JPH0543904B2 - - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION (Field of Industrial Application) The present invention relates to a transmission device for an automatic transmission in which a shift position of the automatic transmission can be selected by operating a select switch such as a push button.

(Prior Art) Generally, the shift position of an automatic transmission is changed by manually operating a manual valve for switching using a floor-type or column-type lever. However, switching the manual valve requires a considerable amount of force, which is undesirable considering the increasing number of female drivers and elderly drivers.Moreover, the lever and the link mechanism connected to it occupy a considerable amount of space. This was not desirable in terms of enlarging the living space and ensuring freedom in design such as parts arrangement.

Therefore, recently, in order to solve the above-mentioned problems, for example, Utility Model Application No. 57-25237, No. 57-25238,
As shown in Publications No. 57-25239, No. 57-25240, and No. 57-143926, manual valves are switched by electromagnetic means such as a motor rather than by hand, and this electromagnetic means is controlled. A controller has been proposed in which the controller is provided with a select switch that commands the operating position of the electromagnetic means, and the shift position of the automatic transmission is changed in response to the operation of the select switch.

However, although this type of gear has the advantage of being able to easily change the gear position by operating a switch, it is not possible to shift to the desired gear position in the event that the select switch malfunctions. This may hinder the use of the vehicle. In other words, if this select switch malfunctions, for example, when you need to back up and then move forward to go to a repair shop, the automatic transmission may not switch to the reverse position or the drive position may not switch. A situation may arise where even the bare minimum of driving, such as going to a repair shop, becomes impossible because the vehicle does not work properly.

(Objective of the Invention) The present invention has been made in consideration of the above-mentioned circumstances, and is an automatic transmission that allows the shift position to be freely changed in an emergency manner even when the select switch fails. The purpose is to provide a transmission.

(Structure of the Invention) In order to achieve the above-mentioned object, in the present invention, as shown in FIG. A select switch 1 having shift switches 1.P to 1.1 which are correspondingly provided and manually operated, a controller 3, and an electromagnetic means 6.
In addition to this, a manually operated emergency switch 10, and emergency lamps 12.P to 12.1 provided corresponding to each shift position of the automatic transmission 4,
A failure determination means 21 for determining that the select switch 1 has failed; and the shift switches 1P to
1. Shift command blocking means 22 for blocking at least a shift position command signal from a malfunctioning shift switch from being input to the controller 3;
, a lighting means 23 for sequentially blinking the emergency lamps 12.P to 12.1 by activation of the emergency switch 10, and an emergency lamp 1 that was lit when the selection switch 1 was deactivated.
A shift control means 24 is provided for outputting a shift command signal to the controller 3 to shift to a shift position corresponding to 2.P to 12.1.

With this configuration, in the event that the select switch 1 malfunctions, it is activated by pressing the emergency switch 10 to blink the emergency lamps 12.P to 12.1 in sequence, and then the desired switch is activated. If the emergency switch 10 is deactivated when the emergency lamp corresponding to the desired shift position is lit, the automatic transmission 4 will be switched to the desired shift position.

(Example) In FIGS. 1 and 2, 1 is a select switch, which is 1・P, 1・R, 1・N, 1・
It has a configuration with six manually operated shift switches: D, 1/2, 1/1, and these are 1/P~
In the embodiment, each of the shift switches 1 and 1 is of a self-return type push button type (returns to its original position when the pressing force is released). Of course,
The shift switches 1 and P issue parking commands, the shift switches 1 and R issue reverse commands, the shift switches 1 and N issue neutral commands, the shift switches 1 and D issue drive commands, and shift switches 1 and 2 issue a drive command. commands 2nd speed, and shift switch 1.1 commands 1st speed. When any one of these shift switches is pressed, a shift position command signal is outputted to the logic section 2.

In addition to the controller 3, the logic section 2 has the functions of a failure determination means 21, a shift command blocking means 22, a lighting means 23, and an emergency shift control means 24, and the shift position command signal from the select switch 1 is It has input terminals P'-1 for receiving input, and output terminals P'-1' for outputting a shift position switching signal. In addition to the shift position command signal from the select switch 1, the logic section 2 receives an engine speed signal, an accelerator opening signal, a vehicle speed signal, etc. required for controlling the automatic transmission 4. ing.

The shift position switching signal from the logic section 2 is output to the motor drive circuit 5, and the motor drive circuit 5 controls the motor 6 as an electromagnetic means to control the servo control using a shift position detection device 7 such as a potentiometer. Under the control, the automatic transmission 4 is rotationally driven to a position corresponding to the shift position switching signal.
Switch the manual valve to the position corresponding to the above shift position switching signal.

The position of the motor 6, that is, the shift position of the automatic transmission 4, is displayed on the shift position display 9 by inputting the output from the position detection device 7 to the shift position display circuit 8. This shift position indicator 9
is composed of indicator lamps 9.P to 9.1 each consisting of a number of LED elements corresponding to the gear shift positions P to 1. For example, when the gear shift position is in the reverse position, the indicator lamp 9.R is lit. As in,
Only the indicator corresponding to the shift position of the automatic transmission 4 is lit. In the embodiment, the display device 9.P.about.9.1 is incorporated into the corresponding shift switch 1.P.about.1.1, and when turned on, the corresponding shift switch lights up entirely. It has become.

Reference numeral 10 in FIG. 2 denotes a manually operated emergency switch, which in this embodiment is of a self-reset type push-button type, and is incorporated into the select switch 1, for example, as shown in FIG. 1. The output from this emergency switch 10 is input to the logic section 2, and according to the output from the emergency switch 10, the emergency output terminals P'' to 1'' of the logic section 2 are The emergency lamp 12 P of the emergency lamp group 12 is outputted to the lamp control circuit 11 as appropriate.
~12.1 are turned on and off as appropriate. This emergency emergency lamp group 12 is P~1
For example, as shown in FIG. Built-in adjacent to and corresponding to. Then, when the output when the emergency switch 10 is activated is input to the logic section 2, output signals are sequentially output from the emergency output terminals P'' to 1'' of the logic section 2. 12・P lights up first (other emergency lamps are off - the same applies below), then emergency lamp 1
The emergency lamps 12.P to 12.1 flash in sequence, such as 2.R being lit, and after the emergency lamp 12.1 is lit, the emergency lamp 12.P is turned on again.
is lit. Then, when the emergency switch 10 is deactivated, the logic section 2 activates the emergency lamp 1.
Among 2.P to 12.1, only the emergency lamps that were lit when the above-mentioned activation was canceled are kept lit, and a gear changeover signal to the gearshift position corresponding to the lit emergency lamp is sent to the motor. Drive circuit 5
It is designed to output to. As mentioned above, when the emergency switch 10 is deactivated, the output from the logic section 2 to the motor drive circuit 5 is given priority to the shift position command signal from the select switch 1. However, in addition to this, when the emergency switch 10 is activated, the shift position command signal from the select switch 1 is not input to the logic section 2 in response to the output from this. You can do it like this.

Now, the control contents in the above configuration will be explained below based on the flowchart shown in FIG. In this embodiment, the failure determination means for the select switch 1 are determined when the shift switch 1.P to 1.1 continues to output, that is, turned on, for a certain period of time or more, and when the driver turns on the emergency switch for a certain period of time or more. This assumes two possibilities when 10 is held down.

First, in step _P1 , any one of shift switches 1.P to 1.1 is pressed for a certain period of time or more.
Determine whether it continues to be turned on. If this shift switch has not been turned on for a certain period of time, that is, if there is no abnormality in the shift switch,
Move to step _P2 .

In step _P2 , it is determined whether the emergency switch 10 has been turned on for a certain period of time or more. If the emergency switch 10 is turned on for more than a certain period of time, it means that the driver senses something abnormal when operating the shift switch of the select switch, and if it is not turned on for more than a certain period of time, there is a malfunction. Since it is not, go back to step P ₂ , and if it is turned on for more than a certain period of time, it will be judged as a failure and go to step P ₃ .
transition to.

At step _P3 , shift switch 1・P～
Display lamp 9・P~ compatible with all of 1.1
9.1 and turn off the shift switch 1.
Stop all functions of P~1・1. That is, the motor 6 is prevented from being driven based on the shift position command signal from the shift switches 1.P to 1.1. Then, in step _P4 , the emergency switch 10 itself incorporated in the select switch 1 is turned on in order to let the driver confirm that the select switch 1 is out of order.
Next, in step _P5 , the emergency switch 10 is turned on.
Determines whether or not has been turned on for a certain period of time. Of course, this emergency switch 10 is operated by the driver, and if it is not turned on for a certain period of time, it means that the driver has not indicated his intention to proceed to the next step. Then, the loop returns and the determination at step _P5 is performed again. On the other hand, if it is turned on for a certain period of time or more, the process moves to step _P6 .

In step P ₆ , based on the current state of the vehicle,
Only emergency lights that correspond to shiftable gear positions (which may include the current gear position) are used, i.e., since it is dangerous to switch to the reverse or parking position while driving forward, these dangerous shift positions are excluded. Only the emergency lamps corresponding to other shift positions are turned on in sequence. Of course, such a changeable shift position is determined based on various control signals such as the accelerator opening degree and the engine rotation speed that are input to the logic section 2, as described above.

Next, in step _P7 , it is determined whether the emergency switch 10 is turned off. When this emergency switch 10 remains ON, it is waiting for the driver to press it, so the loop returns to step _P7 again.
Keep the emergency lights flashing. On the contrary, OFF
When this happens, proceed to step _P8 .

In step _P8 , the gear shift position switching signal corresponding to the emergency lamp that was lit when the emergency switch 10 was pressed (turned OFF) is output from the logic section 2 to the motor drive circuit 5. The gear position can be changed. In other words, emergency switch 1
For example, the emergency lamp that was lit when 0 was turned off is lamp 12/D corresponding to the drive position.
If so, a shift position switching signal will be output from the output terminal D' of the logic section 2. Of course,
The emergency switch 10 is turned off when the emergency lamp corresponding to the gear shift position desired by the driver is lit. A certain amount of leeway is provided for the time each emergency lamp is lit so that 10 lights can be turned off.

Here, in step _P1 , if a certain shift switch continues to be ON for a certain period of time or more, the process moves to step _P9 , and the shift position display lamp corresponding to the shift switch that continues to be ON is turned off. , and prevents the motor 3 from being driven by the shift position command signal from the shift switch. After this, the process moves to step _P4 , and the same operations as described above are carried out.

If you want to change to another gear position after this, for example, press the emergency switch 10 by
You can do the same thing as described above by operating as shown in _P2 .

Although the embodiments have been described above, the present invention is not limited thereto, and includes, for example, the following cases.

In addition to the motor 6, a solenoid can also be used as the electromagnetic means for switching the manual valve of the automatic transmission 4.

In place of LED element 9.P~9.1, liquid crystal,
A light bulb etc. may be used, and a light bulb 12・P~1
An LED element, liquid crystal, etc. may be used instead of 2.1.

Each shift switch 1 of select switch 1
For P~1.1, an appropriate type such as a lever type can be used.

The most standard automatic transmission is P~16
Although the present invention has been described with reference to a transmission having two shift positions, the present invention can be similarly applied to other types of automatic transmissions, such as those having an overdrive shift position.

When sequentially blinking the emergency lamps 12.P to 12.1, all the emergency lamps may be blinked sequentially. In addition, this sequential blinking is such that when one emergency lamp is on, it is sufficient that the other emergency lamps are off, and the lighting method is such that the one emergency lamp itself blinks. It may be hot.

In order to make the operation easier to understand, the emergency switch 10 may be provided separately for steps P ₂ , P ₅ , and P ₇ , or any two of these functions may be combined into one. It may also be used for both purposes.

The purpose of lighting the emergency switch 10 is to actively notify the driver that the select switch 1 is in a malfunctioning state, so in addition to a lamp, a buzzer or the like that operates for a certain period of time may be used. A lamp for informing the driver of this failure may be provided at a different location than within the emergency switch 10, and furthermore, such a notification means may not be provided.

The emergency lamps 12.P to 12.1 may be provided in the shift switches 1.P to 1.1, and when turned on, only the portion of the shift switch marked P to 1 may be lit.

(Effects of the Invention) As is clear from the above, the present invention has the following advantages:
Even if the select switch breaks down, you can temporarily operate the emergency switch and switch the automatic transmission to the desired shift position while driving as necessary or heading to a repair shop.
It is possible to eliminate running problems caused by a malfunction of the select switch 1.

[Brief explanation of drawings]

FIG. 1 is an overall configuration diagram of the present invention. FIG. 2 is an overall circuit diagram showing an embodiment of the present invention. FIG. 3 is a flowchart showing control details according to the present invention. 1: Select switch, 1・P~1・1: Shift switch, 3: Controller, 4: Automatic transmission, 6: Motor (electromagnetic means), 10: Emergency switch, 12・P~12・1: Emergency lamp, 2
1: Failure determination means, 22: Shift command prevention means, 2
3: Lighting means, 24: Shift control means.

Claims (1)

[Scope of Claims] 1. An electromagnetic means 6 for switching the manual valve of the automatic transmission 4 to each shift position, a controller 3 for controlling the operation of the electromagnetic means 6, and a controller 3 corresponding to each shift position of the automatic transmission 4. a select switch 1 which has shift switches 1.P to 1.1 which are switched and manually operated, and which instructs the controller 3 to the operating position of the electromagnetic means 6; a manually operated emergency switch 10; emergency lamps 12.P to 12.1) provided corresponding to each shift position of the automatic transmission 4; a failure determination means 21 for determining that the select switch 1 has failed; and the shift switch 1.・Shift command blocking means 22 that prevents a shift position command signal from at least the malfunctioning shift switch 1.P.about.1.1 from being input to the controller 3; and the emergency switch 10. lighting means 23 that sequentially blinks the emergency lamps 12.P to 12.1 when activated; and the emergency lamps 12.P to 12.1 that were lit when the emergency switch 10 was deactivated.
emergency shift control means 24 for outputting a shift command signal to the controller 3 to a shift position corresponding to the shift position;
A transmission device for an automatic transmission, comprising: