KR20000019270U - Hydraulic system stablizing line pressure - Google Patents
Hydraulic system stablizing line pressure Download PDFInfo
- Publication number
- KR20000019270U KR20000019270U KR2019990005694U KR19990005694U KR20000019270U KR 20000019270 U KR20000019270 U KR 20000019270U KR 2019990005694 U KR2019990005694 U KR 2019990005694U KR 19990005694 U KR19990005694 U KR 19990005694U KR 20000019270 U KR20000019270 U KR 20000019270U
- Authority
- KR
- South Korea
- Prior art keywords
- pressure
- line
- control
- line pressure
- valve
- Prior art date
Links
- 230000001934 delay Effects 0.000 claims 1
- 230000001105 regulatory effect Effects 0.000 abstract description 5
- 230000005540 biological transmission Effects 0.000 abstract description 4
- 230000001276 controlling effect Effects 0.000 abstract description 4
- 238000010586 diagram Methods 0.000 description 4
- 230000007423 decrease Effects 0.000 description 2
- 230000003993 interaction Effects 0.000 description 1
- 230000007257 malfunction Effects 0.000 description 1
- 230000000087 stabilizing effect Effects 0.000 description 1
Classifications
-
- 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
- F16H61/4078—Fluid exchange between hydrostatic circuits and external sources or consumers
- F16H61/4096—Fluid exchange between hydrostatic circuits and external sources or consumers with pressure accumulators
-
- 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
- F16H61/0003—Arrangement or mounting of elements of the control apparatus, e.g. valve assemblies or snapfittings of valves; Arrangements of the control unit on or in the transmission gearbox
- F16H61/0009—Hydraulic control units for transmission control, e.g. assembly of valve plates or valve units
-
- 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
- F16H61/065—Smoothing ratio shift by controlling rate of change of fluid pressure using fluid control means
- F16H61/068—Smoothing ratio shift by controlling rate of change of fluid pressure using fluid control means using an orifice control valve
-
- 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
- F16H61/4043—Control of a bypass valve
- F16H61/4052—Control of a bypass valve by using a variable restriction, e.g. an orifice valve
Landscapes
- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Control Of Transmission Device (AREA)
- Physics & Mathematics (AREA)
- Fluid Mechanics (AREA)
Abstract
본 고안은 라인압의 불안정에 따른 변속비의 불안정을 방지하는 라인압 조절 시스템을 제공하는 데 그 목적이 있다.The object of the present invention is to provide a line pressure control system that prevents instability of the transmission ratio due to instability of the line pressure.
이를 실현하기 위한 라인압 조절 시스템은, 솔레노이드 밸브(1)의 제어압과 탄성부재(13) 탄성력의 합력 및 이 합력에 대항하는 라인압에 의하여 오일펌프(11)로부터 공급되는 유압을 라인압으로 제어하는 레귤레이터 밸브(3)와, 솔레노이드 밸브(1)에서 레귤레이터 밸브(3)로 제어압을 공급하는 제어압 관로(9)에 오리피스 밸브(5)와 어큐뮬레이터(7)를 설치하여 구성됨에 특징이 있다.The line pressure regulating system for realizing this is based on the combined pressure of the control pressure of the solenoid valve 1 and the elastic force of the elastic member 13 and the line pressure against this force. An orifice valve (5) and an accumulator (7) are provided in the regulator valve (3) for controlling and the control pressure line (9) for supplying the control pressure from the solenoid valve (1) to the regulator valve (3). have.
Description
본 고안은 무단변속기용 유압 시스템에 관한 것으로서, 보다 상세하게는 구동 및 종동 풀리로 공급하여 무단변속하는 라인압을 안정화시키는 라인압 조절 시스템에 관한 것이다.The present invention relates to a hydraulic system for a continuously variable transmission, and more particularly, to a line pressure regulating system for stabilizing continuously variable line pressure by supplying a drive and a driven pulley.
일반적으로 무단변속기를 제어하는 유압 시스템은 구동 및 종동 풀리의 직경을 가변시키기 위하여 각 풀리의 유압실에 공급되는 라인압을 조절하는 라인압 조절 시스템을 구비하고 있다.In general, the hydraulic system for controlling the continuously variable transmission has a line pressure regulating system for adjusting the line pressure supplied to the hydraulic chamber of each pulley in order to vary the diameter of the driving and driven pulleys.
이 라인압 조절 시스템은 도 3에 도시된 바와 같이, 통상적으로 레귤레이터 밸브(51)와 솔레노이드 밸브(53)로 구성되어 있다. 레귤레이터 밸브(51)는 솔레노이드 밸브(53)의 듀티 제어압과 스프링(55) 탄성력의 합력 그리고 이 합력에 대항하는 라인압의 상호 작용에 의하여 오일펌프(57)로부터 공급되는 유압을 적절히 배출시키면서 라인압으로 제어한다.This line pressure regulating system typically consists of a regulator valve 51 and a solenoid valve 53, as shown in FIG. The regulator valve 51 is a line that properly discharges the hydraulic pressure supplied from the oil pump 57 by the interaction of the duty control pressure of the solenoid valve 53 and the force of the spring 55 elastic force and the line pressure against this force Controlled by pressure.
이 레귤레이터 밸브(51)에서는 상기와 같이 유압의 배출을 제어함에 따라 라인압이 결정된다. 즉, 솔레노이드 밸브(53)의 제어압이 높아지면 라인압도 높아지고, 제어압이 낮아지면 라인압도 낮아진다.In the regulator valve 51, the line pressure is determined by controlling the discharge of the hydraulic pressure as described above. That is, when the control pressure of the solenoid valve 53 increases, the line pressure also increases, and when the control pressure decreases, the line pressure also decreases.
그러나 상기와 같은 라인압 조절 시스템은 레귤레이터 밸브의 오작동 및 솔레노이드 밸브의 제어압이 불안정할 경우, 라인압의 불안정으로 인한 풀리의 작동 상태 불안정으로 변속비가 불안정하게 변화되는 단점이 있다. 특히 레귤레이터 밸브가 자체적으로 불안정할 경우 저주파의 진동이 발생하고, 솔레노이드 밸브의 제어압과 레귤레이터 밸브의 동작이 공진될 경우 라인압의 진폭이 불안정하거나 라인압의 제어가 불가능하게 된다.However, the above-described line pressure control system has a disadvantage in that, when the malfunction of the regulator valve and the control pressure of the solenoid valve are unstable, the shift ratio is unstable due to the instability of the pulley due to the instability of the line pressure. In particular, when the regulator valve itself is unstable, low frequency vibration occurs, and when the control pressure of the solenoid valve and the operation of the regulator valve are resonant, the amplitude of the line pressure becomes unstable or the control of the line pressure becomes impossible.
따라서 본 고안은 상기와 같은 문제점들을 해소하기 위하여 안출된 것으로서, 본 고안의 목적은 라인압의 불안정에 따른 변속비의 불안정을 방지하는 라인압 조절 시스템을 제공하는 데 있다.Therefore, the present invention is devised to solve the above problems, an object of the present invention is to provide a line pressure control system for preventing the instability of the transmission ratio due to the instability of the line pressure.
도 1은 본 고안에 따른 라인압 조절 시스템의 구성도이다.1 is a block diagram of a line pressure control system according to the present invention.
도 2는 본 고안에 따른 라인압 조절 시스템에 적용된 오리피스 밸브의 작동 상태도이다.2 is an operational state diagram of the orifice valve applied to the line pressure control system according to the present invention.
도 3은 종래기술에 따른 라인압 조절 시스템의 구성도이다.3 is a block diagram of a line pressure control system according to the prior art.
<도면의 주요 부분에 대한 부호의 설명><Explanation of symbols for the main parts of the drawings>
1:솔레노이드 밸브, 3:레귤레이터 밸브, 5:오리피스 밸브, 7:어큐뮬레이터, 9:제어압 관로, 11:오일펌프, 13:탄성부재, 15:라인압 관로1: solenoid valve, 3: regulator valve, 5: orifice valve, 7: accumulator, 9: control pressure line, 11: oil pump, 13: elastic member, 15: line pressure line
이를 실현하기 위하여 본 고안에 따른 라인압 조절 시스템은, 솔레노이드 밸브의 제어압과 탄성부재 탄성력의 합력 및 이 합력에 대항하는 라인압에 의하여 오일펌프로부터 공급되는 유압을 라인압으로 제어하는 레귤레이터 밸브를 포함하며,In order to realize this, the line pressure control system according to the present invention is a regulator valve for controlling the hydraulic pressure supplied from the oil pump to the line pressure by the force of the control pressure of the solenoid valve and the elastic force of the elastic member and the line pressure against this force. Include,
상기 솔레노이드 밸브에서 레귤레이터 밸브로 제어압을 공급하는 제어압 관로에 오리피스 밸브와 어큐뮬레이터를 설치하여, 레귤레이터 밸브의 배압 해제 특성을 빠르게 하고 제어압 작용을 지연시키며, 레귤레이터 밸브 공진시 배압이 공진하는 것을 방지하도록 구성됨에 특징이 있다.An orifice valve and an accumulator are installed in a control pressure line for supplying control pressure from the solenoid valve to the regulator valve, thereby speeding up the back pressure release characteristic of the regulator valve, delaying the control pressure action, and preventing back pressure from resonating when the regulator valve resonates. It is characterized in that it is configured to.
이하 본 고안의 바람직한 실시예를 첨부한 도면에 의거하여 보다 상세히 설명한다.BEST MODE Hereinafter, preferred embodiments of the present invention will be described in detail with reference to the accompanying drawings.
도 1은 본 고안에 따른 라인압 조절 시스템의 구성도로서, 솔레노이드 밸브(1), 레귤레이터 밸브(3), 오리피스 밸브(5), 그리고 어큐뮬레이터(7)를 포함하여 구성되어 있다.1 is a configuration diagram of a line pressure regulating system according to the present invention, and includes a solenoid valve 1, a regulator valve 3, an orifice valve 5, and an accumulator 7.
솔레노이드 밸브(1)는 일측으로 공급되는 유압을 제어압으로 듀티 제어하여 제어압 관로(9)로 공급하도록 구성 및 연결되어 있다.The solenoid valve 1 is configured and connected to duty-control the hydraulic pressure supplied to one side to the control pressure line 9 by duty control by the control pressure.
레귤레이터 밸브(3)는 오일펌프(11)에 의하여 공급되는 유압을 라인압으로 제어하도록 구성 및 연결되어 있다. 즉, 레귤레이터 밸브(3)는 제어압 관로(9)로 공급되는 솔레노이드 밸브(1)의 제어압과 탄성부재(13) 탄성력의 합력이 그 일측에 작용하고 이의 대항측에 라인압 관로(15)로 공급되는 라인압이 작용하여, 상기 합력과 라인압의 균형으로 라인압을 제어도록 구성되어 있다.The regulator valve 3 is configured and connected to control the hydraulic pressure supplied by the oil pump 11 to line pressure. That is, the regulator valve 3 has a force of the control pressure of the solenoid valve 1 supplied to the control pressure line 9 and the elastic force of the elastic member 13 acting on one side thereof and the line pressure line 15 on the opposite side thereof. The line pressure supplied to the structure acts to control the line pressure by balancing the force and the line pressure.
오리피스 밸브(5)는 제어압 관로(9)에 설치되어, 도 2에 도시된 바와 같이, 레귤레이터 밸브(3)의 배압 해제 특성을 빠르게 하고(a) 제어압 작용을 지연시키도록(b) 구성되어 있다.The orifice valve 5 is installed in the control pressure line 9 and configured to speed up the back pressure release characteristic of the regulator valve 3 and delay the control pressure action, as shown in FIG. 2 (b). It is.
그리고 어큐뮬레이터(7)는 레귤레이터 밸브(3)가 공진할 때, 레귤레이터 밸브(3)의 배압이 공진하는 것을 방지하도록 제어압 관로(9)에 설치되어 있다.The accumulator 7 is provided in the control pressure line 9 to prevent the back pressure of the regulator valve 3 from resonating when the regulator valve 3 resonates.
상술한 바와 같이 구성된 라인압 제어 시스템의 작용은 다음과 같다.The operation of the line pressure control system configured as described above is as follows.
오일펌프(11)에서 발생된 유압은 레귤레이터 밸브(3)로 공급된다. 이렇게 공급되는 유압은 레귤레이터 밸브(3)에 의하여 일부 배출되면서 라인압으로 제어된다. 이렇게 제어된 라인압은 라인압 관로(15)에 이어지는 여러 경로를 경유하여 구동 및 피동 풀리(미도시)의 유압실(미도시) 등으로 공급된다.The hydraulic pressure generated in the oil pump 11 is supplied to the regulator valve 3. The hydraulic pressure supplied in this way is partially discharged by the regulator valve 3 and controlled by the line pressure. The line pressure thus controlled is supplied to a hydraulic chamber (not shown) of the driving and driven pulley (not shown) via various paths leading to the line pressure line 15.
한편 상기 라인압은 솔레노이드 밸브(1)로 공급된다. 이 라인압은 솔레노이드 밸브(1)의 듀티 제어에 의하여 제어압으로 조절된다. 이 제어압은 탄성부재(13)와 함께 레귤레이터 밸브(3)의 일측에 작용하여 이의 대항측에 작용하는 라인압과 힘의 균형을 이루게 된다.On the other hand, the line pressure is supplied to the solenoid valve (1). This line pressure is adjusted to the control pressure by the duty control of the solenoid valve 1. This control pressure acts on one side of the regulator valve 3 together with the elastic member 13 to balance the line pressure and force acting on the opposite side thereof.
이와 같이 제어압이 공급될 때, 오리피스 밸브(5)는 도 2의 b와 같이 작동되어 제어압을 서서히 공급하고, 제어압이 배출될(배압) 때에는 a와 같이 작동되어 제어압을 신속하게 배출시킨다.When the control pressure is supplied in this way, the orifice valve 5 is operated as in b of FIG. 2 to gradually supply the control pressure, and when the control pressure is discharged (back pressure), it is operated as a to quickly discharge the control pressure. Let's do it.
또한 어큘뮬레이터(7)는 레귤레이터 밸브(3)가 공진할 때, 제어압의 배출(배압)이 공진하는 것을 방지한다.The accumulator 7 also prevents the discharge of the control pressure (back pressure) from resonating when the regulator valve 3 resonates.
상술한 바와 같이 본 고안에 따른 라인압 제어 시스템은 오리피스 밸브와 어큐뮬레이터를 솔레노이드 밸브에서 레귤레이터 밸브로 공급하는 제어압 관로에 설치하므로, 레귤레이터 밸브의 배압 해제 특성을 빠르게 하고 제어압 작용을 지연시키며, 레귤레이터 밸브 공진시 배압이 공진하는 것을 방지하여 라인압을 안정시킬 수 있다. 또한 변속비를 안정시킬 수 있다.As described above, the line pressure control system according to the present invention is installed in the control pressure line for supplying the orifice valve and the accumulator from the solenoid valve to the regulator valve, thereby speeding up the back pressure release characteristic of the regulator valve, delaying the control pressure action, and It is possible to stabilize the line pressure by preventing the back pressure from resonating during valve resonance. In addition, the speed ratio can be stabilized.
Claims (2)
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| KR2019990005694U KR200256532Y1 (en) | 1999-04-08 | 1999-04-08 | Hydraulic system stablizing line pressure |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| KR2019990005694U KR200256532Y1 (en) | 1999-04-08 | 1999-04-08 | Hydraulic system stablizing line pressure |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| KR20000019270U true KR20000019270U (en) | 2000-11-06 |
| KR200256532Y1 KR200256532Y1 (en) | 2001-12-24 |
Family
ID=54761394
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| KR2019990005694U KR200256532Y1 (en) | 1999-04-08 | 1999-04-08 | Hydraulic system stablizing line pressure |
Country Status (1)
| Country | Link |
|---|---|
| KR (1) | KR200256532Y1 (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR100461751B1 (en) * | 2002-11-06 | 2004-12-14 | 현대자동차주식회사 | Line pressure controlling regulator valve |
| KR100901579B1 (en) * | 2007-05-23 | 2009-06-08 | 현대자동차주식회사 | Accumulator for line pressure |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR101055663B1 (en) * | 2009-08-25 | 2011-08-09 | 국방과학연구소 | Hydraulic system for driving and locking rear panel of launch pad |
-
1999
- 1999-04-08 KR KR2019990005694U patent/KR200256532Y1/en not_active IP Right Cessation
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR100461751B1 (en) * | 2002-11-06 | 2004-12-14 | 현대자동차주식회사 | Line pressure controlling regulator valve |
| KR100901579B1 (en) * | 2007-05-23 | 2009-06-08 | 현대자동차주식회사 | Accumulator for line pressure |
Also Published As
| Publication number | Publication date |
|---|---|
| KR200256532Y1 (en) | 2001-12-24 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| KR101216843B1 (en) | Method for Operating a Continuously Variable Transmission | |
| KR20020053341A (en) | Line pressure control system for at | |
| KR101918379B1 (en) | Control device for continuously variable transmission | |
| KR200256532Y1 (en) | Hydraulic system stablizing line pressure | |
| US6739998B2 (en) | Hydraulic controller for an automatic transmission | |
| KR100461751B1 (en) | Line pressure controlling regulator valve | |
| JP2001317442A (en) | Capacity control device of variable displacement hydraulic motor | |
| KR100369056B1 (en) | Apparatus for enlargement control pressure of clutch using oil hammer appearance | |
| KR100369191B1 (en) | Line pressure control system for at | |
| KR100369190B1 (en) | Shift ratio control system for cvt | |
| JP3205950B2 (en) | Hydraulic control device for hydraulically operated transmission for vehicle | |
| JPH0551947A (en) | Actuator controller for construction machine | |
| KR100471288B1 (en) | Hydraulic controlling system and method for an automatic transmission | |
| JP2906691B2 (en) | Line pressure control device for continuously variable transmission | |
| KR100552760B1 (en) | hydraulic control system for automatic transmission | |
| JP3104518B2 (en) | Line pressure control device for automatic transmission | |
| KR20020030885A (en) | Hydraulic control system for automatic transmission | |
| KR100373052B1 (en) | Shift ratio control system for cvt | |
| JPH05272462A (en) | Flow control device for pump | |
| KR100354028B1 (en) | Hydraulic control system of continuously variable transmission for vehicles | |
| KR100535404B1 (en) | Hydraulic circuit of continuously variable transmission | |
| KR20040045065A (en) | Hydraulic control system for controling line pressure and clutch pressure | |
| JP2004308899A (en) | Hydraulic control device | |
| JPH09112685A (en) | Lockup control device of automatic transmission | |
| KR100727688B1 (en) | Regulator valve of automatic transmission |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| A201 | Request for examination | ||
| E902 | Notification of reason for refusal | ||
| E701 | Decision to grant or registration of patent right | ||
| REGI | Registration of establishment | ||
| FPAY | Annual fee payment |
Payment date: 20051031 Year of fee payment: 5 |
|
| LAPS | Lapse due to unpaid annual fee |