마찰, 윤활특성을 고려한 유압제어 시스템 개발

Recent improvements in the fuel efficiency of a car, etc. greening policies and emission reduction, and improved reliability, and improved recycling, particularly in improving fuel economy because it affects most of the world`s automotive technology automotive powertrain (engine + transmission) is a technology for this development has been actively promoted. Hydraulic control system configuration is simple, relatively large force can be obtained compared to the size of the solenoid valve and has also been widely used as a machine operating mechanism and power transmission means of industrial fields because of the good control accuracy. Using the solenoid valve controlling the pressure and flow rate to be supplied to the solenoid valve to control the moving speed, the driving force and the position required by the hydraulic system. The friction and optimize lubrication properties and also due to factors present in vibration and noise may occur due to the unexpected disturbance paper between the core components in the process in developing a single product solenoid valve and hydraulic control system(Valve Body), should be analyzed with respect to friction and lubrication properties, the major factors affecting the vibration on the transmission.