A device to improve vehicle handling performance on wet roads.

Abstract

This invention provides a device for improving vehicle handling performance on slippery roads. It includes an intake pipe assembly, a connecting pipe assembly, and an exhaust pipe assembly. The intake pipe assembly is located at the front of the vehicle and opposite the wheels, with its air inlet facing the vehicle's forward direction. The intake pipe assembly, connecting pipe assembly, and exhaust pipe assembly are connected sequentially from front to back, with the connecting pipe assembly and exhaust pipe assembly arranged at a downward angle. The exhaust pipe assembly's outlet faces the road surface in the direction of wheel travel. Air entering the intake pipe assembly through the air inlet is accelerated and ejected from the outlet to blow away accumulated water on the road surface in the direction of wheel travel. This invention ensures that the water drainage effect between the tires and the road surface does not decrease with increasing vehicle speed but rather continuously increases with speed, thereby improving water drainage efficiency and vehicle handling performance on slippery roads.

Description

Technical Field

[0001] This invention belongs to the field of vehicle anti-skid technology, specifically relating to a device for improving the handling performance of vehicles on wet and slippery roads. Background Technology

[0002] Tires are circular, elastic rubber products that roll and come into contact with the ground, mounted on various vehicles or machinery. They are typically mounted on metal rims, supporting the vehicle body, cushioning external impacts, ensuring contact with the road surface, and guaranteeing vehicle performance. Tires are often used under complex and harsh conditions, enduring various deformations, loads, forces, and extreme temperatures during driving. Therefore, they must possess high load-bearing capacity, traction, and cushioning performance. If a vehicle is traveling on a wet road, the tires may lose traction and slip due to the wet conditions. The main reason for slippage is the presence of water between the road surface and the tire tread. Acceleration or braking can lead to a loss of traction and grip, especially during cornering, which can result in loss of steering control.

[0003] Existing technologies typically involve designing the tire tread shape to accelerate water drainage between the tire and the road surface on wet roads. However, this approach has significant limitations, as it's difficult to completely drain water. This is because the dimensions of the grooves on the tire tread are fixed, limiting the volume of water that can be drained. Consequently, the water drainage effect is limited, and it deteriorates with increasing vehicle speed, resulting in poor vehicle handling. Therefore, designing a device to improve vehicle handling on slippery roads and enhance water drainage so that the drainage effect between the wheels and the road surface increases with speed, rather than decreasing with speed, has become a pressing technical problem for those skilled in the art. Summary of the Invention

[0004] The purpose of this invention is to provide a device for improving the handling performance of vehicles on wet and slippery roads, so as to solve the above-mentioned technical problems in the prior art.

[0005] To achieve the above objectives, the present invention provides the following technical solution:

[0006] A device for improving vehicle handling performance on slippery roads includes an intake pipe assembly 3, a connecting pipe assembly, and an exhaust pipe assembly. The intake pipe assembly is located at the front of the vehicle and opposite the wheels, with the intake port facing the vehicle's forward direction. The intake pipe assembly, the connecting pipe assembly, and the exhaust pipe assembly are connected sequentially from front to back, with the connecting pipe assembly and the exhaust pipe assembly arranged at a downward angle. The exhaust port of the exhaust pipe assembly faces the road surface in the direction of wheel travel. After air enters the intake pipe assembly through the intake port, its flow velocity is accelerated, and it is ejected from the exhaust port to blow away accumulated water on the road surface in the direction of wheel travel.

[0007] Preferably, the intake pipe assembly includes a first intake pipe, a second intake pipe, and an intake transition pipe. The diameter of the first intake pipe is larger than the diameter of the second intake pipe. The first intake pipe is horizontally arranged, and the second intake pipe is inclined downward. The first intake pipe and the second intake pipe are connected by the intake transition pipe.

[0008] Preferably, the vent assembly includes a vent connecting section, a vent transition section, a vent main cavity section, and a vent pipe connected in sequence. The diameter of the vent main cavity section is larger than the diameter of the vent connecting section. The vent connecting section and the vent main cavity section are connected through the vent transition section. The diameter of the vent pipe is smaller than the diameter of the vent main cavity section. The vent outlet of the vent pipe is the vent outlet of the connecting pipe assembly. The vent inlet of the vent connecting section is connected to the connecting pipe assembly.

[0009] Preferably, there are multiple air outlet pipes, and the air outlet of each air outlet pipe faces a different part of the road surface in the direction of wheel travel.

[0010] Preferably, there are two air outlet assemblies, which are located on the left and right sides of the longitudinal center plane of the wheel, respectively. The air outlet of the air outlet assembly on the left faces the right side of the road surface in the direction of wheel travel, so as to use the air it sprays to blow away the water on the right side of the road surface in the direction of wheel travel; the air outlet of the air outlet assembly on the right faces the left side of the road surface in the direction of wheel travel, so as to use the air it sprays to blow away the water on the left side of the road surface in the direction of wheel travel.

[0011] Preferably, the connecting pipe assembly includes a main connecting pipe and two branch connecting pipes. The front end of the main connecting pipe is connected to the outlet end of the second air inlet pipe, and the rear end of the main connecting pipe is connected to the inlet ends of the outlet connecting sections of the two air outlet pipe assemblies through the two branch connecting pipes respectively.

[0012] Preferably, at least one of the intake manifold assembly and the connecting pipe assembly is a Laval pipe for generating the Laval effect.

[0013] Preferably, it further includes a longitudinal drive mechanism for adjusting the position of the exhaust pipe assembly in the front-rear direction; the connecting pipe assembly is a flexible component.

[0014] Preferably, it further includes a lateral drive mechanism for adjusting the position of the air outlet assembly in the left-right direction; the connecting pipe assembly is a flexible component.

[0015] Preferably, it further includes a vertical drive mechanism for adjusting the position of the air outlet assembly in the vertical direction, and the connecting pipe assembly is a flexible component.

[0016] The beneficial effects of this invention are as follows:

[0017] The device for improving vehicle handling performance on slippery roads according to the present invention, in use, allows air to enter the intake manifold assembly through the intake port, where its flow rate is accelerated, and then ejected from the exhaust port of the exhaust manifold assembly. The high-speed airflow blows away water accumulated on the road surface in the direction of wheel travel, thereby improving the water drainage effect. At the same time, the higher the vehicle speed, the greater the flow rate of the air entering the intake manifold assembly, which results in a higher flow rate of the air ejected from the exhaust port after acceleration, making the water drainage effect even better. In other words, the water drainage effect between the wheels and the road surface does not decrease with increasing vehicle speed, but rather continuously increases with increasing vehicle speed, thereby effectively improving the vehicle's handling performance on slippery roads. Attached Figure Description

[0018] To more clearly illustrate the technical solutions in the embodiments of this application or the prior art, the drawings used in the embodiments will be briefly described below, and the specific embodiments of the present invention will be further described in detail with reference to the drawings, wherein...

[0019] Figure 1 A schematic diagram of the device for improving vehicle handling performance on wet and slippery surfaces provided in this embodiment of the invention when used on a vehicle;

[0020] Figure 2 Another schematic diagram of the device for improving vehicle handling performance on wet and slippery surfaces provided in this embodiment of the invention when used on a vehicle;

[0021] Figure 3 A cross-sectional view of an embodiment of the intake manifold assembly provided by the present invention;

[0022] Figure 4 An isometric view of an embodiment of the intake manifold assembly provided by the present invention;

[0023] Figure 5 Another isometric view of an embodiment of the intake manifold assembly provided by the present invention;

[0024] Figure 6 A schematic diagram of an embodiment of the connecting pipe assembly provided by the present invention;

[0025] Figure 7 This is another schematic diagram of an embodiment of the connecting pipe assembly provided by the present invention;

[0026] Figure 8 This is a schematic diagram of the air outlet pipe assembly provided in an embodiment of the present invention;

[0027] Figure 9 A schematic diagram illustrating the principle of the device for draining accumulated water provided in an embodiment of the present invention;

[0028] Figure 10 A schematic diagram of the road surface before the water is removed in the direction of wheel travel, provided in an embodiment of the present invention.

[0029] Figure 11 A schematic diagram showing the removal of water from the road surface in the direction of wheel travel, provided in an embodiment of the present invention.

[0030] Figure 12 A schematic diagram of another embodiment of the intake manifold assembly provided by the present invention;

[0031] Figure 13 This is a schematic diagram showing the connection between the intake manifold assembly and the connecting pipe assembly according to another embodiment of the present invention.

[0032] Figure 14 A schematic diagram of the air blowing direction of an air outlet for blowing air onto a wheel, provided in an embodiment of the present invention;

[0033] Figure 15 Another schematic diagram of the blowing direction of the air outlet for blowing air onto the wheel provided in an embodiment of the present invention;

[0034] Figure 16 A schematic diagram of the longitudinal drive mechanism provided in an embodiment of the present invention used in the device;

[0035] Figure 17 A schematic diagram of the lateral drive mechanism provided in an embodiment of the present invention used in the device;

[0036] Figure 18 This is a schematic diagram of the vertical drive mechanism provided in an embodiment of the present invention when used on the device.

[0037] Marked in the attached diagram:

[0038] 1. Vehicle; 2. Wheel; 21. Longitudinal center plane of the wheel;

[0039] 3. Intake pipe assembly; 31. Intake port; 32. Outlet end of intake pipe assembly.

[0040] 33. First intake pipe; 34. Intake transition pipe; 35. Second intake pipe;

[0041] 4. Connecting pipe assembly; 41. Air inlet end of connecting pipe assembly;

[0042] 42. Air outlet of the connecting pipe assembly; 43. Connecting main pipe; 44. Connecting branch pipe;

[0043] 5. Exhaust pipe assembly; 51. Inlet end of exhaust pipe assembly; 52. Main exhaust chamber section.

[0044] 53. Air outlet; 54. Air outlet transition section; 55. Air outlet connection section; 56. Air outlet pipe;

[0045] 6. Longitudinal drive mechanism; 7. Lateral drive mechanism; 8. Vertical drive mechanism. Detailed Implementation

[0046] Various exemplary embodiments of the present invention will now be described in detail with reference to the accompanying drawings. It should be noted that, unless otherwise specifically stated, the relative arrangement, numerical expressions, and values ​​of the components and steps set forth in these embodiments do not limit the scope of the invention.

[0047] The following description of at least one exemplary embodiment is merely illustrative and is in no way intended to limit the invention or its application or use.

[0048] Techniques, methods, and equipment known to those skilled in the art may not be discussed in detail, but where appropriate, such techniques, methods, and equipment should be considered part of the specification.

[0049] In all the examples shown and discussed herein, any specific values ​​should be interpreted as merely exemplary and not as limitations. Therefore, other examples of exemplary embodiments may have different values.

[0050] like Figures 1 to 11 As shown, this embodiment of the invention provides a device for improving the handling performance of a vehicle on slippery roads. It includes an intake pipe assembly 3, a connecting pipe assembly 4, and an exhaust pipe assembly 5. The intake pipe assembly is located at the front of the vehicle and opposite the wheels, with its intake port 31 facing the forward direction of the vehicle 1. The intake pipe assembly 3, the connecting pipe assembly 4, and the exhaust pipe assembly 5 are connected sequentially from front to back, with the connecting pipe assembly 4 and the exhaust pipe assembly 5 arranged at a downward inclination. The exhaust port 53 of the exhaust pipe assembly faces the road surface in the direction of wheel travel. After air enters the intake pipe assembly through the intake port 31, its flow rate is accelerated to become a high-speed airflow, which is then ejected from the exhaust port 53 to blow away accumulated water on the road surface in the direction of wheel travel.

[0051] The device for improving vehicle handling performance on slippery roads provided in this embodiment of the invention, when in use, allows air to enter the intake manifold assembly through the intake port 31, where its flow rate is accelerated, and then ejected from the exhaust port 53 of the exhaust manifold assembly. The high-speed airflow blows away water accumulated on the road surface in the direction of wheel travel, thereby improving the water drainage effect. At the same time, the higher the vehicle speed, the greater the flow rate of the air entering the intake manifold assembly, which results in a higher flow rate of the air ejected from the exhaust port after acceleration, making the water drainage effect even better. In other words, the water drainage effect between the wheels and the road surface does not decrease with the increase of vehicle speed, but rather continuously increases with the increase of vehicle speed, thereby effectively improving the vehicle's handling performance on slippery roads.

[0052] Furthermore, the intake pipe assembly includes a first intake pipe 33, a second intake pipe 35, and an intake transition pipe 34. The diameter of the first intake pipe is larger than the diameter of the second intake pipe. The first intake pipe is horizontally arranged, and the second intake pipe is inclined downwards. The first intake pipe and the second intake pipe are connected by the intake transition pipe. This design ensures that the cross-sectional area of ​​the airflow channel within the intake pipe assembly decreases from front to back, thereby accelerating the airflow velocity.

[0053] Specifically, the exhaust pipe assembly includes an exhaust connecting section 55, an exhaust transition section 54, an exhaust main cavity section 52, and an exhaust pipe 56 connected in sequence. The diameter of the exhaust main cavity section is larger than the diameter of the exhaust connecting section. The exhaust connecting section and the exhaust main cavity section are connected through the exhaust transition section. The diameter of the exhaust pipe is smaller than the diameter of the exhaust main cavity section. The exhaust outlet of the exhaust pipe is the exhaust outlet 53 of the connecting pipe assembly. The air inlet of the exhaust connecting section is connected to the connecting pipe assembly 4. This design ensures that the cross-sectional area (diameter) of the airflow channel within the exhaust pipe assembly increases from front to back. This results in the airflow channel of the device first decreasing in size and then increasing again, thereby generating the Laval effect and significantly increasing the airflow velocity.

[0054] Preferably, there are multiple air outlet pipes 56, and the air outlet of each air outlet pipe faces different parts of the road surface in the direction of wheel travel. By blowing air into different parts of the road surface in the direction of wheel travel using the air outlet of each air outlet pipe, the water accumulated in front of the wheel travel direction can be blown away, effectively reducing the water accumulation between the wheel and the road surface.

[0055] Furthermore, such as Figure 1 and Figure 9As shown, there are two air outlet assemblies 5, located on the left and right sides of the longitudinal center plane 21 of the wheel, respectively. The air outlet of the left air outlet assembly faces the right side of the road surface in the direction of wheel travel, using the air it ejects to blow away accumulated water on the right side of the road surface in the direction of wheel travel; the air outlet of the right air outlet assembly faces the left side of the road surface in the direction of wheel travel, using the air it ejects to blow away accumulated water on the left side of the road surface in the direction of wheel travel. This design arranges the air outlets of the two air outlet assemblies on the left and right sides in front of the same wheel in a left-right, cross-arranged manner, thereby achieving a better water drainage effect, clearing a drier road surface for the wheel 2, and reducing the mutual interference of the high-speed airflows from the air outlets of the left and right air outlet assemblies.

[0056] Specifically, the connecting pipe assembly 4 includes a main connecting pipe 43 and two connecting branch pipes 44. The front end of the main connecting pipe 43 is connected to the outlet end of the second air inlet pipe, and the rear end of the main connecting pipe 43 is connected to the inlet ends of the outlet connecting sections of the two air outlet pipe assemblies through the two connecting branch pipes 44. This design effectively connects the air inlet pipe assembly to the two air outlet pipe assemblies. In this case, the diameter of the main connecting pipe can be equal to the diameter of the second air inlet pipe, the diameter of the connecting branch pipes can be equal to the diameter of the outlet connecting section, and the diameter of the second connecting pipe can be slightly larger than or equal to the diameter of the outlet connecting section. It can be understood that the front end of the main connecting pipe is the air inlet end 41 of the connecting pipe assembly, the rear end of the connecting branch pipe is the air outlet end 42 of the connecting pipe assembly, the outlet end of the second air inlet pipe is the air outlet end 32 of the air inlet pipe assembly, and the inlet end of the outlet connecting section is the air inlet end 51 of the air outlet pipe assembly.

[0057] In practical applications, the number of exhaust pipe assemblies 5 corresponding to each wheel can be one, two, or more, such as... Figure 1 The number of air outlet assemblies 5 shown is two. When there are multiple air outlet assemblies 5, the air intake assembly 3 can be connected to the air intake ends of multiple air outlet assemblies through a connecting pipe assembly 4 using one air outlet end, or the air intake ends of multiple air intake assemblies can be connected to the air intake ends of one or more air outlet assemblies through multiple connecting pipe assemblies 4. Preferably, the air outlet of the air outlet assembly is located close to the ground in the direction of wheel travel.

[0058] It is understandable that when fluid flows through a pipe whose cross-section narrows, as the pipe becomes narrower, fluid such as air flowing from the wider upstream section will be accelerated and flow downstream at a faster speed due to the narrower cross-section. This is related to the flow velocity, flow rate, and cross-sectional area. Moreover, the flow velocity and cross-sectional area are inversely proportional. In other words, as the cross-section of the downstream section of the pipe becomes smaller and smaller, i.e., the pipe becomes narrower, the fluid will be continuously accelerated to the speed of sound. However, when the fluid reaches this point, it has reached a critical point, and it will not accelerate any further even if the pipe becomes narrower.

[0059] To further accelerate the gas, Laval (a foreigner's name) didn't continue narrowing the pipe; instead, he added a wider section. This reduced the pressure above the gas, allowing it to be released instantly. The gas filled the pipe with its increased cross-section, thus accelerating it. As the air passed through the pipe, first narrowing and then widening, its ejection speed increased dramatically, achieving supersonic airflow. While the fluid velocity clearly increases as it narrows, it doesn't slow down when entering the wider pipe. This is because the fluid's velocity is faster than the speed of sound when entering the narrow pipe, rendering the relationships between velocity, flow rate, and cross-sectional area inapplicable. Upon re-entering the wider pipe, the accumulated energy is released, further accelerating the fluid and transforming it into a supersonic flow—the Laval effect. This is the fundamental principle behind Laval tubes in current technology.

[0060] In the above embodiment, the cross-sectional changes of the airflow channel from wide to narrow to wide are arranged in the intake pipe assembly 3 and the exhaust pipe assembly 5 to form a Laval pipe, thereby generating the Laval effect and obtaining high-speed airflow. The specific dimensions of the intake pipe assembly 3, the exhaust pipe assembly 5, and the connecting pipe assembly 4 can be set as needed, as long as the Laval effect can be generated.

[0061] It should be noted that in this invention, as air enters from the air inlet 31 of the air inlet pipe assembly 3 and flows out from the air outlet 53 of the air outlet pipe assembly 5, it undergoes a process of the air flow channel going from wide to narrow and then back to wide. In the design, it is necessary to make it conform to the principle of Laval pipe. Assuming the vehicle travels at speed V1, and taking the vehicle as a stationary frame of reference, air enters the intake port of intake pipe assembly 3 at speed V1. After passing through the Laval effect generated by the Laval pipe formed by intake pipe assembly 3, connecting pipe assembly 4, and exhaust pipe assembly 5, the air is blown out at ultra-high speed V2 (high airflow speed also means high thrust) from the exhaust port 53 of exhaust pipe assembly 5. When the exhaust ports of the two exhaust pipe assemblies on the left and right sides in front of the same wheel are arranged side to side and cross each other front to back, if the angle between the direction of the high-speed airflow from exhaust port 53 and the left and right direction of the vehicle is α degrees, then the speed of the high-speed airflow V1 relative to the water on the road surface can be divided into two parts: one part is the airflow speed V3 in the forward direction of the vehicle, V3 = (V2 * sinα) - V1, and the other part is the airflow speed V4 in the left and right direction of the vehicle, V4 = V2 * cosα. Among them, the airflow speed V4 in the left and right direction of the vehicle has an absolute effect on the drainage of the road surface. However, since the airflow velocity V2 blown out of the air outlet 53 is several times that of the airflow velocity V1 when the air enters the air intake 31 of the air intake manifold assembly, and there is a direct proportional relationship between the two, when the vehicle speed increases and V1 increases, the airflow velocity V2 blown out of the air outlet 53 increases even more. This means that as the vehicle speed increases, the efficiency of removing water between the wheels and the ground will be higher.

[0062] In the above embodiments, the Laval effect is achieved by utilizing the wide-narrow-wide cross-sectional change formed by the intake pipe assembly and the exhaust pipe assembly. In other embodiments, other design schemes are also possible, such as arranging part or all of the wide-narrow-wide cross-sectional change on the connecting pipe assembly 4, so that the internal cross-section of one or all of the intake pipe assembly 3 and the exhaust pipe assembly 5 remains unchanged (e.g., the cross-section of the intake port of the intake pipe assembly 3 is equal to that of its exhaust end). Alternatively, the wide-narrow-wide cross-sectional change of the airflow channel can be concentrated entirely on either the intake pipe assembly 3 or the exhaust pipe assembly 5.

[0063] In other embodiments, at least one of the intake manifold assembly 3 and the connecting pipe assembly 4 is a Laval pipe for generating the Laval effect. For example... Figure 12 As shown, when the intake manifold assembly 3 is a Laval manifold, the internal channel of the intake manifold assembly 3 itself achieves the cross-sectional change required by the Laval manifold, which is sufficient to generate the Laval effect and generate ultra-high speed airflow.

[0064] In the above embodiments, a single-stage Laval pipe is used. Preferably, a multi-stage Laval pipe is used to accelerate the air in the airflow channel in multiple stages to improve the drainage effect. Figure 13 The diagram shows a two-stage Laval tube. In this configuration, the intake pipe assembly 3 and the connecting pipe assembly 4 each form a Laval tube structure, connected in series. High-speed gas flowing from the outlet 32 ​​of the intake pipe assembly enters the intake 41 of the connecting pipe assembly, where it is further accelerated by the Laval effect. This significantly increases the speed of the air ejected from the outlet 53, thereby further improving the drainage effect on the road surface in the direction of wheel 2 travel. A Laval tube is a pipe used to accelerate airflow. When using multiple Laval tubes in series, it is necessary to ensure that each Laval tube operates on the same principle. By using them in series, the airflow speed and thrust are further increased.

[0065] In another embodiment, such as Figure 14 and Figure 15 As shown, when the air outlet assembly 5 has multiple air outlets, any one, two, or several air outlets 53 of the air outlet assembly blow ultra-high-speed airflow toward the wheel to drain a small amount of water accumulated in the tire shoulder, grooves, etc., thereby further improving the adhesion between the wheel and the road surface, strengthening the force transmission between the wheel and the road surface, and improving the vehicle's handling performance. Preferably, the airflow direction of the air outlet is in the same direction as the wheel's rotation, which helps reduce energy consumption; of course, the airflow direction can also be set to the opposite direction of the wheel's rotation, which is not conducive to reducing energy consumption, but because the high-speed airflow has a higher speed relative to the tire tread, it helps to improve the drainage effect.

[0066] Furthermore, such as Figure 16 As shown, the device for improving vehicle handling performance on slippery roads also includes a longitudinal drive mechanism 6, which is used to adjust the position of the exhaust pipe assembly in the longitudinal direction; the connecting pipe assembly is a flexible component. In this case, to make the connecting pipe assembly 4 a flexible component so that it can adapt to changes in the position of the exhaust pipe assembly when adjusting its longitudinal direction, the connecting pipe assembly can be made of a stretchable and bendable corrugated pipe or similar material.

[0067] Since the water blown onto both sides of wheel 2 will flow back after time t1 and onto the road surface in the direction the wheel is traveling, wheel 2 needs to cross the dried road surface before the water flows back. If the length of the dried road surface is L1 (the distance between the air outlet of the vent assembly and the wheel), then L1 ≤ V1*t1, where V1 is the vehicle speed. This ensures that wheel 2 crosses the dried road surface before the water flows back. The drying process also takes time t2. If the value of L1 remains constant at high, medium, and low speeds, then at high speeds, V1*t2 > L1, meaning the water hasn't been completely drained before the wheel hits it. This implies that the longitudinal distance between the air outlet of the vent assembly 5 and wheel 2 needs to be controlled at different vehicle speeds: decreasing this distance at low speeds and increasing it at high speeds. In use, the longitudinal drive mechanism 6 moves the air outlet assembly 5 in the longitudinal direction of the vehicle according to the vehicle speed to adjust the longitudinal distance between the air outlet of the air outlet assembly 5 and the wheel 2. Specifically, the vehicle control system determines whether the device for improving the vehicle's handling performance on wet roads is working. If not, the longitudinal drive mechanism 6 is not working; if so, the longitudinal drive mechanism 6 is controlled to move according to the vehicle speed to adjust the position of the air outlet assembly in the longitudinal direction of the vehicle until the longitudinal distance between the air outlet of the air outlet assembly 5 and the wheel 2 meets the requirements, ensuring that the wheel can drive over the dried road surface before the water flows back.

[0068] Furthermore, such as Figure 17 As shown, the device for improving vehicle handling performance on slippery roads also includes a lateral drive mechanism 7, which is used to adjust the position of the air outlet assembly in the left-right direction; the connecting pipe assembly 4 is a flexible component. In this case, the connecting pipe assembly can also be made of a stretchable and bendable corrugated pipe or similar material.

[0069] Since wheel 2 rotates a certain angle when vehicle 1 turns, if the air outlet 53 of the exhaust pipe assembly does not move laterally along with the longitudinal center plane of the wheel, the steering wheel may still lose traction during the turn. When the vehicle turns right, the wheel load shifts due to centrifugal force, increasing the load on the left wheel and decreasing the load on the right wheel. At this time, the focus is on the left wheel, ensuring it has sufficient traction. Since the left wheel rotates inward, the lateral drive mechanism 7 corresponding to that wheel moves the exhaust pipe assembly inward, i.e., to the right. As for the right wheel, since it extends beyond the vehicle's outline when rotating, when the exhaust pipe assembly is driven to directly below the edge of the vehicle's outline, it is not necessary to use the lateral drive mechanism to drive the exhaust pipe assembly 5 to extend beyond the vehicle's outline, as this would complicate the structure, affect wind resistance, and detract from the aesthetics. Similarly, the same principle applies when the vehicle turns left, and will not be elaborated further.

[0070] In use, the lateral drive mechanism 7 moves the air outlet assembly 5 in the left-right direction of the vehicle according to the wheel's turning angle. This adjusts the position of the air outlet of the air outlet assembly 5 based on changes in the wheel's turning angle, ensuring that water is drained from the road surface in the direction the wheel is traveling. Specifically, the control system determines whether the device for improving vehicle handling performance on slippery roads is working. If not, the lateral drive mechanism 7 is not working; if so, it is controlled to move according to the wheel's turning angle, adjusting the position of the air outlet assembly 5 in the left-right direction of the vehicle. This ensures that the air outlet of the air outlet assembly 5 changes with the wheel's position, guaranteeing that water is drained from the road surface in the direction the wheel is traveling, preventing the wheel from losing traction during turns, and improving vehicle handling performance. Preferably, the movement path of the air outlet assembly is arc-shaped under the drive of the lateral drive mechanism, in which case the lateral drive mechanism can have an arc-shaped guide rail.

[0071] Furthermore, such as Figure 18 As shown, the device for improving vehicle handling performance on slippery roads also includes a vertical drive mechanism 8, which is used to adjust the position of the air outlet assembly in the vertical direction. The connecting pipe assembly is a flexible component. In this case, the connecting pipe assembly can also be made of a stretchable and bendable corrugated pipe or similar material.

[0072] This design allows the air vent assembly to move vertically downwards via the vertical drive mechanism 8 when it rains or the road surface is detected to be slippery. This brings the air outlet 53 closer to the ground, improving water drainage. When the road surface is not slippery, the vertical drive mechanism moves the air vent assembly vertically upwards, retracting it onto the vehicle's underbody protection plate to avoid increasing wind resistance. During operation, the vehicle control system uses sensors to determine if there is water, snow, or rain on the road surface. If so, it controls the vertical drive mechanism to move the air vent assembly downwards towards the ground; otherwise, it remains inactive. When it is determined that the air vent assembly needs to be retracted, the vertical drive mechanism 8 moves it upwards to retract it onto the vehicle's underbody protection plate.

[0073] The water-draining effect between the wheels and the road surface of this invention does not decrease with increasing vehicle speed; on the contrary, it increases with increasing speed. This invention utilizes the Laval tube principle to generate ultra-high-speed airflow without additional power, effectively blowing away water or snow from the road surface or tires with low energy consumption. When the vehicle is traveling at a constant speed, this invention reduces overall vehicle energy consumption because if a water film exists between the wheels and the ground, wheel slippage at the same speed will waste fuel, electricity, or other energy. During vehicle acceleration, this invention enhances the force transmission between the wheels and the road surface, resulting in faster vehicle response. During vehicle braking, this invention enhances the force transmission between the wheels and the road surface, resulting in shorter braking distances and safer driving. During vehicle steering, this invention enhances the force transmission between the wheels and the road surface, making the vehicle less prone to fishtailing, resulting in more precise steering and safer driving.

[0074] This invention utilizes the Laval effect to generate ultra-high-speed airflow through a specially designed device for road drainage. It is energy-efficient and emission-reducing, and can very effectively remove water accumulated between the road surface and the wheels. The water drainage effect between the wheels and the road surface does not decrease with increasing vehicle speed, but rather increases with increasing speed. This reduces the risk of wheels slipping and losing traction when the vehicle is traveling at medium and high speeds on wet roads, and strengthens the force transmission between one or more wheels and the road surface, making the vehicle safer and more reliable when traveling at medium and high speeds on wet roads.

[0075] Although this invention has been described in conjunction with the above embodiments, it is not limited to those embodiments. Modifications may be made to the structure of components such as the intake pipe assembly, connecting pipe assembly, and exhaust pipe assembly, but all may directly or indirectly employ the principle of the Laval tube, or may select one or more functions from this patented invention. The invention is limited only by the appended claims. Those skilled in the art can easily modify and change it without departing from the essential concept and scope of this invention. Any scheme that uses the principle of one or more Laval tubes to generate high-speed airflow to blow away accumulated water, snow, stones, and other debris on the road surface falls within the protection scope of this patent. Alternatively, adding a power fan or other driving structure to ordinary pipes to blow away accumulated water and snow on the road surface also falls within the protection scope of this patent.

Claims

1. A device for improving the handling performance of a vehicle on a wet road, characterized in that, It includes the air inlet pipe assembly, the connecting pipe assembly, the air outlet pipe assembly, the air inlet pipe assembly is arranged in the vehicle front end and is opposite with the wheel, the air inlet of the air inlet pipe assembly is towards the vehicle's forward direction; The air inlet pipe assembly, the connecting pipe assembly and the air outlet pipe assembly are sequentially connected from front to back, the connecting pipe assembly and the air outlet pipe assembly are sequentially inclined downward; The air outlet of the air outlet pipe assembly is towards the road surface in the wheel driving direction; Air can be accelerated in the air inlet pipe assembly after entering the air inlet, and is sprayed from the air outlet to blow away the accumulated water on the road surface in the wheel driving direction; The air inlet pipe assembly includes a first air inlet pipe, a second air inlet pipe and an air inlet transition pipe, the diameter of the first air inlet pipe is greater than that of the second air inlet pipe; The first air inlet pipe is horizontally arranged, the second air inlet pipe is inclined downward, and the first air inlet pipe and the second air inlet pipe are connected through the air inlet transition pipe; The air outlet pipe assembly includes an air outlet connecting section, an air outlet transition section, an air outlet main cavity section and an air outlet pipe which are sequentially connected, the diameter of the air outlet main cavity section is greater than that of the air outlet connecting section, the air outlet connecting section and the air outlet main cavity section are connected through the air outlet transition section, and the diameter of the air outlet pipe is smaller than that of the air outlet main cavity section; The air outlet of the air outlet pipe is the air outlet of the connecting pipe assembly, and the air inlet end of the air outlet connecting section is connected with the connecting pipe assembly; It also includes a longitudinal driving mechanism for adjusting the position of the air outlet pipe assembly in the front and back directions; The connecting pipe assembly is a flexible member; The longitudinal driving mechanism drives the air outlet pipe assembly to move in the front and back directions of the vehicle according to the vehicle speed, so as to adjust the longitudinal distance between the air outlet of the air outlet pipe assembly and the wheel, and ensure that the wheel drives on the road surface which has been blown dry before the accumulated water flows back; It also includes a transverse driving mechanism for adjusting the position of the air outlet pipe assembly in the left and right directions; The transverse driving mechanism drives the air outlet pipe assembly to move in the left and right directions of the vehicle according to the turning angle of the wheel, so as to adjust the position of the air outlet of the air outlet pipe assembly according to the change of the turning angle of the wheel; The number of the air outlet pipe assemblies is two, and the two air outlet pipe assemblies are respectively located on the left and right sides of the longitudinal center plane of the wheel, the air outlet of the air outlet pipe assembly located on the left side is towards the right side road surface in the wheel driving direction, so as to blow away the accumulated water on the right side road surface in the wheel driving direction by the air sprayed therefrom; The air outlet of the air outlet pipe assembly located on the right side is towards the left side road surface in the wheel driving direction, so as to blow away the accumulated water on the left side road surface in the wheel driving direction by the air sprayed therefrom; The connecting pipe assembly includes a connecting main pipe and two connecting branch pipes, the front end of the connecting main pipe is connected with the air outlet end of the second air inlet pipe, and the rear end of the connecting main pipe is connected with the air inlet ends of the air outlet connecting sections of the two air outlet pipe assemblies through the two connecting branch pipes respectively; At least one of the air outlet pipe assembly, the air inlet pipe assembly and the connecting pipe assembly is a Laval pipe for generating Laval effect.

2. The device for improving the handling performance of a vehicle on a wet road according to claim 1, wherein The number of the air outlet pipes is multiple, and the air outlet of each air outlet pipe faces different parts on the road surface in the driving direction of the wheel.

3. The device for improving the handling performance of a vehicle on a wet road according to any one of claims 1 to 2, characterized in that, It also comprises a vertical driving mechanism for adjusting the position of the air outlet pipe assembly in the up-down direction, and the connecting pipe assembly is a flexible member.

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