Patent ID: 8138693
Filing Date: 2012-03-20
Classification: F16F,G05D,H02P

Abstract:
1. A vibration isolation control system that is coupled to an apparatus in which a vibration excitation actuator that includes a vibration excitation movable unit movable in one axial direction is arranged and that suppresses a vibration that acts on the apparatus when an object is mounted on the vibration excitation movable unit and the vibration excitation movable unit is moved, the vibration isolation control system comprising: a storage unit that stores therein a model operation parameter of the vibration excitation actuator and vibration-excitation movable mass data obtained by adding a mass of the vibration excitation movable unit and a mass of the object; a computing unit that simulates an ideal operation of the vibration excitation actuator by using at least the model operation parameter and the vibration-excitation movable mass data and calculates a parameter corresponding to acceleration/deceleration thrust for moving the vibration-excitation movable mass; a vibration isolation actuator that includes a vibration isolation driving unit fixed to the apparatus and a vibration isolation movable unit driven by the vibration isolation driving unit to move in the axial direction; and a vibration isolation controller that determines a control content of the vibration isolation driving unit based on the parameter corresponding to the acceleration/deceleration thrust calculated by the computing unit and controls an operation of the vibration isolation driving unit so that a force canceling a reaction force, which acts on the apparatus when the vibration-excitation movable mass is moved, acts on the apparatus by moving the vibration isolation movable unit.