JP2000211395A - Gear change position display device for automatic transmission for automobile - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a shift position display device for an automatic transmission for an automobile capable of displaying the shift position, effectively utilizing the structure of a pointer instrument. SOLUTION: A shift position display device 10 is formed of a display panel 11 provided on the central part of an instrument panel B, a driving device disposed on the rear side of the instrument panel B at a position corresponding to the display panel 11, and a pointer 12 supported at the tip end portion of a pointer shaft elongating rotatably from the driving device through the display panel 11. An arc-like automatic shift position scale portion 11a is formed on the surface of the display panel 11 by printing, with the display of a parking range 'P', or the like provided to the automatic shift position scale portion 11a.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a shift position display device for an automatic transmission of a vehicle.

[0002]

2. Description of the Related Art Conventionally, for example, a shift position display device for an automatic transmission of an automobile displays each shift position of the automatic transmission by lighting a lamp, or displays segments by a liquid crystal panel or a fluorescent display tube. Usually there is.

[0003]

However, in the above-mentioned shift position display device, there are a plurality of shift positions of the automatic transmission, so that there is a problem that a plurality of ramps are required in accordance with the shift positions. In addition, as described above, there is a problem that expensive display devices such as a liquid crystal panel and a fluorescent display tube are required for segment display.

In view of the foregoing, the present invention provides a shift position display device for an automatic transmission of a vehicle, which displays a shift position by effectively utilizing the structure of a pointer instrument. The purpose is to:

[0005]

To achieve the above object, a shift position display device for an automatic transmission of a vehicle according to the present invention is provided with an automatic shift position indicating a shift position of an automatic transmission of a vehicle. A display panel (11) formed with a scale portion (11a); a driving device provided on the back side of the display panel to extend a pointer shaft rotatably through the display panel; A pointer (12) supported by the tip of the pointer shaft so as to rotate along the pointer shaft and indicating and displaying the shift position of the automatic transmission at the automatic transmission position scale section in accordance with the rotation of the pointer shaft.

As described above, since the shift position indicator has a configuration as a pointer instrument provided with a pointer and a driving device,
The shift position indicator indicates and displays the shift position with the hands. As a result, the shift position indicator can provide an unprecedented new look at low cost.
According to the invention described in claim 2, in the invention described in claim 1, the automatic transmission is also used as a manual transmission. A manual shift position scale (11b) indicating a shift position of the transmission as a manual transmission is formed, and a pointer indicates a shift position of the automatic transmission as a manual transmission at the manual shift position scale. indicate.

In this way, even when the automatic or manual shift position is instructed and displayed by the pointer, an unprecedented new appearance can be provided at low cost as in the first aspect of the present invention. .

[0008]

Embodiments of the present invention will be described below with reference to the drawings. (First Embodiment) FIGS. 1 and 2 show an embodiment of a combination meter for an automobile to which the present invention is applied.

As shown in FIG. 1, the combination meter includes a shift position indicator 10, a vehicle speed indicator 20, and an engine tachometer 30. It should be noted that in FIG.
Indicates a front cover. Shift position indicator 10
Is a display panel 11 provided at the center of the instrument panel B,
A drive device (not shown) positioned on the back side of the display panel 11 corresponding to the display panel 11, and a pointer 12 supported by a distal end portion of a pointer shaft extending from the drive apparatus so as to rotate through the display panel 11.
It is composed of

On the surface of the display panel 11, an arc-shaped automatic shift position scale 11a is printed and formed. The automatic shift position scale 11a has a parking range "P",
A reverse range “R”, a neutral range “N”, a drive range “D”, a high speed range “2”, and a low speed range “1” are formed. The driving device employs, for example, a step motor or a cross coil. The driving device rotates the pointer shaft according to the input signal. The pointer 12 rotates in conjunction with the rotation of the pointer shaft, and indicates and displays the shift position of the automatic transmission on the automatic shift position scale 11a of the display panel 11.

The speedometer 20 includes a scale 21 provided on the instrument panel B, a driving device (not shown) positioned on the back side of the instrument panel B corresponding to the scale 21, and a scale 21 from the driving device. And a pointer 22 supported at the tip of a pointer shaft extending rotatably through the pointer. The vehicle speed is indicated by the pointer 22 under the driving of the driving device. Further, the engine tachometer 30 includes a scale plate 31 provided on the instrument panel B,
A driving device (not shown) located on the back side of the instrument panel B corresponding to the scale 31;
And a pointer 32 supported at the tip end of a pointer shaft extending rotatably through the pointer 1. The rotation speed of the engine is indicated by the pointer 32 under the driving of the driving device.

The drive units for the shift position display 10, the vehicle speedometer 20, and the engine tachometer 30 are housed in a casing assembled to the instrument panel B from the back side.
Next, a circuit configuration for driving the shift position display 10, the vehicle speedometer 20, and the engine tachometer 30 will be described with reference to FIG. The shift position sensor 40 includes a switching contact 41
And six fixed contacts 42 to 47 for selectively switching the switching contacts 41. Thus, the shift position sensor 40 detects the parking range “P”, the reverse range “R”, the neutral range “N”, the drive range “D”, and the high speed range “2” of the automatic transmission.
Alternatively, the switching contact 4
1 is a fixed contact 42, 43, 44, 45, 46 or 47
To be switched on.

The vehicle speed sensor 50 detects the speed of the vehicle. The rotation sensor 60 detects the rotation speed of the engine of the vehicle. The microcomputer 70 is supplied with power from the battery Ba via the ignition switch IG of the vehicle and is put into an operating state. And drive control of each drive unit of the engine tachometer 30.

In the first embodiment configured as described above, the ignition switch IG is closed to start the vehicle under a shift to the drive range of the automatic transmission. At this time, the shift position sensor 40 sets the switching contact 41 to the fixed contact 45 with the shift to the drive range.
And switch to The vehicle speed sensor 50 detects the vehicle speed of the vehicle, and the rotation sensor 60 detects the number of revolutions of the engine of the vehicle.

Then, the microcomputer 70 operates the fixed contact 4 of the switching contact 41 of the shift position sensor 40.
5, the shift position indicator 10 drives the drive device to rotate the pointer 12 along the display panel 11 to indicate and display the drive range "D" of the automatic shift position scale 11a. . In this case, the shift position indicator 10
However, as described above, the transmission position indicator 10 has a configuration as a pointer instrument including the pointer 12 and the driving device.
In this case, the shift position is instructed and displayed by the hands, and as a result, a novel appearance can be provided at low cost. Such an effect can be similarly achieved even when the automatic transmission is shifted to a range other than the drive range.

The vehicle speedometer 20 is controlled by a microcomputer 70 based on the output of the vehicle speed sensor 50 to indicate and display the vehicle speed. The engine tachometer 30 is controlled by the microcomputer 70 based on the output of the rotation sensor 60. Indication and display of engine speed. (Second Embodiment) FIGS. 3 and 4 show a second embodiment of the present invention.

In the second embodiment, the shift position indicator 1
0A is employed in place of the shift position indicator 10 in the combination meter described in the first embodiment. In the second embodiment, the automatic transmission described in the first embodiment is an automatic transmission that also serves as a manual transmission. Therefore, the automatic transmission according to the second embodiment has the automatic transmission function described in the first embodiment,
The manual transmission has a function of shifting to a first speed range "1", a second speed range "2", a third speed range "3", and a fourth speed range "4".

Accordingly, the shift position indicator 10A includes an arc-shaped manual shift position scale portion 11b on the surface of the display panel 11 of the shift position indicator 10 as shown in FIG. The print position is formed for displaying the shift position. Therefore, the first speed range “1”, the second speed range “2”, the third speed range “3”, and the fourth speed range “4” are printed on the manual shift position scale 11b.

The pointer 12 described in the first embodiment is driven by the driving device of the shift position indicator 10A to set the shift position at the time of manual shift of the automatic transmission on the manual shift position scale 11b. Display instructions. In the second embodiment, the manual mode shift switch 80,
An automatic mode shift switch 90 and a manual mode sensor 100 are connected to the microcomputer 70 instead of the shift position sensor 40 described in the first embodiment.

The manual mode shift switch 80 detects any one of the first to fourth speed ranges in the manual mode of the automatic transmission. The automatic mode shift switch 90 detects any one of the shift positions in the automatic mode of the automatic transmission. The manual mode sensor 100 detects a manual mode selection operation of the automatic transmission.

The microcomputer 70 described in the first embodiment performs, in addition to the processing described in the first embodiment, the outputs of the manual mode shift switch 80, the automatic mode shift switch 90, and the manual mode sensor 100. Process based on Other configurations of the shift position indicator 10A are the same as those of the shift position indicator 10 described in the first embodiment.

In the second embodiment constructed as described above, when the automatic transmission is shifted to the drive range "D" as described in the first embodiment, the automatic mode shift switch 90 is driven. The range “D” is detected. Along with this, the microcomputer 70 drives the drive device of the shift position indicator 10A, and instructs and displays the drive range “D” on the automatic shift position scale 11a by the pointer 12.

On the other hand, when the automatic transmission is shifted as a manual transmission to, for example, the third speed "3", the manual mode sensor 100 detects the selection of the manual mode, and the manual mode shift switch 80 is set to the third mode. Speed "3" is detected. Accordingly, the microcomputer 70 drives the driving device of the shift position indicator 10A to change the third speed “3” by the hands 12 to the manual shift position scale 11
b.

In this case, like the first embodiment, the shift position indicator 10A has a configuration as a pointer instrument provided with the hands 12 and the driving device.
In the case of 0A, an automatic or manual shift position is instructed and displayed by a pointer. As a result, even in the second embodiment, an unprecedented new appearance can be provided at low cost.
Such effects can be similarly achieved even when the automatic transmission is shifted to a range other than the third speed as a manual transmission.

In practicing the present invention, the present invention is not limited to the shift position display in the combination meter for automobiles, but may be applied to the shift position display of various vehicles as in the above embodiments. The effect of the invention can be achieved.

[Brief description of the drawings]

FIG. 1 is a front view showing a first embodiment of the present invention.

FIG. 2 is a block diagram showing an electric circuit configuration of the first embodiment.

FIG. 3 is a front view showing a main part of a second embodiment of the present invention.

FIG. 4 is a block diagram showing an electric circuit configuration of the second embodiment.

[Explanation of symbols]

10, 10A: shift position indicator, 11a: automatic shift position scale, 11b: manual shift position scale, 12: pointer.

 ──────────────────────────────────────────────────続 き Continued on the front page F term (reference) 3D036 CA02 CA05 CA10 CA15 GH26 GJ01 3J052 AA19 DB01 EA09 GA17 GA18 GC41 GC46 GC72 LA01

Claims (2)

[Claims] A display panel (1) formed with an automatic transmission position scale (11a) representing a transmission position of an automatic transmission of a vehicle.
1) a driving device provided on the back side of the display panel to extend a pointer shaft rotatably through the display panel; and a tip of the pointer shaft to rotate along the surface of the display panel. A shift position display device for an automatic transmission of a vehicle, comprising a pointer (12) supported by a portion and indicating and displaying a shift position of the automatic transmission at the automatic shift position scale section in accordance with the rotation of the pointer shaft. . 2. The automatic transmission according to claim 1, wherein the automatic transmission is also used as a manual transmission. In addition to the automatic transmission position scale, the automatic transmission includes a manual transmission indicating a transmission position of the automatic transmission as a manual transmission. The position scale (11b) is formed, and the pointer indicates and displays a shift position of the automatic transmission as a manual transmission at the manual shift position scale. 3. A shift position display device for an automatic transmission of a vehicle according to claim 1.