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타이어 설계인자에 따른 EPS 조향 성능 영향도 분석 시뮬레이터 개발
정승환(Seung-Hwan Chung),김정민(Jeong-Min Kim),김종민(Jong-Min Kim),배철용(Chul-Yong Bae),권성진(Seong-Jin Kwon),이봉현(Bong-Hyun Lee) 한국자동차공학회 2013 한국자동차공학회 부문종합 학술대회 Vol.2013 No.5
This paper presents on approach to optimize vehicle handling performance analysis simulator for EPS(Electric Power Steering) vehicle. This is applied to the tire design parameter for determine the effect of EPS vehicle steering stability. The verification experiment involved the vehicle test and simulation, and the test results was compared with three different tires and two driving conditions respectively. It is found that the some tire design parameters are affected by handling performance. Also, the results of vehicle test and simulation show that the similar tendency, and we have identified the handling performance impact of EPS vehicle in laboratory without proving ground vehicle test, according to the change of tire design parameter. The proposed method produces more accurate results and enables the development engineer to develop suitable tire in the early pretesting phase.
상용차량용 차량자세제어시스템 기능 및 제어 성능 평가에 관한 연구
정승환(Seung-Hwan Chung),권성진(Seong-Jin Kwon),김성섭(Sung-Sub Kim),이봉현(Bong-Hyun Lee) 한국자동차공학회 2014 한국자동차공학회 학술대회 및 전시회 Vol.2014 No.11
The ESP(Electronic Stability Program) system is a safety feature that detects and prevents vehicle skids and the ESP can help keep the driver from losing control of the vehicle when driving on slippery roads. This paper presents a vehicle driving test methods and results of the commercial vehicle ESP system. The ESP control algorithms are divided into two main categories which are traction control and brake control. From this research, we can estimate the control concept and algorithm of the commercial vehicle ESP system. Also, the ESP effectiveness and performance can be verified from the ESP On/Off test of the bus.
정승환,김종민,권성진,이봉현,Chung, Seung-Hwan,Kim, Jeong-Min,Kwon, Seong-Jin,Lee, Bong-Hyun 한국자동차안전학회 2013 자동차안전학회지 Vol.5 No.1
LKAS(Lane Keeping Assistance System) main function is to support the driver in keeping the vehicle within the current lane. Therefore, this system is able to reduce the driver workload with assisting the driver during driving. In this paper, we presented on study for test procedures and evaluation methods of the LKAS. The vehicle test conducted on straight road, left curve, right curve and four different types of lane under various vehicle speeds. This study proposed the LKAS system test procedures and methods that we are able to identify LKAS driving mechanism and performance.