Apparatus and method for servo control system

Details Apparatus and method for servo control system Apparatus and method for servo control system

1989-06-01

1990-12-25

Roskoski, Bernard

Electricity: motive power systems

Positional servo systems

Program- or pattern-controlled systems

318618, 318629, 318632, 364513, G05B 1300

Patent

active

049806254

ABSTRACT:
The present invention is provided to suppress mechanical resonance which is likely to be generated in a mechanically driven and controlled apparatus such as robots, machine tools, etc. due to their low rigidity. In order to achieve this object, the present invention uses an adaptive filter which changes its cut-off frequency or notch frequency in response to a change in the natural oscillation frequency caused by a change in position and orientation of and load acting on the machine.

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