A multi-degree-of-freedom automotive active aerodynamics kit

Abstract

The present invention discloses a multi-degree-of-freedom automobile active aerodynamics kit, including a multi-degree-of-freedom active rear wing, an active diffuser and an active front lip. The multi-degree-of-freedom active automobile rear wing is fixed on the trunk cover of a motor vehicle. The multi-degree-of-freedom active automobile rear wing includes a rear wing bottom plate, a rear wing main plate, an electric push rod and a slider. The rear wing bottom plate is used to be fixedly connected to the trunk cover of the motor vehicle. One end of the electric push rod is fixed to the rear wing bottom plate, and the other end is hinged to the slider. The slider is connected to the rear wing main plate. Compared with the prior art, by adding a multi-degree-of-freedom active rear wing, the rear wing can be raised, lowered and tilted according to different vehicle speeds and driving modes to meet the aerodynamic needs in various states, ensure the stability of the vehicle during driving, reduce the wind resistance coefficient during normal driving, and improve the cornering performance of the vehicle under high-speed driving.

Description

Technical Field

[0001] The invention relates to a set of automobile active aerodynamic devices, including three parts: an active rear wing, an active diffuser and an active front lip. The multi-freedom active rear wing is the main feature of the kit, especially the initiative and freedom of the automobile rear wing. Background Art

[0002] Cars are subject to air resistance during driving. The flowing air will flow around the irregular surface of the car, interfere with the tire's grip and affect the car's handling performance. The so-called "car aerodynamic kit" is mainly to improve the air flow around the car, reduce vehicle resistance, and enhance the grip of the vehicle tires and the ground.

[0003] The professional name of the car rear wing is "car spoiler". The professional name is spoiler, which is part of the car aerodynamic kit. The main function of the rear wing is to reduce the lift of the rear of the vehicle. If the lift of the rear of the vehicle is greater than the lift of the front of the vehicle, it is easy to cause the vehicle to over-steer, reduce the grip of the rear wheels, and deteriorate the high-speed stability. In recent years, active car rear wings popular in sports cars and concept cars can actively change the shape of the rear wing according to the driving state of the car, such as deceleration, acceleration, etc., such as raising, lowering, flipping, etc., so as to improve the driving condition of the motor vehicle. However, from the current background, the degree of freedom of active rear wings is very limited, and most of them can only change one to two modes (direction and angle). Summary of the invention

[0004] The purpose of the present invention is to solve the above problems and provide a multi-degree-of-freedom automobile active aerodynamics kit.

[0005] To achieve the above-mentioned purpose, the method adopted by the present invention is: a multi-degree-of-freedom automobile active aerodynamics kit, including a multi-degree-of-freedom active rear wing, an active diffuser and an active front lip, the multi-degree-of-freedom active automobile rear wing is fixed on the trunk cover of a motor vehicle, the multi-degree-of-freedom active automobile rear wing includes a rear wing bottom plate, a rear wing main board, an electric push rod and a slider, the rear wing bottom plate is used to be fixedly connected to the trunk cover of the motor vehicle, one end of the electric push rod is fixed to the rear wing bottom plate, and the other end is hinged to the slider, and the slider is connected to the rear wing main board.

[0006] As an improvement of the present invention, the active front lip includes a front lip main board, a front lip electric push rod and a fixed guide rail, one end of the front lip electric push rod is fixed on the front lip main board, and the other end of the front lip electric push rod is fixed to the fixed guide rail. The fixed guide rail is installed together with the front chassis of the car.

[0007] As an improvement of the present invention, the active diffuser includes a diffuser main board and a mounting plate. The mounting plate is fixed to the chassis at the rear of the motor vehicle. One end of the mounting plate is hinged to the diffuser main board. An electric adjustment mechanism is also provided between the mounting plate and the diffuser main board for adjusting the angle between the mounting plate and the diffuser main board.

[0008] As an improvement of the present invention, the electric adjustment mechanism includes a stepper motor, a screw, a slider and a mounting seat. The electric adjustment mechanism is fixed to the mounting plate through the mounting seat. A screw-slider mechanism is formed between the stepper motor, the screw and the slider. The slider is connected to the diffuser mainboard through a connecting rod, and the connecting rod, the slider and the diffuser mainboard are hinged.

[0009] As an improvement of the present invention, the electric push rod is connected to a battery of a motor vehicle.

[0010] As an improvement of the present invention, the front lip electric push rod is connected to a motor vehicle battery.

[0011] As an improvement of the present invention, the stepper motor is connected to a motor vehicle battery.

[0012] As an improvement of the present invention, three electric push rods are provided, which are respectively arranged at the left, middle and right positions of the rear wing bottom plate, and the three electric push rods can be controlled individually.

[0013] In order to better describe the multi-degree-of-freedom problem of the present invention, we put the vehicle in a three-dimensional coordinate system and order the front of the vehicle as the x-axis direction, the ground to the roof as the z-axis, and the vertical side direction of the vehicle as the y-axis. The current active rear wing mainly solves the air resistance in the x-axis and the air stabilizing force perpendicular to the ground generated by factors such as the vehicle shape during the driving process of the vehicle in the z-axis. The present invention has designed the idea of ​​the air steering force on the y-axis. The so-called air steering force is to use aerodynamic force to help the vehicle turn when the car turns at high speed, thereby increasing the speed and stability of the car on the curve. Therefore, the present invention involves the degrees of freedom in the three directions of the x, y, and z-axes.

[0014] Beneficial effects:

[0015] Compared with the existing technology, by adding an active rear wing with multiple degrees of freedom, the rear wing can be raised, lowered, flipped and tilted according to the vehicle speed and driving mode to meet the aerodynamic needs in various states, ensure the stability of the car during driving, reduce the drag coefficient during normal driving, and improve the car's cornering performance at high speeds.

[0016] The active diffuser mainboard is used to accelerate the extraction of airflow from the bottom of the car to a greater extent, better ensuring the stability of the car at high speeds.

[0017] Through the adjustable front lip setting, the whole vehicle can be straightened, the airflow passing through the bottom of the vehicle can be shortened, and the stability and aesthetics of the vehicle can be improved. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 This is a schematic diagram of the structure of the invention of a multi-degree-of-freedom active automobile tail wing

[0019] Figure 2 This is a schematic diagram of the active front lip invention structure

[0020] Figure 3 Schematic diagram of the diffuser screw guide device

[0021] Figure 4 The following is a schematic diagram of the installation of each component.

[0022] In the picture are: 1-tail main board, 2-electric push rod, 3-tail bottom board, 4-slider, 5-front lip electric push rod, 6-fixed guide rail, 7-front lip main board, 8-stepping motor, 9-screw rod, 10-diffuser main board, 11-mounting plate, 12-mounting seat, 13-connecting rod, 14-slider. DETAILED DESCRIPTION

[0023] The present invention will be further described below in conjunction with implementation examples and accompanying drawings.

[0024] like Figures 1 to 3 The multi-degree-of-freedom automobile active aerodynamics kit includes a multi-degree-of-freedom active rear wing, an active diffuser and an active front lip. The multi-degree-of-freedom active automobile rear wing is fixed on the trunk cover of a motor vehicle. The multi-degree-of-freedom active automobile rear wing includes a rear wing base plate 3, a rear wing main board 1, an electric push rod 2 and a slider 4. The rear wing base plate 3 is used to be fixedly connected to the trunk cover of the motor vehicle. One end of the electric push rod 2 is fixed to the rear wing base plate 3, and the other end is hinged to the slider 4. The slider 4 is connected to the rear wing main board 1. The electric push rod 2 is connected to the battery of the motor vehicle, and the electric push rod 2 is connected to the center console of the car by wire or wireless. There are three electric push rods 2, which are respectively arranged at the left, middle and right positions of the rear wing base plate 3, and the three electric push rods 2 can be controlled separately. Under the action of the electric push rod 2, the rear wing main board 1 can be lifted, flipped and tilted.

[0025] The active front lip includes a front lip main board 7, a front lip electric push rod 5 and a fixed guide rail 6. One end of the front lip electric push rod 5 is fixed to the front lip main board 7, and the other end of the front lip electric push rod 5 is fixed to the fixed guide rail 6. The fixed guide rail 6 is installed together with the front chassis of the car. The front lip electric push rod 5 is connected to the battery of the motor vehicle and is connected to the center console of the car by wire or wireless. When the front lip electric push rod 5 moves, the fixed guide rail 6 does not move, but drives the front lip main board 7 to move horizontally.

[0026] The active diffuser includes a diffuser main board 10 and a mounting plate 11. The mounting plate 11 is fixed to the chassis of the rear part of the motor vehicle. One end of the mounting plate 11 is hinged to the diffuser main board 10. An electric adjustment mechanism is also provided between the mounting plate 11 and the diffuser main board 10 to adjust the angle between the mounting plate 11 and the diffuser main board 10. The electric adjustment mechanism includes a stepper motor 8, a screw rod 9, a slider and a mounting seat 12. The electric adjustment mechanism is fixed to the mounting plate 11 through the mounting seat 12. The stepper motor 8, the screw rod 9 and the slider form a screw rod slider mechanism. The slider is connected to the diffuser main board 10 through a connecting rod 13. The connecting rod 13 is hinged to the slider and the diffuser main board 10. The stepper motor 8 is connected to the motor vehicle battery and is connected to the vehicle center console by wire or wireless. The stepper motor 8 rotates to drive the slider 14 to move, thereby driving the diffuser main board 10 to rotate and realize the change of its angle.

[0027] The specific active mode of the present invention is as follows: when the vehicle is traveling at a speed of less than 120km / h, the rear wing does not need to be operated and is hidden in the trunk, and the active diffuser and the active front lip maintain their initial positions; when the vehicle speed is greater than 120km / h, the three electric push rods move upward to extend the rear wing, and the faster the speed, the higher the raised part of the rear wing, the active front lip extends about 10%, and the active diffuser opens 20 degrees; when the car decelerates rapidly, the electric push rods on both sides of the rear wing do not move, and the middle electric push rod moves upward and rises, pushing the slider to move, so that the rear wing is no longer parallel to the ground, but forms a certain angle, and the active front lip and the active diffuser return to the initial position to act as air brakes to help decelerate; when the car is traveling on a curve at a speed higher than 90km / h, the three electric push rods are raised to different lengths, among which the electric push rod in the turning direction is raised the highest, and the electric push rod on the opposite side of the turning direction is the lowest, so that the slider slides and the rear wing tilts in the turning direction, so that the vehicle obtains air steering force to help the vehicle turn.

[0028] The invention mainly solves the problems of air resistance and steering freedom of an automobile active aerodynamic device.

[0029] The above embodiments are only preferred implementation modes of the present invention. It should be pointed out that ordinary technicians in this technical field can make several improvements and equivalent substitutions without departing from the principles of the present invention. These technical solutions after improvements and equivalent substitutions to the claims of the present invention all fall within the protection scope of the present invention.

Claims

1. A multi-degree-of-freedom automobile active aerodynamics kit, comprising a multi-degree-of-freedom active rear wing, an active diffuser and an active front lip, characterized in that: The multi-degree-of-freedom active rear wing is fixed on the trunk cover of the motor vehicle. The multi-degree-of-freedom active automobile rear wing comprises a rear wing bottom plate (3), a rear wing main plate (1), an electric push rod (2) and a slider (4). The rear wing bottom plate (3) is used to be fixedly connected to the trunk cover of the motor vehicle. One end of the electric push rod (2) is fixed to the rear wing bottom plate (3), and the other end is hinged to the slider (4). The slider (4) is connected to the rear wing main plate (1); the active front lip comprises a front lip main plate (7), a front lip electric push rod (5) and a fixed guide rail (6). One end of the front lip electric push rod (5) is fixed to the front lip main plate (7), and the other end of the front lip electric push rod (5) is fixed to the fixed guide rail (6). The fixed guide rail (6) is installed together with the front chassis of the automobile; the active diffuser comprises a diffuser main plate (10 ), a mounting plate (11), the mounting plate (11) being fixed to the chassis at the rear of the motor vehicle, one end of the mounting plate (11) being hinged to the diffuser main board (10), an electric adjustment mechanism being arranged between the mounting plate (11) and the diffuser main board (10), for adjusting the angle between the mounting plate (11) and the diffuser main board (10); the electric adjustment mechanism comprising a stepping motor (8), a screw rod (9), a slider and a mounting seat (12), the electric adjustment mechanism being fixed to the mounting plate (11) via the mounting seat (12), a screw rod and slider mechanism being formed between the stepping motor (8), the screw rod (9) and the slider, the slider being connected to the diffuser main board (10) via a connecting rod (13), the connecting rod being hinged to the slider and the diffuser main board (10); the electric push rod (2) being connected to a battery of the motor vehicle.

2. A multi-degree-of-freedom vehicle active aerodynamics kit according to claim 1, characterized in that: The front lip electric push rod (5) is connected to a motor vehicle battery.

3. The multi-degree-of-freedom vehicle active aerodynamics kit according to claim 1, characterized in that: The stepper motor (8) is connected to a motor vehicle battery.

4. The multi-degree-of-freedom vehicle active aerodynamics kit according to claim 1, characterized in that: There are three electric push rods (2), which are respectively arranged at the left, middle and right positions of the tail wing bottom plate (3), and the three electric push rods (2) can be controlled individually.

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