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육상교통 항법을 위한 네트워크기반 위성항법보정 시스템의 구성
손민혁,손은성,이은성,허문범,남기욱,Son, Minhyuk,Son, Eunseong,Lee, Eunsung,Heo, Moon-Beom,Nam, Gi-Wook 한국항공운항학회 2013 한국항공운항학회지 Vol.21 No.4
In this paper, a configuration procedure of a transportation infrastructure system for GNSS based very precise real-time positioning is proposed. This infrastructure system consists of several receiving station, a central station, and communication sub-systems. The required performance, design, implementation and verification of each sub-system are explained respectively. The required performance can be broken down into accuracy, integrity, stability, processing time. The design of the each sub-system is performed in accordance with the required performance and each sub-system is built with regard to the design. Lastly the implemented system is verified in comparison with the required performance.
손민혁(Son, Minhyuk),이재은(LEE, Jaeeun),김군택(KIM, Koontack),이병석(LEE, ByungSeok),남기욱(Nam, Gi-Wook) 한국항공우주연구원 2020 항공우주산업기술동향 Vol.18 No.1
위성항법 기술 선진국은 독자적으로 위성항법시스템을 개발하여 운영하고 있으며 항법 성능을 향상하고 보장하기 위한 위성 기반의 위성항법보정시스템(SBAS)을 함께 운영하고 있다. 유럽연합은 EGNOS를 개발하여 운영하고 있으며 항공은 물론 해상, 육상까지 그 영역을 넓혀 가고 있다. 또한, EGNOS의 운영 효율과 성능의 향상 등을 위해 지속적인 시스템의 업데이트 및 업그레이드를 추진하여 시스템을 진화시키고 있다. 여기서 EGNOS 시스템에 대해 세부적으로 알아보고 성능 유지 및 향상을 위한 EGNOS 시스템의 진화에 대해 살펴보기로 한다. 또한, 국내에서 개발 중인 KASS의 개발 현황을 살펴보기로 한다. Advanced countries related to satellite navigation technology have independently developed and operated satellite navigation systems, and are also operating Satellite Based Augmentation System (SBAS)’s to improve and ensure navigation performance. The European Union has developed and operated EGNOS and is expanding its scope not only to aviation, but also to sea and land transportation. In addition, EGNOS is continuously evolving the system by continuously updating and upgrading the system to improve its operation efficiency and performance. In this paper, the introduction of the EGNOS system and the evolution of the EGNOS system for maintaining and improving performance are described in detail. In addition, it presents the development status of KASS in Korea.
다양한 노면 조건에서의 능동 긴급 제동 시스템(AEBS) 성능 해석 시뮬레이션
손민혁(Minhyuk Son),남창훈(Changhoon Nam) 한국자동차공학회 2012 한국자동차공학회 학술대회 및 전시회 Vol.2012 No.11
This paper presents the use of software tools that together provide the ability to cover critical aspects of active safety system design and performance analysis simulation. One of the software tools (PreScan) focuses on the design of the sensing and control systems, as well as the evaluation for a wide range of traffic and weather scenarios. Another software tool (CarSim) takes care of the detailed vehicle dynamics and has the function for external tire model and road profiles. For detailed the tireroad contact patch and tire forces, a Short Wavelength Intermediate Frequency Tyre (SWIFT) model has considered. A road profile model can generate by OpenCRG easily and coupled with the tire models in the CarSim. By means of an application example of an Active Emergency Braking System (AEBS) under rough road conditions, the combined use of those software tools to design and evaluate the performance of active safety system is demonstrated.
차량 안정성 제어 시스템을 위한 차량 모델의 안정성 영역 해석
손민혁(Minhyuk Son),윤득선(Duksun Yun),부광석(Kwangseok Boo),김흥섭(Heungseob Kim) 한국자동차공학회 2009 한국자동차공학회 학술대회 및 전시회 Vol.2009 No.11
This paper describes the design of a unified chassis control system and study of control input affects the vehicle dynamic stability. As the vehicle stability enhancement, unified chassis control system is developed by integration of a individual controller. Moreover original ability, these systems are used for vehicle behavior control by brake pressure control, superimposed steering, active damping control. Most of these systems composes that choice the reference parameter and control that minimize the error between reference and actual parameter, but effects of control input to vehicle stability is still unclear. This paper examine the parameter affects the vehicle stability with Lyapunov’s direct method and Topological method under several driving condition. Consequently, these control input guarantee the stability region, while satisfying all actuator constraints.
손민혁(Minhyuk Son),부광석(Kwangseok Boo),김흥섭(Heungseob Kim) 한국자동차공학회 2010 한국자동차공학회 부문종합 학술대회 Vol.2010 No.5
This paper describes the method of control allocation for chassis stability control system and study of stability region of driving vehicle. As the vehicle stability enhancement, unified chassis control system is developed by integration of a individual controller. Moreover original ability, these systems are used for vehicle behavior control by brake pressure control, superimposed steering, active damping control. Most of these systems composes that choice the reference parameter and control that minimize the error between reference and actual parameter, but effects of control input to vehicle stability is still unclear. In this paper will present control allocation contributions to vehicle stability. Consequently, these control input guarantee the stability region, while satisfying all actuator constraints.
실시간 차량 제어 시스템을 위한 차량 동역학 제어기 설계
손민혁(Minhyuk Son),부광석(Kwangsuck Boo),김홍섭(Heuogseob Kim) 한국자동차공학회 2004 한국자동차공학회 지부 학술대회 논문집 Vol.- No.-
This paper presents Vehicle Dynamics Controller (VDC) design for a Hardware in the Loop Simulator (HILS). For the robust performance and dealing with nonlinearity and disturbance, sliding mode controller is applied. In addition, time varying switching surface is introduced to consider the trade-off between stability and controllability. The controller is designed by using the 2DOF vehicle model with nonlinear tire (Pacejka's Magic formula). The effect of time varying switching surface is proved by computer simulations of vehicle response to a several friction coefficient with step steering input as compared with time invariable switching surface. The paper explains the simulation results and the implications for the future work.