KR101765498B1 - Dual clutch transmission - Google Patents

Dual clutch transmission Download PDF

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Publication number
KR101765498B1
KR101765498B1 KR1020150168382A KR20150168382A KR101765498B1 KR 101765498 B1 KR101765498 B1 KR 101765498B1 KR 1020150168382 A KR1020150168382 A KR 1020150168382A KR 20150168382 A KR20150168382 A KR 20150168382A KR 101765498 B1 KR101765498 B1 KR 101765498B1
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KR
South Korea
Prior art keywords
gear
power
input
section
synchro
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KR1020150168382A
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Korean (ko)
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KR20170064030A (en
Inventor
이연태
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현대 파워텍 주식회사
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Priority to KR1020150168382A priority Critical patent/KR101765498B1/en
Publication of KR20170064030A publication Critical patent/KR20170064030A/en
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Publication of KR101765498B1 publication Critical patent/KR101765498B1/en

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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
    • 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
    • F16D—COUPLINGS FOR TRANSMITTING ROTATION; CLUTCHES; BRAKES
    • F16D23/00—Details of mechanically-actuated clutches not specific for one distinct type
    • F16D23/02—Arrangements for synchronisation, also for power-operated clutches
    • 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
    • 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
    • F16H2200/0065—Transmissions for multiple ratios characterised by the number of forward speeds the gear ratios comprising nine 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

Abstract

An invention for a dual clutch transmission is disclosed. A dual clutch transmission according to the present invention includes: a first input portion for selectively transmitting power from an engine by a first clutch; a second input portion for selectively transmitting power from the engine by a second clutch; A first output section for receiving and receiving power through an input section and for receiving a power via a first input section and a second input section; A second output section to which the seventh gear, the third gear, the first gear, the second gear, and the sixth gear are mounted; A first synchronous portion selectively synchronized with the fourth gear, the eighth gear, and a second output portion, and is selectively synchronized with the seventh gear, the third gear, the first gear, the second gear, and the sixth gear And a second synchro section, and is capable of shifting to a forward nine-speed and a reverse-first speed.

Description

DUAL CLUTCH TRANSMISSION < RTI ID = 0.0 >

The present invention relates to a dual clutch transmission, and more particularly, to a dual clutch transmission that minimizes the total length and reduces the weight by increasing the number of shift stages using gear trains, To a dual clutch transmission capable of shifting.

In recent years, automotive transmissions have been making efforts to develop a new transmission system that aims to increase fuel efficiency and efficiency. Of these, dual clutch transmissions are attracting attention as new technologies.

Since the dual clutch transmission has the same input shaft for transmitting the power, the length of the transmission is reduced, and the transmission efficiency is particularly excellent because the transmission is shifted by using two clutches. That is, a transmission is provided which separates the input shaft for transmitting the power of the engine into two shafts, arranges a hole means gear on one shaft and an even shafting gear on the other shaft so as to achieve shifting by operating the two clutches alternately .

However, in order to increase the speed change stage, the number of gears is increased to increase the number of stages, which has a problem in that the total load of the transmission as well as the total length are increased. Therefore, there is a need to improve this.

BACKGROUND ART [0002] The background art of the present invention is disclosed in Korean Patent Laid-Open Publication No. 2013-0049308 (published on May 13, 2014, entitled "Shift System of Dual Clutch Transmission").

SUMMARY OF THE INVENTION It is an object of the present invention to provide a dual clutch transmission capable of forward nine-speed shifting and reverse single-speed shifting while minimizing the total length.

A dual clutch transmission according to the present invention includes: a first input unit for selectively transmitting power from an engine by a first clutch; A second input portion for selectively transmitting power from the engine by a second clutch; A first output unit for receiving and outputting power through the first and second input units and having a 9th gear, a 5th gear, an R gear, a 4th gear, and an 8th gear; A second output unit for receiving and outputting power through the first and second input units and including a seventh gear, a third gear, a first gear, a second gear, and a sixth gear; A first synchronous portion mounted on the first output portion and selectively synchronized with the ninth gear, the fifth gear, the R gear, the fourth gear, and the eighth gear; And a second synchronous portion mounted on the second output portion and selectively synchronized with the seventh gear, the third gear, the first gear, the second gear, and the sixth gear, And is capable of shifting to the first and reverse stages.

Wherein the first input portion is connected to the ninth gear, the fifth gear, the seventh gear, the third gear and the first gear, and the second input portion is connected to the fourth gear, the eighth gear, And the sixth gear is connected to the sixth gear.

The first input and the second input are arranged on a coaxial line in the form of a double tube using a hollow shaft.

The first synchro part is disposed between the ninth gear and the fifth gear and synchronizes the power of the ninth gear and the fifth gear so as to selectively transmit power; A second-second synchronizer disposed between the fifth gear and the R gear and connected to the fourth gear to synchronize power transmission selectively to the R gear; And a 1-3 th synchronizer disposed between the 4th gear and the 8th gear for synchronizing power transmission selectively to the 4th gear and the 8th gear.

The second synchro portion is disposed between the seventh gear and the third gear and synchronously synchronizes power transmission to the seventh gear and the third gear; A second-2 synchro disposed between the third gear and the first gear for synchronizing power transmission to the first gear; And a second to third synchronizer disposed between the second gear and the sixth gear for synchronizing power transmission selectively to the second gear and the sixth gear.

The seventh gear and the ninth gear are arranged at the same position, and power is transmitted through the first input portion.

And the gear train of the fifth gear and the third gear is disposed at the same position, and the power is transmitted through the first input portion.

And the gear trains of the second gear and the fourth gear are disposed at the same position, and the power is transmitted through the second input portion.

And the gear train of the sixth gear and the gear of the eighth gear are disposed at the same position, and the power is transmitted through the second input portion.

And the first gear is connected to the R gear.

Further, the reverse first-stage shift is performed such that power is sequentially transmitted to the second output portion through the second input portion, the fourth gear, the R gear through the first synchro portion, the first gear, and the second synchro portion .

The dual clutch transmission according to the present invention can minimize the shaft and the gear train without increasing the total length, thereby achieving the forward nine steps and the reverse one step.

Therefore, it is possible to suppress the increase in the weight of the transmission, thereby reducing the manufacturing cost and the number of parts, and improving the fuel consumption.

1 is a schematic diagram illustrating a dual clutch transmission according to an embodiment of the present invention.
2 is a view schematically showing an operating relationship between a speed change stage and a synchromesh of a dual clutch transmission according to an embodiment of the present invention.

Hereinafter, a dual clutch transmission according to an embodiment of the present invention will be described with reference to 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.

Further, the terms described below are 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.

FIG. 1 is a schematic view of a dual clutch transmission according to an embodiment of the present invention, and FIG. 2 is a schematic view illustrating an operating relationship between a speed change stage and a synchromesh of a dual clutch transmission according to an embodiment of the present invention.

1 and 2, a dual clutch transmission according to an embodiment of the present invention includes a first input unit ips1, a second input unit ips2, a first output unit ops1, An output unit ops2, a first synchronizing unit S10, and a second synchronizing unit S20.

An input shaft for transmitting the power of the engine 100 is divided into two axes of a first input unit ips1 and a second input unit ips2 and the first input unit ips1 is provided with a hole means gear, (ips2). Then, the shifting is realized by alternately operating the first clutch Cl and the second clutch C2. The first output unit (ops1) and the second output unit (ops2) are respectively provided with three synchro devices to enable 9-speed shifting.

The first clutch C1 is engaged with the shift corresponding to the odd gear position, and the second clutch C2 is engaged with the shift corresponding to the even gear.

The first input unit ips1 and the second input unit ips2 are connected to the engine 100 to receive power. At this time, the power is selectively transmitted or interrupted by the first clutch C1 and the second clutch C2. For example, the power transmitted from the engine 100 by the operation of the first clutch C1 is selectively supplied toward the first input section ips1. Further, the power transmitted from the engine 100 by the operation of the second clutch C2 is selectively supplied toward the second input section ips2.

The first input unit ips1 and the second input unit ips2 are arranged side by side so that the power can be stably transmitted. In the present invention, the first input unit ips1 and the second input unit ips2 are disposed on a coaxial line in the form of a double pipe by a hollow shaft. This can minimize installation space.

The first input section ips1 is connected to the ninth gear 9 mounted on the first output section ops1 and the seventh gear 7 connected to the fifth gear 5 and mounted on the second output section ops2 , The third gear (3) and the first gear (1) are connected.

The second input section ips2 is connected with the fourth stage gear 4 mounted on the first output section ops1 and the second stage gear 2 mounted on the second output section ops2, And the six-speed gear 6 are connected.

The first output unit ops1 and the second output unit ops2 receive power through the first input unit ips1 or the second input unit ips2 and output the power. For example, the first output unit ops1 and the second output unit ops2 may be positioned in parallel with the first input unit ips1 and the second input unit ips2.

The first output unit ops1 receives and outputs the power through the first and second input units ips1 and ips2 and outputs the power to the first output unit ops1 via the ninth gear 9, the fifth gear 5, the R gear G, A fourth gear (4) and an eighth gear (8) are mounted. The eighth gear 8 and the fourth gear 4 are connected directly to the first input unit ips1 and the eighth gear unit 8 and the fourth gear unit 4 are connected to the second input unit ips2, Directly connected. And the R-stage gear R is engaged with the first gear 1 of the second output portion ops2.

Among the three synchronous devices provided in the first output unit ops1, the two synchronous devices are configured to be able to synchronize with the first output unit ops1 and each gear, and the other synchronous device is configured such that the two gears are synchronized with each other .

The second output unit ops2 receives and outputs the power via the first and second input units ips1 and ips2 and outputs the seventh gear 7, the third gear 3, the first gear 1, The second gear 2 and the sixth gear 6 are mounted. The seventh gear 7, the third gear 3 and the first gear 1 are directly connected to the first input section ips1 and the second gear 2 and the sixth gear 6 are connected 2 input unit (ips2).

On the other hand, a parking gear (not shown) for fixing the output is mounted on the first output unit ops1. The parking gear may be connected to the second input unit ips2 to limit power transmission. The first transmission gear og1 and the second transmission gear og2 are mounted on the first output unit ops1 and the second output unit ops2 for outputting the final output to the differential unit DIFF.

Therefore, the first input unit ips1 and the second input unit ips2 are disposed on the same axis as the input of the engine 100, the first clutch C1 transmits power to the first input unit ips1, Power is transmitted to the second input section ips2 by the second clutch C2. The first clutch C1 engages the shifting of the hole means gear, and the second clutch C2 engages the shifting of the even-numbered gear. The first synchro part S10 and the second synchro part S20 mounted on the first output part ops1 and the second output part ops2 respectively transmit the power transmitted through the gears to the first output part ops1 ) And the second output unit (ops2), respectively.

The first synchro section S10 is mounted on the first output section ops1 and is connected to the first output section ops1 via the ninth gear 9, the fifth gear 5, the R gear R, the fourth gear 4, (8). In this case, the 9th gear (9) is a gear that is driven when the forward 9-speed shift is performed, the 5th gear (5) is a gear that is driven when the forward 5-speed shift, and the Rth gear The fourth gear (4) is a gear that is driven in the forward four-speed range, and the eighth gear (8) is a gear that is driven in the forward eight-speed range.

The first synchronizing unit S10 includes a first-first synchronizing unit S11, a first-second synchronizing unit S12, and a 1-3 second synchronizing unit S13. Two of them are capable of bi-directional synchronization, and the other one is capable of one-way synchronization.

The first-first synchro section S11 is disposed between the ninth gear 9 and the fifth gear 5 and is mounted on the first output section ops1. The first-first synchro section S11 is selectively connected to the ninth gear 9 and the fifth gear 5 and the power of the ninth gear 9 or the fifth gear 5 is transmitted to the first output section gt; ops1. < / RTI > The first-first synchro section S11 is shifted to the right to synchronize the fifth-stage gear 5 and the first output section ops1, and is shifted to the left side so that the first-stage gear 9 and the first output section ops1, Can be synchronized.

The first-second synchro portion S12 is disposed between the fifth-stage gear 5 and the R-stage gear R and is connected to the fourth gear 4. [ The first-second synchro portion S12 is selectively connected to the R-stage gear R to synchronize the rotation of the R-stage gear R and the first output portion ops1. The first-second synchro portion S12 may be moved to the right to synchronize the first-stage output Rs and the first output portion ops1.

The first-third synchro portion S13 is disposed between the fourth gear 4 and the eighth gear 8 and is mounted on the first output portion ops1. The 1-3 th synchronized portion S13 is selectively connected to the 4th gear 4 and the 8th gear 8 so that the power of the 4th gear 4 or the 8th gear 8 is transmitted to the 1st output portion gt; ops1. < / RTI > The first to third synchro units S13 are shifted to the right to synchronize the eighth gear 8 and the first output unit ops1 and are shifted to the left to rotate the fourth gear gear 4 and the first output unit ops1, Can be synchronized.

The second synchro section S20 is mounted on the second output section ops2 and is connected to the second output section ops2 via the seventh gear 7, the third gear 3, the first gear 1, the second gear 2, (6). In this case, the seventh gear (7) is a gear to be driven in the forward 7-speed shift, the third gear (3) is a gear to be driven in the forward three-speed shift, and the first gear , The second gear (2) is a gear that is driven when the forward two-speed shift is performed, and the sixth gear (6) is a gear that is driven when the forward six speed gear is engaged.

The second synchronizing unit S20 includes a second-1 synchronizing unit S21, a second-second synchronizing unit S22, and a second-third synchronizing unit S23. Two of them are capable of bi-directional synchronization, and the other one is capable of one-way synchronization.

The second-first synchro section S21 is disposed between the seventh gear 7 and the third gear 3 and is mounted on the second output section ops2. The second-first synchro portion 21 is selectively connected to the seventh gear 7 and the third gear 3, and the power of the seventh gear 7 or the third gear 3 is transmitted to the second output portion gt; ops2. < / RTI > The second-first synchro section S21 is shifted to the right to synchronize the third-stage gear 3 and the second output section ops2, and is shifted to the left to shift the seventh gear 7 and the second output section ops2, .

The second-second synchro section S22 is disposed between the third gear 3 and the first gear 1 and is mounted on the second output section ops2. The second-second synchro section S22 is selectively connected to the first-stage gear 1 so that the power of the first-stage gear 1 is output through the second output section ops2. The second-second synchro section S22 is shifted to the right to synchronize the first-stage gear 1 and the second output section ops2.

The second-third synchronizer section S23 is disposed between the second-stage gear 2 and the sixth-stage gear 6 and is mounted on the second output section ops2. The second to third synchronizing section S23 is selectively connected to the second gear and the sixth gear so that the power of the second gear or the sixth gear is transmitted to the second output gt; ops2. < / RTI > The second to third synchro unit S23 is shifted to the right to synchronize the sixth gear 6 and the second output unit ops2 and is shifted to the left to shift the second gear unit 2 and the second output unit ops2, .

On the other hand, the gear trains of the seventh gear 7 and the ninth gear 9 are disposed at the same position, and the power is transmitted through the first input portion ips1. Further, the gear trains of the fifth gear 5 and the third gear 3 are arranged at the same position, and they are transmitted through the first input section ips1. The gear trains of the second gear stage 2 and the fourth gear stage 4 are arranged at the same position, and they are transmitted through the second input section ips2. Further, the gear trains of the sixth gear 6 and the eighth gear 8 are disposed at the same position, and they are transmitted through the second input portion ips2. That is, the gear trains of the seventh gear 7 and the ninth gear 9, the gear trains of the fifth gear 5 and the third gear 3 and the gear trains of the second gear 2 and the fourth gear 4 The gear train and the gear train of the 6th gear 6 and the 8th gear 8 can be matched and the power can be transmitted through the same input gear so that the total length can be reduced and components can be minimized.

The first-stage gear 1 is connected to the R-stage gear R and the second clutch C2 is operated to rotate the second input section ips2 in order to operate the R-stage gear R. The fourth stage gear 4 is rotated by the rotation of the second input section ips2 and the R stage gear R is rotated in synchronism with the fourth gear stage 4 by the operation of the first-second synchronizing section S12. The first stage gear 1 is rotated and the first stage gear 1 is rotated by the operation of the second-second synchronizing portion S22, Since the second output unit ops2 is synchronized with the second output unit ops2, the R stage is implemented through the second output unit ops2.

That is, the reverse 1-speed shift is performed by the second input section ips2, the fourth gear 4, the R gear through the first synchronizer section S10, the first gear 1, S20 to the second output unit ops2.

Hereinafter, the operation of the dual clutch transmission according to one embodiment of the present invention will be described in detail with reference to the accompanying drawings.

First, during reverse 1-speed shifting, the second clutch C2 is driven to transmit the power of the engine 100 to the second input unit ips2. The fourth-stage gear 4 is rotated by the rotation of the second input section ips2 and the first-second synchro section S12 is engaged with the R-stage gear R. Thus, R are synchronized. The first-stage gear 1 is rotated because the R-stage gear R is engaged with the first-stage gear 1 and rotated. Since the second synchro section S22 is engaged with the first gear 1, output of the reverse first gear is made through the second output section ops2.

The first clutch C1 is driven to transmit the power of the engine 100 to the first input unit ips1. Then, the second-second synchro section S22 is engaged with the first gear 1. That is, when the first clutch C1 is driven and power is transmitted to the first input section ips1, the first-stage gear 1 is rotated. At this time, when the second-second synchro section S22 is engaged with the first gear 1, the power of the first gear 1 is transmitted to the second output section ops2.

During forward forward two-speed shifting, the second clutch C2 is driven to transmit the power of the engine 100 to the second input section ips2. Then, the second-third synchro portion (S23) is engaged with the second gear (2). That is, when the second clutch C2 is driven and power is transmitted to the second input section ips2, the second-stage gear 2 connected to the second input section ips2 is rotated. At this time, when the second-third synchro unit (S23) is engaged with the second gear (2), the power of the second gear (2) is transmitted to the second output (ops2).

During forward three-speed shifting, the first clutch C1 is driven to transmit the power of the engine 100 to the first input unit ips1. Then, the second-first synchro section S21 is engaged with the third-stage gear 3. That is, when the first clutch C1 is driven and power is transmitted to the first input section ips1, the third-stage gear 3 is rotated. At this time, when the second-first synchro section S21 is engaged with the third-stage gear 3, the power of the third-stage gear 3 is transmitted to the second output section ops2.

During forward four-speed shifting, the second clutch C2 is driven to transmit the power of the engine 100 to the second input section ips2. Then, the 1st-1st synchro section S13 is engaged with the 4th gear 4. That is, when the second clutch C2 is driven and power is transmitted to the second input section ips2, the fourth gear 4 is rotated. At this time, when the first-third synchro section S13 is engaged with the fourth-stage gear 4, the power of the fourth-stage gear 4 is transmitted to the first output section ops1.

In forward five-speed shifting, the first clutch C1 is driven to transmit the power of the engine 100 to the first input unit ips1. Then, the first-first synchro section S11 is engaged with the fifth-stage gear 5. That is, when the first clutch C1 is driven and power is transmitted to the first input section ips1, the fifth-stage gear 5 is rotated. At this time, when the first-first synchro section S11 is engaged with the fifth-stage gear 5, the power of the fifth-stage gear 5 is transmitted to the first output section ops1.

During forward six-speed shifting, the second clutch C2 is driven to transmit the power of the engine 100 to the second input section ips2. Then, the 2nd-2nd synchro unit (S23) is engaged with the 6th gear (6). That is, when the second clutch C2 is driven and power is transmitted to the second input section ips2, the sixth gear 6 is rotated. At this time, when the second to third synchro section (S23) is engaged with the sixth gear (6), the power of the sixth gear (6) is transmitted to the second output section (ops2).

In the forward 7-speed shift, the first clutch C1 is driven to transmit the power of the engine 100 to the first input unit ips1. Then, the second-first synchro section S21 is engaged with the seventh gear 7. [ That is, when the first clutch C1 is driven and power is transmitted to the first input section ips1, the seventh gear 7 is rotated. At this time, when the second-first synchro section S21 is engaged with the seventh gear 7, the power of the seventh gear 7 is transmitted to the second output section ops2.

The second clutch C2 is driven to transmit the power of the engine 100 to the second input unit ips2. Then, the 1st-1st synchro section S13 is engaged with the 8th gear 8. As shown in Fig. That is, when the second clutch C2 is driven and power is transmitted to the second input section ips2, the eighth gear 8 is rotated. At this time, when the first-third synchro portion S13 is engaged with the eighth gear 8, the power of the eighth gear 8 is transmitted to the first output portion ops1.

During forward nine-speed shifting, the first clutch C1 is driven to transmit the power of the engine 100 to the first input section ips1. Then, the first-first synchro section S11 is engaged with the ninth gear 9. That is, when the first clutch C1 is driven and power is transmitted to the first input section ips1, the ninth gear 9 is rotated. At this time, when the first-first synchro section S11 is engaged with the ninth gear 9, the power of the ninth gear 9 is transmitted to the first output section ops1.

The dual clutch transmission according to the embodiment of the present invention can minimize the shaft and the gear train without increasing the total length, so that the forward 9-speed and reverse 1-speed can be achieved. Therefore, the increase in weight of the transmission can be suppressed, the manufacturing cost and the number of parts can be reduced, and the fuel consumption can be improved.

While the present invention has been particularly shown and described with reference to exemplary embodiments thereof, it will be understood by those skilled in the art that various changes and modifications may be made without departing from the scope of the invention as defined by the appended claims. will be. Accordingly, the true scope of the present invention should be determined by the following claims.

C1, C2: First and second clutches ips1, ips2: First and second input portions
ops1, ops2: first and second output units S10:
S11: 1st-1st synchro unit S12: 1st-2nd synchro unit
S13: 1st to 1st synchro section S20: 2nd synchro section
S21: 2-1 Synchro S22: 2-2 Synchro part
S23: 2nd to 3rd synchronous R: Rth gear
1: 1st gear 2: 2nd gear
3: 3rd gear 4: 4th gear
5: 5th gear 6: 6th gear
7: 7th gear 8: 8th gear
9: 9th gear 100: engine

Claims (11)

A first input portion for selectively transmitting power from the engine by the first clutch;
A second input portion for selectively transmitting power from the engine by a second clutch;
A first output unit for receiving and outputting power through the first and second input units and having a 9th gear, a 5th gear, an R gear, a 4th gear, and an 8th gear;
A second output unit for receiving and outputting power through the first and second input units and including a seventh gear, a third gear, a first gear, a second gear, and a sixth gear;
A first synchronous portion mounted on the first output portion and selectively synchronized with the ninth gear, the fifth gear, the R gear, the fourth gear, and the eighth gear; And
And a second synchronizing portion mounted on the second output portion and selectively synchronized with the seventh gear, the third gear, the first gear, the second gear, and the sixth gear,
And is capable of shifting to the forward nine-speed range and the reverse-speed one-speed range,
The first synchro part is disposed between the ninth gear and the fifth gear and synchronizes the power of the ninth gear and the fifth gear so as to selectively transmit power;
A second-second synchronizer disposed between the fifth gear and the R gear and connected to the fourth gear to synchronize power transmission selectively to the R gear; And
And a first-third synchronizer disposed between the fourth gear and the eighth gear for synchronizing power transmission selectively to the fourth gear and the eighth gear. .
The method according to claim 1,
Wherein the first input portion is connected to the ninth gear, the fifth gear, the seventh gear, the third gear, and the first gear,
And the second input portion is connected to the fourth gear, the eighth gear, the second gear, and the sixth gear.
The method according to claim 1,
Wherein the first input portion and the second input portion are disposed on a coaxial line in the form of a double pipe using a hollow shaft.
delete The image forming apparatus according to claim 1,
A second-1 synchro arrangement disposed between the seventh gear and the third gear to synchronize power transmission selectively to the seventh gear and the third gear;
A second-2 synchro disposed between the third gear and the first gear for synchronizing power transmission to the first gear; And
And a second to third synchronizer disposed between the second gear and the sixth gear to synchronize power transmission selectively to the second gear and the sixth gear.
The method according to claim 1,
And the gear train of the seventh gear and the ninth gear are disposed at the same position, and the power is transmitted through the first input portion.
The method according to claim 1,
And the gear train of the fifth gear and the third gear is disposed at the same position, and the power is transmitted through the first input portion.
The method according to claim 1,
Wherein the gear trains of the second gear and the fourth gear are disposed at the same position and the power is transmitted through the second input portion.
The method according to claim 1,
Wherein the gear train of the sixth gear and the gear of the eighth gear are disposed at the same position and the power is transmitted through the second input portion.

The method according to claim 1,
And the first gear is connected to the R gear.
11. The method of claim 10,
The reverse 1-speed shifting,
And the power is sequentially transmitted to the second output portion through the second input portion, the fourth gear, the R gear through the first synchro portion, the first gear, and the second synchro portion.
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Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR20200068403A (en) 2018-12-05 2020-06-15 현대 파워텍 주식회사 Two way clutch for multi speed transmission and control method thereof

Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20120272760A1 (en) 2011-04-27 2012-11-01 GM Global Technology Operations LLC Dual clutch multi-speed transmission

Patent Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20120272760A1 (en) 2011-04-27 2012-11-01 GM Global Technology Operations LLC Dual clutch multi-speed transmission

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR20200068403A (en) 2018-12-05 2020-06-15 현대 파워텍 주식회사 Two way clutch for multi speed transmission and control method thereof

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