JPS6220923B2 - - Google Patents

Description

[Detailed description of the invention] The present invention relates to a transmission operating device.

In recent manual transmissions for large vehicles such as trucks and buses, manual transmissions are boosted using energy such as electricity or fluid pressure and transmitted to the transmission in order to facilitate gear shifting operations. A control device has appeared.

An example of such a device will be explained using FIGS. 1 to 3.

What is shown in Figure 1 is a device installed on a bus, which consists of a command unit A located in the driver's seat, a signal processing unit B consisting of a relay circuit, etc., and a gear shift unit D attached to a transmission C. It's summery.

The command unit A operates switches S1 and _S2 , which are signal generating means shown in FIG. 3, by operating a lever, which is a manually operated member, to a gear shift position corresponding to the shift pattern shown in _FIG . let At this time, switch S ₁ selects the shift directions Q ₁ , Q ₂ and Q ₃ of the above shift pattern, and switch S ₂ selects the positions P ₁ , P ₂ and P ₃ of the same pattern in the select direction.
After the signal is processed by the signal processing unit B, it is given to the gear shift unit D, which constitutes the boosting means.

The gear shift unit D has a solenoid valve operated by the above-mentioned signal and a power cylinder to which positive pressure air is supplied from an air tank through the same valve to operate the select fork and shift fork of the transmission. The output signal from the signal processing unit B serves to change the engagement mode of the transmission C in the select direction and then in the shift direction. This gear shift unit D is also equipped with a switch for detecting the meshing position of the gears, and the signals from this switch are shown in FIG. 3 as P' ₁ , P' ₂ , P' ₃ and Q' ₁ , Q' ₂ , As shown by Q' ₃ , the select completion signal and then the output signal P ₁ from the signal processing unit B as the shift completion signal.
It acts on the unit B to cut off P ₂ , P ₃ and Q ₁ , Q ₂ , Q ₃ , thereby stopping the biasing operation of the power cylinder to the fork.

By the way, when the transmission is shifted through a boosting means such as a gear shift unit that is operated by energy such as air pressure, the driver does not directly operate the transmission, and there is no need for the gear shifting operation. Because the required effort is so small, there is almost no sense that the gear shifting operation of the transmission has been completed, which can give the driver a sense of anxiety, which affects the driver's ability to concentrate on driving operations other than gear shifting operations. There was a risk that this could cause an accident.

The present invention has been proposed in view of the above, and includes a manual operation member formed to selectively move along an operation pattern having paths of a select direction and a plurality of shift directions; Signal generating means for operating a member to command a gear change, detecting that the manually operated member is moving along any one of the selected paths in the shift direction, and generating a command signal corresponding to the gear shift command operation; a signal processing unit that receives the command signal and generates a gear position signal that instructs the gear position; and a gear shifter that uses the gear position signal to shift the transmission to a gear position that corresponds to the gear change command operation of the manual operating member. a unit, an inhibiting means that is provided to be engageable with the manual operating member and applies an operating reaction force to the manual operating member to impede the movement of the manual operating member, and a means for causing the transmission to respond to the gear shift signal. A detection means for detecting whether or not the gear is in a gear position, and a control means for controlling an operation reaction force of the obstruction means according to the output of the detection means, and the gear is in a gear position according to the gear position signal. When the detection means detects that the transmission has been shifted, the control means releases the operation reaction force of the obstruction means, thereby causing the manual operation member to change the speed of the selected one of the above. The gist of the present invention is a transmission operating device characterized in that it is configured to smoothly move along a path in a shift direction to complete a shift.

According to the present invention, when the driver moves the manual operating member to perform a gear shifting operation, the movement of the manual operating member is counteracted by the action of the impeding means until the gear shifting state of the transmission reaches the desired state. When a large force is applied and the gear shift state of the transmission reaches the desired state, the control means controls the action of the obstruction means, and the reaction force against the movement of the manual operation member becomes small or completely eliminated, so that the driver can You can tell when the gear shift operation of the transmission has been completed because the movement of the manual operation member suddenly becomes lighter, and after the gear shift is completed, you can concentrate on other driving operations without being distracted by the gear shift operation. It is something. At this time, the tactile sense of the driver's hands is used to make the driver perceive that the transmission has completed shifting, so visual and auditory senses can be used to confirm the safety of driving, etc., making it possible to drive with an extremely high degree of safety. This is the result.

Next, embodiments of the present invention will be described in detail using the drawings.

The embodiment device shown below is related to the bus transmission operating device shown in FIGS. 1 to 3, and includes a command unit A, a signal processing unit B, a transmission C,
It is equipped with a gear shift unit D, of which the signal processing unit B, transmission C, and gear shift D are as described above, and detailed explanations thereof will be omitted. Now, the first embodiment of the command unit A is shown in FIGS. 4 to 8, and includes 2,
4, 6, and 8 are respective casing members forming the command unit casing; 10 is a shift shaft rotatably supported by the casing member 4; and 14 is a shaft connected to the shift shaft 10 via a pin 12 so as to move vertically within the casing. The extending connecting rod 16 is a lever whose lower end is fitted into the upper shaft portion of the connecting rod 14 via a key 18, and whose upper end head extends through the casing member 2 and projects outside the command unit casing. And this lever 1
6 is urged upward by a spring 20 so that its spherical portion 22 comes into contact with the inner surface of the casing member 2. By the way, casing member 2
The inner surface of the lever 16 that comes into contact with the spherical surface 22 is formed into a spherical shape centered on the intersection of the axes of the shift shaft 10 and the pin 12, and the lever 16 is located near the top of the lever 16 as shown in FIG. A guide groove 24 is formed to guide the shift pattern to a position corresponding to the shift pattern. That is, the guide groove 24 allows the lever 16 to move along a set path. Note that the curvature of the spherical portion 22 of the lever 16 is approximately equal to the curvature of the inner surface of the casing member 2. Then, as shown in Fig. 5, lever 1
6 moves along the guide groove 24 in the select direction shown in FIG. 2, the connecting rod 14 swings about the axis of the pin 12 and does not rotate the shift shaft 10; When the lever 16 moves along the guide groove 24 in the shift direction shown in FIG. It is adapted to rotate together with the rod 14. Further, a hole 26 is formed in the cylindrical portion at the lower end of the connecting rod 14, and a sphere 30 that comes into contact with the inner surface of the casing member 6 by the downward urging force of the spring 28 is disposed in the hole 26. . Incidentally, like the casing member 2, the inner surface of the casing member 6 is also formed into a spherical shape centered at the intersection of the axes, and the sphere 30 moves on this inner surface in accordance with the movement of the lever 16.
When the lever 16 is guided by the guide groove 24 of the casing member 2 and moves to each shift position corresponding to the shift pattern shown in FIG. 2, it engages with each engagement hole 32 formed in the casing member 6. It's summery. In addition, 34 is a casing member that extends upward by connecting two horizontal bars that sandwich the columnar part at the lower end of the connecting rod 14 with a gap and extend parallel to each other, and to the left and right ends of the horizontal bars in FIG. 7, respectively. Pins 40 and 42 on shafts 36 and 38, respectively, which are journalled in
It is a swinging member consisting of a vertical plate portion that is locked through a vertical plate portion, and in this case, the axes of the shafts 36 and 38 are arranged so as to coincide with the axis of the pin 12,
When the lever 16 moves in the shift direction, the cylindrical section moves along the space between the two horizontal bars, that is, the lever 16 moves in the shift direction without causing the swinging member 34 to swing. When moving in the selection direction, the cylindrical portion comes into contact with one of the horizontal bars to swing the swinging member 34, and the swinging of the swinging member 34 performed in this manner The shafts 36 and 38 are caused to rotate through the pins 40 and 42. Also, the seventh
A swinging body 46 is connected to the left end of the figure via a pin 44, and the bottom end of this swinging body 46 in FIG. 7 is fixed to the casing member 4 via a base member 48 as shown in FIGS. A movable contact 54 is provided which cooperates with fixed contacts 50a, b, c and fixed contacts 52a, b, c corresponding to the fixed contacts 50a, b, c to constitute an electric switch. When the lever 16 is moved in the select direction and the swinging body 46 swings through the swinging member 34 and the shaft 36, the movable contacts 54 move to one of the fixed contacts 50a and 52a, 50b and 52b, or 50c and 52c. energization, which corresponds to the switching operation of switch _S2 in FIG. On the other hand, a swinging body 58 is connected to the right side of the shift shaft 10 in FIG. b,
A movable contact 66, which cooperates with the contacts 64c, 64a, b, and c to form a switch, is fixed. This movable contact 66 moves the lever 16 in the shift direction, and when the swinging body 58 swings via the shift shaft 10, the movable contact 66 switches the current-carrying parts of the fixed contacts 62 and 64 similarly to the movable contact 54. However, this action corresponds to the switching operation of switch _S1 in FIG. Note that the movable contact 54 and the fixed contact 50,
52 and the switch structure between the movable contact 66 and the fixed contacts 62 and 64 are as follows:
When the levers move to desired select and shift positions, the switches corresponding to the select and shift positions are turned on before the levers reach the desired positions. Also, a pin 6 is provided at the right end of the shift shaft 10 in FIG.
A cam body 70 is attached via a roller 76, and a piston rod 74 of an air cylinder 72 supported by the vehicle body is connected to the lower surface of the cam body 70 via a roller 76, as shown in FIGS. 4 and 5. ing. One end of an air passage 78 communicates with the air cylinder 72, and the other end of the air passage 78 communicates with a valve box 82 in which a solenoid valve 80 is installed. This valve box 82 is communicated with a communication passage 86 to an air tank 84 which is a supply source of pressurized air, and a passage 88 open to the atmosphere. The solenoid valve 80 is operated by a switch 90 that opens and closes in response to a signal sent to the control unit B. When the switch 90 is closed, the passage 78 is communicated with the communication passage 86, and when the switch 90 is open, the solenoid valve 80 is operated by a switch 90 that opens and closes in response to a signal sent to the control unit B. The passage 78 is communicated with an atmosphere opening passage 88. By the way, the switch 90 is closed by the output of the signal processing unit B when the signal generated when the fixed contacts 62b and 64b become energized is provided to the signal processing unit B, and the shift explained using FIG. Signal Q′ ₁ and
When _Q'3 is brought to signal processing unit B, it is opened by the output of signal processing unit B.

In the above configuration, the lever 1 while the engine is running is
6 is in the neutral position in both directions of shift/select, that is, in the position shown in _FIG . and 64b are energized, and the transmission C maintains a neutral state ( _n2 neutral state). At this time, the switch 90 is closed, and the air tank 84 is inside the air cylinder 72.
compressed air is supplied. Next, move the lever 16 in the select direction and change the position of the lever 16 to n ₂ →
n ₁ , that is, lever 1 in FIG.
6 is moved from the position shown by the solid line to the position shown by the two-dot chain line, the shift shaft 10 does not rotate, so the fixed contact 62b
While the energized state of and 64b is maintained, the swinging body 46 swings as the swinging member 34 swings, and the movable contact 5
4 energizes the fixed contacts 50a and 52a, and the select fork of the gear _shift unit D changes the meshing state of the transmission C according to the output of the signal processing unit B.
(n ₁ neutral state)). Next, when moving the lever 16 in the shift direction and displacing the position of the lever 16 from _n1 to 1st speed, that is, the lever 16 is moved from the position shown by the solid line in FIGS. 4 and 7 to the position shown by the two-dot chain line. When moving, the shift shaft 10 rotates and the movable contact 66
The contacts in contact with the fixed contacts 62b, 64b to 6
2a and 64a, the shift fork of the gear shift unit D begins to shift the gear change state of the transmission C to the first speed state. On the other hand, as the shift shaft 10 rotates, the cam body 70 also moves from the position shown by the solid line in FIG. 4 toward the position shown by the two-dot chain line, and acts to lower the piston rod 74 via the roller 76. At this time, since compressed air is supplied into the cylinder 72 from the air tank 84, the piston rod 74 exerts a relatively large reaction force against the movement of the lever 16 on the hand or finger of the driver operating the lever 16. It increases as it descends. After that, when the shift of the transmission C to the first speed state is completed, the above-mentioned shift completion signal Q' ₃ is provided to the signal processing unit B, which opens the switch 90 and moves the solenoid valve 80 to open the cylinder 7.
The compressed air in 2 is released to the atmosphere through an air release passage 88. In this state, the large reaction force that had been applied to the driver's hands and fingers is suddenly removed, and lever 1
6 quickly moves to the position corresponding to 1st gear. Next, the case of shifting from 1st speed to 2nd speed will be explained. First, move the lever 16 from the 1st gear position shown in Figure 2.
n ₁ , and the fixed contact that the movable contact 66 for shifting contacts changes from contacts 62a, 64a, to 62b,
64b, the shift fork of the gear shift unit D causes the gear change state of the transmission C to shift from the 1st speed state to the _n1 neutral state, and the switch 90 is closed by the output of the signal processing unit B, and the air is moved into the air cylinder 72 again. Compressed air is supplied.
Next, when the lever 16 is moved from n ₁ to n ₂ , the meshing state of the transmission C shifts from the n ₁ neutral state to the n ₂ neutral state due to the action of the select fork. When the lever 16 is further moved from _n2 to second speed, the fixed contacts 62b, which are energized as the shift shaft 10 rotates,
Transitioning from 64b to 62c and 64c, the shift operation of the transmission C by the shift fork is started. In this case as well, the cam body 70 acts to lower the piston rod 74 in the same way as when the lever moves from n ₁ to 1st speed, so the lever 16 is held down until the shift to 2nd speed of the transmission C is completed. A large reaction force is applied to the grasping hand or fingers, impeding the movement of the lever 16, and when the shift to the second gear is completed, the above-mentioned impediment is controlled and the lever 16 quickly moves to the second gear position. It should be noted that shifting to other gear shifting states is performed in the same manner as described above.

Therefore, when the driver moves the lever 16 to perform a gear shift operation, the presence of compressed air in the air cylinder 72 causes a reaction force against the shift of the lever 16 until the gear shift operation of the transmission C is completed. On the other hand, after the shift operation of the transmission C is completed, the inside of the air cylinder 72 is opened to the atmosphere, and the reaction force is almost eliminated, so the driver must press the lever 1.
The user can know that the gear shifting operation of the transmission has been completed by the sudden lightening of the movement of the gear 6, and after the gear shifting is completed, the driver can concentrate on other driving operations without being distracted by the gear shifting operation. . At this time, the tactile sensation of the driver's hands is used to make the driver perceive that the gear shift operation of transmission C is complete, so visual and auditory senses can be used to confirm the safety of driving, etc., and extremely safe driving can be achieved. It is possible.

In the first embodiment, the manual operation members include the lever 16, the connecting rod 14, the shift shaft 10, the swinging body 58, the movable contact 66, the swinging member 34, and the shaft 3.
6, 38, a rocking body 46, and a movable contact 54, and fixed contacts 62a, b, c and 64 are provided in the middle of the movement path of the movable contacts 66 and 54, respectively.
a, b, c and fixed contacts 50a, b, c, and 5
2a, b, and c are arranged to constitute a signal generating means,
A cam body 70 is attached to the shift shaft 10, and an air cylinder 72 to which compressed air is supplied to the cam body 70.
A solenoid valve 80 for releasing the compressed air in the air cylinder 72 to the atmosphere and a switch 90 for operating the valve 80 constitute a control means. Although the signal processing unit B to which the shift completion signal of the transmission is inputted was used as the detection means, the cam body 70 was used to constitute the obstruction means.
Regarding the use of the book air cylinder 72, two air cylinders 721 and 7 are used as shown in FIG.
22 may be used; in this case, the swinging member 92 is fitted onto the shift shaft 10 when the lever 16 is in the neutral position in the shift direction, and the upper ends of the piston rods 741, 742 (when loading compressed air). If a gap is provided between them, when the lever 16 is moved from the neutral position in the shift direction, the lever will suddenly become heavier from the state in which the swinging member 92 is in contact with the upper end of the piston rods 741, 742 and the gear will be shifted. When the gear change operation of machine C is completed, a feeling of suddenly becoming lighter again can be obtained. Also, as shown in Figure 10,
By slightly changing the configuration of the second embodiment shown in the figure, springs 941' and 942' are arranged in the above-mentioned gap, and the protrusions 921' and 922' of the swinging member 92' and the spring receivers 961' and 9
62' are in contact with each other when the lever 16 is in the neutral position, when the lever 16 is moved from the neutral position in the shift direction, the swinging member 92 will move from the neutral position to the piston rods 741' and 742'. The lever 16 gradually becomes heavier until it reaches the contact position.
At the above contact position, the weight suddenly becomes heavy, and the transmission C
After the shift operation is completed, the feeling becomes suddenly lighter again. In the first embodiment, the feeling during the speed change operation using the lever 16 can be obtained relatively arbitrarily by appropriately setting the shape of the lower surface of the cam body 70.

In the above-mentioned first and second embodiments and the third embodiment shown in FIG. Although the barrier means is configured to act on the manual operation member, in this regard, it may be configured such that the blocking means acts when shifting from a shift state other than the neutral state to the neutral state, or it may act in both cases. It may be configured to do so. Furthermore, in each of the above embodiments, when stopping the action of the power cylinder for operating the transmission forks, this was done by feeding back the shift completion signals Q' ₁ , Q' ₂ , Q' ₃ to the signal processing unit B; In this case, a switch that is turned on when the clutch is disengaged is inserted in the circuit that supplies power to the signal processing unit B, so that the signal processing unit B is operated only when the clutch is disengaged, and the connection operation of the clutch is The power cylinder for operating the transmission fork may be deenergized in response to this. In this case, the switch 90 may be independently provided with an input system having a shift completion signal and a signal corresponding to the connection operation of the contacts 62b and 64b without going through the signal processing unit B.

Furthermore, in each of the above embodiments, the command unit A is connected to the high potential side of the circuit that supplies power to the signal processing unit B.
Although the switches S ₁ and S ₂ are provided, it is also possible to arrange the signal processing unit B on the high potential side and connect the switches S ₁ and S ₂ to the ground side.

The transmission operating device of the present invention is effective not only for vehicles as shown in the above embodiments but also for general machinery.

[Brief explanation of the drawing]

FIG. 1 is a schematic explanatory diagram showing an example of a transmission operating device that performs a gear change operation using a booster, FIG. 2 is a diagram showing a gear shift/select pattern related to the device shown in FIG. 1, and FIG. The figure is a schematic electrical circuit diagram of the same device, FIG. 4 is an elevational view showing the first embodiment of the present invention applied to the same device, FIG. The figure is a sectional view taken along the line - of Fig. 4, Fig. 7 is a sectional view taken along the line - of Fig. 5, and Fig. 8 is a sectional view taken along the line - of Fig. 7. FIG. 9 is an elevational view showing a second embodiment of the present invention, and FIG. 10 is an elevational view showing a third embodiment of the invention. A...Command unit, B...Signal processing unit, C...Transmission, D...Gear shift unit,
4... Casing member, 10... Shift shaft, 14
... Connecting rod, 16 ... Lever, 24 ... Guide groove,
34... Swinging member, 36, 38... Shaft, 46...
Rocking body, 50, 52... Fixed contact, 54... Movable contact, 58... Rocking body, 62, 63... Fixed contact, 66... Movable contact, 70... Cam body, 72...
...Air cylinder, 74...Piston rod, 80...
Solenoid valve, 84...air tank, 90...switch.

Claims (1)

[Claims] 1. A manual operating member formed to selectively move along an operating pattern having a path of a select direction and a plurality of shift directions, and a shift command being operated on the manual operating member, so that the manual operating member is selected. signal generating means for detecting that the user is moving along one of the shift directions and generating a command signal corresponding to the shift command operation; a signal processing unit that generates a speed signal; a gear shift unit that uses the speed signal to shift the transmission to a speed corresponding to the speed change command operation of the manual operating member; and a gear shift unit that is engageable with the manual operating member. Obstruction means for applying an operation reaction force to the manual operation member to impede the movement of the manual operation member, and detection means for detecting whether or not the transmission is in a gear position corresponding to the gear position signal. and a control means for controlling the operational reaction force of the obstruction means in accordance with the output of the detection means, the detection means detecting that the transmission has been shifted to a gear position corresponding to the gear position signal. When the control means releases the operation reaction force of the obstruction means, the manual operation member moves smoothly along the path in the selected one of the shift directions and shifts. An operating device for a transmission, characterized in that it is configured to complete the operation.