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Unknown and uncertain disturbances significantly affect the servo performances of servo track writers. Therefore, the development of a robust fast seek controller that seeks using a state space disturbance observer is required. We present the design and application of a robust fast seek controller for servo track writers. Unlike some existing methods that use an explicit model for disturbance or for...
Unknown and uncertain disturbance significantly affects the performance of a active steering control such as lane keeping and lane changing control. Such performance degradation is here considered to be due to input equivalent disturbance that is to be compensated by the state space disturbance observer we are to design. In contrast to some existing methods that employ explicit models for disturbance...
In this paper, we design a reference profile to minimize the resonance vibration caused by fast seeking and settling control. Furthermore, we propose a new state space disturbance observer. The proposed disturbance observer augmented the integration of position compensates the offset of constant velocity region as well as the uncertain and unknown bias. The proposed control scheme is validated by...
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