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김창준(Changjun Kim),김현수(Hyunsoo Kim),김기헌(Kiheon Kim),한창수(Changsoo Kim) 한국자동차공학회 2006 한국자동차공학회 춘 추계 학술대회 논문집 Vol.- No.-
This paper is about steering system of Steer-by-Wire(SBW). As a SBW system is applied in order to improve steering feel and maneuverability, the controller should have two purposes. One is controlling steering wheel for the driver's steering feel and the other is controlling the front wheel system for vehicle stability. This study focuses on steering wheel system. The column is reduced in the SBW steering wheel system. Therefore it need artificial steering feel. This is the study for an objective evaluation method with steering angle, steering torque to quantify steering feel of SBW system. Based on this method, the affect two different torque map performance was simulated and compared each other.
김창준(Changjun Kim),박경덕(Kyungdeock Daniel Park),이준구(June-Koo Kevin Rhee) 한국통신학회 2021 한국통신학회 학술대회논문집 Vol.2021 No.2
NISQ 양자컴퓨팅에서 발생하는 계산 오류를 완화시킴으로서 계산 정확도를 개선할 수 있다. 이를 위하여 다양한 양자입력 상태, 다양한 양자회로의 구성, 이때 발생한 오류의 유형을 고전적 기계학습을 통하여 학습하여 양자컴퓨팅 결과의 오류를 추정하고 완화시켜 계산 정확도를 높이는 방법에 관한 연구 결과를 제시한다.
조향감 향상을 위한 Steer-by-Wire System 제어기 설계
김창준(Changjun Kim),정명철(Myungchul Jung),오승규(Seungkyu Oh),성우제(Wooje Sung),한창수(Changsoo Han) 한국자동차공학회 2004 한국자동차공학회 춘 추계 학술대회 논문집 Vol.- No.-
Steer-by-Wire(SBW) system consist of steering wheel system and front wheel system. SBW system is modeled using the bond graph method. Steering wheel system used the torque map to reactive torque control. Using the filter, the current of the front wheel system enter the steering wheel system. A driver will feel a reactive torque. In this paper, aim of SBW system controller is transmitted to driver information of the road that considered a disturbance.
김창준(Changjun Kim),김기헌(Kiheon Kim),김현수(Hyunsoo Kim),한창수(Changsoo Han) 한국자동차공학회 2006 한국자동차공학회 춘 추계 학술대회 논문집 Vol.- No.-
When we study steering system, making use of HILS is general method to study. Generally, HILS of steering System is cheaper than real car test in the economical aspect and timesaving aspect. If we test various series of vehicles or use the other type of steering systems, however, uneconomical trial to establish the new HILS system. To minimize the economical and periodical loads, we would try to introduce the new HILS system to fit diverse steering systems. We design the moving column system to correspond to each other vehicles and adopt the extension unit to satisfy the many types of tread.
북한지역 작전 시 지형적 난점을 고려한 군수지원 발전방향
김창준(Changjun Kim),박찬영(Chanyoung Park),박성수(Sungsoo Park) 한국문화융합학회 2024 문화와 융합 Vol.46 No.1
Due to climate change, the temporal expansion of Rasputica is having a great influence on the operation of Army. The Korean military should analyze the possibility of occurrence of topographical difficulties in consideration of climate change on the Korean Peninsula. In this paper, the possibility of Rasputica occurrence was considered by comparing and analyzing the topographic and meteorological factors of Russia and Ukraine, and the Hwanghaebukdo and Pyongannamdo, and the direction of development of logistics support for the Korean military was discussed. The two regions are important areas of the Korean military in case of emergency, with wide plains and major cities located. As a result of the analysis, the area showed some similar characteristics to that of the Ukrainian region. Alluvial soil and deep mud soil are mainly formed on a wide plain, and drainage is insufficient, and if conditions such as a large amount of precipitation and temperature are satisfied, there is a possibility of causing Rasputica. The direction of overcoming topographic difficulties in terms of logistics support was considered by using railroads, roads, and water transportation. 기후변화로 인해 라스푸티차의 시기적 확장이 군사력 운용에 큰 영향을 미치고 있다. 우리 군은 한반도기후변화 양상를 고려한 지형적 난점 발생 가능성을 분석해야 한다. 본 논문에서는 러시아 · 우크라이나지역과 황해북도 및 평안남도의 지형 및 기상적 요소를 비교 · 분석하여 라스푸티차 발생 가능성을 고찰하고, 이를 고려한 한국군 군수지원 발전방향에 대해 논하였다. 두 지역은 유사시 우리 군의 중요 작전지역으로 넓은 평야와 주요 도시가 위치해 있다. 분석 결과 해당 지역은 우크라이나 지역과 일부 유사한 특성을 보였다. 넓은 평야에 충적지 논토양과 진펄토양이 주를 이루어 배수가 불비해 다량의 강수와기온 등 조건이 충족되면 라스푸티차를 유발할 가능성이 있다. 이에 철도, 도로, 수상운수를 활용하여군수지원 측면의 지형적 난점 극복 방향에 대해 고찰하였다.