JP2000043638A

JP2000043638A - HID lighting control method

Info

Publication number: JP2000043638A
Application number: JP21743998A
Authority: JP
Inventors: Shusaku Sato; 周作佐藤; Masato Okamoto; 政人岡本
Original assignee: Stanley Electric Co Ltd
Current assignee: Stanley Electric Co Ltd
Priority date: 1998-07-31
Filing date: 1998-07-31
Publication date: 2000-02-15

Abstract

(57)【要約】（修正有）【課題】メタルハライドヘッドランプ（ＨＩＤ）の寿命
劣化を少なくする点灯制御方法を提供する。【解決手段】消灯状態からのパッシング時のＨＩＤのＯ
Ｎ−ＯＦＦによる点滅点灯を連続点灯にかえ、メタルハ
ライドランプ等の可動部をパッシング信号と同期させて
始動しクロック信号が入るまでメタルハライドランプ等
の可動部はＯＮ−ＯＦＦしつづけることで、パッシング
を行ない課題を解決するＨＩＤのパッシング制御方法で
ある。また、可動部が、リフレクタ、ＨＩＤ光源、光源
を覆う遮蔽版の内少なくともどれか一つであるか、若し
くはそれらの組み合わせであり、パッシング信号が入ら
なくなっても、一定時間ＨＩＤの点灯を保持させ、一定
時間を経過した後ライトスイッチのＯＮ−ＯＦＦトリガ
−等のクロック信号が入ってからＨＩＤが消灯するパッ
シング制御方法を提供する。 (57) [Summary] (with correction) [PROBLEMS] To provide a lighting control method for reducing deterioration of the life of a metal halide headlamp (HID). SOLUTION: OID of HID at the time of passing from a light-off state.
The flashing by N-OFF is changed to continuous lighting, and the moving part such as the metal halide lamp is started in synchronization with the passing signal, and the moving part such as the metal halide lamp is continuously turned on and off until the clock signal is inputted, thereby performing the passing. This is an HID passing control method that solves the problem. Further, the movable portion is at least one of a reflector, an HID light source, and a shielding plate covering the light source, or a combination thereof, and keeps the HID on for a certain period of time even if the passing signal does not enter. The present invention provides a passing control method in which the HID is turned off after a clock signal such as an ON-OFF trigger of a light switch is input after a predetermined time has elapsed.

Description

【発明の詳細な説明】図１に本発明のＨＩＤ点灯制御回
路のＨＩＤ自動消灯のパッシング点灯モ−ドを示す。図
２に本発明のＨＩＤ点灯制御回路のＨＩＤマニュアル消
灯のパッシング点灯モ−ドを示す。又、図３には、本発
明のＨＩＤ点灯制御回路の一例を示す。DETAILED DESCRIPTION OF THE INVENTION FIG. 1 shows a passing lighting mode of the HID automatic turning off of the HID lighting control circuit of the present invention. FIG. 2 shows a passing lighting mode of the HID manual turning off of the HID lighting control circuit of the present invention. FIG. 3 shows an example of the HID lighting control circuit of the present invention.

【０００９】図１に示す第一の実施例は消灯状態からの
パッシングを行うときに、パッシング信号に同期して、
２灯式の場合は、可動部のみがＯＮ−ＯＦＦし、４灯式
の場合はタイプ１ハロゲンのみがＯＮ−ＯＦＦ動作をす
る。ＨＩＤは、パッシング信号の立ち上りと同時に点灯
し、パッシング信号に応じて点滅することはなく点灯を
保持し、パッシング信号の出力後に、ある一定の時間Ｔ
（ｓｅｃ）が経過しても、次のパッシング信号が入らな
い場合はパッシングと終了と判断し消灯する。ある一定
の時間は、例えばパッシング信号の最初の一パルスでコ
ンデンサに充電を始めるような、ごく一般に用いられて
いるタイマ−で実現出来る。In the first embodiment shown in FIG. 1, when performing passing from the light-off state, in synchronization with the passing signal,
In the case of the two-lamp type, only the movable part is turned on and off, and in the case of the four-lamp type, only the type 1 halogen is turned on and off. The HID is turned on at the same time as the rising of the passing signal, does not blink in response to the passing signal, holds the lighting, and after the passing of the passing signal, for a certain period of time T
If the next passing signal is not input even after the elapse of (sec), it is determined that the passing is completed and the light is turned off. The certain period of time can be realized by a commonly used timer which starts charging the capacitor at the first pulse of the passing signal, for example.

【００１０】図２に示す本発明の第２の実施例は、消灯
状態からのＨＩＤのパッシング方法そのものは、第１の
実施例同様でＨＩＤが、パッシング信号に応じて点滅す
ることはなく点灯を保持しパッシング信号にマニュアル
でクロックを入れることにより消灯する。In the second embodiment of the present invention shown in FIG. 2, the HID passing method from the light-off state is the same as that of the first embodiment, and the HID is turned on without blinking in response to the passing signal. The light is turned off by manually inputting a clock to the holding and passing signal.

【００１１】詳細には、前記クロックは、ランプスイッ
チなどを一回ＯＮ−ＯＦＦすることによるトリガ−等で
ある。また、第一、第二実施例ともにＨＩＤを連続点灯
させたままでパッシングを可能としておりＨＩＤの点滅
点灯による寿命劣化を最小限に押さえている。Specifically, the clock is a trigger or the like by turning on and off a lamp switch or the like once. Also, in both the first and second embodiments, passing is possible while the HID is continuously turned on, and the life deterioration due to the blinking of the HID is minimized.

【００１２】[0012]

【発明の効果】以上のように、本発明はＨＩＤの消灯状
態からの消灯状態からのパッシング制御方法において、
パッシング信号が入ると同時にＨＩＤが点灯状態とし、
可動部をパッシング信号に同期させて動かしパッシング
を行っているので、ＨＩＤの連続点灯によるパッシング
を可能としており点滅点灯によるパッシングに比べＨＩ
Ｄの寿命が、格段に向上する。As described above, the present invention relates to a method for controlling passing from an extinguished state of an HID to an extinguishing state.
HID is turned on at the same time as passing signal is input,
Since the moving part is moved in synchronization with the passing signal to perform the passing, the passing by the continuous lighting of the HID is enabled.
The life of D is significantly improved.

[Brief description of the drawings]

【図１】本発明に、係るＨＩＤ点灯制御回路のパッシン
グ点灯モ−ドを示す。FIG. 1 shows a passing lighting mode of an HID lighting control circuit according to the present invention.

【図２】本発明に、係るＨＩＤ点灯制御回路のバッシン
グ点灯モ−ドを示す。FIG. 2 shows a bashing lighting mode of the HID lighting control circuit according to the present invention.

【図３】本発明に、係るＨＩＤ点灯制御回路の一例を示
す。FIG. 3 shows an example of an HID lighting control circuit according to the present invention.

【図４】従来のＨＩＤ点灯制御回路のパッシング点灯モ
−ドを示す。FIG. 4 shows a passing lighting mode of a conventional HID lighting control circuit.

Claims

[Claims]

1. A method of controlling passing from a state in which a metal halide headlight is turned off, wherein a metal halide lamp is turned on at the same time as a passing signal is input, and a movable portion is moved in synchronization with the passing signal to perform a passing operation until a clock signal is input. A passing control method for a metal halide headlight, wherein the lamp is kept lit.

2. The method according to claim 1, wherein the movable portion is a reflector, an HID light source,
Whether it is at least one of the shielding plates covering the light source,
2. The method for controlling the passing of a metal halide headlight according to claim 1, wherein the method is a combination thereof.

3. The method according to claim 1, wherein the clock signal is a signal of a write switch.
2. The method according to claim 1, wherein the trigger is an N-OFF trigger. BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a method of controlling the passing of a headlight for a vehicle having a metal halide lamp (hereinafter referred to as "HID"). The present invention relates to a control means, and relates to switching of a light distribution pattern for passing control, and more specifically, to minimize the life degradation due to HID passing. 2. Description of the Related Art Conventionally, vehicle headlamps are roughly classified into two-light headlights and four-light headlights. HID in recent years
With the development of HIDs, vehicles equipped with brighter HIDs utilizing arc discharge have also begun to appear from conventional halogen lamps. FIG. 3 shows a conventional passing lighting mode using a two-lamp headlight and a conventional passing lighting mode using a four-lamp headlight. As can be seen from FIG. 3, in the passing control method from the turning-off state of the headlight using a normal two-lamp HID, the HID repeatedly turns on and off in synchronization with the passing signal. For example, a method in which part or all of a reflector is used as a movable part to block irradiation of light in front of the light,
Or, the mechanically movable part is a method such as a method in which the shielding plate comes out in front of the light source to block the irradiation of light, or a method in which the light source itself stops moving and irradiates the light forward.
Repeat N-OFF. In the case of the four-lamp type, the HID is repeatedly turned on and off instead of the movable part, and the halogen lamp is repeatedly turned on and off instead of the movable part. [0004] However, it is conceivable that the above-described conventional method of controlling the passing of the HID from the light-off state of the HID may cause the life of the HID to deteriorate. Because, generally, the life time of the HID is shorter in blinking lighting than in continuous lighting. Also, it is found that the flashing time when the pipe is cold (cold start) is shorter than the flashing when the pipe is warm (hot start), like passing from the light-off state. ing. [0005] Therefore, when passing is performed from a light-off state as in the conventional case, the HID blinks in synchronization with the passing signal, which leads to deterioration of the life. According to the present invention, the HI at the time of passing from the light-off state as described above is provided.
Passing is performed by changing blinking lighting by ON / OFF of D to continuous lighting. SUMMARY OF THE INVENTION The present invention relates to a method of controlling passing from the off state of the HID, wherein the HID is turned on simultaneously with the passing of the passing signal, and the movable part is moved in synchronization with the passing signal. Passing is performed. An object of the present invention is to provide a passing control method from the off state of the HID, in which the HID is turned off, and the movable portion is moved in synchronization with the passing signal to perform the passing. Further, the movable portion is a reflector, an HID
A light source, at least one of a shielding plate covering the light source, or a combination thereof; even if the passing signal does not enter, the lighting of the HID is held for a certain time, and the light is turned on after a certain time has passed. Switch ON
HID after clock signal such as -OFF trigger-
Is turned off. [0008]