Soo-Seok Choi
Samsung
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Publication
Featured researches published by Soo-Seok Choi.
international power electronics and motion control conference | 2006
Jaemoon Lee; Jaeho Lee; Onyong Nam; Jonghun Kim; Bo-Hyung Cho; Han-Seok Yun; Soo-Seok Choi; Ki-ho Kim; Jun-Hyung Kim; Sonu Jun
In this paper, a real time estimate of a battery model is proposed. The existing impedance model is accurate in predicting the behavior of a battery. However, it is complex and not applicable for real time applications. Also, it requires much time and cost to obtain the parameters of the model. A simple lumped circuit model is presented. The parameters and states (overvoltages) of the battery are estimated with a filtering technique and system identification theory. It is verified through simulations and experiments that the proposed method is in good agreement with the dynamic characteristics of the battery, regardless of the conditions of the battery, and the estimated overvoltages are given physical meanings through a comparison with an impedance model with complex RC ladder circuits
Materials Research Innovations | 2014
E. G. Lee; O. S. Seo; Soo-Seok Choi; You-Min Shin; H. Y. Kim
Abstract A clad sheet is a metal coated laminate with various advantages such as strength, workability, corrosion resistance and economic efficiency. However, measurement of the mechanical properties of clad sheets is difficult because of different yield strengths, bending phenomena and other properties of their multiple components. This study investigated the characteristics of a Ti/Al clad sheet and applied the findings to finite element analysis (FEA). Tensile testing, optical microscopy and the Vickers hardness test were first carried out experimentally. Then, a numerical method for obtaining a stress–strain curve using the relationship between yield stress and hardness is proposed. The method measures mechanical properties in a timely and cost efficient way.
Archive | 2007
Yong-Jun Samsung Sdi Co. Ltd. Tae; Soo-Seok Choi; Young-Jo Lee; Han-Seok Yun; Se-Wook Seo; Gye-Jong Lim; Beom-Gyu Kim; Ho-Young Park
Archive | 2003
Soo-Seok Choi; Yun-Suk Choi; Ji-Seong Han; Seung-Hee Park; Yongju Jung; Il-Young Lee
Archive | 2007
Han-Seok Yun; Young-Jo Lee; Soo-Seok Choi; Jae-moon Lee; Bo-Hyung Cho
Archive | 2007
Gye-Jong Lim; Soo-Seok Choi; Young-Jo Lee; Yong-Jun Tae; Han-Seok Yun; Se-Wook Seo; Beom-Gyu Kim; Ho-Young Park
Archive | 2007
Han-Seok Yun; Young-Jo Lee; Soo-Seok Choi; Oan-Yong Nam; Bo-Hyung Cho
Archive | 2007
Han-Seok Yun; Young-Jo Lee; Se-Wook Seo; Gye-Jong Lim; Beom-Gyu Kim; Soo-Seok Choi
Archive | 2007
Han-Seok Yun; Young-Jo Lee; Soo-Seok Choi; Oan-Yong Nam; Bo-Hyung Cho
Archive | 2007
Han-Seok Yun; Young-Jo Lee; Soo-Seok Choi; Oan-Yong Nam; Bo-Hyung Cho