WO2013168914A1

WO2013168914A1 - Automatic manual transmission

Info

Publication number: WO2013168914A1
Application number: PCT/KR2013/003429
Authority: WO
Inventors: 김세철
Original assignee: 테너지
Priority date: 2012-05-10
Filing date: 2013-04-23
Publication date: 2013-11-14
Also published as: KR20130126117A

Abstract

The present invention relates to an automatic manual transmission, comprising a first transmission gear unit (10) which is connected to the turbine of a torque converter that is connected to an engine so as to be driven by the engine; a second transmission gear unit (20) which is connected to the impeller of the torque converter; and an auxiliary input gear unit(30). The first transmission gear unit (10) increases or decreases the rotational speed of the engine (1) by a first stage gear ratio so as to transmit the power of the engine, which is transmitted through the torque converter, to a driving wheel (50). The second transmission gear unit (20) is directly connected to the engine (1) and increases or decreases the rotational speed of the engine (1) by a predetermined gear speed ratio through each transmission gear so as to transmit the power of the engine to a driving wheel (50). The auxiliary input gear unit (30) controls an auxiliary gear (31) connected to an output shaft (40) and a second input shaft (21) by the clutch (32), wherein the rotational force of the engine (1) is transmitted to the driving wheel (50) through the auxiliary gear (31) and the clutch (32) when a transmission operation is carried out in the first transmission gear (10) and the second transmission gear (20) while shifting gears.

Description

Automated manual gearbox

The present invention relates to an automatic manual transmission, and more particularly, a torque converter is mounted and the engine transmits power through a first gear connected to a turbine of the torque converter, so that smooth driving at low speed is possible and shifting is performed. In the meantime, the power of the engine is transmitted to the driving wheel through the auxiliary gear by the connection of the clutch installed separately, and relates to an automated manual transmission in which the shifting feeling is improved.

In general, a transmission is a device that converts power generated from an engine to a required rotational force according to a speed. As a vehicle speeds up, the transmission rotates the wheel at a speed required for driving the vehicle. Allows operation within a range of numbers.

Such a transmission includes a manual transmission in which a driver directly performs a clutch pedal to perform a shift, and an automatic transmission in which a shift is automatically performed to suit a driving condition of an automobile using an electronic device.

On the other hand, the automatic manual transmission is a transmission that realizes the advantages of the manual transmission and the automatic transmission. Since operation during operation is the same as the automatic transmission, it provides driving convenience and does not require power such as clutch operated hydraulic pressure while driving. High efficiency is advantageous in terms of fuel efficiency.

An automated manual transmission is provided with a hydraulic device or an electric motor for automatic gear shifting of the transmission.

When the gear shift is completed by such a hydraulic device or an electric motor, the rotational force of the engine is transmitted to the transmission by the operation of the clutch, and the rotational force of the engine is increased or reduced through the shifted gears and transmitted to the driving wheels.

The above-described technical configuration is a background art for helping understanding of the present invention, and does not mean a conventional technology well known in the art.

Conventional automated manual transmissions have the disadvantage that the acceleration performance is lowered because the rotational force of the engine is not transmitted to the drive wheels during gear shifting.

In addition, although the clamping of the clutch is automated, it is difficult to properly operate according to the change of the operating load or the inclination angle of the inclination due to the wear of the clutch, so that the vehicle is pushed backward at the start of the inclination or the clutch disc is worn out. There is a problem that the durability is poor.

In order to achieve the above object, the present invention includes a first transmission gear unit and a second transmission gear unit for transmitting power to a driving wheel by increasing or decreasing the rotational speed of the engine; And an auxiliary input gear unit configured to transmit the rotational force of the engine to a driving wheel during the shift operation in the shift gear unit.

The first transmission gear unit includes a first input shaft connected to the turbine of the torque converter; A first gear installed on the first input shaft and the output shaft to transmit power; And a synchronizer for controlling the first gear and the output shaft.

A second input shaft connected to an impeller of a torque converter which is connected to the engine and is rotated so as to always rotate in the same manner as the engine; A plurality of transmission gears are installed on the second input shaft and the output shaft.

The auxiliary gear input unit is provided with an auxiliary gear on the second input shaft and the output shaft, characterized in that the clutch is installed on either side of the auxiliary gear.

The present invention has been made in order to improve the above problems, the power is transmitted through the torque converter at the start to improve the ride comfort during smooth start and low speed driving, the gear of the engine is separately installed during gear shifting By transmitting to the drive wheels through the transmission performance is improved, and at the same time, in addition to the torque converter provides an automated manual transmission configured to be shifted using only one clutch.

1 is a view illustrating a state in which power is transmitted through a first transmission gear unit in an automatic manual transmission according to an embodiment of the present invention.

FIG. 2 is a view illustrating a state in which power is transmitted through the first transmission gear unit and the auxiliary gear in the automated manual transmission according to one embodiment of the present invention.

3 is a view illustrating a state in which power is transmitted through an auxiliary input unit in an automatic manual transmission according to an embodiment of the present invention.

4 is a view illustrating a state in which power is transmitted through a second gear of a second transmission gear unit in an automatic manual transmission according to an embodiment of the present invention.

* Description of the symbols for the main parts of the drawings *

DESCRIPTION OF SYMBOLS 1 Engine 2 Drive plate 3 Torque converter impeller 4 Torque converter turbine 5 Damper spring 6 Stator 7 One-way clutch 8 Torque converter housing 9 Oil seal

DESCRIPTION OF SYMBOLS 10 1st transmission gear part 11 1st input shaft 12 1st gear 13 1/2 1/2 synchronizer

20: 2nd gearshift gear 21: 2nd input shaft 22: 2nd gear 23: 3rd gear 24: 4th gear 25: 3/4 gear synchronizer 26: 5th gear 27: 6th gear 28: 5/6 Stage synchronizer

30: auxiliary input gear portion 31: auxiliary gear 32: clutch

40: output shaft 50: driving wheel 51: differential device

Hereinafter, with reference to the accompanying drawings will be described an embodiment of the automated manual transmission according to the present invention.

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.

In addition, terms to be described later are terms defined in consideration of functions in the present invention, which may vary according to the intention or custom of a user or an operator.

Therefore, definitions of these terms should be made based on the contents throughout the specification.

1, 2, 3 and 4, the automatic manual transmission according to an embodiment of the present invention, the first transmission gear unit 10, the second transmission gear unit 20, the auxiliary input gear unit ( 30).

The first transmission gear unit 10 transmits the power of the engine transmitted through the torque converter to the driving wheel 50 by increasing or decreasing the rotational speed of the engine 1 by a constant gear speed ratio.

The second transmission gear portion 20 is directly connected to the engine 1 and transmits the power of the engine to each of the transmission gears by increasing or decreasing the rotational speed of the engine 1 by a constant gear speed ratio. do.

The auxiliary input gear unit 30 intermittently clamps the auxiliary gear 31 and the second input shaft 21 connected to the output shaft 40 with the clutch 32, and at the time of gear shifting, the first shift gear unit 10 or the first gear. While the shift operation is performed in the two-speed gear unit 20, the rotational force of the engine 1 is transmitted to the driving wheels 50 through the auxiliary gear 31 and the clutch 32.

The first transmission gear unit 10 includes a first input shaft 11, a first gear 12, and a synchronizer 13. The first input shaft 11 is connected to the turbine 4 of the torque converter, and the first gear 11 is connected to the first input shaft 11. The 1/2 stage synchronizer 13 connects the first gear 12 to the output shaft so that power is transmitted.

Thus, if the 1/2 stage synchronizer 13 is connecting the first gear (see Fig. 1), the first gear is connected to the turbine 4 of the torque converter and is proportional to the rotational speed of the drive wheel 50. To rotate. That is, in the same state as in the case of the first gear shifting of the general automatic transmission, it is possible to maintain the creep running or the stopped state during starting by the action of the torque converter.

The second transmission gear portion 20 includes a second input shaft 21 directly connected to the impeller 3 of the torque converter, each

transmission gear

22, 23, 24, 26, 27, and each

synchronizer

13, 25, 28. It is composed of

Each

transmission gear

22, 23, 24, 26, 27 from the second to the sixth stage is provided on the second input shaft 21 and the output shaft 40, and each

synchronizer

13, 25, 28 is provided. In the same manner as in the manual transmission, each

transmission gear

22, 23, 24, 26, 27 is intermittently engaged with the second input shaft 21 and the output shaft 40.

On the other hand, each

synchronizer

13, 25, 28 may be replaced with a dog clutch.

The auxiliary input gear unit 30 is composed of an auxiliary gear 31 and a clutch 32.

The auxiliary gear 31 is set to have a smaller gear ratio on the second input shaft 21 than the sixth gear, and the clutch 32 interrupts the auxiliary gear 31 and the second input shaft 21.

Referring to the operation of the automatic manual transmission according to an embodiment of the present invention having the structure as described above are as follows.

First, in the state where the engine is started in the vehicle stop state, when the gear is neutral, the output shaft 40 is stopped together with the driving wheel 50, and the second connected to the impeller 3 and the impeller 3. The input shaft 21, the 3/4 stage synchronizer 25 and the 5/6 stage synchronizer 28 rotate at the same rotational speed as the engine 1. On the other hand, the first input shaft 11 and the first gear 12 connected to the first input shaft 11 rotate at the same rotational speed as the turbine 4.

At this time, when the shift lever is operated from the neutral to the forward driving stage D, the 1/2 stage synchronizer 13 connects the first gear to complete the shift to the first stage.

When the vehicle starts after the shift is completed, the same conditions as in the normal automatic transmission are obtained.

On the other hand, when starting from a driving road or a snowy road where slippage occurs on the road due to excessive torque, the clutch 32 is operated in a state where the first gear 12 is connected so that a part of rotational torque is applied to the auxiliary gear 31. By transmitting through), it is possible to implement the same function as the start from the second gear in a conventional automatic transmission.

In the case of shifting to the second gear while driving in the first gear, the clutch 32 is operated first, so that the speed of the second input shaft 21 is reduced by the gear ratio of the auxiliary gear 31. (Figure 2)

Increasing the transmission torque in the clutch 32 starts to decrease the rotational speed of the engine 1, at which time the 1/2 stage synchronizer 13 is moved to neutral to disconnect the first gear 12. (Figure 3)

When the first gear 12 is disconnected, the transmission torque at the clutch 32 is controlled to be at a predetermined level. If the rotational speed of the engine 1 decreases while the rotational speed of the second gear 22 is equal to the output shaft 40 while the state is maintained, the 1/2 stage synchronizer 12 is moved to the second stage side. By moving, the second gear 22 and the output shaft 40 are connected.

When the second gear 22 is connected to the output shaft 40 and the clutch 32 is disconnected at the same time, when the second gear 22 is in the connected state, the second gear shift is completed (Fig. 4).

When shifting to the upper gear stage, such as shifting from the second gear to the third gear, shifting from the third gear to the fourth gear, and the like, shifting is performed in the same manner as described above.

In shifting to the lower gear stage, for example, shifting from 6 to 5 gears, when the clutch 32 first operates for gear shifting, power is started to be transmitted through the auxiliary gear 21, and the clutch 32 Increasing the transmission torque at) starts to decrease the rotational speed of the engine 1, at which time the 5 / 6-stage synchronizer 28 is moved to neutral to disconnect the 6-speed gear 27.

When the sixth gear 27 is disconnected, the transmission torque in the clutch 32 is reduced so that slippage occurs in the clutch 32, so that the rotational speed of the engine 1 is increased. While maintaining the state, when the rotational speed of the engine 1 increases and the rotational speed of the fifth gear 26 is equal to the output shaft 40, the 5 / 6-stage synchronizer 28 is moved to the fifth stage side. To connect the fifth gear 26 and the output shaft 40.

The fifth gear 26 is connected to the output shaft 40 and the fifth gear is completed by disconnecting the clutch 32.

When shifting to the lower gear stage, such as shifting from 5 gears to 4 gears, shifting from 4 gears to 3 gears, the gear shift is made in the same manner as described above.

When the speed ratio of the auxiliary gear 31 is set smaller than that of the sixth gear 28, power can be transmitted through only the auxiliary gear 31 so as to be operated as another gear, that is, the seventh gear.

In addition, in order to reduce the total length of the transmission, the auxiliary gear 31 installed on the second input shaft 21 may be installed to engage with the final gear installed integrally with the output shaft.

As described above, in the present invention, power is transmitted through each shift gear when the shift period is not, and power is transmitted through the auxiliary gear 31 while the gear shift is in progress. Since it becomes possible, the run up of the engine 1 will not occur during a shift, and the vibration and noise which a driver will feel will become small.

Although the present invention has been described with reference to the embodiments shown in the drawings, it should be noted that the present invention is not limited to the embodiments shown in the drawings. The invention extends to all embodiments modified from the embodiments shown in the drawings within the scope defined in the claims.

In the automobile transmission, it is possible to configure an automatic transmission that can be reduced in weight and cost, and thus can be used as a transmission of all vehicles since it can replace an existing automatic transmission.

Claims

A torque converter connected to the engine and driven by the engine;

A first gear connected to a turbine of the torque converter and a first gear connected to a first input shaft;

A second input shaft connected to an impeller of the torque converter and one or more transmission gears connected to a second input shaft;

An auxiliary gear connected to the second input shaft;

A clutch for regulating the auxiliary gear and the second input shaft;

In the transmission consisting of an output shaft on which the transmission gear and the auxiliary gear is installed,

An automatic manual transmission characterized in that the rotational force of the engine is transmitted to the driving wheel through the auxiliary gear by the operation of the clutch during the gear shift.
The method of claim 1, wherein when the vehicle starts, the clutch is operated in a state in which the vehicle is shifted to the first gear so that a part of the driving force of the engine is transmitted through the auxiliary gear. Automated manual transmission, characterized in that to transmit a small drive torque as.
The automated manual transmission according to claim 1, wherein the auxiliary gear is always connected to the second input shaft, and the clutch intermittently regulates the output shaft and the auxiliary gear.
The automated manual transmission of claim 1, wherein the auxiliary gear is installed on the second input shaft and the differential device, and both auxiliary gears are connected by a chain.
5. The automated manual transmission as claimed in claim 4, wherein a clutch intervenes with the auxiliary gear and the differential provided in the differential device, instead of the clutch with the auxiliary gear and the second input shaft.
The transmission ratio according to any one of claims 1, 3, 4, 5 or 6, wherein the transmission ratio transmitted through the auxiliary gear is greater than the transmission ratio of the uppermost stage of the transmission gear installed on the second input shaft. Automated manual transmission, characterized in that the small setting.
7. The automated manual transmission according to any one of claims 1, 3, 4, 5 or 6, wherein after the shift is completed, power from the engine is transmitted only through the auxiliary gear even while driving. .
8. The engine of claim 7, wherein the auxiliary gear is provided on a second output shaft and a second input shaft separately provided between the second input shaft and the differential device, and power of the engine is applied to the second input shaft and the second input shaft during gear shifting. Automated manual transmission, characterized in that the transmission to the drive wheels through the output shaft and differential.