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EFFECT OF BRAKE PEDAL IMPEDANCE ON BRAKING PERFORMANCE IN EH-BBW SYSTEM
박신석 한국자동차공학회 2005 International journal of automotive technology Vol.6 No.4
Despite its superior braking performance to conventional vehicles on test tracks, the performance of the ABS-equipped car seems disappointing on real highway. The poor braking performance results from questionable design of the human-machine interface (HMI) of the brake system. Force-displacement relation at the brake pedal has a strong effect on the braking performance. Recently developed brake-by-wire (BBW) system may allow us to tailor the force feel at the brake pedal. This study aims at exploring analytical ways of designing human-machine interface of BBW system. In this paper, mathematical models of brake pedal feel for electro-hydraulic BBW (EH-BBW) system are developed, and the braking motion and the characteristics of the driver’s leg action are modeled. Based on the dynamic characteristics of the brake pedal and the driver, two new HMI designs for EH-BBW system are proposed. In the designs, BBW system is modeled as a type of master-slave teleoperator. The effectiveness of the proposed designs is investigated using driving simulation.
Disaster Response and Recovery from the Perspective of Robotics
박신석,오유진,홍대희 한국정밀공학회 2017 International Journal of Precision Engineering and Vol.18 No.10
As we witnessed in recent major disasters, the functionalities of robots in disaster environments do not appear to meet the high level of expectation from the public. This paper reviews robotic operations in disaster situations and open issues with the current robotic technologies. We particularly address fundamental problems with teleoperated ground robots for disaster response and recovery: design of robot platforms and balance between human supervisory control and robotic anatomy. In attempt to alleviate the problems, this paper suggests enabling technologies to improve the effectiveness of robotic systems for disaster response and recovery missions.
지방자치단체 지방의료원의 운영 활성화를 위한 실증적 연구
이신석(Shin-Suk Lee),박상무(Sang-Moo Park),심문보(Moon-Bo Sim) 한국콘텐츠학회 2012 한국콘텐츠학회논문지 Vol.12 No.10
지방의료원의 공공의료 활성화를 위하여 공공의료 본래의 공공성에 대한 고찰과 지방의료원의 현 실태를 파악하고 선행연구 분석과 연구자의 경험을 바탕으로 정책적 요인, 환경적 요인, 재정적 요인, 그리고 자생적 요인이 지방의료원의 활성화에 영향을 미친다고 가정하여 충남 4개 지방의료원을 대상으로 설문을 실시하고 실증 분석을 통해 4가지 요인과 40가지 하위 변수들과의 관계를 밝히고 가설을 검증하였다. 실증적 분석으로서 배경요소를 제시하여 가설 및 연구 모형의 설정, 연구집단 및 분석 방법의 설정, 요인분석 및 신뢰·타당도 분석을 실시하고, 윈도우 7 운영체제의 SPSS 19.0을 분석도구로 지방의료원의 활성화 요인과 변수와의 관계를 조사하였으며, PLS 2.0을 분석도구로 모형분석을 통해 가설을 검증하였다. Regional medical center, this countrys public health researchers to activate discussion about public health nature of publicness and Regional medical center to identify actual conditions of the present analysis of previous studies based on the experience of researchers and policy factors, environmental factors, financial factors, and self-sustaining factors affecting the activation of the public health by assuming that the four provinces, Chungnam Regional Medical Center conducted the survey to target four factors through empirical analysis and 40 kinds of relationships with sub-variables hypothesis. To empirical analysis as a background element present hypotheses and research model setting, study population and method of analysis of the set, factor analysis and reliability, validity analysis conducted, and Windows 7 operating system SPSS 19.0 analysis tool for Regional Medical Center enable the public health was to investigate the relationship between factors and variables, PLS 2.0 as an analytical tool to test the hypothesis through the analysis of the model was used.