Skip to main content
SpringerLink
Log in

Optimal seek profile generation with time-varying weightings for hard disk drives

  • Technical Paper
  • Published:
Microsystem Technologies Aims and scope Submit manuscript

Abstract

In this paper, an optimal servo control strategy is presented to achieve high seek/settle performance without compromising the targeted seek time in hard disk drives. The cost function to be optimized is given by a weighted quadratic function with respect to time and the jerk of control command. Thanks to the fact that the cost function is directly penalized with time-varying weightings, the proposed method is more effective to minimize the settling vibration induced by the actuator seek profile compared with the previous optimization approaches in literature. The proposed approach is applicable to any given initial and terminal conditions.

This is a preview of subscription content, log in via an institution to check access.

Access this article

Log in via an institution

Price excludes VAT (USA)
Tax calculation will be finalised during checkout.

Instant access to the full article PDF.

Institutional subscriptions

Fig. 1
Fig. 2
Fig. 3
Fig. 4
Fig. 5
Fig. 6

Similar content being viewed by others

References

  • Takaishi K (2003) Seek control and settling control taming actuator resonance of hard disk drives. IEEE Trans Magn 39(2):838–843

    Article  Google Scholar 

  • Zhou L (2004) Robust vibration suppression control profile generation based on time–frequency uncertainty. In: Proceedings of the 2004 American control conference, Boston, Massachusetts, pp 5232–5237

  • Hu S (2005) A time-optimal unified servo control method with a two-degree-of freedom structure for a hard disk drive. In: Proceedings of 2005 American control conference, pp 3204–3209

  • Fujimoto H (2006) Vibration suppression multi-rate seeking control of hard disk drives. AMC’06, Istanbul, pp 153–158

    Google Scholar 

  • Semba T (2006) Optimal seek trajectory generation for a hard disk drive using adaptive filtering. In: Proceedings of the 2006 American control conference, Minneapolis, Minnesota, USA, pp 594–599

  • Mizoshita Y (1996) Vibration minimized access control for disk drives. In: IEEE Trans Magn, pp 1793–1798

  • Donald K (2004) Optimal control theory. Dover Publications Inc, Mineola, pp 184–209

    Google Scholar 

Download references

Author information

Authors and Affiliations

  1. San Jose HDD Labs, Hitachi Global Storage Technologies, 5600 Cottle Road, San Jose, CA, 95136, USA

    Zhi Wang, Jr-Yi Shen, Bryan Rowan & Pushkar Hingwe

Authors
  1. Zhi Wang
    View author publications

    You can also search for this author in PubMed Google Scholar

  2. Jr-Yi Shen
    View author publications

    You can also search for this author in PubMed Google Scholar

  3. Bryan Rowan
    View author publications

    You can also search for this author in PubMed Google Scholar

  4. Pushkar Hingwe
    View author publications

    You can also search for this author in PubMed Google Scholar

Corresponding author

Correspondence to Zhi Wang.

Rights and permissions

Reprints and permissions

About this article

Cite this article

Wang, Z., Shen, JY., Rowan, B. et al. Optimal seek profile generation with time-varying weightings for hard disk drives. Microsyst Technol 16, 111–115 (2010). https://doi.org/10.1007/s00542-008-0770-5

Download citation

  • Received:

  • Accepted:

  • Published:

  • Issue Date:

  • DOI: https://doi.org/10.1007/s00542-008-0770-5

Keywords

Search

Navigation