Electricity: motive power systems – Positional servo systems
Patent
1993-10-26
1995-10-17
Shoop, Jr., William M.
Electricity: motive power systems
Positional servo systems
31856819, 318575, 318574, 318802, 31856812, 318569, G05B 1101
Patent
active
054593816
ABSTRACT:
High-speed, high-precision course control can be performed without increasing the loop gain of each control system. A target value for moving a controlled object as a reality axis by a desired amount is produced. A virtual target value for moving a virtual controlled object as a virtual axis based on the reality axis is also produced. A control input and a virtual control input which optimize a predetermined first evaluation function are calculated upon reception of the produced virtual target value, the produced target value, a virtual state amount from the virtual controlled object, a state amount from the controlled object, a first disturbance signal with respect to the virtual controlled object, and a second disturbance signal with respect to the controlled object. The calculated control input and the calculated virtual control input are input to the virtual controlled object and the controlled object, respectively.
REFERENCES:
patent: 5023538 (1991-06-01), Mutoh et al.
patent: 5206569 (1993-04-01), Ozawa
patent: 5252901 (1993-10-01), Ozawa et al.
A. Suzuki, et al., "Design and Implementation of Digital Servo Controller for High Speed Machine Tools", Proceedings of the 1991 American Control Conference, vol. 2, pp. 1246-1251 (Jun. 1991).
C. Lo, et al., "Evaluation of Servo-Controllers for Machine Tools", Proceedings of the 1992 American Control Conference, vol. 1, pp. 370-374 (Jun. 1992).
Canon Kabushiki Kaisha
Masih Karen
Shoop Jr. William M.
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