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브레이크 로봇을 활용한 제동안정성평가 신뢰성 향상방안 연구
조성우(Seongwoo Cho),최인성(Inseong Choi),안장모(Jangmo Ahn),김성섭(Seongsub Kim) 한국자동차공학회 2010 한국자동차공학회 부문종합 학술대회 Vol.2010 No.5
The Korean New Car Assessment Program (KNCAP) has been carried out by the Korean government since 1999 in order to encourage that the auto makers shall launch the safer cars into the domestic market. The brake NCAP test has been adopted to reduce the stopping distance. Braking tests were performed with pedal force applied by driver/robot individually and their effects upon pedal force requirements were analyzed. The differences of stopping distance were significantly shorter with pedal force applied by brake robot compared to pedal force applied by driver. Accordingly, this study evaluated the effectiveness of brake robot that will reduce the deviation of stopping distances through pedal force requirements of brake NCAP. The methodology to integrate the respective ratings from the braking tests considering environmental variables would be studied for the future application.
장현익,용부중,조성우,최인성,민경찬,김규현,Jang, Hyunik,Yong, Boojoong,Cho, Seongwoo,Choi, Inseong,Min, Kyongchan,Kim, Gyuhyun 한국자동차안전학회 2012 자동차안전학회지 Vol.4 No.1
ADAS(Advanced Driver Assistance System) which is developed for alleviating driver's load has become improved with extending it's role. Previously, ADAS offered simple function just to make driver's convenience. However, nowadays ADAS also acts as Active Safety system which is made to release and/or prevent accidents. Longitudinal control system, as one of major parts of Active Safety System, is assessed as doing direct effect on avoiding accidents. Therefore, many countries such as Europe and America has pushed longitudinal control system as a government-wide project. In this paper, it covers the result of evaluation system and vehicle evaluation for development study in FCW, ACC and AEB.
국내외 자율주행차 테스트베드 분석 기반 K-City 발전 전략 수립에 관한 연구
김예진,박상민,김인영,고한검,조성우,윤일수,Kim, Yejin,Park, Sangmin,Kim, Inyoung,Ko, Hangeom,Cho, Seongwoo,Yun, llsoo 한국ITS학회 2021 한국ITS학회논문지 Vol.20 No.4
교통사고의 발생원인 중 85-90%는 인적요인으로서, 인지·판단·제어 속도가 빠른 자율주행차는 인적요인으로 인한 교통사고를 예방하기 위한 대안이 될 수 있다. 그러나 자율주행차 도입을 통한 교통사고 피해 감소를 위해서는 자율주행의 안전성 확보가 선행되어야 한다. 따라서 실도로와 유사한 환경에서 반복·재현 시험주행을 통해 도로·교통 환경 변화에 따라 자율주행차가 적절하게 대응할 수 있는지를 검증할 필요가 있다. 이 연구에서는 기구축된 국내외 테스트베드의 현황 비교·분석 및 자율주행차 실험도시(K-City)의 경영환경분석(PEST, SWOT 분석)을 통해 K-City의 고도화 및 차별화, 체계적인 발전을 위한 다양한 관점에서의 전략을 수립하였으며, 각 발전 전략을 달성하기 위한 전략 과제를 도출하였다. 85-90% of the causes of traffic accidents are human factors, and autonomous vehicles with little free running distance can be an alternative to prevent traffic accidents caused by human factors. However, securing safety of autonomous vehicles should be preceded in order to reduce traffic accident damage through the introduction of autonomous vehicles. Therefore, it is necessary to verify whether the vehicle can respond appropriately to changes in the road and traffic environment through repeated and reproduced test runs in an environment similar to the actual road. In this study, K-City's development strategies for upgrading, differentiating, and systematic development were established by comparing and analyzing the current status of domestic and foreign testbeds and business environment analysis. Furthermore, we derive challenge tasks to achieve each strategy.
최인성(Inseong Choi),이종현(Jonghyun Lee),조성우(Seongwoo Cho),김성섭(Sungsub Kim),민경찬(Kyongchan Min) 한국자동차공학회 2011 한국자동차공학회 부문종합 학술대회 Vol.2011 No.5
Since first introduced in the middle of 1990’s, brake system with electric control transmission, called ‘Brake by Wire’, have gradually started to embodied in a complex braking system like EHB, EMB because its lots of benefits . But, there will be some safety-related risk if we use the system without consideration of electric failures. In this study, along with analysing international harmonization regulations(UNECE Regulation 13-H), a vehicle equipped with partial electric control transmission have been tested according to the present KMVSS No.90-1 for brake system and surveyed braking response on surfaces having different friction coefficient after setting various electric signal failure mode in hydraulic control unit, and the result of the study will be reflected on the KMVSS in future.
민경찬(Kyongchan Min),최인성(Inseong Choi),김성섭(Sungsub Kim),조성우(Seongwoo Cho),김규현(Kuhyun Kim) 한국자동차공학회 2012 한국자동차공학회 부문종합 학술대회 Vol.2012 No.5
The inertia (overrun) braking system of a trailer comprises the control device, the transmission and the wheel brakes. The Inertia braking systems convert the trailer’s inertia force to braking force in their wheel brake. The Inertia braking systems are widely used for small trailers because of the mechanism is relatively simple. But, safety evaluation method and test procedure are not well defined. In this study, along with analysing international harmonization regulations(UNECE Regulation 13) and the result of the study will be reflected on the KMVSS in future.