Provided is a vehicle vibration damping system capable of improving vibration damping performance in the vicinity of an unsprung resonance frequency where there is a fixed point. A vehicle vibration damping system (100) is provided with a suspension (1), an actuator (2), and a control device (4) that calculates a vibration damping force to be applied to a sprung structure (6) on the basis of the ceiling control theory and controls the actuator (2) on the basis of the vibration damping force. The control device (4) is configured so as to calculate the damping force on the basis of a corrected control parameter obtained by multiplying a control parameter, which is a denominator of a transfer function for displacement of a sprung structure (6) having a two-degree-of-freedom vibration model of a virtual ceiling damper (7), by a function for cancelling a coefficient for the control parameter term. The control parameter is a product of a damping coefficient of the ceiling damper (7) and a Laplace operator. The function takes a coefficient of a control parameter item of the transfer function as a denominator and at least comprises a quadratic term of a Laplacian operator in a molecule.
提供一种车辆减振系统,能够提高存在不动点的簧下共振频率附近的减振性能。车辆减振系统(100)具备:悬架(1)、致动器(2)以及基于天棚控制理论来计算应向簧上构造体(6)赋予的减振力并基于减振力来控制致动器(2)的控制装置(4)。控制装置(4)构成为,基于对传递函数的分母的控制参数乘以用于消去控制参数项的系数的函数而得到的校正控制参数来计算所述减振力,所述传递函数是具有假想的天棚阻尼器(7)的二自由度振动模型的簧上构造体(6)对路面位移的传递函数。控制参数是所述天棚阻尼器(7)的阻尼系数与拉普拉斯算子之积。所述函数是以传递函数的控制参数项的系数为分母、且分子中至少包含拉普拉斯算子的二次项的函数。
Vehicle vibration damping system
车辆减振系统
2024-10-29
Patent
Electronic Resource
Chinese
IPC: | B60G VEHICLE SUSPENSION ARRANGEMENTS , Radaufhängungen und Federungen für Fahrzeuge |
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