Track Seeking Control of Hard Disk Drives Using Polynomial-Input-Type FSC

Hirata, Mitsuo; Ueno, Fujimaru

doi:10.1541/ieejias.130.277

Cited by 8 publications

(1 citation statement)

References 5 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…Therefore, there is a trade-off between the stability and the transient response. To solve this problem, final-state control (FSC) (4) was proposed and is widely used in such applications as the servo control of hard disk drives (HDDs) (5) (6) . FSC is an optimal feedforward control technique to drive a dynamic system to a specified state in a designed time period without suffering from a decaying transient response.…”

Section: Introductionmentioning

confidence: 99%

Final-State Control Algorithm with Overshoot/Undershoot Prevention Technique for a Connection Control Problem

et al. 2015

View full text Add to dashboard Cite

This paper proposes a method to prevent overshoot and undershoot (OS/US) problems for final-state control (FSC) and updating final-state control (UFSC). The FSC is an optimal feedforward control technique to drive a dynamic system to a specified state in a specific time period by an external input. The UFSC is a version of FSC that is modified to deal with a varying final state by updating the FSC control input at each sample. However, both FSC and UFSC algorithms do not guarantee that no overshoot or undershoot occurs in the transient state between the initial state and the final state. This paper proposes an OS/US prevention technique via tuning the FSC or UFSC activated time. The technique is developed by adding a constraint that all the FSC or UFSC control input should be in the same direction. In this paper, the effectiveness of the algorithm is verified by simulations for a plural-cart connection problem.

show abstract

Section: Introductionmentioning

confidence: 99%