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심현수(Huynsoo Shim),이재신(Jaesin Lee),신병관(Beongkwan Shin),김광암(Kwangam Kim) 한국자동차공학회 2002 한국자동차공학회 춘 추계 학술대회 논문집 Vol.2002 No.5_2
Lately, the high performance solenoid valve is adopted to hydrnulic control system for hydrnulic pressure control in automatic trasmission. But it is difficult to obtain the pressure control performance that reflects the performance of solenoid valve characteristic sufficiently from conventionaal valve and the redesign is needed for the better hydrnulic control System. This paper proposes process of the pressure control valve design that is based on the pressure control characteristic of solenoid valve. And the characteristic of designed pressure control valve is confirmed by simulation program analytically. As a result, it is possible to save time and effort for development in early stage and to reduce a test step efficiently. FinalIy, pressure control characteristic of valve that is designed with proposed design process in this study compared with experiment result. And it shows that the experimentaI result satisfies a design target considerrably with good agreement.
플러그인 하이브리드 차량용 전동식 오일펌프의 압력 및 누유 특성 해석
송민석(Minseok Song),오요셉(Joseph Oh),김종현(Jonghyun Kim),이재신(Jaesin Lee),김현수(Hyunsoo Kim) 한국자동차공학회 2011 한국자동차공학회 부문종합 학술대회 Vol.2011 No.5
Pressure and leakage characteristic of an electric oil pump(EOP) for a plug-in hybrid are investigated. First, inlet and outlet volume of a generator type oil pump is obtained based on the chamber area which is created when the inner and outer rotor encounter. And leakage model is constructed for the tip and plate clearance. Using the EOP and leakage model, simulation are performed. It is found from the simulation that the EOP pressure shows oscillatory response due to the geometric characteristics of the chamber volume which varies depending on the rotational angle. In addition, the leakage at each chamber occurs only when the pressure is generated.