http://chineseinput.net/에서 pinyin(병음)방식으로 중국어를 변환할 수 있습니다.
변환된 중국어를 복사하여 사용하시면 됩니다.
주행모드 및 운전자, 환경변수에 따른 SOC, EV/HEV 가변제어
김정은(Jeongeun Kim),오종한(Jonghan Oh),어정수(Jeongsu Eo) 한국자동차공학회 2011 한국자동차공학회 학술대회 및 전시회 Vol.2011 No.11
Recently, in accordance with the increased interest of consumer in fuel efficiency due to the phenomenon of high oil price, complaints against actual fuel efficiency in the road in comparison with the certified fuel efficiency have been raised frequently. Especially in case of the hybrid vehicle which is highly popular for the reason of its high fuel efficiency compared with that of existing gasoline car, deviation in the fuel efficiency will be higher compared with that of gasoline car in accordance with the driving mode (downtown/highway), propensity of driver (wild/mild) and external environmental condition (gradient/temperature/altitude). To solve them, this paper developed a method so that the SOC (state of charge), EV/HEV transition point can be controlled variably in accordance with the driving mode, propensity of driver and external environmental condition by making the most of characteristics of hybrid. Through it, efficient engine operating point could be secured even in the driving situation under severe condition while maintaining a fixed SOC value, and it was verified that there are effects of increases in the average fuel efficiency and reduction of deviation in the fuel efficiency (about 2.5 kpl, 10~20%) through HILS (hardware-in-the-loop-simulation) validation. Application of this developed logic to 12 MY YF/TF hybrid vehicles has been completed.
병렬형 하이브리드 자동차의 엔진 동력을 이용한 발진 주행 동적 해석 모델 개발 및 엔진 클러치 제어
서호원(Howon Seo),김기영(Kiyoung Kim),임원식(Wonsik Lim),차석원(Suk Won Cha),정석민(Seokmin Jeong),오종한(Jonghan Oh) 한국자동차공학회 2013 한국자동차공학회 부문종합 학술대회 Vol.2013 No.5
When a traction motor of a parallel type HEV(Hybrid Electric Vehicle) could not generate torque to launch, the HEV should start only with engine power. Because the engine rotates with idle speed the relative rotational speed of clutch input and output shaft starts from engine idle speed and ends to zero when clutches engaged. In this study a method for control pressure command of engine clutch is proposed to satisfy desired clutch engagement time and decrease shock. A dynamic model of a parallel type HEV powertrain (including hydraulic clutch control components) is constructed to validate the method proposed.