KR19990059757A - Line pressure regulator for automatic transmission - Google Patents
Line pressure regulator for automatic transmission Download PDFInfo
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- KR19990059757A KR19990059757A KR1019970079971A KR19970079971A KR19990059757A KR 19990059757 A KR19990059757 A KR 19990059757A KR 1019970079971 A KR1019970079971 A KR 1019970079971A KR 19970079971 A KR19970079971 A KR 19970079971A KR 19990059757 A KR19990059757 A KR 19990059757A
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- Prior art keywords
- valve
- port
- land
- pressure
- line pressure
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Classifications
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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
- F16H61/0003—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
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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
- F16H61/02—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
- F16H61/0262—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 the signals being hydraulic
- F16H61/0265—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 the signals being hydraulic for gearshift control, e.g. control functions for performing shifting or generation of shift signals
- F16H61/0267—Layout of hydraulic control circuits, e.g. arrangement of valves
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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
- F16H61/02—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
- F16H61/0262—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 the signals being hydraulic
- F16H61/0276—Elements specially adapted for hydraulic control units, e.g. valves
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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
- F16H57/00—General details of gearing
- F16H57/02—Gearboxes; Mounting gearing therein
- F16H2057/02039—Gearboxes for particular applications
- F16H2057/02043—Gearboxes for particular applications for vehicle transmissions
- F16H2057/02047—Automatic transmissions
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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
- F16H61/02—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
- F16H61/0202—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 the signals being electric
- F16H61/0251—Elements specially adapted for electric control units, e.g. valves for converting electrical signals to fluid signals
- F16H2061/026—On-off solenoid valve
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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
- F16H61/02—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
- F16H61/0262—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 the signals being hydraulic
- F16H61/0276—Elements specially adapted for hydraulic control units, e.g. valves
- F16H2061/0279—Details of hydraulic valves, e.g. lands, ports, spools or springs
Landscapes
- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Control Of Transmission Device (AREA)
Abstract
본 발명의 목적은 구조를 단순화시키면서, 차량의 운행 상황에 최적으로 상태로 라인압을 제어하여 연비를 향상시키는 자동변속기용 라인압 조절장치를 제공한다.SUMMARY OF THE INVENTION An object of the present invention is to provide a line pressure regulating device for an automatic transmission, which simplifies a structure and improves fuel efficiency by controlling the line pressure at a state optimal for a driving situation of a vehicle.
본 발명에 따른 자동변속기용 라인압 조절장치는 오일펌프에서 발생되는 유압을 공급받아 각 레인지에 상응하는 라인압으로 제어하는 레귤레이터 밸브;Line pressure regulating device for an automatic transmission according to the present invention receives a hydraulic pressure generated from the oil pump regulator regulator for controlling the line pressure corresponding to each range;
상기 레귤레이터 밸브가 상기와 같이 작용하도록 레귤레이터 밸브에서 라인압을 공급받아 그 라인압을 레귤레이터 밸브의 일측에 작용시키도록 레귤레이터 밸브의 일측에 관로들로 연결되는 매뉴얼 밸브;A manual valve connected with conduits to one side of the regulator valve to receive the line pressure from the regulator valve so that the regulator valve acts as described above and act on the one side of the regulator valve;
상기 라인압을 공급받은 리듀싱 밸브가 리듀싱압으로 제어한 리듀싱압을 매뉴얼 밸브에서 레귤레이터 밸브에 작용시키는 대향측 레귤레이터 밸브에 작용시키도록 연결되어 트랜스밋션 제어유닛(TCU)에 의하여 제어되는 솔레노이드 밸브를 포함하여 구성된다.The reducing valve supplied with the line pressure is connected to operate the reducing pressure controlled by the reducing pressure to the opposite side regulator valve acting on the regulator valve in the manual valve to control the solenoid valve controlled by the transmission control unit (TCU). It is configured to include.
Description
본 발명은 자동변속기용 유압 제어 시스템에 관한 것으로서, 보다 상세하게는 연비 향상을 위하여 저스로틀 개도시 라인압을 저하시키는 자동변속기용 라인압 조절장치에 관한 것이다.The present invention relates to a hydraulic control system for an automatic transmission, and more particularly, to a line pressure regulating device for an automatic transmission for reducing the low throttle opening line pressure for improving fuel efficiency.
일반적으로 자동변속기용 유압 제어 시스템은 오일펌프에서 발생된 유압을 일정한 압력 진폭을 갖는 라인압으로 조절하는 라인압 조절장치를 구비한다.In general, the hydraulic control system for an automatic transmission is provided with a line pressure control device for adjusting the hydraulic pressure generated in the oil pump to a line pressure having a constant pressure amplitude.
이러한 자동변속기용 라인압 조절장치는 그 사양에 따라 다양하게 구성될 수 있으며, 일반적으로 레귤레이터 밸브로 구성된다.Such a line pressure regulator for an automatic transmission can be configured in various ways according to its specifications, and generally consists of a regulator valve.
즉, 이 레귤레이터 밸브는 매뉴얼 밸브로부터 각 레인지에 따라 공급되는 유압에 의하여 제어되어 오일펌프로 공급되는 유압을 라인압으로 제어하는 것; 매뉴얼 밸브에서 공급되는 유압과 하이-로우 밸브를 적용하여 특정 변속단에서 공급되는 유압에 의하여 제어되어 오일펌프로 공급되는 유압을 라인압으로 제어하는 것; 매뉴얼 밸브에서 공급되는 유압과 댐퍼 클러치를 제어하는 솔레노이드 밸브에서 공급되는 유압에 의하여 제어되는 것 등이 있다.That is, the regulator valve is controlled by the hydraulic pressure supplied from the manual valve according to each range to control the hydraulic pressure supplied to the oil pump to the line pressure; Controlling the hydraulic pressure supplied to the oil pump to the line pressure by controlling the hydraulic pressure supplied from the manual valve and the high-low valve supplied from the specific gear stage; Controlled by the hydraulic pressure supplied from the manual valve and the hydraulic pressure supplied from the solenoid valve for controlling the damper clutch.
그러나 상기와 같은 자동변속기용 라인압 조절장치에서 전자는 D레이진 전영역에서 일정한 라인압을 공급하기 때문에 차량의 운행 상황에 적절히 대응하지 못하고;However, in the above-described line pressure regulating device for an automatic transmission, the electrons supply a constant line pressure in the entire area of the D laziness, and thus do not correspond appropriately to the driving situation of the vehicle;
중자는 하이-로우 밸브를 사용하기 때문에 구조가 복잡해질 뿐만 아니라, 특정 변속단에서만 라인압을 저하시키기 때문에 그 변속단 또는 다른 변속단에서 차량의 운행 상황에 최적의 상태로 라인압을 제어하는 데는 한계가 있으며,Since the middle uses high-low valves, not only is the structure complicated, but also the line pressure is reduced only at a certain shift stage, so that the line pressure is optimally controlled at the shift stage or other shift stages for the vehicle operating conditions. There is a limit,
후자는 댐퍼 클러치의 작동 및 비작동 영역에 따라 라인압을 제어하기 때문에 이 또한 차량의 운행 상황에 최적의 상태로 라인압을 제어하기 곤란한 단점이 있다.The latter has a disadvantage in that it is difficult to control the line pressure in an optimal state for the driving situation of the vehicle because the latter controls the line pressure according to the operation and non-operation area of the damper clutch.
따라서 본 발명은 상기와 같은 단점을 해소하기 위하여 창출된 것으로서, 본 발명의 목적은 구조를 단순화시키면서, 차량의 운행 상황에 최적으로 상태로 라인압을 제어하여 연비를 향상시키는 자동변속기용 라인압 조절장치를 제공한다.Therefore, the present invention was created to solve the above disadvantages, the object of the present invention is to simplify the structure, the line pressure control for the automatic transmission to improve the fuel efficiency by controlling the line pressure to the optimal state for the driving situation of the vehicle. Provide the device.
도 1은 본 발명에 관련하는 자동변속기용 라인압 조절장치가 적용되는 유압 제어 시스템의 부분 유압 회로도이다.1 is a partial hydraulic circuit diagram of a hydraulic control system to which a line pressure regulating device for an automatic transmission according to the present invention is applied.
도 2는 본 발명에 관련하는 자동변속기용 라인압 조절장치의 솔레노이드 밸브가 오프 제어된 상태를 도시한 부분 유압 회로도이다.2 is a partial hydraulic circuit diagram showing a state in which the solenoid valve of the line pressure regulating device for an automatic transmission according to the present invention is turned off.
도 3은 본 발명에 관련하는 자동변속기용 라인압 조절장치의 솔레노이드 밸브가 온 제어된 상태를 도시한 부분 유압 회로도이다.3 is a partial hydraulic circuit diagram illustrating a state where the solenoid valve of the line pressure regulating device for an automatic transmission according to the present invention is turned on.
<도면의 주요 부분에 대한 부호의 설명><Explanation of symbols for the main parts of the drawings>
1:레귤레이터 밸브 3:오일펌프 17:매뉴얼 밸브 27,29,31,33,35,37:제1,2,3,4,5,6포트 41:밸브스풀 45,47,49,51,53,55:제1,2,3,4,5,6랜드 S:솔레노이드 밸브1: regulator valve 3: oil pump 17: manual valve 27, 29, 31, 33, 35, 37: 1st, 2, 3, 4, 5, 6 port 41: valve spool 45, 47, 49, 51, 53 55: 1, 2, 3, 4, 5, 6 Land S: Solenoid Valve
이를 실현하기 위하여 본 발명에 따른 자동변속기용 라인압 조절장치는 오일펌프에서 발생되는 유압을 공급받아 각 레인지에 상응하는 라인압으로 제어하는 레귤레이터 밸브;In order to realize this, the line pressure regulating device for an automatic transmission according to the present invention receives a hydraulic pressure generated from the oil pump regulator regulator for controlling the line pressure corresponding to each range;
상기 레귤레이터 밸브가 상기와 같이 작용하도록 레귤레이터 밸브에서 라인압을 공급받아 그 라인압을 레귤레이터 밸브의 일측에 작용시키도록 레귤레이터 밸브의 일측에 관로들로 연결되는 매뉴얼 밸브;A manual valve connected with conduits to one side of the regulator valve to receive the line pressure from the regulator valve so that the regulator valve acts as described above and act on the one side of the regulator valve;
상기 라인압을 공급받은 리듀싱 밸브가 리듀싱압으로 제어한 리듀싱압을 매뉴얼 밸브에서 레귤레이터 밸브에 작용시키는 대향측 레귤레이터 밸브에 작용시키도록 연결되어 트랜스밋션 제어유닛(TCU)에 의하여 제어되는 솔레노이드 밸브를 포함한다.The reducing valve supplied with the line pressure is connected to operate the reducing pressure controlled by the reducing pressure to the opposite side regulator valve acting on the regulator valve in the manual valve to control the solenoid valve controlled by the transmission control unit (TCU). Include.
상술한 바와 같이 구성되는 자동변속기용 라인압 조절장치는 트랜스밋션 제어유닛(TCU)이 스로틀 개도로 차량의 운행 상황을 판단하여 이에 적절하도록 솔레노이드 밸브를 제어하여 레귤레이터 밸브가 그에 상응하는 라인압을 조절케 한다.The line pressure regulating device for an automatic transmission configured as described above has a transmission control unit (TCU) that determines the driving situation of the vehicle at the throttle opening and controls the solenoid valve so that the regulator valve adjusts the corresponding line pressure accordingly. Make it.
이하 본 발명의 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 발명에 관련하는 자동변속기용 라인압 조절장치가 적용되는 유압 제어 시스템의 부분 유압 회로도로서, 차량의 운행 상황, 즉 스로틀 개도에 따라 라인압을 조절할 수 있도록 구성된다.1 is a partial hydraulic circuit diagram of a hydraulic control system to which the line pressure regulating device for an automatic transmission according to the present invention is applied, and is configured to adjust the line pressure according to a driving situation of a vehicle, that is, a throttle opening degree.
즉, 레귤레이터 밸브(1)는 오일펌프(3)에 관로(5)로 연결되어 이 관로(5)로 공급되는 유압의 배출량을 제어하여 각 레인지에 상응하도록 일정한 압력 진폭을 갖는 라인압으로 제어하도록 구성 및 연결된다.That is, the regulator valve 1 is connected to the oil pump 3 by the conduit 5 to control the discharge of the hydraulic pressure supplied to the conduit 5 so as to control the line pressure having a constant pressure amplitude corresponding to each range. Are configured and connected.
이와 동시에 레귤레이터 밸브(1)은 상기 유압 중, 일부를 토오크 컨버터 컨트롤 밸브(7), 댐퍼 클러치 컨트롤 밸브(9)로 공급하여, 이에 연결되는 토오크 컨버터(11)를 비롯한 변속기 윤활부(13,15)로 유압을 공급할 수 있도록 유압 회로를 구성한다.At the same time, the regulator valve 1 supplies a part of the hydraulic pressure to the torque converter control valve 7 and the damper clutch control valve 9, and the transmission lubrication parts 13 and 15 including the torque converter 11 connected thereto. The hydraulic circuit is configured to supply hydraulic pressure.
그리고 상기 관로(5)는 매뉴얼 밸브(17)에 연결되며, 이 매뉴얼 밸브(17)는 레귤레이터 밸브(1)가 상기와 같이 작용하도록 상기 관로(5)로 라인압을 공급받아 그 라인압을 레귤레이터 밸브(1)의 일측에 D,R레인지시 각각 작용시키도록 관로(19,21)로 연결된다.The pipeline 5 is connected to the manual valve 17, and the manual valve 17 receives a line pressure to the pipeline 5 so that the regulator valve 1 functions as described above, and regulates the line pressure. One side of the valve (1) is connected to the conduit (19, 21) to act in the D, R range respectively.
또 관로(5)는 리듀싱 밸브(23)에 연결되며, 이 리듀싱 밸브(23)는 라인압을 공급받아 리듀싱압으로 제어하여 레귤레이터 밸브(1)의 다른 일측에 작용시킬 수 있도록 관로(25)로 연결된다.In addition, the conduit 5 is connected to the reducing valve 23, and the reducing valve 23 receives the line pressure and controls the reducing pressure so that the conduit 25 can act on the other side of the regulator valve 1 ).
이 관로(25)상에는 트랜스밋션 제어유닛(TCU)에 의하여 제어되는 솔레노이드 밸브(S)가 설치되며, 이 솔레노이드 밸브(S)는 관로(19,21)로 공급되는 유압에 저항하는 작용을 하도록 유압 회로를 형성한다.The solenoid valve S controlled by the transmission control unit (TCU) is installed on the pipeline 25, and the solenoid valve S is hydraulically operated to resist the hydraulic pressure supplied to the pipelines 19 and 21. Form a circuit.
한편 상기 레귤레이터 밸브(1)는 제1,2,3,4,5,6포트(27,29,31,33,35,37)와 이들을 제어하도록 탄성부재(39)를 개재한 밸브스풀(41)을 구비한다.Meanwhile, the regulator valve 1 includes first, second, third, fourth, fifth, and sixth ports 27, 29, 31, 33, 35, and 37 and a valve spool 41 through the elastic member 39 to control them. ).
상기 제1포트(27)는 오일펌프(3)로부터 유압을 공급받고 제어된 라인압을 매뉴얼 밸브(17)네 공급하도록 상기 관로(5)에 연결되고, 제2포트(29)는 제1포트(27)로 공급되는 유압을 압력 제어하여 일정 압력 이상의 오일을 오일펌프(3)로 리턴시키도록 관로(43)에 연결되며, 제3포트(31)는 제1포트(27)로 공급되는 유압 중 제2포트(29)로 리턴되고 남은 나머지 일부 유압을 토오크 컨버터(11)를 비롯한 변속기 윤활부(13,15)로 공급하도록 연결된다.The first port 27 is connected to the conduit 5 to receive hydraulic pressure from the oil pump 3 and to supply a controlled line pressure to the manual valve 17. The second port 29 is connected to the first port. Pressure control the hydraulic pressure supplied to the (27) is connected to the conduit 43 to return the oil of a predetermined pressure or more to the oil pump (3), the third port 31 is the hydraulic pressure supplied to the first port (27) It is connected to supply the remaining partial hydraulic pressure returned to the second port 29 of the transmission to the transmission lubrication unit (13, 15), including the torque converter (11).
그리고 제4,5포트(33,35)는 제1포트(27)를 상기 제2,3포트(29,31)에 상기와 같이 연통시키도록 매뉴얼 밸브(17)에서 D,R레인지시 각각 유압을 공급하도록 각각의 관로(19,21)에 연결되고, 제6포트(37)는 리듀싱 밸브(23)에 관로(25)로 연결되는 솔레노이드 밸브(S)가 운전 상황에 따라 제어하는 제어압이 제4,5포트(33,35)의 대향측에 작용하도록 연결된다.The fourth and fifth ports 33 and 35 respectively supply hydraulic pressure at the D and R ranges of the manual valve 17 to communicate the first port 27 with the second and third ports 29 and 31 as described above. Control pressure controlled by the solenoid valve S connected to each of the conduits 19 and 21 so as to supply the gas, and the sixth port 37 is connected to the reducing valve 23 by the conduit 25. The fourth and fifth ports 33 and 35 are connected to act on opposite sides.
한편 밸브스풀(41)은 상기와 같은 제어를 가능케 하는 제1,2,3,4,5,6랜드(45,47,49,51,53,55)를 구비한다.On the other hand, the valve spool 41 has first, second, third, fourth, fifth and sixth lands 45, 47, 49, 51, 53, and 55 for enabling the above control.
상기 제1랜드(45)는 탄성부재(39)와 제6포트(37)로 공급되는 유압이 작용하는 유압 작용면을 갖고; 제2랜드(47)는 제1랜드(45)의 인접측에 이와 동일한 유압 작용면으로 형성되어, 제1랜드(45)와 함께 제3포트(31)와 이의 인접측에 형성된 배출포트(EX)의 연통을 단속하며; 제3랜드(49)는 제2랜드(47)의 인접측에 이와 동일한 유압 작용면으로 형성되어, 제2랜드(47)와 함께 제1,3포트(27,31)의 연통을 단속하도록 구성된다.The first land (45) has a hydraulic action surface on which hydraulic pressure supplied to the elastic member (39) and the sixth port (37) acts; The second land 47 is formed with the same hydraulically acting surface on the adjacent side of the first land 45, and the discharge port EX formed on the third port 31 and its adjacent side together with the first land 45. To control communication; The third land 49 is formed on the adjacent side of the second land 47 with the same hydraulic action surface, and is configured to interrupt the communication between the first and third ports 27 and 31 together with the second land 47. do.
그리고 제4랜드(51)는 제3랜드(49)의 인접측에 이와 동일한 유압 작용면으로 형성되어, 제3랜드(49)와 함께 제1,2포트(27,29)의 연통을 단속하며; 제5랜드(53)는 제4랜드(51)의 인접측에 이보다 작은 유압 작용면으로 형성되어, 제5포트(35)로 공급되는 유압이 작용하고, 제6랜드(55)는 제5랜드(53)의 인접측에 이보다 작은 유압 작용면으로 형성되어, 제4포트(33)로 공급되는 유압이 작용하도록 각각 구성된다.In addition, the fourth land 51 is formed on the side of the third land 49 adjacent to the same hydraulically actuated surface, and controls the communication between the first and second ports 27 and 29 together with the third land 49. ; The fifth land 53 is formed with a smaller hydraulic action surface on the adjacent side of the fourth land 51 so that the hydraulic pressure supplied to the fifth port 35 acts, and the sixth land 55 is the fifth land. It is formed by the smaller hydraulic action surface on the adjacent side of 53, and is comprised so that the hydraulic pressure supplied to the 4th port 33 may act | work.
상술한 바와 같이 구성되는 자동변속기용 라인압 조절장치를 구비한 차량으로 전진 주행을 하면, 레귤레이터 밸브(1)는 오일펌프(3)로부터 공급되는 유압을 토오크 컨버터(11)를 비롯한 변속기 윤활부(13,145)로 공급함과 동시에, 라인압으로 제어하여 매뉴얼 밸브(17)로 공급한다.When the vehicle travels forward with a vehicle having a line pressure regulating device for an automatic transmission configured as described above, the regulator valve 1 transfers the hydraulic pressure supplied from the oil pump 3 to the transmission lubrication part including the torque converter 11 ( 13, 145, and at the same time control the line pressure to the manual valve (17).
이때 트랜스밋션 제어유닛(TCU)의 판단이 고압의 라인압이 필요하다고 판단하면, 즉, 스로틀 개도가 크다면, 트랜스밋션 제어유닛(TCU)은 도 2에 도시된 바와 같이, 솔레노이드 밸브(S)를 오프로 제어한다.At this time, if the determination of the transmission control unit (TCU) determines that a high-pressure line pressure is necessary, that is, if the throttle opening degree is large, the transmission control unit (TCU) is shown in Fig. 2, the solenoid valve (S). Control off.
따라서 레귤레이터 밸브(1)의 제4포트(33)에는 매뉴얼 밸브(17)로부터 공급되는 유압이 작용함에도 불구하고, 제6포트(37)에는 솔레노이드 밸브(S) 제어에 따른 리듀싱이 공급되어 이의 제1랜드(45)에 작용한다.Therefore, although the hydraulic pressure supplied from the manual valve 17 is applied to the fourth port 33 of the regulator valve 1, the sixth port 37 is supplied with reducing according to the control of the solenoid valve S, It acts on the first land 45.
따라서 이 밸브스풀(41)은 도면에서 보아 우측으로 이동되어 제3랜드(49)가 제1,2포트(27,29)의 연통을 착단시킨다.Therefore, the valve spool 41 is moved to the right as shown in the drawing so that the third land 49 starts to communicate the first and second ports 27 and 29.
결국, 관로(5)를 통하여 제1포트(27)로 공급되는 유압은 토오크 컨버터 컨트롤 밸브(7)로 일부 공급되고, 높은 압력을 유지하면서, 전량 매뉴얼 밸브(17)로 공급된다.As a result, the hydraulic pressure supplied to the first port 27 through the conduit 5 is partially supplied to the torque converter control valve 7, and is supplied to the manual valve 17 in the total amount while maintaining a high pressure.
그러나 트랜스밋션 제어유닛(TCU)의 판단이 저압의 라인압이 필요하다고 판단하면, 즉, 스로틀 개도가 작다면, 트랜스밋션 제어유닛(TCU)은 도 3에 도시된 바와 같이, 솔레노이드 밸브(S)를 온으로 제어한다.However, if the determination of the transmission control unit (TCU) determines that a low pressure line pressure is necessary, that is, if the throttle opening degree is small, the transmission control unit (TCU) is the solenoid valve (S), as shown in FIG. Control on.
따라서 레귤레이터 밸브(1)의 제4포트(33)에만 매뉴얼 밸브(17)로부터 공급되는 유압이 이의 제6랜드(55)에 작용한다.Therefore, the hydraulic pressure supplied from the manual valve 17 only to the fourth port 33 of the regulator valve 1 acts on its sixth land 55.
따라서 이 밸브스풀(41)은 도면에서 보아 좌측으로 이동되어 제3랜드(49)가 제1,2포트(27,29)를 상호 연통시킨다.Thus, the valve spool 41 is moved to the left as shown in the drawing so that the third land 49 communicates with the first and second ports 27 and 29.
결국, 관로(5)를 통하여 제1포트(27)로 공급되는 유압은 토오크 컨버터 컨트롤 밸브(7)로 일부 공급되고, 일부는 제2포트(29)에 연결된 관로(43)를 통하여 리턴된다.As a result, the hydraulic pressure supplied to the first port 27 through the conduit 5 is partially supplied to the torque converter control valve 7, and part is returned through the conduit 43 connected to the second port 29.
결과적으로 레귤레이터 밸브(1)의 제1포트(27)에 관로(5)로 연결된 매뉴얼 밸브(17)에는 낮은 압력의 라인압이 공급된다.As a result, a low pressure line pressure is supplied to the manual valve 17 connected to the first port 27 of the regulator valve 1 by way of a conduit 5.
아울러 본 실시예의 자동변속기용 라인압 조절장치는 트랜스밋션 제어유닛(TCU)이 솔레노이드 밸브(S)를 듀티 제어하면, 제1,2포트(27,29)의 연통을 가변시켜 라인압을 다양한 압력 범위로 제어할 수 있게 된다.In addition, the line pressure regulating device for an automatic transmission of the present embodiment, when the transmission control unit (TCU) duty control the solenoid valve (S), the communication between the first and second ports (27, 29) to vary the line pressure You can control the range.
상술한 바와 같이 본 발명에 따른 자동변속기용 라인압 조절장치는 트랜스밋션 제어유닛(TCU)이 스로틀 개도로 차량의 운행 상황을 판단하여 이에 적절하도록 솔레노이드 밸브를 제어하여, 레귤레이터 밸브가 그에 적절한 라인압을 조절케 하므로 본 방치의 구조를 단순화시키면서, 차량의 운행 상황에 최적으로 상태로 라인압을 제어할 수 있다. 따라서 본 발명은 라인압원을 공급하는 오일펌프에 소모되는 동력을 저감시켜 연비를 향상시킬 수 있다.As described above, the line pressure regulating device for an automatic transmission according to the present invention controls the solenoid valve so that the transmission control unit (TCU) determines the driving situation of the vehicle with the throttle opening degree, and the regulator valve adjusts the appropriate line pressure thereto. Since it is possible to simplify the structure of the device, it is possible to control the line pressure in an optimal state for the driving situation of the vehicle. Therefore, the present invention can improve the fuel efficiency by reducing the power consumed by the oil pump for supplying the line pressure source.
Claims (2)
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| KR1019970079971A KR100285489B1 (en) | 1997-12-31 | 1997-12-31 | Device for controlling line pressure of automatic transmission |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| KR1019970079971A KR100285489B1 (en) | 1997-12-31 | 1997-12-31 | Device for controlling line pressure of automatic transmission |
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| Publication Number | Publication Date |
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| KR19990059757A true KR19990059757A (en) | 1999-07-26 |
| KR100285489B1 KR100285489B1 (en) | 2001-06-01 |
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| Application Number | Title | Priority Date | Filing Date |
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| KR1019970079971A KR100285489B1 (en) | 1997-12-31 | 1997-12-31 | Device for controlling line pressure of automatic transmission |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR100460889B1 (en) * | 2002-08-12 | 2004-12-09 | 현대자동차주식회사 | Apparatus for controlling line pressure for hydraulic control system in an automatic transmission |
| KR100488707B1 (en) * | 2002-10-09 | 2005-05-11 | 현대자동차주식회사 | Apparatus for controlling line pressure for hydraulic control system in an automatic transmission |
-
1997
- 1997-12-31 KR KR1019970079971A patent/KR100285489B1/en not_active IP Right Cessation
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR100460889B1 (en) * | 2002-08-12 | 2004-12-09 | 현대자동차주식회사 | Apparatus for controlling line pressure for hydraulic control system in an automatic transmission |
| KR100488707B1 (en) * | 2002-10-09 | 2005-05-11 | 현대자동차주식회사 | Apparatus for controlling line pressure for hydraulic control system in an automatic transmission |
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| Publication number | Publication date |
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| KR100285489B1 (en) | 2001-06-01 |
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