Wind resistance suite, vehicle and vehicle wind resistance control method

Abstract

The invention relates to a wind resistance kit, a vehicle and a vehicle wind resistance control method. The two ends of a rotating shaft are used for being rotationally connected to two mounting parts, in the width direction of the vehicle, of the inner side of a front face shield; a flexible stop block is mounted on the rotating shaft; the driving assembly is installed on the front face shield and is in transmission connection with the rotating shaft so as to drive the flexible check block to rotate with the rotating shaft as the center to block the gap between the front face shield and the bumper, and therefore when the vehicle speed is high, the flexible check block blocks the gap, and the wind resistance of the whole vehicle is reduced. A large amount of external airflow is effectively prevented from flowing into an engine port, the internal pressure of an engine cabin is effectively reduced, positive pressure borne by parts in the cabin is reduced, and the internal and external pressure difference is reduced, so that wind resistance is reduced, and the fuel economy of the whole vehicle is improved; in addition, during cold start of the vehicle, the gap can be blocked to isolate external cold air, so that the engine quickly enters the optimal working temperature, and the preheating time is shortened.

Description

Technical Field

[0001] The present application relates to the field of vehicle exterior decorative parts, and in particular to a wind resistance kit, a vehicle, and a vehicle wind resistance control method. Background Art

[0002] At present, because the front hood is a part suspended above the cab and the bumper is a part suspended below, the front hood and the bumper will have relative movement. In order to ensure that the front hood and the bumper do not interfere with each other during the driving of the vehicle, a safety gap of about 40mm is generally required between the two. Moreover, due to the need for air intake inside the engine compartment, the gap here is opened, and there is no filler between the front hood and the bumper to fill the gap.

[0003] In the related art, a safety gap needs to be reserved between the lower end of the front hood and the bumper, and there is no corresponding filler or parts to cover this gap. As a result, when the vehicle is driving at high speed, the external airflow enters the engine compartment through the gap between the lower end of the front hood and the bumper, resulting in a large pressure difference between the inside and outside, and poor wind resistance characteristics of the whole vehicle.

[0004] In addition, for commercial vehicles, the second half of the cold-start engine at rest needs to be preheated for a period of time to allow the engine to quickly reach the optimal operating temperature; this operation is particularly important when the external environment is low temperature; however, the safety gap reserved at the bottom of the front cover and the bumper will cause the engine heat to leak out, prolonging the preheating time and increasing fuel consumption. Summary of the invention

[0005] The embodiments of the present application provide a wind resistance kit, a vehicle, and a vehicle wind resistance control method to solve the problems in the related art of a safety gap reserved at the matching position between the lower end of the front cover and the bumper, poor wind resistance characteristics of the whole vehicle during high-speed driving, and a long time for the engine to reach the optimal operating temperature after a cold start.

[0006] In a first aspect, a wind resistance kit is provided, comprising:

[0007] A rotating shaft, which is arranged along the width direction of the vehicle, and whose two ends are rotatably connected to two mounting parts on the inner side of the front cover;

[0008] A flexible stopper mounted on the rotating shaft;

[0009] The drive assembly is used to be installed on the front cover and is connected to the rotating shaft; the drive assembly is used to drive the flexible block to rotate around the rotating shaft to block the gap between the front cover and the bumper. Through the above settings, the vehicle after the wind resistance kit is installed on the front cover can perform the following operations: when the vehicle speed is high, the flexible block blocks the gap to reduce the wind resistance of the whole vehicle; effectively block the external airflow from flowing into the engine cabin, effectively reduce the internal pressure of the engine cabin, reduce the positive pressure on the internal components of the cabin, reduce the internal and external pressure difference, and improve the fuel economy of the whole vehicle; in addition, when the vehicle is cold-started, the gap can be blocked to isolate the external cold air, so that the engine can quickly reach the optimal operating temperature, reduce the preheating time, and improve the fuel economy of the whole vehicle.

[0010] In some embodiments, the shaft includes multiple shaft segments in the vehicle width direction, and two adjacent shaft segments are connected by universal joints. The universal joints designed above allow the shaft to achieve contoured settings while ensuring rotation, matching the front mask; ensuring that the flexible block of the wind resistance kit is better fitted with the bumper after rotation, so as to improve the sealing effect and ensure the effect of reducing the wind resistance of the vehicle and reducing the internal and external pressure difference.

[0011] In some embodiments, one of the flexible stoppers is provided on each shaft segment;

[0012] The flexible stopper comprises a cylindrical connecting portion, on which a first rib portion and a second rib portion are provided; in the radial direction of the rotating shaft section, the length of the first rib portion is greater than the length of the second rib portion;

[0013] The first flange portion is used to contact the bumper; the second flange portion is used to contact the front mask. The above structure of the flexible block can reduce the material and weight of the flexible block while ensuring the sealing effect. After the shaft section rotates, the second flange portion overlaps and fits the front mask, and the first flange portion overlaps and fits the bumper; in addition, the setting of the cylindrical connecting portion can also ensure the strength of the overall structure of the flexible block, so that under high speed conditions, the degree of deformation after being compressed is suppressed, resulting in a poor sealing effect.

[0014] Of course, the cross-section of the first and second sidewalls in the vehicle width direction is in an arc shape, and the angle between the first and second sidewalls is an acute angle. The arc shape and the flexibility can make the fit with the bumper and the front cover higher.

[0015] In some embodiments, the cross-sections of the first side rib portion and the second side rib portion in the vehicle width direction are arc-shaped; and the angle between the first side rib portion and the second side rib portion is an acute angle.

[0016] In some embodiments, the flexible stopper is made of rubber material.

[0017] In some embodiments, the wind resistance kit further includes a mounting plate, which is mounted on the inner side of the front mask; the mounting portion is provided on the mounting plate, and a drive assembly connection area is provided.

[0018] In some embodiments, the driving assembly includes a driving motor, and a first gear is disposed on an output shaft of the driving motor;

[0019] Among the plurality of rotating shaft segments, one rotating shaft segment is provided with a second gear, and the second gear meshes with the first gear, so that the wind resistance control kit can be realized by using one driving assembly, thereby reducing the cost.

[0020] In a second aspect, a vehicle is provided, comprising:

[0021] Wind resistance kit; the rotating shaft of the wind resistance kit is rotatably connected to the front mask; the driving assembly is installed on the inner side of the front mask and connected to the vehicle power supply;

[0022] A control device is connected to the driving assembly and is used to obtain the vehicle speed; the control device is used to control the rotation angle of the rotating shaft according to the vehicle speed.

[0023] In a second aspect, a vehicle wind resistance control method is provided, which comprises the following steps:

[0024] Provision of vehicles;

[0025] Obtaining the speed of the vehicle, and comparing the speed of the vehicle with a set threshold;

[0026] If the vehicle speed is greater than a set threshold, the control device controls the drive assembly to drive the rotating shaft to rotate a set angle so that the flexible block blocks the gap between the front cover and the bumper;

[0027] If the vehicle speed is greater than zero and less than the set threshold, the control device controls the drive assembly to drive the shaft to rotate so that the flexible block is reset to the initial position. When the vehicle speed is high, the flexible block blocks the gap to reduce the wind resistance of the vehicle; effectively blocks the large amount of external airflow flowing into the engine cabin, effectively reduces the internal pressure of the engine compartment, reduces the positive pressure on the internal components of the cabin, reduces the internal and external pressure difference, and improves the fuel economy of the vehicle; in addition, when the vehicle is cold-started, the gap can be blocked to isolate the external cold air, so that the engine quickly reaches the optimal operating temperature, reduces the preheating time, and improves the fuel economy of the vehicle.

[0028] In some embodiments, the control device is further used to obtain the engine start / stop state and the real-time temperature of the engine;

[0029] Comparing the vehicle speed with a set threshold value also includes the following steps:

[0030] If the temperature is less than the set threshold and the vehicle speed is zero, the auxiliary preheating mode is entered; the auxiliary preheating mode includes the following steps:

[0031] Determine whether the engine start-stop state is a stop state;

[0032] When in the stopped state, the control device controls the driving assembly to drive the rotating shaft to rotate at a set angle so that the flexible block blocks the gap between the front cover and the bumper;

[0033] When the engine is in the startup state and the real-time temperature of the engine is lower than the optimal operating temperature, the control device controls the flexible stopper to block the gap between the front cover and the bumper;

[0034] When the engine is in the starting operation state and the real-time temperature of the engine is higher than the optimal operating temperature, the flexible stopper is controlled by the control device to reset to the initial position.

[0035] The beneficial effects of the technical solution provided by this application include:

[0036] The embodiments of the present application provide a wind resistance kit, a vehicle, and a vehicle wind resistance control method. The two ends of the rotating shaft are used to rotate and connect to two mounting parts on the inner side of the front cover in the width direction of the vehicle; a flexible block is installed on the rotating shaft; a driving assembly is installed on the front cover and is connected to the rotating shaft to drive the flexible block to rotate around the rotating shaft to block the gap between the front cover and the bumper, so that when the vehicle speed is high, the flexible block blocks the gap to reduce the wind resistance of the entire vehicle; effectively blocks a large amount of external airflow from flowing into the engine cabin, effectively reduces the internal pressure of the engine cabin, reduces the positive pressure on the internal components of the cabin, reduces the internal and external pressure difference, thereby reducing wind resistance and improving the fuel economy of the entire vehicle; in addition, when the vehicle is cold-started, the gap can be blocked to isolate the external cold air, so that the engine can quickly reach the optimal operating temperature and reduce the preheating time. BRIEF DESCRIPTION OF THE DRAWINGS

[0037] In order to more clearly illustrate the technical solutions in the embodiments of the present application, the drawings required for use in the description of the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present application. For ordinary technicians in this field, other drawings can be obtained based on these drawings without creative work.

[0038] Figure 1 A schematic diagram of a three-dimensional structure of a wind resistance kit provided between the front cover and the bumper of a vehicle provided in an embodiment of the present application;

[0039] Figure 2 An exploded schematic diagram of a wind resistance kit provided between the front cover and the bumper of a vehicle provided in an embodiment of the present application;

[0040] Figure 3 A schematic diagram of the connection between the flexible stopper, the rotating shaft and the driving assembly of the wind resistance kit provided in an embodiment of the present application;

[0041] Figure 4 A schematic diagram of the connection between multiple shaft segments of a shaft provided in an embodiment of the present application;

[0042] Figure 5 A schematic diagram of an unsealed gap of a flexible stopper provided in an embodiment of the present application;

[0043] Figure 6 A schematic diagram of a flexible stopper sealing gap provided in an embodiment of the present application;

[0044] Figure 7 A schematic diagram of a flow chart of a vehicle wind resistance control method provided in an embodiment of the present application;

[0045] Figure 8 A schematic diagram comparing the pressure cloud diagram of the CFD simulation analysis before the sealing gap and the pressure cloud diagram of the CFD simulation analysis after the sealing gap provided in an embodiment of the present application.

[0046] In the figure: 1, rotating shaft; 100, rotating shaft section; 101, universal joint; 102, second gear; 2, front mask; 3, flexible stopper; 300, cylinder connecting part; 301, first flange part; 302, second flange part; 4, driving assembly; 400, driving motor; 401, first gear; 5, bumper; 6, mounting plate. DETAILED DESCRIPTION

[0047] In order to make the purpose, technical solution and advantages of the embodiments of the present application clearer, the technical solution in the embodiments of the present application will be clearly and completely described below in conjunction with the drawings in the embodiments of the present application. Obviously, the described embodiments are part of the embodiments of the present application, not all of the embodiments. Based on the embodiments in the present application, all other embodiments obtained by ordinary technicians in this field without making creative work are within the scope of protection of this application.

[0048] At present, because the front hood is a part suspended above the cab and the bumper is a part suspended below, the front hood and the bumper will have relative movement. In order to ensure that the front hood and the bumper do not interfere with each other during the driving of the vehicle, a safety gap of about 40mm is generally required between the two. Moreover, due to the need for air intake inside the engine compartment, the gap here is opened, and there is no filler between the front hood and the bumper to fill the gap.

[0049] In the related art, a safety gap needs to be reserved between the lower end of the front hood and the bumper, and there is no corresponding filler or parts to cover this gap. As a result, when the vehicle is driving at high speed, the external airflow enters the engine compartment through the gap between the lower end of the front hood and the bumper, resulting in a large pressure difference between the inside and outside, and poor wind resistance characteristics of the whole vehicle.

[0050] In addition, for commercial vehicles, the second half of the cold-start engine at rest needs to be preheated for a period of time to allow the engine to quickly reach the optimal operating temperature; this operation is particularly important when the external environment is low temperature; however, the safety gap reserved at the bottom of the front cover and the bumper will cause the engine heat to leak out, prolonging the preheating time and increasing fuel consumption.

[0051] The embodiment of the present application provides a wind resistance kit, a vehicle, and a vehicle wind resistance control method to solve the problems in the related art of the safety gap reserved at the matching position between the lower end of the front cover and the bumper, the poor wind resistance characteristics of the whole vehicle during high-speed driving, and the long time it takes for the vehicle to reach the optimal operating temperature of the engine after cold start. The following is an explanation of each of the product structure and control method.

[0052] First, see Figure 1-Figure 2 ,as well as Figure 5 and Figure 6 , a wind resistance kit, comprising:

[0053] A rotating shaft 1 is arranged along the width direction of the vehicle, and its two ends are connected to two mounting parts on the inner side of the front cover 2 in the width direction of the vehicle for rotation;

[0054] A flexible stopper 3, which is mounted on the rotating shaft 1;

[0055] The driving assembly 4 is used to be installed on the front mask 2 and is in driving connection with the rotating shaft 1; the driving assembly 4 is used to drive the flexible stopper 3 to rotate around the rotating shaft 1 to block the gap between the front mask 2 and the bumper 5.

[0056] Through the above settings, after the wind resistance kit is installed on the front cover 2 of the vehicle, the following operations can be performed: when the vehicle speed is high, the flexible block 3 is used to block the gap to reduce the wind resistance of the entire vehicle; the external airflow is effectively blocked from flowing into the engine compartment in large quantities, the internal pressure of the engine compartment is effectively reduced, the positive pressure on the internal components of the compartment is reduced, the internal and external pressure difference is reduced, and the fuel economy of the entire vehicle is improved; in addition, when the vehicle is cold-started, the gap can be blocked to isolate the external cold air, so that the engine can quickly reach the optimal operating temperature, reduce the preheating time, and improve the fuel economy of the entire vehicle.

[0057] Among them, in order to verify the effect of reducing the internal and external pressure difference, you can refer to Figure 8The CFD simulation analysis verification results shown, that is, the CFD simulation analysis pressure cloud diagram, from which it can be clearly seen that the positive pressure on the internal components of the cabin is reduced.

[0058] In some preferred embodiments, since the front cover 2 is of arc-shaped design, the rotating shaft 1 in the present solution is designed to include a plurality of rotating shaft segments 100 in the vehicle width direction, and the rotating shaft segments 100 of adjacent position segments are connected by a universal joint 101 to ensure that the flexible block 3 of the wind resistance kit is better fitted with the bumper after rotation.

[0059] Through the above-designed universal joint 101, the rotating shaft 1 can realize the contour setting while ensuring rotation, and cooperate with the front cover 2; ensure that the wind resistance kit flexible block 3 is better fitted with the bumper after rotation, so as to improve the sealing effect and ensure the effect of reducing the wind resistance of the whole vehicle and reducing the internal and external pressure difference. Figure 3 and Figure 4 The content shown.

[0060] Further, in order to ensure the sealing effect and reduce the preparation material of the flexible stopper 3, refer to Figure 5 and Figure 6 , with the following settings:

[0061] A flexible stopper 3 is provided on each rotating shaft segment 100;

[0062] The flexible stopper 3 comprises a cylindrical connecting portion 300, on which a first rib portion 301 and a second rib portion 302 are provided; in the radial direction of the rotating shaft section 100, the length of the first rib portion 301 is greater than the length of the second rib portion 302;

[0063] The first flange portion 301 is used to contact the bumper 5 ; the second flange portion 302 is used to contact the front cover 2 .

[0064] The structure of the flexible stopper 3 can achieve the reduction of the material and weight of the flexible stopper 3 while ensuring the sealing effect. After the rotating shaft section 100 rotates, the second flange portion 302 overlaps and fits with the front mask 2, and the first flange portion 301 overlaps and fits with the bumper 5; in addition, the setting of the cylindrical connecting portion 300 can also ensure the strength of the overall structure of the flexible stopper 3, so that under high speed conditions, the degree of deformation after being compressed is suppressed, resulting in a poor sealing effect.

[0065] Of course, the cross-section of the first rib portion 301 and the second rib portion 302 in the vehicle width direction is in an arc shape, and the angle between the first rib portion 301 and the second rib portion 302 is an acute angle. The arc shape and the flexibility can make the bumper 5 and the front cover 2 fit more closely.

[0066] The above flexible stopper 3 is made of rubber material, and of course the present application does not exclude other flexible sealing materials.

[0067] In some preferred embodiments, the wind resistance kit further includes a mounting plate 6, which is mounted on the inner side of the front mask 2; the mounting plate 6 is provided with a mounting portion and a connection area for the drive assembly 4. The mounting plate 6 is provided in consideration of the problem that the overall structure of the front mask 2 may be damaged after the wind resistance kit is installed, and the problem of the complexity of installing the wind resistance kit. The wind resistance kit can be installed on the inner side of the front mask 2 in advance through the mounting plate 6, and after the front mask 2 is installed, the wind resistance kit is also installed.

[0068] In some preferred embodiments, see Figure 3 As shown, in order to realize the wind resistance control kit by using only one drive assembly 4 and reduce the cost, the following settings are provided:

[0069] The driving assembly 4 includes a driving motor 400, and a first gear 401 is provided on the output shaft of the driving motor 400;

[0070] Among the multiple shaft segments 100, one shaft segment 100 is provided with a second gear 102, which meshes with the first gear 401. The driving motor 400 is a stepping motor with a self-locking function, so as to prevent the shaft 1 from rotating after being compressed and affecting the sealing effect.

[0071] In a second aspect, a vehicle is provided, comprising:

[0072] The wind resistance kit described above; the shaft 1 of the wind resistance kit is rotatably connected to the front mask 2; the drive assembly 4 is mounted on the inner side of the front mask 2 and is connected to the vehicle power supply;

[0073] The control device is connected to the driving assembly 4 and is used to obtain the vehicle speed; the control device is used to control the rotation angle of the rotating shaft 1 according to the vehicle speed.

[0074] The control device is also used to obtain the engine start / stop status and the real-time engine temperature.

[0075] When the vehicle is traveling at a high speed, the flexible block 3 blocks the gap to reduce the wind resistance of the entire vehicle; it effectively blocks a large amount of external airflow from flowing into the engine compartment, effectively reduces the internal pressure of the engine compartment, reduces the positive pressure on the internal components of the compartment, reduces the internal and external pressure difference, and improves the fuel economy of the entire vehicle; in addition, when the vehicle is cold-started, the gap can be blocked to isolate the external cold air, so that the engine can quickly reach the optimal operating temperature, reduce the preheating time, and improve the fuel economy of the entire vehicle.

[0076] Among them, in order to verify the effect of reducing the internal and external pressure difference, you can refer to Figure 8The CFD simulation analysis verification results shown, that is, the CFD simulation analysis pressure cloud diagram, from which it can be clearly seen that the positive pressure on the internal components of the cabin is reduced.

[0077] It should be understood that the set angle refers to the best angle for sealing the gap between the front cover 2 and the bumper 5, because if the rotating shaft 1 rotates excessively, the sealing effect will be poor.

[0078] The control device may include a processor, a memory, a communication interface, and a communication bus.

[0079] Among them, the communication bus can be of any type, which is used to realize the interconnection of the processor, the memory and the communication interface. The communication interface includes an input / output (I / O) interface, a physical interface and a logical interface, etc., which are used to realize the interconnection of devices inside the vehicle wind resistance control device, and an interface for realizing the interconnection of the vehicle wind resistance control device with other devices (such as other computing devices or user devices). The physical interface can be an Ethernet interface, an optical fiber interface, an ATM interface, etc.; the user device can be a display (Display), a keyboard (Keyboard), etc. The memory can be various types of storage media, such as random access memory (RAM), read-only memory (ROM), non-volatile RAM (NVRAM), flash memory, optical memory, hard disk, programmable ROM (PROM), erasable PROM (EPROM), electrically erasable PROM (EEPROM), etc. The processor can be a general-purpose processor, which can call the program stored in the memory and execute the vehicle wind resistance control method provided in the embodiment of the present application. For example, a general purpose processor may be a central processing unit (CPU).

[0080] In a third aspect, a vehicle wind resistance control method is provided, which comprises the following steps:

[0081] Step 100, providing a vehicle having the above;

[0082] Step 101: Obtain the speed of the vehicle, and compare the speed of the vehicle with a set threshold;

[0083] Step 102, if the vehicle speed is greater than a set threshold, the control device controls the drive assembly 4 to drive the rotating shaft 1 to rotate a set angle so that the flexible block 3 blocks the gap between the front cover 2 and the bumper 5; the set threshold is 90 km / h;

[0084] Step 103 : If the vehicle speed is greater than zero and less than a set threshold, the control device controls the driving assembly 4 to drive the rotating shaft 1 to rotate so that the flexible stopper 3 is reset to the initial position.

[0085] In some preferred embodiments, the control device is further used to obtain the engine start / stop state and the real-time temperature of the engine;

[0086] Comparing the vehicle speed with a set threshold value also includes the following steps:

[0087] Step 104: If the temperature is less than the set threshold and the vehicle speed is zero, enter the auxiliary preheating mode; the auxiliary preheating mode includes the following steps:

[0088] Determine whether the engine start-stop state is a stop state;

[0089] When it is in the stopped state, the control device controls the driving assembly 4 to drive the rotating shaft 1 to rotate at a set angle, so that the flexible stopper 3 blocks the gap between the front cover 2 and the bumper 5;

[0090] When the engine is in the startup state and the real-time temperature of the engine is lower than the optimal operating temperature, the control device controls the flexible stopper 3 to block the gap between the front cover 2 and the bumper 5;

[0091] When the engine is in the startup state and the real-time temperature of the engine is higher than the optimal operating temperature, the flexible stopper 3 is controlled by the control device to reset to the initial position.

[0092] The initial position in the reset back to the initial position refers to Figure 5 The position of the flexible stop 3 is shown.

[0093] The above control method achieves the following effects:

[0094] (1) Automatically identify vehicle speed. Under high-speed conditions, the wind resistance kit seals and blocks the gap between the front cover 2 and the upper end of the bumper 5 to reduce the wind resistance of the entire vehicle. In addition, it also blocks the external airflow from flowing into the engine compartment during driving, reducing the pressure difference between the inside and outside, thereby reducing wind resistance and improving the fuel economy of the entire vehicle.

[0095] (2) When the engine is started when the vehicle is stationary, the wind resistance kit isolates the external cold air, allowing the engine to quickly reach the optimal operating temperature, reducing the warm-up time and improving the fuel economy of the vehicle.

[0096] (3) In addition, the auxiliary preheating mode is accurately implemented, and the engine start-stop status and the real-time engine temperature are controlled in real time to avoid the erroneous operation of the wind resistance kit when the engine has reached the optimal operating temperature when the vehicle is stationary. It also realizes accurate differentiation and control of high-speed sealing to reduce wind resistance and preheating during cold start.

[0097] The above vehicles are distinguished by their common features, purpose of use and functions; for example, cars / trucks / buses / trailers / incomplete vehicles and motorcycles are all separate types. Of course, they can also be roughly divided into new energy vehicles and fuel vehicles according to different energy types.

[0098] In the description of the present application, it should be noted that the terms "upper", "lower", etc. indicate orientations or positional relationships based on the orientations or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present application and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation on the present application. Unless otherwise clearly specified and limited, the terms "installed", "connected", and "connected" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection, or it can be an indirect connection through an intermediate medium, or it can be a connection between the two elements. For those of ordinary skill in the art, the specific meanings of the above terms in the present application can be understood according to the specific circumstances.

[0099] It should be noted that, in this application, relational terms such as "first" and "second" are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Moreover, the terms "include", "comprise" or any other variants thereof are intended to cover non-exclusive inclusion, so that a process, method, article or device including a series of elements includes not only those elements, but also other elements not explicitly listed, or also includes elements inherent to such process, method, article or device. In the absence of further restrictions, the elements defined by the sentence "comprise a ..." do not exclude the presence of other identical elements in the process, method, article or device including the elements.

[0100] The above description is only a specific implementation of the present application, so that those skilled in the art can understand or implement the present application. Various modifications to these embodiments will be apparent to those skilled in the art, and the general principles defined herein can be implemented in other embodiments without departing from the spirit or scope of the present application. Therefore, the present application will not be limited to the embodiments shown herein, but will conform to the widest range consistent with the principles and novel features applied for herein.

Claims

1. A wind resistance kit, characterized in that: It includes: A rotating shaft (1) is arranged along the width direction of the vehicle, and its two ends are used for rotationally connecting to two mounting parts on the inner side of the front cover (2); A flexible stopper (3) mounted on the rotating shaft (1); A drive assembly (4) is installed on the front cover (2) and is connected to the rotating shaft (1) in a transmission manner; the drive assembly (4) is used to drive the flexible stopper (3) to rotate around the rotating shaft (1) to block the gap between the front cover (2) and the bumper (5).

2. The wind resistance kit according to claim 1, characterized in that: The rotating shaft (1) comprises a plurality of rotating shaft sections (100) in the vehicle width direction, and two adjacent rotating shaft sections (100) are connected via a universal joint (101).

3. The wind resistance kit according to claim 2, characterized in that: A flexible stopper (3) is provided on each rotating shaft segment (100); The flexible stopper (3) comprises a cylindrical connecting portion (300), on which a first rib portion (301) and a second rib portion (302) are provided; in the radial direction of the rotating shaft section (100), the length of the first rib portion (301) is greater than the length of the second rib portion (302); The first rib portion (301) is used to contact the bumper (5); and the second rib portion (302) is used to contact the front cover (2).

4. The wind resistance kit according to claim 3, characterized in that: The cross-sections of the first side rib (301) and the second side rib (302) in the vehicle width direction are arc-shaped; and the angle between the first side rib (301) and the second side rib (302) is an acute angle.

5. The wind resistance kit according to claim 1, characterized in that: The flexible stopper (3) is made of rubber material.

6. The wind resistance kit according to claim 1, characterized in that: The wind resistance kit also includes a mounting plate (6), which is mounted on the inner side of the front mask (2); the mounting portion is provided on the mounting plate (6), and a drive assembly (4) connection area is provided.

7. The wind resistance kit according to claim 2, characterized in that: The driving assembly (4) comprises a driving motor (400), and a first gear (401) is provided on the output shaft of the driving motor (400); Among the plurality of rotating shaft segments (100), one rotating shaft segment (100) is provided with a second gear (102), and the second gear (102) is meshed with the first gear (401).

8. A vehicle, characterized in that: It includes: The wind resistance kit according to any one of claims 1 to 7; The rotating shaft (1) of the wind resistance kit is rotatably connected to the front cover (2); the driving assembly (4) is installed on the inner side of the front cover (2) and is connected to the vehicle power supply; A control device is connected to the driving assembly (4) and is used to obtain the vehicle speed; the control device is used to control the rotation of the rotating shaft (1) to a set angle according to the vehicle speed.

9. A vehicle wind resistance control method, characterized in that: It includes the following steps: Providing a vehicle as claimed in claim 8; Obtaining the speed of the vehicle, and comparing the speed of the vehicle with a set threshold; If the vehicle speed is greater than a set threshold, the control device controls the driving assembly (4) to drive the rotating shaft (1) to rotate at a set angle, so that the flexible stopper (3) blocks the gap between the front cover (2) and the bumper (5); If the vehicle speed is greater than zero and less than a set threshold, the control device controls the drive assembly (4) to drive the rotating shaft (1) to rotate, so that the flexible stopper (3) is reset to the initial position.

10. The vehicle wind resistance control method according to claim 9, characterized in that: The control device is also used to obtain the engine start / stop state and the real-time temperature of the engine; Comparing the vehicle speed with a set threshold value also includes the following steps: If the temperature is less than the set threshold and the vehicle speed is zero, the auxiliary preheating mode is entered; the auxiliary preheating mode includes the following steps: Determine whether the engine start-stop state is a stop state; When the vehicle is in a stopped state, the control device controls the driving assembly (4) to drive the rotating shaft (1) to rotate at a set angle, so that the flexible stopper (3) blocks the gap between the front cover (2) and the bumper (5); When the engine is in the startup state and the real-time temperature of the engine is lower than the optimal operating temperature, the control device controls the flexible stopper (3) to block the gap between the front cover (2) and the bumper (5); When the engine is in the startup running state and the real-time temperature of the engine is higher than the optimal working temperature, the flexible stopper (3) is controlled by the control device to reset back to the initial position.

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