KR100983467B1 - Auto transmission - Google Patents
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- KR100983467B1 KR100983467B1 KR1020080102773A KR20080102773A KR100983467B1 KR 100983467 B1 KR100983467 B1 KR 100983467B1 KR 1020080102773 A KR1020080102773 A KR 1020080102773A KR 20080102773 A KR20080102773 A KR 20080102773A KR 100983467 B1 KR100983467 B1 KR 100983467B1
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- South Korea
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- gear
- carrier
- ring gear
- clutch
- sun gear
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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
- F16H3/00—Toothed gearings for conveying rotary motion with variable gear ratio or for reversing rotary motion
- F16H3/44—Toothed gearings for conveying rotary motion with variable gear ratio or for reversing rotary motion using gears having orbital motion
- F16H3/62—Gearings having three or more central gears
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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
- F16H2200/00—Transmissions for multiple ratios
- F16H2200/003—Transmissions for multiple ratios characterised by the number of forward speeds
- F16H2200/0056—Transmissions for multiple ratios characterised by the number of forward speeds the gear ratios comprising seven forward speeds
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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
- F16H2200/00—Transmissions for multiple ratios
- F16H2200/20—Transmissions using gears with orbital motion
- F16H2200/2002—Transmissions using gears with orbital motion characterised by the number of sets of orbital gears
- F16H2200/201—Transmissions using gears with orbital motion characterised by the number of sets of orbital gears with three sets of orbital gears
Abstract
본 발명은 변속기에 관한 것으로서, 특히, 간단한 부품의 추가로 7속화가 가능한 자동변속기에 관한 것이다.
본 발명은 후방선기어에 연결되는 제4브레이크와, 중간캐리어와 후방선기어 사이에 구비되는 제4클러치를 포함하는 자동변속기를 제공한다.
자동차, 차량, 변속기, 클러치, 브레이크
The present invention relates to a transmission, and more particularly, to an automatic transmission capable of seven speeds with the addition of simple parts.
The present invention provides an automatic transmission including a fourth brake connected to the rear sun gear and a fourth clutch provided between the intermediate carrier and the rear sun gear.
Car, vehicle, transmission, clutch, brake
Description
본 발명은 변속기에 관한 것으로서, 특히, 간단한 부품의 추가로 7속화가 가능한 자동변속기에 관한 것이다.The present invention relates to a transmission, and in particular, to an automatic transmission capable of seven speeds with the addition of simple parts.
일반적으로 자동변속기는, 토크 컨버터와, 상기 토크 컨버터에 연결되어 있는 다단 변속기어 메커니즘을 구비하고 있으며, 자동차의 주행상태에 따라 속기어 메커니즘의 기어단 중 어느 하나의 기어단을 선택하기 위한 유압작동 마찰요소를 포함하고 있다. In general, an automatic transmission includes a torque converter and a multi-speed gear mechanism connected to the torque converter, and hydraulic operation for selecting any one gear stage of the short gear mechanism according to the driving state of the vehicle. It contains a friction element.
도 1은 종래 기술에 따른 자동변속기용 클러치 허브의 장착구조가 도시된 단면도이다.1 is a cross-sectional view showing a mounting structure of a clutch hub for an automatic transmission according to the prior art.
도 1을 참조하면, 종래기술에 따른 자동변속기의 유압작동 마찰요소의 대표적인 다판 클러치의 구조는, 클러치 리테이너(2)의 끝단부 내측에 다판식의 클러치 플레이트(4)와 클러치 디스크(6)가 구비되고, 클러치 리테이너(2)의 일측에는 탄성부재(10)가 결합된 클러치 피스톤(8)이 배치되며, 클러치 디스크(6)의 내측에는 클 러치 허브(12)가 배치된다.Referring to Fig. 1, the structure of a representative multi-plate clutch of a hydraulically actuated friction element of an automatic transmission according to the prior art is a multi-plate clutch plate 4 and a clutch disk 6 inside the end of the clutch retainer 2; A clutch piston 8 having an elastic member 10 coupled thereto is disposed on one side of the clutch retainer 2, and a clutch hub 12 is disposed inside the clutch disk 6.
이로써, 자동변속기가 구동되어 클러치 리테이너(2)와 클러치 피스톤(8) 사이의 공간으로 작동유체가 공급되면, 클러치 피스톤(8)이 클러치 디스크(6)를 가압하여 클러치 플레이트(4)와 밀착되면서 동력전달이 이루어지게 된다.As a result, when the automatic transmission is driven to supply the working fluid to the space between the clutch retainer 2 and the clutch piston 8, the clutch piston 8 presses the clutch disk 6 to be in close contact with the clutch plate 4. Power transfer will take place.
이러한 작동에 의해, 입력축 및 리테이너를 따라 공급되는 동력이 허브를 통해 다른 작동요소로 전달된다.By this operation, power supplied along the input shaft and retainer is transmitted through the hub to other operating elements.
종래 기술에 따른 자동변속기는 3개의 유성기어세트가 구비되어 전진 5속과 1단 후진 기어비를 이루기 것이 보통의 구조이기 때문에 기대치가 높아져 가는 사용자들의 기호에 따라 5속 이상의 기어비를 이루기 어려운 문제점이 있다.The automatic transmission according to the prior art is provided with three planetary gear sets, and thus, it is difficult to achieve a gear ratio of five or more speeds according to preferences of users who have high expectations because the general structure is to achieve five forward speeds and one reverse gear ratio. .
따라서 이를 개선할 필요성이 요청된다.Therefore, there is a need for improvement.
본 발명은 간단한 부품을 추가하여 5속 이상의 기어비를 이룰 수 있는 자동변속기를 제공하는데 그 목적이 있다.It is an object of the present invention to provide an automatic transmission that can achieve a gear ratio of five or more speeds by adding a simple component.
상기와 같은 목적을 달성하기 위하여 본 발명은, 전방선기어, 전방캐리어, 및 전방링기어로 이루어지는 전방유성기어세트, 중간선기어, 중간캐리어, 및 중간링기어로 이루어지는 중간유성기어세트, 및 후방선기어, 후방캐리어, 및 후방링기어로 이루어지는 후방유성기어세트를 구비하고; 상기 중간링기어와 상기 후방캐리어가 연결되고, 상기 중간링기어와 상기 후방캐리어를 연결하는 연결부재에 상기 전방링기어가 연결되고, 상기 전방링기어의 연결부재에 입력축이 연결되고, 상기 전방캐리어는 상기 후방링기어와 연결되고, 상기 중간캐리어는 출력축과 연결되고; 상기 전방선기어에 제1블레이크가 연결되고, 상기 중간선기어에 제2브레이크가 연결되고, 상기 후방캐리어에 제3브레이크가 연결되고; 상기 후방선기어와 상기 후방링기어 사이에 제1클러치가 구비되고, 상기 후방선기어와 상기 중간선기어 사이에 제2클러치가 구비되고, 상기 전방링기어와 중간링기어 사이에 제3클러치가 구비되는 자동변속기에 있어서; 상기 후방선기어에 연결되는 제4브레이크; 및 상기 중간캐리어와 상기 후방선기어 사이에 구비되는 제4클러치를 포함하는 것을 특징으로 하는 자동변속기를 제공한다.In order to achieve the above object, the present invention is a front planetary gear set consisting of a front sun gear, a front carrier, and a front ring gear, an intermediate planetary gear set consisting of a middle sun gear, an intermediate carrier, and an intermediate ring gear, and a rear sun gear, A rear planetary gear set comprising a rear carrier and a rear ring gear; The intermediate ring gear and the rear carrier are connected, the front ring gear is connected to the connection member connecting the intermediate ring gear and the rear carrier, the input shaft is connected to the connection member of the front ring gear, the front carrier Is connected to the rear ring gear, and the intermediate carrier is connected to the output shaft; A first brake is connected to the front sun gear, a second brake is connected to the middle sun gear, and a third brake is connected to the rear carrier; A first clutch is provided between the rear sun gear and the rear ring gear, a second clutch is provided between the rear sun gear and the intermediate sun gear, and a third clutch is provided between the front ring gear and the intermediate ring gear. In a transmission; A fourth brake connected to the rear sun gear; And it provides an automatic transmission comprising a fourth clutch provided between the intermediate carrier and the rear sun gear.
본 발명에 따른 자동변속기는 중간캐리어와 출력축 사이에 제4클러치가 구비되고, 후방선기어에 제4블레이크가 구비됨으로써, 전진 7속 및 1단 후진 기어비를 이룰 수 있으므로 간단한 부품의 추가로 자동변속기의 성능을 향상시킬 수 있는 이점이 있고, 종래의 5속 자동변속기와 부품을 공용으로 사용할 수 있으므로 진보된 자동변속기를 제작하는데 소요되는 시간 및 비용을 절감할 수 있는 이점이 있다.In the automatic transmission according to the present invention, the fourth clutch is provided between the intermediate carrier and the output shaft, and the fourth brake is provided on the rear sun gear, thereby achieving seven forward speeds and one reverse gear ratio. There is an advantage to improve the performance, and the conventional five-speed automatic transmission and parts can be used in common, there is an advantage to reduce the time and cost required to manufacture an advanced automatic transmission.
이하, 첨부된 도면들을 참조하여 본 발명에 따른 자동변속기의 일 실시예를 설명한다.Hereinafter, an embodiment of an automatic transmission according to the present invention will be described with reference to the accompanying drawings.
이러한 과정에서 도면에 도시된 선들의 두께나 구성요소의 크기 등은 설명의 명료성과 편의상 과장되게 도시되어 있을 수 있다.In this process, the thickness of the lines or the size of the components shown in the drawings may be exaggerated for clarity and convenience of description.
또한, 후술되는 용어들은 본 발명에서의 기능을 고려하여 정의된 용어들로써, 이는 사용자, 운용자의 의도 또는 관례에 따라 달라질 수 있다.In addition, terms to be described later are terms defined in consideration of functions in the present invention, which may vary according to a user's or operator's intention or custom.
그러므로 이러한 용어들에 대한 정의는 본 명세서 전반에 걸친 내용을 토대 로 내려져야 할 것이다.Therefore, the definitions of these terms should be based on the contents throughout the specification.
도 1은 본 발명의 일 실시예에 따른 자동변속기가 도시된 구성도이고, 도 2는 본 발명의 일 실시예에 따른 자동변속기의 작동표이고, 도 3은 본 발명의 일 실시예에 따른 자동변속기의 7속 기어비가 도시된 그래프이다.1 is a block diagram showing an automatic transmission according to an embodiment of the present invention, Figure 2 is an operation table of the automatic transmission according to an embodiment of the present invention, Figure 3 is an automatic according to an embodiment of the present invention The 7-speed gear ratio of the transmission is shown in the graph.
도 1 내지 도 3을 참조하면, 본 발명의 일 실시예에 따른 자동변속기는 엔진으로부터 토크 컨버터를 통하여 엔진의 회전력을 전달받는 입력축과, 입력축과 연결된 전방유성기어세트, 입력축과 전방유성기어세트에 각각 연결되고 출력축과 연결된 중간유성기어세트와, 전방유성기어세트와 중간유성기어세트에 각각 연결되고 출력축과 연결된 후방유성기어세트를 포함한다.1 to 3, an automatic transmission according to an embodiment of the present invention includes an input shaft receiving a rotational force of the engine from a engine through a torque converter, a front planetary gear set connected to the input shaft, an input shaft and a front planetary gear set. And an intermediate planetary gear set each connected to and connected to the output shaft, and a rear planetary gear set respectively connected to the front planetary gear set and the intermediate planetary gear set and connected to the output shaft.
전방유성기어세트는 전방선기어(SF), 전방캐리어(CF), 및 전방링기어(RF)로 이루어지고, 중간유성기어세트는 중간선기어(SM), 중간캐리어(CM), 및 중간링기어(RM)로 이루어지고, 후방유성기어세트는 후방선기어(SR), 후방캐리어(CR), 및 후방링기어(RR)로 이루어진다.The front planetary gear set consists of the front sun gear (SF), the front carrier (CF), and the front ring gear (RF), and the middle planetary gear set includes the middle sun gear (SM), the middle carrier (CM), and the middle ring gear ( RM, and the rear planetary gear set includes a rear sun gear SR, a rear carrier CR, and a rear ring gear RR.
여기서, 각각의 기어의 연결구조 및 클러치 브레이크의 연결구조를 설명하면 다음과 같다.Here, the connection structure of each gear and the connection structure of the clutch brake are as follows.
먼저, 기어들 사이의 연결구조를 설명하면, 중간링기어(RM)와 후방캐리어(CR)가 연결되고, 중간링기어(MR)와 후방캐리어(CR)를 연결하는 연결부재에 전방링기어(RF)가 연결되고, 전방링기어(RF)의 연결부재에 입력축이 연결된다.First, when the connection structure between the gears is described, the intermediate ring gear RM and the rear carrier CR are connected, and the front ring gear is connected to the connecting member connecting the intermediate ring gear MR and the rear carrier CR. RF) is connected, and the input shaft is connected to the connecting member of the front ring gear (RF).
또한, 전방캐리어(CF)는 후방링기어(RR)와 연결되고, 중간캐리어(CM)는 출력축과 연결된다.In addition, the front carrier CF is connected to the rear ring gear RR, and the intermediate carrier CM is connected to the output shaft.
브레이크의 연결구조를 설명하면, 전방선기어(SF)에 제1블레이크(B1)가 연결되고, 중간선기어(SM)에 제2브레이크(B2)가 연결되고, 후방캐리어(CR)에 제3브레이크(B3)가 연결된다.In the following description, the first brake B1 is connected to the front sun gear SF, the second brake B2 is connected to the middle sun gear SM, and the third brake is connected to the rear carrier CR. B3) is connected.
클러치의 연결구조를 설명하면, 후방선기어(SR)와 후방캐리어(CR) 사이에 제1클러치(C1)가 구비되고, 후방선기어(SR)와 중간선기어(SM) 사이에 제2클러치(C2)가 구비되고, 전방링기어(RF)와 중간링기어(RM) 사이에 제3클러치(C3)가 구비된다.Referring to the coupling structure of the clutch, the first clutch C1 is provided between the rear sun gear SR and the rear carrier CR, and the second clutch C2 is located between the rear sun gear SR and the middle sun gear SM. Is provided, and the third clutch (C3) is provided between the front ring gear (RF) and the intermediate ring gear (RM).
상기한 바와 같은 구성 및 연결구조는 전방 5속, 1단 후진 기어비를 갖는 자동변속기의 구성 및 연결구조와 동일하다.The configuration and connection structure as described above is the same as the configuration and connection structure of the automatic transmission having a front five-speed, one-stage reverse gear ratio.
이렇게 전방 5속, 1단 후진 기어비를 갖는 자동변속기에 제4브레이크(B4)와 제4클러치(C4)를 추가로 설치하여 전방 7속, 1단 후진 기어비를 갖는 자동변속기를 구현하게 된다.Thus, the fourth transmission B4 and the fourth clutch C4 are additionally installed in the automatic transmission having the front five-speed, one-speed reverse gear ratio, thereby implementing the automatic transmission having the seven-speed forward, one-speed reverse gear ratio.
여기서, 제4브레이크(B4)는 후방선기어(SR)에 연결되고, 제4클러치(C4)는 중간캐리어(CR)와 중간선기어(SM) 사이에 구비된다.Here, the fourth brake B4 is connected to the rear sun gear SR, and the fourth clutch C4 is provided between the middle carrier CR and the middle sun gear SM.
상기와 같이 구성된 본 발명의 일 실시예에 따른 자동변속기의 동작을 살펴보면 다음과 같다.Looking at the operation of the automatic transmission according to an embodiment of the present invention configured as described above are as follows.
먼저, 차량이 1속으로 전진하게 되면 제1브레이크(B1), 제2브레이크(B2), 및 제4브레이크(B4)가 작동되어 전방선기어(SF), 중간선기어(SM), 및 후방선기어(SR)가 구속되므로 입력축을 통해 전방링기어(RF)로 전달되는 엔진의 회전력은 후방링기어(RR), 후방캐리어(CR), 중간링기어(RM), 및 중간캐리어(CM)를 지나 출력축으로 전달된다.First, when the vehicle moves forward at first speed, the first brake B1, the second brake B2, and the fourth brake B4 are operated to operate the front sun gear SF, the middle sun gear SM, and the rear sun gear ( Since the SR is constrained, the rotational force of the engine transmitted to the front ring gear RF through the input shaft passes through the rear ring gear RR, the rear carrier CR, the intermediate ring gear RM, and the intermediate carrier CM. Is passed to.
상기한 바와 같은 작동에 의해 기어비 그래프에 도시된 1속으로 전진하는 자동변속기의 기어비가 구현된다.By the above operation, the gear ratio of the automatic transmission advancing at 1 speed shown in the gear ratio graph is realized.
차량이 2속으로 전진하게 되면 제1블레이크(B1), 제2브레이크(B2), 및 제4클러치(C4)가 작동되어 전방선기어(SF)와 중간선기어(SM)가 구속되고, 중간캐리어(CM)와 중간선기어(SM)가 연결되어 1대1의 기어비로 동력전달이 이루어지게 된다.When the vehicle moves forward at the second speed, the first brake B1, the second brake B2, and the fourth clutch C4 are operated to restrain the front sun gear SF and the middle sun gear SM, and the intermediate carrier ( CM) and the middle line gear (SM) is connected, the power transmission is made in a gear ratio of one to one.
이로써, 입력축을 통해 전방링기어(RF)로 전달되는 엔진의 회전력은 후방링기어(RR), 후방캐리어(CR), 중간링기어(RM), 및 중간캐리어(CM)를 지나 출력축으로 전달된다.Thus, the rotational force of the engine transmitted to the front ring gear RF through the input shaft is transmitted to the output shaft through the rear ring gear RR, the rear carrier CR, the intermediate ring gear RM, and the intermediate carrier CM. .
이때, 중간캐리어(CM)와 중간선기어(SM)는 제4클러치(C4)에 의해 연결되므로 1속 전진 작동과 다른 기어비 그래프에 도시된 2속으로 전진하는 자동변속기의 기어비가 구현된다.At this time, since the intermediate carrier CM and the intermediate sun gear SM are connected by the fourth clutch C4, the gear ratio of the automatic transmission moving forward at the second speed shown in the gear ratio graph is different from the one-speed forward operation.
차량이 3속으로 전진하게 되면 작동표에 도시된 바와 같이 제1블레이크(B1), 제2블레이크(B2) 및 제1클러치(C1)가 구동되므로 전방선기어(SF)와 중간선기어(SM)가 구속되고, 전방링기어(RF)와 중간링기어(RM)가 연결된다.When the vehicle moves forward at three speeds, the first brake B1, the second brake B2, and the first clutch C1 are driven as shown in the operation table, so that the front sun gear SF and the middle sun gear SM are driven. It is restrained, and the front ring gear RF and the intermediate ring gear RM are connected.
따라서 입력축을 통해 전방링기어(RF)로 전달되는 엔진의 회전력은 중간링기어(RM), 중간캐리어(CM)를 지나 출력축으로 전달된다.Therefore, the rotational force of the engine transmitted to the front ring gear RF through the input shaft is transmitted to the output shaft through the intermediate ring gear RM and the intermediate carrier CM.
이때, 제1클러치(C1)에 의해 후방선기어(SR)와 후방캐리어(CR)가 연결되므로 후방링기어(RR)와 후방캐리어(CR) 사이의 변속기가 가변되면서 변속비 그래프에 도시된 3속 전진 차량의 변속비가 구현된다.At this time, since the rear sun gear SR and the rear carrier CR are connected by the first clutch C1, the transmission between the rear ring gear RR and the rear carrier CR is changed and the third speed forward shown in the speed ratio graph is shown. The speed ratio of the vehicle is realized.
차량이 4속으로 전진하게 되면 작동표에 도시된 바와 같이 제1브레이크(B1), 제1클러치(C1), 및 제2클러치(C2)가 구동되어 전방선기어(SF)가 구속되고, 후방링기어(RR)와 후방선기어(SR)가 연결되며, 후방선기어(SR)와 중간선기어(SM)가 연결된다.When the vehicle moves forward at four speeds, as shown in the operation table, the first brake B1, the first clutch C1, and the second clutch C2 are driven to restrain the front sun gear SF, and the rear ring. The gear RR and the rear sun gear SR are connected, and the rear sun gear SR and the middle sun gear SM are connected.
따라서 입력축을 통해 전방링기어(RF)로 전달되는 엔진의 회전력은 전방캐리어(CF)를 지나 후방링기어(RR), 후방캐리어(CR), 중간링기어(RM), 및 중간캐리어(CM)를 지나 출력축으로 전달된다.Therefore, the rotational force of the engine transmitted to the front ring gear RF through the input shaft passes through the front carrier CF, the rear ring gear RR, the rear carrier CR, the intermediate ring gear RM, and the intermediate carrier CM. Passed through to the output shaft.
이때, 제1클러치(C1)와 제2클러치(C2)에 의해 후방캐리어(CR), 후방선기어(SR), 및 중간선기어(SM)가 연결되므로 후방링기어(RR)와 후방캐리어(CR) 사이의 변속비, 및 중간링기어(RM)와 중간캐리어(CM) 사이의 변속비가 가변되면서 기어비 그래프에 도시된 4속 전진 차량의 기어비가 구현된다.At this time, since the rear carrier CR, the rear sun gear SR, and the middle sun gear SM are connected by the first clutch C1 and the second clutch C2, the rear ring gear RR and the rear carrier CR are connected. The gear ratio of the four-speed forward vehicle shown in the gear ratio graph is realized while the speed ratio between and the speed ratio between the intermediate ring gear RM and the intermediate carrier CM are varied.
차량이 5속으로 전진하게 되면 제1클러치(C1), 제2클러치(C2), 및 제3클러치(C3)가 구동되므로 후방캐리어(CR)와 후방선기어(SR)가 연결되고, 후방선기어(SR)와 중간선기어(SM)가 연결되며, 전방링기어(RF)와 중간링기어(RM)가 연결된다.When the vehicle moves forward at 5 speeds, the first clutch C1, the second clutch C2, and the third clutch C3 are driven, so that the rear carrier CR and the rear sun gear SR are connected, and the rear sun gear ( SR and the intermediate sun gear SM are connected, and the front ring gear RF and the intermediate ring gear RM are connected.
따라서 입력축을 통해 전방링기어(RF)로 전달되는 엔진의 회전력은 중간링기어(RM), 및 중간캐리어(CM)를 통해 출력축으로 전달된다.Therefore, the rotational force of the engine transmitted to the front ring gear RF through the input shaft is transmitted to the output shaft through the intermediate ring gear RM and the intermediate carrier CM.
이때, 제1클러치(C1)와 제2클러치(C2)에 의해 연결된 후방캐리어(CR), 후방선기어(SR), 및 중간선기어(SM)가 중간링기어(RM)와 중간캐리어(CM) 사이의 변속비를 가변시켜 변속비 그래프에 도시된 5속 전진 차량의 변속비를 구현하게 된다.At this time, the rear carrier CR, the rear sun gear SR, and the middle sun gear SM connected by the first clutch C1 and the second clutch C2 are connected between the middle ring gear RM and the middle carrier CM. By varying the speed ratio of to realize the speed ratio of the five-speed forward vehicle shown in the speed ratio graph.
차량이 6속으로 전진하게 되면 제1브레이크(B1), 제2클러치(C2), 및 제3클러치(C3)가 구동되어 전방선기어(SF)가 구속되고, 후방선기어(SR)와 중간선기어(SM)가 연결되며, 전방링기어(RF)와 중간링기어(RM)가 연결된다.When the vehicle moves forward at six speeds, the first brake B1, the second clutch C2, and the third clutch C3 are driven to restrain the front sun gear SF, and the rear sun gear SR and the middle sun gear ( SM) is connected, the front ring gear (RF) and the intermediate ring gear (RM) is connected.
따라서 입력축을 통해 전방링기어(RF)로 전달되는 엔진의 회전력은 중간링기어(RM) 및 중간캐리어(CM)를 통해 출력축으로 전달된다.Therefore, the rotational force of the engine transmitted to the front ring gear RF through the input shaft is transmitted to the output shaft through the intermediate ring gear RM and the intermediate carrier CM.
이때, 중간캐리어(CM)와 중간선기어(SM)가 연결되므로 중간링기어(RM)와 중간캐리어(CM) 사이의 변속비를 가변시켜 6속 전진 차량의 변속비를 구현하게 된다.In this case, since the intermediate carrier CM and the intermediate sun gear SM are connected to each other, the transmission ratio between the intermediate ring gear RM and the intermediate carrier CM is varied to implement the transmission ratio of the six-speed forward vehicle.
차량이 7속으로 전진하게 되면 제1브레이크(B1), 제3클러치(C3), 및 제4클러치(C4)가 구동되어 전방선기어(SF)가 구속되고, 전방링기어(RF)와 중간링기어(RM)가 연결되며, 후방선기어(SR)와 중간캐리어(CM)가 연결된다.When the vehicle moves forward at seven speeds, the first brake B1, the third clutch C3, and the fourth clutch C4 are driven to restrain the front sun gear SF, and the front ring gear RF and the intermediate ring. The gear RM is connected, and the rear sun gear SR and the intermediate carrier CM are connected.
따라서 입력축을 통해 전방링기어(RF)로 전달되는 엔진의 회전력은 중간링기어(RM), 및 중간캐리어(CM)를 지나 출력축에 전달된다.Therefore, the rotational force of the engine transmitted to the front ring gear RF through the input shaft is transmitted to the output shaft through the intermediate ring gear RM and the intermediate carrier CM.
이때, 후방선기어(SR)와 중간캐리어(CM)가 제4클러치(C4)에 의해 연결되므로 중간링기어(RM)와 중간캐리어(CM) 사이의 변속비를 가변시켜 7속 전진 차량의 변속비를 구현하게 된다.At this time, since the rear sun gear SR and the intermediate carrier CM are connected by the fourth clutch C4, the transmission ratio between the intermediate ring gear RM and the intermediate carrier CM is varied to realize the speed ratio of the seventh speed forward vehicle. Done.
이로써, 제4브레이크(B4) 및 제4클러치(C4)를 추가하여 7속 전진 및 1단 후진 기어비를 구현할 수 있는 자동변속기를 제공할 수 있게 된다.Thus, by adding the fourth brake (B4) and the fourth clutch (C4) it is possible to provide an automatic transmission that can implement a seven-speed forward and one-speed reverse gear ratio.
본 발명은 도면에 도시되는 일 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.Although the present invention has been described with reference to one embodiment shown in the drawings, this is merely exemplary, and various modifications and equivalent other embodiments are possible to those skilled in the art. Will understand.
또한, 차량의 자동변속기를 예로 들어 설명하였으나, 이는 예시적인 것에 불과하며, 차량이 아닌 다른 제품에도 본 발명의 자동변속기가 사용될 수 있다.In addition, although the automatic transmission of the vehicle has been described as an example, this is merely exemplary, and the automatic transmission of the present invention may be used in other products than the vehicle.
따라서 본 발명의 진정한 기술적 보호범위는 아래의 특허청구범위에 의해서 정하여져야 할 것이다.Therefore, the true technical protection scope of the present invention will be defined by the claims below.
도 1은 본 발명의 일 실시예에 따른 자동변속기가 도시된 구성도이다.1 is a block diagram showing an automatic transmission according to an embodiment of the present invention.
도 2는 본 발명의 일 실시예에 따른 자동변속기의 작동표이다.2 is an operation table of an automatic transmission according to an embodiment of the present invention.
도 3은 본 발명의 일 실시예에 따른 자동변속기의 7속 기어비가 도시된 그래프이다.3 is a graph showing a seven-speed gear ratio of the automatic transmission according to an embodiment of the present invention.
<도면의 주요 부분에 관한 부호의 설명><Explanation of symbols on main parts of the drawings>
SF : 전방선기어 CF : 전방캐리어SF: Front sun gear CF: Front carrier
RF : 전방링기어 SM : 중간선기어RF: Front Ring Gear SM: Midline Gear
CM : 중간캐리어 RM : 중간링기어CM: Intermediate Carrier RM: Intermediate Ring Gear
SR : 후방선기어 CR : 후방캐리어SR: Rear Sun Gear CR: Rear Carrier
RR : 후방링기어RR: Rear ring gear
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| KR101209750B1 (en) | 2011-04-21 | 2012-12-07 | 현대자동차주식회사 | Planetary gear train of automatic transmission for vehicles |
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| JP2005155719A (en) | 2003-11-21 | 2005-06-16 | Jatco Ltd | Gear shift device for automatic transmission |
| JP2008014482A (en) | 2006-07-05 | 2008-01-24 | Hyundai Motor Co Ltd | Power train of automatic transmission |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2002266956A (en) | 2001-03-05 | 2002-09-18 | Aisin Aw Co Ltd | Automatic transmission |
| JP2005106260A (en) | 2003-10-02 | 2005-04-21 | Toyota Motor Corp | Planetary gear type multi-stage transmission for vehicle |
| JP2005155719A (en) | 2003-11-21 | 2005-06-16 | Jatco Ltd | Gear shift device for automatic transmission |
| JP2008014482A (en) | 2006-07-05 | 2008-01-24 | Hyundai Motor Co Ltd | Power train of automatic transmission |
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| KR101209750B1 (en) | 2011-04-21 | 2012-12-07 | 현대자동차주식회사 | Planetary gear train of automatic transmission for vehicles |
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