Implementation of LED Motorcycle Headlamp with Low Power Consumption for complied with SAE Standard

• Main Author: 施仁傑
• Other Authors: 陳財榮 博士
• Format: Others
• Language: zh-TW
• Published: 2013
• Online Access: http://ndltd.ncl.edu.tw/handle/77923784915056526632

碩士 === 國立彰化師範大學 === 電機工程學系 === 101 === Abstract Halogen bulbs are currently utilized as light sources of motorcycle headlamps with the electrical specifications of 12V/55W for low beam and 12V/60W for high beam, respectively, and MR(Multi-Reflector) is adopted for the reflector of the optical system. However, the energy consumption of Halogen bulbs does not meet the world trend of energy conservation and carbon reduction. The study proposes and develops a LED headlamp system for heavy motorcycle. In the system, four high-power LEDs are used as light source in high beam mode with a power consumption of 12W, which is estimated as 80% energy-saving comparing to traditional bulbs. In low beam mode, two LED bulbs are switched on with power consumption of 6W, which is estimated as 89% energy-saving comparing to traditional bulbs. The proposed optical system for motorcycle headlamp is simulated and analyzed through optical software to meet the American standard of FMVSS 108. The headlamp reaches a maximum luminous intensity of 52740 cd at the test point of 1D-V. Moreover, because of the hermetic space of the headlamp, in which the thermal interface is usually 150℃, heat dissipation of LEDs is another focus of the study. To ensure the life of the lamp, the heat generated from LEDs is radiated effectively by the heat flow simulation software with the combination of mechanical design and heat sink fin. After the experiment, the temperature of developed motorcycle headlamp is below 120℃, which meets the requirement of LED thermal interface.