Fuzzy controller for an actuator and the controlling method ther

Details Fuzzy controller for an actuator and the controlling method ther Fuzzy controller for an actuator and the controlling method ther

1995-02-02

1997-01-28

Psitos, Aristotelis

Dynamic magnetic information storage or retrieval

Automatic control of a recorder mechanism

Controlling the head

360 7704, 360 7806, 360 7807, 395 3, 395900, 364174, 318561, G11B 5596

Patent

active

055983049

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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patent: 5424886 (1995-06-01), Tomitaka
Yen et al.; "Servo Controller Design for an Optical Disk Drive Using Fuzzy Control Algorithm"; IEEE International Conference; Mar. 12, 1992, pp. 989997.
Hsu et al.; "Fuzzy Controller for Head-Positioning of Disk Drives"; SPIE, Electro-Optic Computer Peripherals Technology; vol. 1816; 1992; pp. 43-49.

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