JPH116559A - Emergency transmission control device - Google Patents

Abstract

(57) [Summary] [Problem] With the current number of contacts for one rotary switch,
In other words, a single operation knob can be used to switch between forward and reverse gear shifts, thereby improving operability, reducing manufacturing costs, and saving space. SOLUTION: "OFF (general traveling) -2", "2-
Switching of the operation knobs 16-1a to "3", "3-4", "4-5", and "OFF-R" is a two-stage operation, a first stage generates a gear disengagement signal, and a second stage Generate select signal + shift signal. As a result, the number of contacts at “OFF to 2” and “3 to 4”, which have conventionally been three-stage operation, can be floated, and only the number of contacts of the rotary switch 16-1, ie, only the operation knob 16-1a Thus, the shift can be switched between forward and reverse.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an emergency shift control device suitable for use in a finger control transmission system.

[0002]

2. Description of the Related Art In a motor vehicle, especially a large route bus, starting and stopping are frequently performed, and a shift operation is repeated a considerable number of times during driving. The shift operation is performed by a change lever in the driver's seat. A long rod is used to connect a distance of about 10 m from the change lever to the transmission at the rear of the vehicle body, and the shift speed of the transmission is switched via the rod. For this reason, both the operation force and the stroke of the change lever are large, which causes driver fatigue.

Therefore, in recent years, instead of connecting the change lever and the transmission with a rod, the change lever unit and the control box are connected by electric wiring, and the change lever is connected to the control box according to the operation of the change lever by the change lever unit. A finger control transmission system (hereinafter referred to as a finger control transmission system) that transmits a position signal, generates a shift control signal in a control box, and sends the generated shift control signal to a gear shift unit to switch a transmission gear. Hereinafter, referred to as FCT).

In this FCT, a shift control signal is generated based on a change lever position signal from a change lever unit, and the generated shift control signal is sent from a control box to a gear shift unit. And
By the shift control signal, the solenoid valves attached to the select cylinder and the shift cylinder in the gear shift unit are selectively driven, the supply state of the compressed air from the air tank is switched, and the piston position in the cylinder is switched. Then, the shift fork of the selection operation unit moves, and the shift speed of the transmission is switched. If this FCT is used, the speed change operation is replaced with the electric pneumatic control mechanism from the mechanical remote control mechanism, and the operating force and the shift stroke can be greatly reduced, and the driving fatigue can be reduced.

In this type of FCT, a gear shift unit is directly driven to operate a transmission by assuming a case where a gear cannot be shifted even if a change lever is operated due to an abnormality of an electric signal system such as a change lever unit, a control box, and wiring. An emergency shift control device (emergency switch box) that enables the switching of the shift speed is provided. The emergency switch box is provided with a forward rotary switch and a reverse rotary switch on the front surface thereof, and both rotary switches are normally in the OFF position.

FIG. 9 is a front view of the emergency switch box. In the figure, 1-1 is a rotary switch for moving forward, 1-2 is a rotary switch for moving backward,
1-1a is an operation knob for forward movement, and 1-2a is an operation knob for backward movement. For example, the operation knob 1-1a in an emergency
Is rotated one step clockwise from the OFF position, the emergency switch box 1 sends a control stop signal for preventing transmission of a shift control signal from the control box, and a shift control signal () corresponding to an arbitrary neutral position. Gear release signal). This gear disengagement signal is supplied to the gear shift unit instead of the shift control signal from the control box.

The operation knob 1-1a is further moved clockwise by 1
When the gear is rotated one step, a shift control signal (select signal) corresponding to the position “N2” (see FIG. 3) is generated, and when the gear is further rotated one step, a gear shift control signal (shift signal) corresponding to the position “2” is generated. Generate. The electromagnetic valve in the gear shift unit is selectively driven by a shift control signal (gear release signal → select signal → shift signal) from the emergency switch box 1, and the transmission shift stage is set to the forward two-stage position. As a result, a second start can be made without using the change lever unit. Hereinafter, similarly, the knob 1-1a
By rotating the gear in the clockwise direction, the transmission can be switched to the forward, third, fourth, and fifth gear positions. However, from position "2"
When switching to "3" and switching to positions "4" to "5", the shift control signal from the emergency switch box 1 is changed from a gear release signal to a shift signal. By operating the operation knob 1-2a, the operation knob 1
As in the case of -1a, it is possible to retreat without using the change lever unit.

[0008]

However, in such a conventional emergency switch box 1,
It requires two rotary switches 1-1 and 1-2,
Cost increases are inevitable. In addition, a large installation space is required, and the size becomes large. In the case of the forward side, the operation knob 1-1a must be operated, and in the case of the reverse side, the operation knob 1-2a must be operated.
“OFF to 2” and “3 to 4” are three-stage operations of a gear release signal → select signal → shift signal, resulting in poor operability (complex operation). In the conventional emergency switch box 1, if the number of contacts of the rotary switch 1-1 is increased, the rotary switch 1-2 can be omitted and the operation knob can be reduced to one. It is difficult to further increase the score,
Rotary switch 1-1 and rotary switch 1-2
I have to separate it.

The present invention has been made in order to solve such a problem, and an object of the present invention is to use only one contact point of a current rotary switch, that is, an operation knob.
Accordingly, it is an object of the present invention to provide an emergency shift control device that enables shifting between forward and reverse gears, improves operability, reduces manufacturing costs, and promotes space saving.

[0010]

In order to achieve the above object, a first invention (an invention according to claim 1) is to change a rotary switch from a first rotation angle position to a second rotation angle position. A gear disengagement signal is generated according to the switching operation, and the second
In response to the switching operation from the rotation angle position to the third rotation angle position, a select signal and a shift signal subsequent to the select signal are generated. According to this invention, for example, the operation knob of the rotary switch is
When the gear is rotated one step clockwise from the F position, a gear release signal is generated. When the gear is further rotated clockwise another step, a select signal + shift signal is generated. That is, the shift stage can be switched to the position “2” by the two-stage operation, and one contact point between them can be floated. By applying this to “2-3”, “3-4”, and “4-5”, it is possible to switch between the gears by a two-step operation, and thereby the floating contact can be turned “OFF”. ~
R ".

A second invention (an invention according to claim 2) is characterized in that a rotary switch is operated in accordance with a switching operation from a first rotation angle position to a second rotation angle position, and a third rotation angle position is changed from a second rotation angle position to a third rotation angle position. A first timer means for starting a timekeeping operation after switching to the second rotation angle position and after switching to the third rotation angle position in response to the switching operation to the rotation angle position, and a second switch of the rotary switch. Third from rotation angle position
A second timer means for starting a timing operation having a shorter time-up time than the first timer means after switching to the third rotation angle position in response to the switching operation to the third rotation angle position; After the switching to the third rotation angle position, the first timer means generates a gear release signal while the timer operation is being performed, and after the switching to the third rotation angle position, the first and second timer means perform the gear release signal. A select signal is generated while both are performing a timekeeping operation, and a shift signal is generated while only the first timer means is performing a timekeeping operation after switching to the third rotational angle position. It is.

According to the present invention, for example, when the operation knob of the rotary switch is rotated one step clockwise from the OFF position, the time counting operation of the first timer means is started, and the gear release signal is generated. When the operation knob is further rotated clockwise by another stage, the first timer means and the second timer means
Of the timer means is started, and a select signal is generated. Then, when the time counting operation of the second timer means is up and the time counting operation of only the first timer means is performed, a shift signal is generated. That is, it is possible to switch the gear position to the position “2” by two-stage operation,
One contact between them can be floated. This is called "2-
By applying to "3", "3-4", and "4-5", it is possible to perform switching of each gear by a two-step operation, so that the floating contact can be used in "OFF-R". It can be assigned as a contact point.

[0013]

DESCRIPTION OF THE PREFERRED EMBODIMENTS Hereinafter, the present invention will be described in detail based on embodiments. FIG. 2 shows an FC according to the present invention.
FIG. 1 is a system configuration diagram illustrating an example of a T (finger control transmission system). In the figure, 10 is a CLU (change lever unit), 11 is an ECU (control box), 12 is a GSU (gear shift unit), 13 is a transmission, 14 is an engine, 15 is an air tank, 16 is EMS (emergency switch box), 17 is a clutch pedal,
S1 is a first clutch switch for detecting the start of depression of the clutch pedal 17, S2 is a second clutch switch for detecting completion of depression of the clutch pedal 17, 18 is a three-way solenoid valve, and 19 is a reducing valve for reducing pressure. ,
Reference numeral 20 denotes a display unit.

As shown in FIG. 3, the CLU 10 operates the change lever 10-1 to change its speed change pattern to five forward speeds ("1", "2", "3", "4", "4").
"5"), one step backward ("R"), neutral ("N
1), "N2", and "N3"). That is, if the change lever 10-1 is at the “N1” position, the sensors SiB, Se attached to the CLU 10
When A is turned on, a change lever position signal G indicating the position “N1” is sent to the ECU 11. When the change lever 10-1 is moved from the position "N1" to the position "N2" or "N3" in the select direction, the sensors SeB and SeC are turned on, and the positions "N2" and "N2" are turned on.
The change lever position signal G indicating "N3" is
Sent to If the change lever 10-1 is moved in the shift direction from the position "N3" to the position "5", the sensor SiC is turned on, so that the change lever position signal G indicating the position "5" is output from the ECU 11
Sent to FIG. 4 shows the correspondence between the positions of the change lever 10-1 and the operating states (ON states) of the sensors SiA to SiC and SeA to SeC.

The ECU 11 determines the rotational state N of the engine 14.
e and the vehicle speed V as inputs, and based on the change lever position signal G from the CLU 10, the engine rotation state Ne and the vehicle speed V
The shift control signal S is generated in consideration of the information of the shift control signal S, and the generated shift control signal S is sent to the GSU 12. The ECU 1
1 indicates that the change lever position signal G indicates the position "N
If it is a signal (neutral signal) indicating "1", "N2", or "N3", a drive signal is sent to the three-way solenoid valve 18 and the compressed air from the air tank 15 is sent to the CLU 10. The compressed air passing through the three-way solenoid valve 18 causes the CLU 10
, A reaction force against the change lever 10-1 is generated.

The GSU 12 receives a shift control signal S from the ECU 11 and switches the shift speed of the transmission 13. FIG. 5 is a diagram showing a main configuration of the GSU 12. In the figure, 4-1 is a shift cylinder, 4-2 is a select cylinder, and 4-3 is a selection operation section. The shift cylinder 4-1 is provided with solenoid valves MVA and MVB,
The select cylinder 4-2 is provided with solenoid valves MVC and MVD. The shift control signal S from the ECU 11 is given to the solenoid valves MVA to MVD. By the shift control signal S, the solenoid valves MVA to MVD are selectively driven, the state of supply of compressed air from the air tank 15 is switched, and the piston 4-12 in the shift cylinder 4-1 and the select cylinder 4-2 is switched. , 4-22 are switched, the shift fork (not shown) in the selection operation section 4-3 moves, and the gear position of the transmission 13 is switched. FIG. 4 shows the correspondence between the positions of the change lever 10-1 and the driving states (ON states) of the solenoid valves MVA to MVD.

The shift cylinder 4-1 and the select cylinder 4-2 have sensors SiA 'to SiC' and SeA 'to Se for detecting the positions of the pistons 4-12 and 4-22.
C 'is arranged. This sensor SiA '~ Si
The detection status of the piston positions C ′, SeA ′ to SeC ′ is provided to the ECU 11 as a gear position detection signal GP.
The ECU 11 compares the gear position detection signal GP with the change lever position signal G, and if the position shifted by the change lever 10-1 matches the actually switched gear position, the ECU 11 sends the signal to the three-way solenoid valve 18. A drive stop signal (shift completion feedback signal) is sent to shut off the supply of compressed air from the air tank 15 to the CLU 10. Thereby, the reaction force against the change lever 10-1 disappears, and it is possible to realize that the shift operation to the desired position is completed. Note that the gear position detection signal GP from the GSU 12 is also supplied to the display unit 20. As a result, the current gear position is displayed on the display unit 20.

The EMS 16 includes a CLU 10, an ECU 11,
Change lever 10- due to abnormality of electric signal system such as wiring
1 is an emergency shift control device that enables the GSU 12 to be driven directly to switch the shift speed of the transmission 13 when shifting is not possible even by operating the transmission 1. This EMS1
6 has only one rotary switch 16-1, as shown in the front view of FIG. Reference numeral 16-1a denotes an operation knob of the rotary switch 16-1. The rotary switch 16-1 is used for both forward and backward movements. Normally, the operation knob 16-1a is set to the general traveling position (OFF position). The position is the position "3", the six-step operation position is the operation position corresponding to the position "4", the eight-step operation position is the operation position corresponding to the position "5", and the two-step operation position in the counterclockwise direction corresponds to the position "R". Operation position.

When the operation knob 16-1a is rotated one step clockwise from the OFF position, that is, when the operation knob 16-1a is at a one-step operation position clockwise (point t1 shown in FIG. 6A), EM
In step S16, a control stop signal E for preventing the transmission of the shift control signal S from the ECU 11 is transmitted, and a first stop signal E described later is transmitted.
The timer A starts counting (t1 shown in FIG. 6B).
Point), while the timer A is performing its timing operation, a shift control signal (gear disengagement signal) S 'corresponding to an arbitrary neutral position is generated. This gear disengagement signal S ′ is provided to the GSU 12 instead of the shift control signal S. In response to the gear disengagement signal S ', the GSU 12 sets the solenoid valve MVA
And MVB are driven (point t1 shown in FIGS. 6E and 6F). Thereby, the transmission 13
Represents any neutral position (position "N1",
“N2” or “N3”). When the timing operation (10 sec) of the first timer A is completed (point t2 shown in FIG. 6A), the gear release signal S 'to the GSU 12 disappears, and the driving of the solenoid valves MVA and MVB is stopped. Accordingly, the transmission 13 maintains an arbitrary neutral position “N” in a state where the driving of the solenoid valves MVA to MVD in the GSU 12 is all stopped.

If the operation knob 16-1a is further rotated clockwise by one step, that is, if the operation knob 16-1a is in a two-step operation position in the clockwise direction (point t4 shown in FIG. 6A), the EMS 16
Starts the timing operation of the first timer A described above and the second timer B described later (FIGS. 6B and 6C,
(T4 point shown in (d)), while the timer A and the timer B are both performing their timing operations, the position “N2”
A shift control signal (select signal) S ′ corresponding to the above is generated. This select signal S 'is applied to GSU12.
In response to the select signal S ′, the GSU 12 drives the solenoid valves MVA to MVD (points t4 shown in FIGS. 6E to 6H). Thereby, the transmission 13
Is set to the neutral position “N2”.

Timing operation of second timer B (0.5 sec)
Is completed (point t5 shown in FIGS. 6C and 6D),
The MS 16 generates a shift control signal (shift signal) S ′ corresponding to the position “2” instead of the select signal S ′. This shift signal S 'is provided to GSU12.
In response to the shift signal S ′, the GSU 12 stops driving the solenoid valve MVA (t5 shown in FIG. 6E).
point). Thereby, the transmission 13 is set to the position "2", that is, the two-stage position on the forward side. When the timing operation (10 sec) of the first timer A is completed (FIG. 6)
(T6 point shown in (b)), the shift signal S ′ to the GSU 12
Disappears, and the driving of the solenoid valves MVB to MVD is stopped.
As a result, the transmission 13 maintains the forward two-stage position in a state where the driving of the solenoid valves MVA to MVD in the GSU 12 is all stopped.

Hereinafter, similarly, "2-3" and "3-3"
Operation knob 16 for "4", "4-5", "OFF-R"
At the time of the switching of −1a, a gear release signal is generated at the first stage, a select signal + a shift signal is generated at the second stage, and the switching of each speed stage of the transmission 13 is performed by two-stage operation.

As can be seen from the above description, in this embodiment, "OFF to 2", which has conventionally been a three-step operation,
By assigning the two contacts floated in “3 to 4” as the use contacts in “OFF to R”, the number of contacts of only the rotary switch 16-1, that is, the operation knob 16
Only -1a can change the speed between forward and reverse, thereby improving operability, reducing manufacturing costs, and saving space. Further, in this embodiment, when the gear is switched by the operation knob 16-1a, the gear disengagement signal is generated at the position rotated by one stage, so that the gear disengagement for avoiding danger in an immediate case is easy. Become.

In FIG. 6, for clarity of explanation,
A time chart when the operation knob 16-1a is slowly rotated is shown. Actually, the operation knob 16-1a is not rotated so slowly, and the operation knob 16-1a rotates to the next operation stage position before the timing operation of the first timer A times out. FIG. 7 illustrates a time chart in this case. In this example, the target shift speed is set to the forward three-stage position, and the operation knob 16-1a is quickly rotated to the forward three-stage position.

In this case, the operation knob 16-1a is turned off.
It is rotated clockwise from the position, and quickly passes through the one-stage operation position → the two-stage operation position → the three-stage operation position to become the four-stage operation position. Here, the operation knob 16-1a is turned off.
When the position is set to the one-step operation position from the position (point t1 shown in FIG. 7A), the timer operation of the first timer A is started (point t1 shown in FIG. 7B). While the first timer A is performing its timing operation, any neutral position “N”
Is generated in accordance with the gear shift signal. During the generation of the gear disengagement signal S ', the operation knob 16-1a is switched from the one-step operation position to the two-step operation position. Therefore, before the time of the first timer A expires, the time counting operation thereof is forcibly interrupted (point t2 shown in FIG. 7B),
The gear release signal disappears.

When the operation knob 16-1a is set to the two-step operation position (point t3 shown in FIG. 7A), the first timer A
And the timer operation of the second timer B is started (FIG. 7
(T3 points shown in (b), (c), and (d)), while both timer A and timer B are performing their timing operations, a select signal S 'corresponding to the position "N2" is generated.

Timing operation of second timer B (0.5 sec)
Is completed (point t4 shown in FIGS. 7C and 7D), a shift signal S 'corresponding to the position "2" is generated instead of the select signal S'. During the generation of the shift signal S ', the operation knob 16-1a is switched from the two-stage operation position to the three-stage operation position. Therefore, before the first timer A times out, its timekeeping operation is forcibly interrupted (point t5 shown in FIG. 7B), and the shift signal S 'disappears.

When the operation knob 16-1a is set to the three-stage operation position (point t6 shown in FIG. 7A), the first timer A
Is started (point t6 shown in FIG. 7B).
While the first timer A is performing its timing operation, the gear disengagement signal S 'corresponding to an arbitrary neutral position "N" is provided.
Is generated. During the generation of the gear disengagement signal S ', the operation knob 16-1a is switched from the three-stage operation position to the four-stage operation position. Therefore, before the time of the first timer A expires, the time counting operation thereof is forcibly interrupted (point t7 shown in FIG. 7B), and the gear disengagement signal disappears.

When the operation knob 16-1a is set to the four-stage operation position (point t8 shown in FIG. 7A), the first timer A
And the timer operation of the second timer B is started (FIG. 7).
(T8 points shown in (b), (c), and (d)), while the timer A and the timer B are both performing their timing operations, the select signal S 'corresponding to the position "N2" is generated.

Timing operation of second timer B (0.5 sec)
Is completed (point t9 shown in FIGS. 7C and 7D), a shift signal S 'corresponding to the position "3" is generated instead of the select signal S'. Since this four-stage operation position is the target forward three-stage position, the operation knob 16-1a remains at this position. Therefore, the first timer A performs its timing operation to the end. Then, the first timer A
After the end of the timing operation (point t10 shown in FIG. 7A), the shift signal disappears.

FIG. 8 is a circuit diagram of the EMS 16 described above. The EMS 16 includes a rotary switch 16-1 and
The first timer A 16-2, the second timer B 16-3, and the NAND gate circuit 1 for selection
6-4, a D-FF circuit 16-5, a NAND gate circuit 16-6 for shifting, and a diode logic 16-7
, Power transistor circuit 16-8, and diode D
1 to D11 and transistors TrTMA and TrTMB
, Resistors R1 to R11, capacitors C1 and C2, and a NAND gate NAND1.

In the EMS 16, the rotary switch 1
When 6-1 is rotated clockwise from the OFF position and is set to the one-stage operation position "N", an "H" level signal is output from the one-stage operation position "N" and the transistor TrTM
A is turned on, and the signal level to the input terminal 1A of the timer A 16-2 falls, whereby the timer A
The clocking operation at -2 starts, and an "H" level signal is output from the 1Q terminal for a time determined by the time constant of the resistor R7 and the capacitor C2. Rotary switch 1
The “H” level signal from the one-stage operation position “N” of 6-1 and the “H” level signal from the 1Q terminal of the timer A · 16-2 are applied to the NAND gate NAND1. In response, NAND gate NAND1 outputs an "L" level signal. As a result, the transistor TrA in the power transistor circuit 16-8 is connected via the diode logic 16-7 connected to the subsequent stage of the NAND gate NAND1.
And TrB are turned on and the solenoid valve M connected thereto
VA and MVB are activated, and the GSU 12 performs a gear release operation.

Normally, the time required to complete gear disengagement from a gear engaged state and become gear neutral is 0.5 sec.
c or less, and after the timer time (10 sec) set in timer A 16-2 to avoid continuous energization of the solenoid valve,
An “L” level signal is output from the 1Q terminal, the output of the NAND gate NAND1 is set to “H” level, the transistors TrA and TrB are turned off, and the solenoid valves MVA and MVA are turned off.
Stop operation of VB.

When the rotary switch 16-1 is further rotated clockwise to a two-stage operation position "2", an "H" level signal is output from the two-stage operation position "2".
The transistor TrTMB is turned on, and the timer B · 16
-3, the signal level to the input terminal 2A falls, whereby the timer B 16-3 starts the timing operation,
An "H" level signal is output from the 2Q terminal for a time determined by the time constant of the resistor R6 and the capacitor C1. Two-stage operation position "2" of the rotary switch 16-1
"H" level signal from timer and 2Q of timer B16-3
The “H” level signal from the terminal is supplied to the NAND gate circuit 16.
-4 NAND gate NAND2-4. In response, NAND gates NAND2-4 output an "L" level signal. Thereby, the NAND gate NAND2
-4, the transistors TrA, TrB, TrC and TrD in the power transistor circuit 16-8 are turned on via the diode logic 16-7 connected thereto, and the solenoid valves MVA, MVB, MVC connected thereto are turned on. And MVD are activated, the GSU 12 performs a select operation on the neutral line, and moves to the position “N2”.

Usually, the time required for the select movement is 0.1 se.
c After that, after the timer time set in timer B 16-3 (0.5 sec) to ensure the movement to the target select position, an "L" level signal is output from the 2Q terminal. Then, the outputs of the NAND gates NAND2-4 are set to the "H" level to prepare for the next shift movement.

On the other hand, the "H" level signal from the clockwise two-stage operation position "2" of the rotary switch 16-1 is supplied to the D flip-flop D-FF of the D-FF circuit 16-5.
It is also provided to the input terminal 4D of the FF-4. The signal at the 2Q bar terminal falls to the “L” level by the operation of the timer B · 16-3, but rises to the “H” level after the timer set time (0.5 seconds), and the D flip-flop / D -Applied as a trigger to the CK (clock) terminal of FF-4. As a result, the 4Q terminal of the D flip-flop / D-FF-4 becomes "H" level equal to the level of the 4D terminal, and the NAND gate circuit 16-6
To one end of the NAND gate NAND3-4.

To the other end of the NAND gate NAND3-4,
An "H" level signal is supplied from the 1Q terminal of the timer A 16-2. Thereby, the NAND gate NAND
An “L” level signal is output from 3-4, and through the diode logic 16-7 connected to the subsequent stage of the NAND gate NAND3-4, the transistors TrA, TrB, TrC and TrD that have been turned on until then are output. The transistor TrA is turned off, the operation of the solenoid valve MVA stops, and the GSU 12 performs a shift operation on the position “N2” and moves to the position “2”.

Normally, the time required to complete the gear engagement from the neutral state is 1 second or less, and after the timer time (10 seconds) set in the timer A 16-2 in order to avoid continuous energization of the solenoid valve, 1Q An "L" level signal is output from the terminal, the output of the NAND gate NAND3-4 is set to "H" level, the transistors TrB, TrC and TrD are turned off, and the solenoid valves MVB, MVC and MV are turned off.
The operation of D is stopped.

[0039]

As is apparent from the above description, according to the present invention, a gear disengagement signal is generated in accordance with the switching operation of the rotary switch from the first rotation angle position to the second rotation angle position, In response to the switching operation from the second rotation angle position to the third rotation angle position, a select signal and a shift signal subsequent to the select signal are generated, and each gear can be switched by a two-step operation. With the number of contacts of one rotary switch, that is, with one operation knob, it is possible to switch between forward and reverse gear shifts, thereby improving operability, reducing manufacturing costs, and saving space. Become like

[Brief description of the drawings]

FIG. 1 is a front view of an EMS (emergency switch box) in an FCT (finger control transmission system).

FIG. 2 is a system configuration diagram showing an example of an FCT to which the present invention is applied.

FIG. 3 is a diagram showing a shift pattern in a CLU (change lever unit) in FCT.

FIG. 4 is a diagram showing a correspondence relationship between a position of a change lever in a CLU and an operation state of each sensor, and a correspondence relationship between an operation state of each solenoid valve in a GSU (gear shift unit).

FIG. 5 is a diagram showing a main part of a GSU in FCT.

FIG. 6 is an EM when the operation knob is slowly rotated.
5 is a time chart for explaining the operation of S.

FIG. 7 is a time chart for explaining the operation of the EMS when the operation knob is quickly rotated with the target gear position set to the forward three-stage position.

FIG. 8 is a circuit configuration diagram of an EMS.

FIG. 9 is a front view of a conventional EMS.

[Explanation of symbols]

10 ... CLU (change lever unit), 11 ... EC
U (control box), 12 ... GSU (gear shift unit), 16 ... EMS (emergency switch box), 16-1 ... rotary switch, 16-1
a ... operation knob, 16-2 first timer A, 16-3
... second timer B, 16-4 ... NAND gate circuit for selection, 16-5 ... D-FF circuit, 16-6 ... NAND gate circuit for shift, 16-7 ... diode logic,
16-8: Power transistor circuit.

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[Procedure amendment]

[Submission date] July 8, 1997

[Procedure amendment 1]

[Document name to be amended] Drawing

[Correction target item name] Fig. 8

[Correction method] Change

[Correction contents]

FIG. 8

Claims (2)

[Claims] 1. A rotary switch operated in an emergency, and a second rotation angle position of the rotary switch
A gear disengagement signal is generated in accordance with the switching operation to the third rotation angle position, and a select signal and a shift signal subsequent to the select signal are generated in response to the switching operation from the second rotation angle position to the third rotation angle position. And a shift control signal generating means for generating the shift control signal. 2. A rotary switch operated in an emergency, and a second rotation angle position of the rotary switch from a first rotation angle position.
After the switching to the second rotation angle position and to the third rotation angle position in accordance with the switching operation to the second rotation angle position and the switching operation from the second rotation angle position to the third rotation angle position. First timer means for starting the timekeeping operation after switching of the rotary switch;
A second timer means for starting a timing operation having a shorter time-up time than the first timer means after switching to the third rotation angle position in response to the switching operation to the third rotation angle position; After the switching to the third rotation angle position, a gear disengagement signal is generated while the first timer means is performing the timekeeping operation, and after the switching to the third rotation angle position, the first and second rotation angle positions are generated. A select signal is generated while both the timer means are performing a timekeeping operation, and a shift signal is generated while only the first timer means is performing a timekeeping operation after switching to the third rotational angle position. An emergency shift control device, comprising: