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자동변속기 주축의 회전에 따른 변속기유 분출량 측정 연구
장시열(Siyoul Jang),이덕재(Duckjae Lee),박준수(Junsu Park),김학수(Haksu Kim),이정선(Jeongseon Lee) 한국트라이볼로지학회 2007 한국트라이볼로지학회 학술대회 Vol.2007 No.6
The durability and efficiency of an automatic transmission are greatly affected by the lubrication properties of transmission fluid. However, it is difficult to exactly estimate the flow rate of lubricating oil at each part of automatic transmission because of its structural complexity under the rotating condition. This study is performed on oil flow distribution measures though each oil hole inside the main shaft supplying ATF for system parts. Oil enters a horizontal tube through entry and discharges into open air via radially-attached branches. Oil flow, pressure and rotational speed are varied. Changes in flow rate with rotational speed are obtained. This study is believed to be the start for the optimal design of the lubricating system in the automatic transmission.
VFS 제어장치를 통한 자동변속기 주축 회전에 따른 변속기유 분출량 측정 연구
장시열(Siyoul Jang),이덕재(Duckjae Lee),박준수(Junsu Park),김학수(Haksu Kim),신동혁(Donghyuk Shin),이정선(Jeongseon Lee) 한국트라이볼로지학회 2007 한국트라이볼로지학회 학술대회 Vol.2007 No.11
The number of automatic transmission in use has been gradually increasing due to driving convenience. In order to increase efficiency and decrease shift shock, the structure of automatic transmission has been complicated. In order to ensure high reliability of the automatic transmission, it is very important to feed the proper quantity of lubricating oil to key parts of the automatic transmission. This study is performed on oil flow distribution measure though each oil hole inside the main shaft supplying ATF for system part by VFS(Variable Force Solenoid-valve) Control Apparatus. Oil flow, pressure and rotation speed are varied. Changes in flow rate with rotation speed are obtained. The study lead to the development of a model to analyse oil lubrication in the automatic transmission line.