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Design of automotive headlamp with high-power LEDS.
- Source :
-
International Journal of Automotive Technology . Jun2014, Vol. 15 Issue 4, p673-681. 9p. - Publication Year :
- 2014
-
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. [ABSTRACT FROM AUTHOR]
Details
- Language :
- English
- ISSN :
- 12299138
- Volume :
- 15
- Issue :
- 4
- Database :
- Academic Search Index
- Journal :
- International Journal of Automotive Technology
- Publication Type :
- Academic Journal
- Accession number :
- 96210628
- Full Text :
- https://doi.org/10.1007/s12239-014-0070-2