Effective Smoothness of Surge Pressure Generated in the Return Line of Active Suspension Hydraulic System for Vehicle

자동차 능동 현가장치 유압계 회귀 관로에서의 서지 압력 저감법

Surge pressure problem at the oil return line of the hydraulic circuit of an active suspension system for passenger cars was investigated by experiments and numerical analyses. In the numerical analyses, the method of characteristics was used for simulating unsteady flow in the hydraulic system and gas discrete model was adopted for estimating gas volume variation in separated liquid column. In the experiments and analyses, effects of the physical parameters of the accumlator on smoothing surge pressure was elucidated.