KR101766041B1 - Compact type multi-stage transmission with few composition - Google Patents
Compact type multi-stage transmission with few composition Download PDFInfo
- Publication number
- KR101766041B1 KR101766041B1 KR1020150134289A KR20150134289A KR101766041B1 KR 101766041 B1 KR101766041 B1 KR 101766041B1 KR 1020150134289 A KR1020150134289 A KR 1020150134289A KR 20150134289 A KR20150134289 A KR 20150134289A KR 101766041 B1 KR101766041 B1 KR 101766041B1
- Authority
- KR
- South Korea
- Prior art keywords
- planetary gear
- gear set
- rotary
- clutch engagement
- engagement element
- Prior art date
Links
Images
Classifications
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16H—GEARING
- 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
- F16H3/66—Gearings having three or more central gears composed of a number of gear trains without drive passing from one train to another
-
- 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
- F16H2003/442—Toothed gearings for conveying rotary motion with variable gear ratio or for reversing rotary motion using gears having orbital motion comprising two or more sets of orbital gears arranged in a single plane
-
- 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
- F16H2200/0069—Transmissions for multiple ratios characterised by the number of forward speeds the gear ratios comprising ten forward speeds
-
- 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
- F16H2200/0082—Transmissions for multiple ratios characterised by the number of reverse speeds
-
- 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
- F16H2200/2012—Transmissions using gears with orbital motion characterised by the number of sets of orbital gears with four sets of orbital gears
-
- 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
- F16H2200/203—Transmissions using gears with orbital motion characterised by the engaging friction means not of the freewheel type, e.g. friction clutches or brakes
- F16H2200/2046—Transmissions using gears with orbital motion characterised by the engaging friction means not of the freewheel type, e.g. friction clutches or brakes with six engaging means
Landscapes
- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Structure Of Transmissions (AREA)
Abstract
The present invention relates to a multi-stage transmission, and more particularly, to a multi-stage transmission that implements at least a forward 10-speed and a reverse 1-speed using four planetary gear sets and six coupling elements.
The present invention can implement 10 forward speeds and 1 reverse speeds using four planetary gear sets and six friction elements, and is composed of a total of eight rotation elements including input and output, and three of the six fastening elements Wherein the four planetary gear sets (PG1, PG2, PG3, PG4) have an input member and an output member and the four planetary gear sets (PG1, PG2, PG3, PG4) Is a first rotary element of the first planetary gear set (PG1) and a fourth rotary element of the fourth planetary gear set (PG4), the second normally connected element is a third rotary element of the first planetary gear set (PG1) 2 planetary gear set PG2 and the third permanent connecting element is a first rotary element of the third planetary gearset PG3 and a third rotary element of the second planetary gearset PG2, The connecting element is connected to the third rotary element of the third planetary gear set PG3 and the fourth planetary gear set P G4), the second rotary element of the first planetary gear set is normally connected to the input member, and the second rotary element of the third planetary gear set is always connected to the output member.
Description
The present invention relates to a multi-stage transmission, and more particularly, to a multi-stage transmission that implements at least a forward 10-speed and a reverse 1-speed using four planetary gear sets and six coupling elements.
As global oil prices and exhaust emission regulations are strengthened recently, automakers are concentrating on developing technologies that can improve fuel efficiency in an environmentally friendly way.
As a method for improving the fuel economy in an automatic transmission, a multi-speed change mechanism having a plurality of speed change stages that can be implemented is implemented, and a multi-speed shift mechanism of a conventional automatic transmission is implemented by a combination of a plurality of planetary gear sets and a friction element.
In this multi-speed transmission mechanism, more shift speeds that can be implemented make it possible to design a more appropriate transmission ratio, as well as to realize an excellent vehicle in terms of power performance and fuel economy, so that steady research is being conducted to realize more shift stages.
Korean Patent Registration No. 1459477 discloses a planetary gear train having an input shaft receiving power of an engine; An output shaft for outputting a rotational power to be shifted; The rotational power inputted through one input path and two variable input paths while maintaining five rotational shafts by the combination of the first and second planetary gear sets is firstly shifted to six gear positions including a rotation stop state A first complex planetary gear set for outputting; And a rotation shaft connected directly to one of the rotation shafts of the first complex planetary gear set by a combination of the third and fourth planetary gear sets, And a second complex planetary gear set that receives the rotational power of the input shaft through one variable input path and performs second-stage shifting to the forward 11-speed and reverse 1-speed shift stages and finally outputs the rotational power; Eight rotation shafts connecting two rotary elements of each of the rotary elements of the first and second complex planetary gear sets or having one rotary element; And four friction members interposed between the rotary shafts or between the selected rotary shafts and the input shafts for interrupting the power and three brakes for selectively connecting the selected rotary shafts to the transmission housing among the rotary shafts.
Korean Patent Laid-Open Publication No. 2013-0115158 utilizes the rotational power of the rotational power source to directly drive the planetary gear set or to drive the planetary gear set through the power transmission device, and the multi- So that the wheel set of the driven load can perform the change of the drive speed ratio and the drive torque to drive the combined common load; Between the output ends of the two multi-stage speed ratio control devices, a limited slip differential or stabilization device consisting of a dual-shaft connecting device with slip coupling torque can be additionally installed according to actual needs.
On the other hand, Korean Patent Registration No. 1339268, which is a prior art, discloses a planetary gear train of a vehicular automatic transmission including a first shaft receiving power of an engine; A second shaft disposed parallel to the first shaft at a predetermined interval; A first rotary element disposed on the second axis and selectively externally coupled to the first shaft via two paths, a second rotary element connected to the output gear and operating as an output element, A third rotary element selectively connected to the external gear via one path and selectively functioning as a stationary element; a third rotary element selectively connected to the external gear via the one path and selectively acting as a stationary element; A compound planetary gear set having four rotary elements; Four transfer gears interposed in the external gear connecting portion; A clutch for selectively connecting the first, third, and fourth rotary elements to the first shaft, and a brake for variably connecting the second and fourth rotary elements to the transmission housing.
However, the above-mentioned conventional inventions have a problem in that they can not reduce the weight, cost, and the number of components because of a large number of components compared to the gear stages of the transmission, A plan is being sought.
In order to solve the above-mentioned problems, the present invention has an object to implement at least ten forward gears and one reverse gear using four planetary gear sets and six coupling elements.
Another object of the present invention is to provide a multi-speed transmission having eight rotary elements including an input and an output, and selectively connecting three elements out of six coupling elements to form respective stages.
The present invention can implement 10 forward speeds and 1 reverse speeds using four planetary gear sets and six friction elements, and is composed of a total of eight rotation elements including input and output, and three of the six fastening elements Wherein the four planetary gear sets (PG1, PG2, PG3, PG4) have an input member and an output member and the four planetary gear sets (PG1, PG2, PG3, PG4) Is a first rotary element of the first planetary gear set (PG1) and a fourth rotary element of the fourth planetary gear set (PG4), the second normally connected element is a third rotary element of the first planetary gear set (PG1) 2 planetary gear set PG2 and the third permanent connecting element is the first rotating element of the third planetary gear set PG3 and the third rotating element of the second planetary gear set PG2, The connecting element is connected to the third rotary element of the third planetary gear set PG3 and the fourth planetary gear set P G4), the second rotary element of the first planetary gear set is normally connected to the input member, and the second rotary element of the third planetary gear set is always connected to the output member.
In one embodiment, the multi-stage transmission includes six engagement elements, and the input and the third normally connected element (the third rotary element of PG2 and the first rotary element of PG3) are connected by a first clutch engagement element C1 The second rotary element of PG2 and the second rotary element of PG3 are connected or disconnected by the second clutch engagement element C2 and the third rotary element of PG2 and the second rotary element of PG2 are connected or disconnected, The third normally connected element is connected or disconnected by the third clutch engagement element C3 and the second normally connected element and the fourth normally connected element, the third rotary element of PG3 and the second rotary element of PG4, Is connected or disconnected by the fourth clutch engagement element C4.
In one embodiment, the first permanent coupling element (the first rotary element of PG1 and the first rotary element of PG4) of the multi-stage transmission is connected to or disengaged from the fixed member by the first brake engagement element B1, The fourth rotary element of the planetary gear set PG4 is connected to or released from the fixed member by the second brake engagement element B2, and the six coupling elements are engaged between the input member and the output member, And is operated in three combinations at each end in order to realize the gear ratio in the engine.
According to the present invention, a total of eight rotary elements including four planetary gear sets, six coupling elements, input and output, and three (or more) of the six coupling elements are selectively coupled, It provides automatic transmission capable of realizing 1 speed, saving weight, cost, and number of components due to fewer components compared to transmission gear ratio. It is also possible to have compact structure, which improves the mountability and contributes to improvement of transmission performance and fuel efficiency by multi-shoe. do.
FIG. 1 is a view showing connection of each element according to an embodiment of the present invention.
2 is an example of an automatic transmission structure according to the connection diagram of Fig.
FIG. 3 is an example of a fastening element operation table for implementing the forward deceleration and reverse reverse deceleration according to the embodiment of the present invention.
For a better understanding of the present invention, a preferred embodiment of the present invention will be described with reference to the accompanying drawings. The embodiments of the present invention may be modified into various forms, and the scope of the present invention should not be construed as being limited to the embodiments described in detail below. The present embodiments are provided to enable those skilled in the art to more fully understand the present invention. Therefore, the shapes and the like of the elements in the drawings can be exaggeratedly expressed to emphasize a clearer description. It should be noted that the same components are denoted by the same reference numerals in the drawings. Detailed descriptions of well-known functions and constructions which may be unnecessarily obscured by the gist of the present invention are omitted.
The present invention is constituted by a total of eight rotary elements including four planetary gear sets and six coupling elements, input and output, and three (or more) of the six coupling elements are selectively coupled, Speed automatic transmission.
FIG. 1 shows a connection diagram for each element, and FIG. 2 shows an example structure according to the connection diagram of FIG.
Fig. 3 is an example of a fastening element operation table for implementing 10 forward speeds and 1 reverse speeds.
In order to form each gear range in FIG. 3, the '' indicating engaging element '' is an essential engaging element, and the '' indicating engaging element is an optional engaging element, and three (or more) When the fastening element is operated, each end is formed.
Specifically, the present invention can realize 10 forward speeds and 1 reverse speeds using four planetary gear sets and six friction elements, and is composed of a total of eight rotation elements including input and output, And three stages are selectively connected to form each stage.
As shown in FIGS. 1 and 2, the present invention has an input member and an output member, and the four planetary gear sets PG1, PG2, PG3, and PG4 have respective first, second, and third rotary elements, Element is the first rotary element of the first planetary gear set PG1 and the fourth rotary element of the fourth planetary gear set PG4 and the second normally connected element is the third rotary element of the first planetary gear set PG1 Is the first rotary element of the second planetary gear set (PG2), the third normally connected element is the third rotary element of the second planetary gear set (PG2) and the first rotary element of the third planetary gear set (PG3) The permanent linking element is a third rotary element of the third planetary gear set PG3 and a second rotary element of the fourth planetary gear set PG4 and the second rotary element of the first planetary gear set is normally connected to the input member , And the second rotary element of the third planetary gear set is always connected to the output member.
1 to 3, the multi-speed transmission according to the present invention has six fastening elements (torque transmitting devices) and is connected to the input and the third normally connecting element PG3, Is connected or disconnected by the first clutch engagement element C1 and the second rotary element of PG2 and the second rotary element of PG3 are connected or disconnected by the second clutch engagement element C2, Element (the third rotary element of PG1 and the first rotary element of PG2) and the third always-connected element are connected or disconnected by the third clutch engagement element C3, and the second normally-connected element and the fourth normally- And the second rotary element of PG4) are connected or disconnected by the fourth clutch engagement element C4.
Further, in the multi-stage transmission according to the embodiment of the present invention, the first normally-connected element (the first rotary element of PG1 and the first rotary element of PG4) is connected to or released from the fixed member by the first brake engagement element B1 , And the third rotary element of the fourth planetary gear set PG4 is engaged or disengaged from the fixed member by the second brake engagement element B2.
The six fastening elements are operated in combination of three (or more) in each stage in order to implement the gear ratio of the forward 10 speed gear and the reverse 1 speed gear between the input member and the output member.
The first brake engaging element, the second brake engaging element, and the first clutch engaging element are operated in
Accordingly, the present invention provides a planetary gear set including four planetary gear sets, six coupling elements, input and output, and a total of eight rotary elements, three (or more) of the six coupling elements being selectively coupled, It is possible to reduce the weight, cost, and the number of parts because the number of components is smaller than that of the transmission gear ratio by providing the automatic transmission that can realize the
The embodiments of the multi-speed transmission of the present invention described above are merely illustrative and those skilled in the art will appreciate that various modifications and equivalent embodiments are possible without departing from the scope of the present invention. There will be. Accordingly, it is to be understood that the present invention is not limited to the above-described embodiments. Accordingly, the true scope of the present invention should be determined by the technical idea of the appended claims. It is also to be understood that the invention includes all modifications, equivalents, and alternatives falling within the spirit and scope of the invention as defined by the appended claims.
PG1, PG2, PG3, PG4: Planetary gear set
B1: first brake engagement element
B2: Second brake engagement element
B3: Third brake engagement element
B4: fourth brake engagement element
C1: first clutch engaging element
C2: second clutch engaging element
Claims (19)
The four planetary gear sets PG1, PG2, PG3, and PG4 having the input member and the output member respectively have the first, second, and third rotary elements,
The first permanent connecting element is the first rotating element of the first planetary gear set PG1 and the first rotating element of the fourth planetary gear set PG4,
The second normally connected element is the first rotary element of the second planetary gear set PG2 and the third rotary element of the first planetary gear set PG1,
The third normally connected element is the first rotary element of the third planetary gear set PG3 and the third rotary element of the second planetary gear set PG2,
The fourth permanent link element is a third rotary element of the third planetary gear set PG3 and a second rotary element of the fourth planetary gear set PG4,
The second rotary element of the first planetary gear set is normally connected to the input member and the second rotary element of the third planetary gear set is always connected to the output member,
Wherein the multi-stage transmission has six fastening elements, the input member and the third always-connected element being connected or disconnected by a first clutch engagement element (C1)
The second rotary element of the second planetary gear set and the second rotary element of the third planetary gear set are connected or disconnected by the second clutch engagement element C2,
The second normally connected element and the third normally connected element are connected or disconnected by the third clutch engagement element (C3)
The second normally connected element and the fourth normally connected element are connected or disconnected by the fourth clutch engagement element C4,
The first permanent coupling element is connected to or released from the fixed member by the first brake engagement element B1,
And the third rotary element of said fourth planetary gear set is connected to or released from said fixed member by a second brake engagement element (B2).
The first brake engaging element, the second brake engaging element, and the first clutch engaging element are operated in the first forward speed,
The first brake engagement element, the second brake engagement element, and the third clutch engagement element are operated in the forward second speed,
The second clutch engagement element, the third clutch engagement element, and the third clutch engagement element in the forward third speed,
The second brake engagement element is operated in forward speed 4, any two of the second, third, and fourth clutch engagement elements are selectively operated,
The second clutch engagement element, the fourth clutch engagement element, and the fourth clutch engagement element in forward speed 5,
The second brake engagement element, the first clutch engagement element, and the second clutch engagement element in forward speed 6,
Three of the first, second, third and fourth clutch engagement elements are selectively operated in the forward seventh speed,
The first brake engagement element, the first clutch engagement element, and the second clutch engagement element,
The first clutch engagement element, the fourth clutch engagement element, and the fourth clutch engagement element,
The first brake engaging element is operated in forward gear 10, any two of the second, third and fourth clutch engaging elements are selectively operated,
And the first brake engaging element, the second brake engaging element, and the second clutch engaging element are operated in the reverse 1 speed.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| KR1020150134289A KR101766041B1 (en) | 2015-09-23 | 2015-09-23 | Compact type multi-stage transmission with few composition |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| KR1020150134289A KR101766041B1 (en) | 2015-09-23 | 2015-09-23 | Compact type multi-stage transmission with few composition |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| KR20170035456A KR20170035456A (en) | 2017-03-31 |
| KR101766041B1 true KR101766041B1 (en) | 2017-08-07 |
Family
ID=58500812
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| KR1020150134289A KR101766041B1 (en) | 2015-09-23 | 2015-09-23 | Compact type multi-stage transmission with few composition |
Country Status (1)
| Country | Link |
|---|---|
| KR (1) | KR101766041B1 (en) |
Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2015094368A (en) * | 2013-11-08 | 2015-05-18 | アイシン精機株式会社 | Automatic transmission and method of controlling automatic transmission |
| KR101539475B1 (en) | 2007-12-14 | 2015-07-24 | 젯트에프 프리드리히스하펜 아게 | 10gear automatic transmission |
Family Cites Families (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US8649950B2 (en) | 2012-04-11 | 2014-02-11 | Tai-Her Yang | Driving system having epicycle gear sets with dual output ends equipped with individually-controlled multiple speed-ratio device |
| KR101339268B1 (en) | 2012-12-18 | 2013-12-09 | 현대자동차 주식회사 | Planetary gear train of automatic transmission for vehicles |
| KR101459477B1 (en) | 2013-10-18 | 2014-11-07 | 현대자동차 주식회사 | Planetary gear train of automatic transmission for vehicles |
-
2015
- 2015-09-23 KR KR1020150134289A patent/KR101766041B1/en active IP Right Grant
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR101539475B1 (en) | 2007-12-14 | 2015-07-24 | 젯트에프 프리드리히스하펜 아게 | 10gear automatic transmission |
| JP2015094368A (en) * | 2013-11-08 | 2015-05-18 | アイシン精機株式会社 | Automatic transmission and method of controlling automatic transmission |
Also Published As
| Publication number | Publication date |
|---|---|
| KR20170035456A (en) | 2017-03-31 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| KR101592368B1 (en) | Planetary gear train of automatic transmission for vehicles | |
| KR102081079B1 (en) | 8 speed automatic transmission | |
| JP6177607B2 (en) | Planetary gear train for automatic transmission for vehicles | |
| KR101600975B1 (en) | Automatic transmission for car | |
| KR101714155B1 (en) | Transmission for vehicles | |
| KR101459890B1 (en) | Eighth speed power train for automatic transmission | |
| KR101745104B1 (en) | Transmission for vehicles | |
| KR101459440B1 (en) | Planetary gear train of automatic transmission for vehicles | |
| KR101002528B1 (en) | eight speed power train for automatic transmission | |
| KR101921942B1 (en) | Automatic transmission for car | |
| KR101766042B1 (en) | Compact type multi-stage transmission | |
| KR101766041B1 (en) | Compact type multi-stage transmission with few composition | |
| KR101382313B1 (en) | Planetary gear train of automatic transmission for vehicles | |
| KR101459883B1 (en) | Power train for automatic transmission | |
| KR101664604B1 (en) | Multi-stage transmission | |
| KR101836828B1 (en) | Automatic transmission for car | |
| KR101755193B1 (en) | Automatic transmission for car | |
| KR101755194B1 (en) | Automatic transmission for car | |
| KR20190030803A (en) | Transmission for vehicles | |
| KR101785941B1 (en) | Automatic transmission for car | |
| KR101785944B1 (en) | Automatic transmission for car | |
| KR101785943B1 (en) | Automatic transmission for car | |
| KR101836829B1 (en) | Automatic transmission for car | |
| KR101806099B1 (en) | Automatic transmission for car | |
| KR101806098B1 (en) | Automatic transmission for car |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| A201 | Request for examination | ||
| E902 | Notification of reason for refusal | ||
| E701 | Decision to grant or registration of patent right | ||
| GRNT | Written decision to grant |