机车照明控制系统由两个亮度传感器和一个主控制器组成，可以根据车厢内部的光强自动调节LED照明灯具的亮度。亮度传感器安装在车厢的两侧，检测车厢内部光强；主控制器安装在每节车厢的控制柜内，通过PWM输出模块与LED驱动电路的调光模块相连，对LED灯光的亮度进行实时调节，节约了列车照明用电量，使车厢内的照明实现智能化、节能化，提高了乘客乘车舒适度的同时也减轻了列车工作人员需手动调节灯光的工作负担。

    The locomotive lighting control system is composed of two light sensors and a main controller, which can adjust the brightness of LED lighting lamps automatically according to the light intensity of the compartment's interior. Light sensors are installed on both sides of the compartment to detect the interior light intensity. The main controller is installed in each compartment of the control cabinet, connecting with dimming module of the LED driving circuit through the PWM output module, and adjusts LED light brightness in real time. The system saves the energy of the train lighting, makes the lighting inside intelligent and energy saving, improves the comfort for passengers and also reduces the train staff workload.