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배한근(Han-Keun Bae),정병대(Byoung-Dae Jung),류하오(Hao Liu),이재천(Jae-Cheon Lee),윤근하(Gun-Ha Yoon) 한국자동차공학회 2012 한국자동차공학회 부문종합 학술대회 Vol.2012 No.5
PTL (Power Trunk Lid) system is capable of automatic opening and closing the trunk lid without persons manual help. An entire PTL system mainly, comprises four components: drive unit, electronic control unit(ECU), cinching latch, and anti-pitching sensor. In this study, presents the methodology of integrated simulation of RecurDyn for the modeling of multi-body dynamics of PTL system and Colink for the implementation of control logic.
시뮬링크를 기반으로 한 파워 트렁크 리드 시스템의 동역학 모델링 및 제어기 설계
이상운(Sang-Woon Lee),이재천(Jae-Cheon Lee),류하오(Hao Liu),최영일(Young-Il Choi),정병대(Byoung-Dae Jung),윤근하(Gun-Ha Yoon) 한국자동차공학회 2011 한국자동차공학회 부문종합 학술대회 Vol.2011 No.5
Nowadays PTL(Power Trunk Lid) system is used to provide convenience to drivers and passengers by supplying additional power for existing trunk lid. In the paper the mathematical dynamical model of a PTL system is first constructed, and the simulation without control is performed to show the process of the trunk lid opening. Next in order to operate the trunk lid smoothly and safely, based on the above analytical dynamic model a PI controller is designed by using Matlab/Simulink. The simulation results indicate that the trunk lid is properly controled in the process of open, stop and close, which is closed to the set speed profile.
차량 도어 래치의 작동력 계산을 위한 수식 유도 : 파트 1- 캐치, 파울 및 릴리스 래버
이예호(Ye-Ho Lee),이태훈(Tae-Hoon Lee),최승복(Seung-Bok Choi),윤근하(Gun-Ha Yoon),김완현(Wan-Hyun Kim),정병대(Byoung-Dae Jung),이진복(Jin-Bok Lee),김다빈(Da-Bin Kim),신진용(Jin-Young Shin) 한국소음진동공학회 2020 한국소음진동공학회 논문집 Vol.30 No.1
Numerous studies on improving the emotional quality and automatic functionality of automobiles have recently been conducted based on various aspects. The first components touched by passengers are the vehicle doors, and thus the feeling of the opening and closing of the doors is a significant emotional quality and should be treated seriously. In this regard, mathematical equations calculating the operating force of the door latch, which have yet to be reported elsewhere, are formulated in this study. The forces acting on each component are gravity, elasticity, friction, and the normal force. Therefore, the door latch operating force has been formulated as the moment of the force action because all parts rotate about the axis of rotation. Because there are numerous parts used in a door latch, this study is divided into two parts. In part 1, formulas used to calculate the operating force of the catch, pawl, and release lever are determined. And formulas for calculating the OS levers, IS levers and the maximum operating force are analyzed in part 2. In addition, a clear definition of the opening point and the operating force up to the release lever is formulated.
차량 도어 래치의 작동력 계산을 위한 수식 유도 : 파트 2-OS/IS래버, 전체 작동력 분석
이예호(Ye-Ho Lee),이태훈(Tae-Hoon Lee),최승복(Seung-Bok Choi),윤근하(Gun-Ha Yoon),김완현(Wan-Hyun Kim),정병대(Byoung-Dae Jung),이진복(Jin-Bok Lee),김다빈(Da-Bin Kim),신진용(Jin-Young Shin) 한국소음진동공학회 2020 한국소음진동공학회 논문집 Vol.30 No.1
A car door has an inner handle and an outer handle. The magnitude of the operating force of the two handles is commonly influenced by the catch, pawl, and release lever of the door latch, and is divided into an OS lever and an IS lever. OS lever and IS lever are connected to the cable of the handle allowing the final operating force to be obtained. Therefore, it should be divided into two cases in the release lever in the door latch. Because the formulated variables change, an analysis of how much each variable contributes to the maximum operating force needs to be undertaken. In particular, because each part has a torsion spring attached, which part contributes the most to the maximum operating force owing to a change in the spring coefficient should be analyzed. In addition, since the maximum operating force is expressed as the force on the moment, the maximum operating force according to the change of distance from the center of rotation to the contact point between parts is analyzed.