JPH1178576A - Shift action device for transmission - Google Patents

Abstract

PROBLEM TO BE SOLVED: To immediately sense whether a shift-up or a shift-down is allowed or not in the manual shift mode. SOLUTION: When a select lever is tilted to an up-position (+) or a down- position (-) in the manual shift mode, a plunger 28a provided on the first solenoid 28 on the up-shift side or a plunger 29a provided on the second solenoid 29 on the down-shift side is protruded if a shift is allowed, and the plungers 28a, 29a of the solenoids 28, 29 are retreated if the shift is prohibited. When the shift is allowed, a click pin 25b fixed to the select lever is coupled with the plungers 28a, 29a, shift permission is sensed by a resistance feeling at this time. When the shift is prohibited, no resistance feeling is felt, and shift inhibition is sensed by the feeling at that time.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention reduces or increases a sense of moderation at the time of a shift operation applied to a select lever when a shift stage after an upshift or a downshift in a manual shift mode is out of a shiftable range. The present invention relates to a shift operation device of a transmission to be changed.

[0002]

2. Description of the Related Art Generally, in an automatic transmission, when a select lever is set to a D (drive) range, data indicating a running state of a vehicle such as a vehicle speed and a throttle opening are set as parameters based on shift characteristics set in advance. The automatic shift speed optimal for the traveling condition is automatically set. However, in recent automatic transmissions, a so-called manual shift mode in which a driver can arbitrarily select a shift speed is provided in such a so-called automatic shift mode. The technology of co-installing is disclosed in
Has been proposed.

[0003] In this manual shift mode, a driver can perform a shift operation with a select lever with the same feeling as a normal manual transmission. For example, Japanese Patent Application Laid-Open No. 2-133240 discloses There has been disclosed a technology in which a shift speed in a manual shift mode is displayed on a meter panel, and a driver visually recognizes a current shift speed.

In an automatic transmission having a manual shift mode, shifting is prohibited against the driver's intention in order to prevent engine overturn due to a sudden downshift or engine stall due to insufficient torque after an upshift. Safety control is provided.

[0005]

However, Japanese Patent Laid-Open No. 2-1
According to the technique disclosed in Japanese Patent No. 33240, the driver must visually recognize whether or not the shift has been performed, so it is difficult to confirm during the travel whether or not the shift has been actually performed. The inconvenience of not being able to concentrate on the computer arises.

To cope with this, for example, Japanese Patent Laid-Open Publication No.
Japanese Patent No. 2661 discloses a technique in which when a shift is prohibited, a driver is notified of the fact by an alarm.
According to this prior art, it is possible to recognize by aural means that shifting has been prohibited, so that the burden on the driver is reduced, but the driver operates the select lever to perform the shifting operation. It is not possible to judge whether or not shifting has been prohibited unless it is afterwards.Therefore, on a traveling road where an upshift or a downshift is immediately required, such as when traveling on an uphill road with a continuous curve, a smooth shift operation is performed. Will cause trouble.

SUMMARY OF THE INVENTION In view of the above circumstances, the present invention provides a speed change device for a speed change device capable of immediately determining whether or not a speed change operation in a manual speed change mode is permitted, and achieving smooth speed change operability. The purpose is to provide.

[0008]

SUMMARY OF THE INVENTION In order to achieve the above object, a shift operation device of a first transmission according to the present invention is a control capable of switching a shift mode between an automatic shift mode and a manual shift mode by operating a select lever. In a transmission including the device, an engagement member that engages with the select lever in a manual shift mode to provide a sense of moderation during a shift operation;
Means for setting a shiftable range in a manual shift mode based on a vehicle driving state; means for setting a current shift speed; means for comparing the shift speed with the shiftable range; Means for retracting the engaging member when the distance is out of the possible range.

A shift operation device of a second transmission is a transmission having a control device capable of switching a shift mode between an automatic shift mode and a manual shift mode by operating a select lever. An engagement member that engages to provide a sense of moderation during a gear shifting operation;
Means for setting a shiftable range in a manual shift mode based on a vehicle driving state; means for setting a current shift speed; means for comparing the shift speed with the shiftable range; Means for increasing the urging force on the engaging member when the distance is out of the possible range.

A shift operating device of a third transmission is the shift operating device of the first or second transmission, wherein the shift speed is a target shift speed set by the control device.

[0011] A fourth aspect of the present invention provides a speed change device of the first or second speed change device, wherein an urging force on the engaging member is variably set by an electromagnetic solenoid.

A fifth aspect of the present invention provides a speed change device of the first or second speed change device, wherein an urging force on the engaging member is variably set by hydraulic pressure.

A sixth aspect of the present invention provides a shift operating device of the first or second transmission, wherein the urging force on the engaging member is variably set by air pressure.

A shift operating device of a seventh transmission is characterized in that, in the shift operating device of the first or second transmission, an urging force on the engaging member is variably set by a motor.

That is, in the shift operation device of the first transmission, when the shift mode is set to the manual shift mode, the shift range that is set based on the vehicle operating state is compared with the current shift speed to determine the shift speed. When the gear is in the shiftable range, the engaging member is engaged with the select lever at the time of the shift operation to give the driver a sense of moderation, while when the gear is out of the shiftable range. Reduces the sense of moderation by retracting the engaging member from the select lever at the time of a shift operation.

In the shift operating device of the second transmission, when the shift mode is set to the manual shift mode, a shiftable range set based on a vehicle operating state is compared with a current shift speed, and the shift speed is determined. When the gear is in the shiftable range, the engaging member is engaged with the select lever at the time of the shift operation to give a sense of moderation to the driver, while, when the gear is out of the shiftable range, The urging force on the select lever at the time of a shift operation by the engagement member is increased to increase the sense of moderation.

In the shift operating device of the third transmission, the first
Alternatively, in the shift operation device of the second transmission, the shift speed is set as a target shift speed set by the control device.

In the shift operation device of the fourth transmission, the first transmission
Alternatively, in the speed change operation device of the second transmission, the urging force on the engagement member is variably set by an electromagnetic solenoid.

In the shift operation device of the fifth transmission, the first transmission
Alternatively, in the shift operation device of the second transmission, the urging force on the engagement member is variably set by hydraulic pressure.

A shift operating device of a sixth transmission is the shift operating device of the first or second transmission, the biasing force for the engaging member being variably set by supplying air pressure.

The shift operating device of the seventh transmission is the shift operating device of the first or second transmission, wherein the urging force on the engaging member is variably set by a motor.

[0022]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS An embodiment of the present invention will be described below with reference to the drawings. 1 to 10 show a first embodiment of the present invention. FIG. 7 shows an overall view of the automatic transmission.

In FIG. 1, reference numeral 1 denotes an engine. The output shaft of the engine 1 is connected to a forward / reverse switching device 4 provided in a continuously variable transmission 3 via a starting clutch 2 such as an electromagnetic clutch or a torque converter. I have.

The forward / reverse switching device 4 is a continuously variable transmission 5
Is connected to a pulley input shaft 5b that supports the primary pulley 5a, and a secondary pulley 5d is axially mounted on a pulley output shaft 5c arranged in parallel with the pulley input shaft 5b. The drive belt 5e is wound.

Further, the pulley output shaft 5c is connected to a differential gear 6b via a reduction gear group 6a of the final reduction gear 6.
A drive shaft 7 for connecting a front or rear drive wheel 7a is connected to the differential device 6b.

In the continuously variable transmission 5, a pulley groove width is set by a primary pressure supplied to a primary hydraulic chamber 5f provided in the primary pulley 5a. The secondary pressure supplied to the secondary hydraulic chamber 5g provided in the secondary pulley 5d applies a tension required for transmitting torque to the secondary pulley 5d. The primary pressure and the secondary pressure are set in a transmission control unit (TCU) 21 described later based on the engine operating state, and the groove width of both pulleys 5a and 5d in the continuously variable transmission 3 is set in an inversely proportional state. Obtain the desired gear ratio.

Next, the hydraulic circuit of the continuously variable transmission 3 will be described. Reference numeral 11 in the figure denotes an engine-driven oil pump. The discharge port of the oil pump 11 is connected to a line pressure control valve 13 via a line pressure oil passage 12.
Further, the line pressure control valve 13 is connected to the line pressure oil passage 12.
, A secondary hydraulic chamber 5g provided on a secondary pulley 5d of the continuously variable transmission 5, a primary pressure control valve 14,
The solenoid valve 15a for line pressure control and the solenoid valve 15b for primary pressure control, which constitute the shift control actuator 15, are communicated via an orifice 16.

The line pressure control solenoid valve 15a and the primary pressure control solenoid valve 15b are controlled by a control signal such as a duty ratio from a transmission control unit (TCU) 21 to be described later. The line operating pressure is supplied from the valve 15a to the line pressure control valve 13 via the oil passage 17, and the primary operating pressure is supplied from the primary pressure control solenoid valve 15b to the primary pressure control valve 14 via the oil passage 18.

The line pressure control valve 13 sets the speed ratio i and the line pressure Ps based on the engine torque T based on the line operating pressure. In the primary pressure control valve 14, the line pressure Ps, which is the original pressure, and the primary operating pressure are balanced, so that the line pressure oil passage 12 upstream of the primary pressure control valve 14 and the primary pressure of the continuously variable transmission 5 are adjusted. By switching between an oil supply position for connecting the oil passage 19 communicating with the primary hydraulic chamber 5f provided on the pulley 5a and an oil discharge position for shutting off the oil passages 12 and 19 and draining the oil passage 19, The shift control is performed by controlling the hydraulic pressure supplied to the primary hydraulic chamber 5f.

Reference numeral 22 denotes a speed change operation portion provided on a console box in the vehicle compartment. A P (parking) range, R (reverse) range, and N (neutral) range are provided on a panel surface 22a of the speed change operation portion 22. , D (drive) range, DS (drive sports mode) range, and the normal automatic transmission slot 22b
And a manual transmission slot 22c having an up position (+) and a down position (-) at both ends, and the two transmission slots 22b, 22b communicate with each other via a gate 22d formed beside the D range. Have been.

A frame 23 is provided inside the speed change operation section 22 and a guide plate 24 is provided. The guide plate 24 is formed with a guide groove 24a extending along both the speed change slots 22b and 22c and the gate 22d. Furthermore, this guide groove 2
4a, a click box 2 fixed to a support plate 26a protruding from one side of the select lever 26.
5, a click pin 25b that protrudes by receiving the urging force of the compression spring 25a is engaged.

The select lever 26 is movably inserted into the two shift slots 22b and 22c and the gate 22d, and its base is tiltably supported in the shift operating section 22. I have.

The select lever 26 is connected to the guide groove 2
The shift slots 22b and 22c and the gate 22d are moved while being supported by the click pin 25b that traces 4a.

The frame 23 is provided with an up switch 27a and a down switch 27b for holding the select lever 26 in a neutral state when the select lever 26 is tilted toward the manual transmission slot 22c. When the select lever 26 is tilted toward the up position (+) of the manual transmission slot 22c, the up switch 27a is turned on. When the select lever 26 is tilted toward the down position (-), the select lever 26 is turned on. The down switch 27b is turned on.

On the other hand, in the guide groove 24a corresponding to the manual transmission slot 22c, a first solenoid 28, which is an example of an engagement member provided on the upshift side, and an engagement member provided on the downshift side. A second solenoid 29, which is an example, is fixedly accommodated in a state housed in a solenoid case 30, and when the select lever 26 is tilted to the up position (+) side, the click pin 25b is moved in the middle thereof. When the user passes over the plunger 28a provided on the one solenoid 28 and tilts the select lever 26 to the down position (-) side, the click pin 25b moves on the plunger 29a provided on the second solenoid 29 on the way. Pass through.

The two solenoids 28 and 29 are turned off.
In this state, the plungers 28a and 29a are projected from the guide groove 24a by the urging force of the compression springs 28b and 29b.

A shift mode switch 31 for detecting passage of the select lever 26 is provided at the gate 22d.
Are arranged. When the select lever 26 is tilted to the manual shift slot 22c via the gate 22d, the shift mode changeover switch 31 detects passage of the select lever 26, and the shift mode is switched from the automatic shift mode to the manual shift mode. Driver's seat meter panel 3
The current gear stage is displayed on the gear stage display section 33 provided for the second gear.

In the manual transmission mode, the speed ratio of the continuously variable transmission 5 does not continuously change, but is set to a fixed speed ratio of a plurality of stages as in a general automatic transmission.
By operating 6, the shift speed is shifted up or down one by one. However, if the operating region after the upshift or downshift is in the region where engine stall or overspeed occurs, upshift or downshift is prohibited. In the area where the upshift is prohibited, the first
The solenoid 28 is turned on and the plunger 28a is retracted,
In a region where downshifting is prohibited, the second solenoid 29 is turned on to move the plunger 29a backward. still,
When the vehicle is stopped, the shift speed is automatically downshifted to the first speed.

The shift control of the continuously variable transmission 5 and the operation of the solenoids 28 and 29 in the manual shift mode
N, OFF control is performed by the transmission control device (TC
U) 21.

As shown in FIG. 8, the TCU 21
A PU 21a, a ROM 21b, a RAM 21c, an input interface 21d, and an output interface 21e are mainly configured by a microcomputer connected to each other via a bus line, and other components such as a constant voltage circuit 21f that supplies a stabilized voltage to each unit. The constant voltage circuit 21f is connected to a battery 35 via an ignition switch 34.

The input interface 21d includes an up switch 27a, a down switch 27b, a shift mode changeover switch 31, and a shift control for the continuously variable transmission 5 such as a throttle opening sensor, a rotation speed sensor, a vehicle speed sensor, and an idle switch. Various sensors and switches 36 for detecting various parameters are connected.

On the other hand, the output interface 21e
, A first solenoid 28, a second solenoid 29, a continuously variable transmission 3, a shift position display section 33, and the like. still,
The shift position display section 33 displays the current shift position when the shift mode is in the manual shift mode (the select lever 26 is on the side of the manual shift slot 22c).

When the shift mode is the manual shift mode, the TCU 21 sets the maximum shift speed Tmax and the minimum shift speed Tmin that can be shifted based on the current operation state, and then sets the target shift speed set in the TCU 21. Step Tt
And the maximum speed Tmax, and the speed Tt and the minimum speed Tmin.

When Tt ≧ Tmax, the first solenoid 28 is turned on, and the plunger 28a protruding from the guide groove 24a is retracted. Also, Tt ≦ Tmi
When n, the second solenoid 29 is turned on, and the plunger 29a protruding from the guide groove 24a is retracted.

As a result, when the driver operates the upshift or downshift with the select lever 26 and the operation area is in the area where the upshift or downshift is prohibited, the first solenoid 28 or the second solenoid 29 is used. Plungers 28a, 29a are retracted, and the tips of the plungers 28a, 29a are immersed in the guide grooves 24a, so that the click pins 25b passing over the plungers 28a, 29a are disengaged from the plunger 28.
a, 29a, or a slight sense of resistance when engaged, and the driver does not have the appropriate moderation that can normally be obtained, so the driver feels that shifting is prohibited. To figure out.

The ON / OFF control of the two solenoids 28 and 29 executed by the TCU 21 is described in detail in FIG.
This is executed according to a solenoid control routine shown in FIG. This routine is executed for each set cycle.
In step 1, the current shift mode TMODE is read, and a mode value M corresponding to the current shift mode is set. This mode value M
Is, for example, 1-bit data. M = 0 indicates an automatic shift mode, and M = 1 indicates a manual shift mode.

Then, in step S2, the mode value M
, The current shift mode is determined based on the above. If the shift mode is the manual shift mode, the process proceeds to step S3. If the shift mode is the automatic shift mode, the routine is exited.

In step S3, the current target gear Tt is set. Thereafter, when the process proceeds to step S4, the maximum shift speed Tmax is set with reference to the maximum shiftable shift map TmaxMAP based on the vehicle speed V (Tm).
ax ← TmaxMAP), and at step S5, the vehicle speed V
The minimum shift speed Tmin that can be shifted is set with reference to the minimum shiftable shift map TminMAP based on (Tm
in ← TminMAP).

As shown in FIG. 6, in the present embodiment, the speed of the continuously variable transmission 5 in the manual speed change mode is divided into six speeds, and an upper limit H and a lower limit L of the engine speed NE are determined. A gear position in a shiftable range is set based on the vehicle speed V.
For example, if the current vehicle speed V is between V7 and V8,
The maximum shift speed Tmax that can be shifted is the sixth speed, and the minimum shift speed Tmin is the third speed. The maximum shiftable map TmaxMAP and the minimum shiftable map TminM
The AP stores a maximum shift speed Tmax and a minimum shift speed Tmin using the vehicle speed V as a parameter based on the shift characteristics.

Next, in step S6, the minimum shift speed Tmin is compared with the target shift speed Tt, and Tmin ≧
If Tt, turn on the second solenoid 29 in step S7
Then, the process proceeds to step S9. If Tmin <Tt, the process proceeds to step S8, where the second solenoid 29 is turned off.
Then, the process proceeds to step S9.

When the second solenoid 29 is turned on, the plunger 29a of the second solenoid 29 is retracted, and when the driver inclines the select lever 26 to the down position (-), the click connected to the select lever 26 is clicked. Since the click pin 25b provided in the box 25 does not engage with the plunger 29a of the second solenoid 29, or has a slight sense of resistance even if the click pin 25b engages, the driver does not receive a normal moderation feeling ( It feels that the downshift is prohibited.

When the second solenoid 29 is turned off, the plunger 29a of the second solenoid 29 protrudes under the urging force of the compression spring 29b, and the driver moves the select lever 26 to the down position (-). The click pin 25b provided on the click box 25 is engaged with the plunger 29a of the second solenoid 29, and the click pin 25b is
After retreating against the urging force of a and passing through the plunger 29a, the click pin 25b projects again due to the urging force of the compression spring 25a. Therefore, the driver senses that the downshift is permitted based on a sense of moderation (section A in FIG. 9) when the click pin 25b passes over the plunger 29a.

Thereafter, when the routine proceeds to step S9, the maximum gear position Tmax is compared with the target gear position Tt. When Tmax ≦ Tt, the process proceeds to step S10,
The first solenoid 28 is turned on, and the routine exits. Also, T
If max> Tt, the process proceeds to step S11, and the first
The solenoid 28 is turned off and the routine exits.

As shown in FIG. 2, the first solenoid 2
8 turns on, the plunger 2 of the first solenoid 28 is turned on.
8a is retracted, and the click pin 25b provided in the click box 25 connected to the select lever 26 is moved to the first position.
Since it does not engage with the plunger 28b of the solenoid 28,
The driver is not given a sense of moderation (see FIG. 10), and the driver senses that the upshift has been prohibited.

When the first solenoid 28 is turned off, the plunger 28a of the first solenoid 28 protrudes under the urging force of the compression spring 28b, and when the driver moves the select lever 26 to the up position (+). The click pin 25b provided on the click box 25 is engaged with the plunger 28a of the first solenoid 28, and the click pin 25b is
After retreating against the urging force of a and passing through the plunger 28a, the click pin 25b projects again due to the urging force of the compression spring 25a. Therefore, the driver senses that the upshift is permitted based on a sense of moderation (section A in FIG. 9) when the click pin 25b passes over the plunger 28a.

When the select lever 26 is in the manual shift slot 22c, the neutral state is maintained by the up switch 27a and the down switch 27b, and when the select lever 26 is tilted to the up position (+), the up switch is turned on. 27a turns on against the biasing force of the return spring built in, and select lever 2
When the switch 6 is tilted to the down position (-), the switch is turned on against the biasing force of the built-in return spring of the down switch 27b.
It is automatically returned to the neutral position by receiving the urging force of the return spring built in 7a, 27b.

Table 1 shows the relationship between the shiftable range based on the vehicle speed V and the target shift speed based on the shift characteristics shown in FIG. In the table, ○ indicates solenoid ON, and X indicates solenoid OFF.

[0058]

[Table 1]

In this embodiment, the two solenoids 2 are controlled by the TCU 21 which executes the shift control of the continuously variable transmission 3.
Although the forward and backward movements of the solenoids 8 and 29 are controlled, the solenoids 28 and 29 may be controlled by a dedicated solenoid control unit (SCU) 40 as shown in FIG.

That is, the SCU 40 has a CPU 40
a, a ROM 40b, a RAM 40c, an input interface 40d, and an output interface 40e are mainly configured by a microcomputer connected to each other via a bus line, and other components such as a constant voltage circuit 40f for supplying a stabilized voltage to each unit. The constant voltage circuit 40f is connected to the battery 35 via the ignition switch 34.

The input interface 40d is connected to an up switch 27a, a down switch 27b, a shift mode changeover switch 31, an output interface 21e of the TCU 21, and the like, while the output interface 40e is connected to a first solenoid 28 and a second solenoid. 2
9, the continuously variable transmission 3, the gear position display section 33, and the TC
Since the input interface 21d of the U21 is connected and the control operation is the same as that of the TCU 21 shown in FIG. 8, the description is omitted.

FIG. 12 shows a second embodiment of the present invention.
In the present embodiment, first and second electromagnetic solenoid type sliders 41 and 42 are employed as engagement members, and both sliders 41 and 42 are disposed on one side of the manual transmission slot 22c.
When energization of both sliders 41 and 42 is OFF, plungers 41 provided on both sliders 41 and 42 are provided.
The plungers 41a, 42a are in a protruding state separated from the stoppers 43a, 43b which also serve as electromagnets under the urging force of the compression springs 41b, 42b.
A curved guide surface 41 is attached to the distal end surfaces of rods 41e and 42e which are inserted through holders 41c and 42c fixedly mounted at the distal end of a through compression springs 41d and 42d so as to be able to move forward and backward.
f, 42f are formed.

When the select lever 26 is tilted toward the manual transmission slot 22c, the select lever 26 is held by the up switch 27a and the down switch 27b to maintain the neutral position. When upshift or downshift is permitted, the select lever 2
6 is tilted to the up position (+) or the down position (-), the up switch 27a or the down switch 27b is pressed, and the up switch 27a or the down switch 27b is turned on before the up switch 27a or the down switch 27b is turned on. 1st slider 41 or 2nd slider 4
Guide surfaces 41 of rods 41e, 42e provided at the tip of
The select lever 26 is engaged with the rods f and 42f, and the rods 41e and 42e are retracted against the urging forces of the compression springs 41d and 42d. At this time, the resistance is transmitted to the driver as a sense of moderation. It senses that upshift or downshift is allowed.

When upshifting is prohibited, for example, the power supply to the first slider 41 is turned on, and as shown in FIG. 12, the plunger 41a is attracted to the stopper 43a which also serves as an electromagnet and retreats. I do. As a result, the guide surface 41f provided at the tip of the first slider 41 is in a position to retract with respect to the select lever 26, and when the select lever 26 is tilted to the up position (+), the guide surface 41f retracts. As a result, a normal sense of moderation cannot be obtained, and the driver senses that upshifting is prohibited.

Similarly, when downshifting is prohibited, the power supply to the second slider 42 is turned ON, and the plunger 42a moves backward, so that the guide surface 42f is retracted and the select lever 26 is moved to the down position ( When leaning to-), the driver does not feel the usual moderation feeling and the driver senses that downshifting is prohibited.

FIG. 13 shows another example of the two sliders 41 and 42. In the present embodiment, the slider 41 (4
2) is controlled by hydraulic pressure. When upshifting (or downshifting) is prohibited, the hydraulic switching valve 45 is turned on as shown in the figure, and the hydraulic pump 46 is turned on by the slider 41 (42). The plunger 41a (42a) is retracted against the urging force of the compression spring 41b (42b) by communicating with the working chamber 41g (42g).

On the other hand, when upshifting (or downshifting) is permitted, the hydraulic switching valve 45 is turned off.
FF operation is performed. Then, the hydraulic pressure flowing into the operation chamber of the slider 41 (42) is drained, and the plunger 41a (42a) is compressed by the compression spring 41b (4).
It is projected under the biasing force of 2b) and is returned to the initial state.

FIG. 14 shows the two sliders 41 (42).
2 shows another example of the embodiment. In the present embodiment, the slider 41 (4
The forward / backward movement of the plunger 41a (42a) inserted in 2) is controlled.

That is, when the upshift (or downshift) is prohibited, the flow path switching valve 47 is operated, and the intake passage 48a downstream of the throttle valve 48 serving as a negative pressure supply source and the slider 41 (42) With the spring chamber 41h. Then, the plunger 41a (42a) is sucked against the urging force of the compression spring 41b (42b) and retracts. On the other hand, when the upshift (or downshift) is permitted, the flow path switching valve 47 communicates the spring chamber 41h with the atmosphere passage 44, and the spring chamber 4
Atmosphere is introduced for 1 h. Then, the plunger 41a
(42a) receives the urging force of the compression spring 41b (42b) and returns to the initial state.

FIG. 15 shows still another embodiment of the second embodiment. In this embodiment, the slider 41 (4
The air pump 49 serving as a positive pressure supply source performs the reciprocating operation 2).
When the upshift (or downshift) is prohibited, the air pump 49 and the working chamber 41g of the slider 41 (42) are connected via the flow path switching valve 50. 42g) and
Compressed air is supplied to the working chamber 41g (42g), and the plunger 41a (42a) is compressed by a compression spring 41b (42g).
b) Retreat against the biasing force. On the other hand, when the upshift (or downshift) is permitted, the air pump 49 and the working chamber 41g (42g) communicate with the atmosphere passages 44a and 44b through the flow path switching valve 50, and By releasing the compressed air supplied to the working chamber 41g (42g) to the atmosphere, the compression spring 4
1b (42b) by the plunger 41a
(42a) is returned to the initial state.

FIG. 16 shows a third embodiment of the present invention. In the present embodiment, a motor-driven slider 41 (42) is used as an engagement member, and a plunger 41a (42) provided on the motor-driven slider 41 (42).
The motor 52a (52b) screwed into the screw portion 41j (42j) screwed at the tip of the plunger 41a
The forward / backward movement of (42a) is controlled.

That is, when upshifting (or downshifting) is permitted, the motor 52a (5
2b), the plunger 41a (42a) is made to protrude, and the guide surface 41f (42f) at the tip is brought to a position where it engages with the select lever 26 (see FIG. 12). On the other hand, when the upshift (or downshift) is prohibited, the plunger 41a (42a) is retracted by the motor 52a (52b), and the leading guide surface 41f (42f) is moved to the select lever 26. To the non-engaging position.

FIG. 17 shows a fourth embodiment of the present invention. In the present embodiment, a holder 41c (42c) is fixedly mounted on an upper portion of a flat plate 53 swingable about a base portion 53a.
, And the upper end of the flat plate 53 contacts the stopper 55,
The holder 41c (4
The position of the guide surface 41f (42f) formed at the tip of the rod 41e (42e) inserted through 2c) is regulated.

When the upshift (or downshift) is prohibited, the electromagnet opposing the rear surface of the flat plate 53 is energized, and the flat plate 53 is attracted against the urging force of the return spring 54 and attracted. Guide surface 41f (4
2f) is retracted to the disengaged position with respect to the select lever 26.

As described above, according to the above embodiments,
When the upshift or downshift is permitted when the select lever 26 is upshifted or downshifted while traveling in the manual shift mode, a sense of moderation is given to the select lever 26, and the upshift or downshift is performed. When the shift is prohibited, the moderation feeling is not given to the select lever 26, so that the permission or prohibition of the upshift or the downshift can be immediately detected by the feeling at hand when operating the select lever 26.

The present invention is not limited to the above embodiments. For example, when an upshift or a downshift is prohibited, the urging force of the engaging member with respect to the select lever is increased to select the upshift or downshift. The resistance at the time of the shift operation by the lever may be increased, and the fact that the shift operation is prohibited by the resistance may be detected.

[0077]

As described above, according to the present invention,
When the target shift speed after the shift operation is set within the shiftable range in the manual shift mode and set based on the driving state of the vehicle, a sense of moderation is obtained by the engagement member at the time of the shift operation by the select lever, and When the target shift speed is out of the shiftable range, the urging force on the engagement member is reduced or increased so that a sense of moderation cannot be obtained, or a sense of resistance is enhanced. Therefore, the driver can immediately detect whether or not the shift is permitted or prohibited with the touch of the select lever at the time of the shift operation without visually confirming it. You can concentrate. as a result,
For example, when traveling on an uphill road with a continuous curve, a smooth gear change operation can be performed even on a traveling road where an upshift or a downshift is required immediately.

[Brief description of the drawings]

FIG. 1 is a sectional side view of a speed change operation unit according to a first embodiment of the present invention.

FIG. 2 is a sectional side view of a main part of the speed change operation unit.

FIG. 3 is a sectional view taken along the line III-III of FIG. 2;

FIG. 4 is a plan view of the shift operation unit.

FIG. 5 is a flowchart showing a solenoid control routine.

FIG. 6 is an explanatory diagram showing shift characteristics.

FIG. 7 is an overall view of the automatic transmission.

FIG. 8 is a circuit diagram of the transmission control device.

FIG. 9 is a characteristic diagram showing the operating force of the select lever when shifting is permitted.

FIG. 10 is a characteristic diagram showing the operating force of the select lever when shifting is prohibited.

FIG. 11 is a circuit diagram of a solenoid control device and a transmission control device according to another embodiment.

FIG. 12 is a plan cross-sectional view around an engagement member provided in a shift operation portion according to a second embodiment of the present invention.

FIG. 13 is a plan cross-sectional view showing the periphery of an engaging member according to another embodiment of the present invention.

FIG. 14 is a plan cross-sectional view showing the periphery of an engaging member according to another embodiment of the present invention.

FIG. 15 is a cross-sectional plan view of the periphery of the engaging member according to still another embodiment.

FIG. 16 is a plan sectional view of a main part of an engagement member according to a third embodiment of the present invention.

FIG. 17 is a plan sectional view of a main part of an engagement member according to a fourth embodiment of the present invention.

[Explanation of symbols]

 3: Continuously variable transmission 21: Transmission control device (control device) 22: Shift operation part 26: Select lever 28, 29, 41, 42 ... Engaging member 46: Hydraulic pump 48 ... Throttle valve 49: Air pump 52a, 52b ... Motor TMODE ... Shift mode Tt ... Target gear

Claims (7)

[Claims] 1. A transmission having a control device capable of switching a shift mode between an automatic shift mode and a manual shift mode by operating a select lever. An engagement member for giving a feeling, a means for setting a shiftable range in a manual shift mode based on a vehicle driving state, a means for setting a current shift speed, and comparing the shift speed and the shiftable range. And a means for retracting the engaging member when the shift speed is out of the shiftable range. 2. A transmission having a control device capable of switching a shift mode between an automatic shift mode and a manual shift mode by operating a select lever. An engagement member for giving a feeling, a means for setting a shiftable range in a manual shift mode based on a vehicle driving state, a means for setting a current shift speed, and comparing the shift speed and the shiftable range. And a means for increasing the urging force on the engagement member when the shift speed is out of the shiftable range. 3. The shift operation device for a transmission according to claim 1, wherein the shift speed is a target shift speed set by the control device. 4. The apparatus according to claim 1, wherein the urging force on said engaging member is variably set by an electromagnetic solenoid.
Alternatively, the shift operation device of the transmission according to 2. 5. A shift operating device for a transmission according to claim 1, wherein the urging force on said engaging member is variably set by hydraulic pressure. 6. A shift operating device for a transmission according to claim 1, wherein the urging force on said engaging member is variably set by air pressure. 7. The speed change operation device for a transmission according to claim 1, wherein an urging force on said engagement member is variably set by a motor.