JPH0478036U - - Google Patents
Info
- Publication number
- JPH0478036U JPH0478036U JP12205890U JP12205890U JPH0478036U JP H0478036 U JPH0478036 U JP H0478036U JP 12205890 U JP12205890 U JP 12205890U JP 12205890 U JP12205890 U JP 12205890U JP H0478036 U JPH0478036 U JP H0478036U
- Authority
- JP
- Japan
- Prior art keywords
- circuit
- abnormality detection
- motor drive
- headlight
- drive circuit
- 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
- 230000005856 abnormality Effects 0.000 claims description 5
- 238000001514 detection method Methods 0.000 claims description 5
- 238000010586 diagram Methods 0.000 description 5
Description
第１図は本考案に係る車載用ヘツドライトアク
チユエータの一実施例を示す回路図、第２図は同
実施例におけるスイツチング回路及び異常検出回
路の構成を示す回路図、第３図はスイツチング回
路の他の構成例を示す回路図、第４図は従来例を
示す回路図である。
１……モータ、２……モータ駆動回路、３……
接点部、４……回り込み防止用ダイオード、５…
…電源端子、６……制御端子、７……制御線、８
……切替えスイツチ、９……スイツチング回路、
１０……異常検出回路、Ｑ１，Ｑ２……トランジ
スタ、Ｒ１〜Ｒ６……抵抗、Ｃ１〜Ｃ１３……ゲ
ート回路、Ｎ１〜Ｎ６……インバータ。
Fig. 1 is a circuit diagram showing an embodiment of an in-vehicle headlight actuator according to the present invention, Fig. 2 is a circuit diagram showing the configuration of a switching circuit and an abnormality detection circuit in the same embodiment, and Fig. 3 is a circuit diagram showing the configuration of a switching circuit and an abnormality detection circuit in the same embodiment. FIG. 4 is a circuit diagram showing another example of the configuration of the circuit, and FIG. 4 is a circuit diagram showing a conventional example. 1...Motor, 2...Motor drive circuit, 3...
Contact part, 4... Diode for preventing wraparound, 5...
...Power terminal, 6...Control terminal, 7...Control line, 8
...changeover switch, 9...switching circuit,
10...Abnormality detection circuit, Q1 , Q2 ...Transistor, R1 - R6 ...Resistor, C1 - C13 ...Gate circuit, N1 - N6 ...Inverter.
Claims (1)
御線及び切替えスイツチを介して択一的に接地す
ることにより、運転モード選択の制御命令をモー
タ駆動回路に付与し、モータの回転駆動によりヘ
ツドライト支点を中心に前後方向に回動させる車
載用ヘツドライトアクチユエータにおいて、制御
線の対アース電位を監視し、その組合せによる論
理判定でアース電位の本数が１本か否かを検出す
る異常検出回路と、前記接点部とモータ駆動回路
の間に設けられ、この異常検出回路の出力でオン
、オフを制御されるスイツチング回路とを備えた
ことを特徴とする車載用ヘツドライトアクチユエ
ータ。 By selectively grounding contact points set at multiple angles via multiple control lines and changeover switches, a control command for operating mode selection is given to the motor drive circuit, and the headlight is activated by rotating the motor. In an automotive headlight actuator that rotates back and forth around a fulcrum, the abnormality detection method monitors the potential of the control lines relative to the ground, and uses logical judgment based on the combination to detect whether the number of lines at ground potential is one. An in-vehicle headlight actuator comprising: a circuit; and a switching circuit that is provided between the contact portion and the motor drive circuit and is turned on and off by the output of the abnormality detection circuit.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP12205890U JPH0736837Y2 (en) | 1990-11-21 | 1990-11-21 | Automotive headlight actuator |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP12205890U JPH0736837Y2 (en) | 1990-11-21 | 1990-11-21 | Automotive headlight actuator |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPH0478036U true JPH0478036U (en) | 1992-07-08 |
| JPH0736837Y2 JPH0736837Y2 (en) | 1995-08-23 |
Family
ID=31869863
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP12205890U Expired - Lifetime JPH0736837Y2 (en) | 1990-11-21 | 1990-11-21 | Automotive headlight actuator |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH0736837Y2 (en) |
-
1990
- 1990-11-21 JP JP12205890U patent/JPH0736837Y2/en not_active Expired - Lifetime
Also Published As
| Publication number | Publication date |
|---|---|
| JPH0736837Y2 (en) | 1995-08-23 |