JPH05310077A - Dimmer for vehicle - Google Patents
Dimmer for vehicleInfo
- Publication number
- JPH05310077A JPH05310077A JP4070616A JP7061692A JPH05310077A JP H05310077 A JPH05310077 A JP H05310077A JP 4070616 A JP4070616 A JP 4070616A JP 7061692 A JP7061692 A JP 7061692A JP H05310077 A JPH05310077 A JP H05310077A
- Authority
- JP
- Japan
- Prior art keywords
- illuminance
- brightness
- current value
- display
- tunnel
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
Links
Landscapes
- Arrangements Of Lighting Devices For Vehicle Interiors, Mounting And Supporting Thereof, Circuits Therefore (AREA)
Abstract
Description
【０００１】[0001]
【産業上の利用分野】本考案は車両に使用される表示器
の調光機能に係り、特に周囲の照度変化によって自動的
に輝度調節を必要とする運転台に好適な調光装置に関す
る。BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a dimming function of a display used in a vehicle, and more particularly to a dimming device suitable for a driver's cab which requires automatic brightness adjustment according to changes in ambient illuminance.
【０００２】[0002]
【従来の技術】車両特に鉄道車両の運転台には各種の光
学表示器があるが、その輝度は一定である。2. Description of the Related Art There are various kinds of optical indicators on the driver's cab of vehicles, especially railway vehicles, but their brightness is constant.
【０００３】[0003]
【発明が解決しようとする課題】車両がトンネルに入っ
たとき、またはトンネルから出たときのように周囲の光
度が大きく変化した場合において、運転台の光学表示器
の輝度が一定であると、光学表示器の判読が困難にな
り、危険である。When the brightness of the surroundings greatly changes, such as when a vehicle enters or leaves a tunnel, if the brightness of the cab optical display is constant, The optical display is difficult to read and dangerous.
【０００４】本発明の目的は、周囲の光度に応答して表
示器の輝度が変化するようにすることにある。It is an object of the present invention to allow the brightness of a display to change in response to ambient light intensity.
【０００５】[0005]
【課題を解決するための手段】上記目的は、表示器の周
囲の照度を検出するセンサの信号によって前記表示器の
輝度を設定する制御装置として、照度が小さくなった場
合は表示器の輝度を大きくするように電流値を大きく
し、所定時間後、前記照度に対応した輝度になるように
電流値を低下させ、逆に、照度が大きくなった場合は表
示器の輝度を小さくするように電流値を大きくし、所定
時間後、前記照度に対応した輝度になるように電流値を
増加させるように構成することにより、達成される。As a control device for setting the brightness of the display according to a signal of a sensor for detecting the illuminance around the display, the brightness of the display is controlled when the illuminance becomes small. Increase the current value to increase, and after a predetermined time, decrease the current value so that the brightness corresponds to the illuminance, and conversely, if the illuminance increases, decrease the brightness of the display unit. This can be achieved by increasing the value and increasing the current value so that the brightness corresponds to the illuminance after a predetermined time.
【０００６】[0006]
【作用】人間の目が周囲の照度になれるまで、輝度を過
大または過小にしているので、運転手の目の応答送れに
よる表示器のご判読を防止することができる。The brightness is set to be too high or too low until the human eyes reach the illuminance of the surroundings. Therefore, it is possible to prevent the display from being read by the driver when the eyes are responsive.
【０００７】[0007]
【実施例】以下、本考案の一実施例を図１、図２、図３
により説明する。１は表示器の周囲の照度を検知するセ
ンサ、２はセンサからの信号を読みとり、特性をもつ電
流に変換し、また特性のパターンを記憶する制御装置、
３は制御装置２で変換された電流をベース電流とするト
ランジスタ、４は車両の運転台に設置する表示器、５は
制御装置２で電流に変換する時の特性のパターンを変え
る手動ロータリースイッチである。DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENT An embodiment of the present invention will be described below with reference to FIGS.
Will be explained. 1 is a sensor that detects the illuminance around the display, 2 is a control device that reads a signal from the sensor, converts it into a current having characteristics, and stores a pattern of characteristics,
3 is a transistor whose base current is the current converted by the control device 2, 4 is an indicator installed on the driver's cab of the vehicle, and 5 is a manual rotary switch for changing the characteristic pattern when the control device 2 converts the current. is there.
【０００８】制御装置２は、照度の変化量に対して図２
に示すように電流値を変化させるものである。すなわ
ち、車両がトンネル内またはトンネル外を走行している
ときのように照度の変化が無い（ｘ＝０）場合は電流値
を変化させない（輝度を変化させない）。トンネル外か
らトンネル内に入った場合のように照度が小さくなった
場合（ｘ＞０）は表示器の輝度を大きくするように電流
値を大きくし、所定時間後、前記照度に対応した輝度に
なるように電流値を低下させる。前記所定時間内に大き
くする電流値は所定値であり、現在の電流値に加算す
る。逆に、トンネル内からトンネル外に出た場合のよう
に照度が大きくなった場合（ｘ＜０）は表示器の輝度を
小さくするように電流値を大きくし、所定時間後、前記
照度に対応した輝度になるように電流値を増加させる。
前記所定時間内に小さくする電流値は所定値であり、現
在の電流値から減算する。前記所定時間とは運転手の目
が周囲の照度になれるまでに要する時間である。前記所
定値は前記所定時間内において見易い輝度を得るための
電流値である。ロータリースッチ６は前記所定時間、お
よび所定値の組合せを変化させるものである。The control device 2 controls the amount of change in illuminance as shown in FIG.
The current value is changed as shown in. That is, when the illuminance does not change (x = 0) as when the vehicle is traveling inside or outside the tunnel, the current value is not changed (the brightness is not changed). When the illuminance becomes small (x> 0), such as when entering the tunnel from outside the tunnel, the current value is increased to increase the brightness of the display, and after a predetermined time, the brightness corresponding to the illuminance is obtained. The current value is reduced so that The current value increased within the predetermined time is a predetermined value and is added to the current current value. On the other hand, when the illuminance becomes large (x <0), such as when exiting from inside the tunnel, the current value is increased so as to reduce the brightness of the display, and after a predetermined time, the illuminance is adjusted. The current value is increased so that the brightness becomes the specified brightness.
The current value to be reduced within the predetermined time is a predetermined value and is subtracted from the current current value. The predetermined time is the time required for the driver's eyes to reach the ambient illuminance. The predetermined value is a current value for obtaining an easily visible brightness within the predetermined time. The rotary switch 6 changes the combination of the predetermined time and the predetermined value.
【０００９】以 上の構成であるので、車両がトンネル
に入ったり、トンネルから出ると、図３に示すように、
表示器の輝度が変化する。このため、運転者は表示器を
見易く、ご判読を防止できるものである。With the above configuration, when the vehicle enters or leaves the tunnel, as shown in FIG.
The brightness of the display changes. For this reason, the driver can easily see the display and prevent it from being read.
【００１０】前記実施例ではトンネルに入ったか出たか
を照度で検出しているが、車両にトンネルに対する位置
を検出する装置を設け、この装置の信号によって前記所
定時間内の輝度を変化させるようにしてもよい。前記検
出装置は、例えば、トンネルの入り口、出口にそれぞれ
ストライカを設け、車両には前記ストライカを検出する
センサを設けることにより、構成できる。In the above-described embodiment, whether the vehicle enters or leaves the tunnel is detected by the illuminance. However, a device for detecting the position with respect to the tunnel is provided in the vehicle, and the brightness within the predetermined time is changed by the signal of this device. May be. The detection device can be configured, for example, by providing strikers at the entrance and exit of the tunnel and providing a vehicle with a sensor for detecting the striker.
【００１１】[0011]
【発明の効果】本発明によれば、人間の目の特性に応答
して輝度が定まるので、まぶしさによる運転への影響
や、暗さによる表示器のＯＮ、ＯＦＦの見落としを最小
限に抑えられる効果がある。According to the present invention, since the brightness is determined in response to the characteristics of the human eye, the influence of glare on driving and the oversight of ON / OFF of the display due to darkness can be minimized. It is effective.
【図１】本発明の一実施例の表示灯調光装置の調光回路
図である。FIG. 1 is a dimming circuit diagram of an indicator light dimming device according to an embodiment of the present invention.
【図２】調光回路に設ける制御装置内の変換フローチャ
ートである。FIG. 2 is a conversion flowchart in the control device provided in the dimming circuit.
【図３】周囲の照度変化に対する表示器の照度変化を示
すグラフである。FIG. 3 is a graph showing a change in illuminance of a display device with respect to a change in ambient illuminance.
１…照度検知センサ、２…制御装置、３…トランジス
タ、４…表示器、５…ロータリースイッチ。1 ... Illuminance detection sensor, 2 ... Control device, 3 ... Transistor, 4 ... Indicator, 5 ... Rotary switch.
Claims (1)
の照度を検出するセンサと、該センサの信号によって前
記表示器の輝度を設定する制御装置とからなり、前記制
御装置は、照度が小さくなった場合は表示器の輝度を大
きくするように電流値を大きくし、所定時間後、前記照
度に対応した輝度になるように電流値を低下させ、逆
に、照度が大きくなった場合は表示器の輝度を小さくす
るように電流値を大きくし、所定時間後、前記照度に対
応した輝度になるように電流値を増加させるものである
こと、を特徴とする車両用調光装置。1. A driver's cab display of a vehicle, a sensor for detecting illuminance around the display, and a controller for setting the brightness of the display according to a signal from the sensor. When the illuminance is low, the current value is increased so that the brightness of the display is increased, and after a predetermined time, the current value is decreased so that the brightness corresponds to the illuminance, and conversely, the illuminance is increased. In the case of lighting, the current value is increased so as to reduce the brightness of the display, and after a predetermined time, the current value is increased so as to reach the brightness corresponding to the illuminance. apparatus.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP4070616A JPH05310077A (en) | 1992-03-27 | 1992-03-27 | Dimmer for vehicle |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP4070616A JPH05310077A (en) | 1992-03-27 | 1992-03-27 | Dimmer for vehicle |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPH05310077A true JPH05310077A (en) | 1993-11-22 |
Family
ID=13436720
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP4070616A Pending JPH05310077A (en) | 1992-03-27 | 1992-03-27 | Dimmer for vehicle |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH05310077A (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2008513294A (en) * | 2004-09-22 | 2008-05-01 | ダヴ | Car lighting equipment |
| WO2012011164A1 (en) * | 2010-07-20 | 2012-01-26 | 三菱電機株式会社 | In-cab display system and display control method for in-cab display device |
| FR3040350A1 (en) * | 2015-09-01 | 2017-03-03 | Valeo Vision | DRIVING ASSIST DEVICE FOR VEHICLE, BASED ON BRIGHTNESS TO COME IN FRONT OF THE VEHICLE |
-
1992
- 1992-03-27 JP JP4070616A patent/JPH05310077A/en active Pending
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2008513294A (en) * | 2004-09-22 | 2008-05-01 | ダヴ | Car lighting equipment |
| WO2012011164A1 (en) * | 2010-07-20 | 2012-01-26 | 三菱電機株式会社 | In-cab display system and display control method for in-cab display device |
| CN102985278A (en) * | 2010-07-20 | 2013-03-20 | 三菱电机株式会社 | In-cab display system and display control method for in-cab display device |
| JP5323262B2 (en) * | 2010-07-20 | 2013-10-23 | 三菱電機株式会社 | Driver's cab display system and display control method for cab display device |
| US8766814B2 (en) | 2010-07-20 | 2014-07-01 | Mitsubishi Electric Corporation | Motorman's cab display system and display control method for motorman's cab display apparatus |
| FR3040350A1 (en) * | 2015-09-01 | 2017-03-03 | Valeo Vision | DRIVING ASSIST DEVICE FOR VEHICLE, BASED ON BRIGHTNESS TO COME IN FRONT OF THE VEHICLE |
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