Abstract
We have developed the Battery Built-in Frame (BBF) for an electric vehicle. This structure provide the space for battery storage in aluminum extrusion molding under the floor, which was adopted in "Luciole". In this paper BBF was extended to store all the electric components needed to drive an EV, such as batteries, inverters, a vehicle controller, a DC to DC converter and power switchers. We named this concept "the Component Built-in Frame(CBF)". This modification resulted in not only the expansion of cabin space but also the improvement of the body stiffness by maximum 39%, generally 7% in torsional rigidity, and maximum 24%, generally 21% in flexural rigidity.
