Control apparatus

Electricity: motive power systems – Positional servo systems – With stabilizing features

Reexamination Certificate

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Details

C318S611000, C318S621000, C318S568220, C700S188000

Reexamination Certificate

active

07808199

ABSTRACT:
A control apparatus of the present invention comprising a control unit outputting a control signal controlling a servo motor and suppressing natural vibration of a controlled object including a motor and a machine driven by the motor while controlling the controlled object, comprising a frequency analysis unit analyzing a frequency component included in a torque command, an analysis control unit controlling the start or stopping of the frequency analysis unit, a detection unit detecting a natural frequency of the controlled object from an analysis result of the frequency analysis unit, a-band rejection filter receiving as input the torque command, stripping the command of the natural frequency component, and outputting the resultant command to the motor through a current control unit and servo amplifier, and a filter characteristic setting unit setting the frequency to be stripped at the filter based on the natural frequency detected by the detection unit.

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patent: 4195265 (1980-03-01), Vali
patent: 6507165 (2003-01-01), Kato et al.
patent: 2002/0016648 (2002-02-01), Fujita et al.
patent: 2006/0108961 (2006-05-01), Takemori et al.
patent: 0685779 (1995-12-01), None
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patent: 7-261853 (1995-10-01), None
patent: 2000056806 (2000-02-01), None
patent: 2001-293638 (2001-10-01), None
patent: 2004215455 (2004-07-01), None
Notice of Reasons for Rejection for JP2007-174296 mailed Oct. 7, 2008.
European Search Report of Application No. 08011541.3-2206 / 2012206 mailed Mar. 5, 2010.

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