http://chineseinput.net/에서 pinyin(병음)방식으로 중국어를 변환할 수 있습니다.
변환된 중국어를 복사하여 사용하시면 됩니다.
차량의 Spinout 관련 시험 및 판단기준에 관한 연구
정명철(Myungchul Jung),장진희(Jinhee Jang) 한국자동차공학회 2006 한국자동차공학회 춘 추계 학술대회 논문집 Vol.- No.-
In spite of improvement of vehicle safety and stability, a number of highway fatalities is increased to the highest level. Approximately 20% fatal crash and multiple accidents are caused by loss of control like rollover and spinout. Active chassis control researches are proceeding for the control of the vehicle state. In this paper, vehicle's spinout performance and correlation with ESC system to prevent spinout have studied. ESC system is a vehicle dynamics control system that supports the driver in critical driving situations. Nowadays, most of SUV and passenger car are equipped with ESC. NHTSA, IIHS, European and Japanese ESC effectiveness studies all show vehicles equipped with ESC could reduce the single vehicle collisions and fatalities below 35%, up to 65% for SUVs in USA. In August 2006, NHTSA has announced the proposed FMVSS No. 126, ESC Systems. One of the primary objectives of FMVSS No. 126 is to develop a way to objectively assess ESC effectiveness and test metrics. Sine with Dwell test, one of the test maneuver of spinout and information of test metrics are presented in this paper.
차량의 Spin-out 영향을 고려한 UCC 시스템 성능향상을 위한 제안
정명철(Myungchul Jung),오승규(Seungkyu Oh),이종일(Joingil Lee),노지훈(Jihoon Roh),김영우(Youngwoo Kim),김형수(Hyuoungsoo Kim),김인동(Indong Kim),장진희(Jinhee Jang) 한국자동차공학회 2009 한국자동차공학회 부문종합 학술대회 Vol.2009 No.4
In this paper, a proposal for performance improvement of unified chassis control(UCC) system considering the spin-out effect of the vehicle has been presented. In the UCC system, ESC (Electronic Stability Control), AFS (Active Front Steering), and EAS (Electronic Air Suspension) are included. In this paper, main focus on the test is concentrated into spin-out aspect of the vehicle because spin-out of the vehicle is a main reason to occur fatal injuries like a secondary collision in the highway. NHTSA has announced that Sine with Dwell Maneuver is the basis test to pass for the NHTSA FMVSS-126 regulation and this maneuver is severe enough to produce spin-out for most vehicles without ESC. With such reason, the Sine with Dwell maneuver was selected to evaluate spin-out effect of the vehicle. Before the UCC system test, each independent system performance check has been done by benchmarking test. Base on the test results, it is proposed that control strategy of each subsystem and UCC system. The final purpose of this paper is to improve vehicle performance with overcoming each sub-system performance limit and reduce spin-out effect on the UCC vehicle.
Tire 공기압 변화를 고려한 향상된 UCC 시스템 제안
정명철(Myungchul Jung),안진현(Jinhyun Ahn),장진희(Jinhee Jang),김인동(Indong Kim) 한국자동차공학회 2009 한국자동차공학회 학술대회 및 전시회 Vol.2009 No.11
본 논문에서는 Tire의 공기압 변화를 고려한 향상된 UCC 시스템을 제안하였다. UCC 시스템은 ESC(Electronic Stability Control), AFS(Active Front Steering), EAS(Electronic Air Suspension)로 구성되어있다. 본 논문은 Tire 공기압 변화에 따라 차량의 주행 성능 변화를 확인하여 UCC 성능 향상에 주된 목적이 있으며, 이를 위하여 차량의 동적 안정성에 가장 크게 영향을 주는 ESC 시스템의 성능 확인에 초점을 두었다. NHTSA는 ESC성능 검증을 위한 공식 Test로 Sine with Dwell Test를 공표하였으며, 이는 북미법규(FMVSS No. 126)와 서유럽 법규 (GTR No.8)에도 채택되었다. 이와 같은 이유로 본 논문에서는 Tire 공기압에 따른 ESC 성능에 영향을 주는 인자를 확인하기 위하여 Sine with Dwell Test를 수행 하였으며, 시험결과를 바탕으로 Tire 공기압 변화를 고려한 UCC 시스템 성능 향상에 대한 기본 개념에 대하여 제안하였다. 또한 본 연구의 기본 개념은 2012년 EU지역에서 의무장착 될 TPMS 시스템과 더불어 차량의 안정성 향상에 기여할 것으로 기대된다.
Sine with Dwell Test 최종 법규 동향과 실제 시험 결과
정명철(Myungchul Jung),장진화(Jinhee Jang) 한국자동차공학회 2007 한국자동차공학회 춘 추계 학술대회 논문집 Vol.- No.-
On April 2007, NHTSA has announced the final rule of FMVSS No. 126, ESC Systems. Passenger cars, multipurpose passenger vehicles (MPVs), trucks, and buses are applied by this standard that have a gross vehicle weight rating (GVWR) of 4,536 ㎏ (10,000 pounds) or less to be equipped with an ESC system. By MY 2012, Vehicles are required to be equipped with an ESC in 100 percent of light vehicles and to be passed a dynamic test, Sine with dwell test. ESC systems are used automatic computer-controlled braking of individual wheels to assist the driver in maintaining control in critical driving situations. The main focus of Sine with Dwell test is evaluation of ESC performance to pass new regulation, FMVSS No. 126 final rule. In this paper, analyzing comparison with the final rule and the NPRM, actual application of Sine with Dwell test and test results are presented.