KR100598812B1 - Manual valve of automatic transmission - Google Patents

Manual valve of automatic transmission Download PDF

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KR100598812B1
KR100598812B1 KR1020050005413A KR20050005413A KR100598812B1 KR 100598812 B1 KR100598812 B1 KR 100598812B1 KR 1020050005413 A KR1020050005413 A KR 1020050005413A KR 20050005413 A KR20050005413 A KR 20050005413A KR 100598812 B1 KR100598812 B1 KR 100598812B1
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South Korea
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automatic transmission
shift
manual valve
flow path
range
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KR1020050005413A
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Korean (ko)
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이재신
이진희
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현대자동차주식회사
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    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16HGEARING
    • F16H61/00Control 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
    • F16H61/04Smoothing ratio shift
    • F16H61/06Smoothing ratio shift by controlling rate of change of fluid pressure
    • F16H61/065Smoothing ratio shift by controlling rate of change of fluid pressure using fluid control means
    • F16H61/068Smoothing ratio shift by controlling rate of change of fluid pressure using fluid control means using an orifice control valve
    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16HGEARING
    • F16H61/00Control 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
    • F16H61/04Smoothing ratio shift
    • F16H2061/0481Smoothing ratio shift during range shift from drive (D) or reverse (R) to neutral (N)

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  • Engineering & Computer Science (AREA)
  • General Engineering & Computer Science (AREA)
  • Physics & Mathematics (AREA)
  • Fluid Mechanics (AREA)
  • Mechanical Engineering (AREA)
  • Control Of Transmission Device (AREA)

Abstract

본 발명은 자동 변속 차량의 D->N 변속시 해제되는 변속 멤버의 해제시간을 제어하여 배출 유량 제어를 통해 스태틱 변속의 변속감을 개선할 수 있는 자동 변속기의 매뉴얼 밸브에 관한 것으로, 자동 변속기의 라인 압력 공급포트와 D레인지 및 N레인지에서의 유로를 형성하는 유로 포트들을 포함하며, 유로 포트들의 일측에 유압을 배출시키기 위한 복수개의 홈이 형성된 밸브 보디에 내장되어 D->N 변속시 N레인지에서 환형의 풀 포트에 모인 유량이 커넥터와 제1 랜드 사이에 형성되는 배출홈을 따라 안내되고, 배출홈의 측면에 형성되는 오리피스를 통해 배출 유로를 형성하며, D->N 변속시 해제되는 변속 멤버의 해제시간을 제어하도록 D->N 변속시 해제 충격을 감소시킨다.The present invention relates to a manual valve of an automatic transmission that can improve the shifting feeling of the static transmission through the discharge flow rate control by controlling the release time of the shift member released during the D-> N shift of the automatic transmission vehicle. It includes a pressure supply port and flow path ports forming flow paths in the D range and the N range, and are embedded in a valve body having a plurality of grooves for discharging hydraulic pressure on one side of the flow path ports, The flow rate collected in the annular pull port is guided along the discharge groove formed between the connector and the first land, and forms a discharge flow path through an orifice formed on the side of the discharge groove, and the shift member is released when the D-> N shift is performed. Reduces the release shock during D-> N shifting to control the release time.

자동 변속기, 매뉴얼 밸브, 오리피스Automatic transmission, manual valve, orifice

Description

자동 변속기의 매뉴얼 밸브{MANUAL VALVE OF AUTOMATIC TRANSMISSION}Manual valve of automatic transmission {MANUAL VALVE OF AUTOMATIC TRANSMISSION}

도 1은 본 발명의 실시예에 따른 자동 변속기의 매뉴얼 밸브 형상을 도시한 도면.1 is a view showing a manual valve shape of an automatic transmission according to an embodiment of the present invention.

도 2는 본 발명의 실시예에 따른 자동 변속기의 매뉴얼 밸브가 유압 회로도에 적용된 상태를 도시한 도면.2 is a view illustrating a state in which a manual valve of an automatic transmission according to an embodiment of the present invention is applied to a hydraulic circuit diagram.

※ 도면의 주요부분에 대한 부호의 설명※ Explanation of code for main part of drawing

112 ; 배출홈 114 ; 오리피스112; Discharge groove 114; Orifice

본 발명은 자동 변속기의 매뉴얼 밸브에 관한 것이다.The present invention relates to a manual valve of an automatic transmission.

통상적으로, 차량에 적용되는 자동 변속기는 차량의 주행 속도와 스로틀 밸브의 개도율 및 제반 검출 조건에 따라 변속 제어부(TCU)가 다수의 솔레노이드 밸브 구동을 제어하여 유압의 공급을 단속함으로써, 목표 변속단의 변속 기어가 동작되어 자동으로 변속이 이루어진다. In general, an automatic transmission applied to a vehicle is controlled by a shift control unit (TCU) controlling a plurality of solenoid valve driving according to the traveling speed of the vehicle, the opening ratio of the throttle valve, and various detection conditions, thereby controlling the supply of hydraulic pressure. The shifting gear is operated to shift automatically.

즉, 운전자가 변속 레버를 원하는 변속단으로 위치시키면, 매뉴얼 밸브의 포트 변환이 이루어지면서 오일 펌프로부터 공급되는 유압을 솔레노이드 밸브의 듀티 제어에 따라 해당되는 변속 기어 작동 요소를 구동시켜 변속이 이루어진다.That is, when the driver positions the shift lever to the desired shift stage, the shift of the manual valve is performed while the hydraulic pressure supplied from the oil pump is driven by driving the shift gear operating element according to the duty control of the solenoid valve.

그런데, 종래에는 D->N 변속시 해제되는 변속 멤버(MEMBER)의 해제시간을 제어하지 못하는 문제점이 있다.However, in the related art, there is a problem in that the release time of the shift member MEMBER which is released when D-> N is shifted cannot be controlled.

따라서, 배출 유량 제어가 곤란하고, 스태틱 변속의 변속감 튜닝이 곤란한 문제점이 있다.Therefore, there is a problem that the discharge flow rate control is difficult and the shifting feeling tuning of the static shift is difficult.

본 발명의 목적은 자동 변속 차량의 D->N 변속시 해제되는 변속 멤버의 해제시간을 제어하여 배출 유량 제어를 통해 스태틱 변속의 변속감을 개선할 수 있는 자동 변속기의 매뉴얼 밸브를 제공하는데 있다.An object of the present invention is to provide a manual valve of the automatic transmission that can improve the shifting feeling of the static shift through the discharge flow rate control by controlling the release time of the shift member released during the D-> N shift of the automatic transmission vehicle.

상기와 같은 목적을 달성하기 위하여 본 발명은 자동 변속기의 매뉴얼 밸브에 있어서, 상기 자동 변속기의 라인 압력 공급포트와 D레인지 및 N레인지에서의 유로를 형성하는 유로 포트들을 포함하며, 상기 유로 포트들의 일측에 유압을 배출시키기 위한 복수개의 홈이 형성된 밸브 보디에 내장되어 D->N 변속시 N레인지에서 환형의 풀 포트에 모인 유량이 커넥터와 제1 랜드 사이에 형성되는 배출홈을 따라 안내되고, 상기 배출홈의 측면에 형성되는 오리피스를 통해 배출 유로를 형성하며, D->N 변속시 해제되는 변속 멤버의 해제시간을 제어하도록 D->N 변속시 해제 충격을 감소시키는 것을 특징으로 한다.In order to achieve the above object, the present invention provides a manual valve of an automatic transmission, including a line pressure supply port of the automatic transmission and flow path ports forming a flow path in a D range and an N range, and one side of the flow path ports. The flow rate collected in the annular pull port in the N range is guided along the discharge groove formed between the connector and the first land in a valve body having a plurality of grooves for discharging hydraulic pressure in the N-range at the time of D-> N shifting. The discharge passage is formed through an orifice formed at the side of the discharge groove, and the release shock during the D-> N shift is reduced to control the release time of the shift member released during the D-> N shift.

이하 본 발명의 바람직한 실시예를 첨부한 도면을 참조하여 상세히 설명한다. 하기 설명 및 첨부 도면과 같은 많은 특정 상세들이 본 발명의 보다 전반적인 이해를 제공하기 위해 나타나 있으나, 이들 특정 상세들은 본 발명의 설명을 위해 예시한 것으로 본 발명이 그들에 한정됨을 의미하는 것은 아니다. 그리고 본 발명의 요지를 불필요하게 흐릴 수 있는 공지 기능 및 구성에 대한 상세한 설명은 생략한다.Hereinafter, exemplary embodiments of the present invention will be described in detail with reference to the accompanying drawings. While many specific details, such as the following description and the annexed drawings, are shown to provide a more general understanding of the invention, these specific details are illustrated for the purpose of explanation of the invention and are not meant to limit the invention thereto. And a detailed description of known functions and configurations that may unnecessarily obscure the subject matter of the present invention will be omitted.

도 1은 본 발명의 실시예에 따른 자동 변속기의 매뉴얼 밸브(110) 형상을 도시한 도면이며, 도 2는 본 발명의 실시예에 따른 자동 변속기의 매뉴얼 밸브(110)가 유압 회로도에 적용된 상태를 도시한 도면이다.1 is a view showing the shape of the manual valve 110 of the automatic transmission according to an embodiment of the present invention, Figure 2 is a state in which the manual valve 110 of the automatic transmission according to an embodiment of the present invention is applied to the hydraulic circuit diagram. Figure is shown.

본 발명의 실시예는 자동 변속기의 라인 압력 공급포트와 D레인지 및 N레인지에서의 유로를 형성하는 유로 포트들을 포함하며, 유로 포트들의 일측에 유압을 배출시키기 위한 복수개의 홈이 형성된 밸브 보디에 내장되어 D->N 변속시 N레인지에서 환형의 풀 포트에 모인 유량이 커넥터(100)와 제1 랜드(102) 사이에 형성되는 배출홈(112)의 따라 안내되며, 배출홈(112)의 측면에 형성되는 오리피스(114)를 통해 배출 유로를 형성하며, D->N 변속시 해제되는 변속 멤버의 해제시간을 제어하도록 D->N 변속시 해제 충격을 감소시킨다.An embodiment of the present invention includes a line pressure supply port of an automatic transmission and flow path ports forming a flow path at a D range and an N range, and are embedded in a valve body having a plurality of grooves for discharging hydraulic pressure at one side of the flow path ports. When the flow rate is D-> N, the flow rate collected at the annular pull port in the N range is guided along the discharge groove 112 formed between the connector 100 and the first land 102 and the side surface of the discharge groove 112. The discharge passage is formed through the orifice 114 formed at the lower portion, and the release shock is reduced during the D-> N shifting to control the release time of the shifting member released during the D-> N shifting.

상기한 바와 같이 본 발명의 실시예는 D->N 변속시 해제되는 변속 멤버(MEMBER)의 해제시간을 제어하지 못하는 문제를 해소하기 위해 매뉴얼 밸브(110)에 적절한 오리피스(114)를 설치하여 D->N 변속시 해제 충격을 감소시키는 것이다.As described above, according to the embodiment of the present invention, a proper orifice 114 is installed in the manual valve 110 to solve the problem of not controlling the release time of the shift member MEMBER which is released during the D-> N shift. -> To reduce the release shock when shifting N.

도 1에 도시된 바와 같이 매뉴얼 밸브(110)에 오리피스(114)를 설치하면 도 2에 도시된 바와 같이 D->N 제어시 자동 변속 유체(ATF) 배출은 매뉴얼 밸브(110)의 오리피스(114)에 따라 배출유량이 지배 받게된다.When the orifice 114 is installed in the manual valve 110 as shown in FIG. 1, the automatic transmission fluid (ATF) discharge during the D-> N control as shown in FIG. 2 is controlled by the orifice 114 of the manual valve 110. ), The discharge flow rate is controlled.

따라서 D->N 변속시 변속충격은 해제되는 변속 멤버의 해제시간을 적절히 조절하여 주면 원하는 수준에 맞출 수 있다.Therefore, the shift shock at the time of D-> N shift can be adjusted to the desired level by appropriately adjusting the release time of the shift member to be released.

또한, 변속 멤버의 해제시간은 자동 변속 유체(ATF)가 배출되는 시간에 지배를 받게 되고 배출시간은 오리피스(114)의 직경에 영향을 받게되어 D->N 변속시 원하는 변속감을 얻을 수 있다.In addition, the release time of the shift member is governed by the time at which the automatic transmission fluid (ATF) is discharged and the discharge time is influenced by the diameter of the orifice 114 to obtain the desired shift feeling at the D-> N shift.

그리고 본 기술은 도 2에서 압력 제어 밸브와 매뉴얼 밸브(110)를 적절히 조절함으로 온도에 따른 자동 변속 유체(ATF) 유량을 조절할 수 있으므로 극저온과 같은 상황등에도 대응이 가능하다.In addition, the present technology can control the automatic transmission fluid (ATF) flow rate according to the temperature by appropriately adjusting the pressure control valve and the manual valve 110 in FIG.

실시예로 극저온(약 -25도 이하)에서 자동 변속 유체(ATF)의 점성은 매우 높으므로 D->N 제어시 자동 변속 유체(ATF)의 배출시간이 너무 길어져서 중립단에서 클러치가 해제되지 않아 전진할 수 있는 위험이 있다.For example, the viscosity of the automatic transmission fluid (ATF) is very high at cryogenic temperatures (below about -25 degrees or less), so the discharge time of the automatic transmission fluid (ATF) becomes too long under D-> N control so that the clutch is not released at the neutral end. There is a risk of moving forward.

그러나 압력 제어 밸브-B를 왼쪽으로 이동시켜 자동 변속 유체(ATF)의 배출 유로를 매뉴얼 밸브(110)를 통하지 않고 압력 제어 밸브-B를 통해 바로 배출시키므로 어떤 온도 조건에 대해서도 대응이 가능하다.However, since the pressure control valve-B is moved to the left, the discharge flow path of the automatic transmission fluid (ATF) is discharged directly through the pressure control valve-B rather than through the manual valve 110, so that it is possible to cope with any temperature condition.

상술한 바와 같이 본 발명에 따른 자동 변속기의 매뉴얼 밸브는 자동 변속 차량의 D->N 변속시 해제되는 변속 멤버의 해제시간을 제어하도록 매뉴얼 밸브에 적절한 오리피스를 설치하여 D->N 변속시 해제 충격을 감소시킴에 따라 변속감 향상 및 운전성 향상의 효과가 있다.As described above, the manual valve of the automatic transmission according to the present invention installs an appropriate orifice in the manual valve to control the release time of the shift member released during the D-> N shift of the automatic transmission vehicle. As a result of the reduction of speed, the shifting speed and the driving performance are improved.

Claims (1)

자동 변속기의 매뉴얼 밸브에 있어서,In the manual valve of the automatic transmission, 상기 자동 변속기의 라인 압력 공급포트와 D레인지 및 N레인지에서의 유로를 형성하는 유로 포트들을 포함하며, 상기 유로 포트들의 일측에 유압을 배출시키기 위한 복수개의 홈이 형성된 밸브 보디에 내장되어 D->N 변속시 N레인지에서 환형의 풀 포트에 모인 유량이 커넥터와 제1 랜드 사이에 형성되는 배출홈을 따라 안내되고, 상기 배출홈의 측면에 형성되는 오리피스를 통해 배출 유로를 형성하며, A line pressure supply port of the automatic transmission and flow path ports forming flow paths in the D range and the N range, and are embedded in a valve body having a plurality of grooves for discharging hydraulic pressure on one side of the flow path ports. In the N shift, the flow rate collected in the annular full port in the N range is guided along the discharge groove formed between the connector and the first land, and forms a discharge flow path through an orifice formed on the side of the discharge groove, D->N 변속시 해제되는 변속 멤버의 해제시간을 제어하도록 D->N 변속시 해제 충격을 감소시키는 것을 특징으로 하는 자동 변속기의 매뉴얼 밸브.A manual valve of an automatic transmission, characterized in that to reduce the release shock during the D-> N shift to control the release time of the shift member released during the D-> N shift.
KR1020050005413A 2005-01-20 2005-01-20 Manual valve of automatic transmission KR100598812B1 (en)

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Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR101393819B1 (en) * 2012-07-02 2014-05-12 현대 파워텍 주식회사 Hydraulic control system for automatic transmission

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Publication number Priority date Publication date Assignee Title
JPH102415A (en) 1996-06-13 1998-01-06 Nissan Motor Co Ltd Flow control valve for automatic transmission
KR100376686B1 (en) 2000-07-13 2003-03-15 현대자동차주식회사 Regulating valve of hydraulic control system for automatic transmission
KR100376692B1 (en) 2000-12-30 2003-03-17 현대자동차주식회사 A manual valve in the hydraulic control system for automatic transmission in vehicles

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Publication number Priority date Publication date Assignee Title
JPH102415A (en) 1996-06-13 1998-01-06 Nissan Motor Co Ltd Flow control valve for automatic transmission
KR100376686B1 (en) 2000-07-13 2003-03-15 현대자동차주식회사 Regulating valve of hydraulic control system for automatic transmission
KR100376692B1 (en) 2000-12-30 2003-03-17 현대자동차주식회사 A manual valve in the hydraulic control system for automatic transmission in vehicles

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR101393819B1 (en) * 2012-07-02 2014-05-12 현대 파워텍 주식회사 Hydraulic control system for automatic transmission

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