KR20230000554A - Structure for Tilting of Wheel - Google Patents

Abstract

The present invention relates to a wheel tilting structure and, more specifically, to a wheel tilting structure, which comprises: a vehicle body which constitutes a vehicle; a knuckle which is fastened to each wheel located on both sides of the vehicle body; a damper unit which is fastened to the knuckle located on both sides; a swing member to which the damper units are fastened at both ends respectively; a motor which is fastened to the swing member and of which both ends control the heightwise direction position of the wheel; a lower arm which has one end fastened to the bottom of the knuckle and the other end fastened to the vehicle body; and a control unit which is configured to apply a rotational force to the motor in response to the steering driving of the vehicle to apply an inclination to the swing member. The wheel tilting structure can provide stability to the vehicle body of the vehicle during cornering.

Description

Wheel tilting structure {Structure for Tilting of Wheel}

The present invention relates to a wheel tilting structure, and relates to a wheel tilting structure for varying the height of wheels located on both sides in response to turning of a small vehicle.

Currently, in order to improve the fuel efficiency of automobiles, research on improving the performance of a powertrain or reducing vehicle weight is being actively conducted.

As part of such research, various types of three-wheeled vehicles with one wheel and tire reduced compared to general vehicles are being sold or developed.

Three-wheeled vehicles have a great advantage not only in terms of weight reduction due to the reduction of wheels and tires, but also in improving fuel efficiency due to reduction in rolling resistance.

These 3-wheeled vehicles have an inverted triangle structure with 2 wheels on the front and 1 wheel on the rear, and a triangle with 1 wheel on the front and 2 wheels on the rear. There is a three-wheeled vehicle of the structure.

The front suspension of a three-wheeled vehicle having a conventional inverted triangle structure has a structure in which a bearing shaft is mounted between a vehicle body and an integrated suspension arm, and rotates around the bearing shaft during up/down movement of the front wheel.

In this case, when a lateral force is applied when the vehicle turns, there is almost no change in toe angle (the angle of the tire relative to the vehicle body) due to the compliance effect caused by the rigidity of the parts.

Therefore, in the suspension of this structure, when a three-wheeled vehicle turns, it is difficult to secure turning stability due to a change in lateral force toe between the front and rear wheels. In addition, a separate configuration for reducing the roll generated in the vehicle body according to turning is required.

Patent Document 1: Korean Patent Publication No. 10-2013-0073480

The present invention has been made to solve the above problems, and provides a wheel tilting structure for reducing the roll of a vehicle body according to turning by providing a wheel tilting structure.

An object of the present invention is to provide turning stability of a vehicle by providing swing members integrally fastened to wheels located on both sides.

The objects of the present invention are not limited to the above-mentioned objects, and other objects of the present invention not mentioned above can be understood by the following description and can be more clearly understood by the examples of the present invention. Also, the objects of the present invention may be realized by the means and combinations indicated in the claims.

A wheel tilting structure for achieving the object of the present invention described above includes the following configuration.

According to an embodiment of the present invention, a wheel tilting structure includes a vehicle body constituting a vehicle; Knuckles fastened to each wheel located on both sides of the vehicle body; Damper units each fastened to the knuckles positioned on the both sides; Swing members to which each damper unit is fastened to both ends; a motor coupled to the swing member and having both ends controlling a position of the wheel in a height direction; a lower arm having one end engaged with the lower end of the knuckle and the other end engaged with the vehicle body; and a control unit configured to apply a rotational force of the motor in response to turning of the vehicle and apply an inclination of the swing member.

In addition, the control unit includes a wheel tilting structure configured to control a rotational angle of the swing member so as to move in a height direction integrally with wheels located on both sides of the motor.

The control unit may include a wheel tilting structure that determines the inclination angle of the vehicle body and controls the motor to increase the height of the wheel on one side of the inclination in response to the inclination angle of the vehicle.

In addition, when one end of the swing member moves in the height direction of the vehicle, the other end of the swing member includes a wheel tilting structure configured to move in a direction opposite to the moving direction of one end of the swing member.

The present invention can obtain the following effects by combining and using the above embodiments and configurations to be described below.

The present invention can provide stability of the vehicle body when the vehicle turns, and thus has an effect of improving driving performance.

In addition, the present invention has an effect of providing a wheel tilting structure capable of more efficiently supporting a lateral load of a wheel center by providing a wheel tilting structure including a lower arm.

1 shows a three-wheeled vehicle including a wheel tilting structure as an embodiment of the present invention.
Figure 2 shows a perspective view of a wheel tilting structure as an embodiment of the present invention.
3 is a side view of a wheel tilting structure according to an embodiment of the present invention.
4 illustrates a structure of a fastening point of a wheel tilting structure as an embodiment of the present invention.

Hereinafter, embodiments of the present invention will be described in more detail with reference to the accompanying drawings. Embodiments of the present invention may be modified in various forms, and the scope of the present invention should not be construed as being limited to the following examples. This embodiment is provided to more completely explain the present invention to those skilled in the art.

In addition, terms such as "... unit", "... unit", "... member" described in the specification mean a unit that processes at least one function or operation, which is hardware, software, or hardware and It can be implemented as a combination of software.

Hereinafter, the embodiment will be described in detail with reference to the accompanying drawings, and in the description with reference to the accompanying drawings, the same or corresponding components are given the same reference numerals, and overlapping descriptions thereof will be omitted.

The present invention relates to a tilting structure of a wheel 300 located in a three-wheeled vehicle or a four-wheeled vehicle having an inverted triangle structure as a small vehicle, and the wheels 300 configured at positions corresponding to each other on both sides of a vehicle body 10 and The present invention relates to a tilting structure of a wheel 300 in which a height of an active wheel 300 is changed so as to reduce a roll generated in the vehicle when the vehicle is tilted in a turning direction.

Hereinafter, as an embodiment of the present invention, a small vehicle is shown for a three-wheeled vehicle having an inverted triangle structure, but all vehicles including wheels 300 at positions corresponding to each other on both sides of the vehicle body 10. can be applied to

1 and 2 show a tilting structure of a wheel 300 applied to a three-wheeled vehicle as an embodiment of the present invention.

In the case of the illustrated three-wheeled vehicle, the two-wheeled wheels 300 positioned at the front end of the vehicle body 10 may be configured at positions corresponding to each other on both sides of the vehicle body 10 . More preferably, the two wheels 300 composed of front wheels are configured at positions corresponding to both sides of the vehicle body 10, and are fastened to the vehicle body 10 through the swing member 110 and the lower arm 130. It is composed so that The inner surface of the wheel 300 adjacent to the vehicle body 10 includes a knuckle 120, and an upper end of the knuckle 120 includes a damping unit 400. Accordingly, both ends of the swing member 110 are fastened to the damping unit 400 so that the knuckle 120, the damping unit 400 and the swing member 110 are integrally driven.

The swing member 110 is connected to the drive shaft of the motor 100 fastened to the vehicle body 10, and is positioned on the left and right sides of the vehicle body 10 to be coupled to the damping unit 400 coupled to the knuckle 120. Accordingly, displacement in the height direction of the wheel 300 fastened to the knuckle 120 is configured to be applied. More preferably, the output of the motor 100 is controlled by the control unit 200, so that power is applied from a battery located in the vehicle and the inclination angle of the swing member 110 is applied. More preferably, the control unit 200 may measure the inclination angle of the vehicle body 10 through a sensor located in the vehicle, and may be configured to control the heights of the wheels 300 located on both sides in response to the measured inclination angle. can

Therefore, the control unit 200 controls the motor 100 to rotate the swing member 110, and the knuckle 120 located on one side of the vehicle body 10 is moved to a predetermined position in the height direction, The knuckle 120 located on the other side is configured to move oppositely by a height corresponding to the movement of the knuckle 120 located on one side. More preferably, the motor 100 may be driven to move the height of the knuckle 120 adjacent to the inclined position of the vehicle body 10 upward and to move the height above the knuckle 120 on the other side downward.

As such, the control unit 200 interlocks with the gyro sensor located on the vehicle body 10 during turning of the vehicle to measure the inclination angle of the vehicle body 10 and to offset the centrifugal force (roll) generated according to the turning of the vehicle body 10. It is configured to control the height of the wheels 300 located on the left and right sides. The control unit 200 is configured to measure the angle of the vehicle body 10 inclined to one side and to apply the driving force of the motor 100 to control the height of the wheel 300 located on the inclined side.

In summary, the present invention determines the angle formed by the vehicle body 10 based on the height direction of the vehicle when the vehicle turns, and if the left and right inclination angles of the vehicle body 10 are tilted beyond a set value, the control unit 200 controls the vehicle The motor 100 is controlled to raise the height of the wheel 300 located on the inclined side. Therefore, as the swing member 110 rotates with respect to the central axis coupled to the motor 100, the height of the wheel 300 located on one side increases and the height of the wheel 300 located on the other side decreases at the same time. do.

Alternatively, the control unit 200 measures the turning input of the vehicle and controls the motor 100 to raise the height of the wheel 300 located in the turning direction according to the turning input value.

The motor 100 may be fixed to the vehicle body, and is configured to offset impacts in the height direction applied to the wheels 300 through damping units 400 fastened to both ends of the swing member 110, respectively.

Furthermore, when displacement of the wheel 300 in the height direction is applied, shock is absorbed through the damping unit 400 and simultaneously the swing member 110 is moved in the height direction to reduce the shock applied to the motor 100 and the vehicle body. is configured to

That is, when at least one wheel 300 among the wheels 300 located on both sides moves in the vertical direction, the damping unit 400 absorbs the shock applied to the motor 100 .

Figure 3 shows a front view of the tilting structure of the wheel 300 of the present invention.

As shown, the swing member 110 extends along both sides of the motor 100 fixed to the vehicle body 10 . It includes a damping unit 400 located between the swing member 110 and the knuckle 120, and the wheel 300 is fastened to the outside of the knuckle 120.

The lower end of the knuckle 120 is configured to fasten the lower arm 130 coupled to the vehicle body. Accordingly, when the knuckle 120 moves in the vertical direction due to an impact applied to the wheel 300, the lower arm 130 and the damping unit 300 are configured to absorb displacement and impact in the height direction.

The control unit 200 is configured to determine the inclination direction of the vehicle body or the driver's steering input, and to apply current to the motor 100. The adjacent wheel 300 is controlled to move in the height direction.

4 shows a simplified schematic diagram of a tilting structure of a wheel 300 according to an embodiment of the present invention.

Based on the vehicle body 10, the motor 100 is configured to be fixed to the vehicle body 10 and includes swing members 110 extending to both ends of the motor 100. More preferably, the central axis of the swing member 110 is configured to be positioned coaxially with the rotational axis of the motor 100 .

Both ends of the swing member 110 include damping units 400 positioned between the swing member 110 and the knuckle 120 . The damping unit 400 is configured to absorb shock caused by movement of the knuckle 120 coupled to the wheel 300 in the height direction.

In addition, the lower arm 130 is configured such that one end is fastened to the lower end of the knuckle 120 and the other end is fastened to the lower surface of the vehicle body 10 . The lower arm 130 and the damping unit 400 are configured to support the movement of the knuckle 120 in the vertical direction and to transmit shocks introduced from each wheel to the vehicle body.

The controller 200 can determine the degree of inclination of the vehicle body, and is configured to rotate the swing member 110 by applying driving force of the motor 100 . When the swing member 110 is rotated, the damping unit 400 fastened to both sides of the swing member 110 moves in the height direction integrally, and the knuckle 120 and the wheel 300 fastened to the ends of the damping unit 400 It is configured to move in the height direction of the vehicle body 10 in conjunction with each other.

More preferably, the control unit 200 controls the motor 100 to increase the height of the wheel 300 at a position adjacent to the direction to turn in response to the user's turning input or the inclination of the vehicle body. The height of the wheel 300 positioned far from the wheel 300 is controlled to be lowered.

In summary, the control unit 200 is configured to measure the inclination of the vehicle body 10 or receive a turning direction, and apply power to the motor 100 when it is determined that the vehicle enters a turning environment. Through this, the height of the wheel 300 on one side of the vehicle body 10 is inclined upward, thereby increasing the turning stability of the vehicle and reducing the turning radius during turning.

The above detailed description is illustrative of the present invention. In addition, the foregoing is intended to illustrate and describe preferred embodiments of the present invention, and the present invention can be used in various other combinations, modifications, and environments. That is, changes or modifications are possible within the scope of the concept of the invention disclosed in this specification, within the scope equivalent to the disclosed contents and / or within the scope of skill or knowledge in the art. The described embodiment describes the best state for implementing the technical idea of the present invention, and various changes required in specific application fields and uses of the present invention are also possible. Therefore, the above detailed description of the invention is not intended to limit the invention to the disclosed embodiments. Also, the appended claims should be construed to cover other embodiments as well.

10: body
100: motor
110: swing member
120: Knuckle
130: lower arm
200: control unit
300: wheel
400: damping unit

Claims (4)

a body constituting a vehicle;
Knuckles fastened to each wheel located on both sides of the vehicle body;
Damper units each fastened to the knuckles positioned on the both sides;
Swing members to which each damper unit is fastened to both ends;
a motor coupled to the swing member and having both ends controlling a position of the wheel in a height direction;
a lower arm having one end fastened to the lower end of the knuckle and the other end fastened to the vehicle body; and
and a control unit configured to apply a rotational force of the motor in response to turning of the vehicle and apply an inclination of the swing member.
According to claim 1,
The control unit is configured to control the rotation angle of the swing member so as to perform the height direction movement integrally with the wheels located on both sides of the motor as the center.
According to claim 1,
The controller determines the inclination angle of the vehicle body and controls the motor to increase the height of the wheel on one side of the inclination in response to the inclination angle of the vehicle.
According to claim 2,
When one end of the swing member is moved in the height direction of the vehicle, the other end of the swing member is configured to move in a direction opposite to the moving direction of one end of the swing member.

Images