2011 Volume 44 Pages 83-88
This study deals with the results of study on the fundamental development of electric assist attachment for bicycles. Electric assist bicycles does not have only these advantages (for example, light pedaling, good for health care, and not to need driver license), but it is also good for ecology, because it does not use fuels. Hence it is getting more and more popular with its market increasing. However the market price of electric assist bicycle is still higher than 60,000 yen. In this study, I propose the technique to construct an electric assist bicycle by using an ordinaly bicycle and the electric assist attachment. Using this technique, I attempt to reduce production costs and recycle the resource. So then I considered front wheel exchange method for attaching this attachment to ordinaly bicycle. First of all, I have designed and made the wheel of this attachment. Second, I have started to make an IPM motor, but I couldn't finish this motor. And the last, I verified possibility of adding Assist function through the easy experiment using the wheel.
