The hydraulic main line pressure and flow regulation system of an automatic transmission is a complex high order control system. There is lack of effective method in practice to do the stability design of the high order hydraulic control system and instability is often a common problem of the complex hydraulic systems as vibration in pressure and flow. A method based on main stability margin and main natural frequency design are proposed for high order system stability design. System model were built to calculate and to analyze the main stability margin and natural frequency, and optimized system parameters to ensure quick dynamic response, and system stability were acquired through the stability design method by Designed of Experiments (DOE) tools. The test results show the validity of the system model and the proposed stability design method.
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李晨,孙光辉,方伟荣.自动变速箱液压主油路控制系统稳定性设计[J].机床与液压,2019,47(11):119-123. . Stability Design of Automatic Transmission Hydraulic Mainline Control System[J]. Machine Tool & Hydraulics,2019,47(11):119-123