CN202063195U - Self-adapting deformable downforce spoiler for racing cars - Google Patents
Self-adapting deformable downforce spoiler for racing cars Download PDFInfo
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- CN202063195U CN202063195U CN2011201640632U CN201120164063U CN202063195U CN 202063195 U CN202063195 U CN 202063195U CN 2011201640632 U CN2011201640632 U CN 2011201640632U CN 201120164063 U CN201120164063 U CN 201120164063U CN 202063195 U CN202063195 U CN 202063195U
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- downforce
- deformation control
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Abstract
The utility model provides a self-adapting deformable downforce spoiler for racing cars and belongs to the field of automobile electromechanical combined systems. The self-adapting deformable downforce spoiler comprises a base, a plurality of deformation control drivers and a surface coating, wherein the surface coating is covered outside the deformation control drivers to form a downforce spoiler body; the base is mounted at the tail part of a racing car and used for supporting the downforce spoiler body; each deformation control driver comprises a driving joint, a shape memory alloy wire, a control module and an elastic element; the deformation control drivers have a chain structure in which adjacent driving joints are movably connected through chain joint pins, the upper ends of adjacent driving joints are connected through the shape memory alloy wires, the lower ends of adjacent driving joints are connected through the elastic elements; and the shape memory alloy wires are connected with the control modules. The self-adapting deformable downforce spoiler produces larger downward pressures during acceleration and brake processes and produces smaller resistances by means of shape adjustment during high-speed running process, so that the car speed is increased. The deformation control drivers are designed based on the features of shape memory alloys, so that a driving mechanism is simplified.
Description
Technical field
The utility model relates to a kind of racing car of self-adapting changeable shape and decides the wind wing, relates in particular to a kind of marmem that adopts and decides the wind wing as the self-adapting changeable shape of Deformation control actuator, belongs to the electromechanical combined system of automobile field.
Background technology
Decide the aerodynamics parts of the wind wing, its role is to produce additional downforce, increase tire, improve acceleration, braking and the maneuvering performance of racing car ground-surface adhesive ability as racing car.But under different speed of a motor vehicle operating modes, also exist different demands to deciding the wind wing itself.The downforce that thereupon produces owing to the shape difference of deciding the wind wing is also different with resistance.Quicken and braking procedure in wish that deciding the wind wing has bigger downforce, obtaining more to add (subtracting) speed, and hope is decided the wind wing and is had than slight drag in the process of running at high speed, to obtain bigger maximum speed.China's utility model patent number is 93246837.3 patent disclosure, and a kind of fixed type is decided the wind wing, can produce aerodynamic effects in the process of moving, play the guiding role to coming stream.But deciding the wind wing, this can't produce different aerodynamic at the height speed of a motor vehicle.The patent disclosure of China's utility model patent numbers 200520012568.1 a kind of Liftable type decide the wind wing, having improved low speed to a certain extent, decide wind wing aerodynamic effect not obvious, and to the negative effect of driving backsight visual field generation.But from deciding the practical function effect of the wind wing, do not play to enlarge and decide between wind wing sphere of action, the effect of aerodynamics efficiency optimization can only have the fixing angle of attack under the different speed of a motor vehicle.And this mechanism is relatively heavy, and space hold is more, is unfavorable for the aerodynamic features optimal design in flow field on every side.
The utility model content
The purpose of this utility model is to decide the wind wing can not adapt to the different problem that racing car requires car load aerodynamics under different driving cycles in order to solve racing car, and tradition can set up too complicated problems of wind wing Mechanical Driven control system, provides a kind of racing car of self-adapting changeable shape to decide the wind wing.
The utility model is achieved through the following technical solutions.
The wind wing is decided in a kind of racing car of self-adapting changeable shape, comprises pedestal, a plurality of Deformation control actuator, surperficial covering; Wherein, described Deformation control actuator outside is covered surperficial covering and is formed and decide wind wing main body; Pedestal is installed in the racing car afterbody, is used to support decide wind wing main body; Single Deformation control actuator comprises driving joint, shape-memory alloy wire, control module and elastic element; The Deformation control actuator is a chain structure, wherein adjacent driving joint by link hinge pin active link together, adjacent upper end, driving joint is connected with shape-memory alloy wire, and the lower end is connected with elastic element, and shape-memory alloy wire links to each other with control module.
The material of described shape-memory alloy wire is a marmem.
It is evenly distributed from big to small to drive the joint, decides the requirement of wind wing gas kinetics to satisfy.
The control method of described control module is: after racing car started, the control main program brought into operation, and by the control current size self-adapting changeable shape is decided the wing shape of wind and carries out the initialization setting; After finishing initialization, the vehicle speed data that car speed sensor collects is judged: if the speed of a motor vehicle greater than critical speed, then starts the Deformation control subprogram, otherwise then do not start this program; After starting the Deformation control subprogram, the acceleration information that acceleration pick-up collects is judged, if acceleration/accel is greater than last critical acceleration value, perhaps deceleration/decel is less than the lower critical accekeration, then shape-memory alloy wire feeds corresponding electric current, under the calorific effect of electric current, shape-memory alloy wire produces cooresponding deformation, this deformation makes the actuator joint turn over certain angle around the link hinge pin, the elastic element of lower end has produced cooresponding tensile deformation under the deformation of shape-memory alloy wire simultaneously, the cumulative effect of chain structure makes whole Deformation control actuator produce bulk deformation, change aerofoil profile string of a musical instrument curvature, obtain bigger lift coefficient, under acceleration or decelerating mode, produce bigger air negative lift so that decide the wind wing, thereby have bigger acceleration/accel or braking deceleration; If program judges that accekeration is between critical acceleration value and the lower critical accekeration, then by reducing to feed the electric current of shape-memory alloy wire, make and decide the distortion of the wind wing, change aerofoil profile string of a musical instrument curvature, obtain less lift coefficient, under high speed form operating mode, produce less resistance so that decide the wind wing, thereby have the higher speed of a motor vehicle.
Beneficial effect
1, the wind wing is decided in the racing car of a kind of self-adapting changeable shape of the present utility model, decides the wind wing with traditional fixed type and compares, and it can carry out deciding the self adaptation adjusting of the wing shape of wind according to racing car different requirements to aerodynamic performance under different driving cycles.Should decide the wind wing can produce bigger downforce in quickening and braking, to obtain faster speed; And in running at high speed, have less resistance by Adjusting Shape, to obtain the higher speed of a motor vehicle.
2, the racing car of a kind of self-adapting changeable shape of the present utility model is decided the wind wing and is utilized marmem characteristics design Deformation control actuator, this Deformation control actuator is compared with the device that the driving angles of attack such as motor, mechanical linkage, hydraulic pressure change, simplified driver train greatly, reduced to decide wind wing system weight, saved driver space, enlarged and decided wind wing operating range.
Description of drawings
Fig. 1 is the overall construction drawing that the wind wing is decided in the racing car of a kind of self-adapting changeable shape of the present utility model;
Fig. 2 is the arrangement plan of Deformation control actuator in deciding the wind wing;
Fig. 3 is two articulation structure figure of Deformation control actuator;
Fig. 4 is the two joints energising back distortion scheme drawing of Deformation control actuator;
Fig. 5 is that wind wing distortion scheme drawing is decided in the racing car of a kind of self-adapting changeable shape of the present utility model;
Fig. 6 is that wind wing Deformation control diagram of circuit is decided in the racing car of a kind of self-adapting changeable shape of the present utility model;
Among the figure, the 1-pedestal, 2-Deformation control actuator, 3-surface covering, 4-drives the joint, the 5-shape-memory alloy wire, the 6-control module, 7-links hinge pin, 8-elastic element.
The specific embodiment
Below in conjunction with drawings and Examples, the utility model is elaborated.
As shown in Figure 1, the utility model comprises 1,8 Deformation control actuators 2 of pedestal, surperficial covering 3; Wherein, described Deformation control actuator 2 outsides are covered 3 and are formed and to decide wind wing main body, and pedestal 1 is installed in the racing car afterbody, are used to support decide wind wing main body.
Described Deformation control actuator 2 is a chain structure, and it is evenly distributed from big to small to drive joint 4, and it is continuous by the link hinge pin each other that each drives the joint, as shown in Figure 2.
Described Deformation control actuator 2, the connection structure in joint is: adjacent driven joint 4 is linked at together by link hinge pin 7, and adjacent two drive the upper end, joint is connected with shape-memory alloy wire 5, and the lower end is connected with elastic element 8, as shown in Figure 3.
Under acceleration and damped condition, shape-memory alloy wire 5 feeds electric current, under the calorific effect of electric current, shape-memory alloy wire 5 produces cooresponding contraction deformation, thereby make the driving joint turn over certain angle around link hinge pin 7, the elastic element 8 of lower end has produced cooresponding tensile deformation under the shrinkage distortion of shape-memory alloy wire 5, as shown in Figure 4; The cumulative effect of chain structure makes whole Deformation control actuator 2 produce bulk deformations, as shown in Figure 5, has realized that racing car decide the self adaptation adjusting of the wind wing, thereby can produce bigger air downforce.
The racing car of a kind of self-adapting changeable shape of the present utility model is decided wind wing Deformation control flow process as shown in Figure 6, describedly be used to control shape-memory alloy wire 5 Deformation Control modules 6 control methods and be: after racing car starts, the control main program brings into operation, and by the control current size self-adapting changeable shape is decided the wing shape of wind and carries out the initialization setting; After finishing initialization, the vehicle speed data that car speed sensor collects is judged: if the speed of a motor vehicle greater than critical speed, then starts the Deformation control subprogram, otherwise then do not start this program; After starting the Deformation control subprogram, the acceleration information that acceleration pick-up collects is judged, if acceleration/accel is greater than last critical acceleration value, perhaps deceleration/decel is less than the lower critical accekeration, then shape-memory alloy wire 5 feeds corresponding electric current, under the calorific effect of electric current, shape-memory alloy wire 5 produces cooresponding deformation, this deformation makes the actuator joint turn over cooresponding angle around link hinge pin 7, the elastic element 8 of lower end has produced cooresponding tensile deformation under the deformation of shape-memory alloy wire 5 simultaneously, the cumulative effect of chain structure makes whole Deformation control actuator 2 produce bulk deformation, change aerofoil profile string of a musical instrument curvature, obtain bigger lift coefficient, under acceleration or decelerating mode, produce bigger air negative lift so that decide the wind wing, thereby have bigger acceleration/accel or braking deceleration; If program judges that accekeration is between critical acceleration value and the lower critical accekeration, then by reducing to feed the electric current of shape-memory alloy wire 5, make and decide the distortion of the wind wing, change aerofoil profile string of a musical instrument curvature, obtain less lift coefficient, under high speed form operating mode, produce less resistance so that decide the wind wing, thereby have the higher speed of a motor vehicle.As shown in Figure 6.
Claims (2)
1. the wind wing is decided in the racing car of a self-adapting changeable shape, and it comprises; Pedestal, a plurality of Deformation control actuator, surperficial covering, a plurality of Deformation control actuators outside is covered surperficial covering and is formed and decide wind wing main body; Pedestal is installed in the racing car afterbody, is used to support decide wind wing main body, it is characterized in that: the Deformation control actuator is a chain structure, and adjacent driving joint is movably connected by the link hinge pin; Single Deformation control actuator comprises driving joint, shape-memory alloy wire, control module and elastic element, and adjacent upper end, driving joint is connected with shape-memory alloy wire, and the lower end is connected with elastic element; Shape-memory alloy wire links to each other with control module.
2. the wind wing is decided in the racing car of a kind of self-adapting changeable shape according to claim 1, it is characterized in that: arrange from big to small in described driving joint.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011201640632U CN202063195U (en) | 2011-05-21 | 2011-05-21 | Self-adapting deformable downforce spoiler for racing cars |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011201640632U CN202063195U (en) | 2011-05-21 | 2011-05-21 | Self-adapting deformable downforce spoiler for racing cars |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202063195U true CN202063195U (en) | 2011-12-07 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2011201640632U Expired - Lifetime CN202063195U (en) | 2011-05-21 | 2011-05-21 | Self-adapting deformable downforce spoiler for racing cars |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202063195U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102248968A (en) * | 2011-05-21 | 2011-11-23 | 北京理工大学 | Adaptive deformable rear wings of racing car |
-
2011
- 2011-05-21 CN CN2011201640632U patent/CN202063195U/en not_active Expired - Lifetime
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102248968A (en) * | 2011-05-21 | 2011-11-23 | 北京理工大学 | Adaptive deformable rear wings of racing car |
| CN102248968B (en) * | 2011-05-21 | 2013-01-30 | 北京理工大学 | Adaptive deformable rear wings of racing car |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| AV01 | Patent right actively abandoned |
Granted publication date: 20111207 Effective date of abandoning: 20130227 |
|
| RGAV | Abandon patent right to avoid regrant |