中国照明电器

文章旨在提升新能源汽车高功率LED车灯系统的光输出稳定性、降低能耗并延长使用寿命。通过实施电气驱动优化、PWM调光改进、散热结构设计及主动冷却措施，最终实现电气与热管理的耦合优化。实验结果显示，光通量波动范围由±12%改善至±3%,LED峰值结温由75℃降至60℃，系统能耗降低至31.7 W，整体可靠性显著提升。研究表明，该耦合优化方案能够有效提升车灯系统综合性能，为新能源汽车照明系统高效、安全运行及电气与热管理一体化设计提供了可行技术参考。

This study aims to improve the luminous stability,reduce energy consumption,and extend the service life of high-power LED headlight systems in new energy vehicles.By optimizing the electrical drive,improving PWM dimming,designing heat dissipation structures,and applying active cooling measures,an integrated electrical and thermal management optimization strategy was developed.Experimental results show that luminous stability improved from ± 12% to ±3%,peak LED temperature decreased from 75℃ to 60℃,system power consumption reduced to 31.7 W,and overall reliability was significantly enhanced.The study demonstrates that the proposed optimization approach can effectively enhance the overall performance of headlight systems,providing a feasible technical reference for efficient and safe operation of lighting systems in new energy vehicles.