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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.
PHEV용 전동식 오일 펌프 용량 설계 기법에 대한 연구
오요셉(Joseph Oh),송민석(Minseok Song),김종현(Jonghyun Kim),김영철(Youngchul Kim),이재신(Jaesin Lee),김현수(Hyunsoo Kim) 한국자동차공학회 2012 한국자동차공학회 부문종합 학술대회 Vol.2012 No.5
In this paper, a design method of an electric oil pump(EOP) capacity for plug-in hybrid vehicle is suggested. As a first step of design process, total flow rate model for hydraulic control system including spool valve leakage, solenoid valve leakage, seal ring leakage, lubrication, and mode change flow rate is constructed. Since the transmission fluid temperature influences on the flow consumption and power, the EOP capacity was designed by considering the total flow rate and power consumption. Also, pump speed limitation for preventing pump noise and vibration is applied to the design process. In addition, graphic user interface for the EOP capacity design is developed.