Adaptive control system
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United States of America Patent
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-
Mar 22, 1988
Grant Date -
N/A
app pub date -
May 31, 1985
filing date -
May 31, 1985
priority date (Note) -
Expired
status (Latency Note)
Importance
Abstract
A real time adaptive control capable of maintaining stable operation with changing inertia. The controller utilizes a pseudo-derivative feedback (PDF) type control wherein dynamic adjustment is achieved by adjusting only a single variable. The variable can be controlled as a function of the derivation of motor speed divided by motor current for adaptive control with changing inertia. Control may also be achieved as a function of motor speed divided by the integral of motor current over the same interval. In a digital implementation the integral of motor current the time required for a predetermined speed change provides effective control.
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