KR101801057B1 - The behavior experiment equipment for clutch engaged in dual clutch transmission having variable flywheel - Google Patents

Abstract

BACKGROUND OF THE INVENTION 1. Field of the Invention [0001] The present invention relates to a clutch engagement behavior test apparatus to which a variable type flywheel is applied. The present invention relates to a power unit having a power unit for generating a rotational force at a rotational speed in accordance with a set value, an input plate for rotating in connection with the power unit, An output plate which is moved in the direction of the input plate by the pressure portion to selectively contact the input plate, and a variable flywheel 100. [ The variable flywheel 100 is provided at one side of the input plate so that the variable flywheel 100 can continue to rotate by the inertial force even after the rotational force of the power unit is shut off. Accordingly, since the user can adjust the inertia applied to the experimental apparatus and then measure and compare the torque values under the respective conditions, a variety of experiments can be performed using one apparatus.

Description

BACKGROUND OF THE INVENTION 1. Field of the Invention [0001] The present invention relates to a clutch engagement behavior test apparatus using a variable flywheel,

The present invention relates to an experimental apparatus for observing the behavior of clutch engagement in an automotive dual clutch transmission. More particularly, the present invention relates to an experimental apparatus capable of performing various experiments by applying a flywheel whose physical characteristics such as inertia are variable through assembly and disassembly ≪ / RTI >

In the field of transmission, the dual clutch transmission (hereinafter referred to as 'DCT'), which is combined with the advantages of a manual transmission having excellent fuel economy and sporty driving performance, an advantage of an automatic transmission having a driving convenience and a smooth shifting performance Research is actively being carried out.

The basic structure of the DCT is divided into two clutches and a synchronizer, which is a gear engagement structure. One clutch is connected to the engine and the other clutch is disengaged, and the synchronizer is tightened. Then, the two clutches are released and connected to perform shifting to the next speed change gear. This shift process minimizes the power cut-off interval and improves the acceleration performance. At the same time, it automates the operation of the clutch and the synchronizer with the actuator to enhance the driver's convenience.

In addition, since the DCT clutch uses a friction clutch, the DCT clutch is advantageous as a transmission capable of realizing performance, convenience, and high fuel consumption because it has less power loss and fuel economy than a general automatic transmission using a torque converter. On the other hand, the DCT uses a wet or dry clutch, so precise control is required to prevent power disruptions during transmission.

The operation inside the clutch pack is operated by an odd number gear clutch and an even number gear clutch, and the clutch corresponding to the number of gears during transmission shifts the power to the output shaft through engagement of the input plate and the output plate .

In the course of such a fastening process, the shifting of the manual transmission is reliably distinguished and the shifting is not performed. In the process in which each output plate is engaged with the next step for the sequential shifting as in the automatic transmission, The translation between the clutches or the vibration due to the excitation may occur.

The shudder inside the clutch pack can be connected to the shift shock or the durability deterioration. Therefore, it is an important task in the DCT to minimize the vibration when the clutch is engaged. In order to find the optimal condition for minimizing the vibration, There is a need for a device capable of reproducing and observing the behavior at the time of clutch engagement.

In particular, there is a need for an apparatus that can implement more various experiments while manipulating one device to change physical characteristics without changing the device itself.

Korean Patent Publication No. 10-2009-0126628

It is an object of the present invention to provide an apparatus capable of testing the behavior of a clutch in a dual clutch transmission.

It is another object of the present invention to provide an apparatus capable of varying physical characteristics such as inertia and experimental conditions by operating an experimental apparatus.

According to an aspect of the present invention for achieving the above object, the present invention provides a power generating apparatus including a power section generating a rotational force at a rotational speed corresponding to a set value, an input plate rotating and connected to the power section, A clutch unit disposed between the input plates and selectively transmitting the rotational force of the power unit to the input plate, an output plate that moves in the direction of the input plate by the pressure unit and selectively contacts the input plate, A variable flywheel disposed at one side of the power unit and configured to continuously rotate by an inertial force even after the power of the power unit is cut off, Including the number of revolutions Wherein the variable flywheel includes a center wheel rotated coaxially with the input plate and a weight wheel detachably coupled to at least one side of both sides of the center wheel, And the seat is detachably coupled to both side surfaces of the center wheel, and a seating jig is provided at a lower portion of the center wheel and the weight wheel, and a seating part, in which the weight wheel separated from the center wheel is seated, Respectively.

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At least one of the pair of weight wheels is different in diameter or mass from each other.

The weight wheel is composed of a first weight body and a second weight body separated from each other, and the first weight body and the second weight body are combined to form a single ring-shaped weight wheel.

The first weight body and the second weight body are coupled to each other by an assembly plate across them.

The direction in which the first weight body and the second weight body constituting the first weight wheel of the pair of weight wheels are coupled is determined by the direction in which the first weight body and the second weight body constituting the second weight wheel are coupled, to be.

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The seating part is provided on both sides of the seating jig so as to correspond to the pair of weight wheels, and the seating part is provided with fixing means for selectively pressing the outer surface of the weight wheel.

The clutch coupling behavior test apparatus to which the variable flywheel according to the present invention as described above is applied has the following effects.

According to the present invention, the behavior at the time of clutch engagement in a dual clutch transmission can be experimented. In other words, it is possible to find more precise optimum conditions by actually observing and measuring the behavior characteristics of each condition by using an experimental apparatus instead of the simulation, and it can be utilized for various purposes such as product design and education.

And, the variable flywheel constituting the present invention can change its mass and inertia through assembly and disassembly. Accordingly, since the user can adjust the inertia applied to the experiment device and measure and compare the torque value under each condition, it is possible to perform various experiments using one device.

In particular, since the weight wheel constituting the variable flywheel can be separated from or reassembled from the center wheel without having to separate the entire structure such as the main frame of the experimental apparatus, the experiment can be continued, and the convenience of the experiment is greatly improved.

In addition, any one of the pair of weight wheels constituting the variable flywheel may be composed of two pieces so as to be easily detached from the device, and the other one may be made of one piece to facilitate assembly. Thus, it is possible to improve the convenience of assembly such as wheel alignment and to create more various experimental conditions.

In addition, in the present invention, a seat of a variable flywheel is provided at the bottom of the variable flywheel, and a weight wheel not used therein can be stored, thereby improving the usability of the experimental apparatus.

BRIEF DESCRIPTION OF THE DRAWINGS FIG. 1 is a side view showing an embodiment of a clutch engaging behavior test apparatus to which a variable-type flywheel according to the present invention is applied. FIG.
FIG. 2 is an exploded perspective view of the structure of an embodiment of the present invention shown in FIG. 1; FIG.
3 is a perspective view showing a state in which a pair of weight wheels are fixed to a fixing jig such that a variable flywheel constituting an embodiment of the present invention is disassembled.
Figure 4 is a perspective view of the first weight wheel coupled to the center wheel in Figure 3;
FIG. 5 is a perspective view of the second weight wheel coupled to the center wheel in FIG. 4; FIG.
6 is an exploded perspective view showing another embodiment of a clutch engagement behavior test apparatus to which a variable type flywheel according to the present invention is applied.

Hereinafter, some embodiments of the present invention will be described in detail with reference to exemplary drawings. 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 numerals even though they are shown in different drawings. In the following description of the embodiments of the present invention, a detailed description of known functions and configurations incorporated herein will be omitted when it may make the understanding why the present invention is not intended to be interpreted.

In describing the components of the embodiment 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;

1 to 3, a clutch engaging behavior test apparatus to which a variable type flywheel according to an embodiment of the present invention is applied includes a power section 20, a clutch unit 30, a clutch pack 60, Sensor units (S1, S2, 40), and a variable flywheel (100).

The power unit generates a rotational force of a rotational speed corresponding to the set value. The power unit 20 may include a motor for generating a rotational force, an input unit for receiving a specific rotational speed from the user, and a controller for rotating the motor in accordance with the input value of the motor. The motor may be a general AC motor or a DC motor, or may be a special motor such as a brushless motor, a BLDC motor, or a geared motor. The control unit may control the number of revolutions by changing the voltage value applied to the motor or may control the number of revolutions output through the gear ratio.

The clutch pack (60) has an input plate, an output plate and a pressure portion inside. Although not shown, the input plate is connected to the power unit 20 and rotates. The input plate may have a disk shape, and the input plate may be made of a metal material. And the input plate may be supported by the bearing to minimize friction during rotation.

The clutch unit 30 is disposed between the power unit 20 and the input plate and transmits or blocks the rotational force of the power unit 20 to the input plate. The clutch unit 30 may be a magnetic clutch having two discs corresponding to each other and closely contacting or separating the two discs by an electromagnetic force. The operation of the clutch unit 30 can be controlled by the control unit of the power unit 20. [

Although not shown, the output plate provided in the clutch pack 60 is formed so as to be movable forward and backward with respect to the input plate, and is contacted with or separated from the input plate. Like the input plate, the output plate has a cylindrical shape and can be made of a metal material. The output plate may also be supported by the bearing to minimize friction during rotation. To measure the number of revolutions, teeth may be formed on the outer circumferential surface of the output plate.

The pressure portion applies pressure to the output plate to cause the output plate to contact the input plate. The pressure portion may include a plate-like piston pushing the output plate back and forth with respect to the output plate by pneumatic pressure. The piston on this plate can be moved back and forth by pneumatic pressure. The pressure portion may further include a pneumatic cylinder for applying a force to the plate-shaped piston.

The sensor units S1, S2, and 40 are for measuring various physical characteristics that occur during operation of the experimental apparatus. A load sensor (not shown) built in the clutch pack 60 measures a load applied to the output plate do. The load sensor may be a thin load cell disposed between the pressure portion and the output plate. And the load cell can be one of magnetostrictive, piezoelectric, and strain gait knowledge.

Among the sensor units S1, S2 and 40, the rotation speed sensors S1 and S2 may be formed with teeth on the outer circumferential surface of the input plate or the outer circumferential surface of the shaft connected to the input plate so as to measure the rotational speed. Among the sensor units S1, S2, and 40, the torque sensor 40 measures the torque applied to the input plate. In order to measure the torque, the torque sensor 40 measures the torque by combining the power transmission shaft with the braking device and disseminating the work in the form of heat or electric energy, from the braking amount at that time, and the twist angle or deformation of the power transmission shaft There is a way. Of course, one of the revolution sensor S1 and the torque sensor 40 may be formed in a module form, or either one of them may be installed.

Among the rotation speed sensors, the output rotation speed sensor (S2) measures the rotation speed of the output plate. Teeth may be formed on the outer peripheral surface of the output plate so that the output rotation speed sensor S2 can measure the rotation speed.

Referring to FIGS. 1 and 2, a variable flywheel 100 is provided at a position adjacent to the marking clutch. The variable flywheel 100 is for imparting an inertia force and more precisely the variable flywheel 100 can be rotated by the inertia force by the variable flywheel 100 even after the turning force of the power unit 20 transmitted to the input plate is cut off It can be continuously rotated.

That is, the variable flywheel 100 refers to a resilient vehicle having a large weight and a large rotational inertia, and can be made of a cast iron having a large friction coefficient. Even after disconnecting the connection between the power unit 20 and the input plate by the magnetic clutch 20, the input plate continues to rotate due to the inertial force of the variable flywheel 100. This simulates an environment more similar to the actual running condition of the vehicle . Therefore, a more accurate experiment can be performed through the experimental apparatus of the present invention.

2, the structure of the variable flywheel 100 is shown in detail in an exploded view. As described above, the variable flywheel 100 constituting one embodiment of the present invention is configured in such a manner that a plurality of parts can be disassembled and assembled. The variable flywheel 100 includes a center wheel 120 and weight wheels 140 and 160. The variable weight wheel 120 and the weight wheels 140 and 160 are combined to increase the total weight and inertia of the variable flywheel 100 and to separate the entire weight and inertia. Further, it is possible to generate more various experimental conditions.

In more detail, the variable flywheel 100 includes a center wheel 120 rotated coaxially with the input plate, weight wheels 140 and 160 (not shown) coupled to at least one of the opposite sides of the center wheel 120, ). The center wheel 121 forms a skeleton of the center wheel 121 and a plurality of center assembly holes 123 are formed in the center body 121. The center assembly hole 123 is for assembling between the center wheel 120 and the weight wheels 140 and 160.

A center rib 125 is provided on both sides of the center body 121 and a rotation axis 127 is provided through the center rib 125. The rotation shaft 127 is coaxial with the input plate. The rotation shaft 127 may be connected to the main shaft of the experimental apparatus via a coupler or the like, although not shown. Alternatively, the rotation shaft 127 may be a part of the main shaft.

In this embodiment, the weight wheels 140 and 160 are formed as a pair and are coupled to or disassembled from the opposite sides of the center body 121, respectively. That is, the weight wheels 140 and 160 are formed as a pair, and are detachably coupled to both sides of the center wheel 120. The combined state of the weight wheels 140 and 160 may be seen in FIG. The weight wheels 140 and 160 on the right side will be referred to as a first weight wheel 140 and the left weight wheels 140 and 160 will be referred to as a second weight wheel 160 on the basis of FIG.

Although the first weight wheel 140 and the second weight wheel 160 may have the same size and weight, in the present embodiment, the first weight wheel 140 and the second weight wheel 160 may have different diameters or masses Are formed differently from each other. This is for the purpose of further diversifying the experimental conditions, but it is natural that they should be coupled to the center wheel 120 concentrically about the rotation axis 127.

The first weight wheel 140 will now be described. For reference, in this embodiment, the second weight wheel 160 has the same basic structure as the first weight wheel 140, so that the description of the same parts will be omitted and only the other parts will be described. The first weight wheel 140 is composed of a first weight body 141 and a second weight body 142 separated from each other. The first weight body 141 and the second weight body 142 are combined to form one ring-shaped weight wheel 140, 160. The first weight body 141 and the second weight body 142 are symmetrical to each other and a through hole 141 'is formed at the center thereof. The through hole 141 'corresponds to the center rib 125 of the center wheel 120.

A first wheel assembly hole 143 and a second wheel assembly hole 145 are formed in the first weight wheel 140. The first weight wheel 140 is assembled to the center wheel 120 and the assembly plate 150 to be described later is assembled to the first weight wheel 140, And may be formed through the first weight body 141 and the second weight body 142.

The first weight body 141 and the second weight body 142 are coupled to each other by an assembly plate 150 across them. The assembly plate 150 is coupled to the first weight body 141 and the second weight body 142 in a direction orthogonal to a direction in which the first weight body 141 and the second weight body 142 are coupled, In this embodiment, the assembly plate 150 is also composed of a first plate 151 and a second plate 151 '. However, the direction in which the first plate 151 and the second plate 151 'are coupled is orthogonal to the direction in which the first weight body 141 and the second weight body 142 are assembled. A plurality of plate holes 153 and 155 are formed in the first plate 151 and the second plate 151 'so that the assembly plate 150 can be assembled to the first weight wheel 140.

Since the first weight wheel 140 is composed of the first weight body 141 and the second weight body 142 which are detachable from each other, the first weight wheel 140 is separated from the center wheel 120 It can be separated from the rotating shaft 127 again and replaced. That is, when the first weight wheel 140 is separated into the first weight body 141 and the second weight body 142, the first weight body 141 and the second weight body 142 are separated from each other by the rotation axis 127, so that the first weight wheel 140 having a different diameter or weight can be replaced.

Reference numeral 148 denotes a first fastening member 148 for assembling the first weight wheel 140 to the center wheel 120. Reference numeral 158 denotes a first weight wheel 140 And a second fastening member 158 for fastening the first fastening member 160 to the second fastening member 158. [ Of course, the first fastener 148 and the second fastener 158 may have the same shape and may be used without limitation.

The direction in which the first weight body 141 and the second weight body 142 constituting the first weight wheel 140 of the pair of weight wheels 140 and 160 are coupled is determined by the second weight wheel 160 The first weight body 141 and the second weight body 142 may be perpendicular to each other. This is because the first weight wheel 140 and the second weight wheel 160 are advantageous in centering the whole weight as compared to both assembled in the same direction, and as a result, it is easy to finely adjust the wheel alignment and the like.

In this embodiment, the weight wheels 140 and 160 are provided on both sides of the center wheel 120, but are not limited thereto. For example, only one of the weight wheels 140 and 160 may be provided, or two or more weight wheels may be installed on either side of the center wheel 120.

A seating jig 110 is provided below the center wheel 120 and the weight wheels 140 and 160. The seating jig 110 is provided on the main frame 10 corresponding to a lower portion of the center wheel 120 and the weight wheels 140 and 160. The seating jig 110 is provided with a seating part 112 or 112 'on which the weight wheel 140 or 160 separated from the center wheel 120 is seated. The first weight wheel 140 or the second weight wheel 160, Can be easily stored even if it is separated from the center wheel 120 and removed from the seating parts 112 and 112 'at the time of reassembly and then assembled to the center wheel 120 again.

The seating portions 112 and 112 'are provided on both sides of the seating jig 110 so as to correspond to the pair of weight wheels 140 and 160 and the outer surfaces of the weight wheels 140 and 160 are provided in the seating portions 112 and 112' And a fixing means 118 for pressing and fixing by pressing. In this embodiment, the fixing means 118 is composed of bolts, and the width of the seating portions 112 and 112 'is varied according to the degree of tightening of the fixing means 118, so that the weight wheels 140 and 160 can be fixed.

On the other hand, Fig. 6 shows another embodiment of the present invention. As shown in the figure, only the first weight wheel 140 among the weight wheels 140 and 260 is composed of the first weight body 141 and the second weight body 142, and the second weight wheel 260, It can be composed of one ring-shaped part. Of course, in this case, the assembly plate may be unnecessary, and the work of adjusting the wheel alignment by assembling to the center wheel 120 may be made easier. However, in the embodiment of FIG. 6, since the second weight wheel 260 is a single part, it can not be removed until the rotating shaft 127 is completely separated from the apparatus.

Hereinafter, the process of using the experimental apparatus according to the present invention will be described.

First, when the user inputs a desired number of revolutions, the controller rotates the motor. When the motor is driven, the input plate connected to the driving unit also rotates together. At this time, when the driving unit and the input plate are disconnected by controlling the clutch unit 30, the input plate continues to rotate due to the inertial force.

Next, pressure is applied to the output plate with the pressure portion so that the output plate contacts the input plate. At this time, a load cell disposed between the pressure portion and the output plate is used to adjust the working load. It is also possible to observe the behavior characteristics by the operating load.

Then, the number of rotations of the input plate and the output plate and the torque of the input plate are measured. When the output plate is brought into contact with the rotating input plate, the output plate is also rotated together with the frictional force, the number of rotations of the input plate gradually decreases, and the number of rotations of the output plate gradually increases. The slip phenomenon occurs between the two objects due to the difference in the number of revolutions between the input plate and the output plate until the number of revolutions of the input plate and the output plate becomes equal. In this process, the torque is increased.

In this manner, it is possible to observe changes in the number of revolutions of the input plate and the output plate, changes in torque, and the like when the clutch is engaged in the vehicle. This makes it possible to find the optimum conditions for minimizing vibration during clutch engagement.

On the other hand, a variable flywheel 100 is connected to one side of the input plate so as to be continuously rotated by an inertial force even after the rotational force of the power unit 20 is cut off. The variable flywheel 100 is a resilient vehicle having a heavy weight and a large rotational inertia, and is rotated continuously by an inertia force, thereby realizing an environment similar to a condition at the time of actual vehicle operation.

As shown in FIG. 3, the weight wheel 140, 160 constituting the variable flywheel 100 is fixed to the fixed jig and the experiment is performed in a state where only the center wheel 120 is rotatable to obtain an experimental value such as a torque value, 4, the second weight wheel 160 is coupled to the center wheel 120, and experimental values such as the torque value can be obtained and compared.

5, the user may engage the remaining first weight wheel 140 with the center wheel 120 so as to maximize the inertia and obtain experimental values such as torque values and compare them.

That is, since the user can adjust the inertia applied to the experimental apparatus and measure and compare the torque values under the respective conditions, it is possible to perform a variety of experiments using one apparatus, The weight wheels 140 and 160 can be stored, which makes the use of the experiment apparatus easy.

While the present invention has been described in connection with what is presently considered to be the most practical and preferred embodiments, it is to be understood that the invention is not limited to the disclosed embodiments. That is, within the scope of the present invention, all of the components may be selectively coupled to one or more of them. Furthermore, the terms "comprises", "comprising", or "having" described above mean that a component can be implanted unless otherwise specifically stated, But should be construed as 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 not intended to limit the scope of the present invention but to limit the scope of the technical idea of the present invention. 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: Main frame 20: Power unit
30: clutch unit 60: clutch pack
100: Variable flywheel 110: Fixing jig
120: center wheel 140, 160: weight wheel
150, 170: Assembly plate

Claims (9)

A power unit for generating a rotational force of a rotational speed corresponding to a set value, an input plate connected to the power unit and rotating,
A clutch unit disposed between the power unit and the input plate for selectively transmitting the rotational force of the power unit to the input plate;
An output plate that moves in the direction of the input plate by the pressure portion and selectively contacts the input plate,
A variable flywheel provided at one side of the input plate so as to be continuously rotated by an inertial force even after the rotational force of the power unit is cut off,
And a sensor unit for measuring a physical property including the number of revolutions of at least one of the input plate and the output plate,
The variable flywheel
A center wheel rotated coaxially with the input plate,
And a weight wheel detachably coupled to at least one side of both sides of the center wheel,
The weight wheels are coupled to both sides of the center wheel in a detachable manner,
Wherein the center wheel and the weight wheel are provided with a seating jig, and the seating jig is provided with a seating portion on which the weight wheel separated from the center wheel is seated, to which a variable flywheel is applied.
delete delete The apparatus according to claim 1, wherein the pair of weight wheels are made of a variable flywheel having at least one of a diameter and a mass different from each other.
[2] The apparatus of claim 1, wherein the weight wheel is composed of a first weight body and a second weight body separated from each other, and the first weight body and the second weight body are combined to form a ring- Clutch fastening behavior test system with flywheel.
The apparatus of claim 5, wherein the first weight body and the second weight body are coupled to each other by an assembly plate crossing the first weight body and the second weight body.
[7] The method of claim 6, wherein a direction in which the first weight body and the second weight body constituting the first weight wheel of the pair of weight wheels are combined is a first weight body and a second weight body constituting the second weight wheel, And a clutch flywheel attached to the flywheel.
delete The variable flywheel as claimed in claim 1, wherein the seat portion is provided on both sides of the seating jig so as to correspond to the pair of weight wheels, and the seating portion is provided with fixing means for selectively pressing and fixing the outer surface of the weight wheel. Applied clutch engagement behavior experiment device.

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