Showing papers in "IFAC Proceedings Volumes in 2005"

TL;DR: In this article, a new approach to the solution of optimal control problems for mechanical systems is proposed, based on a direct discretization of the Lagrange-d'Alembert principle for the system (as opposed to using collocation or multiple shooting to enforce the equations of motion as constraints).

TL;DR: In this article, the authors revisited the extremum seeking scheme whose local stability properties were analyzed in (Krstic and Wang, 2000) and proposed its simplified version that still achieves extremum-seeking.

TL;DR: In this article, a model predictive control (MPC) controller is proposed to track varying references, which ensures the feasibility of the optimization problem, constraint satisfaction and asymptotic evolution of the system to any admissible steady state.

TL;DR: In this article, a geometric view of LPV systems is presented and tools of invariant subspaces and algorithms for LPV system affine in the parameters are presented and proposed.

TL;DR: In this article, the state of the art for control in the building automation industry, and reviews new and emerging technologies are discussed, and issues specific to the building industry that impact the adoption of new control technology are also discussed.

TL;DR: This paper proposes to use a set of admissible models, rather than searching for an optimal one which does not provide any stability / adequation guarantee, to characterize the set of accommodable faults, and to quantify the robustness of the fault adaptation scheme.

TL;DR: In this paper, a closed-loop cruise controller is proposed to minimise the running cost of heavy-haul trains equipped with electronically controlled pneumatic brake systems, considering the improving velocity tracking, in-train force management and energy usage.

TL;DR: In this article, the authors address the problem of autonomous underwater vehicle (AUV) control in the absence of full state information and propose a nonlinear gain-scheduling control, whereby a set of linear, dynamic, reduced order output feedback controllers are designed and scheduled on the vehicle's forward speed.

TL;DR: Some of the concepts and outstanding issues for a new methodology that blends robust nonadaptive mixed µ-synthesis and stochastic hypothesis-testing concepts leading to the so-called RMMAC architecture are illustrated.

TL;DR: In this article, a new and powerful tuning method of controllers in the two-degree of freedom control scheme is proposed, which requires only one-shot experimental data of the closed loop.

TL;DR: In this paper, the authors provide fast and on-line methods for failure detection and isolation of uncertain nonlinear systems which are operating in closed-loop systems based on accurate values of the derivatives of a time-signal.

TL;DR: The multiplexed MPC scheme described in this paper solves the MPC problem for each subsystem sequentially and updates subsystem controls as soon as the solution is available, thus distributing the control moves over a complete update cycle.

TL;DR: In this paper, robust H ∞ static output feedback controller guarantees the H 2 gain of the mapping from the exogenous disturbances to the regulated output to be less than or equal to a prescribed level.

TL;DR: Closed loop Noninferior Nash equilibrium solution in linear strategies for specific game policy is derived for the players of the two teams.

TL;DR: A model-free cross-coupled controller with feedback of this coupled position error has been proven to guarantee asymptotic convergence to zero of both position and synchronization errors in a set-point motion control.

TL;DR: In this article, the authors present Lyapunov-based results for verifying L 2 and exponential stability of reset systems, which generalize the available results in the literature and can be easily modified to cover L p stability for arbitrary p ∈ [1, ∞].

TL;DR: In this article, a fault-tolerant control of nonlinear processes with input constraints subject to control system/actuator failures is considered, and a switching policy is derived to orchestrate the activation/deactivation of the constituent control configurations.

TL;DR: It is shown that high gain observers and sliding mode like observers can be derived by considering particular expressions of the design function.

TL;DR: In this article, the authors describe the application of quasi-LPV modeling techniques to an industrial military turbofan engine simulator developed by Snecma Moteurs, the French aerospace propulsion company.

TL;DR: In this article, a quadratic separator independent of the uncertainty is shown to prove lossless the closed-loop well-posedness of descriptor systems, and some known results for stability and pole location are demonstrated in a new way.

TL;DR: In this article, the authors derive a converse statement for barrier certificates, showing that in a quite general setting the existence of a barrier certificate is also necessary for safety, in the sense that there is no trajectory starting from a given set of initial states that reaches a given unsafe region.

TL;DR: In this paper, the authors derived sufficient conditions for passivity and showed that passivity does imply Lyapunov stability when u = 0, and the stability result obtained from positive semidefinite storage functions is new in switching systems.

TL;DR: Wang et al. as mentioned in this paper proposed an active safety warning/control system for heavy-duty commercial vehicles based on the Time-To-Rollover (TTR) metric, which has become popular in rollover detection.

TL;DR: A survey of the role of feedback control in embedded real-time systems, presented in the context of ARTIST2, the EU/IST network of excellence on design of embedded systems.

TL;DR: In this paper, the authors focus on the identification of large-scale discrete-event systems for the purpose of fault detection and present an identification algorithm which allows setting the accuracy of the identified model.

TL;DR: In this paper, a new dynamic decoupling method is proposed for controlling complex uncertain systems using an unknown input observer (UIO) to estimate and cancel dynamic information in real time.

TL;DR: In this article, the authors investigated the usability of MPC in automotive powertrains and showed that MPC has a potential in fast control loops such as the one under study here.

TL;DR: This paper builds on a recent work which demonstrated that one could compute the maximal admissible set for a linear parameter varying system and shows how this set can be used as the terminal region and hence allows the definition of an MPC algorithm requiring only quadratic programming, but with a maximal region of attraction and guaranteed convergence for the robust case.

TL;DR: In this paper, the authors proposed a control scheme for teleoperators consisting of a pair of multi-degree-of-freedom (DOF) nonlinear robotic systems under a constant communication time delay.

TL;DR: This survey introduces the most promising existing methods and adapts them to discrete-time PWA systems and investigates the computation of common quadratic, common quartic, piecewise affine, pieceswise quadratics and piecewise quartic Lyapunov functions using linear programming, semi-definite programming and sum-of-squares techniques.