2-Step Multi Objective Optimization of EV System by 1D and 3D Integration

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Koichi Shigematsu, FC Sales Div. Cybernet Systems Co., Ltd.

Abstract

In motor and motor drive system design, complexity and shortening of release cycle of product increase number of investigations required for specification and device design. Efficient multi-disciplinary optimization and seamless 1D and 3D integration are important for competitive product and company. In this paper, 2-step multi objective optimization of EV system integrating 1D and 3D simulations is introduced. For the first step, IPM motor shape is optimized focusing on drive torque and core loss. For the second step, system specifications in EV system including optimized motors are optimized focusing on electric power efficiency and difference toward target velocity in driving cycle. From the result, effectiveness of the optimization approach is introduced.

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