CN113682387A - Telescopic fin device of angle of attack self-adaptation doublestage of intelligence - Google Patents
Telescopic fin device of angle of attack self-adaptation doublestage of intelligence Download PDFInfo
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- CN113682387A CN113682387A CN202111190658.XA CN202111190658A CN113682387A CN 113682387 A CN113682387 A CN 113682387A CN 202111190658 A CN202111190658 A CN 202111190658A CN 113682387 A CN113682387 A CN 113682387A
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- hinge part
- hydraulic cylinder
- hydraulic
- tail
- rack body
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B62—LAND VEHICLES FOR TRAVELLING OTHERWISE THAN ON RAILS
- B62D—MOTOR VEHICLES; TRAILERS
- B62D35/00—Vehicle bodies characterised by streamlining
- B62D35/007—Rear spoilers
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B62—LAND VEHICLES FOR TRAVELLING OTHERWISE THAN ON RAILS
- B62D—MOTOR VEHICLES; TRAILERS
- B62D37/00—Stabilising vehicle bodies without controlling suspension arrangements
- B62D37/02—Stabilising vehicle bodies without controlling suspension arrangements by aerodynamic means
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02T—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO TRANSPORTATION
- Y02T10/00—Road transport of goods or passengers
- Y02T10/80—Technologies aiming to reduce greenhouse gasses emissions common to all road transportation technologies
- Y02T10/82—Elements for improving aerodynamics
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- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- Transportation (AREA)
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- Fluid Mechanics (AREA)
- Steering Control In Accordance With Driving Conditions (AREA)
Abstract
The invention provides an intelligent attack angle self-adaptive two-stage telescopic tail wing device which comprises a main wing, 2 sets of hydraulic telescopic mechanisms and two servo motors, wherein the 2 sets of hydraulic telescopic mechanisms have the same structure and are symmetrically arranged below the main wing in a left-right mode; two servo motors are arranged on the tail vehicle body and communicated with the tail vehicle body in a bilateral symmetry mode, and the hydraulic telescopic mechanism is driven to stretch back and forth by means of driving the gear to be meshed with the rack body; the automobile ECU receives signals of a speed sensor, a brake pedal sensor, an accelerator pedal sensor and a steering wheel angle sensor, and then outputs signals to control a servo motor and a hydraulic telescopic mechanism (a first hydraulic cylinder and a second hydraulic cylinder), the tail wing extends out of the tail part of the automobile and is controlled to rise to the optimal height, and meanwhile, the optimal attack angle (front and back dip angles) of the tail wing can be adjusted through a hydraulic link mechanism, so that the aerodynamic performance and the operation stability of the automobile are improved.
Description
Technical Field
The invention relates to the technical field of automobile empennages, in particular to a hidden type intelligent attack angle self-adaptive two-stage telescopic empennage device along with the driving state of an automobile.
Background
When the automobile runs at a high speed, according to the aerodynamic principle, air resistance can be met in the running process, air power in the longitudinal direction, the lateral direction and the vertical rising direction is generated around the gravity center of the automobile at the same time, wherein the longitudinal direction is the air resistance. In order to effectively reduce and overcome the influence of air resistance when an automobile runs at high speed, the spoiler is designed to reduce the lift force of the tail part of the automobile, if the lift force of the tail part of the automobile is larger than that of the head part of the automobile, the automobile is easy to oversteer, the ground holding force of rear wheels is reduced, and the high-speed stability is poor, the tail wing enables air to generate downward acting force on the automobile, namely, larger adhesive force to the ground is generated, a part of the lift force can be offset, the automobile is effectively controlled to float upwards, the wind resistance coefficient is correspondingly reduced, the automobile can be closely attached to the ground of a road to run, and therefore the running stability is improved.
Chinese patent publication No. CN111267969A discloses a sectional racing car tail fin system with adaptive angle adjustment, which can realize independent adjustment of the attack angle of the left and right flaps, and solve the problem that different downforce is required on the two sides of the vehicle during turning, but the adjustment range for changing the downforce is limited by changing the attack angle of the tail fin, and the downforce of the outer wheels is seriously insufficient under the condition of high-speed and sharp turning. The invention solves the defects of the original patent by adjusting the attack angle of the tail wing, and simultaneously can hide the automobile tail wing at low speed, thereby achieving the effects of improving the fuel economy at low speed and improving the operation qualitative of the automobile at high speed.
Disclosure of Invention
The invention aims to provide an intelligent attack angle self-adaptive two-stage telescopic tail wing device aiming at the problems in the prior art, which has stable performance and higher intelligent degree, greatly improves the aerodynamic performance of an automobile and the high-speed over-bending operation stability, and has better application value.
The technical scheme of the invention is as follows: the utility model provides a telescopic fin device of intelligence angle of attack self-adaptation doublestage, is including a main wing, two sets of hydraulic telescoping mechanism, two servo motor, its characterized in that: the two sets of hydraulic telescopic mechanisms have the same structure and are symmetrically arranged below the main wing in a left-right mode;
the hydraulic telescopic mechanism comprises a rack body, a first hydraulic cylinder and a second hydraulic cylinder, wherein a rack is arranged on the lower end face of the rack body, a connecting support is arranged below a main wing, a first front hinge part and a first rear hinge part are arranged in front of and behind the connecting support, a second front hinge part and a second rear hinge part are arranged in front of and behind the upper portion of the rack body, a connecting rod is hinged between the first rear hinge part and the second rear hinge part, the lower end of the first hydraulic cylinder is hinged to the second front hinge part on the rack body, the upper end of the first hydraulic cylinder is hinged to the first front hinge part of the connecting support, a groove is formed in the connecting rod, a sliding block is installed in the groove in a sliding fit mode, the lower end of the second hydraulic cylinder is hinged to a third front hinge part at the front end of the rack body, and the upper end of the second hydraulic cylinder is hinged to the sliding block, so that a four-rod telescopic mechanism is formed; the front and back inclination angles of the tail wing are adjusted through the telescopic lengths of the first hydraulic cylinder and the second hydraulic cylinder;
the two servo motors are arranged in a bilateral symmetry mode, the servo motors are installed on a vehicle body at the tail part, the rack body is guided in a guide rail arranged in the vehicle body, a driving gear is installed on a rotating shaft of each servo motor, the driving gear is meshed with the rack body, and the hydraulic telescopic mechanism is driven to stretch back and forth;
the automobile ECU receives signals of a speed sensor, a brake pedal sensor, an accelerator pedal sensor and a steering wheel angle sensor, and then outputs signals to control the servo motor, the first hydraulic cylinder and the second hydraulic cylinder.
The invention has the beneficial effects that: the four-bar linkage telescopic mechanism receives related signals to control the first hydraulic cylinder and the second hydraulic cylinder to stretch, so that the tail wing is controlled to rise to a preset height and a front and back inclination angle of the tail wing, and the state of the automobile tail wing is adjusted, thereby forming two-stage control; the control tail wing of the servo motor is displayed at low speed and high speed of the automobile to play a role, the height of the tail wing and the change of the attack angle (front and back inclination angles) are controlled by the hydraulic mechanism, the aerodynamic performance and the operation stability of the automobile are improved, and the servo motor has good application value.
Drawings
FIG. 1 is a schematic diagram of the present invention.
Fig. 2 is a perspective view of the present invention (the servo motor and the drive gear are omitted).
Fig. 3 is a control schematic of the present invention.
FIG. 4 is a front view of the present invention in a high speed condition.
FIG. 5 is a top view of the present invention in a high speed vehicle.
Fig. 6 shows the state of the tail of the invention at 2 different forward and backward inclinations.
Detailed Description
The technical scheme of the invention is clearly and completely described by combining the attached drawings 1-5: an intelligent attack angle self-adaptive two-stage telescopic tail wing device comprises a main wing 1, two sets of hydraulic telescopic mechanisms 2, two servo motors 4 and a driving gear 3, wherein the two sets of hydraulic telescopic mechanisms have the same structure and are symmetrically arranged below the main wing in a left-right mode; the hydraulic telescopic mechanism comprises a rack body 1-1, a first hydraulic cylinder 2-3 and a second hydraulic cylinder 2-2, wherein a rack is arranged on the lower end surface of the rack body, a connecting support 1-1 is arranged below a main wing 1, a first front articulated part and a first rear articulated part are arranged in front of and behind the connecting support 1-1, a second front articulated part and a second rear articulated part are arranged in front of and behind the upper part of the rack body, a connecting rod is articulated between the first rear articulated part and the second rear articulated part, the lower end of the first hydraulic cylinder 2-3 is articulated with the second front articulated part on the rack body, the upper end of the first hydraulic cylinder 2-3 is articulated with the first front articulated part of the connecting support, a groove is arranged on the connecting rod, a slide block 2-4 is arranged in the groove in a sliding fit manner, and the lower end of the second hydraulic cylinder 2-2 is articulated with a third front articulated part at the front end of the rack body, the upper end of the second hydraulic cylinder 2-2 is hinged on the sliding block 2-4 to form a four-bar linkage telescopic mechanism; the front and back inclination angles of the tail wing are adjusted through the telescopic lengths of the first hydraulic cylinder and the second hydraulic cylinder; the two servo motors 4 are arranged in a bilateral symmetry mode, the servo motors 4 are installed on a vehicle body at the tail part, the rack body 2-1 is guided in a guide rail arranged in the vehicle body, a rotating shaft of each servo motor is provided with a driving gear 3, and the driving gear 3 is meshed with the rack body 2-1 to drive the hydraulic telescopic mechanism to stretch back and forth; the automobile ECU receives signals of a speed sensor, a brake pedal sensor, an accelerator pedal sensor and a steering wheel angle sensor, and then outputs signals to control the servo motor, the first hydraulic cylinder and the second hydraulic cylinder.
As shown in fig. 4 and 5, a state diagram of the adaptive dual-stage retractable tail device of the present invention under a high-speed condition of an automobile is shown.
As shown in fig. 6, in the diagrams a and b, 2 different forward and backward inclination angles of the tail wing are shown, and the extension and contraction lengths of the first hydraulic cylinder and the second hydraulic cylinder are changed.
The hinge parts of the first front hinge part, the first rear hinge part, the second front hinge part, the second rear hinge part and the third front hinge part are all joint bearings, so that the hinge parts are easy to obtain and flexible to move.
The working principle of the invention is as follows: when an accelerator pedal is stepped on, an automobile ECU receives signals of a speed sensor, a brake pedal sensor, an accelerator pedal sensor and a steering wheel angle sensor, the signals acquired by the sensors are processed, calculation and logic judgment are carried out by a controller, the current driving working condition of the automobile is judged, whether the tail wing stretches out and expands at the current speed is determined through the logic judgment of the automobile ECU, a corresponding instruction is sent to a servo motor, the tail wing stretches out of an automobile body, then a hydraulic telescopic mechanism starts to execute the instruction, the tail wing begins to rise to a corresponding height and is adjusted to an optimal attack angle (front and rear inclination angles), and the operation stability of the automobile is improved.
Claims (2)
1. The utility model provides a telescopic fin device of intelligence angle of attack self-adaptation doublestage, is including a main wing, 2 sets of hydraulic telescoping mechanism, two servo motor, its characterized in that: the 2 sets of hydraulic telescopic mechanisms have the same structure and are symmetrically arranged below the main wing in a left-right mode;
the hydraulic telescopic mechanism comprises a rack body, a first hydraulic cylinder and a second hydraulic cylinder, wherein a rack is arranged on the lower end face of the rack body, a connecting support is arranged below a main wing, a first front hinge part and a first rear hinge part are arranged in front of and behind the connecting support, a second front hinge part and a second rear hinge part are arranged in front of and behind the upper portion of the rack body, a connecting rod is hinged between the first rear hinge part and the second rear hinge part, the lower end of the first hydraulic cylinder is hinged to the second front hinge part on the rack body, the upper end of the first hydraulic cylinder is hinged to the first front hinge part of the connecting support, a groove is formed in the connecting rod, a sliding block is installed in the groove in a sliding fit mode, the lower end of the second hydraulic cylinder is hinged to a third front hinge part at the front end of the rack body, and the upper end of the second hydraulic cylinder is hinged to the sliding block, so that a four-rod telescopic mechanism is formed; the front and back inclination angles of the tail wing are adjusted through the telescopic lengths of the first hydraulic cylinder and the second hydraulic cylinder;
the two servo motors are arranged in a bilateral symmetry mode, the servo motors are installed on a vehicle body at the tail part, the rack body is guided in a guide rail arranged in the vehicle body, a driving gear is installed on a rotating shaft of each servo motor, the driving gear is meshed with the rack body, and the hydraulic telescopic mechanism is driven to stretch back and forth;
the automobile ECU receives signals of a speed sensor, a brake pedal sensor, an accelerator pedal sensor and a steering wheel angle sensor, and then outputs signals to control the servo motor, the first hydraulic cylinder and the second hydraulic cylinder.
2. The intelligent angle of attack adaptive two-stage retractable tail device of claim 1, wherein: and the hinge parts of the first front hinge part, the first rear hinge part, the second front hinge part, the second rear hinge part and the third front hinge part are all joint bearings.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202111190658.XA CN113682387A (en) | 2021-10-13 | 2021-10-13 | Telescopic fin device of angle of attack self-adaptation doublestage of intelligence |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202111190658.XA CN113682387A (en) | 2021-10-13 | 2021-10-13 | Telescopic fin device of angle of attack self-adaptation doublestage of intelligence |
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| Publication Number | Publication Date |
|---|---|
| CN113682387A true CN113682387A (en) | 2021-11-23 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202111190658.XA Pending CN113682387A (en) | 2021-10-13 | 2021-10-13 | Telescopic fin device of angle of attack self-adaptation doublestage of intelligence |
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| CN (1) | CN113682387A (en) |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114954546A (en) * | 2022-07-04 | 2022-08-30 | 中南大学 | Method, computer device and storage medium for controlling a lifting wing of a high speed train |
| CN115158376A (en) * | 2022-08-23 | 2022-10-11 | 中南大学 | Anti-crosswind vertical telescopic wing of high-speed train and control method |
| CN115158377A (en) * | 2022-08-23 | 2022-10-11 | 中南大学 | High-speed train crosswind resisting method and turnable wing |
| CN115214729A (en) * | 2022-08-23 | 2022-10-21 | 中南大学 | Cross wind resistant turning telescopic wing of high-speed train |
| CN115214730A (en) * | 2022-08-23 | 2022-10-21 | 中南大学 | High-speed train crosswind resisting method and train wing |
-
2021
- 2021-10-13 CN CN202111190658.XA patent/CN113682387A/en active Pending
Cited By (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114954546A (en) * | 2022-07-04 | 2022-08-30 | 中南大学 | Method, computer device and storage medium for controlling a lifting wing of a high speed train |
| CN115158376A (en) * | 2022-08-23 | 2022-10-11 | 中南大学 | Anti-crosswind vertical telescopic wing of high-speed train and control method |
| CN115158377A (en) * | 2022-08-23 | 2022-10-11 | 中南大学 | High-speed train crosswind resisting method and turnable wing |
| CN115214729A (en) * | 2022-08-23 | 2022-10-21 | 中南大学 | Cross wind resistant turning telescopic wing of high-speed train |
| CN115214730A (en) * | 2022-08-23 | 2022-10-21 | 中南大学 | High-speed train crosswind resisting method and train wing |
| CN115214729B (en) * | 2022-08-23 | 2023-09-19 | 中南大学 | High-speed train anti-crosswind overturning telescopic wing |
| CN115214730B (en) * | 2022-08-23 | 2023-09-19 | 中南大学 | Method for resisting crosswind of high-speed train and wing |
| CN115158376B (en) * | 2022-08-23 | 2023-09-19 | 中南大学 | Transverse wind resistant vertical telescopic wing of high-speed train and control method |
| CN115158377B (en) * | 2022-08-23 | 2023-11-28 | 中南大学 | Method for resisting crosswind of high-speed train and reversible wing |
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