Fuzzy and time-suboptimal control for dual track following and seeking of the magnetic hard disk drive

E. L. Branch, M. Bikdash, A. Homaifar

Research output: Chapter in Book/Report/Conference proceedingConference contributionpeer-review

Abstract

Track-seeking for a magnetic hard drive is a time optimal control problem where the objective is to move the R/W head from the current track to a specified destination track in minimum time using a bounded control effort. One difficulty is due to the nonlinear saturation and hysterisis behavior of the voice coil actuator. Therefore a dual fuzzy logic controller (FLC) for track seeking and track following is designed and implemented. The controller uses position and velocity to decide on the commanded electrical current. Once the reading head gets within a small distance of the target track, a linear pole placement design is implemented. We compare the performance of this controller with a time-suboptimal design obtained for the linearized version of the dynamics.

Original languageEnglish
Title of host publicationMultimedia, Image Processing and Soft Computing
Subtitle of host publicationTrends, Principles and Applications - Proceedings of the 5th Biannual World Automation Congress, WAC 2002, ISSCI 2002 and IFMIP 2002
Pages37-42
Number of pages6
StatePublished - 2002
Externally publishedYes
Event4th International Symposium on Soft Computing for Industry, ISSCI 2002 and the 3rd International Forum on Multimedia and Image Processing, IFMIP 2002, Held within the World Automation Congress, WAC 2002 - Orlando, FL, United States
Duration: Jun 9 2002Jun 13 2002

Publication series

NameMultimedia, Image Processing and Soft Computing: Trends, Principles and Applications - Proceedings of the 5th Biannual World Automation Congress, WAC 2002, ISSCI 2002 and IFMIP 2002
Volume13

Conference

Conference4th International Symposium on Soft Computing for Industry, ISSCI 2002 and the 3rd International Forum on Multimedia and Image Processing, IFMIP 2002, Held within the World Automation Congress, WAC 2002
Country/TerritoryUnited States
CityOrlando, FL
Period06/9/0206/13/02

Keywords

  • Bang-Bang control
  • Extended pontryagin's minimum principle (EPMP)
  • Fuzzy logic control
  • Magnetic disk drive
  • Pole placement
  • Time sub-optimal control

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