汽车前照灯昏暗自动发光及自动延时控制装置研究

摘要

A kind of automobile headlamp automatic light and dark time delay control device is introduced in this paper, which can make the headlight working at night emit dim light automatically when the ignition switch K1 is switched on and close the headlight K3 is switched off,and can keep the headlamp still work for a while when the ignition switch K1 the headlight switch K3 are switched off. The working principle of the automatic time delay control circuit is analyzed.%介绍一种汽车前照灯昏暗自动发光及自动延时控制装置，主要包括：在接通点火开关K1和关闭前照灯开关K3后，在夜晚或在黑暗中行驶时可使前照灯工作的昏暗自动发光电路；在关闭点火开关K1和前照灯开关K3后仍可维持前照灯延时工作的自动延时控制电路，并分析其工作原理。实践证明，该控制装置实用可靠、系统运行平稳，、故障率极低。