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전기자동차 시스템 모델링 및 주행 환경에 따른 배터리 응답 특성 연구
추용주,박준영,박광민,이승엽,Chu, Yong-Ju,Park, Jun-Young,Park, Gwang-Min,Lee, Seung-Yop 대한임베디드공학회 2022 대한임베디드공학회논문지 Vol.17 No.2
Currently, various researches on electric vehicle battery systems have been conducted from the viewpoint of safety and performance for SoC, SoH, etc. However, it is difficult to build a precise electrical model of a battery system based on the chemical reaction and SoC prediction. Experimental measurements and predictions of the battery SoC were usually performed using dynamometers. In this paper, we construct a simulation model of an electric vehicle system using Matlab Simulink, and confirm the response characteristics based on the vehicle test driving profiles. In addition, we show that it is possible to derive the correlation between the SoC, voltage, and current of the battery according to the driving time of the electric vehicle in conjunction with the BMS model.
추용주(YongJu Chu),이병남(ByungNam Lee),추명주(MyungJu Chu),강구태(KooTae Kang) 한국자동차공학회 2012 한국자동차공학회 학술대회 및 전시회 Vol.2012 No.11
DCT has comfortable of change of speed automatic transmission and high efficiency of manual transmission at once. However DCT has complicated structure and is has difficult to develop. In this study, we apply the shift mechanism based on a barrel cam to indicate the efficient shift mechanism and we has gone to analysis of design to cam-profile such as cycloid curve, polynomial curve and modified sine curve.
SMA을 이용한 3차원 차원 형상제시기의 와이어프레임 구동 유닛
추용주(Y. J Chu),김영민(Y. M. Kim),송재복(J. B. Song),박신석(S. S. Park) 한국정밀공학회 2006 한국정밀공학회 학술발표대회 논문집 Vol.2006 No.5월
This research proposes a novel method of shape display to present 3-dimensional objects. Shape displays allow us to feel the actual volume of the object, unlike conventional 2D visual displays of 3D objects. The proposed method employs a wire frame structure to present 3D objects. The wire frame is composed of small units driven by shape memory alloy (SMA) actuators. The drive unit is analogous to the agonist-antagonist system of animal musculoskeletal systems, where the SMA actuators serve as agonist and antagonist muscles. The force in the SMA actuator is controlled by electrical current. The drive unit is equipped with the locking mechanism so that it can sustain the external force exerted by the user as well as the own weight of the wire frame structure. By controlling the current into the SMA actuator and locking mechanism, we can control the angle of the drive unit. A chain of drive units enables presentation of 2 dimensional objects. 3 dimensional presentations are possible by collecting the chains of drive units.
추용주(Yongju Chu),정시욱(Siuk Jung),김규식(Kyusik Kim),이봉현(Bonghyun Lee) 한국자동차공학회 2017 한국자동차공학회 부문종합 학술대회 Vol.2017 No.5
This paper is about the study of structure analysis of a tid rod module using finite elements method for electric vehicle. Generally, the tid rod module was designed with steering system. Most of all the tid rod systems are mounted by steering system. The weight of the tid rod was optimized by adopting the developed materials. Therefore robust structure and buckling performances should be considered in the structure design of the tid rod outer. In this paper ,the tid rod outer was applied by aluminum for light-weight. A study was preformed on the verifications of the reliability and structure behavior by analysing of the finite elements method(FEM) and checking the bucking behavior.