JPS61138641U - - Google Patents
Info
- Publication number
- JPS61138641U JPS61138641U JP2129385U JP2129385U JPS61138641U JP S61138641 U JPS61138641 U JP S61138641U JP 2129385 U JP2129385 U JP 2129385U JP 2129385 U JP2129385 U JP 2129385U JP S61138641 U JPS61138641 U JP S61138641U
- Authority
- JP
- Japan
- Prior art keywords
- motor
- optical axis
- vehicle body
- binary
- gray code
- 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
- 230000003287 optical effect Effects 0.000 claims description 11
- 238000001514 detection method Methods 0.000 claims description 3
- 238000004804 winding Methods 0.000 claims 4
- 238000010586 diagram Methods 0.000 description 5
- 230000002265 prevention Effects 0.000 description 1
Description
添付図は本考案による前照灯の光軸調整装置を
説明するための図であつて、第１図は具体的な一
例を示す回路構成図、第２図は第１図に示す光軸
駆動装置の構成図、第３図は第１図に示すエンコ
ーダの構成図、第４図は本考案の第２の実施例を
示す回路構成図である。
１，３…エンコーダ、２，４…グレイコードー
２進デコーダ回路、５…減算器、６…２進―１０
進デコーダ回路、７，１３…逆流防止用ダイオー
ド、８，１４…光軸検出スイツチ、９，１５…モ
ーター駆動回路、１０，１０′，１６，１６′…
モーター、１１，１７…光軸駆動装置、１２，１
８…前照灯、Ｒｙ１〜Ｒｙ４…リレー、Ｐ１〜Ｐ
４…接点。
The attached drawings are diagrams for explaining the optical axis adjustment device for a headlamp according to the present invention, in which FIG. 1 is a circuit configuration diagram showing a specific example, and FIG. 2 is a diagram showing the optical axis drive shown in FIG. 1. FIG. 3 is a block diagram of the encoder shown in FIG. 1, and FIG. 4 is a circuit block diagram showing a second embodiment of the present invention. 1, 3... Encoder, 2, 4... Gray code-binary decoder circuit, 5... Subtractor, 6... Binary-10
Decimal decoder circuit, 7, 13... Backflow prevention diode, 8, 14... Optical axis detection switch, 9, 15... Motor drive circuit, 10, 10', 16, 16'...
Motor, 11, 17... Optical axis drive device, 12, 1
8... Headlight, Ry 1 - Ry 4 ... Relay, P 1 - P
4 ...Contact.
Claims (1)
グレイコード信号を検出出力する複数の車体傾き
検出器と、該検出器によるグレイコード信号を２
進数に変換するグレイコード―２進数デコーダ回
路と、前記複数の車体傾き検出器で検出し、デコ
ーダされた信号を減算する減算器と、該減算器の
出力信号を１０進数に変換する２進―１０進デコ
ーダ回路と、モーターの回転駆動により前照灯の
光軸方向を変えるための光軸駆動装置と、光軸方
向の変化に対応して複数の接点が順次切換えるよ
うにした光軸検出スイツチと、該光軸検出スイツ
チの位置と前記２進―１０進デコーダの出力信号
とにより、前記モーターを正転または逆転させる
と共に、モーター停止制御時に該モーターの巻線
を短絡制御するスイツチング回路を具備したモー
ター駆動回路とから成り、前記モーターが停止制
御された際、前記スイツチング回路によりモータ
ーの巻線を短絡し、モーターに強制制動がかける
ように構成したことを特徴とする前照灯の光軸調
整装置。 (2) 前記モーターは正転電機子（界磁）巻線と
逆転電機子（界磁）巻線とから構成される実用新
案登録請求の範囲第１項に記載の前照灯の光軸調
整装置。[Scope of Claim for Utility Model Registration] (1) A plurality of vehicle body tilt detectors installed at the front and rear of the vehicle body that detect and output gray code signals according to the vehicle body tilt, and two gray code signals from the detectors.
Gray code that converts into a decimal number - a binary decoder circuit, a subtracter that subtracts the decoded signal detected by the plurality of vehicle body tilt detectors, and a binary number that converts the output signal of the subtracter into a decimal number. A decimal decoder circuit, an optical axis drive device that changes the optical axis direction of the headlight by rotating the motor, and an optical axis detection switch that sequentially switches multiple contacts in response to changes in the optical axis direction. and a switching circuit that rotates the motor forward or reverse depending on the position of the optical axis detection switch and the output signal of the binary-decimal decoder, and also controls the windings of the motor to be short-circuited during motor stop control. an optical axis of a headlamp, characterized in that when the motor is controlled to stop, the switching circuit short-circuits the windings of the motor to apply forced braking to the motor. Adjustment device. (2) Optical axis adjustment of a headlamp according to claim 1, wherein the motor is composed of a forward rotating armature (field) winding and a reverse rotating armature (field) winding. Device.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2129385U JPS61138641U (en) | 1985-02-19 | 1985-02-19 |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2129385U JPS61138641U (en) | 1985-02-19 | 1985-02-19 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPS61138641U true JPS61138641U (en) | 1986-08-28 |
Family
ID=30512555
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP2129385U Pending JPS61138641U (en) | 1985-02-19 | 1985-02-19 |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS61138641U (en) |
Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5582919A (en) * | 1978-12-19 | 1980-06-23 | Toshiba Corp | Encoder |
| JPS5926339A (en) * | 1982-08-04 | 1984-02-10 | Koito Mfg Co Ltd | Optical axis adjuster for headlight of vehicle |
-
1985
- 1985-02-19 JP JP2129385U patent/JPS61138641U/ja active Pending
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5582919A (en) * | 1978-12-19 | 1980-06-23 | Toshiba Corp | Encoder |
| JPS5926339A (en) * | 1982-08-04 | 1984-02-10 | Koito Mfg Co Ltd | Optical axis adjuster for headlight of vehicle |
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