KR20150057811A - Diffuser of vehicle and control method for diffuser of vehicle - Google Patents

Abstract

The present invention relates to a vehicle diffuser to correct under steering and over steering and to allow the internal storage. The vehicle diffuser may comprise: a lateral lift generator which is installed on the bottom of a vehicle to generate leftward lift to be applied from the right to the left or rightward lift applied from the left to the right based on the traveling direction of the vehicle; a vehicle movement detection sensor to detect the movement of the vehicle; and a control part receiving a vehicle moving signal from vehicle movement detection sensor to apply a lift control signal to the lateral lift generator.

Description

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a vehicle diffuser,

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a vehicle diffuser and a vehicle diffuser control method, and more particularly, to a vehicle diffuser and a vehicle diffuser control method capable of correcting understeering and oversteering, .

 The rear diffuser mounted on the vehicle is a device mounted on the lower part of the rear of the vehicle to control cavitation, which is a vortex of the air generated when the air flowing into the lower part of the vehicle is dropped to the rear of the vehicle at high speeds, , Aluminum, resin, and composite materials.

On the other hand, when the car is running, the air is pushed from the front side to the top and to the left and left side, and the air that is pushed back then returns to its original position. However, it takes time for the air to return to its original position, and the longer it takes, the more vacuum is generated behind the car. The vacuum created here pulls the car from behind and the car is subjected to the resistance of the air, and vortices occur.

Due to such a vortex phenomenon, when the vehicle runs at high speed, lift phenomenon occurs in which the vehicle body floats. To prevent this, it is a kind of wing-like aerodynamic device on the bottom of the back of the vehicle.

That is, the main purpose of the conventional diffuser of a vehicle is to control the vortex behind the vehicle to secure the stability of the vehicle when the vehicle runs at high speed.

However, such a conventional vehicle diffuser has a problem that when the vehicle is out of the normal normal steering path regardless of the steering wheel operation of the driver due to cornering or oversteering at medium or high speed, that is, when the vehicle does not reach the normal normal steering path It is not possible to give any assistance to the vehicle when the vehicle runs on an under-steering path that can not be reached or on an over-steering path that exceeds the normal steering path.

In addition, the conventional diffuser of the vehicle always protrudes toward the outside of the vehicle, which has a problem of occupying a large space.

SUMMARY OF THE INVENTION The present invention has been made to solve the above-mentioned problems, and it is an object of the present invention to provide a vehicle stability control system capable of ensuring stability at a high speed of a vehicle, and to offset the understeering or oversteering phenomenon, A vehicle diffuser and a vehicle diffuser control method capable of greatly improving steering performance and safety, and capable of increasing the space utilization by being housed in a vehicle. However, these problems are exemplary and do not limit the scope of the present invention.

According to an aspect of the present invention, there is provided a vehicular diffuser, which is provided on a lower surface of a vehicle and generates a leftward lift force acting from the right side to the left side of the vehicle on the basis of a traveling direction of the vehicle, A lateral lifting device capable of generating a right lifting force to be generated by the lifting device; A vehicle behavior detection sensor for detecting the behavior of the vehicle; And a controller for receiving a vehicle behavior signal from the vehicle behavior detection sensor and applying a lift control signal to the lateral lift generator.

Further, according to the idea of the present invention, the lateral direction lift generation device can be installed on the rear upper surface of the vehicle.

According to an aspect of the present invention, there is provided a lateral lift-generating device comprising: at least one vertical blade rotated around a rotation axis provided in a vertical direction and capable of changing a steering angle; And a rotation actuator capable of rotating the vertical blade.

The diffuser of the vehicle according to an aspect of the present invention may further include a wing accommodation device capable of accommodating the lateral side lift generating device in the accommodation space of the vehicle or drawing it out to the outside of the accommodation space.

According to an aspect of the present invention, the vane accommodating device further comprises: a movable base on which the lateral side lift generator is installed; And a movable band actuator for moving the movable band.

According to an aspect of the present invention, the movable band actuator may be a rotary motor that rotates a rotary shaft installed at one side of the movable band.

According to an aspect of the present invention, the vehicle behavior detection sensor may be a steering detection sensor capable of detecting an understeering state or an oversteering state of the vehicle.

According to an aspect of the present invention, the steering detection sensor includes at least a steering angle sensor for sensing a steering angle, a vehicle speed sensor for sensing a vehicle speed, a lateral acceleration sensor, a yaw rate sensor, An acceleration sensor for detecting the acceleration of the vehicle, a gravity sensor for sensing gravity, a traveling direction sensor for detecting the traveling direction of the vehicle, a position sensor for detecting the position of the vehicle, A steering wheel angle measuring sensor for measuring a steering angle of the steering wheel, and a steering wheel angle measuring sensor for measuring a turning angle of the steering wheel, and a combination thereof.

According to an aspect of the present invention, the control unit receives the vehicle behavior signal from the vehicle behavior detection sensor and compares the received vehicle behavior signal with normal steering data, determines the understeering path when the vehicle behavior signal is insufficient for normal data, If the behavior signal exceeds the normal data, it may be determined to be an over-steering path.

According to an aspect of the present invention, when the behavior of the vehicle is determined to be understeering, an understeering canceling control signal for canceling understeering is applied to the lateral lift generating device, and the behavior of the vehicle If it is determined to be oversteering, it may be to apply an oversteering cancellation control signal to the lateral lift generator to offset oversteering.

According to another aspect of the present invention, there is provided a method of controlling a vehicle diffuser, comprising the steps of: collecting signals of a steering angle sensor and a vehicle speed sensor during a running of a vehicle to calculate a theoretical vehicle behavior value required for neutral steering; Measuring actual vehicle behavior data by collecting signals of a lateral acceleration sensor and a yaw rate sensor mounted on the vehicle; Comparing the theoretical vehicle behavior value with actual vehicle behavior data to determine whether the vehicle is under-steering or over-steering; Determining whether the magnitude of the deficient steering value or the magnitude of the excessive steering value is within an allowable range for safe operation; When the driver is determined to be in a safe state, the driver outputs a steering control signal to rotate at least one vertical vane provided in the diffuser of the vehicle in an inward direction of the turning radius, Outputting a steering control signal for rotating at least one vertical vane provided in the diffuser of the diffuser in the outward direction of the turning radius; And a steering control signal and a vehicle brake control signal for rotating at least one vertical vane installed in the diffuser of the vehicle in the outward direction of the turning radius automatically in accordance with the safe running set value when judged to be in a dangerous state And outputting a steering control signal and a vehicle brake control signal for rotating at least one vertical vane provided in the diffuser of the vehicle in an inward direction of the turning radius when the vehicle is oversteering.

According to an aspect of the present invention, when it is determined that the vehicle is in the dangerous state, the steering control signal and the vehicle brake control signal are automatically output according to the safe running set value, the steering control signal and the vehicle brake control signal are output, In the step of outputting the vehicle brake control signal, in the under-steering, the vehicle brake control signal is an inner wheel brake control signal or an engine brake signal of an ESC (Electric Stability Control) system, The signal may be an outer wheel brake control signal or an engine brake signal of an ESC (Electric Stability Control) system.

According to some embodiments of the present invention as described above, stable running of the vehicle is enabled, understeering or oversteering of the vehicle can be prevented, and space utilization can be increased. Of course, the scope of the present invention is not limited by these effects.

1 is an operating state perspective view illustrating a vehicle diffuser in accordance with some embodiments of the present invention.
Fig. 2 is a plan view conceptually showing the preparation state of the diffuser of the vehicle of Fig. 1. Fig.
Fig. 3 is a plan view showing the left-side lift generation state of the diffuser of the vehicle of Fig. 2;
Fig. 4 is a plan view showing the right lift generated state of the diffuser of the vehicle of Fig. 2; Fig.
Fig. 5 is a side view showing the housed state of the wing accommodation device of the diffuser of the vehicle of Fig. 1; Fig.
Fig. 6 is a side view showing the drawn-out state of the wing accommodation device of the diffuser of the vehicle of Fig. 1;
Fig. 7 is a plan view showing the operating state of the diffuser of the vehicle of Fig. 1 when understeering; Fig.
8 is a plan view showing an operating state of the diffuser of the vehicle of FIG. 1 upon oversteering.
Figure 9 is a top view of a diffuser of a vehicle in accordance with some further embodiments of the present invention.
10 is a flowchart showing a method of controlling a diffuser of a vehicle according to some embodiments of the present invention.

Hereinafter, preferred embodiments of the present invention will be described in detail with reference to the accompanying drawings.

The embodiments of the present invention are described in order to more fully explain the present invention to those skilled in the art, and the following embodiments may be modified into various other forms, The present invention is not limited to the embodiment. Rather, these embodiments are provided so that this disclosure will be more thorough and complete, and will fully convey the concept of the invention to those skilled in the art. In the drawings, the thickness and size of each layer are exaggerated for convenience and clarity of explanation.

It is to be understood that throughout the specification, when an element such as a film, region or substrate is referred to as being "on", "connected to", "laminated" or "coupled to" another element, It will be appreciated that elements may be directly "on", "connected", "laminated" or "coupled" to another element, or there may be other elements intervening therebetween. On the other hand, when one element is referred to as being "directly on", "directly connected", or "directly coupled" to another element, it is interpreted that there are no other components intervening therebetween do. Like numbers refer to like elements. As used herein, the term "and / or" includes any and all combinations of one or more of the listed items.

Although the terms first, second, etc. are used herein to describe various elements, components, regions, layers and / or portions, these members, components, regions, layers and / It is obvious that no. These terms are only used to distinguish one member, component, region, layer or section from another region, layer or section. Thus, a first member, component, region, layer or section described below may refer to a second member, component, region, layer or section without departing from the teachings of the present invention.

Also, relative terms such as "top" or "above" and "under" or "below" can be used herein to describe the relationship of certain elements to other elements as illustrated in the Figures. Relative terms are intended to include different orientations of the device in addition to those depicted in the Figures. For example, in the figures the elements are turned over so that the elements depicted as being on the top surface of the other elements are oriented on the bottom surface of the other elements. Thus, the example "top" may include both "under" and "top" directions depending on the particular orientation of the figure. If the elements are oriented in different directions (rotated 90 degrees with respect to the other direction), the relative descriptions used herein can be interpreted accordingly.

The terminology used herein is for the purpose of describing particular embodiments only and is not intended to be limiting of the invention. As used herein, the singular forms "a," "an," and "the" include singular forms unless the context clearly dictates otherwise. Also, " comprise "and / or" comprising "when used herein should be interpreted as specifying the presence of stated shapes, numbers, steps, operations, elements, elements, and / And does not preclude the presence or addition of one or more other features, integers, operations, elements, elements, and / or groups.

Hereinafter, embodiments of the present invention will be described with reference to the drawings schematically showing ideal embodiments of the present invention. In the figures, for example, variations in the shape shown may be expected, depending on manufacturing techniques and / or tolerances. Accordingly, the embodiments of the present invention should not be construed as limited to the particular shapes of the regions shown herein, but should include, for example, changes in shape resulting from manufacturing.

2 is a plan view conceptually showing a preparation state of the diffuser 100 of the vehicle of FIG. 1, and FIG. 3 is a plan view of the diffuser 100 of FIG. 1, Fig. 4 is a plan view showing the right lift generated state of the diffuser 100 of the vehicle shown in Fig. 2; Fig. 4 is a plan view showing the left lift generated state of the diffuser 100 of the vehicle shown in Fig.

First, as shown in FIGS. 1 and 2, a diffuser 100 of a vehicle according to some embodiments of the present invention includes a lateral lift generator 10, a vehicle behavior detection sensor 20, (30).

The lateral side elevation generator 10 is provided on the rear lower surface 1b of the vehicle 1 and is provided with a plurality of lateral lift generating devices 10 which act on the right side to the left side of the vehicle 1 with reference to the traveling direction of the vehicle 1. [ 3 that generates the left lift F 1 of FIG. 4 or the right lift F 2 of FIG. 4 that acts from the left to the right. In addition, the lateral side elevation generator 10 can also be installed on the front, bottom, or the like of the vehicle 1.

For example, the lateral lift generator 10 may include a vertical wing 11 and a tilt actuator 12, as shown in Figs. 1-4.

Here, the vertical vane 11 may be at least one wing-shaped structure that is rotated around a rotary shaft 11a installed in a vertical direction and can change the steering angle K1 (K2).

A plurality of vertical blades 11 may be installed at regular intervals. In FIG. 1, five vertical blades 11 are illustrated. However, a plurality of vertical blades 11, such as one to dozens or more, Can be applied.

In addition, the cross-sectional shape of the vertical blade 11 may be various, such as a streamline shape, a plate shape or a curved shape. The rotary shaft 11a of the vertical blade 11 may also be installed at various positions such as the front, rear, and middle portions of the vertical blade 11.

Further, for example, although not shown, a supporting blade fixed to the vehicle 1 may be installed on the side surface of the vertical blade 11. [

The above-mentioned vertical blade 11 may be a metal material, a resin material, wood, or a composite material having an appropriate strength to withstand the resistance of air at the time of driving the vehicle 1 at a high speed.

In addition, the vertical vanes 11 can adjust the magnitude of the left lift F1 or the right lift F2 according to the angle.

The rotary actuator 12 is an actuator capable of rotating the vertical vanes 11 and is installed in each of the vertical vanes 11 to form respective vertical vanes 11 11 can be individually controlled.

In addition, the rotary actuator 12 may be a cylinder, a solenoid, various combinations of links connected thereto, a rack and pinion gear combination, a bevel gear combination, a belt and pulley combination, Various actuators and power transmission devices such as a rod-and-pinion combination, a combination of a chain and a sprocket wheel, a combination of a wire and a pulley, an engine, an internal combustion engine, In addition, the vertical blades 11 may be interlocked with each other by power transmission devices.

The vehicle behavior detection sensor 20 may be various sensors installed in the vehicle 1 and capable of detecting the behavior of the vehicle 1. For example,

For example, the vehicle behavior detection sensor 20 may be a steering detection sensor capable of sensing an understeering state or an oversteering state of the vehicle 1. [

More specifically, the steering sensor includes at least a steering angle sensor for sensing a steering angle, a vehicle speed sensor for sensing a vehicle speed, a lateral acceleration sensor, a yaw rate sensor, a rotation speed sensor An acceleration sensor for detecting the acceleration of the vehicle, a gravity sensor for sensing gravity, a traveling direction sensor for detecting the traveling direction of the vehicle, a position sensor for detecting the position of the vehicle, A wheel angle measuring sensor for measuring a wheel angle, a steering wheel angle measuring sensor for measuring a turning angle of the steering wheel, and a combination thereof. Here, the description of these various sensors is well known and widely commercialized, and a detailed description thereof will be omitted here.

The control unit 30 receives a vehicle behavior signal from the vehicle behavior detection sensor 20 and applies a lift control signal to the lateral lift apparatus 10, When the vehicle behavior signal is received from the sensor 20 and compared with the data of the normal normal steering path P1 of FIGS. 7 and 8, if the vehicle behavior signal is insufficient for the normal data, it is judged by the understeering path P2 of FIG. 7 And an engine control unit (ECU), various circuits, or a pre-input program (P3) that can determine the oversteer path P3 of FIG. 8 when the vehicle behavior signal exceeds the data of the normal steering path P1 And may be an information processing apparatus or an arithmetic operation unit such as a computer.

More specifically, when the behavior of the vehicle 1 is determined to be understeering, the control unit 30 applies the understeering canceling control signal to the lateral direction lift generator 10 to cancel the understeering, If it is determined that the behavior of the vehicle 1 is oversteering, it may be to apply an oversteering canceling control signal to the lateral lift generator 10, which offsets the oversteering.

Therefore, the operation of the diffuser 100 of the vehicle according to some embodiments of the present invention will be described. First, for example, while the driver is driving the vehicle 1, as shown in Fig. 2, 3, the driver rotates the steering wheel to the right side, and the vehicle 1 is stopped, as shown in FIG. 3, after the vertical vanes 11 are raised at an angle that coincides with the traveling direction of the vehicle 1, The vehicle behavior detection sensor 20 senses this and the right turn signal can be applied to the control unit 30. The control unit 30 controls the rotation actuator 12 to transmit a forward rotation control signal So that the vertical vanes 11 can rotate forward.

3, the vertical wing 11 is provided with a left-side lift (left-right lift) acting from the right side to the left side of the vehicle 1 on the basis of the traveling direction of the vehicle 1 so as to assist the right turn of the vehicle 1, (F1).

Conversely, as shown in FIG. 4, when the driver turns the steering wheel to the left by turning the steering wheel to the left, the vehicle behavior detection sensor 20 senses this and the left turn signal is applied to the control unit 30 And the control unit 30 can reverse the vertical vanes 11 by applying a reverse rotation control signal to the rotation actuator 12. [

4, the vertical blade 11 is provided with a right-side lift force (hereinafter referred to as " right-side lift ") acting from left to right of the vehicle 1 with respect to the traveling direction of the vehicle 1 so as to assist the left- (F2) can be generated.

Fig. 7 is a plan view showing an operating state of the diffuser 100 of the vehicle of Fig. 1 when understeering, and Fig. 8 is a plan view showing an operating state of the diffuser 100 of the vehicle of Fig. 1 upon oversteering.

7, for example, the control unit 30 compares data received from the vehicle behavior detection sensor 20 with a vehicle behavior signal to data of a normal normal steering path P1 If it is not enough, it can be judged as the understeering path (P2).

Then, when the behavior of the vehicle 1 is judged as understeering, the control unit 30 can apply the understeering canceling control signal to the lateral lift apparatus 10 to cancel the understeering.

Then, the controller 30 may apply a reverse rotation control signal to the rotary actuator 12 to rotate the vertical blades 11 in reverse.

7, the vertical vane 11 is provided with a guide groove 14a for guiding the vehicle 1 in the direction of canceling the understeering of the vehicle 1, The right lift F2 acting from the left to the right can be generated.

8, for example, the control unit 30 compares data received from the vehicle behavior detection sensor 20 with a vehicle behavior signal to data of a normal normal steering path P1 If it is exceeded, it can be determined to be the over-steering path P3.

Then, when the behavior of the vehicle 1 is determined to be oversteering, the control unit 30 may apply the oversteering canceling control signal to the lateral lift generator 10 to cancel oversteering.

Then, the control unit 30 may forward-rotate the vertical blades 11 by applying a forward rotation control signal to the rotation actuator 12. [

8, the vertical wing 11 is provided with a vertical guide vane 11 for guiding the vehicle 1 in the direction of canceling the oversteering of the vehicle 1, It is possible to generate the leftward lift F1 acting from the right to the left.

As a result, the diffuser 100 of the vehicle according to some embodiments of the present invention not only enables stable running of the vehicle, but also can prevent understeering or oversteering of the vehicle.

9 is a top view of a pivoting actuator 120 of a vehicle diffuser 300 according to some further embodiments of the present invention.

9, the pivoting actuator 120 includes a driven pinion gear 121 provided on the rotary shaft 11a of the vertical blade 11, and a rack gear 122 coupled to the driven pinion gear 121, A driving gear 124 which is engaged with the rack gear 123 and a motor 125 which rotates the driving gear 124.

Therefore, when the motor 125 rotates or rotates the driving gear 124 in a forward or reverse direction, the rack gear 123 engaged with the driving gear 124 moves forward or backward, A plurality of the driven pinion gears 121 provided on the respective driven pinion gears 11a can be rotated forward or reverse simultaneously. Here, the vertical blades 11 are engaged with one rack gear 123, and their steering angles may be the same.

Therefore, a plurality of the vertical vanes 11 can be simultaneously driven by using one motor.

In addition, although not shown, various types of rotary actuators may be applied, such as intermediate gears, or other belt / pulley, chain / sprocket wheel, wire / pulley, link,

Fig. 5 is a side view showing the housing state of the wing housing unit 40 of the vehicle 100 shown in Fig. 1, and Fig. 6 is a side view showing the wing housing unit 40 of the diffuser 100 of the vehicle shown in Fig. FIG.

5 and 6, the diffuser 100 of the vehicle according to some embodiments of the present invention is configured such that the lateral direction lift generator 10 is accommodated in the accommodation space A of the vehicle 1 (40) which can be drawn out to be exposed to the outside of the accommodation space (A).

For example, the vane accommodating device 40 may include a movable stand 41 on which the lateral side elevation generator 10 is installed and a movable stand actuator 42 for moving the movable stand 41 More specifically, the movable band actuator 42 may be a rotary motor that rotates a rotary shaft 41a provided on one side of the movable band 41. [

5, when the vehicle 1 is stopped, parked, or when the vehicle is not traveling in the low-speed traveling direction, the movable-side actuator 42 of the wing accommodation device 40 is rotated The vertical vanes 11 can be housed in the accommodating space A by positively rotating the movable stand 41 inward of the accommodating space A. [

6, when the vehicle 1 travels at a high speed, the movable band actuator 42 of the wing accommodation device 40 moves the movable band 41 to the outside of the accommodation space A So that the vertical blade 11 can be exposed to the outside of the accommodation space A.

Therefore, according to the present invention, the diffuser 100 of the vehicle according to some embodiments can expose the wings only when it is necessary to store them inside the vehicle, thereby increasing the space utilization and enhancing the appearance, Can be increased.

10 is a flowchart showing a method of controlling a diffuser of a vehicle according to some embodiments of the present invention.

10, the method of controlling the diffuser 100 of the vehicle 1 according to some embodiments of the present invention collects signals of the steering angle sensor and the vehicle speed sensor during traveling of the vehicle 1, (S1) of calculating a theoretical vehicle behavior value, a step S2 of measuring actual vehicle behavior data by collecting signals of a lateral acceleration sensor and a yaw rate sensor mounted on the vehicle 1, (S3) of comparing the behavior value and the actual vehicle behavior data to determine whether the vehicle is under-steering or over-steering, and determining whether the magnitude of the under-steering value or the magnitude of the excessive steering value is within an allowable range for safe operation At least one vertical blade 11 installed in the diffuser 100 of the vehicle 1 is rotated in the inward direction of the turning radius at the time of the under steering setting, reflecting the driver's intention, Steering agent (S5) of outputting a steering control signal for outputting a signal to rotate the at least one vertical blade (11) installed in the diffuser (100) of the vehicle (1) The steering control system automatically rotates the at least one vertical vane 11 installed in the diffuser 100 of the vehicle 1 in the outward direction of the turning radius in accordance with the safe running set value, A steering control signal for turning the at least one vertical blade 11 provided in the diffuser 100 of the vehicle 1 in the inward direction of the turning radius and a vehicle brake control signal (Step S6).

Here, in step S6, in the understeering, the vehicle brake control signal is an inner wheel brake control signal or an engine brake signal of an ESC (Electric Stability Control) system, and in the excessive steering, the vehicle brake control signal May be an outer wheel brake control signal or engine brake signal of an ESC (Electric Stability Control) system.

The ESC system is an abbreviation of Electric Stability Control (Program). The ESC system is intended to control the attitude of a vehicle, and various companies have developed an Electronic Stability Program (ESP), a Vehicle Dynamic Control (VDC) And has been named with various names.

In addition, the ESC system is a system that can control the rotation (transverse movement) of the vehicle during rapid rotation unlike the ABS and TCS for controlling the forward / backward movement of the vehicle. For example, However, the ESC system continuously monitors the steering direction and the direction of the vehicle in a normal direction, so that the driver can select the direction desired by the driver And the actual direction of the vehicle is compared. If it is determined that the car runs in a direction different from the intention of the driver, the driver can immediately operate and guide the vehicle in a desired direction.

While the present invention has been described with reference to exemplary embodiments, it is to be understood that the invention is not limited to the disclosed exemplary embodiments, but, on the contrary, is intended to cover various modifications and equivalent arrangements included within the spirit and scope of the invention. Accordingly, the true scope of the present invention should be determined by the technical idea of the appended claims.

1: vehicle
1b: when
F1: Left-hand lift
F2: Right lift
10: lateral lift generator
20: Vehicle behavior detection sensor
30:
40: wing storage device
A: accommodation space
41:
41a:
42: Actuator block actuator
43:
100: vehicle diffuser
11: vertical wing
11a:
K1, K2: steering angle
12: Rotating actuator
P1: normal steering path
P2: Understeering path
P3: Oversteering path

Claims (13)

A lateral lift generating device installed on a lower surface of the vehicle and capable of generating a left upward lift acting from the right side to the left side of the vehicle on the basis of the traveling direction of the vehicle or generating a right lift acting from left to right;
A vehicle behavior detection sensor for detecting the behavior of the vehicle; And
A controller for receiving a vehicle behavior signal from the vehicle behavior detection sensor and applying a lift control signal to the lateral lift generator;
The diffuser of the vehicle. The method according to claim 1,
The lateral lift generation device includes:
And is installed on the rear side of the vehicle. The method according to claim 1,
The lateral lift generation device includes:
At least one vertical blade rotated about a rotational axis provided in a vertical direction and capable of changing a steering angle; And
A pivoting actuator capable of rotating the vertical blade;
The diffuser of the vehicle. The method of claim 3,
The pivoting actuator includes:
A driven pinion gear provided respectively on a rotary shaft of the vertical blade;
A rack gear engaged with the driven pinion gear;
A driving gear engaged with the rack gear; And
A motor for rotating the driving gear;
The diffuser of the vehicle. The method according to claim 1,
A wing accommodation device capable of accommodating the lateral side elevation generation device in the accommodation space of the vehicle or being drawn out to the outside of the accommodation space;
Further comprising: a diffuser for the vehicle. 6. The method of claim 5,
The wing-
A movable stand on which said lateral lift generating device is installed; And
A movable band actuator for moving the movable band;
The diffuser of the vehicle. The method according to claim 6,
The movable unit actuator is a rotary motor that rotates a rotary shaft installed on one side of the movable stand. The method according to claim 1,
The vehicle behavior detection sensor includes:
A vehicle diffuser, which is a steering detection sensor capable of detecting an understeering state or an oversteering state of the vehicle. 9. The method of claim 8,
The steering sensor includes at least a steering angle sensor for sensing a steering angle, a vehicle speed sensor for sensing a vehicle speed, a lateral acceleration sensor, a yaw rate sensor, a rotation speed sensor for sensing the number of revolutions per wheel, Acceleration sensing sensor for sensing, gravity sensing sensor for sensing gravity, traveling sensor for detecting the traveling direction of the vehicle, position sensor for detecting the position of the vehicle, position sensor for detecting the position of the vehicle, A steering wheel angle measuring sensor for measuring a turning angle of the steering wheel, and a combination thereof. The method according to claim 1,
Wherein,
The vehicle behavior signal is received from the vehicle behavior detection sensor and is compared with normal steering data. If the vehicle behavior signal is insufficient for normal data, it is determined as an understeering path. If the vehicle behavior signal exceeds normal data, The diffuser of the vehicle. 11. The method of claim 10,
Wherein,
And when the behavior of the vehicle is determined to be understeering, an understeering canceling control signal for canceling understeering is applied to the lateral lift generator, and when the behavior of the vehicle is determined as oversteering, oversteering And applies an offset control signal to said lateral lift generators. Collecting signals of a steering angle sensor and a vehicle speed sensor while the vehicle is traveling, and calculating a theoretical vehicle behavior value required for neutral steering;
Measuring actual vehicle behavior data by collecting signals of a lateral acceleration sensor and a yaw rate sensor mounted on the vehicle;
Comparing the theoretical vehicle behavior value with actual vehicle behavior data to determine whether the vehicle is under-steering or over-steering;
Determining whether the magnitude of the deficient steering value or the magnitude of the excessive steering value is within an allowable range for safe operation;
When the driver is determined to be in a safe state, the driver outputs a steering control signal to rotate at least one vertical vane provided in the diffuser of the vehicle in an inward direction of the turning radius, Outputting a steering control signal for rotating at least one vertical vane provided in the diffuser of the diffuser in the outward direction of the turning radius; And
And outputs a steering control signal and a vehicle brake control signal for rotating at least one vertical vane provided in the diffuser of the vehicle in the outward direction of the turning radius automatically in accordance with the safe running setting value And outputting a steering control signal and a vehicle brake control signal for rotating at least one vertical vane provided in the diffuser of the vehicle in an inward direction of the turning radius when the vehicle is oversteering;
Gt; a < / RTI > vehicle. 13. The method of claim 12,
The step of outputting the steering control signal and the vehicle brake control signal in the case of under-steering, the step of outputting the steering control signal and the vehicle brake control signal in the over-steering, ,
In the understeering, the vehicle brake control signal is an inner wheel brake control signal or engine brake signal of an electric stability control (ESC) system,
Wherein in the oversteering, the vehicle brake control signal is an outer wheel brake control signal or an engine brake signal of an ESC (Electric Stability Control) system.

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