KR20150129117A - Transmission for vehicle having advance 7 spped and back 1 speed - Google Patents
Transmission for vehicle having advance 7 spped and back 1 speed Download PDFInfo
- Publication number
- KR20150129117A KR20150129117A KR1020140054654A KR20140054654A KR20150129117A KR 20150129117 A KR20150129117 A KR 20150129117A KR 1020140054654 A KR1020140054654 A KR 1020140054654A KR 20140054654 A KR20140054654 A KR 20140054654A KR 20150129117 A KR20150129117 A KR 20150129117A
- Authority
- KR
- South Korea
- Prior art keywords
- gear
- output
- transmission
- speed change
- gears
- Prior art date
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Classifications
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16H—GEARING
- F16H3/00—Toothed gearings for conveying rotary motion with variable gear ratio or for reversing rotary motion
- F16H3/02—Toothed gearings for conveying rotary motion with variable gear ratio or for reversing rotary motion without gears having orbital motion
- F16H3/08—Toothed gearings for conveying rotary motion with variable gear ratio or for reversing rotary motion without gears having orbital motion exclusively or essentially with continuously meshing gears, that can be disengaged from their shafts
- F16H3/087—Toothed gearings for conveying rotary motion with variable gear ratio or for reversing rotary motion without gears having orbital motion exclusively or essentially with continuously meshing gears, that can be disengaged from their shafts characterised by the disposition of the gears
- F16H3/093—Toothed gearings for conveying rotary motion with variable gear ratio or for reversing rotary motion without gears having orbital motion exclusively or essentially with continuously meshing gears, that can be disengaged from their shafts characterised by the disposition of the gears with two or more countershafts
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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
- F16H3/02—Toothed gearings for conveying rotary motion with variable gear ratio or for reversing rotary motion without gears having orbital motion
- F16H3/08—Toothed gearings for conveying rotary motion with variable gear ratio or for reversing rotary motion without gears having orbital motion exclusively or essentially with continuously meshing gears, that can be disengaged from their shafts
- F16H3/12—Toothed gearings for conveying rotary motion with variable gear ratio or for reversing rotary motion without gears having orbital motion exclusively or essentially with continuously meshing gears, that can be disengaged from their shafts with means for synchronisation not incorporated in the clutches
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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
- F16H2200/203—Transmissions using gears with orbital motion characterised by the engaging friction means not of the freewheel type, e.g. friction clutches or brakes
- F16H2200/2048—Transmissions using gears with orbital motion characterised by the engaging friction means not of the freewheel type, e.g. friction clutches or brakes with seven engaging means
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- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Structure Of Transmissions (AREA)
Abstract
Description
More particularly, the present invention relates to an automatic transmission having a forward clutch and a reverse forward gear, and more particularly, to an automatic transmission having a dual clutch transmission and an automatic transmission And a forward transmission having seven forward and one reverse stages for implementing the same shifting structure.
Generally, the dual clutch transmission is a kind of second-generation automated manual transmission that improves the shift delay feeling due to clutch disconnection during shift, which is a disadvantage in an automated shift gear (ASG) transmission currently applied to a small-sized vehicle. And is known to exhibit excellent performance in terms of efficiency.
Such a dual clutch transmission uses two clutches on the input shaft to engage a synchromesh of a gear to be shifted in advance and disengages one clutch currently engaged and engages a new clutch to perform shifting, Thereby improving the transmission gear ratio (reduction in torque during shifting).
The presently developed dual clutch transmission is divided into a wet dual clutch transmission and a dry dual clutch transmission by applying a wet clutch and applying a dry clutch and in the case of a dry clutch, While wet clutch has difficulty in control, there is no big hurdle to apply the technology already applied to automatic transmission in control. Therefore, currently high-torque luxury car adopts dual clutch transmission using wet clutch . In addition, a technology for constructing a system in a smaller space is required.
Such a dual clutch transmission is disclosed in Korean Patent Laid-open Publication No. 10-2011-0007459 and Korean Laid-Open Patent Publication No. 10-2011-0109514.
This dual clutch transmission is disadvantageous in that a power loss occurs when the clutch is attached to or disengaged from a flywheel that receives the output of the engine. In addition, the dual clutch transmission may suffer from shock and vibration when the clutch is attached to or detached from the flywheel.
SUMMARY OF THE INVENTION Accordingly, the present invention has been made keeping in mind the above problems occurring in the prior art, and an object of the present invention is to provide a dual clutch transmission, The present invention provides an automotive transmission having a seventh forward stage and a reverse first stage capable of improving the transmission efficiency and fuel economy by forming a transmission structure similar to a transmission.
Further, the present invention provides an automotive transmission having a forward seventh stage and a reverse first stage that can prevent a power loss caused by an operation of attaching or detaching a clutch to a flywheel by not using a coupling structure of a flywheel and a clutch There is a purpose.
Further, the present invention provides an automotive transmission having a forward seventh stage and a reverse first stage that can prevent shocks and vibrations caused by an operation of attaching or detaching a clutch to / from a flywheel by not using a coupling structure of a flywheel and a clutch .
In accordance with one aspect of the present invention, there is provided an internal combustion engine including: an input shaft that receives rotation of an output of an engine; first to fourth shift gears connected to the input shaft; A second gear portion including a fifth gear to be engaged with the input shaft and a second output gear to selectively output rotational force transmitted from the input shaft; And an output shaft connected to the second gear portion and selectively transmitting rotational force from the first gear portion or the second gear portion to output the rotational force to the outside.
The first gear portion may include a first rotation shaft coupled to the rotation centers of the first to fourth shift gears and the first output gear, and a second rotation shaft disposed between the first and second shift gears, A first synchronizer that selectively couples one of the shift gears to rotate together with the first rotation shaft, and a second synchronizer that is disposed between the third and fourth shift gears and selectively connects any one of the third or fourth shift gears And a third synchronizer disposed at one side of the first output gear and selectively coupling the first output gear to rotate together with the first rotation shaft Do.
Further, it is preferable that any one of the first to fourth shift gears is formed as a reverse gear.
The second gear portion may include a second rotation shaft coupled to the rotation centers of the fifth to eighth speed change gears and the second output gear and a second rotation shaft disposed between the fifth and sixth shift gears, A fourth synchronizer that selectively couples one of the shift gears to rotate together with the second rotation shaft, and a fourth synchronizer that is disposed between the seventh and eighth shift gears to selectively engage either the seventh or eighth shift gear And a sixth synchronizer disposed at one side of the second output gear and selectively coupling the second output gear to rotate together with the second rotation shaft Do.
Preferably, the output shaft further includes a planetary gear unit connected to the first output gear and the second output gear.
According to the present invention, the power output from the engine to the outside of the transmission in the transmission is interrupted in the transmission through the synchronizer device without using the power interrupting structure through the coupling of the flywheel and the clutch, A similar transmission structure is formed to improve the transmission efficiency and the fuel economy.
Further, according to the present invention, there is an effect that loss of power generated by the operation of attaching or detaching the clutch to the flywheel can be prevented by not using the coupling structure of the flywheel and the clutch.
Further, according to the present invention, there is an effect that the shock and vibration generated by the operation of attaching or detaching the clutch to the flywheel can be prevented by not using the coupling structure of the flywheel and the clutch.
BRIEF DESCRIPTION OF THE DRAWINGS Fig. 1 is a view for explaining an automotive transmission having a forward seventh stage and a reverse first stage according to an embodiment of the present invention; Fig.
Fig. 2 is a view for explaining an even-numbered and a post-diagnosis shift state of an automotive transmission having seven forward stages and one reverse stage of Fig. 1;
Fig. 3 is a view for explaining a shifting state of an odd-numbered one of an automotive transmission having seven forward stages and one reverse stage of Fig. 1; Fig.
4 is a view for explaining an automotive transmission having a forward seventh stage and a reverse first stage according to another embodiment;
DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS Reference will now be made in detail to embodiments of the present invention, examples of which are illustrated in the accompanying drawings. In this process, the thicknesses of the lines and the sizes of the 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 the functions of the present invention, which may vary depending on the intention or custom of the user, the operator. Therefore, definitions of these terms should be made based on the contents throughout this specification.
1 is a view for explaining a transmission for an automobile having seven forward stages and one reverse stage according to an embodiment of the present invention.
Referring to FIG. 1, an
The
The
Here, the first
That is, the
At this time, any one of the first to
The
Here, the fifth
That is, the
The
In this case, the
Fig. 2 is a view for explaining an even-numbered and a post-diagnosis shift state of an automotive transmission having seven forward stages and one reverse stage of Fig. 1. Fig.
Referring to FIG. 2, the
That is, the
At this time, the
Here, the first to fourth shift gears 121, 122, 123 and 124 may be configured as different pre-diagnosis or post-diagnosis depending on the design of the gear ratio with the first to fourth input gears 111, 112, 113 and 114 have.
Fig. 3 is a view for explaining the shifting state of the automatic transmission of the present invention having the forward seventh stage and the reverse first stage of Fig. 1; Fig.
Referring to FIG. 3, the
That is, when the
At this time, the
Here, the fifth to eighth speed change gears 131, 132, 133, and 134 may be configured with different pre-diagnoses according to the gear ratio design with the first to fourth input gears 111, 112, 113, Hereinafter, an
4 is a view for explaining an automotive transmission having a forward seventh stage and a reverse first stage according to another embodiment.
Referring to FIG. 4, an
The
The
When the rotational force is transmitted from the
The
While the present invention has been particularly shown and described with reference to exemplary embodiments thereof, it is to be understood that the invention is not limited to the disclosed embodiments, but, on the contrary, It is understandable. Accordingly, the true scope of the present invention should be determined by the following claims.
100: Automotive transmission having seven forward and one reverse
110: input shaft 111: first input gear
112: second input gear 113: third input gear
114: fourth input gear 120: first gear portion
121: first speed change gear 122: second speed change gear
123: Third speed change gear 124: Fourth speed change gear
124a: reverse shift gear 125: first output gear
126: first synchronizer 127: second synchronizer
128: Third synchronizer 129: First synchronizer
130: second gear portion 131: fifth speed change gear
132: Sixth speed change gear 133: Seventh speed change gear
134: Eighth gear shift gear 135: Second output gear
136: Fourth synchronizer 137: Fifth synchronizer
138: sixth synchronizer 139: second rotation shaft
140: output shaft 150: planetary gear unit
Claims (5)
A first gear unit including first to fourth shift gears connected to the input shaft and a first output gear for selectively outputting rotational force transmitted from the input shaft;
A second gear portion including fifth to eighth speed change gears connected to the input shaft and a second output gear for selectively outputting rotational force transmitted from the input shaft; And
An output shaft connected to the first gear portion and the second gear portion and selectively transmitting rotational force from the first gear portion or the second gear portion and outputting the rotational force to the outside;
And a forward one-stage and a reverse one-stage.
The first gear portion
A first rotation shaft coupled to the rotation centers of the first to fourth shift gears and the first output gear,
A first synchronizer disposed between the first and second shift gears for selectively coupling any one of the first and second shift gears to rotate together with the first rotation shaft;
A second synchronizer disposed between the third and fourth shift gears for selectively coupling any one of the third or fourth shift gears to rotate together with the first rotation shaft,
And a third synchronizer disposed at one side of the first output gear and selectively coupling the first output gear so that the first output gear rotates together with the first rotation shaft. Transmission.
Wherein one of the first to fourth shift gears is formed as a reverse gear.
The second gear portion
A second rotation shaft coupled to the rotation centers of the fifth to eighth speed change gears and the second output gear,
A fourth synchronizer disposed between the fifth and sixth shift gears for selectively coupling any one of the fifth or sixth shift gears to rotate together with the second rotation shaft,
A fifth synchronizer disposed between the seventh and eighth speed shift gears for selectively coupling any one of the seventh or eighth shift gears to rotate together with the second rotation shaft,
And a sixth synchronizer disposed at one side of the second output gear and selectively coupling the second output gear to rotate together with the second rotation shaft. Transmission.
The output shaft
Further comprising a planetary gear unit coupled to said first output gear and said second output gear, said forward planetary gear unit having a forward seventh stage and a reverse first stage.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
KR1020140054654A KR20150129117A (en) | 2014-05-08 | 2014-05-08 | Transmission for vehicle having advance 7 spped and back 1 speed |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
KR1020140054654A KR20150129117A (en) | 2014-05-08 | 2014-05-08 | Transmission for vehicle having advance 7 spped and back 1 speed |
Publications (1)
Publication Number | Publication Date |
---|---|
KR20150129117A true KR20150129117A (en) | 2015-11-19 |
Family
ID=54843298
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
KR1020140054654A KR20150129117A (en) | 2014-05-08 | 2014-05-08 | Transmission for vehicle having advance 7 spped and back 1 speed |
Country Status (1)
Country | Link |
---|---|
KR (1) | KR20150129117A (en) |
-
2014
- 2014-05-08 KR KR1020140054654A patent/KR20150129117A/en not_active Application Discontinuation
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