JP2013047609A - Display device for vehicle - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a display device for a vehicle capable of improving the instantaneous recognizability of an alarm lamp by improving a sense of integrity in the design as a whole of the display device for a vehicle, and further improving the sense of the integrity in the design.SOLUTION: An index part 21 displays an index according to the number of evolutions of an engine or power information of a motor output, a warning area display part 22 displays a predetermined area of a power source in red corresponding to the index part 21, and display control means 50 controls a second light source 22a for illuminating the warning area display part 22 so that the warning area display part 22 is not displayed in red when the number of evolutions of the engine or the power information of the motor output is less than a predetermined threshold.

Description

  The present invention relates to a vehicle display device that is mounted on a vehicle equipped with a power source such as an engine or a motor, and particularly displays an output value (engine speed, motor output) of the power source.

For example, Patent Document 1 discloses a conventional vehicle display device that changes the light emission state of an ambient display unit depending on whether the fuel consumption of the vehicle is good or bad.
Such a vehicle display device changes the light emission state of the light source behind the display plate based on the fuel consumption information of the vehicle acquired from the vehicle ECU. (For example, change the emission color to green, blue, white, red, etc.)

JP 2011-93380 A

  However, the display device for a vehicle such as Patent Document 1 constantly changes during the traveling according to whether the fuel consumption of the vehicle is good or not, and the backlight illumination color of the display board changes as ambient display (during normal traveling, greenish blue white, etc.) Therefore, the driver tries to adapt to the environment in which the vehicle information is intuitively recognized by the illumination color of the ambient display, but in the tachometer showing the power information such as the engine speed or the motor output, Since the output area is always displayed in red, there is a possibility that the sense of unity of the design of the vehicle display device as a whole may be reduced, and a warning display (red) indicating an abnormal state of the vehicle is displayed. Even in such a case, since the red color is always displayed, there is a possibility that the degree of consciousness with respect to the warning display portion may be lowered or the recognition may be delayed.

  Accordingly, the present invention pays attention to the above-mentioned problems, improves the sense of unity of the overall display device for a vehicle, and further improves the unity of design, thereby improving the instantaneous cognition of warning lights. An object of the present invention is to provide a vehicular display device.

The present invention employs the following means in order to solve the above problems.
That is, the present invention includes an indicator unit that displays an indicator according to engine speed or motor output power information, and a warning region display unit that corresponds to the indicator unit and displays a predetermined region of the power source in red. The gist of the vehicular display device is that the vehicular display device includes display control means for preventing the warning area display unit from displaying red when the power information is less than a predetermined threshold.

In order to solve the above-described problems, the present invention provides an ambient display unit that changes a light emission state according to information related to a vehicle, a first light source disposed behind the ambient display unit, An indicator unit that displays an index according to engine speed or motor output power information, a warning area display unit corresponding to the index unit and displaying a predetermined range of the power information in red, and the warning area display unit And a second light source having at least a red emission color and a light arranged behind the warning area display unit and partitioning the light of the second light source into the area of the warning area display unit A guide, and display control means for controlling the second light source so that the warning area display unit does not display red when the power information is less than a predetermined threshold value.
As described above, when the power information is less than the predetermined threshold value, the warning area display unit is not displayed in red, thereby preventing a decrease in design uniformity due to red display with respect to the illumination color of the ambient display unit. Further, by eliminating the display of the warm color system at all times, it is possible to improve the instantaneous cognition of the warning display unit at the time of abnormality.

  In the second invention, the display control means causes the emission color of the second light source to emit light of a similar color to the emission color of the first light source when the power information is less than a predetermined threshold. With such a configuration, the illumination colors of the warning area display unit and the ambient display unit become similar colors, and the illumination color of the warning area display unit changes according to the vehicle information in the same manner as the ambient display unit. In contrast to this invention, it is possible to further improve the design uniformity as the entire vehicle display device.

  According to a third aspect of the present invention, in the vehicular display device further comprising a third light source disposed behind the indicator unit, the display control means is configured to display the first information when the power information is less than a predetermined threshold. The light emission colors of the second light source and the third light source are emitted in the same color as the light emission color of the first light source. Thus, in addition to the second invention, the indicator section is also an ambient display section. By synchronizing with, it is possible to further improve the design uniformity as the entire vehicle display device.

  According to a fourth aspect of the invention, the display control means causes the emission color of the second light source to emit light of the same color as the emission color of the third light source when the power information is less than a predetermined threshold. With such a configuration, it is possible to improve the unity of design between the indicator portion and the warning area display portion.

In the fifth invention, a warning display unit for displaying a warning based on the vehicle information;
A display device for a vehicle, further comprising: a fourth light source disposed behind the warning display unit, wherein the display control unit emits white light from the first light source when the warning display unit is displayed. The light is turned off. With such a configuration, it is possible to further improve the instantaneous cognition of the warning display unit at the time of abnormality.

  Provided is a vehicle display device capable of improving the instantaneous cognition of a warning light by improving the sense of unity of the design of the entire vehicle display device and further improving the unity of design.

It is a front view of the display apparatus for vehicles in one embodiment of the present invention. It is a block diagram of the display apparatus for vehicles in one Embodiment of the said invention. It is a flowchart of the display method of the warning area display part of the display apparatus for vehicles in one Embodiment of the said invention. It is 2nd Embodiment flowchart of the display method of the warning area display part of the display apparatus for vehicles in this invention. It is 3rd Embodiment flowchart of the display method of the warning area display part of the display apparatus for vehicles in this invention.

  Hereinafter, an embodiment of a display device 1 for a vehicle according to the present invention will be described with reference to FIGS. FIG. 1 is a front view of a vehicle display device 1 according to the present embodiment. FIG. 2 is a configuration diagram of the vehicle display device 1 according to the present embodiment. FIG. 3 is a flowchart showing a display method of the warning area display unit 22 of the vehicle display device 1.

  The vehicle display device 1 according to the present invention includes a speedometer 10, a tachometer 20, an ambient display unit 30, a warning display unit 40, and a display control unit 50.

  The speedometer 10 and the tachometer 20 are analog instruments provided with a pointer that is rotated by a driving source and a scale that is an instruction target of the pointer. Based on the vehicle information output from the vehicle ECU 2, a control ECU (not shown) sends a pointer control signal that prompts the driver to indicate and display the measured vehicle speed and engine speed (or motor output). The vehicle speed information and the engine speed information are displayed to the driver.

The tachometer 20 includes an index part 21 and a warning area display part 22.
The indicator unit 21 displays a scale and characters corresponding to the engine rotational speed of the vehicle or the power information of the motor output. A third light source 21a that emits light of a plurality of colors is disposed behind the indicator unit 21. The third light source 21a illuminates the indicator unit 21 and the vicinity thereof. It is composed of a plurality of LEDs that emit light of different colors.

The warning area display unit 22 is arranged in the vicinity of the indicator unit 21, for example, in an area where the engine speed is 5500 rpm or more, and transmits the light emitted from the second light source 22 a arranged behind, thereby shining. Is visually recognized.
The second light source 22a emits a plurality of colors having at least a red emission color, and includes, for example, a multicolor LED or a plurality of LEDs emitting different colors.
In addition, a light guide (not shown) is provided on the rear surface of the warning area display unit 22, and this light guide does not leak the light from the second light source 22a to the outside of the light guide, and the second light source efficiently. The warning area display unit 22 is illuminated with the light 22a.

The ambient display unit 30 is a region around the pointer of the speedometer 10 and is radiated and visually recognized by transmitting light emitted from the first light source 30a disposed behind the ambient display unit 30. For example, it is composed of a multicolor light emitting LED or a plurality of LEDs that emit light of different colors, and changes the light emission state according to the quality of the fuel consumption information of the vehicle.
In the present embodiment, the ambient display unit 30 is provided in a peripheral region of the pointer of the speedometer 10, but may be provided in a region in the tachometer 20 or a peripheral portion of the speedometer 10 or the tachometer 20.

The warning display unit 40 displays an alarm display including an oil alarm, an ABS alarm, and the like in an area in the tachometer 20, and transmits light emitted from the fourth light source 40a disposed behind. Therefore, it is brilliant and visually recognized.
The arrangement of the warning display unit 40 is not limited to the arrangement in the tachometer 20 as shown in the present embodiment, as long as it is in the vehicle display device 1.

The display control means 50 includes a microcomputer, and includes a ROM that stores a program for causing a light source to emit light, a CPU that executes the program, and a RAM that temporarily stores calculation results and data.
As shown in FIG. 2, the display control unit 50 includes a first light source 30 a that illuminates the ambient display unit 30, a second light source 22 a that illuminates the warning area display unit 22, and a third light source that illuminates the indicator unit 21. The light source 21a and the fourth light source 40a that illuminates the warning display unit 40 are controlled.

More specifically, the display control means 50 inputs fuel consumption information output from the vehicle ECU 2, and changes the emission color of the first light source 30a by a program based on the input fuel consumption information. For example, when the fuel consumption state is good, the first light source 30a emits green light, and when the fuel consumption state is bad, the first light source 30a emits blue light, and the second light source 22a and the third light source 21a Is emitted in the same color as the first light source 30a.
Then, the display control means 50 causes the second light source 22a to emit red light when the power information such as the engine speed or the motor output from the vehicle ECU becomes equal to or greater than a threshold value preset in the ROM.

The display method of the warning area display unit will now be described with reference to the flowchart of FIG.
In step S11, the display control means 50 receives power information (engine speed or motor output) from the vehicle ECU 2.
In step S12, the display control means 50 determines whether the power information input in step S11 is less than a preset threshold value.
If the power information is equal to or greater than the threshold value, in step S13, the display control means 50 emits light of the second light source 22a that illuminates the warning area display unit 22, and the third light source 21a that illuminates the indicator unit 21 and its vicinity. Is set to the same color as the emission color of the first light source 30a that illuminates the ambient display section 30.
If the power information is greater than or equal to the threshold value, the display control means 50 causes the second light source 22a that illuminates the warning area display unit 22 to be displayed in red in step S14.

  In the vehicle display device 1 of the present embodiment, the warning area display unit 22 is displayed in the same color as the ambient display unit 30 together with the indicator unit 21 when the power information is less than the threshold value. With this configuration, it is possible to prevent a decrease in design uniformity due to red display for the illumination color of the ambient display unit, and by eliminating the display of the warm color system (red) at all times, The instantaneous cognition of the warning display part at the time of abnormality can be improved.

  Next, a modified example of the vehicle display device 1 of the present invention will be described with reference to FIGS.

(Second Embodiment)
A second embodiment of the display method of the warning area display unit will be described with reference to the flowchart of FIG.
In step S21, the display control means 50 receives power information (engine speed or motor output) from the vehicle ECU 2.
In step S22, the display control means 50 determines whether the power information input in step S21 is less than a preset threshold value.
When the power information is equal to or greater than the threshold value, in step S23, the display control unit 50 uses the second light source 22a that illuminates the warning area display unit 22 in the same color as the emission color of the first light source 30a that illuminates the ambient display unit 30. Make color.
If the power information is greater than or equal to the threshold value, the display control unit 50 causes the second light source 22a that illuminates the warning area display unit 22 to be displayed in red in step S24.
With such a configuration, it is possible to prevent a decrease in design uniformity due to red display with respect to the illumination color of the ambient display section, and furthermore, by eliminating the display of the warm color system (red) at all times, the moment of warning display at the time of abnormality Cognition can be improved.

(Third embodiment)
A third embodiment of the display method of the warning area display unit will be described with reference to the flowchart of FIG.
In step S31, the display control means 50 receives power information (engine speed or motor output) from the vehicle ECU 2.
In step S32, the display control means 50 determines whether the power information input in step S31 is less than a preset threshold value.
When the power information is equal to or greater than the threshold value, in step S33, the display control unit 50 displays the second light source 22a that illuminates the warning area display unit 22, and the emission color of the third light source 21a that illuminates the indicator unit 21 and its vicinity. Same color.
If the power information is greater than or equal to the threshold value, the display control unit 50 causes the second light source 22a that illuminates the warning area display unit 22 to be displayed in red in step S34.
With such a configuration, it is possible to improve the sense of unity of the design of the index unit and the warning area display unit.

(Third embodiment)
Further, based on the vehicle information, when the fourth light source 40a behind the warning display unit 40 is turned on and the warning display unit 40 is displayed brilliantly, the display control means 50 emits the first light source 30a to emit white light. Or turn it off. With such a configuration, it is possible to further improve the instantaneous recognition of a warning display at the time of abnormality.

(Fourth embodiment)
In addition, when the ambient display unit 30 is arranged in the tachometer 20, the first light source 30a that illuminates the ambient display unit 30 and the third light source 21a that illuminates the indicator unit 21 and the vicinity thereof are shared. A light source may be used. With such a configuration, it is possible to give a sense of unity to the design while reducing parts such as a light source.

(Fifth embodiment)
The display control means 50 may shift the hue and brightness of the second light source 22a and the third light source 21a by a predetermined value with respect to the first light source 30a. With such a configuration, it is possible to highlight a certain part while maintaining the design uniformity of the entire vehicle display device.

DESCRIPTION OF SYMBOLS 1 Display apparatus for vehicles 2 Vehicle ECU
DESCRIPTION OF SYMBOLS 10 Speedometer 20 Tachometer 21 Indicator part 21a 3rd light source 22 Warning area display part 22a 2nd light source 30 Ambient display part 30a 1st light source 40 Warning display part 40a 4th light source 50 Display control means

Claims (5)

An ambient display unit that changes a light emission state according to information about the vehicle;
A first light source disposed behind the ambient display;
An indicator for displaying an indicator according to the engine speed or motor output power information;
A warning area display unit corresponding to the indicator unit and displaying a predetermined range of the power information in red;
A second light source disposed behind the warning area display unit and having at least a red emission color;
A light guide that is arranged behind the warning area display section and divides the light of the second light source into an area of the warning area display section;
And a display control means for controlling the second light source so that the warning area display section does not display red when the power information is less than a predetermined threshold. The display control means, when the power information is less than a predetermined threshold,
2. The vehicle display device according to claim 1, wherein a light emission color of the second light source is caused to emit light in a color similar to that of the first light source. In the vehicle display device further comprising a third light source disposed behind the indicator portion,
The display control means, when the power information is less than a predetermined threshold,
2. The vehicle display device according to claim 1, wherein the emission colors of the second light source and the third light source are emitted in a color similar to the emission color of the first light source. The display control means, when the power information is less than a predetermined threshold,
2. The vehicle display device according to claim 1, wherein a light emission color of the second light source is emitted in a color similar to a light emission color of the third light source. In the vehicle display device further comprising: a warning display unit that displays a warning based on the vehicle information; and a fourth light source disposed behind the warning display unit.
5. The vehicle display device according to claim 1, wherein when the warning display unit is displayed, the display unit causes the first light source to emit white light or to turn it off.

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