High-order hybrid actuator controller
First Claim
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1. A method, comprising:
- selecting an actuator controller for an actuator, including;
responsive to the actuator being in a settle stage, selecting a first controller having an estimator-compensator architecture;
responsive to the actuator being in a track follow stage, selecting a second controller having an architecture including an infinite impulse response filter having an integrator in parallel; and
providing a control output, which is indicative of a control signal, from the selected controller to the actuator.
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Abstract
A method of providing a control output by selecting a controller to an actuator is discussed. A first controller having an estimator-compensator architecture is selected if the actuator is in a settle stage. A second controller having an architecture other than that of the first controller is selected when the actuator is in a track follow stage. The control output is provided from the selected controller to the actuator. The control output is indicative of the control signal.
11 Citations
19 Claims
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1. A method, comprising:
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selecting an actuator controller for an actuator, including; responsive to the actuator being in a settle stage, selecting a first controller having an estimator-compensator architecture; responsive to the actuator being in a track follow stage, selecting a second controller having an architecture including an infinite impulse response filter having an integrator in parallel; and providing a control output, which is indicative of a control signal, from the selected controller to the actuator. - View Dependent Claims (2, 3, 4, 5, 6, 7)
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8. A method, comprising:
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providing an output signal from a first controller to an actuator in a settle state, the first controller having an estimator-compensator architecture; receiving a control signal indicative of a desired position of the actuator and a feedback signal indicative of an actual position of the actuator; and responsive to the control signal and the feedback signal, transitioning, from the first controller to a second controller having an architecture other than the estimator-compensator architecture so that the output signal is provided by the second controller. - View Dependent Claims (9, 10, 11, 12, 13)
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14. An apparatus, comprising:
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an actuator; and an actuator controller operably coupled to the actuator with a controller architecture including; a first settle controller having an estimator-compensator architecture; and a second settle controller having an architecture other than an estimator-compensator; wherein the actuator controller selects one of the first and second settle controllers to provide an output to the actuator as indicated by a control signal indicative of a desired position of the actuator and a feedback signal indicative of an actual position of the actuator. - View Dependent Claims (15, 16, 17, 18, 19)
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Specification