KR20160049283A - Device of hydraulic circuit in wet DCT using assistant motor-driven pump - Google Patents

Device of hydraulic circuit in wet DCT using assistant motor-driven pump Download PDF

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KR20160049283A
KR20160049283A KR1020140146153A KR20140146153A KR20160049283A KR 20160049283 A KR20160049283 A KR 20160049283A KR 1020140146153 A KR1020140146153 A KR 1020140146153A KR 20140146153 A KR20140146153 A KR 20140146153A KR 20160049283 A KR20160049283 A KR 20160049283A
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pressure
valve
control
clutch
controlling
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KR1020140146153A
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Korean (ko)
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KR101704125B1 (en
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송수영
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현대 파워텍 주식회사
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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
    • 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
    • F16H61/02—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 characterised by the signals used
    • 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
    • F16H61/04—Smoothing ratio shift
    • 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
    • F16H61/04—Smoothing ratio shift
    • F16H61/06—Smoothing ratio shift by controlling rate of change of fluid pressure
    • 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
    • F16H61/38—Control of exclusively fluid gearing
    • F16H61/40—Control of exclusively fluid gearing hydrostatic
    • F16H61/4165—Control of cooling or lubricating
    • 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
    • F16H61/38—Control of exclusively fluid gearing
    • F16H61/40—Control of exclusively fluid gearing hydrostatic
    • F16H61/4192—Detecting malfunction or potential malfunction, e.g. fail safe
    • 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
    • F16H61/38—Control of exclusively fluid gearing
    • F16H61/40—Control of exclusively fluid gearing hydrostatic
    • F16H61/42—Control of exclusively fluid gearing hydrostatic involving adjustment of a pump or motor with adjustable output or capacity
    • F16H61/431—Pump capacity control by electro-hydraulic control means, e.g. using solenoid valves
    • 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
    • F16H61/68—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 specially adapted for stepped gearings
    • F16H61/684—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 specially adapted for stepped gearings without interruption of drive
    • F16H61/688—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 specially adapted for stepped gearings without interruption of drive with two inputs, e.g. selection of one of two torque-flow paths by clutches
    • 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
    • F16H63/00—Control outputs from the control unit to change-speed- or reversing-gearings for conveying rotary motion or to other devices than the final output mechanism
    • F16H63/02—Final output mechanisms therefor; Actuating means for the final output mechanisms
    • F16H63/30—Constructional features of the final output mechanisms
    • F16H63/34—Locking or disabling mechanisms

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  • Engineering & Computer Science (AREA)
  • General Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Physics & Mathematics (AREA)
  • Fluid Mechanics (AREA)
  • Hydraulic Clutches, Magnetic Clutches, Fluid Clutches, And Fluid Joints (AREA)
  • Control Of Transmission Device (AREA)

Abstract

The present invention relates to a wet DCT hydraulic circuit device using an auxiliary motor-driven pump. More specifically, the wet DCT hydraulic circuit device using an auxiliary motor-driven pump reduces a control flow rate required by a system. The present invention comprises: a constantly operated mechanical pump connected to a power shaft of an engine; an auxiliary motor-driven pump; a regulator valve which is a spool valve for controlling line pressure; a pressure control solenoid valve (PPV) for controlling system pressure; the PPV for controlling a valve clutch; a SVFS which is a linear Sol valve for controlling pressure; an accumulation for a decompression valve; a residual pressure valve; an accumulation; a lubrication reducing valve (LRV1); a secondary regulating valve (LRV2); K1 and K2 wet multi-plate clutches; and a check ball to prevent introduction of air.

Description

보조전동펌프를 적용한 습식 DCT 유압 회로 장치{Device of hydraulic circuit in wet DCT using assistant motor-driven pump}BACKGROUND OF THE INVENTION Field of the Invention [0001] The present invention relates to a wet type DCT hydraulic circuit device using an auxiliary electric pump,

본 발명은 보조전동펌프를 적용한 습식 DCT 유압 회로 장치에 관한 것으로서, 보다 상세하게는 보조전동펌프를 적용하여, Creep 발진 및 ISG 기능 시 클러치의 윤활유량을 공급하고, Regulator 밸브에서의 drain유량을 활용하여 윤활유량에 활용함으로써 시스템에서 요구되는 제어유량을 축소 시킬수 있는 보조전동펌프를 적용한 습식 DCT 유압 회로 장치에 관한 것이다.The present invention relates to a wet-type DCT hydraulic circuit device to which an auxiliary electric pump is applied. More particularly, an auxiliary electric pump is used to supply a lubricating oil amount of a clutch during a creep oscillation and an ISG function, The present invention relates to a wet type DCT hydraulic circuit device using an auxiliary electric pump capable of reducing a control flow rate required in a system by utilizing the amount of lubricant.

도 1에서 보는 바와 같이, 종래 발명에 따르면 습식 DCT에 적용된 유압회로 장치의 경우, 보편적으로, 엔진동력축과 연결된 상시 구동펌프를 적용하여, 유량 및 유압을 생성하며, 시스템에서 필요한 유압은 레귤레이터 밸브와 같은 압력제어밸브를 적용하여 얻게된다. As shown in FIG. 1, in the case of a hydraulic circuit device applied to a wet DCT according to the related art, a constant drive pump connected to an engine power shaft is generally used to generate a flow rate and an oil pressure, And a pressure control valve as shown in FIG.

이때, 종래의 시스템압은 각 기어를 쉬프트하기 위한 액추에이터를 제어하는 구동 압력 및 듀얼 클러치를 제어하기 위한 압력으로 사용하게된다.  At this time, the conventional system pressure is used as the driving pressure for controlling the actuator for shifting each gear and the pressure for controlling the dual clutch.

도 1의 유압회로 장치 기준으로 보면, 종래에는 시스템압을 제어하기 위한 Solenoid Valve 1 EA, Regulator 밸브 1EA를 적용하였으며,클러치를 제어하는 Solenoid Valve 2EA에 압력제어밸브 2 EA, Gear Actuator를 제어하기 위한, Solenoid Valve 4EA , 압력제어밸브 2EA 및 Shift 및 Select Valve 가 적용되었으며, 별도의 윤활압을 제어하기 위한 밸브와 Solenoid Valve가 적용되었다.  1, Solenoid Valve 1 EA and Regulator valve 1EA are used to control system pressure, and Solenoid Valve 2EA for controlling the clutch is used to control the pressure control valve 2 EA and Gear Actuator , Solenoid Valve 4EA, Pressure Control Valve 2EA, and Shift and Select Valve are applied. Valve and solenoid valve for separate lubrication control are applied.

전체적으로 압력 및 Shift 기능의 제어밸브는 8 EA가 적용되었으며, Solenoid Valve는 비례제어밸브가 5EA, Onoff Solenoid valve가 3 EA가 적용되었으며, 기타 Solenoid Valve가 1 EA 적용되어 총 9개의 Solenoid Valve가 적용되었다. 또한 P-R-N-D 변속을 위한 manual valve를 별도 적용하고 있다.  In total, 8 EA of pressure and shift control valves are applied. Solenoid valve has 5A proportional control valve and 3OA onoff solenoid valve, and 1 solenoid valve is applied with 1 EA. A total of 9 solenoid valves are applied . In addition, manual valve for P-R-N-D shift is applied separately.

종래의 클러치의 경우, 각각의 클러치를 제어하기 위한 독립제어 방식으로 Solenoid를 적용하고 있으나, Gear Actuator의 경우, 짝수단과 홀수단의 압력을 제어하는 압력제어밸브를 각각 적용하고 각 Gear를 선택하기 위하여 1개의 shift 밸브와 2 개의 select vavle를 적용하여 순차적인 pre-select 방식을 사용하고 있다. In the case of the conventional clutch, a solenoid is applied as an independent control method for controlling each clutch. However, in case of a gear actuator, a pressure control valve for controlling the pressure of the even-numbered stage and the hole means is applied respectively, One shift valve and two select vavle are applied to use a sequential pre-select method.

종래의 유압장치의 단점으로는 많은 압력제어 밸브를 적용하였으므로, 많은 유량을 필요로 하여, 상기 구동되는 기계식 오일펌프를 적용하였으며, 발진 시 윤활유량과 평상 시 윤활유량을 조절하기 위하여 별도의 윤활 제어용 밸브 및 solenoid valve를 적용하였다. As a disadvantage of the conventional hydraulic device, many pressure control valves are used. Therefore, a large amount of flow rate is required, and the above-mentioned mechanical oil pump is applied. In order to control the amount of lubricating oil during oscillation and the amount of lubricating oil during normal operation, Valve and solenoid valve were applied.

따라서, 종래에 적용된 Sol 밸브의 경우, VBS 타입 Sol이며 VBS는 Compact한 Size가 장점이나 유압성능이 떨어지고, 튜닝하는 orifice의 size에 따른 유압제어 범위가 달라지므로 품질 문제를 야기할 가능성이 커진다. Therefore, in the case of the Sol valve applied in the past, the VBS type Sol and the VBS have the advantage of compact size, the hydraulic performance deteriorates, and the hydraulic control range according to the size of the orifice to be tuned is changed.

또한 종래의 유량제어 계통의 경우, 부품수가 많은 단점을 가지고 있다. 또한 종래의 기어-엑츄에이터 제어를 위하여 적용된 Direct-Act Sol의 경우, 별도의 Spool 을 적용하여 유량을 제어하는데 정밀한 가공수준을 요구하고, 유량제어의 특성상 정밀제어에 어려움이 있다. 그리고, 최근 이슈가 되는 효율관련하여 ISG 기능을 가지고 있지 않아 ISG 기능을 갖는 변속기 대비 효율이 나쁘다.In addition, the conventional flow control system has a disadvantage in that the number of components is large. Also, in the case of the Direct-Act Sol applied to the conventional gear-actuator control, a separate spool is applied to control the flow rate, and a precise processing level is required. In addition, since it does not have the ISG function with respect to the efficiency of the recent issue, the efficiency is poor compared to the transmission having the ISG function.

즉 VBS sol 적용에 의하여 VBS에 공급되는 압력에 외란이 발생하면, VBS에 의하여 제어되는 요소는 압력 불안정이 증가한다.That is, when disturbance occurs to the pressure supplied to the VBS by the VBS sol application, the element controlled by the VBS increases the pressure instability.

따라서 상술한 문제점을 해결할 수 있는 새로운 장치가 필요하게 되었다.Therefore, a new apparatus capable of solving the above-described problems is required.

상술한 문제점을 해결하고자 본 발명은 라인압 가변제어를 통한 펌프 구동 손실 최소화 가능하고 ISG 기능 등을 구현할 수 있는 보조전동펌프를 적용한 습식 DCT 유압 회로 장치를 제공하는 데 목적이 있다.In order to solve the above-described problems, it is an object of the present invention to provide a wet type DCT hydraulic circuit device using an auxiliary electric pump capable of minimizing a pump driving loss through variable line pressure control and implementing an ISG function.

본 발명은 엔진의 동력축과 연결되고, 보조전동펌프를 적용한 습식 DCT 유압 회로 장치로서, Off 액시스(Off-axis) 타입으로 안정적인 유량을 공급하는 상시구동 기계식펌프; ISG 기능에 필요한 클러치 유압 공급 및 상기 클러치 윤활유량 공급을 담당하는 보조전동펌프; 상기 회로 장치에 따르는 시스템압을 생성하기 위한 라인압 제어용 스풀 밸브(Spool Valve)인 레귤레이터(Regulator) 밸브; 고압, 저 리크(leak) 용으로, 내부 피드백(F/back) 유로를 갖는 상기 시스템압 제어용 압력제어 솔레노이드(Sol) 밸브(PPV); 상기 클러치를 제어하기 위한 압력을 제어하는 밸브클러치 제어용 PPV; 상기 라인압을 제어하는 Regulator 밸브의 제어압을 가변제어하기 위한 압력제어용 linear Sol 밸브인 SVFS; 상기 라인압 Fail 시 라인압을 경감시키기 위한 라인압 Relief C/Ball; 상기 엔진 오프(Engine Off) 후 ISG 작동 시, 보조전동펌프 측 압력유량을 K1클러치측으로 유로 절환하는 체크 밸브(CHECK VALE-ISG); RED 밸브의 감압 유로내 유압 변동(fluctuation)을 완화시키는 감압 밸브용 어큠; 상기 클러치 향 제어압유로 내 잔압형성 유도로 제어 반응속도를 증대시키는 잔압밸브; 상기 클러치 제어압 떨림 완화 기능을 갖는 어큠; 상기 클러치 향 윤활유량 및 윤활압을 제어하기 위한 윤활 저감 밸브(LRV1;Lubrication Reducing 밸브); 샤프트(Shaft) 측 윤활 압력과 유량을 제어하기 위한 2차 레귤레이팅(regulating) 밸브(LRV2); 상기 K1, K2 습식 다판 클러치; 및 상기 보조전동펌프 구동 및 비 구동 시 메인펌프의 Suction에 영향을 주지 않기 위해 공기 유입 방지를 위한 체크볼(Check Ball);을 포함하여 구성된다.The present invention relates to a wet-type DCT hydraulic circuit device connected to a power shaft of an engine and to which an auxiliary electric pump is applied, comprising: a normally-driven mechanical pump for supplying a stable flow rate in an off-axis type; An auxiliary electric pump for supplying a clutch hydraulic pressure required for the ISG function and supplying the clutch lubricating oil amount; A regulator valve which is a line pressure control spool valve for generating a system pressure according to the circuit device; A pressure control solenoid valve (PPV) for the system pressure control having an internal feedback (F / back) flow path for high pressure and low leak; A PPV for valve clutch control for controlling a pressure for controlling the clutch; SVFS, which is a linear solenoid valve for pressure control for variably controlling the control pressure of the regulator valve for controlling the line pressure; A line pressure Relief C / Ball for reducing the line pressure at the line pressure failure; A check valve (CHECK VALE-ISG) for switching the pressure flow rate of the auxiliary electric pump side to the K1 clutch when the ISG is operated after the engine off (engine off); Pressure reducing valve of RED valve Pressure reducing valve for relieving the fluctuation of hydraulic pressure in the flow path; A residual pressure valve for increasing a control reaction speed of the residual pressure in the clutch control flow path; A clutch having a clutch-controlled anti-shake function; A lubricating reduction valve (LRV1) for controlling the lubricating oil amount and lubricating pressure of the clutch; A secondary regulating valve (LRV2) for controlling the lubricating pressure and flow on the shaft side; The K1 and K2 wet multi-plate clutches; And a check ball for preventing inflow of air so as not to affect the suction of the main pump when the auxiliary electric pump is driven and not driven.

일실시예에 있어서, 상기 상시 구동 기계식펌프는 오프 액시스(Off-axis) 또는 온 액시스(On-axis) 타입 오일펌프이다.In one embodiment, the always-driven mechanical pump is an off-axis or on-axis type oil pump.

일실시예에 있어서, 상기 고압, 저 리크(leak)용 PPV 솔밸브는 다이렉트 솔밸브(Direct-Sol)이고, 상기 레귤레이터(Regulator) 밸브의 드레인(drain) 유량으로 샤프트(shaft) 윤활유량에 사용하지 않아 상기 레귤레이터(regulator) 밸브의 작동성에 영향을 주지 않는다.In one embodiment, the high pressure, low leak PPV solenoid valve is a Direct-Sol valve and is used for the amount of shaft lubricant by the drain flow rate of the regulator valve. And does not affect the operability of the regulator valve.

일실시예에 있어서, 상기 K1, K2 클러치측 제어압의 압력 확인용으로 TCU에서 페일 세이프(Fail Safe) 감지 기능을 포함한 압력센서; ATF/DCTF의 온도를 측정하여 TCU 제어 로직(Logic)에 온도보정을 위한 OTS;를 더 포함하여 구성된다.In one embodiment, a pressure sensor including a fail safe detection function in the TCU for checking the pressure of the clutch-side control pressure of the K1 and K2 clutches; And an OTS for temperature correction in the TCU control logic by measuring the temperature of the ATF / DCTF.

일실시예에 있어서, 각 기어단 기어 액추에이터(Gear Actuator) 제어용 양방향 유량제어 솔레노이드(Sol) 밸브; 및 SVFS제어압의 안정화를 위한 댐핑(damping) 밸브인 솔레노이드(Sol) 댐핑밸브;를 더 포함하여 구성된다.In one embodiment, a bidirectional flow control solenoid (Sol) valve for controlling each gear gear actuator (Gear Actuator); And a solenoid (damping) valve as a damping valve for stabilizing the SVFS control pressure.

일실시예에 있어서, 상기 클러치에 상시 윤활유량을 공급하는 리듀싱(Reducing) 밸브;를 더 포함하여 구성되되, 샤프트(Shaft) 향 윤활유량을 시스템에서 만들어진 리듀싱(Reducing)압으로 일정한 유압/유량을 보내어, 상기 리듀싱(Reducing) 밸브에서의 감압 특성에 영향이 적다.In one embodiment, the system further comprises a reducing valve for supplying the clutch with a constant amount of lubricating oil, wherein the amount of lubricating oil toward the shaft is adjusted to a predetermined hydraulic pressure / The flow rate is reduced, and the influence on the decompression characteristics in the reducing valve is small.

본 발명에 따르면 라인압 가변제어를 통한 펌프 구동 손실 최소화 가능하므로 효율 증대 및 연비향상이 가능하다.According to the present invention, pump drive loss can be minimized through variable line pressure control, thereby increasing efficiency and improving fuel efficiency.

또한 본 발명에 따르면 ISG 기능을 구현하기 위하여 보조전동펌프를 적용함에 따라 효율증대 및 연비 개선효과가 있다.Further, according to the present invention, by applying the auxiliary electric pump to implement the ISG function, the efficiency and the fuel consumption can be improved.

또한 본 발명에 따르면 보조전동펌프를 적용하여 저 rpm 시 클러치향 윤활유량을 공급함으로써 메인 펌프의 용량을 줄임으로써 유량손실을 줄이고 효율을 높일 수 있다. According to the present invention, by applying the auxiliary electric pump to reduce the capacity of the main pump by supplying the clutch lubricating oil amount at low rpm, the flow loss can be reduced and the efficiency can be increased.

또한 본 발명에 따르면 Regulator 밸브의 drain 유로에 감압용 밸브(LRV2)를 적용함으로써 버려지는 유량을 활용함으로써 효율이 증대된다.Further, according to the present invention, by applying the pressure reducing valve (LRV2) to the drain channel of the regulator valve, the efficiency is increased by utilizing the discharged amount.

또한 본 발명에 따르면 단순구조이므로 조립 공수 단순화에 따른 2차 비용이 절감되고, 고단화에 따른 상품성 증대와, 시스템 압 및 클러치를 제어하는 별도의 Spool 밸브를 적용하지 않음으로써 제어성 향상 및 구조 단순화 시킬 수 있다.Further, according to the present invention, since the structure is simplified, the secondary cost due to the simplification of the assembling operation can be reduced, and the spool valve for controlling the system pressure and the clutch is not applied, thereby improving the controllability and simplifying the structure .

또한 본 발명에 따르면 시스템압을 이원화 시킴으로써 Fail Safe 기능을 보완하였다. In addition, according to the present invention, the fail safe function is supplemented by biasing the system pressure.

도 1은 종래 발명에 따른 습식 DCT에 적용된 유압회로 장치를 개념 도면이다.
도 2는 종래 발명 다른 예에 따른 습식 DCT에 적용된 유압회로 장치를 개념 도면이다.
도 3은 본 발명의 일실시예에 따른 보조전동펌프를 적용한 습식 DCT 유압 회로 장치의 전체적인 개념도를 보여주는 도면이다.
도 4는 본 발명의 다른 실시예에 따른 보조전동펌프를 적용한 습식 DCT 유압 회로 장치의 전체적인 개념도를 보여주는 도면이다.1 is a conceptual diagram of a hydraulic circuit device applied to a wet DCT according to the prior art.
2 is a conceptual diagram of a hydraulic circuit device applied to a wet DCT according to another conventional example of the invention.
FIG. 3 is a diagram showing a general concept of a wet type DCT hydraulic circuit device to which an auxiliary electric pump according to an embodiment of the present invention is applied.
FIG. 4 is a diagram showing a general concept of a wet DCT hydraulic circuit device to which an auxiliary electric pump according to another embodiment of the present invention is applied.

이하 본 발명의 실시를 위한 구체적인 내용을 도면을 참고하여 자세히 설명한다.DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS Hereinafter, the present invention will be described in detail with reference to the drawings.

본 발명을 충분히 이해하기 위해서 본 발명의 바람직한 실시예를 첨부 도면을 참조하여 설명한다. 본 발명의 실시예는 여러 가지 형태로 변형될 수 있으며, 본 발명의 범위가 아래에서 상세히 설명하는 실시예로 한정되는 것으로 해석되어서는 안 된다. 본 실시예는 당업계에서 평균적인 지식을 가진 자에게 본 발명을 보다 완전하게 설명하기 위하여 제공되는 것이다. 따라서 도면에서의 요소의 형상 등은 보다 명확한 설명을 강조하기 위해서 과장되어 표현될 수 있다. 각 도면(특허 도 4)에서 동일한 부재는 동일한 참조부호로 도시한 경우가 있음을 유의하여야 한다. 또한, 본 발명의 요지를 불필요하게 흐릴 수 있다고 판단되는 공지 기능 및 구성에 대한 상세한 기술은 생략된다.
For a better understanding of the present invention, a preferred embodiment of the present invention will be described with reference to the accompanying drawings. The embodiments of the present invention may be modified into various forms, and the scope of the present invention should not be construed as being limited to the embodiments described in detail below. The present embodiments are provided to enable those skilled in the art to more fully understand the present invention. Therefore, the shapes and the like of the elements in the drawings can be exaggeratedly expressed to emphasize a clearer description. It should be noted that in each drawing (patent FIG. 4), the same members are denoted by the same reference numerals. Further, detailed descriptions of well-known functions and configurations that may be unnecessarily obscured by the gist of the present invention are omitted.

본 발명은 상시구동 기계식펌프(1), 보조전동펌프(3), 레귤레이터(Regulator) 밸브(4), 압력제어 솔레노이드 밸브(PPV)(6), 밸브클러치 제어용 PPV(7), SVFS(8), 라인압 Relief C/Ball(11), 체크 밸브(CHECK VALE-ISG)(13), 감압 밸브용 어큠(14), 잔압밸브(15), 어큠(16), 윤활 저감 밸브(LRV1;Lubrication Reducing 밸브)(17), 2차 레귤레이팅(regulating) 밸브(LRV2)(18), K1, K2 습식 다판 클러치(20), 체크볼(Check Ball)(22) 등으로 핵심 구성된다.The present invention relates to a continuously variable transmission comprising a continuously driven mechanical pump 1, an auxiliary electric pump 3, a regulator valve 4, a pressure control solenoid valve (PPV) 6, a valve clutch control PPV 7, A line pressure relief C / Ball 11, a check valve 13, a pressure reducing valve 14, a residual pressure valve 15, an oil pressure reducing valve 16, a lubrication reduction valve LRV1 A valve 17), a secondary regulating valve (LRV2) 18, a K1 and K2 wet multi-plate clutch 20, and a check ball 22, as shown in FIG.

구체적으로 살펴보면, 본 발명은 엔진의 동력축과 연결되고, 보조전동펌프(3)를 적용한 습식 DCT 유압 회로 장치로서, 예를 들어 일반적인 AT용 유압회로 장치 대비 변속 시간이 빠르고, 구조가 단순한 DCT를 제어하는 유압회로 장치이다.Specifically, the present invention is a wet DCT hydraulic circuit device connected to a power shaft of an engine, to which an auxiliary electric pump 3 is applied, for example, a DCT having a quick shift time and a simple structure compared to a general AT hydraulic circuit device Hydraulic circuit device.

구성별로 살펴보면, 상시구동 기계식펌프(1)는 액시스(Off-axis) 타입으로 안정적인 유량을 공급하는 펌프이고, 보조전동펌프(3)는 ISG(Idle Stop & Go) 기능에 필요한 클러치 유압 공급 및 상기 클러치 윤활유량 공급을 담당하는 펌프이다.The auxiliary power pump 3 is a pump for supplying a clutch hydraulic pressure necessary for the ISG (Idle Stop & Go) function and the auxiliary hydraulic pump 3 The clutch is a pump that is responsible for lubricating oil supply.

이로서, 본 발명은 ISG 기능을 갖추어, Idle 시 엔진정지 및 발진 시 초기 유압을 공급함으로써 효율증대가 가능하다.Thus, the present invention is equipped with an ISG function, and it is possible to increase the efficiency by supplying the initial hydraulic pressure when the engine is stopped and oscillated at the time of idle.

즉 ISG 기능 구현 및 저 rpm에서 저압의 윤활압/유량을 공급하기 위한 보조전동펌프(3)를 적용하고, 상시 구동 기계식펌프(1)는 오프 액시스(Off-axis) 외에 일반적인 오일펌프(On-axis 타입) 적용이 가능하다.In other words, the ISG function implementation and the auxiliary electric pump 3 for supplying the low-pressure lubrication pressure / flow rate at low rpm are applied, and the always-driven mechanical pump 1 is an off- axis type) can be applied.

또한 클러치 윤활유량은 별도의 보조전동펌프(3)의 윤활유량을 사용하므로 필요 시 클러치 향 윤활유량을 제어할 수 있다. Further, since the amount of lubricating oil of the clutch is used as the amount of lubricating oil of the auxiliary auxiliary electric motor 3, it is possible to control the lubricating oil amount to the clutch when necessary.

레귤레이터(Regulator) 밸브(4)는 상기 회로 장치에 따르는 시스템압을 생성하기 위한 라인압 제어용 스풀 밸브(Spool Valve)이다.The regulator valve 4 is a spool valve for line pressure control for generating a system pressure in accordance with the circuit device.

즉, 레귤레이터(regulator) 밸브(4)의 적용에 따라 가변 라인압 제어를 구현할 수 있어, 변속 후 압력을 낮추어 고압 펌프 구동에 따른 손실을 최소화하여 효율 증대를 통한 연비 개선효과가 크다.That is, the variable line pressure control can be implemented according to the application of the regulator valve 4, thereby reducing the post-shift pressure and minimizing the loss due to the operation of the high-pressure pump, thereby improving the fuel efficiency by increasing the efficiency.

압력제어 솔레노이드 밸브(PPV)(6)는 고압, 저 리크(leak) 용으로, 내부 피드백(F/back) 유로를 갖는 상기 시스템압 제어용 밸브로서, 클러치를 제어하는 PPV(직접제어 압력Sol)과 기어-엑츄에이터를 제어하는 양방향 유량제어 밸브를 홀수단/ 짝수단 구분/연동시킴으로써 Fail Safe 기능이 보강된다. 예를 들어 기어 액추에이터 비 정상 제어 시, 전단의 PPV 제어압 해제 등이 가능하다.The pressure control solenoid valve (PPV) 6 is a valve for system pressure control having an internal feedback (F / back) flow path for high pressure and low leak and includes a PPV (direct control pressure Sol) The fail safe function is reinforced by dividing / interlocking the bidirectional flow control valve that controls the gear-actuator with the hole means / even means. For example, when the gear actuator is under abnormal control, the PPV control pressure release of the front end is possible.

또한 클러치제어 시, PPV(direct-sol)을 적용하여 별도의 압력제어용 Spool 밸브가 불필요하여 클러치 제어 성능이 향상되고, 고압, 저 leak용 PPV 솔밸브 대신 일반적인 Direct-Sol을 적용하였다. In addition, in clutch control, PPV (direct-sol) is applied to eliminate the need for separate pressure control spool valve, so clutch control performance is improved and general Direct-Sol is applied instead of PPV solenoid valve for high pressure and low leak.

본 발명은 밸브클러치 제어용 PPV(7)는 상기 클러치를 제어하기 위한 압력을 제어하는 장치이고, 상기 라인압을 제어하는 Regulator 밸브의 제어압을 가변제어하기 위한 VFS(예 : 압력제어용 linear Sol 밸브)인 SVFS(8)로 구성된다.In the present invention, the PPV (7) for valve clutch control is a device for controlling the pressure for controlling the clutch, and a VFS (for example, a linear solenoid valve for pressure control) for variably controlling the control pressure of the regulator valve for controlling the line pressure, (8).

라인압 Relief C/Ball(11)은 상기 라인압의 fail 시, 라인압을 경감시키기 위한 구성이고, 체크 밸브(CHECK VALE-ISG)는 상기 엔진 오프(Engine Off) 후 ISG 작동 시, 보조전동펌프(3) 측 압력유량을 K1클러치측으로 유로 절환하는 밸브이다.The check valve (CHECK VALE-ISG) is provided for relieving the line pressure when the line pressure fails. The check valve (ISV) (3) side to the K1 clutch.

감압 밸브용 어큠(14)은 RED 밸브의 감압 유로내 유압 변동(fluctuation)을 완화시키고, 잔압밸브(15)는 상기 클러치 향 제어압유로 내 잔압형성 유도로 제어 반응속도를 증대시키는 밸브이다.The pressure reducing valve actuator 14 relieves the hydraulic pressure fluctuation in the pressure reducing passage of the RED valve and the residual pressure valve 15 is a valve for increasing the control reaction speed by inducing the residual pressure in the clutch control pressure passage.

어큠(16)은 상기 클러치 제어압 떨림 완화 기능을 갖고, 윤활 저감 밸브(LRV1;Lubrication Reducing 밸브)는 상기 클러치 향 윤활유량 및 윤활압을 제어하기 위한 밸브이다.The clutch 16 has the clutch control pressure relieving function and the lubrication reducing valve LRV1 is a valve for controlling the lubricating oil amount and the lubricating pressure to the clutch.

DCT의 특징 중 토크 컨버터(Torq. Convertor)가 없는 관계로 클러치에 의한 발진 시 많은 윤활유량을 필요로 하기 때문에 클러치로 향하는 윤활유량을 제어하기 LRV1 밸브가 포함되었다. 즉 1차 감압밸브로부터 2차로 감압할 수 있다.The LRV1 valve was included to control the amount of lubricant directed to the clutch because it lacks a torque converter (Torq. Convertor) among the features of the DCT and therefore requires a large amount of lubricating oil when oscillating by the clutch. That is, the pressure can be reduced from the primary pressure reducing valve to the secondary pressure.

레귤레이터(Regulator) 밸브(4)로부터 생성된 2차 라인압 유로에 감압 밸브를 적용하여 변속제어 시 압력불안정요소를 최소화하여 리듀싱(reducing)압으로부터 클러치로 향하는 항시 공급되는 윤활유량을 공급하도록 설계되었다. Regulator It is designed to apply the pressure reducing valve to the secondary line pressure passage created from the valve (4) to minimize the pressure instability element during the shift control and supply the amount of lubricating oil always supplied from the reducing pressure to the clutch .

본 발명의 펌프에서의 페일(fail)에 의한 라인압 상승에 따른 부품 파손을 방지하고 유압제어의 안정성을 증대시키기 위하여 PLV(라인압 relief 밸브)를 추가하여 페일 세이프(Fail safe) 기능을 할 수 있다. In order to prevent damage to parts due to line pressure rise due to failure of the pump of the present invention and to increase the stability of hydraulic control, a line pressure relief valve (PLV) may be added to perform fail safe function have.

2차 레귤레이팅(regulating) 밸브(LRV2)(18)는 샤프트(Shaft) 측 윤활 압력과 유량을 제어하기 위한 밸브이고, 저 rpm 시 윤활유량은 레귤레이터(Regulator) 밸브의 drain 유량으로 충당할 수 있도록 별도의 윤활용 감압밸브(LRV2) 를 적용함 으로써, 저 rpm 영역에서 시스템에서 생성한 고압을 사용할 필요가 없으므로 효율 증대 효과를 갖는다. The second regulating valve (LRV2) (18) is a valve for controlling the lubrication pressure and flow rate on the shaft side, and the amount of lubricating oil at the low rpm can be compensated by the drain flow of the regulator valve By applying the separate lubrication pressure reducing valve (LRV2), there is no need to use the high pressure generated in the system in the low rpm range, and thus the efficiency is increased.

따라서 본 발명은 상기 K1, K2 습식 다판 클러치 제어압이 최소 0.2 bar를 유지할 수 있도록 잔압밸브를 적용하여 제어 응답(response) 특성을 높였다. Accordingly, the present invention increases the control response characteristic by applying the residual pressure valve to maintain the control pressure of the K1 and K2 wet multi-plate clutches at a minimum of 0.2 bar.

체크볼(Check Ball)(13)은 상기 보조전동펌프(3) 구동 및 비 구동 시 메인펌프의 석션(Suction)에 영향을 주지 않기 위해 공기 유입 방지를 위한 장치이다.The check ball 13 is a device for preventing inflow of air in order not to affect the suction of the main pump when the auxiliary electric pump 3 is driven or not.

본 발명의 기어 액추에이터(Gear-Actuator) 제어를 위하여 구조가 단순화 양방향 유량제어 솔레노이드(Sol) 밸브가 적용되어, 변속 제어 시, 포스(Force) 제어 외 속도제어를 추가함으로써 변속제어 시 변속 충격을 최소화되게 할 수 있다.In order to control the gear actuator of the present invention, a simple structure is adopted. Bidirectional flow control solenoid valve is applied to minimize shift shock during shift control by adding a speed control other than a force control in shift control. .

본 발명에 따른 메인 석션 필터(Suction Filter; 2)는 유압제어 장치 내 이물질 유입을 차단하는 필터이고, 고압용 내장 필터(Filter; 12)는 밸브바디 내부 ATF/DCTF 내 이물질 제거 및 솔레노이드(Sol) 작동 시 이물질에 의한 스틱(stick) 성 방지하는 필터이다.The main suction filter 2 according to the present invention is a filter for blocking foreign matter from flowing into the hydraulic control device and the built-in filter for high pressure 12 removes foreign matters in the valve body internal ATF / DCTF and solenoid (Sol) It is a filter that prevents sticking due to foreign substances during operation.

본 발명의 압력센서(19)는 K1, K2 클러치측 제어압의 압력 확인용으로 TCU에서 페일 세이프(Fail Safe) 감지 기능을 포함한 센서이다.The pressure sensor 19 of the present invention is a sensor including a fail safe detection function in the TCU for confirming the pressure of the clutch-side control pressure of the K1 and K2 clutches.

본 발명은 클러치 및 기어 액추에이터(Gear-actuator) 제어 시 짝수단과 홀수단측을 제어하는 유압을 이원화하여 페일(Fail) 시 대응이 유리하도록 하였다.In the present invention, when the clutch and the gear actuator are controlled, the oil pressure for controlling the even-numbered stage and the hole means side is biased, so that the countermeasure is made in the case of fail.

본 발명에 따라 변속제어를 담당하는 K1, K2 클러치(20)는 독립제어가 되며, 한쪽의 페일(Fail) 발생 시 정상제어 가능한 쪽으로 제어 정상 운행이 가능하다. According to the present invention, the clutches K1 and K2 that are responsible for the shift control become independent control, and control normal operation to the normal control can be performed when one of fail occurs.

본 발명의 K1, K2 측에 압력센서를 장착하여 인터락(Interlock) 감지(방지) 및 Micro-Slip 제어가 가능하도록 구성되어 있다. The pressure sensor is mounted on the K1 and K2 sides of the present invention to enable interlock detection (prevention) and micro-slip control.

OTS(23)는 상기 ATF/DCTF의 온도를 측정하여 TCU 제어 Logic에 온도보정을 하기 위한 장치이다.The OTS 23 is a device for measuring the temperature of the ATF / DCTF and performing temperature correction on the TCU control logic.

본 발명의 다른 실시예로서, 각 기어단 Gear Actuator 제어용 양방향 유량제어 솔레노이드(Sol) 밸브(9)와, SVFS(8)제어압의 안정화를 위한 댐핑(damping) 밸브인 솔레노이드(Sol) 댐핑밸브(10)를 더 포함하여 구성된다.As another embodiment of the present invention, a bidirectional flow control solenoid valve 9 for controlling each gear stage actuator and a solenoid damping valve (damping valve) for damping control of the SVFS 8 control pressure 10).

본 발명의 또 다른 실시예로서, 간접제어용 솔레노이드(Solenoid) 밸브 및 상기 클러치에 상시 윤활유량을 공급하는 리듀싱(Reducing) 밸브를 더 포함하여 구성되고, 샤프트(Shaft) 향 윤활유량을 별도의 Shaft 윤활유압/유량제어용 밸브없이 시스템에서 만들어진 Reducing압으로 일정한 유압/유량을 보내는 Concept으로 펌프 유량이 충분할 경우 적용할 수 있으며, 항시 보내주는 유량을 일정하게 하므로 리듀싱(Reducing) 밸브에서의 감압 특성에 영향이 적다. As another embodiment of the present invention, there is provided a solenoid valve for indirect control and a reducing valve for supplying a constant amount of lubricant to the clutch, wherein the amount of the lubricant toward the shaft is adjusted by a separate shaft It is a concept to send constant hydraulic / flow rate to Reducing pressure created by system without lubrication hydraulic / flow control valve. It can be applied when pump flow rate is sufficient and constant flow rate is constantly supplied. Less impact.

본 발명은 라디에이터(Radiator)를 포함하는 차량 장착 쿨러(Cooler)(21)를 더 포함하여 구성될 수 있다. 별도의 별채형 cooler 없이 차량에서 사용하는 cooler를 이용하여 부품비를 절감하였다. The present invention may further comprise a vehicle mounted cooler 21 including a radiator. We have reduced the parts cost by using the cooler which is used in the vehicle without a separate star cooler.

본 발명의 다른 실시예에 따라, 본 발명의 일실시예를 상술한 기본유압회로 장치와의 차이점을 중심으로 설명한다. In accordance with another embodiment of the present invention, an embodiment of the present invention will be described focusing on differences from the above-described basic hydraulic circuit device.

상시 구동 기계식펌프(1)는 오프 액시스(Off-axis) 외에 일반적인 오일펌프(On-axis 타입) 적용이 가능하다.The normally-driven mechanical pump 1 can be applied to a general oil pump (on-axis type) in addition to off-axis.

샤프트(Shaft) 향 윤활유량을 별도의 Shaft 윤활유압/유량제어용 밸브없이 시스템에서 만들어진 Reducing압으로 일정한 유압/유량을 보내는 Concept으로 펌프 유량이 충분할 경우 적용할 수 있으며, 항시 보내주는 유량을 일정하게 하므로 리듀싱(Reducing) 밸브에서의 감압 특성에 영향이 적다. Shaft Lubricating Oil Shaft Lubricating Shaft Lubricating Shaft Lubricating Oil Lubrication Shaft Lubrication Shaft Lubrication Shaft Lubrication Shaft Lubrication Shaft Lubrication Shaft Lubrication Shaft Lubrication Shaft Lubrication Shaft Lubrication Shaft Lubrication It has little influence on the decompression characteristics in the reducing valve.

예를 들어, 고압, 저 리크용 PPV 솔밸브 대신 일반적인 다이렉트-솔(Direct-Sol)을 적용하였다. 상기 컨셉(Concept)은 레귤레이터(Regulator) 밸브의 드레인(drain) 유량으로 샤프트(shaft) 윤활유량에 사용하지 않으므로 레귤레이터(regulator) 밸브의 작동성에 영향을 주지 않는다. For example, instead of the high-pressure, low-leak PPV solenoid valve, a common direct-sol is applied. The concept does not affect the operability of the regulator valve because it is not used for the amount of shaft lubricant at the drain flow rate of the regulator valve.

이상에서 설명된 본 발명의 보조전동펌프를 적용한 습식 DCT 유압 회로 장치는 예시일 뿐이고, 본 발명이 속한 기술분야의 통상의 지식을 가진 자라면 이로부터 다양한 변형 및 균등한 타 실시예가 가능하다는 점을 잘 알 수 있을 것이다. It will be apparent to those skilled in the art that various modifications and variations may be made in the present invention without departing from the spirit or scope of the invention as defined by the appended claims. You will know very well.

그러므로 본 발명은 상기의 상세한 설명에서 언급되는 형태로만 한정되는 것은 아님을 잘 이해할 수 있을 것이다. 따라서 본 발명의 진정한 기술적 보호 범위는 첨부된 특허청구범위의 기술적 사상에 의해 정해져야 할 것이다. 또한, 본 발명은 첨부된 청구범위에 의해 정의되는 본 발명의 정신과 그 범위 내에 있는 모든 변형물과 균등물 및 대체물을 포함하는 것으로 이해되어야 한다.Therefore, it is to be understood that the present invention is not limited to the above-described embodiments. Accordingly, the true scope of the present invention should be determined by the technical idea of the appended claims. It is also to be understood that the invention includes all modifications, equivalents, and alternatives falling within the spirit and scope of the invention as defined by the appended claims.

1 : 상시구동 기계식펌프
2 : 메인 Suction Filter
3 : 보조전동펌프
4 : Regulator 밸브
5 : Reducing 밸브
6 : 시스템압 제어용 압력제어 Sol 밸브(PPV)
7 : 클러치 제어용 PPV
8 : SVFS
9 : 양방향 유량제어 Sol 밸브
10 : Sol 댐핑밸브
11 : 라인압 Relief C/Ball 12 : 고압용 내장 Filter
13 : CHECK VALE-ISG
14 : 감압 밸브용 어큠
15 : 잔압밸브
16 : 어큠
17 : LRV1
18 : LRV2
19 : 압력센서
20 : K1, K2 습식 다판 클러치
21 : 차량 장착 쿨러
22 : Check Ball
23 : OTS 1: Always-on mechanical pump
2: Main Suction Filter
3: auxiliary electric pump
4: Regulator valve
5: Reducing valve
6: Pressure control solenoid valve (PPV) for system pressure control
7: PPV for clutch control
8: SVFS
9: Bidirectional Flow Control Sol Valve
10: Sol damping valve
11: Line pressure Relief C / Ball 12: Built-in filter for high pressure
13: CHECK VALE-ISG
14: Pressure regulator valve
15: Residual pressure valve
16:
17: LRV1
18: LRV2
19: Pressure sensor
20: K1, K2 wet multi-plate clutch
21: Vehicle Mounted Cooler
22: Check Ball
23: OTS

Claims (6)

엔진의 동력축과 연결되고, 보조전동펌프를 적용한 습식 DCT 유압 회로 장치로서, 오프 액시스(Off-axix) 타입으로 안정적인 유량을 공급하는 상시구동 기계식펌프; ISG 기능에 필요한 클러치 유압 공급 및 상기 클러치 윤활유량 공급을 담당하는 보조전동펌프; 상기 회로 장치에 따르는 시스템압을 생성하기 위한 라인압 제어용 스풀 밸브인 레귤레이터 밸브; 고압, 저 리크용으로, 내부 피드백 유로를 갖는 상기 시스템압 제어용 압력제어 솔레노이드 밸브; 상기 클러치를 제어하기 위한 압력을 제어하는 밸브클러치 제어용 PPV; 상기 라인압을 제어하는 레귤레이터 밸브의 제어압을 가변제어하기 위한 압력제어용 리니어 솔레노이드 밸브인 SVFS; 상기 라인압 Fail 시 라인압을 경감시키기 위한 라인압 Relief C/Ball; 상기 엔진 오프 후 ISG 작동 시, 보조전동펌프 측 압력유량을 K1 클러치측으로 유로 절환하는 체크 밸브; RED 밸브의 감압 유로내 유압 변동을 완화시키는 감압 밸브용 어큠; 상기 클러치 향 제어압유로 내 잔압형성 유도로 제어 반응속도를 증대시키는 잔압밸브; 상기 클러치 제어압 떨림 완화 기능을 갖는 어큠; 상기 클러치 향 윤활유량 및 윤활압을 제어하기 위한 윤활 저감 밸브(LRV1); 샤프트 측 윤활 압력과 유량을 제어하기 위한 2차 레귤레이팅 밸브(LRV2); 상기 K1, K2 습식 다판 클러치; 및 상기 보조전동펌프 구동 및 비 구동 시 메인펌프의 석션에 영향을 주지 않기 위해 공기 유입 방지를 위한 체크볼;을 포함하여 구성되는 것을 특징으로 하는 보조전동펌프를 적용한 습식 DCT 유압 회로 장치.A wet DCT hydraulic circuit device connected to a power shaft of an engine and to which an auxiliary electric pump is applied, comprising: a normally-driven mechanical pump for supplying a stable flow rate in an off-axis type; An auxiliary electric pump for supplying a clutch hydraulic pressure required for the ISG function and supplying the clutch lubricating oil amount; A regulator valve which is a spool valve for line pressure control for generating a system pressure in accordance with the circuit device; A pressure control solenoid valve for the system pressure control having an internal feedback passage for high pressure and low leakage; A PPV for valve clutch control for controlling a pressure for controlling the clutch; SVFS, which is a linear solenoid valve for pressure control for variably controlling the control pressure of the regulator valve for controlling the line pressure; A line pressure Relief C / Ball for reducing the line pressure at the line pressure failure; A check valve for switching the pressure flow rate of the auxiliary electric pump side to the K1 clutch side during ISG operation after the engine is turned off; A pressure reducing valve for relieving the oil pressure fluctuation in the pressure reducing passage of the RED valve; A residual pressure valve for increasing a control reaction speed of the residual pressure in the clutch control flow path; A clutch having a clutch-controlled anti-shake function; A lubricating reduction valve (LRV1) for controlling the lubricating oil amount to the clutch and the lubricating pressure; A secondary regulating valve (LRV2) for controlling the shaft side lubrication pressure and flow rate; The K1 and K2 wet multi-plate clutches; And a check ball for preventing inflow of air so as not to affect suction of the main pump when the auxiliary electric pump is driven or not. 제1항에 있어서,
상기 상시 구동 기계식펌프는 오프 액시스 또는 온 액시스 타입 오일펌프인 것을 특징으로 하는 보조전동펌프를 적용한 습식 DCT 유압 회로 장치.The method according to claim 1,
Wherein the normally-driven mechanical pump is an off-axis or on-axis oil pump. 제1항에 있어서,
상기 고압, 저 리크용 PPV 솔밸브는 다이렉트 솔밸브이고, 상기 레귤레이터 밸브의 드레인 유량으로 샤프트 윤활유량에 사용하지 않아 상기 레귤레이터 밸브의 작동성에 영향을 주지 않는 것을 특징으로 하는 보조전동펌프를 적용한 습식 DCT 유압 회로 장치.The method according to claim 1,
Characterized in that the PPV solenoid valve for high pressure and low leak is a direct solval valve and does not affect the operability of the regulator valve because it is not used for the amount of shaft lubricating oil by the drain flow rate of the regulator valve. Hydraulic circuit device. 제1항에 있어서,
상기 K1, K2 클러치측 제어압의 압력 확인용으로 TCU에서 페일 세이프 감지 기능을 포함한 압력센서;
ATF/DCTF의 온도를 측정하여 TCU 제어 로직에 온도보정을 위한 OTS;를 더 포함하여 구성되는 것을 특징으로 하는 보조전동펌프를 적용한 습식 DCT 유압 회로 장치.The method according to claim 1,
A pressure sensor including a fail safe detection function in the TCU for checking the clutch-side control pressure of the K1 and K2;
Further comprising an OTS for temperature correction in the TCU control logic by measuring the temperature of the ATF / DCTF. 제1항에 있어서,
각 기어단 기어 액추에이터 제어용 양방향 유량제어 솔레노이드 밸브; 및
SVFS 제어압의 안정화를 위한 댐핑 밸브인 솔레노이드 댐핑밸브;를 더 포함하여 구성되는 것을 특징으로 하는 보조전동펌프를 적용한 습식 DCT 유압 회로 장치.The method according to claim 1,
Bidirectional flow control solenoid valve for controlling each gear gear actuator; And
Further comprising a solenoid damping valve that is a damping valve for stabilizing the SVFS control pressure. 제1항에 있어서,
상기 클러치에 상시 윤활유량을 공급하는 리듀싱 밸브;를 더 포함하여 구성되되,
샤프트 향 윤활유량을 시스템에서 만들어진 리듀싱압으로 일정한 유압/유량을 보내어, 상기 리듀싱 밸브에서의 감압 특성에 영향이 적은 것을 특징으로 하는 보조전동펌프를 적용한 습식 DCT 유압 회로 장치.The method according to claim 1,
And a reducing valve for supplying an amount of lubricating oil to the clutch at all times,
Wherein the amount of shaft lubricating oil is sent to a constant hydraulic pressure / flow rate at a ruddy pressure produced by the system, so that there is little influence on the pressure reduction characteristics of the reducing valve.
KR1020140146153A 2014-10-27 2014-10-27 Device of hydraulic circuit in wet DCT using assistant motor-driven pump KR101704125B1 (en)

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Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR20190007952A (en) * 2017-07-14 2019-01-23 현대자동차주식회사 Hydraulic control system of automatic transmission for idle stop go vehicles
CN111219429A (en) * 2018-11-26 2020-06-02 现代自动车株式会社 Method for controlling oil pump for DCT
KR20200119028A (en) 2019-04-09 2020-10-19 현대자동차주식회사 Line pressure control method for dct
CN112503377A (en) * 2020-12-09 2021-03-16 安徽江淮汽车集团股份有限公司 Clutch control and lubrication system
CN114658843A (en) * 2022-03-16 2022-06-24 陕西法士特齿轮有限责任公司 Hydraulic control system of hybrid automatic transmission

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20110314944A1 (en) * 2009-01-23 2011-12-29 Markus Brandenburg Control device for an automated gear shift transmission
KR20130047282A (en) * 2011-10-31 2013-05-08 현대 파워텍 주식회사 Hydraulic controlling apparatus for dual clutch transmission
JP2013199985A (en) * 2012-03-26 2013-10-03 Honda Motor Co Ltd Oil pressure supply device of automatic transmission

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20110314944A1 (en) * 2009-01-23 2011-12-29 Markus Brandenburg Control device for an automated gear shift transmission
KR20130047282A (en) * 2011-10-31 2013-05-08 현대 파워텍 주식회사 Hydraulic controlling apparatus for dual clutch transmission
JP2013199985A (en) * 2012-03-26 2013-10-03 Honda Motor Co Ltd Oil pressure supply device of automatic transmission

Cited By (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR20190007952A (en) * 2017-07-14 2019-01-23 현대자동차주식회사 Hydraulic control system of automatic transmission for idle stop go vehicles
CN111219429A (en) * 2018-11-26 2020-06-02 现代自动车株式会社 Method for controlling oil pump for DCT
KR20200061854A (en) 2018-11-26 2020-06-03 현대자동차주식회사 Oil pump control method for dct
US10738841B2 (en) 2018-11-26 2020-08-11 Hyundai Motor Company Oil pump control method for DCT
CN111219429B (en) * 2018-11-26 2022-09-06 现代自动车株式会社 Method for controlling oil pump for DCT
KR20200119028A (en) 2019-04-09 2020-10-19 현대자동차주식회사 Line pressure control method for dct
US10830342B2 (en) 2019-04-09 2020-11-10 Hyundai Motor Company Line pressure control method for dual-clutch transmission
CN112503377A (en) * 2020-12-09 2021-03-16 安徽江淮汽车集团股份有限公司 Clutch control and lubrication system
CN114658843A (en) * 2022-03-16 2022-06-24 陕西法士特齿轮有限责任公司 Hydraulic control system of hybrid automatic transmission
CN114658843B (en) * 2022-03-16 2023-11-07 陕西法士特齿轮有限责任公司 Hydraulic control system of hybrid automatic transmission

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