JPH082519Y2 - Finger touch control transmission Shift operation control device - Google Patents

Description

[Detailed Description of the Invention] [Object of the Invention] (Industrial field of application) The present invention is a gear shift unit that uses air pressure in response to an operation signal from a control box in response to a shift operation of a change lever unit by a driver. And a finger touch control transmission shift operation control device configured to operate.

(Prior Art) A finger touch control gearshift unit configured to actuate a gearshift unit using air pressure in response to an operation signal from a control box in response to a shift operation of a change lever unit by a driver is considered. .

(Problems to be solved by the invention) In the case where a gear shift operation is performed using such a finger touch control gear shift unit,
As shown by the broken line A in the figure, there is a problem that the shock when the gear is engaged is large.

The purpose of the present invention is to respond to the gear change operation of the change lever unit by the operation signal from the control box,
In a finger touch control configured to operate a gear shift unit using air pressure, it is an object of the present invention to provide a finger touch control transmission shift operation control device capable of reducing a shock when a gear is engaged.

[Construction of the Invention] (Means and Actions for Solving Problems) A first chamber and a second chamber are separated by a piston that is operated by air pressure from an air pressure supply source and is connected to a transmission mechanism of a transmission. And an air cylinder for controlling the supply of the air pressure to the first chamber and the discharge of the air pressure from the first chamber.
And a second valve means for controlling the supply of the air pressure to the second chamber and the discharge of the air pressure from the second chamber.
A third valve means for opening and closing a discharge path for the air pressure discharged through the first valve means and the second valve means,
When the change lever is in the neutral position, the above first
The second valve means and the second valve means are brought into an air pressure supply state, the third valve means is closed, and the first valve means or the above-mentioned first valve means is operated in response to a change operation of the change lever from the neutral position. A finger touch characterized in that the second valve means is put into an air pressure discharge state, and when the sleeve in the transmission interlocking with the piston comes out of contact with the synchro ring, the third valve means is controlled to open. It is a control transmission shift operation control device.

(Embodiment) A finger touch control transmission shift operation control device according to an embodiment of the present invention will be described below with reference to the drawings. FIG. 1 is an air piping diagram of a finger touch control transmission shift operation control device. In the figure, 11 is an air tank in which compressed air is stored, 12
Is an air cylinder. This air cylinder 12 is a piston
It is divided into room A and room B by 13. The piston 13 is operated by the air pressure from the air tank 11 and is connected to a sleeve, which will be described in detail later with reference to FIG. 5, which is a part of the transmission mechanism of the transmission.

Air from the air tank 11 is introduced into the chamber A through a valve A which is a three-way valve. Also, the air tank 11
Is introduced into the chamber B through a valve B composed of a three-way valve. Further, the air discharged through the valve A or the valve B is opened to the atmosphere through the normally closed valve S. In FIG. 1, solid arrows show the flow of air when the valve is energized (ON), and broken arrows show the flow of air when the valve is not energized (OFF).

Next, the operation of the embodiment of the present invention configured as described above will be described. When the change lever is in neutral, as shown in FIG. 4, the valves A and B are turned on, that is, air is sent from the air tank 11 to the chambers A and B. Therefore, the pressures in the A chamber and the B chamber are the same, so that the piston 13 does not move and the transmission is kept in the neutral state.

Next, when the change lever is shifted from the neutral "N" to another transmission at time t1, the valve B is turned off. Therefore, the air in chamber B is discharged through valve B,
Since the valve S is still closed, it is not completely discharged. Therefore, by reducing the internal pressure difference between the A chamber and the B chamber, the piston 13 starts to move in the arrow C direction with a small operating force. Therefore, the sleeve 21 in the transmission in which the piston 13 is interlocked abuts the synchro ring 22,
The contact shock is reduced to reduce the shock at the start of gear shifting. Then, as shown at time t2, the piston 13
If the stroke exceeds the neutral NE region, the signal from the gear shift unit deviates from the NE indicating neutral. Then, the valve S is turned on after the set time T seconds from the time t2. That is, the air in the B room is released to the atmosphere. Therefore, the air is introduced into the chamber A and the air is released from the chamber B to the atmosphere through the valves B and S. Therefore, since the air is introduced into the chamber A and the air is discharged from the chamber B to the atmosphere through the valve B and the valve S, the operating force acting on the sleeve interlocking with the piston 13 of the air cylinder 12 becomes large. As shown in FIG. 5 (B), the sleeve 21 pushes the synchro ring 22 away and contacts the gear 23. This contacting state is at time t3 in FIG. Further, with the passage of time, the operating force acting on the sleeve 21 increases, and the sleeve 21 comes into mesh with the gear 23 as shown in FIG. . This time is time t4 in FIG. In this way, the gear is shifted.

[Advantages of the Invention] As described in detail above, according to the present invention, it is possible to provide a finger touch control transmission shift operation control device capable of reducing shock when gears are engaged.

[Brief description of drawings]

FIG. 1 is a diagram showing a finger touch control transmission shift operation control device according to an embodiment of the present invention, FIG. 2 is a diagram showing shift operation force, FIG. 3 is a diagram showing stroke of an air cylinder, and FIG. FIG. 5 is a timing diagram for explaining the operation, and FIG. 5 is a diagram for explaining the shift operation. 11 …… air tank, 12 …… air cylinder, 13 …… piston, 21 …… sleeve, 22 …… synchro ring, 23 …… gear.

 ─────────────────────────────────────────────────── ─── Continuation of the front page (72) Masaaki Nakata Creator Masaaki Nakata 5-3-8 Shiba, Minato-ku, Tokyo Mitsubishi Motors Corporation (56) References JP-A-60-95242 (JP, A)

Claims (1)

[Scope of utility model registration request] 1. An air cylinder which is operated by an air pressure from an air pressure supply source and is separated from a first chamber and a second chamber by a piston connected to a transmission mechanism of a transmission, and the above-mentioned air chamber for the first chamber. First valve means for controlling supply of air pressure and discharge of air pressure from the first chamber, and control of supply of the air pressure to the second chamber and discharge of air pressure from the second chamber. It is provided with a second valve means and a third valve means for opening and closing a discharge path of the air pressure discharged through the first valve means and the second valve means, and the change lever is in the neutral position. When the above first
The second valve means and the second valve means are brought into an air pressure supply state, the third valve means is closed, and the first valve means or the above-mentioned first valve means is operated in response to a change operation of the change lever from the neutral position. A finger touch characterized in that the second valve means is put into an air pressure discharge state, and when the sleeve in the transmission interlocking with the piston comes out of contact with the synchro ring, the third valve means is controlled to open. Control transmission shift operation control device.