High-Speed Track Access Technique Based on Model Following Control for Disk Drives
- 1 January 1994
- journal article
- Published by Institute of Electrical and Electronics Engineers (IEEE) in IEEE Translation Journal on Magnetics in Japan
- Vol. 9 (1) , 87-94
- https://doi.org/10.1109/tjmj.1994.4565799
Abstract
This article discribes a model following control system enabling disk drives to achieve high-speed track access. In this kind of control system, a prediction from a model plays an important role in reducing access time. We propose a new reference model based on a numerical model of the VCM (voice coil motor) used as the disk drive actuator. Taking the VCM actuator dynamics into account, the reference model generates a reference trajectory to achieve high-speed head positioning. Simulation and experimental results for a typical hard disk drive indicate the validity of the proposed method.Keywords
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