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구태윤(TaeYun Koo),한종철(JongChul Han),장민규(MinGyu Jang),문진동(JinDong Moon),우덕현(DurkHyeun Wuh) 한국자동차공학회 2011 한국자동차공학회 학술대회 및 전시회 Vol.2011 No.11
In these days, vehicle manufacturers and system suppliers are well advanced in their driver assistance system products. Especially, in the development process, the reliability test is essential for the guarantee of driver’s safety and convenience. Many ADAS suppliers should do their best to handle a lot of test cases in their test development process. However, it is difficult to make the same test condition and environment in the real driving test. The driving simulator can be used for the alternative and cost-effective test method. In this study, a driving simulator with a 6-DOF motion platform is developed and we propose the verification process of LDWS(Lane Departure Warning System) using a driving simulator. It is expected that the new test method can be used for other ADAS system test such as LCA(Lane Change Assist System), CAS(Collision Avoidance System), and EDS(Emergency Driving Support).
구태윤(Taeyun Koo),지성호(Sungho Ji),김배영(Baeyoung Kim),서명원(Myung-Won Suh) 한국자동차공학회 2006 한국자동차공학회 Symposium Vol.- No.-
A driving Simulator is very useful instrument not only to test the device of future cars but also to evaluate the HMI(Human-Machine Interface). It has already been developed since 1970's. Most driving simulators has the motion platforms which are installed below the cabin for realistic driving feel. However this causes undesirable reverse force during sudden maneuvers. During a sudden left hand turn, the driver is expected to experience a pulling force toward the right due to centrifugal forces. However at the start of the tilting motion, the driver experiences a force in the opposite direction for a short period of time due to inertial accelerations. This is responsible for the simulator sickness which is the major shortcoming of driving simulators. This paper describes and introduces a new type motion platform, the inverted driving simulator. With the inverted motion platform, the initial force at the start of the tilt and the resulting force due to gravitational pull after the motion platform is tilted are in the same direction. Therefore, with proper motion modulation, the driver can be made to feel the desired force in the correct direction right away form the beginning of motion.
An Experimental Study on the Driver Workload of Telematics Service
Taeyun Koo(구태윤),Sehoon Kim(김세훈),Sungho Ji(지성호),Hyunjun Kim(김현준),Junghwan Lee(이정환),Chulho Bae(배철호),Myungwon Suh(서명원) 한국자동차공학회 2006 한국자동차공학회 춘 추계 학술대회 논문집 Vol.- No.-
Recently, diffusion of Telematics service and explosive increase of using in-vehicle display device such as CNS(Car Navigation System) are becoming the new causes of traffic accidents during driving. This is caused by 'Inattention' from increase of driver's mental workload while he/she is driving. It is the real situation that many countries including Japan are considering a control of In-vehicle device during driving through legislation. This research is studied about the effect of information system at voice or display unit on drivers through the Driver Eye Movement Analysis and measurement of performance ability. The experiment is carried out in the driving simulator environment, and the result presents through the comparative analysis of the driver's visual field via the gaze tracking device and average of correct-answer rates in addition arithmetic performance.
운전자 생리 신호 측정 기법을 이용한 Steer-by-Wire 시스템의 Controllability 평가 방법 연구
김도환(Dohwan Kim),구태윤(Taeyun Koo),은준용(Junyong Eun),조성근(Seongguen Cho),한민규(Mingyu Han) 한국자동차공학회 2020 한국자동차공학회 부문종합 학술대회 Vol.2020 No.7
In the ISO 26262 Functional Safety Study, only the subjective rating through the Jury Test was used to assess the controllability. This study presents an objective evaluation method by applying physiological signal analysis methods. The subjects will conduct a subjective rating of the controllability according to the instructed rating scale, for conditions in which there is no torque feedback by the SFA due to a failure during cornering. The subjective rating used in this study, obtained reliability through the analysis of physiological signals during the failure. For heart rate (HR), no significant tendency was found, but skin conductivity (GSR) was analyzed using grouping methods to confirm the tendency of controllability, which was also statistically significant. Therefore in rating comfort of Lv.5 autonomous driving, GSR can be used as objective parameters.
차량 주행 시뮬레이터 기반의 Sensor Fusion Algorithm 검증 환경 구축 및 평가
장민규(MinGyu Jang),구태윤(TaeYun Koo),한종철(JongChul Han),이한주(HanJu Lee),문진동(JinDong Moon) 한국자동차공학회 2012 한국자동차공학회 부문종합 학술대회 Vol.2012 No.5
ADAS(Advanced Driver Assist System) are systems to help the driver and each system has specific software made by developer. Unfortunately, a developer can make an error or mistake, which causes a failure in system. So software testing is very important process and needed for drivers safety. In this study, we focus on sensor fusion system(LKAS and SCC) and propose the software test environment of sensor fusion algorithm using a driving simulator. The HILS(Hardware-in-the-Loop Simulation) test environment has been established and evaluated its performance.