• Journal of Korean Society of Transportation
• /
• v.32 no.4
• /
• pp.293-302
• /
• 2014

Recently, advanced sensors and communication technologies have been widely applied to advanced safety vehicles for reducing traffic accidents and injury severity. To apply the advanced safety vehicle technologies, it is important to quantify safety benefits, which is a fundamental for justifying application. This study proposed a methodology for quantifying the effectiveness of the Advanced Driver Assistant System (ADAS) with the Analytic Hierarchy Process (AHP). When the proposed methodology is applied to 2008-2010 Gyeonggi-province crash data, ADAS would reduce about 10.18% of crashes. In addition, Adaptive Cruise Control, Automatic Emergency Braking System, Lane Departure Warning System and Blind Spot Detection System are expected to reduce about 10.43%, 10.17%, 9.96%, and 10.18%, respectively. The outcomes of this study might support decision making for developing not only vehicular technologies but also relevant safety policies.

• Electronics and Telecommunications Trends
• /
• v.22 no.5
• /
• pp.35-45
• /
• 2007

전방감지용 밀리미터파 레이더는 밀리미터파를 이용하여 자동차 등에 부착하여 송신파와 수신파 사이의 도플러 주파수 편이를 이용하여 선행차량 또는 전방의 장애물과의 거리와 상대속도를 판별하는 장치로서 적응형 순항제어 시스템(adaptive cruise control system) 등에 이용되는 핵심 기술이다. 적응형 순항제어 시스템이란 레이더 센서를 통하여 전방 선행 차량, 장애물의 속도 및 거리를 측정하여 차량의 충돌 경고, 주행 상황에 따른 자동적인 감속 및 가속, 정속 등 안전주행을 가능하도록 하는 기술이다. 본 기술 동향 분석보고서는 전방감지용 레이더 센서에 관한 기술 동향을 살펴보기 위하여 미국, EU, 일본, 한국의 전방감지용 레이더 센서에 관한 특허를 1991년부터 2005년까지의 특허출원을 중심으로 연도별 추이와 국가별 특허출원 동향, 출원인별 특허출원 동향 등을 분석하여 전방감지용 레이더의 세계 기술 추이에 대하여 알아보았다.

• Proceedings of the KSME Conference
• /
• 2005.11a
• /
• pp.193.2-193.2
• /
• 2005

• Journal of Auto-vehicle Safety Association
• /
• v.8 no.2
• /
• pp.6-10
• /
• 2016

The objective of this paper is to understand value of active safety features on the customer perspective. In this study, 30 participants who don't have experience with active safety features were recruited and asked for preference, usefulness and consideration of each active safety feature after driving evaluation by them. Through this research, the preference of active safety features were analyzed and which of active safety features were the most useful and the most considered by customer when they purchase new vehicle. As a result, adaptive cruise control and side blind zone alert were the most strongly preferred and considered features by respondents and it means that respondents wanted comfort environment while driving and seemed to value features that compensated for limited visibility. On the other hand, active safety features that warned driver without control of the vehicle was deemed generally less desirable such as lane departure warning and forward collision alert. But autonomous emergency braking was higher than the other active safety features with only warning even if they did not have experience for it while this test. They thought it will be helpful in case of front-end collision situation even they just listened description before the test.

• The Journal of Korean Institute of Information Technology
• /
• v.16 no.11
• /
• pp.133-144
• /
• 2018

IEC 62278, the Railway System Safety Standard, requires for hazard analysis to prevent or control the hazard that the railway system may have. If hazard analysis is not performed sufficiently, there is a high probability that accidents will occur. For this reason, hazard analysis methods are actively studied. In this paper, we propose the hybrid hazard analysis method to combine two representative hazard analysis methods: reliability-based and system-theoretic. As the proposed method is complementary to existing ones, it covers both the hazard caused by failure of components and the hazard occurred from the unintended control between components. It applies to the development of a safety protection mechanism for multiple cruise control system that automatically control the speed of trains to avoid the collision among trains. As a result, we drive more safety requirements than the existing analysis methods and it turns out that the safety requirements protect the trains with respect to the identified hazards.

• Journal of the Korea Academia-Industrial cooperation Society
• /
• v.21 no.3
• /
• pp.57-64
• /
• 2020

The leading technologies of the ADAS (Advanced Driver Assist System) are ACC (Advanced Cruise Control), LKAS (Lane Keeping Assist System), and AEB (Autonomous Emergency Braking). LKAS is a system that uses cameras and infrared sensors to control steering and return to its running lane in the event of unintentional deviations. The actual test is performed for a safety evaluation and verification of the system. On the other hand, research on the system evaluation method is insufficient when an additional steering angle is applied. In this study, a model using Prescan was developed and simulated for the scenarios proposed in the preceding study. Comparative analyses of the simulation and the actual test were performed. As a result, the modeling validity was verified. A difference between the front wheels and the lane occurred due to the return velocity. The results revealed a maximum error of 0.56 m. The error occurred because the lateral velocity of the car was relatively small. On the other hand, the distance from wheels to the lanes displayed a tendency of approximately 0.5 m. This can be verified reliably.