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Nonlinear tension observers for web machines
Precise regulation of span tension in web-handling machines is critical to ensure product quality. Elevated tension causes web fracture during operation; depressed or highly variable tension leads toExpand
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  • 1
Observer design for a class of nonlinear systems with non-full relative degree
The paper proposes a method for observer design for a class of nonlinear systems. We decompose the system using a weaker concept than the relative degree. We provide sufficient conditions for globalExpand
  • 13
  • 1
Strategies, concepts and approaches to avoid cuttermarks on wooden workpiece surfaces
Abstract Milling is one of the most important cutting procedures in the wood industry. It allows shaping of workpiece surfaces with a high chip-removal rate. This is possible because of a fast rotaryExpand
  • 7
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Computation of the observer gain for extended Luenberger observers using automatic differentiation
  • K. Röbenack
  • Mathematics, Computer Science
  • IMA J. Math. Control. Inf.
  • 1 March 2004
  • 18
High-gain nonlinear observer design using the observer canonical form
Exact error linearisation is a well-established nonlinear observer design method which is difficult to apply as it requires the solution of a system of partial differential equations. To avoid thisExpand
  • 25
This paper proposes two methods for nonlinear observer design which are based on a partial nonlinear observer canonical form (POCF). Observability and integrability existence conditions for the newExpand
  • 16
Design of a nonlinear trailer steering controller
In this paper the authors present a design approach of a nonlinear controller for steered semi-trailers of heavy commercial vehicles, which is used to improve their maneuverability. The proposedExpand
  • 6
Automatic differentiation and nonlinear controller design by exact linearization
  • K. Röbenack
  • Computer Science
  • Future Gener. Comput. Syst.
  • 1 October 2005
Various modern algorithms for controller design are based on differential-geometric concepts. A method of particular importance is called exact linearization via feedback. In this case, theExpand
  • 18
Reglerentwurf mit Hilfe des Automatischen Differenzierens (Controller Design using Automatic Differentiation)
Beim Regler- und Beobachterentwurf für nichtlineare Systeme werden häufig Lie-Ableitungen eingesetzt. Ihre Berechnung erfolgte bisher meist symbolisch und war daher sehr rechenzeitaufwendig. MitExpand
  • 13
On the efficient computation of higher order maps adfkg(x) using Taylor arithmetic and the Campbell-Baker-Hausdorff formula
The computation of ad f k g requires derivatives of f and g up to order k. For small dimensions, the Lie brackets can be computed with computer algebra packages. The application to non-trivialExpand
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