The invention provides an automobile headlamp temperature control method which comprises the following steps that A, an automobile headlamp is powered on, and the current value of the headlamp keeps constant i output; B, the ambient temperature T of the headlamp is read, when the temperature T rises to a threshold value X, the current of the headlamp is gradually reduced to a set value I in unit time S, the brightness of the headlamp is reduced accordingly, and I is smaller than i; C, the ambient temperature T of the headlamp is read, when the temperature is reduced to a safety value Y, the current of the headlamp is gradually increased to a set value i in unit time S, and the brightness of the headlamp is increased accordingly, Y< X; D, the ambient temperature T of the headlamp is read, and the steps B and C are repeated. According to the method, the brightness of the automobile headlamp is slowly reduced or increased by slowly reducing or increasing the current of the automobile headlamp, so that a driver can slowly adapt to the brightness change during night driving, the situation that the observation effect of the driver is influenced by sudden change of the lamplight brightness is avoided, and the safety of night driving is improved.
本发明提供了一种汽车大灯温控方法,包括以下步骤:A、汽车大灯通电,大灯电流值保持i恒定输出;B、读取大灯环境温度T,当温度T升高至阈值X时,大灯电流在单位时间S内逐渐降低至设定值I,大灯亮度随之降低,I<i;C、读取大灯环境温度T,当温度降低至安全值Y时,大灯电流在单位时间S内逐渐上升至设定值i,大灯亮度随之升高,Y<X;D、读取大灯环境温度T,重复步骤B、C。上述方法通过缓慢降低或升高汽车大灯的电流以实现汽车大灯亮度的缓慢降低或升高,这样驾驶人员夜间行车时可以缓慢适应亮度的变化,避免灯光亮度的突然变化影响驾驶人员的观察效果,提升夜间行车的安全性。
Automobile headlamp temperature control method
汽车大灯温控方法
2020-11-03
Patent
Electronic Resource
Chinese
IPC: | H05B ELECTRIC HEATING , Elektrische Heizung / 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 |
Automobile headlamp, headlamp adjusting device and automobile
European Patent Office | 2023
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