Study on new-type in-wheel motor system of electrical vehicle

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Our purposes of this study are to verify performances of proposed in-wheel motor system and to design the parameter of the system.From this study, we confirmed that ride quality and road holding is improved by using the proposed in-wheel motor system through the numerical analysis. Moreover, we confirmed that the proposed system has new ability using the reaction force of the wheel driving motor. The ability is that the change in pitch angle has to be reduced.And we propose the new design algorism using the genetic algorism. We design the important parameters of the proposed system such as the spring rates and damping rates by the design algorism.The proposed in-wheel motor system has various advantages, and high performance electrical vehicles will be realized using the proposed systems. The global environment will be greatly improved by the promotion of the electric vehicle. The spread of the electric vehicle is promoted by providing the high performance electrical vehicle using the proposed system.From this study, we verify the performances of the proposed system and design the proposed system by using a numerical simulation. Therefore, our future work is to verify the performances of the system by using the prototype of the proposed system.