Title:
DYNAMIC SERVO SYSTEM
Document Type and Number:
Japanese Patent JPS63197202
Kind Code:
A
Abstract:
A power servo system which includes an actuator (12) coupled to a load and receives an input command signal (Y) indicative of desired motion at the load. A sampled-data control system (20) receives and samples input signals indicative of desired and actual motion at the hydraulic actuator (12) and load, and provides control signals ( U(Z) ) to the actuator necessary to obtain desired motion. The sampled-data control system includes digital processing circuitry with series ( 32 a ) and feedback compensation ( 28 a ) coordinated with the hydraulic system transfer function, to form a complete closed-loop control system operating in the sampled-data or Z-transform domain. Different equation constants in the series and feedback compensation circuitry ( 28 a , 32 a ) are recalculated periodically. Such constants can be recalculated as a function of system behavior, so that system control automatically varies with operating conditions, or constants are calculated based upon a single operator-variable (or remote system) input, which accommodates rapid operator-implemented tracking of system behavior while reducing calculation time. Static gain can be selected independently of other variables.
Inventors:
IIHIA EMU ERU AIBIARII
RICHIYAADO ESU RIIMIYUIZU
RICHIYAADO ESU RIIMIYUIZU
Application Number:
JP30551387A
Publication Date:
August 16, 1988
Filing Date:
December 02, 1987
Export Citation:
Assignee:
VICKERS INC
International Classes:
G05B11/36; F15B9/09; G05B13/02; G05B19/19; G05B21/02; G05D3/12; (IPC1-7): F15B9/09; G05B11/36; G05B21/02; G05D3/12
Attorney, Agent or Firm:
Kaoru Furuya (2 outside)
Previous Patent: JPS63197201
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