KR20210153285A - Active Aerodynamic Force Variable System and Vehicle Thereof - Google Patents

Abstract

An active aerodynamic force varying device (1) applied to a vehicle (100) according to the present invention comprises: an active cover (10) converting between an unfolding state and an overlapping state; a link (20) having a movement to the left side or a backward movement for the unfolding state and a movement to the right side or a forward movement for the overlapping state formed thereon with one side of the active cover (10) fixed; and a motor (30) for transmitting the forward movement and the backward movement to the link (20) in the directions of forward and backward rotation. A drag force coefficient (CD) caused by wind generated from driving and passing over a bumper (110) can be lowered or raised by a fuel efficiency mode and an air brake mode of the active cover (10), and specifically fuel efficiency can be improved by the fuel efficiency mode during driving and an air brake effect is enabled by the air brake mode during sudden braking.

Description

Active Aerodynamic Force Variable System and Vehicle Thereof

The present invention relates to an aerodynamic variable device for a vehicle, and in particular, a vehicle to which an active aerodynamic variable device that can implement an air brake effect during braking while improving fuel efficiency during driving by adjusting a drag force coefficient tailored to vehicle operation is applied. is about

Recently, the demand for improvement of fuel efficiency for automobiles has been developed in a way that additionally improves the aerodynamic force set as a unique value by the vehicle design.

As an example, the aerodynamic improvement method is implemented by combining or adding a separate aerodynamic control device to a portion of the vehicle design with high driving resistance to further lower the _{drag force coefficient (hereinafter, C D ), which is a component of aerodynamics.}

Specifically, as an example of the aerodynamic control device, there is registered patent KR 10-1655672 (September 01, 2016),

That is, the registered patent KR 10-1655672 applies the air duct to the fog lamp mounting part of the front part of the vehicle to selectively discharge the air of the intake duct to the air curtain duct or the cooling duct when the vehicle is driving or braking. In addition to improving the fade phenomenon according to the improvement of the cooling performance of

Registered patent KR 10-1655672 (September 01, 2016)

However, according to the registered patent KR 10-1655672, the air duct improves aerodynamics as the air curtain applied as a blanking cover portion or fog lamp portion, which has a very decisive effect on aerodynamics, only partially relieves static pressure. It has a limited and insignificant contribution to the

_{Accordingly, the present invention in consideration of the above points is a drag coefficient (C D} ) to increase the contribution to improving aerodynamics during driving by changing the area covered by the active cover of the foldable flap structure in the cover space of the front part of the vehicle, which has a great influence on aerodynamics. _{Active aerodynamics that can increase the drag coefficient (C D} ) to generate an air brake effect when braking while lowering it, and can contribute to fuel efficiency improvement while driving by implementing a fuel economy mode that smoothes the shape of the front of the vehicle by unfolding the folding flap An object of the present invention is to provide a variable device and a vehicle.

Active aerodynamic variable device of the present invention for achieving the above object is an active cover consisting of a first,,,,.N flap (N is an integer of 2 or more); a link for fixing one side of the first,,,,.N flap; and generating a rotational force, and moving the link to the right in a counterclockwise rotation with respect to the front surface of the active cover so that the first,,,,.N flaps form an overlapping state, and the first,,,,. ,.N It characterized in that it includes a motor for moving the link to the left in a clockwise rotation with respect to the front surface of the active cover to form an unfolded state.

In a preferred embodiment, the active cover is arranged perpendicular to the length in the longitudinal direction of the link.

In a preferred embodiment, in the unfolded state, the first,,,,.N flaps form an over-length beyond the link, and the overlapping state is a reduction in the over-length, resulting in the first,,,,.N Each of the flaps is formed folded relative to one another.

As a preferred embodiment, each of the first,,,,.N flaps are connected in a concave-convex structure, and the concave-convex structure has the first,,,, ,.N Let the flaps form the overlapping state.

In a preferred embodiment, the hinge shaft protrudes from the concave-convex structure or protrudes in both directions of the concave-convex structure.

In a preferred embodiment, the link includes a flap link having a flap fixing portion to which the first flap of the first,,,,.N flap is fixed, and a motor link formed integrally with the flap link to receive the rotational force. .

In a preferred embodiment, the flap fixing portion connects the flap link and the first flap in a concave-convex structure, and the concave-convex structure has a hinge axis as a center of rotation so that the first flap is positioned relative to the flap link. make it fold

In a preferred embodiment, the link and the motor are connected by a gear, the gear is composed of a rack and a pinion transmitting the rotational force, the rack is formed in the link, and the pinion is coupled to the motor shaft of the motor do.

In addition, the vehicle of the present invention for achieving the above object includes an active cover in which switching between an unfolded state and a nested state, and a left movement for the unfolded state with respect to the front of the vehicle in a state in which one side of the active cover is fixed An active aerodynamic variable device comprising a link on which a right movement for the overlapping state is formed, and a motor for moving the link to the right and left in counterclockwise rotation and clockwise rotation; and mounted on the front of the vehicle, the It characterized in that it includes; a bumper having a cover space provided with an active aerodynamic variable device.

In a preferred embodiment, the bumper divides the cover space into a left cover space and a right cover space, and the active aerodynamic variable device is provided in each of the left cover space and the right cover space.

As a preferred embodiment, the active cover covers the cover space in the unfolded state so that the drag coefficient due to the running wind is lowered, while the overlapping step structure is formed in the cover space in the overlapping state to increase the drag coefficient due to the running wind. make it rise

In a preferred embodiment, the overlapping step structure forms a fan pleat shape or a bellows shape.

As a preferred embodiment, a guide channel is formed in the cover space that is out of the flap blocking wall on one side of the cover space with a hidden end length, and the guide channel guides the movement of the link so that the active cover forms the unfolded state. and the length of the hidden end allows movement of the link so that the active cover blocked from movement by the flap blocking wall forms the overlapping state.

In a preferred embodiment, the active aerodynamic variable device includes a controller, and the controller controls the driving of the motor and controls the movement direction of the link in a forward and reverse rotation direction.

In a preferred embodiment, the controller controls the active aerodynamic variable device in a fuel economy mode or an A-break mode, and in the fuel economy mode, the driving wind passing through the bumper by opening the active cover so that the cover space is covered While lowering the drag coefficient by

In a preferred embodiment, the controller is linked with a signal generator for requesting the controller to drive the motor with a button or a switch; It is linked to an information detection unit that requests the controller for the fuel efficiency mode and the air brake mode as any one of a vehicle speed, an engine speed, an accelerator pedal signal, and a brake pedal signal.

The active aerodynamic variable device applied to the vehicle of the present invention implements the following actions and effects.

First, the aerodynamic improvement effect on the front part of the vehicle in which the blanking cover portion or fog lamp portion, which has a very decisive effect on aerodynamics, is formed as a cover space is greatly increased. _{Second, the change in the drag coefficient (C D} ), which was dropped or raised, can be variably implemented according to the vehicle driving situation by changing the cover area of the cover space formed in the front part of the vehicle in various ways using the folding flap. Third, it is possible to drive a vehicle that improves aerodynamics and fuel economy together by lowering the _{drag coefficient (C D} ) with the folding flap that is unfolded so that the entire cover space is covered during vehicle driving. Fourth, during vehicle braking or sudden braking, the air brake effect can be increased with the cover space by increasing the _{drag coefficient (C D} ) with the folded flap that is pushed and folded to form a large step in one side of the cover space. Fifth, the fuel economy mode/emergency braking mode/non-fuel economy mode can be implemented according to the vehicle driving situation to the extent that the folding flap is unfolded and folded, so that vehicle marketability can be greatly improved by diversifying the driving mode compared to the existing driving mode.

1 is an example of an active aerodynamic variable device according to the present invention consisting of an active cover, a link, and a motor, FIG. 2 is an example of the active aerodynamic variable device according to the present invention configured together with a controller for controlling the motor, FIG. It is an example of a vehicle to which the active aerodynamic variable device according to the present invention is applied, FIG. 4 is an operating state in which the active aerodynamic variable device is switched to a fuel economy mode in the vehicle according to the present invention, and FIG. 5 is an active aerodynamic variable device in the vehicle according to the present invention is an operating state switched to the air brake mode, and FIG. 6 is _{a simulation result of analyzing the drag coefficient (C D} ) of the vehicle according to the present invention as a contrast to not applying the active aerodynamic variable device by the air brake mode.

Hereinafter, an embodiment of the present invention will be described in detail with reference to the accompanying illustrative drawings, and since these embodiments are examples, those of ordinary skill in the art to which the present invention pertains may be implemented in various different forms. It is not limited to the embodiment.

Referring to FIG. 1 , the active aerodynamic variable device 1 includes an active cover 10 , a link 20 and a motor 30 .

In particular, the active aerodynamic variable device 1 is exemplified as an application target for the bumper 110, which has a large effect on aerodynamics in the bumper 110. Blanking Cover Portion or Fog Lamp Portion. This is because it is effective to lower or raise the _{drag coefficient (C D} ) of the aerodynamic force by controlling the air flow to the cover space 111 with the active aerodynamically variable device 1 by being formed as the cover space 111 .

For example, the active cover 10 is composed of a folding flap 11 to block or open the cover space 111 of the bumper 110 , and is arranged perpendicular to the length of the link 20 .

In particular, the folding flap 11 is in contact with the flap blocking wall 113 on one side formed by the cover space 111 of the bumper 110 in the folded and overlapped state in the unfolded and deployed state, thereby the hinge of the folding flap 11 A plurality of flaps are configured such that an overlapping step structure of a fan wrinkle shape or a bellows shape is formed as a rotation structure.

For example, the link 20 is fixed by coupling the active cover 10, and by receiving the rotational force of the motor 30, it is rotated counterclockwise or rotated in a clockwise direction to move right (or move forward) and While moving to the left (or moving backward), the active cover 10 is unfolded by moving to the left, while the active cover 10 is folded by moving to the right to form an overlapping step structure of a fan wrinkle shape or a bellows shape.

To this end, the link 20 is moved to the right and left by using the guide channel 112 formed on the bottom surface of the cover space 111 so as to lead to the back of the flap blocking wall 113 with the hidden end length Y. is done

For example, the motor 30 is driven by power supply when the motor is driven, and the active cover 10 is folded by the right movement (or forward movement) of the link 20 by counterclockwise rotation (eg, reverse rotation), The active cover 10 is unfolded by the left movement (or backward movement) of the link 20 by clockwise rotation (eg, forward rotation). In this case, the right movement and the left movement may be set to reversely operate the active cover 10 .

Hereinafter, practical configuration examples of the active cover 10 , the link 20 and the motor 300 will be described.

Specifically, the active cover 10 is composed of a foldable flap 11, and the foldable flap 11 has the first to N flaps 11-1,.. .,11-N) (N is an integer of 2 or more) is formed in a structure connected to each other. In this case, the first to N flaps 11-1, ..., 11-N are illustrated as the first to sixth flaps 11-1, ..., 11-6, but the size of the cover space 110 is (Size) may be composed of less than or more than six.

As an example, each of the flaps constituting the first to N flaps 11-1, ..., 11-N is formed in a rectangular plate shape with a protruding jaw 13, a stepped groove 15, and a hinge shaft 17. to provide However, the N-th flap (11-N), which is an end flap having the last position among the first to N flaps (11-1, ..., 11-N), is depressed by forming a straight surface without the protruding surface (13). There is a difference that only the face 15 is formed. In this case, the straight surface of the N-th flap 11-N may be transformed into various shapes depending on the surface shape or structure of the flap blocking wall 113 on one side formed by the cover space 111 of the bumper 110. can

To this end, the protruding jaw 13 is formed in the flap with the same size at the position opposite to each other on the other side of the same flap, and the hinge shaft 17 protrudes with respect to the flap surface on one side of the flap. The jaws 13 protrude from the upper and lower portions forming the right-angled stepped surface, respectively, and fit into the shaft hole formed in the stepped groove 15 .

Therefore, the protruding protrusion 13 and the stepped groove 15 are connected to each other as the protruding protrusion 13 of the first flap 11-1 is fitted into the stepped groove 15 of the second flap 11-2. Forms a concave-convex structure that is assembled with respect to the hinge shaft 17, and gives a hinge movement to each of the flaps constituting the first to N flaps (11-1, ..., 11-N) By doing so, the first to N flaps 11-1, ..., 11-N are folded in an unfolded state with respect to each other to form an overlapping step structure of a fan pleat shape or a bellows shape.

For example, the link 20 uses a flap link 21 , a movable bar 26 and a connection end 27 for supporting the active cover 10 using a support bar 22 and a flap fixing jaw 23 . and a motor link 25 for moving the active cover 10 . In this case, the motor link 25 is exemplified to have a gentle curve, but this gentle curved structure is deformed according to the structure formed in the guide channel 112 formed on the bottom surface of the cover space 111 .

To this end, the support bar 22 is composed of a horizontal portion and a vertical portion of an “L” shape, and the first to N flaps 11-1, the vertical portion constituting the folding flap 11 of the active cover 10, .

In particular, the flap fixing jaw 23 protrudes from the upper and lower portions forming a stepped surface at right angles to the support bar 22, and is inserted into the shaft hole formed in the stepped groove 15 of the first flap 11-1. The first flap 11-1 gives a hinge movement with respect to the support bar 22 while forming a concave-convex structure that is assembled with respect to each other.

And the moving bar 26 is gear-engaged with the pinion 31 of the motor 30 with a tooth surface using the rack 26-1, so that it moves in a counterclockwise direction according to the rotation direction of the motor 30 to the right (or forward). movement) and leftward movement (or retreating movement) of clockwise rotation, and the connecting end 27 is connected to the horizontal part of the support bar 22 at one end of the moving bar 26 to connect the moving bar 26 . It is formed integrally with the support bar (22).

Further, the link 20 has the entire length of the moving bar 26 as the link moving length (L), and the folding flap 11 exceeds the moving bar 26 in the deployed state over the length of the projecting length (Over Length) ( X) is formed.

In particular, the over length (X) is formed to be longer than the hidden end length (Y) (see FIG. 2), because the moving bar 26 passes the link movement length (L) and the hidden end length (Y). While moving along the guide channel 112 of the cover space 111 to the active cover 10, the N-th flap 11-N of the folding flap 11 This is so that the over length (X) is reduced by the hidden end length (Y) in the state constrained to . Then, the difference of the over length (X) with respect to the hidden end length (Y) is a fan pleat shape or bellows shape overlapping step structure in which each of the first to N flaps 11-1, ..., 11-N is spread to some extent. because it can be formed by

In addition, the starting position of the link movement length L is a motor control signal (refer to FIG. 4) of motor ON (or motor OFF), while the end position is a motor control signal (refer to FIG. 4) of motor OFF (or motor ON). By being set in the controller 40, the motor 30 may be stopped when the N-th flap 11-N comes into contact with the flap blocking wall 113 .

And the starting position of the over length (X) or the hidden end length (Y) is the motor control signal (see Fig. 4) of the motor ON (or motor OFF) while the end position is the motor control signal of the motor OFF (or motor ON) (refer to FIG. 4) and set in the controller 40 so that the first flap from the N-1th flap 11-N-1 in the state where the N-th flap 11-N is in contact with the flap blocking wall 113 (11-1) is sequentially folded so that it can be formed in the overlapping step structure of the fan wrinkle shape or the bellows shape.

For example, the motor 30 is driven by a simulated power supply, and the active cover 10 is folded by the right movement (or forward movement) of the link 20 by counterclockwise rotation (eg, reverse rotation), and the active cover 10 is rotated in a clockwise direction. The active cover 10 is unfolded by the left movement (or backward movement) of the link 20 by rotation (eg, forward rotation). In this case, the right movement and the left movement may be set to reversely operate the active cover 10 .

To this end, the motor 30 is provided with a pinion 31 on the motor shaft, and the pinion 31 is geared with the rack 26-1 formed on the moving bar 26 of the link 20 and the motor 30 ) to transmit the rotational force to the moving bar 26 . In this case, the gear structure using the pinion 31 and the rack 26-1 may be changed to various gear structures or linear guide structures if necessary.

Meanwhile, referring to FIG. 2 , the active aerodynamic variable device 1 includes a controller 40 , a signal generator 50 and an information detection unit 60 .

For example, the controller 40 operates as a central processing unit having a memory in which the motor control logic is programmed and stored, thereby controlling the on/off operation of the motor 30 and counterclockwise/clockwise rotation of forward/reverse rotation. give.

For example, the signal generating unit 50 and the information detecting unit 60 are connected to the controller 40 by an electric signal line. The signal generator 50 transmits a signal for the operation of unfolding or overlapping the active cover 10 to the controller 40 , and a button or a switch may be applied to the signal generation. The information detection unit 60 detects control information of the motor 30 for the operation of the active cover 10 as external environment information and transmits it to the controller 40 , and a plurality of sensors may be applied to the information detection.

Meanwhile, FIGS. 3 to 6 illustrate a state in which the active aerodynamic variable device 1 applied to the vehicle 100 is operated in a plurality of modes according to vehicle driving conditions.

Referring to FIG. 3 , the vehicle 100 includes an active aerodynamic variable device 1 as a cover space 111 of a bumper 110 mounted on a front portion.

Specifically, the bumper 110 forms a cover space 111 as a left and right cover space, respectively, to form a fog lamp portion in which a fog lamp 120 is located, and each of the left and right cover spaces the aerodynamic active aerodynamic adjustment device (1) provided by blanking cover portion (blanking cover portion) and the drag coefficient (C _D), the increase or the vehicle 100 is raised on the fog lamp unit influences the aerodynamic as each can be improved

Specifically, the active aerodynamic variable device 1 includes an active cover 10 , a link 20 , a motor 30 , a controller 40 , a signal generator 50 and an information detection unit 60 , as shown in FIG. 1 . It is the same as the active aerodynamic variable device 1 described through FIG.

However, the controller 40 is located in the engine room of the vehicle 100 or its periphery, is connected to the signal generator 50 and the information detector 60 through a CAN (Controller Area Network) to communicate with each other, and generates the signal The unit 50 is located on the dashboard of the driver's seat of the vehicle 100 as a button or a switch and transmits a signal for the operation of unfolding or overlapping the active cover 10 to the controller 40 .

In particular, the information detection unit 60 is located in the engine room of the vehicle 100 and reads information of mounted sensors applied as basic sensors to the vehicle 100 , and external environment information (eg, vehicle speed, accelerator pedal/brake pedal opening degree signal) , engine speed, and vehicle driving information) are detected, the fuel efficiency mode ON/OFF and the air brake mode are checked, and a signal for the operation is transmitted to the controller 40 .

Therefore, the controller 40 may be an engine ECU (Electronic Control Unit) of the vehicle.

Referring to FIG. 4 , a case in which the active aerodynamic variable device 1 is operated in the fuel economy mode in the vehicle 100 is exemplified. In this case, the motor 30 of the active aerodynamic variable device 1 is based on the motor control signal of the controller 40 or the vehicle speed or the accelerator pedal signal by the fuel efficiency mode OFF -> ON switching button signal of the signal generator 50 It may be driven by the motor control signal of the controller 40 by the fuel efficiency mode OFF -> ON switching signal of the one information detection unit 60 . In addition, the rotation of the motor 30 will be described with a reverse rotation as a counterclockwise rotation and a forward rotation as a clockwise rotation.

As shown, the rotation of the motor 30 is transmitted to the moving bar 26 of the motor link 25 through the rack 26-1 meshed with the pinion 31, so that the link 20 receives the force. do. Then, the rotational force due to the counterclockwise rotation of the motor 30 is generated by moving the moving bar 26 to the right (or forward moving) with respect to the front of the vehicle 100 along the guide channel 112 . The support bar 22 is also moved to the right (or moved forward) together, and the folding flap 11 is a link movement length (L) in the unfolded state of the first to N flaps (11-1, ..., 11-N). ) to move In this case, the controller 40 stops the driving of the motor 30 when the N-th flap 11-N comes into contact with the flap blocking wall 113 of the cover space 111 .

As a result, the active cover 10 covers the cover space 111 of the bumper 110 with the folding flap 11 having the first to N flaps 11-1, ..., 11-N unfolded to form a deployment structure. By giving the driving wind resistance to the fog lamp part, which has a large effect on aerodynamics, is reduced by removing the air resistance of the cover space 111 in accordance with the fuel efficiency mode requirement of a certain vehicle speed or higher, which lowers the drag coefficient (C _D ) to the vehicle ( 100) to increase the fuel efficiency improvement effect.

On the other hand, referring to FIG. 5 , a case in which the active aerodynamic variable device 1 is operated in the air brake mode in the vehicle 100 is exemplified. In this case, the motor 30 of the active aerodynamic variable device 1 turns on the fuel efficiency mode of the signal generator 50 -> the motor control signal of the controller 40 or the vehicle speed or the accelerator pedal signal by the air brake mode ON button signal Fuel economy mode ON of the information detection unit 60 based on -> air brake mode ON conversion signal is driven by the motor control signal of the controller 40. In addition, the rotation of the motor 30 will be described with a reverse rotation as a counterclockwise rotation and a forward rotation as a clockwise rotation.

As shown, the rotation of the motor 30 is transmitted to the moving bar 26 of the motor link 25 through the rack 26-1 meshed with the pinion 31, so that the link 20 receives the force. do. Then, the moving bar 26 is moved to the right (or forward moved) up to the hidden end length Y by the rotational force caused by the counterclockwise rotation of the motor 30 , while the support bar 22 blocks the flap of the cover space 111 . Movement is restricted to the wall 113 .

Then, the first to N flaps 11-1, ..., 11-N are the N-1th flaps 11 through the hinge shaft 17 with the force applied by the support bar 22 in the fully unfolded state. -N-1) is folded with respect to the N-th flap (11-N), so that the first flap 11-1 is folded with respect to the adjacent flap, so that the folding flap 11 is a fan pleat shape or a bellows shape It is formed in an overlapping step structure. In this case, the controller 40 stops the driving of the motor 30 when the moving bar 26 comes into contact with the hidden end length Y.

As a result, the active cover 10 overlaps the large step in the cover space 111 of the bumper 110 through the foldable flap 11 in which the first to N flaps 11-1, ..., 11-N are folded. By forming a step structure, the driving wind resistance against the fog ramp, which has a large effect on aerodynamics, is increased to the air resistance of the cover space 111 in accordance with the air brake mode requirements such as sudden braking, which increases the drag coefficient (C _D ) By increasing it, the air brake effect of the vehicle 100 is increased to improve the braking performance.

Referring to the simulation result in the vehicle 100 to which the active aerodynamic variable device 1 is applied as shown in FIG. 6 , the simulation result shows that the vehicle 100 sets the drag coefficient C _{D in the} air brake mode to the active aerodynamic variable device fuel economy mode. It is exemplified by increasing the contrast by about 10% or more.

That is, the vehicle 100 having the effect of the active cover 10 compared to the vehicle 100 not having the effect of the active cover 10 _{increases the drag coefficient C D} to about 10% or more in the air brake mode. It is experimentally proven that emergency braking performance is improved during sudden braking through the brake area K.

On the other hand, the air brake mode OFF -> fuel economy mode ON -> fuel economy mode OFF is the same as the operating state by clockwise rotation in the reverse direction of the rotation direction of the motor 30 described in FIGS. 4 and 5 , so detailed description will be omitted. .

As described above, in the active aerodynamic variable device 1 applied to the vehicle 100 according to the present embodiment, the active cover 10 in which the unfolded state and the overlapped state are switched, one side of the active cover 10 is fixed. The link 20 in which the left movement (or backward movement) for the unfolded state and the right movement (or forward movement) for the overlapping state is formed, and a motor that transmits the forward movement and the backward movement to the link 20 in the forward and reverse rotation direction ( _{30), the drag coefficient (C D} ) due to the driving wind passing through the bumper 110 can be lowered or raised in the fuel efficiency mode and the air brake mode of the active cover 10, and in particular, fuel economy is improved in the fuel economy mode while driving While this is possible, the air brake effect is also possible with the air brake mode during sudden braking.

1: Active aerodynamic variable device
10: active cover 11: folding flap
11-1, ..., 11-N: first to N flaps
13: protruding jaw 15: stepped groove
17: hinge axis 20: link
21: flap link 22: support bar
23: flap fixing jaw 25: motor link
26: moving bar 26-1: rack
27: connection end 30: motor
31: pinion 40: controller
50: signal generation unit 60: information detection unit
100: vehicle 110: bumper
111: cover space 112: guide channel
113: flap blocking wall 120: fog lamp (Fog Lamp)

Claims (21)

an active cover consisting of first,,,,.N flaps (N is an integer of 2 or more); and
a link for fixing one side of the first,,,,.N flap (N is an integer of 2 or more); and a motor;
While the link is moved by the rotation of the motor, the front area of the active cover is changed as the first to N flaps (N is an integer of 2 or more) overlap or unfold.
Active aerodynamic variable device, characterized in that.
The method according to claim 1, wherein when the motor rotates counterclockwise, the link is moved to the right with respect to the front surface of the active cover to form an overlapping state, and when the motor rotates clockwise, the active cover is rotated in a clockwise direction. Active aerodynamic variable device, characterized in that by moving the link to the left relative to the front to form an unfolded state.
The active aerodynamic modifier according to claim 1, wherein the active cover is arranged perpendicular to the length of the link.
The method according to claim 1, wherein in the unfolded state, the first,,,,.N flaps (N is an integer greater than or equal to 2) form an over-length beyond the link, and the overlapping state is determined by reducing the over-length. 1,,,,.N Active aerodynamic variable device, characterized in that each of the flaps (N is an integer of 2 or more) are formed by folding with respect to each other.
The method according to claim 1, wherein each of the first,,,,.N flaps (N is an integer greater than or equal to 2) are connected in a concave-convex structure, and the concave-convex structure has a hinge axis as a rotation center for the first ,,,,.N flaps (N is an integer of 2 or more) active aerodynamically variable device, characterized in that to form the overlapping state.
The active aerodynamic variable device according to claim 5, wherein the hinge shaft protrudes from the concave-convex structure.
The active aerodynamic variable device according to claim 5, wherein the hinge shaft protrudes in both directions of the concave-convex structure.
The method according to claim 1, wherein the link is formed integrally with a flap link having a flap fixing part to which the first flap of the first,,,,.N flaps (N is an integer of 2 or more) is fixed, and the flap link. Active aerodynamic variable device, characterized in that it consists of a motor link that receives a rotational force.
The method according to claim 8, wherein the flap fixing portion connects the flap link and the first flap in a concave-convex structure, wherein the concave-convex structure has a hinge axis as a center of rotation so that the first flap is positioned with respect to the flap link. Active aerodynamic variable device, characterized in that to be folded.
The active aerodynamic variable device according to claim 1, wherein the link and the motor are meshed with a gear, and the gear is a pinion coupled to a motor shaft of the motor to transmit the rotational force to a rack formed in the link.
An active cover for switching between an unfolded state and a nested state, a link in which a left movement for the unfolded state and a right movement for the overlapped state are formed with respect to the front of the vehicle in a state in which one side of the active cover is fixed, and a counterclockwise movement an active aerodynamic variable device comprising a motor for moving the link to the right and to the left in directional rotation and clockwise rotation; and
a bumper mounted on the front of the vehicle and having a cover space provided with the active aerodynamic variable device;
Vehicle characterized in that it is included.
The vehicle according to claim 11, wherein the bumper divides the cover space into a left cover space and a right cover space, and the active aerodynamic variable device is provided in each of the left cover space and the right cover space.
The method according to claim 11, wherein the active cover covers the cover space in the unfolded state to reduce the air resistance of the cover space due to the running wind, while forming an overlapping step structure in the cover space in the overlapping state to reduce the air resistance of the cover space due to the running wind. Vehicle characterized in that it increases the air resistance of the cover space.
The vehicle according to claim 13, wherein the overlapping step structure has a fan pleat shape or a bellows shape.
The method according to claim 11, wherein the cover space is formed with a guide channel out of the flap blocking wall on one side of the cover space with a hidden end length, the guide channel guides the movement of the link so that the active cover forms the unfolded state. and the hidden end length permits movement of the link such that the active cover contacts the flap blocking wall to convert the unfolded state to the overlapped state.
The vehicle according to claim 11, wherein the active aerodynamic variable device includes a controller, wherein the controller controls the driving of the motor and controls the movement direction of the link in counterclockwise rotation and clockwise rotation.
The vehicle according to claim 16 , wherein the controller controls the active aerodynamic variable device in a fuel economy mode or an A-Brake mode following the fuel economy mode.
The vehicle of claim 17 , wherein the fuel economy mode reduces air resistance of the cover space due to a driving wind passing through the bumper by opening the active cover so that the cover space is covered.
The vehicle according to claim 17, wherein the A-Brake mode increases air resistance of the cover space by a driving wind passing through the bumper with the active cover overlapped to form an overlapping step structure in the cover space. .
The vehicle according to claim 16, wherein the controller is linked to a signal generator, and the signal generator requests the controller to drive the motor with a button or a switch.
The method according to claim 16, wherein the controller is linked to an information detection unit, and the information detection unit requests the controller for the fuel economy mode and the air brake mode using any one of a vehicle speed, an engine speed, an accelerator pedal signal, and a brake pedal signal. Characterized vehicle.

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