KR101047656B1 - Synchronous Actuator Structure of Wet Double Clutch Transmission - Google Patents

Synchronous Actuator Structure of Wet Double Clutch Transmission Download PDF

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KR101047656B1
KR101047656B1 KR1020040096443A KR20040096443A KR101047656B1 KR 101047656 B1 KR101047656 B1 KR 101047656B1 KR 1020040096443 A KR1020040096443 A KR 1020040096443A KR 20040096443 A KR20040096443 A KR 20040096443A KR 101047656 B1 KR101047656 B1 KR 101047656B1
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South Korea
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clutch transmission
double clutch
dct
wet double
air
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KR1020040096443A
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Korean (ko)
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KR20060057334A (en
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김인찬
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현대자동차주식회사
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    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16H—GEARING
    • F16H61/00—Control functions within control units of change-speed- or reversing-gearings for conveying rotary motion ; Control of exclusively fluid gearing, friction gearing, gearings with endless flexible members or other particular types of gearing
    • F16H61/26—Generation or transmission of movements for final actuating mechanisms
    • F16H61/28—Generation or transmission of movements for final actuating mechanisms with at least one movement of the final actuating mechanism being caused by a non-mechanical force, e.g. power-assisted
    • F16H61/2807—Generation or transmission of movements for final actuating mechanisms with at least one movement of the final actuating mechanism being caused by a non-mechanical force, e.g. power-assisted using electric control signals for shift actuators, e.g. electro-hydraulic control therefor
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16H—GEARING
    • F16H61/00—Control functions within control units of change-speed- or reversing-gearings for conveying rotary motion ; Control of exclusively fluid gearing, friction gearing, gearings with endless flexible members or other particular types of gearing
    • F16H61/26—Generation or transmission of movements for final actuating mechanisms
    • F16H61/28—Generation or transmission of movements for final actuating mechanisms with at least one movement of the final actuating mechanism being caused by a non-mechanical force, e.g. power-assisted
    • F16H2061/2823—Controlling actuator force way characteristic, i.e. controlling force or movement depending on the actuator position, e.g. for adapting force to synchronisation and engagement of gear clutch

Abstract

본 발명은 습식 더블클러치 트랜스미션(DCT)의 싱크로 액추에이터 구조에 관한 것이다. 이같은 본 발명은 싱크로 액추에이터 케이스의 양쪽 유로상에 체크밸브를 설치 구성함으로써, 습식 더블클러치 트랜스미션(DCT) 싱크로 액추에이터의 유압실로부터 밸브 바디 사이에 공기층이 갇히지 않도록 하여 쉬프트 레일을 항상 일정한 속도로 유지시켜 더블클러치 트랜스미션(DCT)의 변속 성능을 향상시킬 수 있도록 하는 습식 더블클러치 트랜스미션(DCT)의 싱크로 액추에이터 구조를 제공한다.
The present invention relates to a synchro actuator structure of a wet double clutch transmission (DCT). In the present invention, by installing check valves on both flow paths of the synchro actuator case, the air rail is not trapped between the valve body from the hydraulic chamber of the wet double clutch transmission (DCT) synchro actuator and the shift rail is always maintained at a constant speed. Synchronous actuator structure of wet double clutch transmission (DCT) is provided to improve the shift performance of double clutch transmission (DCT).

싱크로 액추에이터, 체크밸브, 리턴스프링, 유압실, 쉬프트 레일Synchro actuators, check valves, return springs, hydraulic chambers, shift rails

Description

습식 더블 클러치 트랜스미션의 싱크로 액추에이터 구조{Synchro actuator structure of a wet DCT} Synchro actuator structure of a wet double clutch transmission             

도 1은 종래 습식 더블클러치 트랜스미션(DCT)의 싱크로 액추에이터 구조를 보인 평면도.1 is a plan view showing a synchro actuator structure of a conventional wet double clutch transmission (DCT).

도 2는 본 발명의 일실시예로 습식 더블클러치 트랜스미션(DCT)의 싱크로 액추에이터에 체크밸브가 적용된 상태의 측단면 개략도.Figure 2 is a side cross-sectional schematic view of a check valve applied to the synchro actuator of the wet double clutch transmission (DCT) in one embodiment of the present invention.

<도면의 주요부분에 대한 부호의 설명><Description of the symbols for the main parts of the drawings>

11,12; 제 1,2 공기배출구 21,22; 제 1,2 체크밸브11,12; First and second air outlets 21 and 22; First and second check valve

23,24; 제 1,2 리턴스프링
23,24; 1st and 2nd return spring

본 발명은 습식 더블클러치 트랜스미션(DCT)의 싱크로 액추에이터 구조에 관한 것으로서, 보다 상세하게는 싱크로 액추에이터 케이스의 양쪽 유로상에 체크밸브를 설치하여 습식 더블클러치 트랜스미션(DCT) 싱크로 액추에이터의 유압실로부터 밸 브 바디 사이에 공기층이 갇히지 않도록 하여 쉬프트 레일이 일정한 속도로 움직일 수 있도록 하는 습식 더블클러치 트랜스미션(DCT)의 싱크로 액추에이터 구조에 관한 것이다.The present invention relates to a synchro actuator structure of a wet double clutch transmission (DCT), and more particularly, by installing check valves on both flow paths of a synchro actuator case to provide a valve from a hydraulic chamber of a wet double clutch transmission (DCT) synchro actuator. The present invention relates to a synchro actuator structure of a wet double clutch transmission (DCT) which prevents air layers from being trapped between bodies so that the shift rail can move at a constant speed.

종래에는 도 1에서와 같이, 액추에이터 케이스(1)의 양쪽에 유압실(2)(2')을 구성하여 쉬프트 레일(3)을 움직이도록 하였다.In the related art, as shown in FIG. 1, hydraulic chambers 2 and 2 ′ are formed on both sides of the actuator case 1 to move the shift rail 3.

그러나, 상기의 구조는 밸브 바디로부터 유체가 케이스(1)의 긴 유로를 통하여 전달되기 때문에 중간에 공기가 갇혀 생기는 여러 문제점이 있다.However, the above structure has various problems in that air is trapped in the middle because the fluid is transferred from the valve body through the long flow path of the case 1.

즉, 유압이 작용하는 유압실(2 또는 2')쪽의 공기층이 갇히게 되면, 공기는 압축이 되기 때문에 쉬프트 레일(3)의 스트로크가 감소되는 문제점이 있고, 반대편 유압이 빠지는 쪽 유압실 라인에 공기가 갇힌 경우에는 공기가 압축되어 쉬프트 레일(3)의 이동을 방해하게 되며, 이러한 문제는 곧 쉬프트 레일(3)의 스트로크에 의해 싱크로가 체결되는 구조에서는 변속 속도가 일정하지 않고 매우 느려지는 단점을 초래하게 되었다.That is, when the air layer in the hydraulic chamber (2 or 2 ') to the hydraulic pressure is trapped, there is a problem that the stroke of the shift rail (3) is reduced because the air is compressed, the hydraulic chamber line on the opposite side of the hydraulic chamber If the air is trapped, the air is compressed to hinder the movement of the shift rail 3. This problem is that the speed of shifting is not constant and is very slow in the structure in which the synchro is fastened by the stroke of the shift rail 3. Resulted.

따라서, 본 발명은 상기와 같은 종래의 문제점을 해결하기 위해 안출된 것으로서 본 발명은, 싱크로 액추에이터 케이스의 양쪽 유로상에 체크밸브를 설치 구성함으로써, 습식 더블클러치 트랜스미션(DCT) 싱크로 액추에이터의 유압실로부터 밸브 바디 사이에 공기층이 갇히지 않도록 하여 쉬프트 레일을 항상 일정한 속도로 유지시켜 더블클러치 트랜스미션(DCT)의 변속 성능을 향상시킬 수 있도록 하는 습식 더블클러치 트랜스미션(DCT)의 싱크로 액추에이터 구조를 제공하려는데 그 목적이 있 다.Accordingly, the present invention has been made to solve the above-mentioned conventional problems, and the present invention is provided by installing check valves on both flow paths of a synchro actuator case, so that the hydraulic chamber of a wet double clutch transmission (DCT) synchro actuator can be installed. The purpose of this invention is to provide a synchro actuator structure for a wet double clutch transmission (DCT) that ensures that the shift rail is always maintained at a constant speed to improve the shifting performance of the double clutch transmission (DCT) by preventing air trapped between the valve bodies. have.

이하 첨부된 도면에 의하여 본 발명의 바람직한 일실시예를 설명하면 다음과 같다.Referring to the preferred embodiment of the present invention by the accompanying drawings as follows.

도 2는 본 발명의 일실시예로 습식 더블클러치 트랜스미션(DCT)의 싱크로 액추에이터에 체크밸브가 적용된 상태의 측단면 개략도 이다.Figure 2 is a side cross-sectional schematic view of the check valve is applied to the synchro actuator of the wet double clutch transmission (DCT) in one embodiment of the present invention.

도 2에 도시된 바와같이, 액추에이터 케이스(1)의 양쪽에 유압실(2)(2')을구성하여 쉬프트 레일(3)을 움직이도록 한 구조에 있어서,As shown in Fig. 2, in the structure in which the hydraulic rails 2 and 2 'are formed on both sides of the actuator case 1 to move the shift rail 3,

상기 케이스(1)의 양쪽 유로에는 각각 제 1,2 공기배출관(11)(12)을 형성하고,First and second air discharge pipes 11 and 12 are formed in both flow paths of the case 1,

상기 제 1,2 공기배출관(11)(12)에는 쉬프트 레일(3)이 일정한 속도로 움직일 수 있도록 공기를 외부로 배출시키는 제 1,2 체크밸브(21)(22)와,The first and second air discharge pipes 11 and 12 include first and second check valves 21 and 22 for discharging air to the outside so that the shift rail 3 moves at a constant speed.

상기 제 1,2 체크밸브(21)(22)의 개폐속도를 제어하는 제 1,2 리턴스프링(23)(24)을 형성함을 특징으로 한다.The first and second return springs 23 and 24 for controlling the opening and closing speeds of the first and second check valves 21 and 22 are formed.

이와같이 구성된 본 발명의 일실시예에 대한 작용을 첨부된 도 2를 참조하여 설명하면 다음과 같다.Referring to Figure 2 attached to the operation of an embodiment of the present invention configured as described above are as follows.

먼저, 액추에이터 케이스(1)의 양쪽 유압실(2 또는 2')로 유체가 교대로 공급되는 경우, 쉬프트 레일(3)은 직선왕복의 직선운동을 하게 된다.First, when fluid is alternately supplied to both hydraulic chambers 2 or 2 'of the actuator case 1, the shift rails 3 perform a linear reciprocating linear movement.

즉, 케이스(1)의 일측 유압실(2)로 유체가 공급되는 경우, 상기 유체의 공급으로부터 쉬프트 레일(3)은 다른 쪽 방향의 유압실(2')로 이동하게 된다.That is, when fluid is supplied to the hydraulic chamber 2 on one side of the case 1, the shift rail 3 moves to the hydraulic chamber 2 'in the other direction from the supply of the fluid.

그리고, 상기 유압실(2)의 유로상에 형성된 제 1 체크밸브(21)는 제 1 리턴스프 링(23)의 탄성력에 의해 제 1 공기배출구(11)를 개방시키게 되는 바,In addition, the first check valve 21 formed on the flow path of the hydraulic chamber 2 opens the first air outlet 11 by the elastic force of the first return spring 23,

상기 유압실(2)내의 공기는 제 1 공기배출구(11)를 통해 외부로 빠져나가게 된다.The air in the hydraulic chamber 2 is discharged to the outside through the first air outlet (11).

이때, 상기 제 1 체크밸브(21)는 유체가 유압실(2)을 완전하게 채울 때, 제 1 리턴스프링(23)의 탄성력을 극복하면서 제 1 공기배출구(11)를 차단한다.In this case, when the fluid completely fills the hydraulic chamber 2, the first check valve 21 blocks the first air outlet 11 while overcoming the elastic force of the first return spring 23.

반대로, 쉬프트레일(3)이 이동되는 반대편의 유압실(2')에서도 유체가 빠져나가면서 그 배출압력에 의해 제 2 체크밸브(22)가 제 2 리턴스프링(24)의 탄성력을 극복하면서 제 2 공기배출구(12)를 차단하게 되는 바,On the contrary, the fluid flows out from the hydraulic chamber 2 'on the opposite side to which the shift rail 3 is moved and the second check valve 22 overcomes the elastic force of the second return spring 24 by the discharge pressure. 2 bar to block the air outlet (12),

상기 유압실(2)(2')로부터 밸브 바디의 사이에서는 공기층이 형성되지 않게 되고, 이는 곧 쉬프트 레일(3)의 직선왕복운동은 항상 일정한 속도를 유지할 수 있게 되는 것이다.
즉, 상기와 같은 작동을 상기 제 1,2 체크밸브(21,22)와 제 1,2 리턴스프링(23,24)의 관계에서 설명하면, 제 1,2 리턴스프링(23,24)의 탄발지지를 받는 제 1,2 체크밸브(21,22)는 유압실에 유압이 적용되지 않은 상태에서는 공기배출을 위한 제1,2공기배출구(11,12)를 항상 열린 상태로 형성하지만, 유압이 작용되면 상기 제 1,2 체크밸브(21,22)는 제 1,2 리턴스프링(23,24)을 압축하면서 이동하고, 이러한 상기 제 1,2 체크밸브(21,22)의 이동으로 상기 제1,2공기배출구(11,12)가 막히게 된다.
즉, 상기와 같이 상기 제1공기배출구(11)가 제 1 체크밸브(21)에 의해 막히면, 유압실(2)로 공급된 유압은 쉬프트레일(3)에 작용되어 쉬프트레일(3)을 이동시키게 된다.
그리고, 쉬프트레일(3)의 이동으로 반대쪽 유압실(2’)에서는 유압이 빠져나가고 동시에 유압을 받는 제 2 체크밸브(22)가 제,2 리턴스프링(24)을 공기를 모두 배출시킨 제2공기배출구(12)를 차단하고, 이로 인해 유압실(2’)에서도 공기는 모두 빠져나간 상태에서 유압이 배출됨으로써 공기에 의한 쉬프트레일(3)의 이동이 방해받지 않게 된다.No air layer is formed between the hydraulic chambers 2 and 2 'between the valve bodies, which means that the linear reciprocating motion of the shift rail 3 can always maintain a constant speed.
That is, when the above operation is explained in the relationship between the first and second check valves 21 and 22 and the first and second return springs 23 and 24, the first and second return springs 23 and 24 are shot. The first and second check valves 21 and 22, which are supported, always form the first and second air outlets 11 and 12 for discharging air in a state where the hydraulic pressure is not applied to the hydraulic chamber. When actuated, the first and second check valves 21 and 22 move while compressing the first and second return springs 23 and 24, and the first and second check valves 21 and 22 are moved by the movement of the first and second check valves 21 and 22. 1,2 air outlets 11 and 12 are blocked.
That is, when the first air outlet 11 is blocked by the first check valve 21 as described above, the hydraulic pressure supplied to the hydraulic chamber 2 is applied to the shift rail 3 to move the shift rail 3. Let's go.
In addition, the second check valve 22 which discharges the hydraulic pressure from the opposite hydraulic chamber 2 'by the movement of the shift rail 3 and simultaneously receives the second and second return springs 24 discharges the air. The air outlet 12 is blocked, so that the hydraulic pressure is discharged in a state where all of the air escapes from the hydraulic chamber 2 'so that the movement of the shift rail 3 by air is not disturbed.

이상에서 설명한 바와같이 본 발명은 싱크로 액추에이터 케이스의 양쪽 유로상에 체크밸브를 설치 구성함으로써, 습식 더블클러치 트랜스미션(DCT) 싱크로 액추에이터의 유압실로부터 밸브 바디 사이에 공기층이 갇히지 않도록 하여 쉬프트 레일을 항상 일정한 속도로 유지시켜 더블클러치 트랜스미션(DCT)의 변속 성능을 향상시키는 효과를 제공한다.As described above, according to the present invention, by installing check valves on both flow paths of the synchro actuator case, the air rail is not trapped between the valve body from the hydraulic chamber of the wet double clutch transmission (DCT) synchro actuator and the shift rail is always fixed. Maintaining speed provides the effect of improving the shifting performance of the double clutch transmission (DCT).

Claims (1)

액추에이터 케이스의 양쪽에 유압실을 구성하여 쉬프트 레일을 움직이도록 한 구조에 있어서,In the structure in which the hydraulic rail is formed on both sides of the actuator case to move the shift rail, 상기 케이스의 양쪽 유로에는 각각 제 1,2 공기배출관을 형성하고, 상기 제 1,2 공기배출관에는 쉬프트 레일이 일정한 속도로 움직일 수 있도록 공기를 외부로 배출시키는 제 1,2 체크밸브와, 상기 제 1,2 체크밸브의 개폐속도를 제어하는 제 1,2 리턴스프링을 형성함을 특징으로 하는 습식 더블클러치 트랜스미션(DCT)의 싱크로 액추에이터 구조.First and second air discharge pipes are formed in both flow paths of the case, and the first and second air discharge pipes include first and second check valves for discharging air to the outside so that the shift rail can move at a constant speed; Synchronous actuator structure of a wet double clutch transmission (DCT) characterized in that the first and second return spring to control the opening and closing speed of the first and second check valve.
KR1020040096443A 2004-11-23 2004-11-23 Synchronous Actuator Structure of Wet Double Clutch Transmission KR101047656B1 (en)

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KR1020040096443A KR101047656B1 (en) 2004-11-23 2004-11-23 Synchronous Actuator Structure of Wet Double Clutch Transmission

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KR100666538B1 (en) * 2005-08-26 2007-01-09 현대자동차주식회사 Oil pressure control device for double clutch transmission
JP5251256B2 (en) * 2007-09-21 2013-07-31 日産自動車株式会社 Drag torque reduction control device for wet rotary clutch
US8083642B2 (en) 2007-09-21 2011-12-27 Nissan Motor Co., Ltd. Transmission apparatus

Citations (2)

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Publication number Priority date Publication date Assignee Title
KR19980048917U (en) * 1996-12-30 1998-10-07 박병재 Gear shift control device for vehicle manual transmission
KR19990060251A (en) * 1997-12-31 1999-07-26 정몽규 Timing belt tensioning device

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR19980048917U (en) * 1996-12-30 1998-10-07 박병재 Gear shift control device for vehicle manual transmission
KR19990060251A (en) * 1997-12-31 1999-07-26 정몽규 Timing belt tensioning device

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