Title |
Cogging Torque Reduction Design for CVVT Using Response Surface Methodology |
Authors |
김재의(Kim, Jae-Yui) ; 김동민(Kim, Dong-min) ; 박수환(Park, Soo-Hwan) ; 홍정표(Hon, Jung-Pyo) |
DOI |
https://doi.org/10.5370/KIEE.2016.65.12.2183 |
Keywords |
Cogging torque ; Optimum design ; Space harmonic analysis ; Surface-mounted permanent magnet synchronous motor ; Response Surface Methodology |
Abstract |
This paper deals with the design process for an outer-rotor-type surface-mounted permanent magnet synchronous motor (SPMSM) used in continuous variable valve timing (CVVT) systems in automobiles with internal combustion engines. When the same size, outer-rotor-type SPMSMs generate larger torque and more stable than inner-rotor-type SPMSMs. For the initial design, space harmonic analysis (SHA) is used. In order to minimize the cogging torque, an optimization was conducted using Response Surface Methodology (RSM). At the end of the paper, Finite Element Analysis (FEA) is performed to verify the performance of the optimum model. |