Analyse of Differences between Lower Beam and Upper Beam of ECE and FMVSS

Abstract

It has achieved a consensus that the on-sale vehicles and spare parts should reach certain requirements in the field of safety, energy saving, environment protection and immobilization to guarantee the performance of them. Two systems of ECE and FMVSS in automobile field have formed after development of nearly a hundred years. In this article, we will compare the testing points' differences between lower beam and upper beam in two main mandatory systems in order to promote the lighting distribution design of headlamp.