KR101677880B1 - Automatic clutch system having link type structure for fuel reduction - Google Patents

Abstract

A link type automatic clutch system for fuel reduction, according to the present invention, comprises: a frame (10); a pneumonic actuator (20) which is coupled on the frame (10) to be able to adjust a slope; a displacement sensor unit (30) which is coupled on the pneumonic actuator (20) to be able to connect; a slide unit (40) which is movable to the front and the back along with the operation of the pneumonic actuator (20); a transmission connection unit (50) which is coupled on the slide unit (40) by means of an upper end thereof, to be able to slide, and is coupled on the frame (10) to be able to do a pivot movement; a link unit (60) which is coupled on the slide unit (40) by means of a lower end thereof and is connected to the transmission connection unit (50) to be able to do a pivot movement; and a pedal unit (70) which is coupled to be able to do a pivot movement on the link unit (60). A clutch can be operated and a gear can be shifted selectively through an automatic mode for performing control by means of the pneumonic actuator (20) using a control unit or through a manual mode by means of the pedal unit (70) by a driver.

Description

BACKGROUND OF THE INVENTION 1. Field of the Invention [0001] The present invention relates to a link type fuel cut-

The present invention relates to a link-type fuel-reduction type automatic clutch system, and more particularly, to a link type fuel cut-off type automatic clutch system which is capable of selectively operating a clutch and a gear shift in an automatic mode for controlling the operation of the gear- To a link type fuel reduction type automatic clutch technology having a shift mechanism used.

The clutch means a device that can easily and quickly connect and disconnect a pair of concentric rotation shafts. This normally causes the machine to start or stop between the prime mover and the input shaft that is transmitted to the machine, and allows the engine to run in a no-load condition as in an automobile.

The clutch used in a commercial vehicle performs a power transmission function that transmits the rotational force of the engine to the transmission and a power shutoff function that temporarily cuts off the power flow between the engine and the transmission whenever necessary and enables a smooth but vibration- , As well as protecting the engine and powertrain from overload, as well as reducing the rotational vibration of the engine together with the flywheel.

Generally, the clutch of the vehicle manual transmission is converted into the shift mode by disengaging the power by bringing the clutch disc into close contact with the flywheel by the pressure plate to transmit the power, and disengaging the clutch disc from the flywheel. Therefore, when the driver depresses the clutch pedal when attempting the shift, the spring force is transmitted to the actuation fork to release the clutch by operating the clutch release bearing.

Particularly, in the case of a clutch used for an automatic manual transmission or a dual clutch transmission, the operator operates the clutch automatically by operating the operating fork through an electronic actuator using a motor as a drive source, So that accurate and convenient shift operation can be realized without necessity.

On the other hand, when an automatic transmission in which a shift is automatically performed is installed, it is advantageous during operation and superior in ride comfort. However, the initial purchase cost is increased and the fuel consumption is increased by 20 to 30% .

In addition, in the case of an automatic transmission, an electronic operation is performed on the basis of a basic operation. In the event of a failure during operation, it is possible to perform a dangerous situation in which shift control is not performed during operation.

As a conventional literature suggesting a clutch actuator using a quadruple link, refer to Korean Patent No. 10-1191463. The above document discloses an electric clutch in which the clutch of a vehicle can be operated without an operation by a driver, thereby improving the operational convenience. In the electric clutch, the operation fork, which directly operates the clutch, Disclosed is a technique for smoothly releasing a clutch even when an operation is stopped, thereby preventing a large accident or a failure in advance.

On the other hand, the document does not disclose a mechanical structure capable of switching from the automatic mode to the manual mode.

(Patent Document 1) KR10-1191463 B

SUMMARY OF THE INVENTION The present invention has been made in view of the above problems, and it is an object of the present invention to provide an automatic transmission, which is capable of selectively operating a clutch and a gear shift through an actuator, It is an object to provide a link type fuel reduction type automatic clutch technology having a shift mechanism.

According to an aspect of the present invention, there is provided a link type fuel reduction type automatic clutch system comprising: a frame; A pneumatic actuator (20) slidably coupled on the frame (10); A displacement sensor unit (30) interlockably coupled to the pneumatic actuator (20); A slide part (40) movable forward and backward according to the operation of the pneumatic actuator (20); A mission connection portion 50 slidably coupled to the slide portion 40 at an upper end thereof and pivotally coupled to the frame 10; A link part (60) slidably coupled at the lower end of the slide part (40) and pivotally connected to the mission connection part (50); And a pedal portion (70) pivotally coupled to the link portion (60), wherein the automatic mode is controlled through the pneumatic actuator (20) through a control portion, or the pedal portion 70 to selectively perform clutch operation and gear shifting.

And a rotation mount portion 80 disposed between the pneumatic actuator 20 and the frame 10 such that the rotation mount portion 80 can adjust the tilt angle of the pneumatic actuator 20. [ And is positionally changeable along the longitudinal direction of the pneumatic actuator 20.

The displacement sensor unit 30 includes a displacement sensor 32 coupled to the displacement sensor 32 so as to be pulled out along the inside and outside thereof and a sensor connecting bar 32 connecting the displacement sensor 32 and the actuator rod 22 of the pneumatic actuator 20. [ Wherein the pneumatic actuator includes a plurality of pneumatic actuators and a plurality of pneumatic actuators and a plurality of pneumatic actuators and a plurality of pneumatic actuators, And the displacement sensor 32 connected through the sensor connection bar 33 and the sensor 40 are integrally moved forward.

The link portion 60 includes a slide connection link 61 having a lower end coupled to a slide bar 52 that moves along a slide groove 41 formed in the slide portion 40, A link rotation shaft 63 rotatably disposed between the slide connection link 61 and the pedal connection link 62, and a slide connection link 61 that is rotatably disposed between the slide connection link 61 and the pedal connection link 62. The pedal connection link 62, And a variable link 62 that constitutes a link.

As described above, the link type fuel reduction type automatic clutch system according to the present invention can be selectively operated in an automatic mode in which the operation of operating the clutch and the gear shift is controlled through the actuator, or a manual mode in which the driver operates the clutch pedal And has a shift mechanism using a link structure.

According to the present invention, when an unexpected electronic system failure occurs while maintaining the automatic clutch plate manipulation function that is basically controlled through the pneumatic actuator, the present invention can prevent the transmission operation from being interrupted while the driver operates the clutch pedal manually Thereby providing an environment that can be continuously performed.

The present invention reduces the size and operation error of a device by using a contact or non-contact type displacement sensor using a magnetic force body in the process of adjusting clutch clearance, and adjusts the actuator operation using a plurality of solenoid valves, To enable precise position control of the pneumatic cylinder operating the clutch, thereby enabling fuel reduction and carbon generation reduction due to RPM reduction.

BRIEF DESCRIPTION OF DRAWINGS FIG. 1 shows the overall configuration of a link-type fuel-reduction type automatic clutch system according to the present invention.
2 is a view showing a process of manually operating a clutch pedal constituting the link type fuel reduction type automatic clutch system of the present invention.
3 is a view showing a process of automatically controlling the pneumatic actuator constituting the link type fuel reduction type automatic clutch system of the present invention.

Hereinafter, embodiments of the present invention will be described in detail with reference to the accompanying drawings. It should be understood, however, that the invention is not limited to the disclosed embodiments, but is capable of other various forms of implementation, and that these embodiments are provided so that this disclosure will be thorough and complete, It is provided to let you know completely. Wherein like reference numerals refer to like elements throughout.

It should be noted that, in adding reference numerals to the constituent elements of the drawings, the same constituent elements are denoted by the same reference symbols as possible even if they are shown in different drawings. In the following description of the present invention, a detailed description of known functions and configurations incorporated herein will be omitted when it may make the subject matter of the present invention rather unclear.

In describing the components of the present invention, terms such as first, second, A, B, (a), and (b) may be used. These terms are intended to distinguish the constituent elements from other constituent elements, and the terms do not limit the nature, order or order of the constituent elements. When a component is described as being "connected", "coupled", or "connected" to another component, the component may be directly connected or connected to the other component, Quot; may be "connected," "coupled," or "connected. &Quot;

Hereinafter, a link type fuel reduction type automatic clutch system according to the present invention will be described with reference to Figs.

The present invention can utilize an automatic mode for controlling the operation of the clutch and the gear shift through a pneumatic actuator or a manual mode for operating the clutch pedal of the driver. That is, a clutch operation mechanism using a link structure is provided so as to be selectively performed in an automatic mode or a manual mode.

The link-type fuel-reduction type automatic clutch system 100 includes a frame 10, a pneumatic actuator 20 that is slidably coupled to the frame 10, a displacement sensor unit 20 that is operably coupled to the pneumatic actuator 20, A slide portion 40 which is movable forward and backward according to the operation of the pneumatic actuator 20; a mission connection portion 50 which is intermittently coupled to the transmission in a state in which the upper end thereof is slidably engaged on the slide portion 40; A link portion 60 pivotably connected to the mission connection portion 50 so that the lower end of the slide portion 40 is slidably engaged with the slide portion 40 and a pedal portion pivotally connected to the link portion 60 70 and a rotary mount portion 80 that is positionally arranged between the pneumatic actuator 20 and the frame 10. [

The frame 10 includes a base frame 11 and an actuator frame 13 arranged to support the rotation mount portion 80 on the base frame 11. The frame 10 may correspond to a part of the vehicle body.

The pneumatic actuator 20 is automatically controlled in operation in accordance with a preset programmed state while being connected to a control unit (not shown). That is, when the shift is performed in the vehicle running state, the half-clutch point is carefully sensed and processed so as to minimize the shift shock.

The pneumatic actuator 20 includes an actuator rod 22 and an elastic rod 22 which are removably coupled along the inside and the outside thereof and an elastic member 23 which is coupled on one side of the pneumatic actuator 20. The actuator rod 22 can be pulled out or drawn forward according to the operation of the pneumatic actuator 20, thereby making the entire slide portion 40 movable forward and backward.

The elastic member 23 functions to prevent external dust or the like from flowing into the pneumatic actuator 20 while protecting the connection between the actuator rod 22 and the actuator housing when the actuator rod 22 moves.

The displacement sensor unit 30 includes a displacement sensor 32 that can be pulled out along the inside and outside of the displacement sensor unit 30 and a sensor connection bar 33 that connects the displacement sensor 32 and the actuator rod 22.

As the solenoid valve module is controlled according to the present invention, the linear motion of the actuator rod 22 is performed by adjusting the pneumatic pressure supplied to the pneumatic actuator 20. The linear movement distance of the actuator rod 22 is directly measured, Control. The prior art discloses a technique of roughly controlling the position by sensing only the position of the starting point and the ending point of the actuator rod 22 that moves linearly. However, this is because the response performance is very unstable to adjust the clearance of the fine clutch, In the case where the vehicle can not be precisely controlled under the half-clutch state, there is a problem in that stable shifting of the vehicle is not easy through the process of rapidly transmitting power,

The present invention is advantageous in that the displacement sensor 32 is used as a linear distance measuring sensor such as a magnetic sensor to perform position control, so that the linear value is accurate and the risk of abrasion is reduced by operating in a contact or non-contact manner.

That is, the actuator rod 22 performs translational motion in the forward and backward directions according to the operation of the pneumatic actuator 20. The displacement displacement of the displacement sensor 32 connected to the actuator rod 22 via the sensor connecting bar 33 is By accurately sensing, clutch operation can be controlled in real time.

The displacement sensor 32 of the displacement sensor unit 30 recognizes the position of the actuator rod 22 in real time during the movement of the actuator rod 22. [ That is, it senses the drawn distance of the actuator rod 22 in the pneumatic actuator 20 in a contact or non-contact manner.

In the present invention, when the clutch pedal 72 of the pedal portion 70 is abruptly released, quick operation is possible up to the half-clutch state, and minute power transmission is enabled from the half-clutch state. That is, the actuator rod 22 is allowed to move up to a point corresponding to the half-clutch, and thereafter, the actuator rod 22 can be moved over a plurality of stages through the distance detection of the displacement sensor 32 The vibration of the vehicle body and the unstable state of starting due to the rapid power transmission of the clutch can be solved.

The slide part (40) has a slide groove (41) formed therein with a long length. On the slide groove 41, a slide bar 52 to which the mission connection portion 50 and the link portion 60 are coupled is movably disposed. That is, the slide bar 52 is repeatedly moved along the slide groove 41 in the forward and backward directions while the slide bar 52 is rotatably coupled to both the mission connection portion 50 and the link portion 60.

The mission connection portion 50 is coupled to the lower connection side of the transmission connection shaft 51 and the transmission connection shaft 51 is pivotally coupled to the fixed block 12 disposed on the base frame 11. Here, for example, on the mission connection shaft 51, a transmission capable of shifting can be combined.

The link portion 60 includes a slide connection link 61 having a lower end coupled to the slide bar 52 in the slide groove 41, a pedal connection link 62 rotatably coupled on the slide connection link 61, A link rotation shaft 63 rotatably disposed between the slide connection link 61 and the pedal connection link 62 and a variable link 62 constituting the slide connection link 61. [ The connection method of the variable link 62 includes a chain or a wire or other connection method.

The pedal portion 70 includes a clutch link 71 rotatably engaged with the upper end of the pedal connecting link 62, a clutch pedal 72 coupled to the lower end of the clutch link 71, And a clutch shaft (73) rotatably disposed between the link (62).

The rotary mounting portion 80 is disposed so as to be positionally variable between the pneumatic actuator 20 and the actuator frame 13. That is, the rotary mounting portion 80 adjusts the tilted angle of the pneumatic actuator 20 and is positionally changeably coupled along the longitudinal direction of the pneumatic actuator 20. [ The tilt angle of the pneumatic actuator 20 is adjusted around the rotation axis 81 of the rotary mounting portion 80.

Referring to FIG. 2, there is shown a process of manually depressing a clutch pedal of a link type fuel reduction type automatic clutch system according to the present invention. Here, since the pneumatic actuator 20 is not operated, the shift is made manually. On the other hand, the pneumatic actuator 20 maintains a state in which the tilt adjustment can be performed by the rotary mounting portion 80.

When the driver depresses the clutch pedal 72, the pedal connecting link 62 fixedly connected to the clutch link 71 is rotated through the clutch shaft 73. [ The slide connection link 61 also moves forward through the link rotation shaft 63 in accordance with the rotation of the pedal connection link 62. [

As the slide bar 52 coupled to the lower end of the slide connection link 61 slides forward along the slide groove 41 in the slide portion 40, the mission connection portion 50 moves along the axis of the mission connection shaft 51 Thereby enabling shifting.

On the other hand, when the driver releases the clutch pedal, it is possible to recover to the initial state by using the restoring force of the elastic body.

Referring to FIG. 3, a process of automatically controlling the pneumatic actuator constituting the link type fuel reduction type automatic clutch system of the present invention will be described. That is, the shift is automatically performed by disconnecting the clutch plate by operating the pneumatic actuator 20 through the control unit without operating the clutch pedal by the driver.

The pneumatic actuator 20 is actuated via the control unit to cause the actuator rod 22 to be drawn forward from the pneumatic actuator 20. [ The slide unit 40 coupled to the front of the actuator rod 22 and the displacement sensor 32 connected to the sensor connection bar 33 move integrally forward.

As the slide part 40 moves forward, the slide bar 52 that is seated inside the slide groove 41 also moves forward. Here, the mission connection unit 50 coupled to the slide bar 52 is also integrally driven at the same time.

Meanwhile, in the case of the slide connection link 61 connected to the slide bar 52, the rotation of the pedal connection link 62 of the link portion 60 is prevented through the process of deforming and folding the variable link 62 Loses. Thus, the clutch pedal 72 is prevented from being moved by blocking the process of transmitting power to the clutch link 71 through the clutch shaft 73. Here, the connecting method of the variable link 62 may be other connecting methods such as a chain or a wire.

As described above, according to the present invention, when a failure of an unexpected electronic system occurs while maintaining an automatic clutch plate operating function that is basically controlled through a pneumatic actuator, the operation of the transmission is continuously As shown in FIG.

It is to be understood that the terms "comprises", "comprising", or "having" as used in the foregoing description mean that the constituent element can be implanted unless specifically stated to the contrary, But should be construed as further including other elements. All terms, including technical and scientific terms, have the same meaning as commonly understood by one of ordinary skill in the art to which this invention belongs, unless otherwise defined. Commonly used terms, such as predefined terms, should be interpreted to be consistent with the contextual meanings of the related art, and are not to be construed as ideal or overly formal, unless expressly defined to the contrary.

The foregoing description is merely illustrative of the technical idea of the present invention, and various changes and modifications may be made by those skilled in the art without departing from the essential characteristics of the present invention. Therefore, the embodiments disclosed in the present invention are intended to illustrate rather than limit the scope of the present invention, and the scope of the technical idea of the present invention is not limited by these embodiments. The scope of protection of the present invention should be construed according to the following claims, and all technical ideas within the scope of equivalents should be construed as falling within the scope of the present invention.

10: frame
20: Pneumatic actuator
30: displacement sensor unit
40:
50: mission connection
60: Link portion
70: Pedal part
80:
100: Link type fuel reduction type automatic clutch system

Claims (4)

A frame 10;
A pneumatic actuator (20) slidably coupled on the frame (10);
A displacement sensor unit (30) interlockably coupled to the pneumatic actuator (20);
A slide part (40) movable forward and backward according to the operation of the pneumatic actuator (20);
A mission connection portion 50 slidably coupled to the slide portion 40 at an upper end thereof and pivotally coupled to the frame 10;
A link part (60) slidably coupled at the lower end of the slide part (40) and pivotally connected to the mission connection part (50); And
And a pedal portion (70) pivotally coupled to the link portion (60)
Which is capable of selectively performing a clutch operation and a gear shift by using an automatic mode for controlling through the pneumatic actuator 20 via a control unit or by using a manual mode by the driver through the pedal unit 70,
Link type fuel reduction type automatic clutch system.
The method according to claim 1,
(80) arranged to be positionally displaceable between the pneumatic actuator (20) and the frame (10)
The rotary mounting portion 80 is configured to allow the pneumatic actuator 20 to adjust the inclination angle of the pneumatic actuator 20 and to change the position of the pneumatic actuator 20 along the longitudinal direction of the pneumatic actuator 20. [
Link type fuel reduction type automatic clutch system.
The method according to claim 1,
The displacement sensor unit 30 includes a displacement sensor 32 coupled to the displacement sensor 32 so as to be pulled out along the inside and outside thereof and a sensor connecting bar 32 connecting the displacement sensor 32 and the actuator rod 22 of the pneumatic actuator 20. [ (33)
The slide portion 40 coupled to the front side of the actuator rod 22 and the sensor portion 22 coupled to the front side of the actuator rod 22 in the process of operating the pneumatic actuator 20 to pull the actuator rod 22 forward from the pneumatic actuator 20, The displacement sensor 32 connected through the connecting bar 33 is a structure that moves integrally forward.
Link type fuel reduction type automatic clutch system.
The method according to claim 1,
The link portion (60)
A slide connection link 61 having a lower end coupled to the slide bar 52 that moves along the slide groove 41 formed in the slide unit 40,
A pedal connection link 62 rotatably coupled on the slide connection link 61,
A link rotation shaft 63 rotatably disposed between the slide connection link 61 and the pedal connection link 62,
And a variable link (62) constituting the slide connection link (61)
Link type fuel reduction type automatic clutch system.

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