抄録
Bamboo is a natural structural material that can be processed with little energy and ultimately biodegrades. The students have developed a portable ultra-lightweight and small electric vehicle; pico-EV using bamboo fiber laminated plates under project based learning. The pico-EV has a low traveling velocity and it facilitates shopping and movement. The material constants, which were necessary in the design of the pico-EV, were evaluated experimentally with reference to elementary beam theory. To increase the rigidity and strength of the parts, the laminated plates consisting of thin bamboo fiber sheets at arbitrary angles were newly developed, and used. The pico-EV echo challenge competition 2014 is introduced.