JP3385861B2 - Air conditioner display device for vehicles - Google Patents

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a vehicle air conditioner display device, and more particularly to a vehicle air conditioner capable of manually changing an air conditioner air outlet and manually switching outside air introduction / inside air circulation in addition to automatic control. The present invention relates to a vehicle air conditioning status display device.

[0002]

2. Description of the Related Art As a conventional example of this kind, Japanese Patent Laid-Open No. 59-4
In the car air conditioner control device described in Japanese Patent No. 0922, while the blower device (blower fan, etc.) is stopped, the display of the operating state of the inside / outside air selection device and the blowing air distribution device is stopped, and in exchange for this, the above selection is made. It is configured to allow manual operation of the device and dispenser.

However, under the condition that the selected state of inside / outside air and the distribution status of the outlets cannot be confirmed as a display, it is difficult to properly perform the manual operation of the device.

On the other hand, in the air conditioning control device for an automobile disclosed in Japanese Patent Laid-Open No. 3-25019, various displays are stopped when the blower is stopped as in the above, but the suction mode selection device for the inside / outside air or the blowing mode. When the selection device is operated, it is configured to display both operating states of the suction mode selection device and the blowout mode selection device,
The driver can manually operate the selection of the air outlet and the switching of the inside and outside air while looking at the display.

[0005]

However, in the above-mentioned conventional example, when the driver who wants to confirm the operating state operates the blowout mode selection switch or the like for the time being (steps 64 and 72 in FIG. 3 of the same publication). Although the operation state is displayed by the operation, the selection mode and the like are switched at the same time (steps 76 and 6 in FIG. 3).
8) For example, even though the desired mode was selected from the beginning, the operating mode was displayed, but the desired mode was switched to the undesired mode, and the desired mode was set again. There was an inconvenience that a situation that had to be fixed could occur.

[0006]

An object of the present invention is to improve the inconvenience of the conventional example, and more particularly, to provide a vehicle air-conditioning status display device for appropriately and easily selecting an air-conditioner air outlet and switching between introduction of inside air and outside air in a car auto air conditioner. The purpose is to provide.

[0007]

In order to achieve the above object, in the invention according to claim 1, at least the currently selected air conditioner air outlet and whether the air conditioner air is introduced into the outside air or is circulated in the inside air are displayed. It is provided with a possible indicator panel and a display control unit for controlling the display states of the outlet display and the inside / outside air display by the indicator panel. Then, the display control unit constantly displays at least one of the outlet display and the inside / outside air display at a brightness lower than the display brightness during the operation of the blower while the blower that blows the air conditioner is stopped. Is adopted.

Here, the air outlet display means a display showing the currently selected air conditioner air outlet. The inside / outside air display means a display indicating whether the air conditioner air is introduced into the outside air or circulated in the inside air.

In the present invention, the outlet panel display and the inside / outside air display are always displayed on the indicator panel even when the blower means such as the blower fan is stopped. The brightness is set lower than that in the normal display state. The driver performs manual selection of the outlet and manual switching of the inlet while checking the display.

According to a second aspect of the invention, the display control section is
A configuration in which, when the air conditioner air outlet is changed or when the outside air introduction and the inside air circulation are switched, the brightness of the corresponding outlet opening display or the inside / outside air display is set higher than the brightness when the blower is stopped. Is taking.

In the present invention, when the air conditioner air outlet is changed, the brightness of the air outlet display is set to be higher than the brightness when the air blowing means is stopped. On the other hand, when the introduction of the outside air and the introduction of the inside air are switched, the brightness of the inside / outside air display is set to be higher than the brightness when the blower unit is stopped.

According to another aspect of the present invention, the display control unit includes a timer, and the brightness of the outlet display or the inside / outside air display after a lapse of a certain time after the air conditioner air outlet is changed or the outside air introduction and the inside air circulation are switched. Is set to be lower than the above-mentioned high brightness.

In the present invention, when the air conditioner air outlet is changed, the brightness of the air outlet display is temporarily set high as described above, and is set low again after the elapse of a certain time. On the other hand, when the introduction of the outside air and the introduction of the inside air are switched, the brightness of the inside / outside air display is temporarily set to be high as described above, and is set to be low again after the elapse of a certain time.

According to another aspect of the present invention, the display control section includes:
It has a light lighting judgment function to judge whether the light of the vehicle is lit, and when it is judged that the light is lit, the outlet display or the brightness when it is judged that the light is not lit The brightness of the inside / outside air display is set low.

Here, the "light" includes various lights such as headlights and taillights used when the solar radiation is scarce. Further, the "light lighting judgment function" judges whether the light is turned on or off based on the setting state of the light lighting switch, and judges whether the light is turned on or off based on the light lighting control flag in the automatic light control. Things are included.

In the present invention, when it is determined that the light is turned on, the brightness of the outlet display or the inside / outside air display is set lower than the brightness when it was determined that the light was not turned on.

According to a fifth aspect of the invention, the display control section comprises:
The brightness of the outlet display and the brightness of the inside / outside air display are always set to be equal.

In the present invention, when the brightness of the outlet display is switched, the brightness of the inside / outside air display is also set to the same brightness as the brightness of the outlet display. When the brightness of the inside / outside air display is switched, the brightness of the outlet display is also set to the same brightness as the brightness of the inside / outside air display.

[0019]

[0020]

These are intended to achieve the above-mentioned object.

[0022]

DETAILED DESCRIPTION OF THE INVENTION

[First Embodiment]

A first embodiment of the present invention will be described below with reference to FIGS. 1 to 3.

The vehicular air-conditioning status display device shown in FIG. 1 has at least the currently selected air conditioner air outlet and an indicator panel 3 capable of displaying whether the air conditioner air is introduced into the outside air or is circulated in the inside air, and this indicator. Air outlet display 31 and inside / outside air display 32 by panel 3
And a display control unit 2 for controlling the display state of. Among these, the display control unit 2 makes at least one of the outlet display 31 and the inside / outside air display 32 lower than the display brightness during the operation of the blower while the blower (not shown) for blowing the air conditioner is stopped. It has a function to keep it constantly displayed in brightness.

More specifically, in the present embodiment, the display control unit 2 has a setting unit 1 including various switches.
Is attached. The setting unit 1 includes a fan start / stop switch 11 for starting or stopping the operation of a blower unit (blower fan) that blows air-conditioner air to the air outlet, and an air outlet for selecting a vehicle interior air outlet of the air-conditioner air. A selection switch 12 and an inside / outside air changeover switch 13 for switching between outside air introduction / inside air circulation are provided. The operation contents of each of the switches 11, 12, and 13 are input to the display control unit 2.

On the other hand, the display control section 2 is composed of a microcomputer, and mainly executes the following functions in addition to the above-mentioned functions by executing a microprogram prepared in advance.

For example, when the air conditioner air outlet is changed or the outside air introduction and the inside air circulation are switched, the display controller 2 controls the brightness of the outlet display 31 or the inside / outside air display 32 while the air blower is stopped. It has a function to set it higher than the brightness.

Further, the display control unit 2 is provided with a timer 21 for measuring a predetermined time, and after a lapse of a certain time after the air conditioner air outlet is changed or the outside air introduction and the inside air circulation are switched, the outlet port display 31 or the inside / outside air. It has a function of setting the brightness of the display 32 to be lower than the brightness set to be high. Details of the processing operation of the display control unit 2 will be described later.

The indicator 3 for receiving various control signals from the display control unit 2 and displaying various air-conditioning conditions is the air outlet display 3
In addition to the inside / outside air display 32, temperature display and the like are also possible, and are installed together with the setting unit 1 on the console of the vehicle driver's seat.

Next, the overall operation of the above embodiment will be described with reference to FIGS.

While the blower fan for blowing air is operating, the display control unit 2 displays all the indicators 3
Display with 0% brightness.

After that, when the fan start / stop switch 11 is operated to stop the blower fan, the display controller 2
As shown in FIG. 3A, the brightness of the air outlet display 31 and the inside / outside air display 32 are both set to 50%, and the other displays are stopped (step S1). Here, FIG.
In (e), a solid arrow indicates a display at a brightness of 100%, and a dotted arrow indicates a display at a brightness of 50%.

Then, it is judged again whether or not the fan has been started (step S2), and if the fan has not been started, it is judged whether or not the outlet selection switch 12 has been operated (step S3). As a result, when the outlet selection switch 12 is operated, the timer 21 is reset and started (step S6), and the outlet display 3 after the setting is changed by the outlet selection switch 12 as shown in FIG. 3B.
The brightness of 1 is set to 100% (step S7), and the brightness of the inside / outside air display 32 is set to 50% (step S8).
After that, the processing from step S2 is repeatedly executed.

According to this, the outlet display 31 which has been 50% in brightness until then is set to 100% in brightness when the outlet selection switch 12 is operated, and if the inside / outside air display 32 is set to 100 before that. Even if it is displayed with a brightness of%, the inside / outside air display 32 retreats to a brightness of 50%.

When it is determined in step S3 that the outlet selection switch 12 has not been operated, the display control section 2 determines whether the inside / outside air changeover switch 13 has been operated (step S4). As a result, when the inside / outside air changeover switch 13 is operated, the timer 21 is reset and started (step S9), and as shown in FIG. 3C, the inside / outside air display 32 after the setting change by the inside / outside air changeover switch 13 is performed. Brightness is set to 100% (step S1
0), the brightness of the outlet display 31 is set to 50% (step S11). After that, the processing from step S2 is repeatedly executed.

According to this, the inside / outside air display 32, which had been 50% in brightness until then, is set to 100% brightness when the inside / outside air changeover switch 13 is operated, and if the outlet display 31 is set to 100% before that. Even if it is displayed with a brightness of%, the outlet display 31 is set back to a brightness of 50%.

When it is determined in step S4 that the inside / outside air changeover switch 13 is not operated, the display control unit 2 determines whether or not the time measured by the timer 21 has passed a preset time. (Step S5).
As a result, when a certain time has elapsed, FIG.
As shown in, both the brightness of the outlet display 31 and the brightness of the inside / outside air display 32 are set to 50% (step S12). afterwards,
The process from step S2 is repeatedly executed.

According to this, for example, when the outlet selection switch 12 is operated, the outlet display 31 set to 100% brightness is displayed for a certain period of time unless the outlet selection switch 12 or the inside / outside air changeover switch 13 is subsequently operated. After that, the brightness retreats again to 50%.

The display control unit 2 in step S5
When it is determined that the time measured by the timer 21 has not passed the predetermined time, the process from step S2 is repeatedly executed while maintaining the current display state.

On the other hand, when it is determined in step S2 that the blower fan for blowing air has been started by the operation of the fan start / stop switch 11, as shown in FIG. 3 (e), the air outlet display 31 and the inside / outside air display 32 are displayed. Brightness of 100
In addition to setting%, all other necessary parameters including temperature display and the like are also displayed (step S13), and the conventional normal display state is restored.

As described above, according to the present embodiment, the display control unit 2 displays at least one of the outlet display 31 and the inside / outside air display 32 based on the display brightness during operation of the blower while the blower is stopped. Since it is always displayed at a low brightness, even in the manual control mode, the driver can easily recognize the outlet or the like currently selected from the display and whether or not it needs to be changed. It is possible to properly and easily change the air outlet of the air conditioner and switch the introduction of the inside / outside air after checking. In addition, the brightness of the air outlet display and the inside / outside air display is set to be lower when the blower is stopped than when the blower is operating, so it is easier for the driver to determine whether the blower is actually operating or stopped. Power consumption can be suppressed.

Further, the display control section 2 changes the brightness of the air outlet display 31 or the inside / outside air display 32 to the brightness when the air blowing means is stopped when the air conditioner air outlet is changed or the outside air introduction and the inside air circulation are switched. Since it is set higher than the above, the outlet display 31 or the inside / outside air display 32 can be more easily confirmed during the change operation, and the driver can easily proceed with the outlet selection operation or the like based on the display.

Furthermore, the display control unit 2 causes the air outlet display 31 or the inside / outside air display 3 after a certain time has elapsed since the air conditioner air outlet was changed or the outside air introduction and the inside air circulation were switched.
Since the brightness of No. 2 is set lower than the above set brightness, it is possible to effectively prevent the inconvenience that it is not possible to grasp whether the blower is operating or stopped after the outlet selection operation and the like. be able to.

[Second Embodiment]

A second embodiment of the present invention will be described below with reference to FIGS. 1 and 4 to 5.

In this embodiment, the function of the display control unit 2 is
This is different from the first embodiment described above. In the present embodiment, the display control unit 2 has a function of always setting the brightness of the outlet display 31 and the brightness of the inside / outside air display 32 to be equal. Other configurations are the same as those of the first embodiment described above.

Next, the overall operation of this embodiment will be described with reference to FIGS. 4 and 5.

When the entire apparatus is set to the operating state, the display controller 2 initially sets the brightness of the outlet display 31 and the inside / outside air display 32 to 50% as shown in FIG. 5 (a) (step S41). It is determined whether or not the fan start / stop switch 11 is turned off, that is, whether or not the blower fan for blowing air is stopped (step S42). Here, if the fan start / stop switch 11 is not set to OFF and the blower fan is in operation, all the displays on the indicator panel 3, that is, the outlet display 31, the inside / outside air display 32, the air volume display, and the AUTO display. , A / C, display brightness of set temperature is 10
After setting to 0% (step S49), step S42
The process from is repeatedly executed. The display on the indicator panel 3 at this time is as shown in FIG.

On the other hand, if the fan start / stop switch 11 is off, that is, if the blower fan is stopped, it is determined whether or not the outlet selection switch 12 has been operated (step S43). As a result, when the outlet selection switch 12 is operated, the timer 21 is reset and started (step S44), and as shown in FIG. 5B, the outlet display 31 after the setting is changed by the outlet selection switch 12 is displayed. Is set to 100%, and at the same time, the brightness of the inside / outside air display 32 is also set to 100% (step S45). The other displays remain off. Then, step S42
The process from is repeatedly executed.

According to this, the outlet display 31 and the inside / outside air display 32, which had been 50% in brightness until then, are set to 100% in brightness together with the operation of the outlet selection switch 12.

When it is determined in step S43 that the outlet selection switch 12 has not been operated, the display control unit 2 determines whether the inside / outside air changeover switch 13 has been operated (step S46). As a result, when the inside / outside air changeover switch 13 is operated, the processing from step S44 described above is executed. That is, the timer 21 is reset and started (step S44), and as shown in FIG. 5C, the brightness of the inside / outside air display 32 after the setting change by the inside / outside air changeover switch 13 is set to 100%, and at the same time, The brightness of the outlet display 31 is also set to 100% (step S45). The other displays remain off.
Then, the processing from step S42 is repeatedly executed.

According to this, the inside / outside air display 32 and the outlet display 31 which had been 50% in brightness until then are set to 100% in brightness together with the operation of the inside / outside air changeover switch 13.

When it is determined in step S46 that the inside / outside air changeover switch 13 is not operated, the display control section 2 determines whether or not the time measured by the timer 21 has passed a preset fixed time. (Step S4
7). As a result, when a certain time has passed,
As shown in (d), the outlet display 31 and the inside / outside air display 32.
Both of the luminances are set to 50% (step S48). The other displays remain off. Then, the processing from step S42 is repeatedly executed.

According to this, for example, when the outlet selection switch 12 is operated, the outlet display 31 and the inside / outside air display 32 which are set to 100% brightness are subsequently displayed by the outlet selection switch 12 or the inside / outside air changeover switch 13. Unless it is operated, the brightness retreats again to 50% after a certain time.

When it is determined in step S47 that the time measured by the timer 21 has not passed the predetermined time, the display control section 2 repeats the processing from step S42 while maintaining the current display state. .

On the other hand, if it is determined in step S42 that the blower fan for blowing air has been started by operating the fan start / stop switch 11 as described above, FIG.
As shown in (e), the outlet display 31 and the inside / outside air display 3
The brightness of 2 is set to 100%, and other displays (air flow rate display, AUTO, A / C, set temperature) are also set to 100%.
The display is performed with the brightness of (step S49), and the conventional normal display state is restored.

In this way as well, the same effect as that of the first embodiment can be obtained, and the display control unit 2 always sets the brightness of the outlet display 31 and the brightness of the inside / outside air display 32 to be equal. Since it is not necessary to separately provide a brightness control circuit for the outlet display 31 and a brightness control circuit for the inside / outside air display 32, the device cost can be reduced.

[Third Embodiment]

Next, a third embodiment of the present invention will be described with reference to FIGS. 6 to 8.

The vehicle air-conditioning status display device shown in FIG. 6 has at least the currently selected air conditioner air outlet and an indicator panel 6 capable of displaying whether the air conditioner air is introduced into the outside air or is circulated in the inside air, and this indicator. Air outlet display 31 and inside / outside air display 32 by panel 6
And a display control unit 5 for controlling the display state of. Among these, the display control unit 5 makes at least one of the outlet display 31 and the inside / outside air display 32 lower than the display brightness during the operation of the blower while the blower (not shown) for blowing the air conditioner is stopped. It has a function to keep it constantly displayed in brightness.

More specifically, in the present embodiment, the display control section 5 includes a setting section 4 including various switches.
Is attached. The setting unit 4 includes a fan start / stop switch 11 for starting or stopping the operation of a blower unit (blower fan) that blows air-conditioning air to the air outlet, and an air outlet for selecting an air-conditioning air outlet in the vehicle compartment. It is provided with a selection switch 12, an inside / outside air switching switch 13 for switching between outside air introduction / inside air circulation, and a light switch 44 for turning on / off a light of the vehicle. The operation contents of each of these switches 11, 12, 13, and 44 are
Each is input to the display control unit 5.

On the other hand, the display control section 5 is composed of a microcomputer, and mainly executes the following functions in addition to the above-mentioned functions by executing a microprogram prepared in advance.

For example, when the air conditioner air outlet is changed or the outside air introduction and the inside air circulation are switched, the display controller 5 controls the brightness of the outlet display 31 and the inside / outside air display 32 while the air blower is stopped. It has a function to set it higher than the brightness.

Further, the display control unit 5 is provided with a timer 21 for measuring a predetermined time, and after a lapse of a fixed time after the air conditioner air outlet is changed or the outside air introduction and the inside air circulation are switched, the outlet outlet display 31 and the inside / outside air are displayed. It has a function of setting the brightness of the display 32 to be lower than the brightness set to be high.

Further, the display control unit 5 has a light lighting judgment function for judging whether or not the light of the vehicle is turned on, and when it is judged that the light is turned on, the light is not turned on. The brightness of the outlet display 31 or the inside / outside air display 32 is set to be lower than the brightness at the time of determination. Details of the processing operation of the display control unit 5 will be described later.

The indicator panel 6 that receives various control signals from the display control unit 5 and displays various air-conditioning conditions includes an air outlet display 31, an inside / outside air display 32, a wind display, an AUTO display,
The A / C and the set temperature can be displayed, and the console of the vehicle driver's seat is equipped with the setting unit 4. In this embodiment, the indicator panel 6 is an LED display panel or a fluorescent display panel, and is capable of turning on the panel illumination light from the back of the display. Here, the illumination light for the panel is controlled to be turned on and off according to a control signal output from the display control unit 5.

Next, the overall operation of this embodiment will be described with reference to FIGS. 7 and 8.

When the entire apparatus is set to the operating state, the display control unit 5 determines whether the fan start / stop switch 11 is off, that is, whether the blower fan for blowing air is stopped (step). S71). As a result, if the fan start / stop switch 11 is off, that is, if the blower fan is stopped, it is determined whether or not the outlet selection switch 12 has been operated (step S72). Here, when the outlet selection switch 12 is operated, the timer 21 is reset and started (step S73), and the light switch 4 is activated.
4 is turned on, that is, it is determined whether or not the light is turned on (step S74).

As a result, if the light switch 44 is not on, the brightness of the outlet display 31 after the setting is changed by the outlet selection switch 12 is set after the panel illumination light is turned off (extinguished) (step S75). 1
The brightness of the inside / outside air display 32 is also set to 100% at the same time (step S76). The other air volume displays and the AUTO and A / C displays remain off. The display state at this time is shown in FIG.

On the other hand, if the light switch 44 is turned on, the panel illumination light is turned on (lighted) (step S77), and then the brightness of the air outlet display 31 is set to 50%. The brightness of the air display 32 is also set to 50% (step S78). The other air volume displays, AUTO, and A / C displays remain off. The display state at this time is shown in FIG.

When it is determined in step S72 that the outlet selection switch 12 has not been operated, the display control section 5 determines whether or not the inside / outside air switching switch 13 has been operated (step S79). As a result, when the inside / outside air changeover switch 13 is operated, the processing from step S73 described above is executed.

When it is determined in step S79 that the inside / outside air changeover switch 13 is not operated, the display control section 2 determines whether or not the time measured by the timer 21 has passed a preset fixed time. (Step S8
0). As a result, if the predetermined time has elapsed, it is determined whether the light switch 44 is on, that is, the light is on (step S81).

As a result, if the light switch 44 is not on, after the panel illumination light is set to off (light off) (step S82), the outlet display 31 is displayed.
And the brightness of the inside / outside air display 32 is set to 60% (step S83). The other air volume displays, AUTO, and A / C displays remain off. The display state at this time is shown in FIG.
Shown in.

On the other hand, if the light switch 44 is on, the panel illumination light is turned on (lighted) (step S84), and then the brightness of the outlet display 31 and the inside / outside air display 32 is set to 40% (step S84). Step S8
5). The other air volume displays, AUTO, and A / C displays remain off. The display state at this time is shown in FIG.

When it is determined in step S80 that the timer 21 has not yet counted the fixed time, the display control section 5 executes the processing from step S74 described above.

If it is determined in step S71 that the blower fan for blowing air has been started by operating the fan start / stop switch 11, it is determined whether the light switch 44 is on, that is, the light is on. (Step S86).

As a result, if the light switch 44 is not on, after the panel illumination light is set to off (light off) (step S87), the outlet display 31 is displayed.
The brightness of the inside / outside air display 32 is set to 100%, and the other air volume display, AUTO, A / C display are set to 100%.
It is displayed with a luminance of% (step S88). The display state at this time is shown in FIG.

On the other hand, if the light switch 44 is turned on, the panel illumination light is turned on (lighted) (step S89), and then the brightness of the outlet display 31 and the inside / outside air display 32 is set to 50%. The other air volume display, AUTO, and A / C display are also displayed with a brightness of 50% (step S90). The display state at this time is shown in FIG.

In this way as well, the same operation and effect as those of the first and second embodiments described above are obtained, and the display control unit 2 turns on the light when it determines that the light is turned on. Since the brightness of the outlet display 31 or the inside / outside air display 32 is set to be lower than the brightness when it is determined that the display is not performed, the display is displayed with high brightness during the daytime when it is difficult to see the display.
By displaying at low brightness at night when the display is easy to see, it is possible to reduce the power consumption without impairing the visual readability of the outlet display 31 and the inside / outside air display 32.

Here, in the third embodiment, as the light lighting judgment function, it is judged whether or not the light is turned on by turning on or off the light switch. However, in the vehicle equipped with the automatic light control function. In this case, the light lighting flag may be inspected to determine whether or not the light is turned on. Further, the reason why the light is turned on is to determine whether the outside has become dark enough to turn on the light. Therefore, it is determined whether the light switch is turned on (step S74 in FIG. 7, Instead of (S81, S86), for example, it may be determined whether the output value of the solar radiation sensor is below a predetermined threshold value for a certain period of time.

[Fourth Embodiment]

The fourth embodiment of the present invention will be described below with reference to FIG. In this embodiment, the indicator panel 6
An LCD display panel is used as, and the configuration is the same as that of the above-described third embodiment except that the display method on the LCD display panel is different. In the LCD display panel, the display control unit 5 controls the brightness of the liquid crystal backlight to adjust the display brightness of the air outlet display 31 and the inside / outside air display 32 (step S9 in FIG. 9).
6, S98, S103, S105, S108, S11
0). Other operations are the same as those in the third embodiment described above.

As described above, even if an LCD display panel is used as the indicator panel 6, the same operational effects as those of the above-described third embodiment can be obtained.

[0085]

Since the present invention is constructed and functions as described above, according to this, the display control section displays at least one of the outlet display and the inside / outside air display while the blower is stopped. Since it is always displayed at a brightness lower than the display brightness during operation, even in the manual control mode, the driver can easily recognize the currently selected outlet from the display, and it is necessary to change it. It is possible to appropriately and easily change the air conditioner air outlet and switch the inside / outside air introduction after checking whether or not there is. In addition, the brightness of the air outlet display and the inside / outside air display is set to be lower when the blower is stopped than when the blower is operating, so it is easier for the driver to determine whether the blower is actually operating or stopped. Power consumption can be suppressed.

According to the second aspect of the invention, the display control section comprises:
When the air conditioner air outlet is changed or when the outside air introduction and the inside air circulation are switched, the brightness of the outlet display or the inside / outside air display is set higher than the brightness when the air blower is stopped. Alternatively, the inside / outside air display can be more easily confirmed, and the driver can easily proceed with the operation for selecting the air outlet based on the display.

In the invention according to claim 3, the display control section is
Since the brightness of the outlet display or the inside / outside air display is set lower than the above-mentioned set brightness after a certain time has elapsed since the air conditioner air outlet was changed or the outside air introduction and the inside air circulation were switched, an outlet selection operation, etc. It is possible to effectively prevent the inconvenience that it becomes impossible to grasp whether the air blower is in operation or stopped after the end of step.

In the invention according to claim 4 , the display control section is
When it is determined that the light is on, the display brightness of the indicator panel (brightness of the outlet display or the inside / outside air display) is set lower than the brightness when it is determined that the light is not on. By displaying the display with high brightness during the daytime when it is difficult to see and with low brightness during the night when the display is easy to view, it is possible to reduce power consumption without impairing the visual readability of the outlet display and the inside / outside air display.

In the invention according to claim 5, the display control section is
Since the brightness of the air outlet display and the brightness of the inside / outside air display are always set to be equal, it is not necessary to separately provide a brightness control circuit for the air outlet display and a brightness control circuit for the inside / outside air display. It is possible to provide an unprecedented excellent vehicle air-conditioning status display device capable of achieving reduction.

[Brief description of drawings]

FIG. 1 is a block diagram showing a first embodiment of the present invention.

FIG. 2 is a flowchart showing an operation of the display control unit shown in FIG. 1 while a blowing unit is stopped.

FIG. 3 is a configuration diagram showing a display state of an indicator panel in the embodiment of FIG. 1, FIG. 3 (a) shows a basic display state when the blowing means is stopped, and FIG. 3 (b) shows an outlet selection switch. FIG. 3C shows a display state immediately after the operation, and FIG. 3C shows a display state immediately after the inside / outside air changeover switch is operated.
3D shows a display state after a lapse of a certain time from the switch operation, and FIG. 3E shows a display state after the blowing unit is started.

FIG. 4 is a flowchart showing the operation of the second embodiment of the present invention.

5 is a configuration diagram showing a display state of an indicator panel in the embodiment of FIG. 4, FIG. 5 (a) shows a basic display state when the blowing means is stopped, and FIG. 5 (b) shows an outlet selection switch. FIG. 5C shows a display state immediately after the operation, and FIG. 5C shows a display state immediately after the inside / outside air changeover switch is operated.
FIG. 5D shows a display state after a lapse of a certain time from the switch operation, and FIG. 5E shows a display state after the blower means is started.

FIG. 6 is a block diagram showing a configuration of a third exemplary embodiment of the present invention.

FIG. 7 is a flowchart showing the operation of the embodiment shown in FIG.

8 is a configuration diagram showing a display state of an indicator panel in the embodiment of FIG. 6, and FIG. 8 (a) shows a display state immediately after operating an outlet selection switch or an inside / outside air switching switch while the light is off. 8 (b) shows a display state immediately after operating the outlet selection switch or the inside / outside air switching switch while the light is on, and FIG. 8 (c) shows a display after a certain time has elapsed from the switch operation while the light is off. 8D shows a state, and FIG. 8D shows a display state after a lapse of a certain time from the switch operation while the light is on.
(E) shows the display state after the blower means is started while the light is off, and FIG. 8 (f) shows the display state after the blower means is started while the light is on.

FIG. 9 is a flowchart showing an operation of the fourth exemplary embodiment of the present invention.

[Explanation of symbols] 1,4 setting section 2,5 Display controller 3,6 Indicator panel 11 Fan start / stop switch 12 Air outlet selection switch 13 Inside / outside air selector switch 21 timer 31 Air outlet display 32 Inside / outside air display 44 light switch

Claims (5)

(57) [Claims] 1. An indicator panel capable of displaying at least the currently selected air conditioner air outlet and whether the air conditioner air is introduced into the outside air or is circulated in the inside air, and a display of the outlet and inside / outside air display by this indicator panel. A display control unit for controlling the state, wherein the display control unit displays at least one of the outlet display and the inside / outside air display during operation of the blower while the blower for blowing the air conditioner is stopped. A vehicle air-conditioning status display device characterized by being constantly displayed at a brightness lower than the brightness. 2. The display control unit, when the air conditioner air outlet is changed or when the outside air introduction and the inside air circulation are switched, the brightness of the air outlet display or the inside / outside air display corresponding to the change of the brightness. 2. The vehicle air-conditioning status display device according to claim 1, wherein the brightness is set higher than the brightness when the means is stopped. 3. The display control unit includes a timer, and the brightness of the outlet display or the inside / outside air display is adjusted after a lapse of a certain time after the air conditioner air outlet is changed or the outside air introduction and the inside air circulation are switched. The vehicle air-conditioning status display device according to claim 2, wherein the brightness is set lower than the brightness set to be high. 4. The display control unit has a light lighting judgment function for judging whether or not a light of a vehicle is turned on, and when it is judged that the light is turned on, the light is turned on. 4. The vehicle air-conditioning status display device according to claim 1, wherein the brightness of the air outlet display or the inside / outside air display is set lower than the brightness when it is determined that there is no air condition. 5. The vehicle air-conditioning condition according to claim 1, wherein the display control unit always sets the brightness of the outlet display and the brightness of the inside / outside air display to be equal to each other. Display device.