• Transactions of the Korean Society of Automotive Engineers
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• v.15 no.4
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• pp.1-9
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• 2007

This study proposes a methodology to assess the traffic safety benefits of technical regulation for pedestrian leg. Traffic safety benefit is defined as the injury reduction in this study. Actual accident analysis and simulation experiments using LS-Dyna3d are conducted to establish statistical models for developing the methodology. The relationship between collision speed and parameters of the regulation is explored. An application example of the proposed methodology is also presented for more comprehensive understanding. It is believed that the proposed methodology would be greatly utilized in developing various technologies and policies to protect pedestrian.

• Convergence Security Journal
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• v.16 no.6_2
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• pp.99-107
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• 2016

The purpose of this study is to analyse motor vehicle communication network hacking attacks and to provide its prevention. First, the definition of motor vehicle communication network was provided and types of in-vehicle communication network were discussed. Also, bluetooth hacking attack cases were analysed in order to illustrate dangers of hacking attacks. Based on the analysis, two preventive measures were provided. First, Motor Vehicle Safety Standard Law should be revised. Although the law provides the definition of electronic control system and its standards as well as manufacturing and maintenance for safe driving standards, the law does not have standards for electronic control system hacking prevention and defensive security programs or firmware. Second, to protect motor vehicle communication network, it is necessary to create new laws for motor vehicle communication network protection.

• Journal of Auto-vehicle Safety Association
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• v.14 no.3
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• pp.30-34
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• 2022

The CFT(Cornering Fatigue test) and RFT(Radial Fatigue Test) are tests for evaluating the endurance of the disc and rim region of the wheel. In recent, automobile wheel safety standards have been revised and the applied load and target life criteria are different from existing conditions. The verification evaluation of all wheels requires a lot of time and cost. In this study, the endurance severity of each test was compared through strain-life approach by selecting 4 steel and 8 aluminum wheels.

• Journal of the Korean Institute of Gas
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• v.15 no.2
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• pp.1-8
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• 2011

In this research, the safety trends and technologies of HCNG, a mixture of hydrogen and natural gas, are analyzed. This is an attracting alternative fuels to meet the strengthened automotive exhaust gas emission standards. HCNG is very important opportunities and challenges in that it is available the existing CNG infrastructures, meets the strengthened emission standards, and the technical, social bridge of the coming era of hydrogen. It is essential for the commercialization of HCNG that hydrogen - compressed natural gas blended fuel for use in preparation of various safety considerations included accidents scenario, safety distance, hydrogen attack, ignition sources and fire detectors are examined. Risk assessments also are suggested as one of permission procedure for HCNG filling station.

• Journal of Auto-vehicle Safety Association
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• v.14 no.4
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• pp.106-112
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• 2022

The purpose of this study is to explore ways of improving the motor vehicles safety certification system in preparation for the deployment of Lv.4 or higher autonomous vehicles. In order to effectively achieve the objectives of this study, theoretical and empirical research methodologies were employed, including literature review of prior research, government-published data, etc.; comparative research on legislative cases of other countries regarding motor vehicles safety certification; historical and legal research on domestic systems; legal analysis to explore approaches for improvement, etc. Some argue that the type approval system is needed in preparation for deploying autonomous vehicles, but there are several limitations in moving to the type approval system from the self-certification system currently adopted in Korea. First, there is a possibility that the system may be in conflict with the Korea-U.S. MOU regarding Foreign Motor Vehicles (1988) and the Korea-U.S. FTA (2011); second, there is a risk of undermining the cause of the self-certification system, which is the autonomy of manufacturers; third, the boundary between autonomous vehicles and non-autonomous vehicles is unclear; and fourth, the type approval system may hinder technological competitiveness. On the other hand, considering that the Korea-U.S. FTA and the UNECE IWVTA recognize exceptions to deal with road safety and risks to human health or the environment, and have a pre-certification system for some auto parts such as pressure-resistant containers, it can be said that there is room to introduce the type approval system for supplementation purposes. To improve the motor vehicles safety certification system while ensuring the safety of autonomous vehicles of Lv.4 or higher, the targets of type approval should be defined and the criteria, procedures, etc. for type approval should be established. At the same time, the consistency between motor vehicle-related laws and harmonization with international standards need to be considered.

• Proceedings of the Korean Operations and Management Science Society Conference
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• 1996.10a
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• pp.121-124
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• 1996

본 연구에서는 개선된 계층적 분석과정(AHP)을 사용하여 국산 신형 중형차의 우선 순위를 평가한다. AHP 모형은 외관, 성능, 안전성, 경제성, 영업사원, 사후정비의 주 기준과 39개 세부기준으로 구성된다. 구현의 특징을 (1) 샘플 크기가 작은 그룹의사결정 문제로 한정할 때, 한 의사결정자의 전체 쌍비교 행렬보다는 일관성비율이 한계치 이하의 행렬 만을 고려하였고, (2) 중요도 도출 과정에서 평가기준은 쌍비교 방식을, 대안은 레이팅 기법을 결합하였으며, (3) 그룹 중요도는 일관성 비율의 역수를 사용하였다. 사례 연구로 국내 자동차 판매 영업대표와 운전자를 대상으로 각각 평가기준에 대한 중요도와 레이팅 값을 도출, 3대 경쟁 차조의 우선순위를 비교 분석한다.

• Proceedings of the Korean Society for Noise and Vibration Engineering Conference
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• 1993.04a
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• pp.5-13
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• 1993

최근 인간의 생활을 가장 크게 바꾸어 놓은 수단중 하나가 바로 자동차이며 자동차문화라는 새로운 환경에서의 생활에 점점 더 익숙해져 가고 있다. 한 편 치열해지고 있는 무역전쟁, 경제전쟁에 있어서는 자동차가 가장 큰 주목 을 받고 있으며, 기술의 고도화를 통해 경쟁력을 제고시키는 것이 곧 오늘날 의 국제 경쟁에서 승리 할 수 있는 중요한 관건으로 인식되고 있다. 자동차 기술의 발달 과정은 크게 두 가지 요소의 요구 조건을 만족시키기 위한 노 력의 결과로 점철되어 왔다. 이들은 주위 환경 여건과 소비자의 욕구로 볼 수 있으며, 전자의 경우는 환경 보전과 사회적, 법적 측면에서 요구되는 자 동차의 구조, 성능 기준이고, 후자의 경우는 순수하게 고객 즉 사용자의 입 장에서 본 욕구이다(물론 이들 두 가지가 완전히 독립된 것은 아니다). 따라 서 자동차의 기술 발달 과정에서 두드러지게 나타나는 경향들은 이들 두 가 지 요소에 포함된 특정한 구조나 성능들이 주요 관심사로 되는 것과 부합되 어 나타나기 마련이다. 잘 알려진 바와 같이 최근의 자동차 관련 기술중 관 심의 대상이 되는 것은 공해, 안전, 성능, 경제성 등을 들 수 있으며 이들은 모두 당연히 자동차 산업의 사활을 좌우하는 요소임에 틀림없다.

• Proceedings of the KSR Conference
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• 2010.06a
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• pp.2223-2231
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• 2010

Recently, an important physical device of transportation, such as car, railroad, ship and aircraft has changed into electronic control unit. According to accident reports, the most of car accidents are caused by faults of embedded software loaded to computer control unit. The facts implies that the test to find defects in embedded software haven't performed sufficiently. As a result, it is necessary to establish the test procedures of embedded software based on safety assessment criteria. The objective of this proposal is to provide a unit test procedure complied with the safety assessment criteria for the embedded software. In addition, an effective unit testing procedure and defect analysis methods are proposed and a testing procedure using a safety criteria built-in tool is presented.

• Transactions of the Korean Society of Automotive Engineers
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• v.13 no.3
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• pp.24-34
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• 2005

The automobile seat must satisfy various safety regulations for the passenger's safety. In many design practices, each component is independently designed by concentrating on a single related regulation. However, since multiple regulations can be involved in a seat component, there may be design confliction among the various safety regulations. Therefore, a new design methodology is required to effectively design an automobile seat. The axiomatic approach is employed for considering multiple regulations. The Independence Axiom is used to define the overall flow of the seat design. Functional requirements (FRs) are defined by safety regulations and components of the seat are classified into groups which yield design Parameters (DPs). The classification is carried out to have independence in the FR-DP relationship. Components in a DP group are determined by using orthogonal away of the design of experiments (DOE). Numerical analyses are utilized to evaluate the safety levels by using a commercial software system for nonlinear transient finite element analysis.

• Electronics and Telecommunications Trends
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• v.20 no.6 s.96
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• pp.24-35
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• 2005

지능형 순항 제어 시스템(Adaptive Cruise Control System)은 자동차가 정속을 기준으로 주행중 센서를 활용하여 감지하는 도로 상황에 대한 실시간 정보를 자동차의 전자제어부(ECU)로 연결하여 매 순간 안전상황을 확보하기 위한 조치를 자동으로 취한후 다시 정속 주행으로 복귀할 수 있도록 제어하는 차세대 첨단 자동차 주행용 안전 장치를 통칭하는 개념이다. 본 분석에서는 Global Industry Analysts의 보고 자료(2005.1.)를 바탕으로 시장 전망과 세계 업계의 개요를 소개하여 우리나라의 관련 기술에 대한 길잡이로 활용하고자 한다.