JPH04271935A - Electric discharge lamp lighting device - Google Patents
Electric discharge lamp lighting deviceInfo
- Publication number
- JPH04271935A JPH04271935A JP3015383A JP1538391A JPH04271935A JP H04271935 A JPH04271935 A JP H04271935A JP 3015383 A JP3015383 A JP 3015383A JP 1538391 A JP1538391 A JP 1538391A JP H04271935 A JPH04271935 A JP H04271935A
- Authority
- JP
- Japan
- Prior art keywords
- discharge lamp
- lamp
- electric discharge
- hid lamp
- hid
- 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.)
- Granted
Links
- 238000005259 measurement Methods 0.000 claims abstract description 16
- 238000004519 manufacturing process Methods 0.000 description 5
- 238000010586 diagram Methods 0.000 description 4
- 238000001514 detection method Methods 0.000 description 3
- 230000003287 optical effect Effects 0.000 description 3
- 230000001052 transient effect Effects 0.000 description 3
- 230000000694 effects Effects 0.000 description 2
- 239000013307 optical fiber Substances 0.000 description 2
- 239000003990 capacitor Substances 0.000 description 1
- 238000007599 discharging Methods 0.000 description 1
- 239000000835 fiber Substances 0.000 description 1
Landscapes
- Circuit Arrangements For Discharge Lamps (AREA)
- Lighting Device Outwards From Vehicle And Optical Signal (AREA)
Abstract
Description
【0001】0001
【産業上の利用分野】この発明は、特に車両のヘッドラ
イトとして使用する放電灯の始動に適した放電灯点灯装
置に関するものである。BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a discharge lamp lighting device particularly suitable for starting discharge lamps used as vehicle headlights.
【0002】0002
【従来の技術】HIDランプなどの放電灯を点灯させる
際、消灯時間の長短により放電灯の点灯過渡特性が異な
ることが知られている。このため従来では、特開平2−
68889号公報,特開平2−136342号公報等に
示すように、放電灯の始動時に最適な光量の立ち上がり
特性を得るために消灯時間を監視し、この消灯時間によ
り放電灯に加えるエネルギー量を変化させている。この
放電灯に加えるエネルギー量のパラメータとしては、放
電灯のランプ電圧、ランプ電流およびランプ電力がある
。また、上記の放電灯の点灯過渡特性を変化させるパラ
メータとしては、ランプ自体の性能(内部要因)により
上述の消灯時間が挙げられるが、車両用として用いる場
合には周囲の環境変化(外的要因)の影響も考慮する必
要がある。例えば−40℃〜+100℃の周囲温度の変
化、+8V〜+16Vの電源電圧の変動等が放電灯の点
灯過渡特性及び定常特性に何らかの影響を与えることが
知られている。このような変化の大きい非常に厳しい環
境のもとでは、消灯時間だけを最適な点灯制御のパラメ
ータとすることは本質的に無理があり、周囲環境に応じ
たリアルタイム処理ができない。2. Description of the Related Art When a discharge lamp such as an HID lamp is turned on, it is known that the lighting transient characteristics of the discharge lamp vary depending on the length of the turn-off time. For this reason, conventionally, JP-A-2-
As shown in Publication No. 68889, Japanese Patent Application Laid-Open No. 2-136342, etc., when starting a discharge lamp, the turn-off time is monitored in order to obtain the optimum light intensity rise characteristic, and the amount of energy applied to the discharge lamp is changed based on this turn-off time. I'm letting you do it. Parameters for the amount of energy added to the discharge lamp include lamp voltage, lamp current, and lamp power of the discharge lamp. In addition, parameters that change the lighting transient characteristics of the discharge lamp mentioned above include the above-mentioned turn-off time, which depends on the performance of the lamp itself (internal factors), but when used for vehicles, changes in the surrounding environment (external factors) ) must also be considered. For example, it is known that changes in ambient temperature from -40° C. to +100° C., fluctuations in power supply voltage from +8 V to +16 V, etc. have some influence on the lighting transient characteristics and steady-state characteristics of a discharge lamp. Under such a very harsh environment with large changes, it is essentially impossible to use the lights-off time as the only parameter for optimal lighting control, and real-time processing according to the surrounding environment cannot be performed.
【0003】また、放電灯のもつ光量は、該放電灯に加
えられるエネルギー量が等しくても個々のバラツキが大
きい。このため、車両のヘッドライトとして左右に取り
付けて使用する場合は、人の目が左右同じ明るさとして
認識できるように、光量の近い放電灯を製造工程で選別
して取り付ける必要がある。[0003] Furthermore, the amount of light provided by discharge lamps varies greatly among individual lamps even if the amount of energy applied to the discharge lamps is the same. Therefore, when used as left and right headlights for a vehicle, it is necessary to select and install discharge lamps with similar light amounts during the manufacturing process so that the human eye can perceive the left and right as having the same brightness.
【0004】0004
【発明が解決しようとする課題】従来の放電灯点灯装置
は以上のように構成されており、消灯時間により放電灯
に加えるエネルギー量を変化させているため、周囲の環
境変化に応じたリアルタイムな制御ができず、ユーザ本
体に立った適切な制御ができないという問題点があった
。また、車両用として使用する場合など、放電灯の特性
にバラツキがあるので左右の放電灯の明るさの違いによ
る違和感が生じ、したがって製造工程で選別して取り付
けなければならないという問題点があった。[Problems to be Solved by the Invention] The conventional discharge lamp lighting device is configured as described above, and the amount of energy applied to the discharge lamp is changed depending on the extinguishing time. There was a problem in that it was not possible to control the device, and it was not possible to perform appropriate control based on the user's needs. In addition, when used in vehicles, etc., the characteristics of discharge lamps vary, resulting in a sense of discomfort due to the difference in brightness between the left and right discharge lamps.Therefore, there was a problem in that they had to be selected and installed during the manufacturing process. .
【0005】この発明は上記のような問題点を解消する
ためになされたもので、周囲の環境変化に応じたリアル
タイムな制御ができ、ユーザ本位に立った制御が可能と
なり、また、双方の放電灯の明るさの違いによる違和感
を解消し、製造工程での選別を不要とする放電灯点灯装
置を得ることを目的としている。[0005] This invention was made to solve the above-mentioned problems, and enables real-time control in response to changes in the surrounding environment, user-oriented control, and The purpose of this invention is to eliminate the discomfort caused by differences in the brightness of electric lights and to obtain a discharge lamp lighting device that eliminates the need for selection in the manufacturing process.
【0006】[0006]
【課題を解決するための手段】この発明に係る放電灯点
灯装置は、次のように構成したものである。(1)放電
灯の光量を測定する光量測定部と、この交流測定部の測
定値に基づいて前記放電灯に加えるエネルギー量を制御
する制御部とを備えた。(2)各放電灯の光量を測定す
る光量測定部と、これらの光量測定部の測定値の差に基
づいて放電灯に加えるエネルギー量を制御する制御部と
を備えた。[Means for Solving the Problems] A discharge lamp lighting device according to the present invention is constructed as follows. (1) A light amount measurement section that measures the light amount of the discharge lamp, and a control section that controls the amount of energy applied to the discharge lamp based on the measurement value of the AC measurement section. (2) A light amount measurement section that measures the light amount of each discharge lamp, and a control section that controls the amount of energy to be applied to the discharge lamp based on the difference between the measured values of these light amount measurement sections.
【0007】[0007]
【作用】この発明の放電灯点灯装置においては、光量測
定部が放電灯の光量を測定し、制御部はその光量測定値
に基づいて放電灯に加えるエネルギー量を制御する。ま
た、光量測定部は各放電灯の光量を測定し、その測定値
の差に基づいて制御部が放電灯に加えるエネルギー量を
制御する。[Operation] In the discharge lamp lighting device of the present invention, the light amount measurement section measures the light amount of the discharge lamp, and the control section controls the amount of energy applied to the discharge lamp based on the measured light amount value. Further, the light amount measurement section measures the light amount of each discharge lamp, and the control section controls the amount of energy applied to the discharge lamp based on the difference between the measured values.
【0008】[0008]
【実施例】図1はこの発明の一実施例による放電灯点灯
装置の構成図であり、自動車など車両用として使用した
場合を示している。図において、1は車両の直流電源で
あるバッテリ、2はヘッドライトリフレクタ3を有した
ランプユニット内のHIDランプ(放電灯)4の点灯回
路で、DC−DCコンバータ、インバータ等から構成さ
れている。5は昇圧パルストランスTから成る昇圧回路
、6はインダクタL及びコンデンサCからなる共振回路
、7は上記HIDランプ4の光量を測定する光量測定部
で、ランプユニット内に配置した光センサ8と光ファイ
バ9で接続されている。なお、光センサ8は光量測定7
内に設け、HIDランプ4からの光を光ファイバ9を通
して光量測定部7内の光センサ8で受光するようにして
も良い。10は光量測定部7の測定値に基づいてHID
ランプ4に加えるエネルギー量を制御する制御部で、点
灯回路2を介してHIDランプ4のランプ電圧、ランプ
電流、ランプ電力等を変化させる。DESCRIPTION OF THE PREFERRED EMBODIMENTS FIG. 1 is a block diagram of a discharge lamp lighting device according to an embodiment of the present invention, and shows a case where the device is used in a vehicle such as an automobile. In the figure, 1 is a battery that is the DC power source of the vehicle, 2 is a lighting circuit for an HID lamp (discharge lamp) 4 in a lamp unit that has a headlight reflector 3, and is composed of a DC-DC converter, an inverter, etc. . Reference numeral 5 denotes a step-up circuit consisting of a step-up pulse transformer T, 6 a resonant circuit consisting of an inductor L and a capacitor C, and 7 a light amount measurement section for measuring the light amount of the HID lamp 4, which connects the light sensor 8 and the light placed inside the lamp unit. Connected by fiber 9. Note that the optical sensor 8 is used to measure the amount of light 7.
The light from the HID lamp 4 may be received by the optical sensor 8 in the light amount measuring section 7 through the optical fiber 9. 10 is an HID based on the measured value of the light amount measuring section 7.
A control unit that controls the amount of energy applied to the lamp 4 changes the lamp voltage, lamp current, lamp power, etc. of the HID lamp 4 via the lighting circuit 2.
【0009】上記のように構成された点灯装置において
、HIDランプ4の点灯スイッチが操作されると、不図
示の高圧発生回路が動作してHIDランプ4に高電圧が
印加される。そして、HIDランプ4が放電を開始する
と昇圧回路5によって昇圧された点灯回路2の出力(高
周波電力)がHIDランプ4に供給され、HIDランプ
4は点灯し続ける。その際、光量測定部7はHIDラン
プ4の光量を監視しており、その測定値に基づいて制御
部10はHIDランプ4に加えるエネルギー量を制御し
、最適な光量立ち上りが得られるようにしている。
したがって、周囲温度の変化、電源電圧変動等の周囲の
環境変化に応じたリアルタイムな制御ができ、ユーザ本
位に立った適切な制御が可能となる。なおこの時、HI
Dランプ4のエネルギー量の制御のパラメータとして前
述の消灯時間を考慮することも可能であり、より適切な
制御を行うことができる。In the lighting device configured as described above, when the lighting switch of the HID lamp 4 is operated, a high voltage generating circuit (not shown) is operated and a high voltage is applied to the HID lamp 4. Then, when the HID lamp 4 starts discharging, the output (high frequency power) of the lighting circuit 2 boosted by the booster circuit 5 is supplied to the HID lamp 4, and the HID lamp 4 continues to light. At this time, the light amount measurement section 7 monitors the light amount of the HID lamp 4, and based on the measured value, the control section 10 controls the amount of energy to be applied to the HID lamp 4 so that the optimum light amount rise is obtained. There is. Therefore, real-time control can be performed in response to changes in the surrounding environment such as changes in ambient temperature and power supply voltage fluctuations, and appropriate user-oriented control is possible. At this time, HI
It is also possible to consider the above-mentioned extinguishing time as a parameter for controlling the energy amount of the D lamp 4, and more appropriate control can be performed.
【0010】図2はこの発明の他の実施例を示す構成図
であり、図1と同一符号は同一構成要素を示している。
この実施例は、車両(自動車)の左右のヘッドライトに
適用したもので、左右のHIDランプ4,4毎に点灯回
路2,2、昇圧回路5,5、共振回路6,6及び光量測
定部7,7が設けられている。また図中、11は各光量
測定部7,7の測定値の差を検出する光量差検出部、1
2はその測定値の差に基づいて各HIDランプ4,4の
制御量を補正する補正部で、制御部10はその補正値に
従ってHIDランプ4,4に加えるエネルギー量を制御
する。FIG. 2 is a block diagram showing another embodiment of the present invention, and the same reference numerals as in FIG. 1 indicate the same components. This embodiment is applied to the left and right headlights of a vehicle (automobile), and each of the left and right HID lamps 4 has a lighting circuit 2, 2, a booster circuit 5, 5, a resonance circuit 6, 6, and a light amount measuring unit. 7,7 are provided. Further, in the figure, reference numeral 11 denotes a light amount difference detection unit that detects the difference between the measured values of the respective light amount measurement units 7, 7;
Reference numeral 2 denotes a correction section that corrects the control amount of each HID lamp 4, 4 based on the difference between the measured values, and the control section 10 controls the amount of energy to be applied to the HID lamps 4, 4 according to the correction value.
【0011】このように構成された点灯装置において、
左右のHIDランプ4,4が上述のようにして点灯され
ると、光量差検出部11は各々の光量測定部7,7の測
定値の差を検出し、左右のHIDランプ4,4の光量差
を判別する。この判別結果(検出値)は補正部12に送
られ、ここでHIDランプ4,4の光量差がなくなるよ
うにHIDランプ4,4の定格内でエネルギー量の補正
値が決定される。そして、制御部10はその補正値に従
ってHIDランプ4,4に加えるエネルギー量を変化さ
せる。これにより、左右の双方のHIDランプ4,4の
光量が等しくなり、同じ明るさとなる。したがって、運
転者が感じる明るさの違いによる違和感が解消されると
共に、製造工程で選別して取り付ける必要がなくなり、
低コスト化を図ることができる。[0011] In the lighting device configured as described above,
When the left and right HID lamps 4, 4 are turned on as described above, the light intensity difference detection unit 11 detects the difference in the measured values of the respective light intensity measurement units 7, 7, and determines the light intensity of the left and right HID lamps 4, 4. Determine the difference. This determination result (detected value) is sent to the correction unit 12, where a correction value for the amount of energy is determined within the rating of the HID lamps 4, 4 so that the difference in light amount between the HID lamps 4, 4 is eliminated. Then, the control unit 10 changes the amount of energy applied to the HID lamps 4, 4 according to the correction value. As a result, the amount of light from both the left and right HID lamps 4, 4 becomes equal, resulting in the same brightness. Therefore, the discomfort felt by drivers due to differences in brightness is eliminated, and there is no need to select and install them during the manufacturing process.
Cost reduction can be achieved.
【0012】0012
【発明の効果】以上のように、この発明によれば、放電
灯の光量を測定し、その測定値に基づいて放電灯に加え
るエネルギー量を補正するようにしたため、周囲の環境
変化に応じたリアルタイムな制御ができ、ユーザ本体に
立った制御が可能になり、最適な光量立ち上がりを得る
ことができるという効果がある。また、各放電灯の光量
の測定値の差に基づいて放電灯に加えるエネルギー量を
制御するようにしたため、双方の放電灯の明るさの違い
による違和感が解消され、製造工程で選別する必要がな
くなり、低コスト化を図ることができるという効果があ
る。[Effects of the Invention] As described above, according to the present invention, the light intensity of the discharge lamp is measured and the amount of energy applied to the discharge lamp is corrected based on the measured value, so that the amount of energy applied to the discharge lamp is corrected according to changes in the surrounding environment. Real-time control is possible, control from the user's perspective is possible, and the optimum light intensity rise can be obtained. In addition, the amount of energy applied to the discharge lamps is controlled based on the difference in the measured light intensity of each discharge lamp, eliminating the discomfort caused by the difference in brightness between the two discharge lamps and eliminating the need for sorting during the manufacturing process. This has the effect of reducing costs.
【図1】この発明の一実施例を示す構成図[Fig. 1] A configuration diagram showing an embodiment of the present invention.
【図2】この
発明の他の実施例を示す構成図[Fig. 2] A configuration diagram showing another embodiment of the present invention.
1 点灯回路 4 HIDランプ(放電灯) 7 光量測定部 8 光センサ 9 光ファイバ 10 制御部 11 光量差検出部 12 補正部 なお、図中同一符号は同一または相当部分を示す。 1. Lighting circuit 4 HID lamp (discharge lamp) 7 Light amount measurement section 8. Optical sensor 9 Optical fiber 10 Control section 11 Light amount difference detection section 12 Correction section Note that the same reference numerals in the figures indicate the same or corresponding parts.
Claims (2)
、この光量測定部の測定値に基づいて前記放電灯に加え
るエネルギー量を制御する制御部とを備えたことを特徴
とする放電灯点灯装置。1. A discharge lamp comprising: a light amount measurement section that measures the light amount of the discharge lamp; and a control section that controls the amount of energy applied to the discharge lamp based on the measured value of the light amount measurement section. lighting device.
と、これらの光量測定部の測定値の差に基づいて放電灯
に加えるエネルギー量を制御する制御部とを備えたこと
を特徴とする放電灯点灯装置。2. A light amount measuring section that measures the light amount of each discharge lamp, and a control section that controls the amount of energy applied to the discharge lamp based on the difference between the measured values of these light amount measuring sections. discharge lamp lighting device.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP1538391A JP2674324B2 (en) | 1991-02-06 | 1991-02-06 | Discharge lamp lighting device |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP1538391A JP2674324B2 (en) | 1991-02-06 | 1991-02-06 | Discharge lamp lighting device |
Publications (2)
Publication Number | Publication Date |
---|---|
JPH04271935A true JPH04271935A (en) | 1992-09-28 |
JP2674324B2 JP2674324B2 (en) | 1997-11-12 |
Family
ID=11887231
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP1538391A Expired - Fee Related JP2674324B2 (en) | 1991-02-06 | 1991-02-06 | Discharge lamp lighting device |
Country Status (1)
Country | Link |
---|---|
JP (1) | JP2674324B2 (en) |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
WO2012041692A2 (en) | 2010-09-30 | 2012-04-05 | Automotive Lighting Reutlingen Gmbh | Open-loop and closed-loop control device for a gas discharge lamp of a motor vehicle headlight |
-
1991
- 1991-02-06 JP JP1538391A patent/JP2674324B2/en not_active Expired - Fee Related
Cited By (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
WO2012041692A2 (en) | 2010-09-30 | 2012-04-05 | Automotive Lighting Reutlingen Gmbh | Open-loop and closed-loop control device for a gas discharge lamp of a motor vehicle headlight |
WO2012041692A3 (en) * | 2010-09-30 | 2012-10-04 | Automotive Lighting Reutlingen Gmbh | Open-loop and closed-loop control device for a gas discharge lamp of a motor vehicle headlight |
CN103141161A (en) * | 2010-09-30 | 2013-06-05 | 汽车照明罗伊特林根有限公司 | Control/adjusting device for a gas discharge lamp of a motor vehicle headlight |
Also Published As
Publication number | Publication date |
---|---|
JP2674324B2 (en) | 1997-11-12 |
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Legal Events
Date | Code | Title | Description |
---|---|---|---|
LAPS | Cancellation because of no payment of annual fees |