Abstract A novel vehicle headlamp low beam system is presented. The optical system is composed of three identical cells to ensure enough illumination. A poly-ellipsoid reflector and a aspherical lens are used to concentrate the rays and a baffle is employed to produce the cut-off line. The optical performance shows a good agreement with the requirement for headlamp in Chinese national standard. The smart constant current driver sustains automotive headlamps᾿requirements, moreover it has high power efficiency. The performance of three kinds of cooling systems with different structures are simulated and evaluated by FloTHERM software. Then a loop heat pipes combined with fins cooling system is manufactured for cooling the designed LED headlamp. It can greatly improve the cooling efficiency. Even in the 80°C environmental temperature, it can meet the working requirements of LED headlamp low beam system, so it is a kind of feasible cooling scheme.


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    Titel :

    Design of automotive headlamp with high-power LEDS


    Beteiligte:
    Wang, J. (Autor:in) / Cai, Y. X. (Autor:in) / Li, X. H. (Autor:in) / Zhao, X. J. (Autor:in) / Zhang, C. (Autor:in)

    Erschienen in:

    Erscheinungsdatum :

    2014-05-28


    Format / Umfang :

    9 pages




    Medientyp :

    Aufsatz (Zeitschrift)


    Format :

    Elektronische Ressource


    Sprache :

    Englisch




    Design of automotive headlamp with high-power LEDS

    Wang, J. / Cai, Y. X. / Li, X. H. et al. | British Library Online Contents | 2014


    Design of automotive headlamp with high-power LEDS

    Wang, J. / Cai, Y. X. / Li, X. H. et al. | Online Contents | 2014


    Studies for Headlamp Optical Design Using LEDs

    Wang, B. / Jiao, J. / Society of Automotive Engineers | British Library Conference Proceedings | 2004


    Studies for headlamp optical design using LEDs

    Wang,B. / Jiao,J. / North American Lighting,US | Kraftfahrwesen | 2004


    Studies for Headlamp Optical Design Using LEDs

    Wang, B. / Jiao, J. / Society of Automotive Engineers | British Library Conference Proceedings | 2004