JP2886239B2 - Automatic shifting operation device - Google Patents

Description

Description: BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an automatic speed change operation device, and more particularly, to a shift lever for shifting the speed of an automatic transmission via an actuator,
The present invention relates to an automatic shift operation device including an auxiliary shift lever that mechanically shifts an automatic transmission without using an actuator.

(Prior art)

Generally, as a shift operation device that shifts an automatic transmission of a vehicle, a shift operation of a shift lever disposed between the left and right front seats causes a shift operation of an automatic transmission connected to the shift lever via a cable. A device in which a shift unit is operated to change a shift range is widely used. However, in this disguise operation device, the shift operation portion of the automatic transmission is manually operated via the shift lever and the cable, so that the operation of the shift lever is heavy and lacks operability, and the shift lever itself is large. This is a major constraint on the layout.

For example, Japanese Patent Publication No. Sho 62-30509 discloses an automatic transmission in which the operation of a shift lever is converted into an electric signal, and an actuator is driven based on the electric signal to operate a shift operation portion of the automatic transmission. An operating device is described.

[Problems to be solved by the invention]

In the automatic transmission operating device described in the above publication, the operation of the shift lever is once converted into an electric signal, so that the operation of the shift lever can be lightened and the shift lever itself can be configured to be small. However, since the actuator may malfunction due to a failure such as disconnection, it is preferable from a fail-safe point of view to provide an auxiliary shift lever for directly operating the shift operation section of the automatic transmission without the intervention of the actuator.

SUMMARY OF THE INVENTION It is an object of the present invention to provide an automatic shift operation device capable of forcibly switching a shift range by operating an auxiliary shift lever even when a failure such as a disconnection occurs.

[Means for solving the problem]

An automatic transmission operating device according to the present invention is an automatic transmission operating device that converts an operation of a shift lever into an electric signal and transmits the electric signal to an actuator, and the actuator operates a switching operation member of the automatic transmission. An output member connected to the operation member, a clutch mechanism for connecting / disconnecting the output member and the output portion of the actuator, an auxiliary output member engageable with the output member, and a connection to the auxiliary output member An auxiliary shift member that is mechanically operated, and a transmission path switching mechanism that divides the clutch mechanism in conjunction with the operation of the auxiliary shift member and engages the output member and the auxiliary output member to interlock and connect. It is provided.

[Action]

In the automatic shift operation device according to the present invention, the operation of the shift lever is converted into an electric signal and transmitted to the actuator, and the output member connected to the output portion of the actuator via the clutch mechanism is connected to the output member by the automatic member. By operating the switching operation member of the transmission, the shift range of the automatic transmission can be switched according to the operation of the shift lever.

On the other hand, even when the shift range is not normally changed by operating the shift lever due to a failure such as disconnection, if the auxiliary shift member is operated, the transmission path switching mechanism interlocks with the operation of the auxiliary shift member to operate the clutch. While the mechanism is cut off, the auxiliary output member and the output member connected to the auxiliary shift member are engaged and interlocked and connected, and the auxiliary shift member and the switching operation member are mechanically connected via the auxiliary output member and the output member. The shift range of the automatic transmission can be forcibly switched by operating the switching operation member with the auxiliary shift member.

〔The invention's effect〕

According to the automatic transmission operating device according to the present invention, as described in detail in the section of [Action], the auxiliary shift member mechanically connected to the switching operation member of the automatic transmission is provided. The shift range of the automatic transmission can be forcibly switched by operating the auxiliary shift member even in an abnormal situation where the shift range cannot be normally switched by the above operation.

Moreover, since the transmission path switching mechanism is provided, it is possible to prevent the adverse effect due to the malfunction of the actuator by separating the clutch mechanism only by operating the auxiliary shift member,
The auxiliary shift member is mechanically connected to the switching operation member so that the shift range of the automatic transmission can be immediately switched.

〔Example〕

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

In this embodiment, the present invention is applied to a shift operation device of an automobile having an automatic transmission.

As shown in FIG. 1, the automatic speed change operation device 1 converts an operation of a main shift lever 2 into an electric signal and transmits the electric signal to a drive unit 3, and an output lever 5 connected to an output shaft 4 of the drive unit 3. As a fail-safe in the event that the main shift operating device fails due to disconnection or the like, and a main shift operating device that operates the switching lever 8 of the automatic transmission 7 that is connected to the output lever 5 via the wire 6 through the auxiliary lever. Shift lever 9
With the operation described above, the connection between the output shaft 4 and the output lever 5 is cut off, and the auxiliary output lever 11 and the output lever 5 connected to the auxiliary shift lever 9 via the wire 10 are engaged. An auxiliary shift operation device is provided for connecting the lever 9 and the switching lever 8 to perform a shift operation.

The main shift operation device includes a main operation unit 12 and a control unit.
13 and the drive unit 3 are configured as follows.

As shown in FIGS. 1 to 4, the main operation unit 12 includes a casing 17 rotatably supported on a dashboard 16 near a steering handle 15 via a support shaft 14 oriented in the vehicle width direction. A switch unit 18 provided in the casing 17 and a main shift lever 2 extending upward from the switch unit 18 through the casing 17 are provided. The switch unit 18 has a parking range “P” from the front side,
Six switches 19 corresponding to the reverse range “R”, the neutral range “N”, the drive range “D”, the forward second speed range “2”, and the forward first speed range “1” are provided, respectively.
By operating the main shift lever 2 in the front-rear direction to close a desired switch 19, a shift signal corresponding to the closed switch 19 is output to the control unit 13.

As shown in FIG. 4, the main operation section 12 is housed in a housing section 24 formed on the dashboard 16 by a rotation drive mechanism 23 including a worm wheel 20, a worm gear 21, and an electric motor 22. It is rotationally driven to a storage position and a use position indicated by a solid line that is rotated rearward.

The driving unit 3 will be described. As shown in FIG. 3 to FIG. 6, an electric motor 28 is fixed to the upper surface below the air conditioner unit 25 and near the front end of the shaft tunnel 26. A gear case 27 is fixed to the front part, and a rotating shaft 28a of an electric motor 28 extending into the gear case 27 is provided.
A worm gear 29 is fixedly mounted. An output shaft 4 oriented in a direction orthogonal to the rotation shaft 28a is rotatably supported at a middle portion of the gear case 27. A worm wheel 30 meshing with the worm gear 29 is provided at an intermediate portion of the output shaft 4. An output lever 5 is connected to a right end portion of the output shaft 4 which is fixed and extends outside the gear case 27 via a clutch mechanism described later. The output lever 5 is connected to a switching lever 8 of the automatic transmission 7 via a wire 6. ing.

The control unit 13 includes a microcomputer mainly including a CPU (central processing unit), a ROM (read only memory), and a RAM (random access memory),
When the ignition switch is turned on, the electric motor 22 is driven to rotate the main operation unit 12 to the use position, and when the ignition switch is turned off, the main operation unit 12 is turned to the storage position. The electric motor 28 is driven based on signals from various switches such as a switch and a switch unit 18 and signals from various sensors such as a vehicle speed sensor and a crank angle sensor. The automatic transmission 7 is shifted by rotating the gear 8. A control program for automatic shift control for shifting the automatic transmission is stored in the ROM in advance. However, since the automatic shift control is the same as the existing known shift control, detailed description thereof is omitted. .

As shown in FIGS. 2 to 4, the auxiliary shift operation device includes an auxiliary operation portion provided at a front portion of the center console 31.
33, a clutch mechanism for connecting / disconnecting the output lever 5 and the output shaft 4 and an auxiliary output which is connected to the auxiliary shift lever 9 of the auxiliary operation unit 33 via the wire 10 and is engageable with the output lever 5; A lever 11 and a transmission path switching mechanism for separating the clutch mechanism in conjunction with the rotation operation of the auxiliary shift lever 9 and engaging the output lever 5 and the auxiliary output lever 11 are provided.

Since the auxiliary operation section 33 has the same configuration as a normal speed change operation apparatus, it will be briefly described. As shown in FIGS. 1 and 4, a substantially U-shaped guide plate is provided on the upper surface of the shaft tunnel 26. The auxiliary shift lever 9 is rotatably supported between the front and rear legs of the guide plate 37 via a shaft member 35 oriented in the left-right direction. The accommodation part formed in the front of
The guide plate 37 is provided with a guide slit 38 formed in the guide plate 37 for restricting the rotation of the auxiliary shift lever 9. A push switch (not shown) provided on a knob of the auxiliary shift lever 9 is operated to assist the auxiliary shift lever 9. When the engagement between the lever 9 and the guide slit 38 is released, the auxiliary shift lever 9
Is rotated to a desired shift range to shift gears.

The clutch mechanism will be described with reference to FIGS.
As shown in the figure, an output lever 5 is rotatably mounted on the left portion of the output shaft 4 extending rightward from the gear case 27, and the outer end of the output lever 5 is connected to the automatic transmission 7 via a wire 6. A spline shaft portion 4a is formed near the right end of the output shaft 4, and a substantially cylindrical dog 39 is spline-fitted to the spline shaft portion 4a so as to be movable in the axial direction.
A pair of engagement recesses 40 is provided at the right end of the boss 5a of the output lever 5.
Is formed at the left end of the dog 39. A pair of engaging projections 41 is formed at the left end of the dog 39 so as to be disengageable from the engaging recess 40, and a substantially disk-shaped spring receiving plate 42 is formed at the outer end of the output shaft 4. A compression coil spring 43 for urging the dog 39 toward the output lever 5 is provided between the spring receiving plate 42 and a flange 39a formed at the right end of the dog 39,
As shown in FIG. 8, when the engaging projection 41 is engaged with the engaging recess 40, the output lever 5 is relatively non-rotatably connected to the output shaft 4 via the dog 39, as shown in FIG. Dog as shown
When the engagement projection 41 is disengaged from the engagement concave portion 42 by moving 39 to the right, the output shaft 4 is disconnected.

The transmission path switching mechanism will be described with reference to FIGS.
As shown in FIG. 9, the boss 5a of the output lever 5 and the dog
An outer diameter of the auxiliary output lever 11 is formed to be substantially the same as the outer diameter of the auxiliary output lever 39. The auxiliary output lever 11, which is movable to the boss 5a of the output lever 5, is rotatably mounted on the dog 39. The auxiliary shift lever 9 is connected to the middle portion of the lever 9 via a wire 10, is held at the foremost position (parking range) via a tension spring 44, and is provided between the auxiliary output lever 11 and the spring receiving plate 42. A compression coil spring 49 that urges the output lever 5 toward the output lever 5 is provided.

The auxiliary output lever 11 is formed with a pair of engaging projections 45 that are in contact with the right end surface of the output lever 5, and the output lever 5 is formed with an engaging section 46 that can engage with the engaging projection 45. A pair of partially cylindrical cam portions 47 are formed on the right end surface of the auxiliary output lever 11 so as to protrude rightward, and the cam portion 4 is formed on the left end surface of the flange portion 39a.
7 is formed, and a pair of protrusions 48 are formed so that the auxiliary shift lever 9 is held at the frontmost position.
Does not come into contact with the cam portion 47, but when the auxiliary shift lever 9 is rotated, the protruding portion 48 rides on the cam portion 47 through the tapered surface 47a of the cam portion 47, as shown by a solid line in FIG. When the dog 39 moves to the right, the engaging projection 41 is disengaged from the engaging recess 40, and when the dog is further rotated, the engaging projection 45 engages with the engaging section 46, as indicated by a virtual line. The output lever 5 and the output shaft 4 are separated from each other, and the output lever 5 and the auxiliary output lever 11 are connected to each other so as not to rotate relatively.

Next, the operation of the automatic transmission operating device 1 will be described.

During normal operation, by operating the main shift lever 2 in the front-rear direction and turning on a desired switch 19, a drive signal corresponding to a shift signal from the switch unit 18 is output from the control unit 13 to the electric motor 28, The speed change lever is rotated by the electric motor 28 via the output lever 5 and the wire 6, and the speed range of the automatic transmission 7 is switched. However, even if the main shift lever 2 is operated due to disconnection or the like, the speed range is switched. In the event of an abnormality that does not occur, by operating the auxiliary shift lever 9, the output lever 5 and the output shaft 4 are disconnected by the transmission path switching mechanism, and the output lever 5 and the auxiliary output lever 11 are engaged so that they cannot rotate relative to each other. And
The auxiliary shift lever 9 and the switching lever 8 are connected via the wire 6, the auxiliary output lever 11, and the output lever 5, and the shift range is forcibly switched according to the operation of the auxiliary shift lever 9.

As described above, by providing the auxiliary shift operation device, even when the main shift operation device fails due to disconnection or the like, the shift lever 8 is forcibly operated by operating the auxiliary shift lever 9 to shift the automatic transmission 7. Can be operated. Moreover, by providing the clutch mechanism and the transmission path switching mechanism having a simple configuration, the output lever 5 and the output shaft 4 are separated by the rotation operation of the auxiliary shift lever 9 at the time of the gear shifting operation, so that the electric motor 28 becomes abnormal. Rotation can prevent adverse effects, output lever 5 and auxiliary output lever
The gear shift operation can be started immediately by engaging with the gear 11. Explaining the correspondence between the members and components in the above embodiment and the members and components in the claims, the output shaft 4 corresponds to the output section, the output lever 5 corresponds to the output member, and the switching lever 8 Corresponds to the switching operation member,
The auxiliary shift lever 9 corresponds to an auxiliary shift member, and the auxiliary output lever 11 corresponds to an auxiliary output member.

The main operation section 12 may be provided on the center console 31 of the left and right front seats.

[Brief description of the drawings]

The drawings show an embodiment of the present invention. FIG. 1 is an overall configuration diagram of an automatic transmission operating device, FIG. 2 is a perspective view of a main part near a center console and a dashboard, and FIG. 3 is FIG.
FIG. 4 is a sectional view taken along the line IV-IV in FIG. 3, FIG. 5 is a transverse sectional view of the drive unit, FIG. 6 is a sectional view taken along the line VI-VI in FIG. 5, FIG. FIG. 8 is a perspective view of a main part of a transmission path switching mechanism, FIG.
FIG. 9 is an operation explanatory view of the clutch mechanism and the transmission path switching mechanism. 1 ... automatic shift operation device, 2 ... main shift lever,
3 ... Drive unit, 4 ... Output shaft, 5 ... Output lever, 7 ...
... automatic transmission, 8 ... switching lever, 9 ... auxiliary shift lever, 11 ... auxiliary output lever.

──────────────────────────────────────────────────続 き Continued on the front page (58) Field surveyed (Int.Cl. ⁶ , DB name) F16H 59/00-61/12 F16H 61/16-61/36 F16H 63/00-63/48 B60K 20 / 00-20/08

Claims (1)

(57) [Claims] 1. An automatic transmission operating device for converting an operation of a shift lever into an electric signal and transmitting the electric signal to an actuator, and operating the switching operation member of the automatic transmission by the actuator, wherein the automatic transmission operating device is connected to the switching operation member of the automatic transmission. An output member, a clutch mechanism for connecting / disconnecting the output member and the output portion of the actuator, an auxiliary output member engageable with the output member, and a mechanically connected to the auxiliary output member. An auxiliary shift member to be operated, and a transmission path switching mechanism that disconnects the clutch mechanism in conjunction with the operation of the auxiliary shift member and engages the output member and the auxiliary output member to interlock and connect. Automatic transmission operating device.