• Journal of Korean Society of Transportation
• /
• v.32 no.5
• /
• pp.503-512
• /
• 2014

In this paper, various tire blow-out force experiment data were collected and analyzed to obtain approximate values of related coefficients such as rolling resistance, self-aligning torque, cornering stiffness, and radial stiffness for the analysis of the motion of vehicles with tire blow-outs. These coefficients related to tire blow-outs were input into a vehicle accident analysis program to simulate and examine the effects of tire blow-outs. Various configurations and velocities of vehicle collisions without tire blow-outs were also used as reference to establish collision events of vehicle collisions with tire blow-outs. For the events, the simulation analysis was performed and collision characteristics were obtained. Consideration of tire blow-outs or damages suggested in this study will greatly contribute to more reliable vehicle accident reconstructions.

• Transactions of the Korean Society of Automotive Engineers
• /
• v.18 no.2
• /
• pp.104-113
• /
• 2010

Domestic insurance claims were statistically investigated to analyze the elderly driver's accident patterns and injury types in side impact crashes. Medical treatment records and accident vehicle damage photos have been surveyed for 5,419 cases. The results of our statistical analysis showed that the thorax injury risk of the elderly drive group is 8.8 and 4.0 times higher than that of the young and middle age group respectively. Diagnosis showed that most thorax injuries were caused by rib fracture. The head injury risk of the elderly female driver group seemed to be higher than that of the younger female driver group, however, statistical test has not been conducted because of the lack of number of samples for elderly female accident.

• Proceedings of the ESK Conference
• /
• 1997.04a
• /
• pp.321-330
• /
• 1997

교통사고로 인하여 정형외과를 찾는 환자 중 60%정도가 경추부 상해 때문이나 이에 대한 보호장구개발은 미흡한 실정에 있다. 자동차 충돌사고시의 경추부 상해는 대 부분이 후면 충돌로부터 기인하며 특히 차체의 변형이 적은 저속충돌시에도 경추부의 연질 조직이 상하는 편차성 상해가 쉽게 발생된다. 본 논문에서는 이러한 편타성 상 해를 보다 근본적으로 분석하기 위하여 활차 실험과 그에 대한 컴퓨터 시뮬레이션 결 과를 소개하였다. 현재 진행 중인 본 연구를 통하여 아직까지 규명되지 않은 경추부 의 하중 경로와 상해기구를 파악하고자 하며 이를 바탕으로 보다 인체공학적인 시트 설계에 필요한 기반 기술을 확보하고자 한다.

• The Journal of The Korea Institute of Intelligent Transport Systems
• /
• v.12 no.3
• /
• pp.65-77
• /
• 2013

Recent advanced sensors and communication technologies have been widely applied to advanced safety vehicle (ASV) for reducing traffic accident and injury severity. To apply the advanced safety vehicle technologies, it is important to quantify the 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), and applied the methodology to lane departure warning system (LDWS) and automatic emergency braking system (AEBS) which are typical advanced driver assistant systems. When the proposed methodology is applied to 2008-2010 gyeonggi-province crash data, LDWS would reduce about 10~14% of relevant crashes such as head-on, run-off-the road, rollover and fixed-object collisions on the road. In addition, AEBS could potentially prevent about 50% of total rear-end crashes. The outcomes of this study support decision making for developing not only vehicular technology but also relevant safety policies.

• Journal of the korean Society of Automotive Engineers
• /
• v.23 no.4
• /
• pp.23-31
• /
• 2001

• Journal of the Korea Academia-Industrial cooperation Society
• /
• v.22 no.1
• /
• pp.402-408
• /
• 2021

Vehicle engineering analysis in the event of an accident caused by a car built on mechanical design has not been investigated in-depth but relies on the subjective experience knowledge of the investigator. This study analyzed the correlation between the speed, progress, steering, and braking before impact, which is consistent with the final stop position, by drawing a site situation chart using the CAD (CAD) program and repeating 250 crashes using the PC-Crash program. The following situations were investigated: lower impact velocity; greater impact speed of the vehicle, which is not affected significantly by the departure angle; higher vehicle speed, such as the effective impact velocity, after the impact; higher vehicle speed; and lower vehicle speed. (Ed note: I am unsure what you are saying here. It appears contradictory and not a complete sentence. Please check the changes.)The simulation results of this study identified the process of returning to the magnetic progression lane after recognizing the opposite porter while Mighty was carried out on the uphill left-curve section in a position that crossed the center line, and the collision of the porter's front left side, pushing the porter in the right diagonal direction and making the front stop towards approximately 11 o'clock.

• Transactions of the Korean Society of Automotive Engineers
• /
• v.24 no.6
• /
• pp.724-729
• /
• 2016

This case study carried out a rear-end collision accident analysis and physical simulation of an SUV and passenger car. The speed of the SUV by physical analysis is 71 ~ 87 km/h, while the speed of the passenger car is 6 ~ 22 km/h. Simulation results showed the optimal speed conditions for the SUV was 71 km/h, and 7 km/h for the passenger car. Simulations can be verified for the collision analysis. The findings of this study are expected to increase the reliability of accident reconstructions.

• Journal of the korean Society of Automotive Engineers
• /
• v.5 no.1
• /
• pp.1-8
• /
• 1983

자동차의 대중화에 따른 자동차교통량의 증가는 교통사고의 증가를 가져 왔으며 이것을 방지하기 위한 여러 대책이 검토되어 왔다. 특히 미국, Europe제국, 일본 및 호주 등과 같은 자동차 선진 국에서는 자동차에 기인하는 안전, 배기, 굉음 등이 사회환경에 미치는 영향, 즉 자동차가 사회에 미치는 마이너스면을 가능한 한 줄이기 위해 일찍부터 자동차에 관한 각종법규가 제정, 정비 되어 왔다. 또한 근년의 석유위기로 인하여 에너지의 국가적인 절약을 목적으로, 자동차의 연료 경제성에 관한 법규도 제정되었다. 자동차의 기술개발 중에서 안전성을 확보하기 위한 제연구 및 그 우선도는 높은 비중을 차지하게 되었으며, 그 결과 자동차의 안전기술은 매년 비약적으로 진보하여 사고회피성능, 충돌시의 탑승자보호성능, 화제대책등 각 분야에 걸쳐 많은 발전을 하여 왔다. 안전성을 높이기 위해, 차체의 강도를 높이면 중량이 증가하여 연비가 나빠지게 되며, 또 배출gas가 악화된다. 즉 여러 요인이 상호간섭 하여 영향을 주게 되므로 법규의 내용을 지키 기에 많은 어려움이 있다. 따라서 비상한 연구와 노력이 필요하다. 특히 최근에는 자동차가 인 간사회에 미치는 영향이 크고 자동차(특히 승용차)가 기술이나 지식, 경험에 있어서 그다지 숙 련되지 않은 사람들도 사용하는 대중상품화되어 각종의 법규제도 점점 강화되어 가는 경향이 있다. 따라서 각국의 법규에 일치하면서 사회나 구입자의 요구에 부음하고 구내자동차의 수출을 촉진시키기 위해서는, 각국법규에 대한 면밀한 검토와 이에 대한 대응책이 필요하다. 여기서는 자동차의 안전에 관한 개요 및 이에 관련된 각국의 법규를 개략적으로 소개하고자 한다.

• Journal of KIISE:Software and Applications
• /
• v.26 no.11
• /
• pp.1324-1331
• /
• 1999

물체의 공간에서의 운동을 다루는 공간 추론의 연구에서 충돌을 이해하는 것은 중요하다. 본 논문에서는 정성적 충돌 이론과 추론 기법을 소개하고자 한다. 충돌 해석에 있어 관련된 물체의 공간적 속성과 운동방향의 상호작용을 분석하여 충돌로 인한 힘과 운동 방향의 전달을 계산하였다. 추론 과정에 있어서는 충돌이 갖는 특성인 불연속적인 변화에 대한 분석과 회전 운동으로 인한 변화의 분석이 소개되었다. 제안된 충돌 이론과 추론 기법은 구현되어 자동차 충돌 사고의 충돌에 적용되어 유효성을 입증할 수 있었다. Abstract Understanding collision is important in spatial reasoning problems that study the motions of objects. This paper introduces qualitative collision theory and reasoning techniques. Force and motion transfers are computed by analyzing the interactions of the spatial properties and motions of the objects. This paper also presents inference techniques for handling discontinuous changes and angular changes by rotation. These theories and inference techniques are implemented and applied to real car-to-car collision accidents. The test results verify the reliabilities of our techniques.

• Transactions of the Korean Society of Automotive Engineers
• /
• v.12 no.2
• /
• pp.205-214
• /
• 2004

This paper presents design concepts, specifications and performances of a newly developed Black Box, the reconstruction analysis tool with the records, and results of validation tests. The Black Box can detect crash accidents automatically, and record the vehicle's motion and driver's maneuvers during a pre-defined time period before and after the accident. The items of the Black Box included the acceleration, yaw-rate, vehicle speed, engine RPM, braking application, steering and several digital inputs for recording driver's maneuvers. To detect the accident-related-crash, it is important to understand characteristics of the crash signal, which are much different from those of normal driving. Therefore, analytical considerations should be taken in designing pre-filtering circuits and selecting appropriate parameters for identifying crash accidents. And, it is necessary to select proper combination of motion sensors and design proper pre-filtering circuits in order to describe the vehicle's motion. The analysis algorithms were developed and implemented which can perform accurate detection of crash accidents, simulating pre-crash trajectories, and calculating parameters for reconstruction analysis of crash accidents. The developed Black Box was installed on passenger cars and several types of validation tests were conducted. Through the tests, the accuracy of the recorded data and usefulness of the analysis tool for reconstruction have been validated.