KR100851373B1 - Automatic selecting and shifting control device for Manual Transmission - Google Patents

Abstract

An automatic shift operation apparatus for a manual transmission according to the present invention includes a select shaft and a select actuator for linearly moving the select shaft, a control finger installed on the select shaft and selecting one of a plurality of shift lugs; A shift shaft and a shift actuator for linearly moving the shift shaft, and installed on the shift shaft so as to shift one of the shift lugs while rotating the control finger about the select shaft so as to shift each shift stage. It is configured to include a shift cap, so that the shift operation is possible by using two actuators rather than a mechanical connection method, the overall configuration is simplified, the layout structure is advantageous, in particular, the shift operation feeling is improved and shift operation Increases accuracy and reliability Have.

Shift lever, actuator, control finger, select, shift, shift lug

Description

Automatic transmission and shifting control device for manual transmission

1 is a perspective view showing a shift operation mechanism configured on the outside of the manual transmission;

Figure 2 is a perspective view showing a conventional shift operation mechanism configured in the interior of the manual transmission,

3 is a perspective view showing an automatic shift operation apparatus for a manual transmission according to the present invention;

4 is a cross-sectional configuration view taken from the direction “A” of FIG. 2, illustrating a shifting operation state;

FIG. 5 is a cross-sectional view taken from the direction “B” of FIG. 2 and illustrating a selecting operation state;

Figure 6 is a perspective view showing the main part of the automatic shift operation apparatus of the present invention,

Figure 7 is a perspective view for showing the selecting operation structure in the automatic shift operation apparatus of the present invention,

8 is a perspective view for showing a shifting operation structure in the automatic shift control device of the present invention.

<Explanation of symbols for the main parts of the drawings>

20: select actuator 25: select shaft

26: shaft sleeve 30: shift actuator

35: shift shaft 37: shaft guide

37a: groove 40: control finger

40a: lug coupling part 40b: ball part

45: shift cap 45a: fixed portion

45b: socket portion 50: shift lug

52: shift rail 53: shift fork

55: case 57: frame

58: guide bolt 59: fixing bolt

60: poppet mechanism 61: poppet ball bearing

70: interlock plate 75: neutral spring

The present invention relates to a shift operation mechanism of a manual transmission, and more particularly, to an automatic shift operation apparatus for a manual transmission that can automatically operate a control finger using two actuators.

Since the driving force of the vehicle varies greatly depending on the amount of load loaded on the vehicle, the situation of the road, the traveling speed, and the like, the vehicle is provided with a transmission in order to convert the power of the engine into an appropriate driving force. Such transmissions are classified into manual transmissions and automatic transmissions. Of course, there are also continuously variable transmissions, but are typically classified into this manual transmission and automatic transmission.

The manual transmission is composed of an external gear set and a mechanical clutch. The transmission structure is simple, so it is less likely to break down, light in weight, and is directly connected by a mechanical clutch. On the other hand, the driving is possible, while inexperienced driving is difficult to operate, and if the user misses the proper transmission timing, there is a disadvantage that the fuel economy worse than the automatic transmission.

In contrast, the automatic transmission is composed of a torque converter and an internal gear set, and it is easy to operate, and has an advantage of higher initial oscillation force and maximum speed. However, due to the complicated structure, it is prone to failure and heavy weight. In general, the fuel economy is poorer than the manual transmission.

Currently, automatic transmissions are widely used in Korea, but manual transmissions are still used in Europe, where economical priority is placed, and the use of automated manual transmissions that compensate for the shortcomings and pursue the advantages is also gradually increasing. .

An automatic manual transmission is a transmission configured to have a convenient operation structure and a transmission algorithm of an automatic transmission while maintaining a simple structure and economical fuel economy of a manual transmission composed of an external gear set and a mechanical clutch.

The automatic manual transmission is configured to automatically release the clutch and operate the shift lever by the TCU recognizing the RPM of the vehicle and the proper shift timing in the structure of the manual transmission. Recently published data also show that the well-structured logic of the TCU can provide a 5% advantage over the average fuel economy of a manual transmission.

Hereinafter, a shift operation apparatus provided in a vehicle equipped with a manual transmission will be described.

In the manual transmission, as shown in FIG. 1, the shift cable 2 and the select cable 3 connected to the transmission 4 move according to the operation of the shift lever 1 next to the driver's seat, and the two cables ( 2 and 3 are shifted by moving the shift lever 6 and the select lever 5 shown in FIG. 2.

That is, when the driver performs a select operation, the select lever 5 linearly moves the control shaft 7 according to the movement of the select cable 3, and the control finger on the control shaft 7. (8) selects the shift lug 9 of each shift stage, such as 5 steps / reverse, 3 steps / 4 steps, 1 step / 2 steps, and the like.

In addition, when the driver performs a shift operation, the shift lever 6 rotates as the shift cable 2 moves, and the control finger 8 is neutral while the control shaft 7 rotates left and right. And shift lug 9 toward 1, 3, 5, or 2, 4, reverse.

Since the shift lug 9 is fixed to the shift rail 10 together with the shift fork 11, the shift fork 11 moves a synchronizer sleeve (not shown) to shift.

However, the above conventional shift control mechanism for manual transmission is configured to transmit the operating force by a shift transmission mechanism mechanically connected to the shift lug 9 when the driver operates the shift lever. Damage to the cable 2 or the select cable 3 can make normal shift operation difficult, especially between the shift lever 1 and the shift lug 9, the select cable 3 and the shift cable 2, Since the select lever 5, the shift lever 6, the control shaft 7, and the like are configured, the overall configuration is complicated and the layout structure of the vehicle is also complicated.

In particular, the shift operation mechanism for the conventional manual transmission is mechanically connected to the shift operation mechanism from the shift lever 1 to the transmission 4 main body so that the vibration generated from the manual transmission is transmitted to the shift lever as it is, and the shift is also performed. Even when the lever is operated, the mechanical actuation force is transmitted as it is, there is also a problem that the shift operation feeling that the driver feels is significantly lowered.

The present invention has been made to solve the above problems, and by configuring the automatic transmission using the actuator rather than the mechanical connection method, simplifying the overall configuration and the layout structure is advantageous, and also improves the shift operation feeling It is an object of the present invention to provide an automatic shift control device for a manual transmission, in order to increase the accuracy and reliability of the shift operation.

Automatic transmission operation apparatus for a manual transmission according to the present invention for realizing the above object is provided with a select shaft which is installed so as to move linearly to transmit a selecting operation force; A select actuator for linearly moving the select shaft; A control finger mounted to the select shaft in a linear movement direction to select one of a plurality of shift lugs; A shift shaft installed in a direction orthogonal to the select shaft to transmit a shifting actuation force; A shift actuator for linearly moving the shift shaft; And a shift cap installed on the shift shaft to move one of the shift lugs while rotating the control finger about the select shaft, thereby shifting each shift stage.

In this case, the select actuator and the shift actuator are preferably configured to operate according to a signal of a transmission control device or an operation of a shift lever operated by a driver.

Preferably, the select shaft is provided with an interlock plate for preventing the control finger from double coupling with the plurality of shift lugs.

When the select shaft is configured to linearly move in a frame fixed to the transmission case, the interlock plate may be linearly moved together with the select shaft, but is configured to be constrained to the frame in a rotational direction so as not to rotate. It is preferable.

Both sides of the control finger is preferably provided with a neutral spring that is supported on the frame is configured to return the control finger to the neutral position.

The coupling portion of the shift cap and the control finger is preferably coupled in a ball socket joint manner so as to move freely in the shift direction as well as the select direction.

The ball socket joint method preferably includes a ball part formed at an end of the control finger, and a socket part formed at the shift cap and inserted into and coupled to the ball part.

Hereinafter, exemplary embodiments of the present invention will be described with reference to the accompanying drawings.

The automatic shift control device for a manual transmission according to the present invention basically controls hydraulically driven select actuators and shift actuators when the shift lever (including a shift control mechanism having the same function) is operated. The shifting operation may be performed by moving a finger.

In addition, the automatic transmission operation apparatus for a manual transmission according to the present invention can be applied to an automated manual transmission. That is, when the driver selects a range of P, R, N, D, etc., like the shift control structure of the automatic transmission vehicle, the transmission control device such as the TCU, and the like, allows driving conditions and conditions such as engine RPM and vehicle speed to be adjusted. In consideration of this, the control signal may be output to the select actuator and the shift actuator of the present invention so that a shift operation such as an automatic shift vehicle is performed.

A configuration of a specific embodiment of the present invention applicable to both of these systems will be described with reference to FIG. 3.

3 is a perspective view showing an automatic shift operation apparatus for a manual transmission according to the present invention.

As shown in the drawing, the present invention includes a select shaft 25 which is installed to be linearly movable and transmits a selecting operation force, a select actuator 20 which linearly moves the select shaft 25, and the seal. A control finger 40 installed in the direct shaft 25 freely in the rotational direction and constrained in the linear movement direction to select one of the plurality of shift lugs 50, and a direction orthogonal to the select shaft 25; A shift shaft 35 which is installed to transmit a shifting actuation force, a shift actuator 30 which linearly moves the shift shaft 35, and a shift shaft 35 installed at the shift shaft 35 The shift cap 45 is configured to move one of the shift lugs 50 while rotating about the select shaft 25 so that the shift of each shift stage is performed.

In addition, the plurality of shift lugs 50 are coupled to each other, and a shift rail 52 which is linearly moved in accordance with the movement of the shift lug 50, and is provided on the shift rail 52, and each shift gear (speed gear). A shift fork 53 is configured that is coupled to the synchronizer sleeve that is fitted to it.

The main components of the present invention will be described in detail with reference to FIGS. 4 to 8 as follows.

4 and 5 are cross-sectional configuration views seen in the "A" direction and the "B" direction of Figure 2, showing the shifting operation state and the selection operation state.

And Figure 6 is a perspective view showing the main part of the automatic shift operation apparatus of the present invention, Figure 7 is a perspective view for showing the selecting operation structure of the present invention, Figure 8 is a view for showing a shifting operation structure of the present invention Perspective view.

First, the select actuator 20 and the shift actuator 30 are configured to be operated by hydraulic pressure that is changed according to an operation of a shift lever operated by a driver or control of a transmission control device such as a TCU.

The actuators 20 and 30 are configured to be controlled by the respective solenoid valves 21 and 31 driven according to the operation of the shift lever or the signal of the transmission control device, thereby supplying hydraulic pressure to each actuator in accordance with the operation state of the solenoid valve. This adjustment is configured to linearly move the select shaft 25 and the shift shaft 35 to a desired position.

Since the hydraulic actuator of such a linear drive method is a well-known configuration, the hydraulic circuit and specific internal configuration are omitted. However, in general, the manual transmission is configured to enable one reverse and five forward steps, and each of the actuators is preferably configured to enable three-speed linear movement of the select shaft 25 and the shift shaft 35, respectively. .

In addition, it is not necessarily limited to the hydraulic actuator, it is also possible to implement by an electronic actuator method, if necessary. The electronic actuator type may be a linear motor type or a solenoid actuator type.

 Next, the driving force of the select actuator 20 and the shift actuator 30 is transmitted through the select shaft 25 and the shift shaft 35, and the select shaft 25 and the shift shaft 35 are the case 55 is installed to be connected to the inside. The case 55 may be a transmission case or a control case attached to the transmission case.

Inside the case 55, a frame 57 having a 'c' shaped structure is fixedly installed through a fixing bolt 59 or the like, and the interlock plate 70 to be described later is selected in the frame 57. The movement guide part 57a having a structure deleted as shown in FIGS. 6 and 7 is formed so as to move in a predetermined range when moving.

Next, the select shaft 25 is connected to the inside of the case 55 in a state in which the select shaft 25 is connected to the select actuator 20 on the outside of the case 55 so as to allow a linear movement. The frame 57 The inner portion of the shaft sleeve 26 is positioned on both sides of the interlock plate 70 to be described later and linearly moved together.

Next, the control finger 40 is fixed to the select shaft 25 with a pin 42, as shown in FIG. A ball portion 40b to be coupled is configured, and a lug coupling portion 40a coupled to the shift lug 50 is configured on the other side.

Next, an interlock plate 70 is provided outside the control finger 40 to prevent the control finger 40 from being double-coupled with the plurality of shift lugs 50.

The interlock plate 70 is installed to move together with the control finger 40, and the shaft sleeve 26 is configured to be in contact with each other and to move together.

The movement range of the interlock plate 70 is made inside the movement guide part 57a of the frame 57, and a guide 70 is formed in the rearward direction with a slot 70a fixed to the frame 57. Interaction with the bolt 58 determines its range of motion.

In addition, the coupling of the guide bolt 58 and the slot 70a causes the interlock plate 70 to rotate by the guide bolt 58 coupled to the slot 70a even when the control finger 40 rotates during the shift operation. Since it is constrained in the direction, the movement of the shift lug 50 other than the shift lug 50 coupled to the control finger 40 is constrained to allow more accurate and reliable shift operation.

Next, both sides of the interlock plate 70 are configured to automatically move to the neutral position at no load by the tension of both neutral springs 75, each neutral spring 75 is supported on the frame 57 In this state, the flange portion 26a of the shaft sleeve 26 is pushed to provide an elastic force to move the interlock plate 70, the control finger 40, and the select shaft 25 to the neutral position.

Next, the shift shaft 35 is installed to extend inwardly of the case 55 as shown in FIG. 8, and the shift cap 45 is coupled in a direction perpendicular to the inside of the case 55.

In particular, a shaft guide 37 is installed inside the case 55, and the shaft guide 37 is fixed to the shift shaft 35 by a bolt 38. For reference, the slot 37a formed in the shaft guide 37 in FIG. 8 is a part for initial setting, and after the setting, a relative movement is established between the shift shaft 35 and the shaft guide 37 by engaging a fastening means such as a bolt. Assemble it completely to prevent occurrence.

A poppet mechanism 60 is installed between the shaft guide 37 and the case 55 to determine left and right shift stage positions and a neutral position, as shown in FIG. 6. One side of the shaft guide 37 is provided. A plurality of grooves 37a (for example, three) are formed, and the case 55 is provided with a poppet ball bearing 61 in close contact with the groove groove 37a to determine the shift position.

Herein, the poppet ball bearing 61 is provided with an elastic force at the end thereof to provide a positioning force while contacting the groove 37a when the shift shaft 35 and the shaft guide 37 are linearly moved. do.

Next, the shift cap 45 has a fixing part 45a fixed to the shift shaft inside the shaft guide 37, and extends in the direction of the control finger 40 from the fixing part, and the ball part 40b of the finger is formed. It is composed of a socket portion 45b made of a cylindrical groove structure to be inserted.

In this way, the coupling portion of the shift cap 45 and the control finger 40 is coupled in a ball-socket joint manner so as to move freely in the shift direction as well as the select direction.

Here, the select shaft 25 and the shift shaft 35 may be configured not to be constrained in the rotational direction of the shaft so that the restraining force due to the linear movement of the counter shaft does not occur. That is, as shown in FIG. 4, when the shift shaft 35 linearly moves, the control finger 40 rotates together with the select shaft 25 by the shift cap 45, but at this time, no shift in the selecting direction is performed. The operating force does not occur, and when the select shaft 25 moves linearly as shown in FIG. 5, the shift cap 45 or the shift shaft 35 may rotate in accordance with the movement of the control finger 40. At this time, no shift operation force is generated in the shift direction.

As a result, the shift cap 45 is connected to the control finger 40 in a ball socket joint manner so that the control force is transmitted in the shifting direction while mutual interference does not occur between the shifting control force and the selecting operation force. It is configured to enable the operation.

Referring to the operation of the automatic transmission operation apparatus for a manual transmission according to the present invention configured as described above are as follows.

First, when the select operation process is described, when the driver performs a select operation to select a specific shift stage, the hydraulic pressure provided to the select actuator 20 is changed, and the select actuator 20 is operated. In this case, the select shaft 25 is linearly moved as shown in FIG. 5.

When the select shaft 25 moves, the interlock plate 70 and the control finger 40 connected thereto move simultaneously, and the control finger 40 selects any one of the plurality of shift lugs 50. Will be Typically, the manual transmission is provided with three shift lugs 50. When the select operation is performed as described above, the control finger 40 is in a state in which one of the three shift lugs 50 is engaged. .

In this case, the interlock plate 70 moves together with the control finger 40 such that the control finger 40 is coupled to only one of the shift lugs 50 of the three shift lugs 50, and at the time of shift operation. In this case, the shift lug 50 of the undesired shift stage may be restricted.

In addition, the interlock plate 70 is installed so that the rear slot is only linearly moved by the guide pin fixed to the frame 57, so that the control finger 40 can be moved only in the select direction.

Next, the shift operation process will be described. When the driver performs a shift operation for determining a specific shift stage, the hydraulic pressure provided to the shift actuator 30 is changed, and the shift actuator 30 is operated. In this case, the shift shaft ( 35 is linearly moved as shown in FIG.

 When the shift shaft 35 is operated, the shaft guide 37 and the shift cap 45 connected thereto operate simultaneously to rotate the control finger 40 about the select shaft 25 so that The shift lug 50 is moved, and at this time, the shift rail 52 and the shift fork 53 of FIG. 3 are shifted linearly.

Here, the connection of the control finger 40 and the shift cap 45 is connected in a ball-socket joint manner to allow movement in any direction, which is shifted by the shift actuator 30. The cap 45 can pivot up and down as shown in FIG. 4 so that the movement of the select actuator 20 is ignored, and only the force of the shift actuator 30 is transmitted, so that the select and shift are independent of the cap 45. Control is enabled.

The automatic transmission operation apparatus for a manual transmission according to the present invention configured and operated as described above is configured to transmit a shift operation force using a select actuator and a shift actuator, so that a mechanical connection between the shift lever and the transmission body is omitted. Therefore, there is an advantage that the shift operation feeling felt by the driver can be greatly improved.

In addition, the present invention has the advantage that the overall configuration is simplified and the layout structure of the vehicle is advantageous because the mechanical connection configuration between the shift lever and the transmission body is eliminated.

In addition, since the present invention is configured to be shifted by using two actuators, there is an advantage that the accuracy and reliability of transmission operation can be improved by solving the problem of malfunction caused by aging of the cable or the like.

In particular, the present invention uses a manual transmission because it can be applied to an automated manual transmission that automatically controls the two actuators in consideration of the speed and engine speed of the vehicle, such as a vehicle equipped with an automatic transmission, to enable automatic shift operation. There is an advantage that can enable the automatic transmission operation, such as a vehicle with an automatic transmission.

In addition, the present invention has the advantage of eliminating interference due to the mutual operation of the two actuators by adopting the ball socket joint method in the coupling portion between the shift shaft and the control finger, so that the select operation and the shift operation can be made independently and smoothly. .

Claims (7)

A select shaft 25 installed to be linearly movable to transmit a selecting operation force; A select actuator 20 for linearly moving the select shaft 25; A control finger (40) mounted on the select shaft (25) in a linear movement direction to select one of the plurality of shift lugs (50); A shift shaft 35 installed in a direction orthogonal to the select shaft 25 to transmit a shifting actuation force; A shift actuator (30) for linearly moving the shift shaft (35); A shift installed on the shift shaft 35 to move the control finger 40 about the select shaft 25 to move one of the shift lugs 50 so that a shift of each shift stage is performed; Automatic shift control device for a manual transmission, characterized in that it comprises a cap (45). The method according to claim 1, The select actuator (20) and the shift actuator (30), the automatic transmission operation device for a manual transmission, characterized in that configured to be operated in accordance with the signal of the transmission control or the operation of the shift lever operating the driver. The method according to claim 1, The select shaft (25) is provided with an interlock plate (70) for preventing the control finger (40) from double coupling with the plurality of shift lugs (50). The method according to claim 3, The select shaft 25 is configured to move linearly in the frame 57 fixed to the transmission case 55, The interlock plate (70) can move linearly together with the select shaft (25), but is automatically constrained to the frame (57) in the rotational direction, characterized in that it is configured to not rotate. The method according to claim 1, The select shaft 25 is configured to move linearly in the frame 57 fixed to the transmission case 55, Neutral springs 75 supported on the frame 57 are installed at both sides of the control finger 40 to allow the control finger 40 to return to the neutral position. Device. The method according to any one of claims 1 to 5, The coupling portion of the shift cap (45) and the control finger (40) is coupled to the ball socket joint method so as to move freely in the shift direction as well as the select direction. The method according to claim 6, The ball socket joint method is composed of a ball portion 40b formed at the end of the control finger 40 and a socket portion 45b formed at the shift cap 45 to which the ball portion 40b is inserted and coupled. An automatic shift control device for a manual transmission.

Images