JP3460928B2 - Emergency transmission control - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION [0001] BACKGROUND OF THE INVENTION 1. Field of the Invention
Suitable for use in roll transmission systems
The present invention relates to an emergency shift control device. [0002] 2. Description of the Related Art Automobiles, especially large route buses
Starts and stops frequently, and a considerable number of times during driving
The speed change operation is repeated. This shifting operation is
It is performed with a change lever, and this change lever
There is a distance of about 10m to the rear transmission
Connect with a long rod, and transmit
The gear position of the application is being changed. Because of this, change
The lever operating force and stroke are both large, and the driver is tired.
It is a cause of labor. Therefore, in recent years, change levers and transformers
Instead of connecting the mission with a rod, change lever
-Unit and control box are connected by electric wiring
Change lever operation with the change lever unit
Change lever position signal in control box according to
No signal is sent and the control box controls the speed
Control signal, and the generated shift control signal
Transmission unit to change the transmission.
Finger control to change gears
The transmission system (hereinafter referred to as FCT)
Has been adopted. In this FCT, a change lever unit is used.
Transmission control signal based on the change lever position signal from
Generated and the generated shift control signal is controlled
It is sent from the box to the gear shift unit. And
This shift control signal causes the gear shift unit to
Select cylinder and shift cylinder
Solenoid valve is selectively driven, compressed air from air tank
The supply status of the cylinder is switched, and the piston
Position is switched, and the shift fork of the selection
Moves and the transmission gear is changed.
You. If this FCT is used, the speed change operation is performed by mechanical remote control.
Mechanism is replaced with an electric pneumatic control mechanism.
And shift stroke are greatly reduced, reducing driving fatigue.
Can be [0005] This type of FCT includes a change lever unit.
Differences in electrical signal systems such as
The gear can be shifted even if you always operate the change lever.
Drive the gearshift unit directly
To change transmission gears
Emergency transmission control unit (emergency switch box
S) is provided. This emergency switch
The box has a rotary switch on the front
There is a rotary switch for retreat and it is usually
All rotary switches are in the OFF position. FIG. 9 shows an emergency switch box.
FIG. In the figure, 1-1 is a forward row.
Tally switch, 1-2 are rotary switches for retreat,
1-1a is an operation knob for forward movement, and 1-2a is an operation knob for backward movement.
It is a work knob. For example, the operation knob 1-1a in an emergency
When the is turned one step clockwise from the OFF position,
Gency switch box 1 is a control box
Control stop signal to prevent transmission of transmission control signals from
Sending out and shifting according to any neutral position
Generate a control signal (gear removal signal). This gear removal signal
The signal is replaced by the shift control signal from the control box.
To the gearshift unit. The operation knob 1-1a is further moved clockwise by 1
When the gear is rotated stepwise, it responds to position "N2" (see Fig. 3).
Generated the same shift control signal (select signal)
When rotated, a shift control signal corresponding to position "2"
(Shift signal). This Emergency Sui
Transmission control signal from gearbox 1 (gear release signal →
(Rect signal → shift signal), the gear shift unit
The solenoid valve in the
The gear position of the vehicle is set to the forward two-stage position. By this
Second start without using the change lever unit
can do. Hereinafter, similarly, the knob 1-1a
By rotating the clockwise,
Shift gears to 3, 4, and 5 forward positions
Can be switched. However, from position "2"
Switch to “3”, switch to position “4” to “5”
When switching, use the emergency switch box
The shift control signal from 1 is a gear release signal → a shift signal.
It is. By operating the operation knob 1-2a, the operation knob 1
-1a, the change lever unit is
It can be retracted without using it. [0008] However, this is not the case.
In a conventional emergency switch box 1,
It requires two rotary switches 1-1 and 1-2,
Cost increases are inevitable. Also, large installation space
Requires a large size. On the forward side
The operation knob 1-1a on the reverse side, and the operation knob on the reverse side.
1-2a must be operated, "OFF-R",
"OFF to 2" and "3 to 4" are gear release signals → select
The signal becomes a three-step operation from the signal to the shift signal, which makes operation difficult.
(Operation is troublesome). The conventional emergency switch
In the first box 1, the connection of the rotary switch 1-1 is
If you increase the score, omit the rotary switch 1-2
The operation knob can be one, but the rotary knob
It is difficult to further increase the number of contacts of the switch 1-1,
Rotary switch 1-1 and rotary switch 1-2
I have to separate it. The present invention has been developed to solve such a problem.
The purpose of this is to
The number of contacts of one tally switch, that is, the operation knob 1
Can switch between forward and reverse gear shifts
To improve operability, reduce manufacturing costs, and save space.
To provide an emergency shift control device that can be facilitated.
And there. [0010] Means for Solving the Problems To achieve such an object
In order toThe present invention relates to a first rotation angle of a rotary switch.
In accordance with the switching operation from the degree position to the second rotation angle position.
From the second rotation angle position to the third rotation angle position
According to the operation, after switching to the second rotation angle position and
After switching to the third rotation angle position, the timing operation is opened.
A first timer means for starting and a second
For switching from the first rotation angle position to the third rotation angle position
The first tie after switching to the third rotational angle position.
Start timing operation with a shorter time-up time than
A second rotation angle position.
After the switch to, the first timer means
During the operation, a gear release signal is generated, and a third rotation angle is generated.
First and second timer hands after switching to the position
Generate select signal while both stages are timing
After switching to the third rotation angle position,
Shift signal while only the timer means is performing timekeeping operation
Is generated. [0011] According to the present invention, for example, a rotary switch
Turn the control knob one step clockwise from the OFF position
Then, the time counting operation of the first timer means is started, and
A gap signal is generated. Turn the control knob further clockwise
When the first timer means and the second
Of the timer means starts, and the select signal is generated.
Is done. Then, the timing operation of the second timer means is
And the timer operation is performed only by the first timer.
Then, a shift signal is generated. That is, in a two-step operation
The shift stage can be switched to position "2",
One contact between them can be floated. This is called "2-
3 ”,“ 3-4 ”, and“ 4-5 ”.
Can be switched by two-stage operation
, And the floating contact becomes “OFF-R”
It can be assigned as a use contact point. [0013] DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS Hereinafter, the present invention will be described based on an embodiment.
Will be described in detail. FIG. 2 shows an FC according to the present invention.
T (Finger control transmission system)
FIG. 2 is a system configuration diagram illustrating an example of a system. Smell
10 is CLU (change lever unit), 11 is
ECU (control box), 12 is GSU (gear)
Shift unit), 13 is a transmission, 14 is
Engine, 15 for air tank, 16 for EMS
Switch box), 17 is the clutch pedal,
S1 is a first step for detecting the start of depression of the clutch pedal 17.
1 is the clutch switch, and S2 is the depression of the clutch pedal 17.
The second clutch switch 18 for detecting the completion of
A three-way solenoid valve, 19 is a reducing valve for reducing pressure,
Reference numeral 20 denotes a display unit. FIG. 3 shows the shift pattern of the CLU 10.
As shown, operating the change lever 10-1
Therefore, five forward steps (“1”, “2”, “3”, “4”,
"5"), one step backward ("R"), neutral ("N
1), “N2”, “N3”).
An end lever position signal G is provided to the ECU 11. Sand
The change lever 10-1 is in the "N1" position.
If present, sensors SiB, Se attached to CLU10
When A is turned on, change signal indicating position "N1"
The bar position signal G is sent to the ECU 11. And positive
Change lever 10-1 from position "N1"
If you move in the select direction with “N2” and “N3”,
SeB and SeC are turned on, and the position “N2”,
The change lever position signal G indicating "N3" is
Sent to Also, change position from position "N3".
Move bar 10-1 in the shift direction to position "5".
Then, the sensor SiC is turned on,
The change lever position signal G indicating "5"
Sent to FIG. 4 shows the positions of the change lever 10-1.
Of sensors and sensors SiA to SiC, SeA to SeC
It shows the correspondence with the state (ON state). The ECU 11 determines the rotational state N of the engine 14.
e and vehicle speed V as input and change lever from CLU10
-Based on the position signal G, the engine rotation state Ne and the vehicle speed V
The shift control signal S is generated in consideration of the information of
The transmission 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
1 ”,“ N2 ”and“ N3 ”(neutral signal
), A drive signal is sent to the three-way solenoid valve 18 to
The compressed air from the tank 15 is sent to the CLU 10. this
The CLU 10 is compressed by the compressed air through the three-way solenoid valve 18.
Generates a reaction force against the change lever 10-1
I do. The GSU 12 controls a shift from the ECU 11.
Upon receiving the signal S, the gear position of the transmission 13 is switched off.
Replace. FIG. 5 is a diagram showing the main configuration of the GSU 12.
You. In the figure, 4-1 is a shift cylinder, and 4-2 is
The select cylinder 4-3 is a selection operation section. shift
The cylinders 4-1 are provided with solenoid valves MVA and MVB,
Solenoid valves MVC and MVD are attached to select cylinder 4-2.
Has been established. The shift control signal S from the ECU 11 is an electromagnetic
Provided to valves MVA-MVD. This shift control signal S
Therefore, the solenoid valves MVA to MVD are selectively driven, and
The supply status of the compressed air from the tank 15 is switched.
The shift cylinder 4-1 and the select cylinder 4-2
The positions of the pistons 4-12 and 4-22 are switched
The shift fork (shown in FIG.
) Moves, and the transmission 13 shifts.
Can be replaced. FIG. 4 shows the positions of the change lever 10-1.
And the drive state (ON state) of the solenoid valves MVA to MVD
Shows the corresponding relationship. The shift cylinder 4-1 and select series
The position of the pistons 4-12 and 4-22 is
SiA 'to SiC', SeA 'to Se for detecting
C 'is arranged. These sensors SiA 'to Si
The detection status of the piston positions of C ', SeA' to SeC '
It is provided to the ECU 11 as a gear position detection signal GP.
The ECU 11 receives the gear position detection signal GP and the change
Compare the bar position signal G with the change lever 10-1.
More shifted position and actually switched gear
Drive stop signal to the three-way solenoid valve 18
Signal (shift completion feedback signal)
Cut off the supply of compressed air from the compressor 15 to the CLU 10
You. Thus, the reaction force against the change lever 10-1
Disappears, indicating that the shift operation to the desired position has been completed.
You can feel it. The gear position from GSU12
The position detection signal GP is also given to the display unit 20.
Can be As a result, the display unit 20
The current gear position is displayed. The EMS 16 includes a CLU 10, an ECU 11,
Change lever 10- due to abnormality of electric signal system such as wiring
If gear shifting is not possible even by operating
Switch gears of transmission 13 by driving in contact
This is an emergency transmission control device that enables This EMS1
6 is the only rotary, as shown in its front view in FIG.
The switch 16-1 is provided. 16-1a is this row
This is an operation knob of the tally switch 16-1. Rotarys
Switch 16-1 is used for both forward and backward movements.
The knob 16-1a is set as the general traveling position (OFF position)
And two-stage operation position clockwise
"2", four-step operation position to position "3", six-step operation
Set the working position to position “4” and the 8-stage operation position
Operating position corresponding to the button “5” and two steps counterclockwise.
The floor operation position is the operation position corresponding to position "R".
ing. When the operation knob 16-1a is turned from the OFF position
One rotation in the counterclockwise direction, that is, one rotation in the clockwise direction
Assuming the floor operation position (point t1 shown in FIG. 6A), EM
In step S16, transmission of the shift control signal S from the ECU 11 is blocked.
A control stop signal E for stopping is transmitted, and a first
The timer A starts counting (t1 shown in FIG. 6B).
Point), while timer A is performing its timing operation,
Transmission control signal (gear disengagement) according to the neutral position
Signal S 'is generated. This gear release signal S 'is
It is supplied to the GSU 12 instead of the control signal S. This gear
In response to the disconnection signal S ', the GSU 12 sets the solenoid valve MVA
And MVB are driven (see FIGS. 6 (e) and 6 (f)).
Point t1 shown). Thereby, the transmission 13
Represents any neutral position (position "N1",
“N2” or “N3”). First timer
When the timing operation of A (10 sec) is completed (see FIG. 6A)
(Point t2 shown), the gear release signal S 'to the GSU 12 disappears
Then, the driving of the solenoid valves MVA and MVB is stopped. This
As a result, the driving of the solenoid valves MVA to MVD in the GSU 12
Transmission 13 is optional with all
Maintain the neutral position "N". Move the operation knob 16-1a further clockwise.
One-stage rotation, ie, two-stage operation clockwise
6 (point t4 shown in FIG. 6A), the EMS16
Is the first timer A described above and the second timer
The timing operation of the timer B is started (FIGS. 6B and 6C).
(T4 point shown in (d)), and the timer A and the timer B
Position "N2" while performing the timing operation
A shift control signal (select signal) S 'corresponding to the
You. This select signal S 'is applied to GSU12.
In response to the select signal S ', the GSU 12
The valves MVA to MVD are driven (see FIGS. 6E to 6H).
T4 point shown). 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 sets the position in place of the select signal S '.
Generate shift control signal (shift signal) S 'corresponding to "2"
I do. This shift signal S 'is provided to GSU12.
In response to the shift signal S ', the GSU 12 controls the solenoid valve.
The driving of the MVA is stopped (t5 shown in FIG.
point). As a result, the transmission 13
The position is set to the position "2", that is, the two-stage position on the forward side. First
When the timing operation (10 sec) of 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.
Thereby, the drive of the solenoid valves MVA to MVD in the GSU 12 is performed.
With all the motion stopped, the transmission 13
Maintain the forward two-stage position. Hereinafter, similarly, "2-3" and "3-3"
Operation knob 16 for "4", "4-5", "OFF-R"
-1a, a gear release signal is generated at the first stage.
The second stage generates a select signal and a shift signal.
Therefore, the transmission 13 can be completely changed
This is performed in a two-stage operation. As can be seen from the above description, the present embodiment
In the state, "OFF ~ 2", which was conventionally a three-step operation,
Two contacts floated at "3-4" in "OFF-R"
By assigning them as used contacts, the rotary switch
Switch 16-1 only, that is, the operation knob 16
-1a alone to change gears in forward and reverse
Operability, lower manufacturing costs
Reduction and space saving have been achieved. Also, this implementation
In the embodiment, the shift speed is switched by the operation knob 16-1a.
In this case, a gear release signal is generated at the position rotated one stage.
Gear removal to avoid danger in the case of
It will be easier. In FIG. 6, for clarity of explanation,
Tie when operating knob 16-1a is slowly rotated
Chart is shown. In fact, it turns so slowly
The first timer A counts down.
Before operation, the operation knob 16-1a moves to the next operation stage position.
Rotate to. Fig. 7 shows a time chart in this case.
I do. In this example, the target shift speed is set to the forward three-speed position.
Move the operation knob 16-1a to this forward three-step position.
It is spinning fast. In this case, the operation knob 16-1a is turned off.
Rotated clockwise from the position, 1 step operation position → 2 steps
Operation position → Three-step operation Quickly passing through the three-step operation position
Position. Here, the operation knob 16-1a is turned off.
When the position is set to the one-step operation position from the position (see FIG. 7A)
At time t1), the timer operation of the first timer A is started (FIG.
7 (b) point t1). This first timer A is
Time operation, any neutral position "N"
Is generated. Without this gear
During the generation of the signal S ', the operation knob 16-1a is operated by one step.
The position is switched to the two-stage operation position. others
Before the timer expires, the first timer A
The operation is forcibly interrupted (point t2 shown in FIG. 7B),
The gear release signal disappears. The operation knob 16-1a has two operation positions.
When this is done (point t3 shown in FIG. 7A), the first timer A
And the timer operation of the second timer B is started (FIG. 7
(B) and (t3 points shown in (c) and (d))
A and timer B are both performing their timing operations
During this time, the select signal S 'corresponding to the position "N2" is generated.
Is done. Timing operation of second timer B (0.5 sec)
Is completed (point t4 shown in FIGS. 7C and 7D).
Shift signal corresponding to position "2"
A signal S 'is generated. Generation of this shift signal S '
Middle, operation knob 16-1a is three steps from the two-step operation position
It can be switched to the operating position. Therefore, the first timer
A is forcibly stopped before the time is up.
(Point t5 shown in FIG. 7B), and the shift signal S '
Disappear. The operation knob 16-1a has three operation positions.
When this is done (point t6 shown in FIG. 7A), the first timer A
Is started (point t6 shown in FIG. 7B).
While this first timer A is performing its timing operation,
Gear release signal S 'corresponding to the desired neutral position "N"
Is generated. During the generation of the gear disengagement signal S ',
Knob 16-1a moves from the three-stage operation position to the four-stage operation position
Is switched. For this reason, the first timer A
Before the timer is up, its timing operation is forcibly interrupted (see
7 (b) point t7), the gear removal signal disappears. The operation knob 16-1a has four operation positions.
When this is done (point t8 shown in FIG. 7A), the first timer A
And the timer operation of the second timer B is started (FIG. 7).
(B) and (t8 points shown in (c) and (d))
A and timer B are both performing their timing operations
During this time, the select signal S 'corresponding to the position "N2" is generated.
Is done. Timing operation of second timer B (0.5 sec)
Is completed (point t9 shown in FIGS. 7 (c) and 7 (d)).
Shift signal corresponding to position "3"
A signal S 'is generated. This four-step operation position
Operation knob 16-1a
Stay in position. Therefore, the first timer A
Complete the timing operation. Then, the first timer A
After the end of the clocking operation (point t10 shown in FIG. 7A),
The shift signal disappears. FIG. 8 is a circuit diagram of the EMS 16 described above.
is there. The EMS 16 includes a rotary switch 16-1 and
The first timer A 16-2 described above and the second timer
Ima B 16-3 and select NAND gate circuit 1
6-4, D-FF circuit 16-5, and NAND for shift
Gate circuit 16-6 and 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
Turn 6-1 clockwise from the OFF position to operate one step
Assuming the position "N", from this one-step operation position "N"
An “H” level signal is output, and the transistor TrTM
A is turned on and goes to the input terminal 1A of timer A 16-2.
Signal level of the timer A.
-2 timer operation starts, and the resistor R7 and the capacitor
From the 1Q terminal, the time determined by the time constant with C2
An "H" level signal is output. Rotary switch 1
The signal of “H” level from the one-stage operation position “N” of 6-1
Signal and "H" level from the 1Q terminal of timer A 16-2
Is applied to a NAND gate NAND1. this
The NAND gate NAND1 receives the “L” level signal
Output. Thereby, the subsequent stage of the NAND gate NAND1
Through diode logic 16-7 connected to
Transistor TrA in the power transistor circuit 16-8
And TrB are turned on and the solenoid valve M connected thereto
VA and MVB are activated, and GSU12 is disengaged.
do. Normally, gear removal is completed from the state with gears engaged
The time required to become gear neutral is 0.5se
c or less, and use a timer to avoid continuous energization of the solenoid valve.
A. After the timer time set in 16-2 (10 sec),
An “L” level signal is output from the 1Q terminal,
The output of NAND1 is set to "H" level,
TrA and TrB are turned off, and solenoid valves MVA and MVA are turned off.
Stop operation of VB. When the rotary switch 16-1 is further turned clockwise
And the two-stage operation position “2”, this two-stage
A signal of “H” level is output from floor operation position “2”,
The transistor TrTMB is turned on, and the timer B · 16
-3, the signal level to the input terminal 2A falls.
Starts the timekeeping operation of timer B 16-3,
When determined by the time constant of the resistor R6 and the capacitor C1
During this time, an "H" level signal is output from the 2Q terminal.
You. 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. this
In response, NAND gates NAND2-4 attain an "L" level.
Output a signal. Thereby, the NAND gate NAND2
-4 and the diode logic 16-7 connected after
Through the transistor in the power transistor circuit 16-8.
Stars TrA, TrB, TrC and TrD are turned on.
And the solenoid valves MVA, MVB, MVC and
And MVD are activated, and GSU12 is in neutral line
Select above and move to position "N2"
You. Usually, the time required for the select movement is 0.1 se.
c Less than or equal to, but confirm movement to the target select position
Tie set to timer B 16-3 to make it real
After the delay time (0.5 sec), the “L” level from the 2Q terminal
And outputs the output of the NAND gate NAND2-4.
Set to the “H” level to prepare for the next shift movement. On the other hand, clockwise operation of the rotary switch 16-1
"H" level signal from two-stage operation position "2"
Is 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. Also timer
-The signal of the 2Q bar terminal is activated by the operation of B-16-3.
Fall to "L" level, but after timer set time
(0.5 sec) Rise to "H" level and flip D flip
For the CK (clock) terminal of D-FF-4
Given as a trigger. As a result, the D flip flow
The 4Q terminal of the D-FF-4 is connected to the level of the 4D terminal.
Equally to the “H” level, 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,
"H" level signal from 1Q terminal of timer A 16-2
Is given. Thereby, the NAND gate NAND
An “L” level signal is output from 3-4, and the NAND gate
The diode logic connected to the subsequent stage of NAND3-4
Via the switch 16-7, the previously turned on
During transistor TrA, TrB, TrC and TrD,
The transistor TrA turns off and the operation of the solenoid valve MVA stops.
GSU12 performs a shift operation on position "N2".
Then, it moves to position “2”. Normally, the gear is completely turned on from the neutral state.
The time required to complete is less than 1 second,
Timer A 16-2 set to avoid continuous energization
After timer time (10sec), "L" level from 1Q terminal
And outputs the output of the NAND gate NAND3-4.
"H" level, and the transistors TrB, TrC and
With TrD turned off, solenoid valves MVB, MVC and MV
The operation of D is stopped. [0039] As apparent from the above description, the book
According to the invention, the first rotation angle position of the rotary switch
Gear is disengaged in accordance with the switching operation from the position to the second rotation angle position.
And a third rotation signal is generated from the second rotation angle position.
Select signal and this signal according to the switching operation to the angular position
A shift signal is generated following the select signal, and a two-step operation is performed.
It is possible to switch between gear stages by
-The number of contacts for one switch, that is, one operation knob
It is possible to change the speed of each stage of forward and reverse
It is possible to improve operability, reduce manufacturing cost, and save specifications.
Can be promoted.

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 shift speed 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. [Description of Signs] 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.

Continuation of the front page (56) References JP-A-7-190182 (JP, A) JP-A-2-66760 (JP, A) JP-A-63-57948 (JP, A) JP-A-62-44161 (JP, A) , U) (58) Fields investigated (Int. Cl. ⁷ , DB name) F16H 59/00-61/12 F16H 61/16-61/36 F16H 63/00-63/48 B60K 20/00-20 / 08

Claims (1)

(57) [Claims 1] A rotary switch operated in an emergency, and a second rotation angle position of the rotary switch from a first rotation angle position.
According to the switching operation to the rotation angle position of the second rotation angle.
According to the switching operation from the degree position to the third rotation angle position, the
After switching to the second rotation angle position and the third rotation angle
The first timer that starts its timing operation after switching to the position
A third rotation angle position of the rotary switch from the second rotation angle position of the rotary switch;
The third rotation angle position in accordance with the switching operation to the third rotation angle position.
After the switch to the timer,
Second timer to start timing operation with short im-up time
Means and the second rotational angle position after switching to the second rotational angular position.
While the 1st timer means is performing the timing operation, the gear release signal
And after switching to the third rotational angle position
Wherein both the first and second timer means are time-measuring.
During the operation, the select signal is generated, and the third
After switching to the turning angle position, the first timer
A shift control signal generating means for generating a shift signal while only the gear is performing the timekeeping operation .