| 摘要 |
PROBLEM TO BE SOLVED: To provide an active vibration control device with improved controllability. SOLUTION: A past vibration storage means 7A of a control means 7 calculates a past absolute velocity from the absolute acceleration of a mass body 1 measured by an acceleration sensor 6, and stores it. A future vibration prediction means 7B estimates a future absolute velocity based on the past absolute velocity stored in the past vibration storage means 7A and the latest measured value. An FIR (finite impulse response) type HPF (high-pass filter) processing means 7C performs FIR type HPF processing with regard to the past absolute velocity stored by the past vibration storage means 7A and the future absolute velocity estimated by the future vibration prediction means 7B performs the FIR type HPF processing, and calculates the absolute speed with an unnecessary low frequency component eliminated. A control force calculation means 7D obtains an active control force by multiplying the absolute speed obtained by the FIR type HPF processing means 7C by an active damping coefficient and inverting a code. COPYRIGHT: (C)2007,JPO&INPIT
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