http://chineseinput.net/에서 pinyin(병음)방식으로 중국어를 변환할 수 있습니다.
변환된 중국어를 복사하여 사용하시면 됩니다.
양호림(Yang, Ho-Rim),김남욱(Kim, Nam-Wook),안국현(Ahn, Kuk-Hyun),조성태(Cho, Sung-Tae),임원식(Im, Won-Sik),이장무(Lee, Jang-Moo) 한국신재생에너지학회 2006 한국신재생에너지학회 학술대회논문집 Vol.2006 No.06
최근 여러 연구에서 다양한 종류의 멀티 모드 하이브리드 동력 전달계가 제안되고 있다. 멀티모드 동력전달계는 두 개 이상의 다른 유성기어식 하이브리드 시스템으로 이루어져 있으며 클러치를 사용하여 각 상황에 유리한 유성기어 시스템을 사용하여 주행한다. 각 유성기어 시스템의 단점들을 보완할 수 있기 때문에 단일 모드를 사용하여 주행했을 때보다 여러 면에서 높은 성능을 보인다. 일반적으로 유성기어식 하이브리드 시스템은 크게 입력, 출력, 복합 분기식의 세 가지 종류로 나눌 수 있는데 이 논문에서는 입력 및 복합 분기식 구조의 특징을 분석해 보았다. 또한 시뮬레이션을 통해 입력, 복합 분기식 구조를 사용하여 듀얼 모드를 구성하였을 때 단일 모드와 비교하여 어느정도의 성능을 보이는지 알아보았다.
양호림(Yang, Ho-Rim),김남욱(Jo, Nam-Uk),조성태(Cho, Sung-Tae),임원식(Lim, Won-Sik),차석원(Cha, Suk-Won) 한국신재생에너지학회 2006 한국신재생에너지학회 학술대회논문집 Vol.2006 No.11
In the recent studies, various types of multi mode electric variable transmission for hybrid electric vehicle have been proposed. Multi mode electric variable transmission consists of two or more different type planetary gear hybrid powertrain system(PGHP), which can change its power flow type by means of clutches for improving transmission efficiencies. Generally the power flows can be classified into three different types such as Input split, output split nd compound split. In This paper, we present velocity and torque equations of the input-split powertrain and analyze its optimal Performances. There are six combinations of the input-split powertrain, each combination has various lever length. We find optimal planetary gear ratios for fuel economy and acceleration performance, and compare performances of each combination.
양호림(Yang, Horim),전순일(Jeon, Soonil),박영일(Park, Yeongil),이장무(Lee, Jangmoo) 한국신재생에너지학회 2005 한국신재생에너지학회 학술대회논문집 Vol.2005 No.06
In this research, we presented the regenerative braking algorithms considering fuel economy and charging oftenness, and also analyzed these algorithms. The first algorithm was the regenerative braking algorithm for the ideal recovery of kinetic energy. The HEV using this algorithm had high fuel economy, on the other hand frequent charging was occurred. The second algorithm was the regenerative braking algorithm for reduction of the charging oftenness. Using this algorithm, the HEV had the low charging oftenness and small loss of fuel economy.
입력 분기식 하이브리드 동력전달계의 배터리 사용 최적화
양호림(Horim Yang),박영일(Yoengil Park),차석원(Sukwon Cha) 한국자동차공학회 2007 한국자동차공학회 춘 추계 학술대회 논문집 Vol.- No.-
It is very important for the fuel economy of hybrid electric vehicle to determine when a battery should be used. Optimal battery use can be determined by the optimization methods such as Dynamic Programming and Pontryagin’s Minimum Principle, however these methods needs so much times. In this paper, the variable FCpp was proposed, which represents the efficiency of a battery use. The lower FCpp means that using battery is more efficient. It is possible to conclude the times of battery use by comparison of FCpp at various situation, and also determine the cruise mode of hybrid electric vehicles.
Tip-in 충격 해석을 통한 PT 마운팅 시스템 특성 영향도 연구
양호림(Horim Yang),장욱진(Wookjin Jang) 한국자동차공학회 2010 한국자동차공학회 학술대회 및 전시회 Vol.2010 No.11
Tip-in shock is the oscillation occurred by a sudden push of the accel pedal. The oscillation is in the 2-10 ㎐ range, which are the most sensitive frequencies for the human body, and the driver/passenger experiences a great discomfort if the amplitude of the oscillation is too large. Various factors affect the amplitude of tip-in shock, and this paper focuses on the influence of automotive powertrain mounting system among them. An analysis model for evaluating the influence of powertrain mounting system characteristics on the amplitude of tip-in shock has been developed and evaluated, and will be presented in this paper.
양호림(Horim Yang) 한국자동차공학회 2015 한국자동차공학회 부문종합 학술대회 Vol.2015 No.5
To improve vehicle fuel economy, it is important to develop the transmission having high efficiency. And highly accurate and convenient analysis model is necessary for developing efficient transmission system. This paper describes the development of the model for analyzing automatic transmission system efficiency. Firstly, the friction models of components in automatic transmission are developed, and its accuracy is verified by a comparison between test and analysis results. Secondly, 8-speed automatic transmission system is developed by arrangement and connection of friction component models for analyzing system efficiency. Finally, by a comparison to test results it is verified that system model as well as component model have high accuracy.
양호림(Horim Yang),김범수(Beomsu Kim) 한국자동차공학회 2011 한국자동차공학회 부문종합 학술대회 Vol.2011 No.5
Recently increasing number of gears for automatic transmission is main trend for development of automatic transmission, and its main target are a further significant reduction in fuel consumption and emissions, good driving performance. Surely increasing number of gears enables to reduce fuel consumption and good driving performances, because it also increases the number of available engine operating points, and enables engine to operate in more efficient states. In addition to these merits, increasing number of gears necessarily results in system loss, for example, a growth of cost and weight of automatic transmission and an increase of drag torque of friction components. To determine a reasonable number of gears, the fully consideration of these effects of increasing number of gears for automatic transmission is necessary. The analysis software for evaluating system performances was developed, and the analysis on the effects of fuel economy, acceleration performance, drag torque and hybridization was presented.
특정 주행 사이클과 임의의 주행 사이클에서 병렬형 하이브리드 차량의 용량 매칭 기법
양호림(Horim Yang),박영일(Yeong-il Park),이장무(Jang-moo Lee) 한국자동차공학회 2003 한국자동차공학회 춘 추계 학술대회 논문집 Vol.- No.-
In this study, we presented two methods for deciding the component sizes of HEV. The first mehod is based on the simulations upon specific driving cycles. It uses fuel economies and acceleration performances of the vehicle from the simulations. The second method uses the fuel economy improvement estimation to the power demand and does not depend on certain driving cycles. The two methods were applied to find the best component combination of a given HEY.<br/>
복합 유성기어를 이용한 듀얼모드 하이브리드 자동차의 가속성능 최적화
양시우(Yang, Si-U),김남욱(Kim, Nam-Wook),양호림(Yang, Ho-Rim),박영일(Park, Yoeng-Il),차석원(Cha, Suk-Won) 한국신재생에너지학회 2006 한국신재생에너지학회 학술대회논문집 Vol.2006 No.11
Accelerating ability is one of the most important performance of the vehicle. Unlike conventional internal combustion vehicles and power-assist hybrid vehicles, the maximized acceleration of dual mode hybrid vehicles is not simply. achieved by maximizing engine or motor torque Because of the dynamic stability of planetary gear, speeds and torques control of engine, motor 1 and motor 2 is essential and according to control value, acceleration performance is changed There are two control values which are velocity and torque for each component totalling six. These six values can be variables for an objective function. However, because three velocity variables can be regarded as only one variable speed ratio and the remaining three torque variables can be solved analytically, without complicated numerical algorithm the solution for the objective function can be obtained. This optimized solution shows the best performance possible to the specified dual mode system.