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정태균(Taegyun Jung),채재우(Jaeou Chae) 한국자동차공학회 2005 한국 자동차공학회논문집 Vol.13 No.6
The most typical fuel control devices of motorcycle engines have carburetors, they are simple in structure and reliable in work. Most of the motorcycle engines have used carburetors in the fuel system, but the fuel economy and the emissions of those engines are bad when we compared with automobile engines. According to stricter emission regulations and higher requirements for fuel economy, the application of the carburetor on the motorcycle engines would be limited. In this paper, we studied about the ECU of motorcycle engine controled by indirect method. A new engine system was designed and experiments were carried out. The experimental results for both carburetor type and ECU type were compared. Maximum torque of 1.053kg·m at 6500rpm was measured. The engine torque controled using ECU was increased by 10% compared with the carburetor type.
흡입공기량 간접계측방식의 전자제어화 Motorcycle 엔진 출력 특성
정태균(Taegyun Jung),채재우(Jaeou Chae) 한국자동차공학회 2005 한국 자동차공학회논문집 Vol.13 No.3
Most of the motorcycle engines have used carburetors in the fuel system, because of its simple structure and reliability but the fuel economy and the emissions of those engines are bad when we compared with automobile engines.<br/> To meet with the tighten emission regulations and the higher requirements for fuel economy, the application of the carburetor on the motorcycle engines would be limited. Therefore, it is important to develope a ECU control system for motorcycle engines.<br/> Since the fuel injection system is expensive, it is necessary to decrease the cost of ECU system for motorcycle engines, but the accuracy of the ECU control system should be increased as high as possible. In this paper, we studied about the AFS characteristics of motorcycle engine controled by indirect method.
디젤기관과 촉매코팅필터를 이용한 NOx와 Soot의 동시저감에 관한 연구
채재우(JaeOu Chae),박창하(Changha Park),문승일(Seungil Moon),Vladimir Demidiouk,이대엽(Daeyup Lee),정태균(Taegyun Jung) 한국자동차공학회 2002 한국자동차공학회 춘 추계 학술대회 논문집 Vol.2002 No.5_1
Recently, for the past ten years(1990-2000), the pollutant control of emitting exhaust gas for vehicles with internal engines has became more strict. The main harmful components of the pollutants in the exhaust gas of diesel engines are NOx, PM, HC and CO. Numerous researches have been made elsewhere in the world to reduce the pollutant components of the exhaust gas. But the problems were not yet cleared industrial for the appliances. Thus, the intensive studies in this fields are still being carried out.<br/> The aim of this study is for the reduction of NOx and Soot using Catalyst Coating Filter (CCF) with the experimental study on the factors which have influence on the continuous regeneration of the filter. The experiments were performed in this work at conditions of load(%) at ; 50, 75, 100, and speed(rpm) at ; 1000, 1250, 1500, 1750.