ACTIVE VIBRATION CONTROL DEVICE

Japanese Patent JP3952584

B2

PROBLEM TO BE SOLVED: To simplify the structure of a control means for generating an electric signal for controlling and to reduce costs in an active vibration control device for providing an active vibration control effect by controlling the vibration application of the vibration applying plate of a vibration control device main body and generating a vibration applying force via the inner pressure change of a fluid room.
SOLUTION: In a vibration control device 10, a sub liquid room 56 adjusted for pressure by a vibration applying plate 48 is communicated through first orifice passage 64 with a main liquid room 54, and by fluid flowing through the first orifice passage 64, inner pressure in the main liquid room 54 and a vibration applying force are generated. On the other hand, in a control means, a control electric signal is generated so as to have a pulse waveform corresponding to the vibration frequency of a member 20 to be vibration-controlled, and the control electric signal having such a pulse waveform is supplied to the driving means 68 and 74 of the vibration applying plate 48. Since edge noises of pulse waves are buffered in the first orifice passage 64, the necessity of a sine wave control circuit is eliminated.

JP2003214482	LIQUID-ENCAPSULATED ENGINE MOUNT OF HANGDOWN TYPE
JP2848525	[Title of Invention] Anti-vibration device
WO/1991/010575	CONTINUOUSLY ACTIVE PRESSURE ACCUMULATOR POWER TRANSFER SYSTEM

Atsushi Muramatsu
Yoshihiko Hagino
Hiroyuki Ichikawa

JP7401598A

August 01, 2007

March 23, 1998

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Tokai Rubber Industry Co., Ltd.

B60K5/12; F16F13/26; F16F15/02; F16F15/027; G05D19/02; (IPC1-7): F16F13/26; B60K5/12; F16F15/02; F16F15/027; G05D19/02

JP8177961A
JP6241266A
JP7223444A
JP8219228A
JP6033987A

Michio Nakajima
Masahiro Nakashima

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