The invention discloses an automobile lamp light source time division multiplexing electronic control system which controls light emitting of an LED through a time division multiplexing DCDC converter, and is composed of an input protection circuit unit, a filter, the DCDC converter, an LDO, a converter, an MCU and a time division control unit, the time division multiplexing electronic control system is connected with a vehicle control sensor and an LED light emitting unit of an automobile lamp, and the input protection circuit unit, the filter, the DCDC converter, the LDO, the converter, the MCU and the time division control unit are connected. By means of the ingenious design, the LED light-emitting control circuit can adapt to vehicle lamp systems with light sources such as vehicle near and high beam lamps, daytime running lamps, position lamps and steering lamps which take the LEDs as light-emitting sources to control the LEDs to emit light in a time-sharing mode, the parallel connection mode of time-sharing multiplexing units can be changed into the series connection mode, and the DCDC converter is suitable for being changed into the constant voltage source mode to achieve time-sharing multiplexing light-emitting control. Light emitting of different vehicle functions in one or more scenes can be achieved, and application of light emitting characteristics of other LED suppliers can be achieved by changing the working frequency, the LED working current and the duty ratio.

    本发明公开了一种汽车灯具光源分时复用电子控制系统,通过分时复用DCDC转换器,控制LED发光,由输入保护电路单元、滤波器、DCDC转换器、LDO、转换器、MCU、分时控制单元组成,分时复用电子控制系统分别与车辆控制传感器和车灯的LED发光单元相连,通过巧妙的设计,可适应以LED作为发光源的车辆近、远光灯,日行灯,位置灯,转向灯等光源分时控制LED发光的车辆灯具系统,可改变“分时复用单元”的并联方式,改为串联方式,适用DCDC转换器更改为恒压源方式实现分时复用控制发光,可实现一种或多种场景下的不同车辆功能的灯光发光,可改变工作频率,LED工作电流,占空比实现其他LED供应商的发光特性的应用。


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    Title :

    Automobile lamp light source time division multiplexing electronic control system


    Additional title:

    汽车灯具光源分时复用电子控制系统


    Contributors:
    XU SHAOWEI (author) / YU DONGXU (author)

    Publication date :

    2022-04-08


    Type of media :

    Patent


    Type of material :

    Electronic Resource


    Language :

    Chinese


    Classification :

    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



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