JPH10309955A - Automatic transmission shift operation device - Google Patents

Abstract

PROBLEM TO BE SOLVED: To prevent a dual-mode shift operation device adapted to be switched over to an AT mode or a MT mode from causing while in the MT mode a selected shift position in the AT mode to be shifted to another position. SOLUTION: An arm 6 is secured to a rotary shaft 3. In that state, a shift operation 1 in its AT mode engages with a groove 6a in the bend 6b of the arm 6 to transmit its swing motion to the shaft 3 and a selector arm 32 by way of the arm 6 for an AT mode shift operation, while the shift operation 1 in its MT mode disengages from the groove 6a. The arm 6 is provided at the bend 6b with a slider 7, which is adapted to slide at the changeover motion of the shift operation 1 between the AT mode and the MT mode so that its engaging part 7b engages with a locking part 22 on a fixed member in the MT mode to prevent the turning motion of the selector arm 32 and that the engaging part 7b disengages from the locking part 22 in the AT mode.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a shift operation device for an automatic transmission for a vehicle.

[0002]

2. Description of the Related Art In a vehicle equipped with an automatic transmission (for example, an electronically-controlled continuously variable transmission), a driver's will is positively reflected in a normal automatic transmission operation mode (AT mode) as in a manual transmission. 2. Description of the Related Art A dual mode shift operation device to which a manual shift operation mode (MT mode) which can be operated has been conventionally developed.

In the above-described dual mode shift operating device, an AT mode shift train in which a position such as P, R, N, D, 3, 2, 1 is selected as a main select pattern by a select lever of the shift operating device. And an MT mode shift train having + and-positions for shifting up and down the gear ratio by the select lever, and a D range position and an M shift position of the AT mode shift train.
In general, a shift pattern of an H-shaped gate including a communicating portion that communicates with a substantially central portion of the T-mode gear train is used, and is disclosed, for example, in Japanese Patent Application Laid-Open No. 7-32904.

[0004]

In the dual mode shift operation device as described above, in the MT mode, the AT
It is common to cut off the relationship with the movement of the cable or rod by the normal select lever operation in the mode, electrically detect the manual operation of the select lever, and perform a shift operation such as upshifting or downshifting based on the electrical signal. It is. In the MT mode, if a force is applied to the cable or rod by an external factor, the AT mode position may move to a position other than the D range regardless of the select lever. There is a problem that restoring from the MT mode to the AT mode becomes impossible if the user moves to another position.

[0005] An object of the present invention is to address the above problems.

[0006]

According to the present invention, there is provided a dual mode transmission apparatus as described above, wherein in the AT mode, the turning operation of the select lever is transmitted to the rotary shaft and the select arm via the arm, thereby selecting the select arm. , The transmission is operated by a cable, a rod, or the like, and in the MT mode, the engagement between the select lever and the arm is released, thereby disconnecting the relationship with the AT mode transmission mechanism.
The operation of the select lever is electrically detected, and the shift operation in the MT mode is performed based on the electrical signal, thereby simplifying the configuration of the switching mechanism between the AT mode and the MT mode. Is slidably mounted, and the slider slides with the switching operation of the select lever between the AT mode and the MT mode.
In the T mode, the slider is fitted and engaged with the locking portion provided on the fixed member, and in the AT mode, the slider is detached from the locking portion of the fixed member. When the slider is engaged with the locking portion of the fixed member in the mode, the movement of the rotating shaft and the select arm in the rotating direction is restrained, and the shift position in the AT mode is moved even when an external force is applied in the MT mode. This is not the case, and the possibility that restoration from the MT mode to the AT mode cannot be performed is completely eliminated.

[0007]

Embodiments of the present invention will be described below with reference to the drawings.

[0008] The present invention is basically, as shown in FIG.
AT consisting of an I-type gate in which each position of P, R, N, D, 3, 2, 1 is arranged on a straight line in the vehicle longitudinal direction.
Next to the mode gear train 101, an MT mode gear train 102 composed of an I-shaped gate that is linear in the vehicle longitudinal direction is disposed in parallel, and the D range position of the AT mode gear train 101 and M
AT-MT communication section 103 which communicates with a substantially central portion (neutral position in the MT mode) of the T-mode gear train 102.
The present invention is intended for a dual-mode shift operation device having a substantially H-shaped shift pattern provided with.

A shift-up switch SW _U is provided at the front of the MT-mode gear train 102 and a shift-down switch SW _D is provided at the rear of the MT-mode gear train 102. The select lever 1 is moved within the MT-mode gear train 102. Operate back and forth to shift up switch SW _U , shift down switch SW _D
Is operated, upshifting and downshifting are performed in accordance with a preset gear position by these electric signals.

A specific configuration example of the present invention will be described below with reference to FIGS.

1 to 4, reference numeral 1 denotes a select lever, 2 denotes a base plate, and a rotating shaft 3 is mounted on the base plate 2 so as to be rotatable in the vehicle longitudinal direction. A shaft 5 orthogonal to the rotating shaft 3 is rotatably mounted on the rotating shaft 3, and a bracket 4 is rotatably mounted on the shaft 5, and a lower end of the select lever 1 is mounted on the bracket 4. Is fixed.

Reference numeral 6 denotes an arm. The lower end of the arm 6 is fixed to the rotating shaft 3, and a bent portion 6b at the upper end of the arm 6 is provided with a U-shaped groove 6a. Is rotated about the shaft 5, the select lever 1 is engaged with and disengaged from the U-shaped groove 6a, and the select lever 1 is fitted and engaged in the groove 6a (AT described later). Mode state), the arm 6 and the rotating shaft 3 are connected to the select lever 1 by a rotating operation of the select lever 1 about the rotating shaft 3 (a rotating operation in the vehicle front-rear direction).
And the select arm 32 fixed to the rotating shaft 3 rotates, and the transmission of the automatic transmission is changed via a cable, a rod, etc., similarly to a conventional general automatic transmission operating device. An operation is to be performed. In a state where the select lever 1 is separated from the groove 6a (a state of an MT mode described later), the select lever 1 around the rotation shaft 3
(Turning operation in the front-rear direction of the vehicle) is performed by the select lever alone while being separated from the rotating shaft 3, and the turning operation causes the shift-up switch SW _U or the shift-down switch SW _D to operate to shift. Upshifting or downshifting is performed.

A slider 7 is fitted to the bent portion 6b of the arm 6 so as to be slidable in the direction of engagement and disengagement of the select lever 1 (lateral direction of the vehicle). A spring 8 for urging the pressing force in the detaching direction is attached by a pin 9. The slider 7 has an arcuate fitting portion 7a into which the select lever 1 is fitted, and a fixed side member (for example, when the slider 7 slides in the select lever release direction along with the release of the select lever 1 from the groove 6a). An engaging portion 7b is provided for engaging with a locking portion 22 provided on a guide plate 21) fixed to the base plate 2.

As is conventionally known, the select lever 1 includes an outer cylinder 11, a rod 12 slidably fitted in the outer cylinder 11, and a knob 1 fitted on the upper end of the rod 12.
3 and a spring 14 disposed at a lower portion in the outer cylinder 11 to urge the rod portion 12 upward. A pin 12a protruding laterally is fixed to the rod portion 12, and a vertically long hole 11a through which the pin 12a penetrates is formed in the outer cylinder 11, and the pin 12a is normally actuated by the spring force of the spring 14. The rod 13 is pressed against the upper end of the elongated hole 11a, and when the knob 13 is pressed downward, the rod portion 12 can slide downward within the range of the elongated hole 11a against the spring force of the spring 14. ing.

On the other hand, a guide plate 21 for guiding the pin 12a of the select lever 1 is provided on the base plate 2.
Is fixed. The guide plate 21 has a guide hole 21a into which the pin 12a fits, as is conventionally known,
The pin 1 in the AT mode is provided on the upper edge of the guide hole 21a.
2a is engaged to form a guide portion 21b that regulates each shift position such as P, R, N, and D.
By pressing the knob 13 downward to lower the pin 12a, the pin 12a and the guide portion 21b are disengaged, and the select lever 1 can be operated to another shift position in the AT mode.

In the embodiment shown in the drawings, a locking portion 22 with which the engaging portion 7b of the slider 7 fitted and assembled to the bent portion 6b of the arm 6 engages is recessed in the upper edge of the guide plate 21. An example is shown.

In the above, when the select lever 1 is in the AT mode gear train 101 in the AT mode, the select lever 1 is engaged with the groove 6a provided in the bent portion 6b of the arm 6, and the select lever 1 is engaged. When the lever 1 is fitted to the fitting portion 7a and presses the slider 7 against the spring force of the spring 8, the slider 7 is moved to the non-engagement position where the engagement portion 7b is disengaged from the locking portion 22. As described above, the rotation operation of the select lever 1 along the AT mode gear train 101 is transmitted to the rotation shaft 3 via the arm 6, and as in the conventional general automatic transmission, The shift operation of the automatic transmission is performed from the select arm 32 via a cable, a rod, and the like.

When the select lever 1 is set to the AT mode gear train 1
01 at the D range position,
MT-mode gear train 10 through T-MT communication section 103
2, the control switch (not shown) is operated and the control circuit (not shown) is switched to the circuit for the MT mode, and the select lever 1 is separated from the groove 6a, so that the rotation of the rotary shaft 3 is not accompanied. The MT mode allows only the select lever 1 to be turned by itself.
When the select lever 1 along the MT mode shift column 102 operated for rotation to either one example forward longitudinal about the rotation shaft 3, issues a shift-up signal operating shift up switch SW _U is, in the up-shifting signal based control circuit is one stage upshift the gear position in each time of the up-shifting signal, when operated to rotate the select lever 1 to the other eg the rear, issues a shift-down signal to the shift-down switch SW _D is actuated, On the basis of the downshift signal, a manual shift operation is performed such that the control circuit shifts down the shift stage one by one for each downshift signal. When the mode is switched from the AT mode to the MT mode, the pin 12a of the select lever 1 separates from the guide hole 21a of the guide plate 21 at the same time that the select lever 1 separates from the groove 6a of the arm 6, so that the guide portion 21b is 1 does not hinder the manual shifting operation.

In the switching operation from the AT mode to the MT mode, the slider 7 provided on the bent portion 6b of the arm 6 with the detachment of the select lever 1 from the groove 6a,
Due to the spring force of the spring 8, the fitting portion 7a
The slider 7 slides to a position near the distal end of the guide a, and the engaging portion 7b of the slider 7 engages with the engaging portion 22 of the guide plate 21 by the sliding movement. The rotation of the arm 6, that is, the rotation of the rotary shaft 3 is completely restrained by the engagement engagement with the arm, and even if an external force is applied to the select arm 32 to which the end of the transmission cable is connected, the select position in the AT mode is set to D. By moving the select lever 1 from the neutral position of the MT mode gear train 102 to the AT mode gear train 101 without moving from the range position to another position,
It is possible to reliably restore to the AT mode D range position.

In the drawing, the slider 7 is operated in the MT mode.
An example is shown in which the guide plate 21 is provided with a locking portion 22 into which the engaging portion 7b is fitted.
However, the locking portion 22 can be provided on any fixed member such as the base plate 2 or a member fixed to the base plate 2.

[0021]

As described above, according to the present invention, in a shift operation device for a vehicle equipped with an automatic transmission, P, R,
A shift train for AT mode comprising an I-type gate in which N, D, 3, 2, 1, etc. positions are arranged in a straight line;
A straight I which is arranged parallel to the side of the gear train for T mode
A gear train for the MT mode consisting of a mold gate, and an approximately H-communication part comprising an AT-MT communication part communicating the D range position of the gear train for the AT mode with a substantially central part of the gear train for the MT mode.
In the dual-mode shift operation device of the type shift pattern, the shift operation of the select lever in the AT mode is transmitted to the select arm via the arm, and the select lever and the arm are interlocked with the switching operation of the select lever from the AT mode to the MT mode. The connection between the AT mode and the MT mode can be simplified by canceling the connection with the select arm in the MT mode by breaking the connection with the select arm.

A slider is provided on the arm so that the slider slides in accordance with the movement of the select lever to and from the arm, and the slider moves in accordance with the movement of the select lever from the arm. The sliding movement of the slider allows the engaging portion of the slider to be fitted and engaged with the locking portion of the fixed-side member to restrain the movement of the arm. The gear shift position never moves, and the MT mode is changed from the MT mode to the A mode by a very simple and compact mechanism of setting the slider on the arm.
The fear that restoration to the T mode cannot be performed is completely eliminated.

[Brief description of the drawings]

FIG. 1 is a plan view showing an example of a shift pattern of a select lever of a dual mode shift operation device to which the present invention is applied.

FIG. 2 is a front view showing the embodiment of the present invention, and shows a main part in cross section.

FIG. 3 is a side view of the device shown in FIG. 2, showing a main part in cross section.

4 is an enlarged detailed view showing a relationship between an arm and a select lever of the device shown in FIGS. 2 and 3, (A) is a front view showing a cross section of a main part, and (B) is a plan view. is there.

[Explanation of symbols]

DESCRIPTION OF SYMBOLS 1 Select lever 2 Base plate 3 Rotating shaft 4 Bracket 5 Axis 6 Arm 6a Groove part 6b Bend part 7 Slider 7a Fitting part 7b Engaging part 8 Spring 9 Pin 11 Outer cylinder 11a Long hole 12 Rod part 12a Pin 13 Knob 14 Spring 21 Guide plate 21a Guide hole 21b Guide part 22 Locking part 31 Bush 32 Select arm 101 AT mode gear train 102 MT mode gear train 103 AT-MT communication unit SW _U shift up switch SW _D shift down switch

Claims (4)

[Claims] A select lever is rotatably supported with respect to a rotating shaft and supported so as to be rotatable about an axis perpendicular to the rotating shaft. When the select lever is rotated about the shaft, the select lever is supported. In a dual mode shift operating device that switches between an AT mode and an MT mode,
An arm having a groove in which the select lever is engaged in the mode and the select lever is detached in the MT mode is fixed to the rotating shaft. In the AT mode, the turning operation of the select lever around the shaft is performed via the arm. The transmission is transmitted to the rotating shaft to perform the AT mode shift operation. In the MT mode, the relationship between the turning operation of the select lever and the AT mode shift operation mechanism is broken by the select lever being disengaged from the groove of the arm. A shift operation device for an automatic transmission, wherein a rotation operation of the select lever about the rotation axis is electrically detected, and a shift operation in an MT mode is performed based on the electrical signal. . 2. The shift operation device for an automatic transmission according to claim 1, wherein a slider is slidably mounted on the arm, and in the MT mode, the slider engages with a locking portion of the fixed member. An automatic transmission, wherein the slider is slid to a position where the movement of the arm in the rotation direction is locked, and in AT mode, the slider is slid to a position separated from the locking portion of the fixed member. Gear shifting device of the device. 3. The shift operating device of an automatic transmission according to claim 2, wherein the slider is biased by a spring to be held at a position engaged with the locking portion of the fixed member, and the arm of the select lever is actuated. By engagement with the groove, the slider is pressed by the select lever and slides to a position separated from the locking portion of the fixed member against the urging force of the spring, and the slider is moved away from the arm groove of the select lever. A shift operation device for an automatic transmission, wherein the slider is configured to slide to a position where the slider is engaged with the locking portion of the fixed member by the biasing force of a spring. 4. The speed change operation device for an automatic transmission according to claim 2, wherein the fixed side member has a guide hole fixed to a base plate and having a guide portion for regulating a plurality of shift positions in an AT mode. A shift operation device for an automatic transmission, which is a guide plate.