KR102618300B1 - Hydraulic device for multi speed transmission - Google Patents

Hydraulic device for multi speed transmission Download PDF

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KR102618300B1
KR102618300B1 KR1020210113032A KR20210113032A KR102618300B1 KR 102618300 B1 KR102618300 B1 KR 102618300B1 KR 1020210113032 A KR1020210113032 A KR 1020210113032A KR 20210113032 A KR20210113032 A KR 20210113032A KR 102618300 B1 KR102618300 B1 KR 102618300B1
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unit
line pressure
pressure
valve unit
operating pressure
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KR1020210113032A
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KR20230030859A (en
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박상석
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현대트랜시스 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
    • 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
    • F16H61/0204—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 for gearshift control, e.g. control functions for performing shifting or generation of shift signal
    • F16H61/0206—Layout of electro-hydraulic control circuits, e.g. arrangement of 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
    • F16H61/0021—Generation or control of line 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
    • F16H61/02—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
    • F16H61/0204—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 for gearshift control, e.g. control functions for performing shifting or generation of shift signal
    • F16H61/0246—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 for gearshift control, e.g. control functions for performing shifting or generation of shift signal characterised by initiating reverse gearshift
    • 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
    • F16H61/0286—Manual 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
    • F16H61/02—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

Abstract

본 발명은 다단변속기용 유압장치에 관한 것으로서, 유압을 공급하는 공급부에 연결되고, 레버 조작에 따라 유압을 선택적으로 제공하는 매뉴얼밸브부와, 매뉴얼밸브부와 연결되어 R라인압을 안내하는 R라인압유로부와 D라인압을 안내하는 D라인압유로부를 구비하는 라인압유로부와, 라인압유로부와 연결되어 유압을 제어하는 조절밸브부와, 조절밸브부에 연결되고 R작동압을 안내하는 R작동압유로부와 D작동압을 안내하는 D작동압유로부를 구비하는 작동압유로부를 포함하여, 발진용 모터 크기를 줄일 수 있다.The present invention relates to a hydraulic device for a multi-speed transmission, which includes a manual valve unit connected to a supply unit that supplies hydraulic pressure and selectively provides hydraulic pressure according to lever operation, and an R line connected to the manual valve unit to guide R line pressure. A line pressure oil passage unit including a hydraulic oil passage unit and a D line pressure oil passage unit that guides the D line pressure, a control valve unit that is connected to the line pressure oil channel unit to control hydraulic pressure, and a control valve unit that is connected to the control valve unit and guides the R operating pressure. The size of the starting motor can be reduced by including an operating pressure passage section including an R operating pressure passage section that guides the D operating pressure and a D operating pressure passage section that guides the D operating pressure.

Figure R1020210113032
Figure R1020210113032

Description

다단변속기용 유압장치{HYDRAULIC DEVICE FOR MULTI SPEED TRANSMISSION}Hydraulic device for multi-speed transmission {HYDRAULIC DEVICE FOR MULTI SPEED TRANSMISSION}

본 발명은 다단변속기용 유압장치에 관한 것으로서, 보다 상세하게는 매뉴얼 R 위치에서 클러치 작동 유압은 D1으로 인가되도록 하고, 발진용 모터가 역구동되면 후진이 가능하여 모터 크기를 줄일 수 있는 다단변속기용 유압장치에 관한 것이다.The present invention relates to a hydraulic device for a multi-speed transmission, and more specifically, in the manual R position, the clutch operating hydraulic pressure is applied to D1, and when the starting motor is reverse driven, reverse is possible, thereby reducing the size of the motor. It's about hydraulics.

일반적으로 자동변속기는 클러치와 브레이크와 같은 마찰요소를 제어하여 목적하는 변속을 실시한다. 이러한 자동변속기에서 매뉴얼밸브는 R단 일 때 R단 라인압을 연결하고, N단 일 때 라인압을 차단하며, D단일 때 D단 라인압을 연결한다.In general, automatic transmissions perform desired shifting by controlling friction elements such as clutches and brakes. In this type of automatic transmission, the manual valve connects the R-stage line pressure when in R-range, blocks the line pressure when in N-range, and connects the D-stage line pressure when it is in D-range.

한편, 하이브리드나 전기 자동차에서 전동화 변속기를 구현할 때, 1단 기어비에 비해 R단 기어비가 작기 때문에 R단 발진 성능을 만족하도록 모터 사이즈가 커져서 탑재성 및 원가에 불리한 문제점이 있다. 따라서, 이를 개선할 필요성이 요청된다.Meanwhile, when implementing an electric transmission in a hybrid or electric vehicle, the R-stage gear ratio is smaller than the 1st-stage gear ratio, so the motor size is large to satisfy the R-stage start performance, which has disadvantages in mountability and cost. Therefore, there is a need to improve this.

본 발명의 배경기술은 대한민국 등록특허공보 제10-1575436호(2015.12.01 등록, 발명의 명칭 : 페일세이프 및 림프홈모드를 구현할 수 있는 다단변속기 유압회로)에 게시되어 있다.The background technology of the present invention is published in Republic of Korea Patent Publication No. 10-1575436 (registered on December 1, 2015, title of the invention: Multi-stage transmission hydraulic circuit capable of implementing fail-safe and limp home mode).

본 발명은 상기와 같은 문제점들을 개선하기 위해 안출된 것으로서, 매뉴얼 R 위치에서 클러치 작동 유압은 D1으로 인가되도록 하고, 발진용 모터가 역구동되면 후진이 가능하여 모터 크기를 줄일 수 있는 다단변속기용 유압장치를 제공하는데 그 목적이 있다.The present invention was devised to improve the above problems. In the manual R position, the clutch operating hydraulic pressure is applied to D1, and when the starting motor is reverse driven, reverse is possible, thereby reducing the size of the motor. The purpose is to provide a device.

본 발명에 따른 다단변속기용 유압장치는: 유압을 공급하는 공급부에 연결되고, 레버 조작에 따라 유압을 선택적으로 제공하는 매뉴얼밸브부; 상기 매뉴얼밸브부와 연결되어 R라인압을 안내하는 R라인압유로부와 D라인압을 안내하는 D라인압유로부를 구비하는 라인압유로부; 상기 라인압유로부와 연결되어 유압을 제어하는 조절밸브부; 및 상기 조절밸브부에 연결되고, R작동압을 안내하는 R작동압유로부와 D작동압을 안내하는 D작동압유로부를 구비하는 작동압유로부;를 포함하는 것을 특징으로 한다.The hydraulic device for a multi-speed transmission according to the present invention includes: a manual valve unit connected to a supply unit that supplies hydraulic pressure and selectively provides hydraulic pressure according to lever operation; A line pressure passage unit connected to the manual valve unit and including an R line pressure passage unit for guiding R line pressure and a D line pressure passage unit for guiding D line pressure; A control valve unit connected to the line pressure channel unit to control hydraulic pressure; and an operating pressure passage unit connected to the control valve unit and including an R operating pressure passage part that guides the R operating pressure and a D operating pressure passage part that guides the D operating pressure.

상기 매뉴얼밸브부는 레버가 R일 때 상기 라인압유로부와 연결 상태를 유지하여 R라인압을 제공하는 R밸브부; 레버가 N일 때 상기 라인압유로부와 연결 상태를 해지하는 N밸브부; 레버가 D일 때 상기 라인압유로부와 연결 상태를 유지하여 D라인압을 제공하는 D밸브부;를 포함하는 것을 특징으로 한다.The manual valve unit maintains a connected state with the line pressure passage unit when the lever is in R position and provides R line pressure; An N valve unit that terminates the connection with the line pressure channel unit when the lever is at N; When the lever is at D, the D valve part maintains a connection with the line pressure passage part and provides D line pressure.

상기 조절밸브부는 파일럿압을 제공하는 솔레노이드밸브부; 및 상기 솔레노이드밸브부에 의해 작동되고, 상기 작동압유로부에 연결되어 R작동압 또는 D작동압을 선택적으로 제공하는 스위치밸브부;를 포함하는 것을 특징으로 한다.The control valve unit includes a solenoid valve unit that provides pilot pressure; and a switch valve unit operated by the solenoid valve unit and connected to the operating pressure passage unit to selectively provide R operating pressure or D operating pressure.

상기 R라인압유로부와 상기 R작동압유로부가 연결되고, 상기 D라인압유로부와 상기 D작동압유로부가 연결되면, 모터의 정구동으로 후진이 되는 것을 특징으로 한다.When the R line pressure channel unit and the R operating pressure channel unit are connected, and the D line pressure channel unit and the D operating pressure channel unit are connected, the motor moves backward in forward motion.

상기 R라인압유로부와 상기 D작동압유로부가 연결되고, 상기 D라인압유로부와 상기 R작동압유로부가 연결되면, 모터의 역구동으로 후진이 되는 것을 특징으로 한다.When the R line pressure channel unit and the D operating pressure channel unit are connected, and the D line pressure channel unit and the R operating pressure channel unit are connected, the motor moves backward by reverse driving.

본 발명에 따른 다단변속기용 유압장치는 조절밸브부가 라인압유로부와 작동압유로부 사이에 배치되어 라인압유로부에서 공급되는 유압의 이동 경로를 조절할 수 있다. 이로 인해, 매뉴얼밸브부가 R 위치에서 작동압이 D1으로 인가되는 경우 발진용 모터는 역구동하여 후진이 가능하므로, 발진용 모터 크기를 줄일 수 있다.In the hydraulic device for a multi-speed transmission according to the present invention, the control valve part is disposed between the line pressure oil passage part and the operating pressure oil passage part, so that the movement path of the hydraulic pressure supplied from the line pressure oil passage part can be adjusted. Due to this, when the operating pressure of the manual valve unit is applied to D1 in the R position, the starting motor can be reverse driven and move backward, thereby reducing the size of the starting motor.

도 1은 본 발명의 일 실시예에 따른 다단변속기용 유압장치를 개략적으로 나타내는 도면이다.
도 2는 본 발명의 일 실시예에 따른 다단변속기용 유압장치에서 모터 정구동 후진 상태를 개략적으로 나타내는 도면이다.
도 3은 본 발명의 일 실시예에 따른 다단변속기용 유압장치에서 모터 역구동 후진 상태를 개략적으로 나타내는 도면이다.1 is a diagram schematically showing a hydraulic device for a multi-speed transmission according to an embodiment of the present invention.
Figure 2 is a diagram schematically showing a motor forward and reverse state in a hydraulic device for a multi-speed transmission according to an embodiment of the present invention.
Figure 3 is a diagram schematically showing a motor reverse drive reverse state in a hydraulic device for a multi-speed transmission according to an embodiment of the present invention.

이하, 첨부된 도면들을 참조하여 본 발명에 따른 다단변속기용 유압장치의 실시예를 설명한다. 이러한 과정에서 도면에 도시된 선들의 두께나 구성요소의 크기 등은 설명의 명료성과 편의상 과장되게 도시되어 있을 수 있다. 또한, 후술되는 용어들은 본 발명에서의 기능을 고려하여 정의된 용어들로서, 이는 사용자, 운용자의 의도 또는 관례에 따라 달라질 수 있다. 그러므로, 이러한 용어들에 대한 정의는 본 명세서 전반에 걸친 내용을 토대로 내려져야 할 것이다.Hereinafter, an embodiment of a hydraulic device for a multi-speed transmission according to the present invention will be described with reference to the attached drawings. In this process, the thickness of lines or sizes of components shown in the drawings may be exaggerated for clarity and convenience of explanation. In addition, the terms described below are terms defined in consideration of functions in the present invention, and may vary depending on the intention or custom of the user or operator. Therefore, definitions of these terms should be made based on the content throughout this specification.

도 1은 본 발명의 일 실시예에 따른 다단변속기용 유압장치를 개략적으로 나타내는 도면이다. 도 1을 참조하면, 본 발명의 일 실시예에 따른 다단변속기용 유압장치(1)는 매뉴얼밸브부(10)와, 라인압유로부(20)와, 조절밸브부(30)와, 작동압유로부(40)를 포함한다.1 is a diagram schematically showing a hydraulic device for a multi-speed transmission according to an embodiment of the present invention. Referring to Figure 1, the hydraulic device 1 for a multi-speed transmission according to an embodiment of the present invention includes a manual valve unit 10, a line pressure passage unit 20, a control valve unit 30, and an operating pressure. It includes a flow path unit (40).

매뉴얼밸브부(10)는 유압을 공급하는 공급부(100)에 연결되고, 레버 조작에 따라 유압을 선택적으로 제공한다. 일예로, 운전자가 레버를 조작하면, 레버가 전진(D), 후진(R), 중립(N)에 위치됨에 따라 매뉴얼밸브부(10)는 작동되어 유압을 선택적으로 안내할 수 있다.The manual valve unit 10 is connected to the supply unit 100 that supplies hydraulic pressure, and selectively provides hydraulic pressure according to the operation of the lever. For example, when the driver operates the lever, the manual valve unit 10 is operated to selectively guide hydraulic pressure as the lever is positioned in forward (D), reverse (R), or neutral (N).

라인압유로부(20)는 매뉴얼밸브부(10)와 연결되어 R라인압을 안내하는 R라인압유로부(21)와, D라인압을 안내하는 D라인압유로부(22)를 구비한다. 일예로, 공급부(100)를 통해 공급되는 유압이 R라인압유로부(21)를 통과하여 후진을 위한 작동압을 공급할 수 있다. 그리고, 공급부(100)를 통해 공급되는 유압이 D라인압유로부(22)를 통과하여 전진을 위한 작동압을 공급할 수 있다.The line pressure passage unit 20 is connected to the manual valve unit 10 and includes an R line pressure passage unit 21 that guides the R line pressure, and a D line pressure passage unit 22 that guides the D line pressure. . For example, the hydraulic pressure supplied through the supply unit 100 may pass through the R line pressure passage unit 21 to supply operating pressure for backward movement. Additionally, the hydraulic pressure supplied through the supply unit 100 may pass through the D line pressure passage unit 22 to supply operating pressure for forward movement.

조절밸브부(30)는 라인압유로부(20)와 연결되어 유압을 제어한다. 일예로, 조절밸브부(30)는 스위치 조작에 의해 작동되어 R라인압유로부(21)와, D라인압유로부(22)와의 연결라인을 변경할 수 있다. 그 외, 조절밸브부(30)는 별도의 스위치 조작을 하지 않더라도 자동으로 작동될 수 있다.The control valve unit 30 is connected to the line pressure passage unit 20 to control hydraulic pressure. For example, the control valve unit 30 can be operated by operating a switch to change the connection line between the R line pressure channel unit 21 and the D line pressure channel unit 22. In addition, the control valve unit 30 can be automatically operated even without a separate switch operation.

작동압유로부(40)는 조절밸브부(30)에 연결되고, R작동압을 안내하는 R작동압유로부(41)와, D작동압을 안내하는 D작동압유로부(42)를 구비한다. 일예로, R작동압유로부(41)를 통과한 R작동압은 각종 브레이크와 클러치를 단속하여 차량의 후진이 가능하도록 할 수 있다. 그리고, D작동압유로부(42)를 통과한 D작동압은 각종 브레이크와 클러치를 단속하여 차량의 전진이 가능하도록 할 수 있다.The operating pressure passage unit 40 is connected to the control valve unit 30 and includes an R operating pressure passage portion 41 that guides the R operating pressure, and a D operating pressure passage portion 42 that guides the D operating pressure. do. For example, the R operating pressure passing through the R operating pressure flow path unit 41 can control various brakes and clutches to enable the vehicle to move backwards. In addition, the D operating pressure passing through the D operating pressure flow path unit 42 can control various brakes and clutches to enable the vehicle to move forward.

본 발명의 일 실시예에 따른 매뉴얼밸브부(10)는 R밸브부(11)와, N밸브부(12)와, D밸브부(13)를 포함한다. 이들은 연이어 배치되고, 레버가 작동됨에 따라 이동되어 공급부(100)의 라인압을 안내하거나 차단할 수 있다.The manual valve unit 10 according to an embodiment of the present invention includes an R valve unit 11, an N valve unit 12, and a D valve unit 13. They are arranged in succession and can be moved as the lever is operated to guide or block the line pressure of the supply unit 100.

R밸브부(11)는 레버가 R일 때 라인압유로부(20)와 연결 상태를 유지하여 R라인압을 제공한다. 일예로, 레버가 R에 위치되면, R밸브부(11)가 공급부(100)와 R라인압유로부(21)를 연결시킬 수 있다.The R valve unit 11 maintains a connected state with the line pressure passage unit 20 when the lever is at R and provides R line pressure. For example, when the lever is positioned at R, the R valve unit 11 can connect the supply unit 100 and the R line pressure passage unit 21.

N밸브부(12)는 레버가 N일 때 라인압유로부(20)와 연결 상태를 해지한다. 일예로, 레버가 N에 위치되면, N밸브부(12)가 공급부(100)와 라인압유로부(20)간의 연결을 차단할 수 있다.The N valve unit 12 is disconnected from the line pressure channel unit 20 when the lever is at N. For example, when the lever is positioned at N, the N valve unit 12 may block the connection between the supply unit 100 and the line pressure passage unit 20.

D밸브부(13)는 레버가 D일 때 라인압유로부(20)와 연결 상태를 유지하여 D라인압을 제공한다. 일예로, 레버가 D에 위치되면, D밸브부(13)가 공급부(100)와 D라인압유로부(22)를 연결시킬 수 있다.The D valve unit 13 maintains a connected state with the line pressure oil passage unit 20 when the lever is at D and provides D line pressure. For example, when the lever is positioned at D, the D valve unit 13 can connect the supply unit 100 and the D line pressure passage unit 22.

본 발명의 일 실시예에 따른 조절밸브부(30)는 솔레노이드밸브부(70)와 스위치밸브부(80)를 포함한다. 솔레노이드밸브부(80)는 파일럿압을 제공하고, 솔레노이드밸브부(80)에 의해 작동되는 스위치밸브부(80)는 작동압유로부(40)에 연결되어 R작동압 또는 D작동압을 선택적으로 제공한다.The control valve unit 30 according to an embodiment of the present invention includes a solenoid valve unit 70 and a switch valve unit 80. The solenoid valve unit 80 provides pilot pressure, and the switch valve unit 80 operated by the solenoid valve unit 80 is connected to the operating pressure passage unit 40 to selectively select R operating pressure or D operating pressure. to provide.

일예로, 스위치밸브부(80)는 R스위치밸브부(81)와 D스위치밸브부(82)를 포함할 수 있다. R스위치밸브부(81)는 R라인압유로부(21)와 R작동압유로부(41)를 연결할 수 있다. 그리고, D스위치밸브부(82)는 R라인압유로부(21)와 D작동압유로부(42)를 연결할 수 있다. For example, the switch valve unit 80 may include an R switch valve unit 81 and a D switch valve unit 82. The R switch valve unit 81 can connect the R line pressure channel unit 21 and the R operating pressure channel unit 41. Additionally, the D switch valve unit 82 can connect the R line pressure channel unit 21 and the D operating pressure channel unit 42.

도 2는 본 발명의 일 실시예에 따른 다단변속기용 유압장치에서 모터 정구동 후진 상태를 개략적으로 나타내는 도면이다. 도 2를 참조하면, 레버가 R에 위치되고, 솔레노이드밸브부(70)가 작동압을 제공하지 않으면, 공급부(100)는 R밸브부(11)에 의해 R라인압유로부(21)와 연결되고, R라인압유로부(21)는 R스위치밸브부(81)에 의해 R작동압유로부(41)와 연결된다. Figure 2 is a diagram schematically showing a motor forward and reverse state in a hydraulic device for a multi-speed transmission according to an embodiment of the present invention. Referring to FIG. 2, when the lever is positioned at R and the solenoid valve unit 70 does not provide operating pressure, the supply unit 100 is connected to the R line pressure passage unit 21 by the R valve unit 11. And the R line pressure passage unit 21 is connected to the R operating pressure passage unit 41 by the R switch valve unit 81.

이로 인해, 공급부(100)를 통해 공급된 유압은 R라인압유로부(21)와 R작동압유로부(41)를 통과하여 변속기는 후진 변속 상태가 된다.Due to this, the hydraulic pressure supplied through the supply unit 100 passes through the R line pressure passage unit 21 and the R operating pressure passage unit 41, and the transmission enters a reverse shifting state.

따라서, 하이브리드 차량 또는 전기차량에서 동력을 제공하는 모터가 정구동을 하더라도 차량이 후진할 수 있다.Therefore, even if the motor that provides power in a hybrid vehicle or electric vehicle drives forward, the vehicle can move backwards.

도 3은 본 발명의 일 실시예에 따른 다단변속기용 유압장치에서 모터 역구동 후진 상태를 개략적으로 나타내는 도면이다. 도 3을 참조하면, 레버가 R에 위치되고, 솔레노이드밸브부(70)가 작동압을 제공하면, 공급부(100)는 R밸브부(11)에 의해 R라인압유로부(21)와 연결되고, R라인압유로부(21)는 D스위치밸브부(82)에 의해 D작동압유로부(42)와 연결된다. Figure 3 is a diagram schematically showing a motor reverse drive reverse state in a hydraulic device for a multi-speed transmission according to an embodiment of the present invention. Referring to FIG. 3, when the lever is positioned at R and the solenoid valve unit 70 provides operating pressure, the supply unit 100 is connected to the R line pressure passage unit 21 by the R valve unit 11. , the R line pressure channel unit 21 is connected to the D operating pressure channel unit 42 by the D switch valve unit 82.

이로 인해, 공급부(100)를 통해 공급된 유압은 R라인압유로부(21)와 D작동압유로부(42)를 통과하여 변속기는 전진 1단 변속 상태가 된다.Due to this, the hydraulic pressure supplied through the supply unit 100 passes through the R line pressure channel unit 21 and the D operating pressure channel unit 42, and the transmission enters the first gear forward shift state.

따라서, 하이브리드 차량 또는 전기차량에서 동력을 제공하는 모터가 역구동을 하면 차량이 후진할 수 있다.Therefore, when the motor that provides power in a hybrid vehicle or electric vehicle is driven in reverse, the vehicle may move backwards.

본 발명의 일 실시예에 따른 다단변속기용 유압장치(1)는 조절밸브부(30)가 라인압유로부(20)와 작동압유로부(40) 사이에 배치되어 라인압유로부(20)에서 공급되는 유압의 이동 경로를 조절할 수 있다. 이로 인해, 매뉴얼밸브부(10)가 R 위치에서 작동압이 D1으로 인가되는 경우 발진용 모터는 역구동하여 후진이 가능하므로, 발진용 모터 크기를 줄일 수 있다.In the hydraulic device 1 for a multi-speed transmission according to an embodiment of the present invention, the control valve unit 30 is disposed between the line pressure channel part 20 and the operating pressure channel part 40, so that the line pressure channel part 20 The movement path of the hydraulic pressure supplied from can be adjusted. Due to this, when the manual valve unit 10 is in the R position and the operating pressure is applied to D1, the starting motor can be reverse driven and move backward, so the size of the starting motor can be reduced.

본 발명은 도면에 도시된 실시예를 참고로 하여 설명되었으나, 이는 예시적인 것에 불과하며, 당해 기술이 속하는 분야에서 통상의 지식을 가진 자라면 이로부터 다양한 변형 및 균등한 타 실시예가 가능하다는 점을 이해할 것이다. 따라서, 본 발명의 진정한 기술적 보호범위는 아래의 특허청구범위에 의해서 정하여져야 할 것이다.The present invention has been described with reference to the embodiments shown in the drawings, but these are merely exemplary, and those skilled in the art will recognize that various modifications and other equivalent embodiments are possible therefrom. You will understand. Therefore, the true technical protection scope of the present invention should be determined by the scope of the patent claims below.

10 : 매뉴얼밸브부 11 : R밸브부
12 : N밸브부 13 : D밸브부
20 : 라인압유로부 21 : R라인압유로부
22 : D라인압유로부 30 : 조절밸브부
40 : 작동압유로부 41 : R작동압유로부
42 : D작동압유로부 70 : 솔레노이드밸브부
80 : 스위치밸브부 81 ; R스위치밸브부
82 : D스위치밸브부10: Manual valve part 11: R valve part
12: N valve part 13: D valve part
20: Line pressure oil passage part 21: R line pressure oil passage part
22: D line pressure channel part 30: Control valve part
40: operating pressure oil passage part 41: R operating pressure oil passage part
42: D operating pressure channel part 70: Solenoid valve part
80: switch valve part 81; R switch valve part
82: D switch valve part

Claims (5)

유압을 공급하는 공급부에 연결되고, 레버 조작에 따라 유압을 선택적으로 제공하는 매뉴얼밸브부;
상기 매뉴얼밸브부와 연결되어 R라인압을 안내하는 R라인압유로부와 D라인압을 안내하는 D라인압유로부를 구비하는 라인압유로부;
상기 라인압유로부와 연결되어 유압을 제어하는 조절밸브부; 및
상기 조절밸브부에 연결되고, R작동압을 안내하는 R작동압유로부와 D작동압을 안내하는 D작동압유로부를 구비하는 작동압유로부;를 포함하며,
상기 R라인압유로부와 상기 R작동압유로부가 연결되고, 상기 D라인압유로부와 상기 D작동압유로부가 연결되면, 모터의 정구동으로 후진이 되는 것을 특징으로 하는 다단변속기용 유압장치.
A manual valve unit connected to a supply unit that supplies hydraulic pressure and selectively provides hydraulic pressure according to lever operation;
A line pressure passage unit connected to the manual valve unit and including an R line pressure passage unit for guiding R line pressure and a D line pressure passage unit for guiding D line pressure;
A control valve unit connected to the line pressure channel unit to control hydraulic pressure; and
It is connected to the control valve unit and includes an R operating pressure passage part that guides the R operating pressure and a D operating pressure passage part that guides the D operating pressure;
A hydraulic device for a multi-speed transmission, characterized in that when the R line pressure oil passage part and the R operating pressure oil channel part are connected, and the D line pressure oil channel part and the D operating pressure oil channel part are connected, the motor moves backward in forward motion.
 제 1항에 있어서, 상기 매뉴얼밸브부는
레버가 R일 때 상기 라인압유로부와 연결 상태를 유지하여 R라인압을 제공하는 R밸브부;
레버가 N일 때 상기 라인압유로부와 연결 상태를 해지하는 N밸브부;
레버가 D일 때 상기 라인압유로부와 연결 상태를 유지하여 D라인압을 제공하는 D밸브부;를 포함하는 것을 특징으로 하는 다단변속기용 유압장치.
The method of claim 1, wherein the manual valve unit
An R valve unit that provides R line pressure by maintaining connection with the line pressure passage unit when the lever is at R;
An N valve unit that terminates the connection with the line pressure channel unit when the lever is at N;
A hydraulic device for a multi-speed transmission comprising: a D valve unit that maintains a connected state with the line pressure passage unit when the lever is in D position and provides D line pressure.
 제 1항에 있어서, 상기 조절밸브부는
파일럿압을 제공하는 솔레노이드밸브부; 및
상기 솔레노이드밸브부에 의해 작동되고, 상기 작동압유로부에 연결되어 R작동압 또는 D작동압을 선택적으로 제공하는 스위치밸브부;를 포함하는 것을 특징으로 하는 다단변속기용 유압장치.
The method of claim 1, wherein the control valve unit
A solenoid valve unit that provides pilot pressure; and
A switch valve unit operated by the solenoid valve unit and connected to the operating pressure passage unit to selectively provide R operating pressure or D operating pressure.
 삭제delete 제 1항에 있어서,
상기 R라인압유로부와 상기 D작동압유로부가 연결되고, 상기 D라인압유로부와 상기 R작동압유로부가 연결되면, 모터의 역구동으로 후진이 되는 것을 특징으로 하는 다단변속기용 유압장치.
According to clause 1,
A hydraulic device for a multi-speed transmission, characterized in that when the R line pressure channel part and the D operating pressure channel part are connected, and the D line pressure channel part and the R operating pressure channel part are connected, the motor moves backwards.
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