Fuzzy controller for an actuator and the controlling method thereof
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United States of America Patent
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Jan 28, 1997
Issued Date -
N/A
app pub date -
Feb 2, 1995
filing date -
Nov 16, 1992
priority date (Note) -
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status (Latency Note)
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Abstract
A fuzzy controller controls a track seeking operation and a track following operation for an actuator in accordance with a position error between a present position value and a reference value. When the actuator is in track seeking operation, the actuator is accelerated or decelerated based on a velocity error value between an actual velocity value of the actuator and a target velocity value determined from a velocity profile according to the position error. In a deceleration control of the actuator, a fuzzy inference value generated based on the velocity error value and its differentiated velocity error value is used for a control of the actuator, thereby reducing an occurrence of overshooting at a target track.
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