules just because the present embodiment discloses only individual basic function modules.

[0124] On the other hand, the present application provides an electronic device, comprising: a processor, a communication interface, a memory and a communication bus, wherein the processor, the communication interface and the memory complete the communication among each other through the communication bus.

[0125] The memory stores a computer program, and when the computer program is executed by the processor, the processor executes the steps of the anti-fouling control method.

[0126] On the other hand, the present application provides a computer readable storage medium, which stores a computer program / instruction, and the computer program / instruction is executed by the processor to realize the steps of the anti-fouling control method.

[0127] It should be noted that the user information (including but not limited to user equipment information, user personal information, etc.) and data (including but not limited to data for analysis, stored data, displayed data, etc.) involved in the present application are all information and data authorized by the user or authorized by all parties.

[0128] Those skilled in the art can understand that all or part of the processes in the above-mentioned embodiment methods can be completed by instructing relevant hardware through a computer program. The computer program can be stored in a non-volatile computer readable storage medium, and when the computer program is executed, the processes of the above-mentioned embodiments of each method can be included. Any reference to memory, database or other medium used in each embodiment provided in the present application can include at least one of non-volatile and volatile memory. Non-volatile memory can include read-only memory (ROM), magnetic tape, floppy disk, flash memory, optical storage, high-density embedded non-volatile memory, resistive memory (ReRAM), magnetic variable memory, etc. The volatile memory can include random access memory (RAM) or external cache memory, etc. As an illustration but not limitation, the RAM can be in various forms. The database involved in each embodiment provided in the present application can include at least one of a relational database and a non-relational database. The non-relational database can include a distributed database based on a block chain, etc., and is not limited thereto. The processor involved in each embodiment provided in the present application can be a general-purpose processor, a central processing unit, a graphics processing unit, a digital signal processor, a programmable logic device, a data processing logic device based on quantum computing, etc., and is not limited thereto.

[0129] An emulation platform comprising:

[0130] An electronic device for implementing the steps of the anti-fouling control method;

[0131] A processor, the processor running a program, when the program is running, executing the steps of the anti-fouling control method on data output from the electronic device;

[0132] A storage medium for storing a program, the program, when running, executing the steps of the anti-fouling control method on data output from the electronic device.

[0133] A fender 2 comprising the wheel cavity structure.

[0134] Each technical feature of the above embodiments can be combined arbitrarily. In order to make the description simple, not all possible combinations of each technical feature in the above embodiments are described, however, as long as the combination of these technical features does not exist contradictory, it should be considered as the scope of the present application.

[0135] The above-described embodiments are merely illustrative of several embodiments of the present application, which are described in more detail and in a specific manner, but should not be construed as limiting the scope of the patent of the present application. It should be noted that, for those of ordinary skill in the art, several modifications and improvements can be made without departing from the concept of the present application, and these all belong to the protection scope of the present application. Therefore, the protection scope of the present application should be subject to the appended claims.

Claims

1. A wheel cavity structure, characterized by, The wheel cavity structure comprises: A first flow guide part arranged at a predetermined position of the fender contour, for guiding the flow direction of the wind during driving, so that the outside turbulence generated by the tire rotation is delayed separation; A first flow field control part reversibly arranged at the lower edge of the fender contour, for adjusting the opening area of the outside wheel port of the wheel cavity, and guiding the mud particles in the wheel cavity to flow in a predetermined direction by cooperating with the first flow guide part; The first flow field control part comprises a turnover structure arranged at the lower edge of the fender contour, and the turnover structure is arranged below the first flow guide part; The turnover structure comprises: A decorative plate reversibly arranged at the lower edge of the fender contour; A driving structure arranged inside the fender contour; The output shaft of the driving structure is fixedly connected with the decorative plate, for driving the decorative plate to turn inside and outside along the width direction of the vehicle body in the wheel cavity; the first flow guide part comprises a plurality of flow guide vanes; the plurality of flow guide vanes are uniformly distributed along the predetermined position of the fender above the tire; wherein the predetermined position is the part of the fender contour close to the lower edge; The overall shape of each flow guide vane is A-shaped, and the tip of the A-shaped flow guide vane faces the driving direction of the vehicle; wherein the tail end of each flow guide vane is provided with an inner groove.

2. The wheel cavity structure of claim 1, wherein, The extension line of the direction of the tip of each flow guide vane forms an acute angle with the horizontal plane, and each acute angle ranges from greater than or equal to 20° to less than or equal to 40°.

3. The wheel cavity structure of claim 2, wherein, The first flow field control part comprises: At least three groups of turnover structures continuously arranged at the lower edge of the fender contour, and the at least three groups of turnover structures are arranged below the first flow guide part; Each turnover structure comprises: A decorative plate reversibly arranged at the lower edge of the fender contour; A driving motor arranged inside the fender contour; The output shaft of the driving motor is fixedly connected with the decorative plate, for driving the decorative plate to turn inside and outside along the width direction of the vehicle body in the wheel cavity.

4. The wheel cavity structure according to any one of claims 1-3, wherein, It also comprises a mud blocking part fixedly connected to the vehicle frame at the top; the mud blocking part is arranged at the rear side of the wheel cavity, for discharging the mud particles generated by the tire during driving; A plurality of reinforcing grooves are arranged at the top rear end of the mud blocking part; a plurality of exhaust holes are arranged in the width direction of the vehicle on the upper edge of the mud blocking part; The front end opening of each exhaust hole is arranged obliquely upward toward the front of the vehicle, and the oblique angle is greater than or equal to 20° and less than or equal to 40°, and correspondingly, the rear end opening of each exhaust hole is arranged obliquely downward, and the oblique angle is greater than or equal to 20° and less than or equal to 40°.

5. A method of antifouling control, characterized by, The wheel cavity structure is applied to any one of claims 1-4; the anti-pollution control method comprises the following steps: S1: acquiring key data during driving; the key data at least comprises: environmental data, vehicle operation data and target position characteristic data; S2: comparing the key data during driving with the preset range to generate corresponding control instructions; S3: based on different control instructions, obtaining corresponding control strategies to control the first flow field control part to work.

6. The antifouling control method according to claim 5, characterized by, The environmental data at least comprises: rainfall and road surface data; the road surface data at least comprises: muddy road surface and wet road surface; The vehicle operation data at least comprises: driving speed; The step S2 specifically comprises: When the acquired rainfall < the first rainfall value, the driving speed < the first speed, the driving road surface is a wet road surface, and the slip rate of the wet road surface falls within the first range, a first control instruction is generated; Correspondingly, the step S3 specifically comprises: obtaining a first control strategy based on the first control instruction; Based on the first control strategy, the turning structure of the first flow field control part in each wheel cavity is controlled to turn downward by a first angle to reduce the opening area of the wheel port, and a first trigger signal is generated; In response to the first trigger signal, the turning structure located at the rear side of the wheel cavity in the first flow field control part inside each rear wheel is controlled to turn downward by a second angle; wherein the second angle is a superimposed angle based on the first angle.

7. The antifouling control method according to claim 6, characterized by, Further comprising the following steps: When the acquired rainfall < the first rainfall value, the driving speed < the first speed, and the driving road surface is a muddy road surface, if the first control strategy has been executed, a second control instruction is triggered; Based on the second control instruction, the first control strategy is adjusted to a second control strategy; Based on the second control strategy, at least three turning structures of the first flow field control part in each wheel cavity are controlled to continue to turn outward by a third angle; When the acquired rainfall > a second rainfall value and the driving speed > a second speed during the execution of the second control strategy, a third control strategy is triggered; wherein the second rainfall value > the first rainfall value, and the first speed < the second speed; Based on the third control strategy, at least three turning structures of the first flow field control part in each wheel cavity are controlled to continue to turn outward by a fourth angle, and a second trigger signal is generated; Based on the second trigger signal, target position feature data is started to be collected; wherein the target position feature data at least comprises: feature occlusion rates of the outer rearview mirror surface and the door side wall; When the feature occlusion rate of any one target is detected to be greater than a first preset value, at least three turning structures in the first flow field control part are controlled to turn outward by a fifth angle in a preset order until the feature occlusion rates of all targets are less than a second preset value; Wherein, the preset order is to control the turning structures to turn along the front side, the middle part and the rear side of the wheel cavity in sequence.

8. An antifouling control system characterized by, The anti-fouling control method of any one of claims 5-7 is applied to the anti-fouling control system, which comprises the following steps: A data acquisition module is configured to acquire key data in the driving process; the key data at least comprises: environmental data, vehicle operation data, and target position feature data; A judgment module is configured to compare the key data in the driving process with a preset range to generate corresponding control instructions; A strategy control module is configured to obtain corresponding control strategies based on different control instructions to control the first flow field control part to work.

9. A wing, characterized by The wheel cavity structure of any one of claims 1-4 is included.

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