University of Illinois Urbana-Champaign

On Time: Clocks, Chronometers, and Open-Loop Control

LaValle, Steven M.; Egerstedt, Magnus B.

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On Time Clocks, Chronometers, and Open-Loop Control.pdf

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https://hdl.handle.net/2142/11340

Description

Title
On Time: Clocks, Chronometers, and Open-Loop Control
Author(s)
  • LaValle, Steven M.
  • Egerstedt, Magnus B.
Issue Date
2007-05
Keyword(s)
control systems
Date of Ingest
2009-04-22T15:19:44Z
Abstract
This paper addresses the peculiar treatment that time receives when studying control systems. For example, why is the ability to perfectly observe time assumed implicitly in virtually all control formulations? What happens if this implicit assumption is violated? It turns out that some basic control results fall apart when time cannot be perfectly measured. To make this explicit, we introduce information space concepts that permit imperfect time information to be considered in the same way as imperfect state information. We then argue that classical open-loop control should be reconsidered as perfect {\em time-feedback} control. Following this, we introduce a notion of {\em strongly open-loop} control, which does not require perfect time observations. We provide some examples of these concepts and argue that many fascinating directions for future controls research emerge.
Type of Resource
text
Genre of Resource
Technical Report
Permalink
http://hdl.handle.net/2142/11340
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