첨단안전자동차 안전성 평가기술 개발 연구(2단계)

이은덕(EunDok Lee),이가영(GaYeong Lee),유영곤(YoungGon Yu),강병도(JaeKon Shin),신재곤(ByungDo Kang),이재완(JaeWan Lee) 대한기계학회 2015 대한기계학회 춘추학술대회 Vol.2015 No.11

Like many industrialized countries, the Republic of Korea (ROK) has implemented policy and research aimed at reducing the number of casualties caused by traffic accidents. For example, ROK launched the project titled “Reduce traffic casualties by half in 10 years” in 2008, Sweden introduced the Vision Zero Policy in the late 1990s, and other European Union members have launched similar projects aimed at reducing traffic accident fatalities by between 30 to 50 percent. To reduce the number of casualties from road accidents requires improvements to vehicles, road and traffic managements systems. To expedite this process Intelligent Transport System has been adapted and implemented to the vehicles and road systems. Vehicles with advanced safety features will be expected to reduce or prevent accidents which drivers cannot not respond to or perceive. To date, there has been insignificant research into the effective performance of vehicles with advanced safety features. The lack of assessment procedures has impeded the public acceptance of vehicles with advanced safety features. The Development of Assessment Technologies for Advanced Safety Vehicles has been introduced for the promotion of advanced safety vehicles. The project involves the development of assessment technologies for advanced safety vehicles. This paper shows the development of assessment methods for passive and active safety technologies.

첨단안전자동차의 국제안전시험 적용을 위한 무인 평가 시스템 개발 - Part Ι

김영일(Youngil Kim),이승환(Seunghwan Lee),소민우(Minwoo Sho),권재준(Jaejoon Kwon),홍태욱(Taewook Hong),박기홍(Kihong Park) 한국자동차공학회 2014 한국자동차공학회 부문종합 학술대회 Vol.2014 No.5

The collision avoidance system, a component of the active safety system in automobiles, is constantly developing to reduce further transportation-related fatalities and injuries. As a result, various automotive manufacturers are interested in upholding international safety test standards and the objective evaluation methods for the next prospective active safety system. Under an international paradigm of vehicle safety, notable organizations such as the EURO NCAP will also rate the AEBS (Autonomous Emergency Braking System) in 2014 to assess vehicle safety performance as set out by both domestic and overseas automotive manufacturers. The currently existing active safety assessment system is classified under two significant methods. One is a static test via applying a vehicle-shaped balloon or dummy to the vehicle. The second is a dynamic test involving a vehicle equipped with a dummy by a crane for crash-test simulation. The main advantage of these experiments is that the following equipment can be reused for future crash-test studies. These methods should not, however, be exempt from uncertainty and further limitations. For instance, there is a high probability that environmental sensors attached to crash-test vehicles may miss detection, record a false alarm, or that the dummy, equipped with the crane, cannot be driven in the same way as a real-life vehicle, further hindering overall consistencies of each test. Therefore, in this paper, we have developed an evaluation system utilizing an automated vehicle to overcome such limitations of the conventional active safety assessment system.

첨단 운전자 보조시스템 장착 차량의 브레이크 제동력 분배에 관한 연구

윤필환(Pil-Hwan Yoon),이선봉(Lee-Seon Bong) 한국산학기술학회 2018 한국산학기술학회논문지 Vol.19 No.11

세계 각국 정부는 자동차 안전성 향상을 위한 첨단 운전자 보조시스템(ADAS, Advanced Driver Assistance System)에 대해 연구 지원 및 정책을 시행하고 있다. 이러한 노력으로 교통사고 사상자수는 지속적으로 감소하고 있다. 그러나 국내 교통사고 사상자 수는 OECD 35개국 가운데 최하위이며, 사망률은 31위를 기록하고 있다. 교통사고는 사고의 원인에 따라 차대차(V2V, Vehicle to Vehicle), 차대사람(V2P, Vehicle to Pedestrian), 차량단독과 같은 세 가지 유형으로 분류된다. 사고원인은 운전자의 인지, 판단, 조작 등의 실수로 인하여 발생한다. 이러한 이유로 사고 감소 및 예방을 위해 제안된 것이 ADAS이다. 그리고 현재 자동차 산업계에서는 각종 안전장치를 개발하고 있으나, 성능검사를 위한 실차시험은 제한적이며 위험성을 동반하고 있다. 따라서 본 연구에서는, 제한적인 실차시험의 극복을 위해 브레이크 제동력 평가 기술에 관한 시험평가 방법의 국제표준을 검토하고, 제동력에 관한 이론식과 제어 알고리즘을 제안한 뒤 이를 실차시험으로 비교하여 타당성을 검증하였다. 이 결과는 ADAS의 기능에 따른 제동력을 확인 할 수 있으며, 개발단계에서 제안한 이론식으로 경향성 예측이 가능해져 실차시험의 위험성을 감소시킬 수 있을 것으로 판단된다. Many countries have provided support for research and development and implemented policies for Advanced Driver Assistance Systems (ADAS) for enhancing the safety of vehicles. With such efforts, the toll of casualties due to traffic accidents has decreased gradually. Korea has exhibited the lowest toll of casualties due to traffic accidents and is ranked 32nd in mortality among the 35 OECD members. Traffic accidents typically fall into three categories depending on the cause of the accident: vehicle to vehicle (V2V), vehicle to pedestrian (V2P), and vehicle independent. Most accidents are caused by drivers" mistakes in recognition, judgment, or operation. ADAS has been proposed to prevent and reduce accidents from such human errors. Moreover, the global automobile industry has recently been developing various safety measures, but on-road tests are still limited and contain various risks. Therefore, this study investigated the international standards for evaluation tests with regard to the assessment techniques in braking capability to cope with the limitations of on-road tests. A theoretical formula for braking force and a control algorithm are proposed, which were validated by comparing the results with those from an on-road test. These results verified the braking force depending on the functions of ADAS. The risks of on-road tests can be reduced because the proposed theoretical formula allows a prediction of the tendencies.

레이저스캐너를 이용한 차량저속운전보조장치의 설계

문희창(Hee Chang Moon),손영진(Young Jin Son),김정하(Jung Ha Kim) 제어로봇시스템학회 2008 제어·로봇·시스템학회 논문지 Vol.14 No.8

This paper describes a vehicle low speed driving assistant (VLDA) system that is composed of laser scanner. This vehicle is designed for following lead vehicle (LV) without driver’s operation. The system is made up several component systems that are based on unmanned ground vehicle (UGV). Each component system is applied to use advanced safety vehicle developed to complete UGV system. VLDA system was divided into vehicle control system and obstacle detecting system. The obstacle detecting system calculate distance and angle of LV and transmit these data to vehicle control system using front, left and right laser scanners. Vehicle control system makes vehicle control values such as steering angle, acceleration and brake position and control vehicle’s movement with steering, acceleration and brake actuators. In this research, we designed VLDA system like as low speed cruise control system and test it on real road environments.

Smart Car 기술 동향 및 미래 기술 전망

김두겸(Dookyum Kim),박민우(Minwoo Park),기석철(Seokcheol Kee) 한국자동차공학회 2011 한국자동차공학회 학술대회 및 전시회 Vol.2011 No.11

Recently, electronic units of vehicle has been increased cause trend of car technology moves from conventional performance to environment, safety and convenience. And requirement of fusion which includes IT information, vehicle, mobile device from customer has been increased. For this reason, vehicle and IT company such as BMW-Google, Hyundai/KiaMotors-Microsoft cooperate each other and smart car technology which includes vehicle and IT becomes keyfactor of vehicle market of next-generation. Korea could be very competitive in the smart car technology cause IT, vehicle, energy technology is advanced. In this paper, trend of smart car technology, key factor of smart car and future trend of smart car will be explained.

첨단안전자동차의 국제안전시험 적용을 위한 무인 평가 시스템 개발 - PartⅡ

강태완(Taewan Kang),노태호(Taeho Noh),조환성(Hwanseong Jo),문병찬(Byungchan Moon),권재준(Jaejoon Kwon),정재일(Jayil Jeong),박기홍(Kihong Park) 한국자동차공학회 2015 한국자동차공학회 부문종합 학술대회 Vol.2015 No.5

The collision avoidance system like AEB(Autonomous Emergency Braking) and FCWS(Forward Collision Warning System), a component of the Active Safety System in automobiles, is constantly developing to reduce further transportation-related fatalities and injuries. As a result, various automotive manufactures are interested in evaluating reliability of active safety systems and establishing international safety test standards for objective evaluation. For example ISO(International Organization for Standardization) is promoting the standardization of assessing advanced active safety systems and since 2014 active safety system such as AEBS(Autonomous Emergency Braking System) rating test is performed in Euro NCAP. The current existing methods are active safety assessing via applying a vehicle-shaped Balloon Car to the vehicle or by Dummy Car, a crane for crash-test simulation, for imitating a real situation. But it is impossible to copy the assessment with same condition, especially dynamic characteristic of Dummy Car traveling by crane and real car are critically different. Therefore assessment system using self-driving car is developed for assessment with same condition in this study. For verifying developed assessment system, cut-in scenario and braking scenario with 0.2g deceleration is executed.

첨단자동차의 전자파 내성 실험 환경에 관한 연구: 카메라 센서를 중심으로

우현구 사단법인 한국자동차안전학회 2020 자동차안전학회지 Vol.12 No.4

Recently, automobile industries have developed ADAS, smart cars, connected cars, automated driving systems, which use a variety of sensor systems - ultrasonics, cameras, lidars and radars - and communication systems. It is necessary to examine the electromagnetic immunity of vehicles equipped with the sensor systems due to the fact that the normal operation of those systems is very important to the safety of the vehicles. The electromagnetic immunity tests are carried out in an electromagnetic semi anechoic chamber, which is cut off from the outside. It is difficult to create test environments in which the camera sensor systems of vehicles work properly in the test chamber. In this study, test jigs were designed and tested and as a result they are shown to be effective to create test environments for electromagnetic immunity tests of vehicles equipped with camera sensors. We also proposed additional safety standards for immunity tests of vehicles with camera systems that currently do not exist.

다목적함수 최적화를 이용한 PTL 시스템의 힌지 포인트 설계에 관한 연구

송종원(Jongwon Song),정충민(Choongmin Jeong),정병대(Byeongdae Jeong),송아영(AhYeong Song),윤근하(Gunha Yoon),서명원(Myungwon Suh) 한국자동차공학회 2012 한국자동차공학회 부문종합 학술대회 Vol.2012 No.5

A smart vehicle represents an ASV(advanced safety vehicle) which can supplement limitations on sight and perception of driver and passenger with a basis of Active Vehicle Control Technology. Thus, it is necessary to develop an innovative technology which is able to increase the safety and convenience of existing vehicles. The thesis is a study to design PTL(Power Trunk Lid) System by Multi-Objective Optimization. It is analyzed by Taguchi design of experiment with the table of orthogonal arrays, and the optimum design point is chosen on the base of the aforementioned analysis which applies Multi-Objective Optimization. PTL System is very important in terms of accepting demands of customers. However, it is currently dependent on the technology of advanced foreign enterprises. PTL System design can apply to the outcome. Furthermore, the satisfaction with costs and customers’ demands and the decrease of costs can be expected as well.

AE-MDB 시험과 EuroNCAP 측면 시험 비교 연구

장은지(Eun-ji Jang),김요셉(Joseph Kim),범현균(Hyen-kyun Beom) 한국자동차공학회 2009 한국자동차공학회 학술대회 및 전시회 Vol.2009 No.11

In response to enhanced regulation of vehicle safety, manufactures have improved vehicle design and stiffness. ECE Regulation 95 is a side impact test for European regulation and so be EuroNCAP side impact test for market requirement. Two tests are nearly same test method. However various researches report that ECE Regulation 95 barrier face does not reflect evolving vehicle design and impact performance. EEVC(European Enhanced Vehicle-safety Committee) Working Group 13 has recently made a proposal for an improved barrier face, AE-MDB(Advanced European-Mobile Deformable Barrier). In this paper, 2 tests -AE MDB, EuroNCAP Side test - were carried out and compared with current product vehicles with similar structure. The weight of AE-MDB is 550kg heavier and its deformable barrier face is stiffer than current EuroNCAP barrier. As a result, AE-MDB test shows higher vehicle velocity and dummy injuries (HIC36, rib compression, pelvis force) than EuroNCAP. However the differences of two test results were not that big due to airbag to protect dummy head and chest. Passenger dummy head contacted to c-pillar and injury was higher than driver dummy. So it needs to be installed restraint system to protect dummy head and chest like driver dummy. B-pillar intrusion of AE-MDB test increased 14% and rear of front door intrusion was increased.

자동차 HUD의 제어 ECU 개발에 대한 연구

전대홍(Daehong Jeon),오준규(Junkyu Oh),강호준(Hojoon Kang),변동규(Dongkyu Byeon),손수락(Surak Shon) 한국자동차공학회 2009 한국자동차공학회 부문종합 학술대회 Vol.2009 No.4

By the increase of the interests on the Advanced Safety Vehicle (ASV) recently, the research on the Head-Up Display (HUD), which is the device to improve driver's sight, has been going on actively. The one of benefits of HUD is that it improves the driver's sight by showing necessary information by the image on the front glass while driver is driving to improve the driving and safety. HUD is structured with the optical device, ECU, and Display part, and also it is necessary to develop the proper ECU to automobile specifications in order to adapt to automobiles. This paper discusses about the necessary ability categories and quality elements, and we made and tested in the simulator, which has same condition as real automobile situation.