PROBLEM TO BE SOLVED: To improve visibility of a turn lamp installed together with another lamp (DRL, for example).SOLUTION: A lighting control device of a lighting fixture for a vehicle, which is a device for controlling a lighting state of a lighting fixture for a vehicle, includes: (b) a switch M1 connected between a power source and the lighting fixture for a vehicle; (c) a switch control part for controlling the switch to an open state when an input signal from the outside is a relatively high first potential, and controlling the switch to a closed state when the input signal is a relatively low second potential; and (d) a fall detection part U1 for supplying a signal of the first potential to the switch control part only for a predetermined period of time when the fall detection part U1 detects the fall of the input signal from the outside.
【課題】他のランプ(例えばDRL)と併設されるターンランプの視認性を向上させる。【解決手段】車両用灯具の点灯状態を制御する装置であって、(b)電源と車両用灯具の間に接続されたスイッチM1と、(c)外部からの入力信号が相対的に高い第1電位のときにスイッチを開状態に制御し、相対的に低い第2電位のときにスイッチを閉状態に制御するスイッチ制御部と、(d)外部からの入力信号の立ち下がりを検出したときに第1電位の信号を所定期間だけスイッチ制御部へ供給する立下り検出部U1とを含む、車両用灯具の点灯制御装置である。【選択図】図1
LIGHTING CONTROL DEVICE OF LIGHTING FIXTURE FOR VEHICLE AND LIGHTING FIXTURE SYSTEM FOR VEHICLE
車両用灯具の点灯制御装置、車両用灯具システム
2015-06-25
Patent
Electronic Resource
Japanese
IPC: | B60Q ARRANGEMENT OF SIGNALLING OR LIGHTING DEVICES, THE MOUNTING OR SUPPORTING THEREOF OR CIRCUITS THEREFOR, FOR VEHICLES IN GENERAL , Anordnung von Signal- oder Beleuchtungsvorrichtungen, deren Einbau oder Halterung oder deren Schaltkreise bei Fahrzeugen allgemein |
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