A manual and automatic intelligent adjustable deflector

Abstract

The present invention relates to the field of truck air deflector structure design, and relates to a manual-automatic intelligent adjustment air deflector, including a top air deflector, a side air deflector, a top height adjustment mechanism, two flipping mechanisms, and two side height adjustment mechanisms; the top height adjustment mechanism includes an adjustment motor, a lead screw, and two first support rods; the flipping mechanism includes a guide rod and a second support rod; the side adjustment mechanism includes a steering gear, a left lead screw, and a left guide rod. The present invention provides a manual-automatic intelligent adjustment air deflector structure, which can be applied to different road conditions, cargo box heights and vehicle speeds. Through an integrated structure, the two sides of the top of the air deflector are adjusted at the same time, and the air deflector angle is optimized by intelligent adaptive adjustment, so as to achieve the goals of driving safety and energy saving.

Description

Technical Field

[0001] The invention relates to the field of truck air deflector structure design, and particularly relates to a manual-automatic intelligent adjustment air deflector. Background Art

[0002] During the driving process of a car, rolling resistance and wind resistance play a very important role. The wind resistance has a quadratic relationship with the vehicle speed. When the vehicle speed increases, the wind resistance increases rapidly in proportion to the square of the normal wind speed. In order to effectively reduce the vehicle's drag coefficient and reduce fuel consumption, it is necessary to install air deflectors on the top and sides of the cab. Studies have shown that when the drag coefficient is reduced by 30%, fuel consumption is reduced by 10%. When a truck is equipped with a deflector, the airflow will flow in the direction of the deflector, avoiding the large wind resistance at the rear cargo box and reducing the drag coefficient.

[0003] Existing air deflectors are generally made of fiberglass. Due to the diversion effect, the middle part of the air deflector is subjected to greater force. After long-term use, the center of the air deflector will have a large depression, affecting the diversion effect. In road conditions such as long downhills, it is necessary to increase wind resistance. At this time, the air deflector has the opposite effect and cannot increase wind resistance accordingly. Most existing vehicle air deflectors have a fixed height or fixed gear adjustment, and cannot be flexibly matched with the adaptive cargo box. Some electric adjustment air deflector devices do not consider the reliability of the device. When the electric device fails or is damaged under certain working conditions, the position of the air deflector cannot be changed.

[0004] For example, Chinese patent application No. 201910103111.8 discloses a system and method for intelligent adjustment of a shroud and self-adjustment. The system includes a controller, an electrically controlled shroud and a sensor. The sensor includes an airspeed tube, a rear camera and an ultrasonic rangefinder. The controller is located inside the cab and is used to store and process the data of the sensor to control the electrically controlled shroud. The electrically controlled shroud is installed around the cab and the angle is adjusted by the controller. The airspeed tube is installed at the windward position of the top of the cab to measure the airspeed. The rear camera is installed at the rear end of the electrically controlled shroud to monitor the adjustment position of the electrically controlled shroud. The ultrasonic rangefinder is installed at the rear of the cab to measure the distance between the cab and the cargo box, and is also used to detect whether it is empty. The intelligent adjustment system and method of the shroud, the self-adjusting shroud and the vehicle can achieve the effect of reducing wind resistance and fuel consumption.

[0005] Chinese patent application No. 202110955532.0 discloses an electric adjustment device for a high-strength air deflector for a truck, comprising: a first linkage plate and a second linkage plate connected to the air deflector at intervals, and the lower end of the air deflector is connected to the truck through a movable part; a first bracket and a second bracket fixed to the truck at intervals, and a guide part is arranged between the first bracket and the second bracket; a first strut and a second strut, one end of the first strut is movably connected to the first linkage plate, and the other end is movably connected to the first slider part that cooperates with the guide part, one end of the second strut is movably connected to the second linkage plate, and the other end is movably connected to the second slider part that cooperates with the guide part; a bidirectional electric drive device is arranged between the first bracket and the second bracket, and the first output end and the second output end of the bidirectional electric drive device are respectively connected to the first slider part and the second slider part.

[0006] The above patent can only adjust the air deflector on the top of the cab, but cannot adjust the air deflectors on both sides at the same time, and the structure is complex and cannot be operated manually or automatically. Summary of the invention

[0007] The purpose of the present invention is to solve the above problems as much as possible by providing a manual-automatic intelligent adjustment deflector structure that can be adapted to different road conditions, cargo box heights and vehicle speeds. Through the integrated structure, the top deflector and the two side deflectors can be adjusted at the same time, and intelligent adaptive adjustment can be performed to optimize the deflector angle, thereby achieving the goals of driving safety and energy saving.

[0008] The present invention is achieved through the following measures.

[0009] The present invention discloses a manual-automatic intelligent adjustable air deflector, comprising a top air deflector located on the top of a cab and side air deflectors located on both sides of the cab, and the features thereof are: a top height adjustment mechanism and two flipping mechanisms for adjusting the activity of the top air deflector, and two side height adjustment mechanisms for adjusting the activity of the side air deflectors;

[0010] The top height adjustment mechanism includes a top adjustment motor, a lead screw connected by an adjustment gear, and the lead screw rotates to drive two first support rods that can swing left and right. One end of the first support rod is connected to the lead screw by a positioning screw, and the other end is connected to the rear end of the top air deflector through a base; the lead screw is fixed to the cab by two fixed bearings;

[0011] The flip mechanism includes a guide rod connected to a positioning screw, and the guide rod drives the second support rod to move up and down through a gear rod and a lifting gear; the lifting gear is installed on a gear base fixed to the cab body; the second support rod is fixed to the middle of the top deflector;

[0012] The side adjustment mechanism includes a steering gear connected to the end of the lead screw, a left lead screw driven by the steering gear, a left guide rod driven by the left lead screw, and the end of the left guide rod is connected to a connecting base connected to the side guide plate.

[0013] The above-mentioned manual-automatic intelligent adjustment air deflector, in order to realize the manual-automatic function: the side adjustment mechanism also includes a handle, and the handle is connected to the left screw through a locking mechanism.

[0014] The above-mentioned manual-automatic intelligent adjustable deflector is preferably: a hinge device connects the cab body and the side deflector, and a left fixed bearing is provided between the left screw and the cab body.

[0015] The above-mentioned manual-automatic intelligent adjustment deflector is preferably configured such that: the middle portion of the left lead screw is threaded, and the upper portion is a smooth and thin sliding rod.

[0016] The above-mentioned manual-automatic intelligent adjustment deflector is preferably configured such that: the front end of the gear rod is without teeth, and the rear end is with teeth.

[0017] The above-mentioned manual-automatic intelligent adjustment deflector is preferably connected with the guide rod via a rotating shaft.

[0018] The left and right lead screws of the present invention are connected to the lead screw above by a steering gear pair, and the lead screw is connected to the cab body by a fixed bearing fixed base. The left and right lead screws can rotate around the bearing base to drive the left and right guide rods to move up and down. The left and right guide rods are connected to the height adjustment mechanism and the side guide plate. The guide plate flipping mechanism plays a flipping role to control the opening and closing of the guide plate. When the adjustment motor is reversed, the upper lead screw rotates in the opposite direction to drive the air deflector to rise. There is no thread between the left and right guide rods and the lead screw, and there is a limit device on the upper side. The two slide and rub, and the positions of the left and right guide rods and the side guide plates remain unchanged, ensuring that the whole vehicle is in a safe width.

[0019] When the air deflector is in the open state, the air deflector flipping mechanism plays a guiding role and supports the flipping of the air deflector. When the air deflector is in the raised state, the air deflector flipping mechanism plays a supporting role. The air deflector flipping mechanism is pushed by the positioning screws of the height adjustment mechanism to push the gear lifting mechanism below the air deflector flipping mechanism to rise.

[0020] The upper part of the left and right lead screws is slightly thinner than the threaded part to ensure that the left and right guide rods can slide freely at the uppermost part.

[0021] The fairing flipping mechanism is installed on the fairing crossbeam to increase the central structural strength of the fairing.

[0022] The vehicle state and the state of the air deflector are both adjusted by the intelligent control module.

[0023] The intelligent control module analyzes information such as different wind speeds, cargo box heights, and road conditions through a database to adjust the state of the deflector.

[0024] Before use, the intelligent control module first normalizes parameters such as wind speed, cargo box height, vehicle speed, and fairing position, establishes an initial data sample library and constructs a sample matrix, and obtains a stable transmission relationship between input values ​​and output values ​​by building a complete second-order response surface model.

[0025] The input and output parameters of the response surface model are used to establish a calibration parameter library, and the multi-objective optimal solution optimization scheme for different operating parameters is found through genetic algorithm calculation.

[0026] When establishing the factory calibration database, the speed, distance, fuel consumption and other sensors are calibrated at the same time, and the sensor calibration parameters are updated.

[0027] The factory calibration is a quantitative calibration analysis. The real-time road conditions are relatively complex, and there may be problems with the quality of the calibration optimization solution. Therefore, the real-time calibration mode can be turned on under real-time road conditions to increase the number of calibration samples under specific road conditions. A high-precision response surface model is established through calibration and measurement of the dual-library sample matrix parameters to improve the parameter optimization accuracy.

[0028] A handle is installed below the lead screw of the left side guide plate and is connected to the lead screw using a locking mechanism. When pulled downward, the handle can drive the lead screw to rotate. After returning to its original position, the handle does not change when the lead screw rotates.

[0029] The beneficial effect of the present invention is that by providing a manual-automatic intelligent adjustment air deflector structure, it can be adapted to different road conditions, cargo box heights and vehicle speeds. Through the integrated structure, both sides of the top of the air deflector can be adjusted at the same time, and the intelligent and adaptive adjustment can be performed to optimize the angle of the air deflector, thereby achieving the goals of driving safety and energy saving. BRIEF DESCRIPTION OF THE DRAWINGS

[0030] Figure 1 A three-dimensional schematic diagram of a manual-automatic intelligent adjustment deflector structure

[0031] Figure 2 Schematic diagram of the air deflector height adjustment mechanism

[0032] Figure 3 Schematic diagram of the flip mechanism and its AA view

[0033] Figure 4 Schematic diagram of the gear lifting mechanism in the flip mechanism

[0034] Figure 5 Schematic diagram of the left side deflector height adjustment mechanism

[0035] In the figure, 1 is a top air deflector, 2 is a side air deflector, 3 is a side height adjustment mechanism, 4 is a flip mechanism, and 5 is a top height adjustment mechanism.

[0036] 301 steering gear, 302 left fixed bearing, 303 connecting base, 304 left guide rod, 305 left lead screw, 306 locking mechanism, 307 handle, 308 hinge device.

[0037] 401 reinforcing cross beam, 402 rising nut, 403 guide rod, 404 second supporting rod, 405 lifting gear, 406 gear rod, 407 gear base.

[0038] 501 steering gear, 502 fixed bearing, 503 adjusting motor, 504 adjusting gear, 505 first support rod, 506 base, 507 lead screw, 508 positioning screw. DETAILED DESCRIPTION

[0039] The following is combined with Figure 1-5 The examples disclosed in the present disclosure are further described in detail with reference to the accompanying drawings. It should be emphasized that the examples disclosed are only specific examples of the present invention and are used to fully explain the contents of the present invention, but cannot cover all applications. Other examples made based on the present invention without creative work belong to the scope of protection of the present invention.

[0040] A manual-automatic intelligent adjustable air deflector structure includes a top height adjustment mechanism 5 and a flip mechanism 4 connected to a top air deflector 1, side height adjustment mechanisms 3 connected to side air deflectors 2 and located on the left and right sides respectively, and an intelligent control module.

[0041] The top height adjustment mechanism 5 includes a steering gear 501, a fixed bearing 502, a top adjustment motor 503, an adjustment gear 504, a first support rod 505, a base 506 connected to the air deflector and a lead screw 507, and a positioning screw 508 running on the lead screw.

[0042] The flip mechanism includes a reinforcing crossbeam 401, a lifting nut 402, a guide rod 403, a second support rod 404 and a gear lifting mechanism. The gear lifting mechanism includes a lifting gear 405, a gear rod 406 and a gear base 407 connected to the cab body. The guide rod 403 is connected to the gear rod 406, and the guide rod 403 is connected to the positioning screw 508 on the lead screw 507.

[0043] The left height adjustment mechanism includes a steering gear 301, a left fixed bearing 302, a connecting base 303 connected to the side deflector 2, a left guide rod 304, a left screw 305, a locking mechanism 306, a handle 307 and a hinge device 308 connecting the cab body and the side deflector 3.

[0044] By reading the slope and braking force parameter information, the intelligent control module determines that the vehicle has entered a long downhill state, adjusts the motor to rotate forward, drives the screw 507 to rotate, and the first support rod 505 moves to the left and right along the screw 507. The angle between the first support rod 505 and the screw 507 becomes smaller, the vertical height of the first support rod 505 decreases, and the height of the rear part of the air deflector 1 is reduced. At this time, the gear rod 406 in the air deflector flipping mechanism 4 moves backward. Since there is no gear at the front end of the gear rod 406, there is sliding friction between the gear rod 406 and the lifting gear 405. The flipping mechanism 4 only plays a flipping role, and the front side of the air deflector 1 is separated from the cab body, and the air deflector 1 is opened.

[0045] When the lead screw 507 rotates, the steering gear 301 drives the left lead screw 305 to rotate, the left guide rod 304 moves downward, the angle between the left guide rod 304 and the left lead screw 305 decreases, the lateral distance between the left guide rod 304 decreases, the rear part of the side guide plate 2 is pulled by the connection base 303, the hinge device 308 rotates, and the guide plate opens. The right mechanism is roughly the same as the left one.

[0046] The intelligent control module determines that the long downhill state is over, adjusts the motor to reverse, and the lead screw 507 rotates in the opposite direction. The first support rod 505 moves to the middle, the angle between the first support rod 505 and the lead screw 507 increases, the vertical height of the first support rod 505 increases, the height of the rear part of the deflector 1 increases, and the front side of the deflector 1 contacts the cab body and returns to its original position. At this time, the left lead screw 305 rotates, driving the left guide rod 304 to move upward to an angle of 90° with the left lead screw 305, and the left side deflector returns to its original position. The principle of the right lead screw is roughly the same as that of the left lead screw.

[0047] When the intelligent control module determines that the height of the air deflector does not match the cargo box, the regulating motor continues to reverse, the lead screw 507 continues to rotate in the opposite direction, the first support rod 505 continues to move toward the center, the angle between the first support rod 505 and the lead screw 507 increases, the vertical height of the first support rod 505 increases, and the height of the rear part of the air deflector 1 increases. The optimal increment is adjusted by the intelligent control module and adaptively matched with the cargo box. When the angle between the first support rod 505 and the lead screw 507 is 90°, the air deflector 1 has a maximum adjustable height at the base 506, and its height is the length of the first support rod 505. At this time, since the left guide rod 304 has moved to the top of the left lead screw 305 thread, the upper part of the left lead screw 305 is thinner and has a limit device. When the left lead screw 305 continues to rotate, it can ensure that the left guide rod 304 slides on the upper part of the left lead screw 305 thread, and the height of the left and right guide rods will remain unchanged, ensuring that when the angle of the top air deflector increases, the angle of the side guide plate remains unchanged, ensuring that the vehicle is in a safe width.

[0048] At this time, the lead screw 507 rotates in the opposite direction. When the air deflector is raised, the air deflector flipping mechanism 4 is pushed by the positioning screw 508 of the air deflector height adjustment mechanism 5, pushing the guide rod 403 below the air deflector flipping mechanism to move forward, and driving the gear rod 406 to push the lifting gear 405 to rotate, pushing the second support rod 404 to move upward, ensuring that the front end of the air deflector is always in uniform stress contact with the cab body when the rear end of the air deflector moves upward.

[0049] A handle 307 is installed below the left screw 305 of the left side guide plate, and is connected to the left screw 305 using a locking mechanism 306. When the handle 307 is pulled downward, the left screw 305 can be driven to rotate. After returning to its original position, the handle 307 will not change when the left screw 305 rotates.

[0050] The intelligent control module is divided into open and closed states. When turned on, the vehicle status and the position of the air deflector are adjusted by the intelligent control module. When turned off, it can be operated manually.

[0051] Before use, the intelligent control module database first conducts orthogonal experimental design and normalization of parameters such as wind speed, cargo box height, vehicle speed, and fairing position, optimizes the output parameter as fuel consumption, establishes an initial data sample library and constructs a sample matrix, and obtains a stable transfer relationship between input values ​​and output values ​​by building a complete second-order response surface model.

[0052] The response surface model input and output parameters are used to establish a calibration parameter library, and the genetic algorithm is used to calculate the multi-objective optimal solution for different operating parameters. When establishing the factory calibration database, the speed, distance, fuel consumption, altitude, temperature and other sensors are calibrated at the same time to update the sensor calibration parameters.

[0053] Since the factory calibration is a quantitative calibration analysis, and the real-time road conditions are more complex, there may be problems with the quality of the optimization plan. Therefore, the real-time calibration mode can be turned on under real-time road conditions to increase the calibration sample size. After the real-time calibration mode is turned on, the corresponding fuel consumption under the static calibration air shroud angle at this time is used as the calibration quantity, and the air shroud angle is adjusted. After the full road condition collection is completed, the correction mode is turned on through the difference in fuel consumption twice, and the optimal air shroud angle under the road condition is saved. A high-precision response surface model is established through the dual-library sample matrix parameters to improve the parameter optimization accuracy.

Claims

1. A manual-automatic intelligent adjustable air deflector, comprising a top air deflector (1) located at the top of a cab and side air deflectors (2) located at both sides of the cab, characterized in that: It also includes a top height adjustment mechanism (5) and two flip mechanisms (4) for adjusting the activity of the top air guide cover (1), and two side height adjustment mechanisms (3) for adjusting the activity of the side air guide plates (2); The top height adjustment mechanism (5) comprises a top adjustment motor (503), a lead screw (507) connected by an adjustment gear (504), and two first support rods (505) that can swing left and right are driven by the rotation of the lead screw, one end of the first support rod is connected to the lead screw by a positioning screw (508), and the other end is connected to the rear end of the top air deflector by a first base (506); the lead screw (507) is fixed to the cab by two fixed bearings (502); The flip mechanism (4) includes a guide rod (403) connected to a positioning screw (508); the guide rod drives the second support rod (404) to move up and down through a gear rod (406) and a lifting gear (405); the lifting gear is mounted on a gear base (407) fixed to the cab body; the second support rod (404) is fixed to the middle of the top air deflector; The side height adjustment mechanism (3) comprises a steering gear (301) connected to the end of the lead screw (507), a left lead screw (305) driven by the steering gear (301), a left guide rod (304) driven by the left lead screw (305), and an end of the left guide rod (304) connected to a connection base (303) connected to the side guide plate; The side height adjustment mechanism (3) further comprises a handle (307), and the handle (307) is connected to the left lead screw (305) via a locking mechanism (306); The hinge device (308) connects the cab body and the side deflector (2), and a left fixed bearing (302) is provided between the left lead screw (305) and the cab body.

2. The manual-automatic intelligent adjustment deflector according to claim 1, characterized in that: The left lead screw (305) is a sliding rod with a thread in the middle and a smooth and thin upper portion.

3. The manual-automatic intelligent adjustment deflector according to claim 1, characterized in that: The gear rod (406) has no teeth at the front end and teeth at the rear end.

4. The manual-automatic intelligent adjustment deflector according to claim 1, characterized in that: The gear rod (406) and the guide rod (403) are connected via a rotating shaft.

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