Abstract
Nowadays, vehicles impose more and more burdens on environment. They are largest in driving, so it brings the greatest result on improving fuel consumption by lightening their weight. Therefore between current and lightweight automobiles using CFRP, we compare and study their energy consumption and CO_2 emission by LCA. Basic unit, such as energy consumption and CO_2 emission per weight, of current CFRP is very large, so that the life cycle environmental load of the automobile increases instead of decreasing weight. Finally, simulations in this study clearly show that 3R technology of CFRP must be developed to apply and decrease the life cycle environmental load of automobiles.
