ACTIVE TYPE VIBRATION ISOLATION DEVICE AND ACTIVE TYPE VIBRATION ISOLATION METHOD

摘要

PROBLEM TO BE SOLVED: To provide an active type vibration isolation device and an active type vibration isolation method capable of highly accurately estimating an internal temperature of an actuator.SOLUTION: A computer 206 of an active type vibration isolation device 200 calculates an output average duty ratio DUTaveout used for achieving an operation command value C. The computer 206 calculates a reference average duty ratio DUTaveref achieving the operation command value C when an actuator internal temperature Tacm is a reference temperature Tref based on a point number Np and a command value C being an integer so that the point number Np and the command value C are set to be larger as a rotational period Pv of a driving source 12 becomes longer. The computer 206 calculates the internal temperature Tacm based on deviations of DUTaveout and DUTaveref.SELECTED DRAWING: Figure 19