Global ETD Search
Search theses and dissertations gathered from participating repositories worldwide. Every result links back to the library that holds it. No account is needed.
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Showing 1 to 20 of 27 for “"Time-Optimal Control"”.
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Real-time optimal control of autonomous switched systems
This thesis provides a real-time algorithmic optimal control framework for autonomous switched systems. Traditional optimal control approaches for autonomous switched systems are open-loop in nature. Therefore, the switching times of the system can not be adjusted or adapted when the system …
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The Time-Optimal Control of Singularly Perturbed Systems
Made available in DSpace on 2014-12-12T20:54:48Z (GMT). No. of bitstreams: 1 7811254.pdf: 2965737 bytes, checksum: 6819d6056c3ae398a3bb7a0ecfa50273 (MD5) Previous issue date: 1978
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Time Optimal Control of Nonlinear Sampled-Data Systems
Made available in DSpace on 2014-12-08T22:23:37Z (GMT). No. of bitstreams: 1 6500935.pdf: 1878774 bytes, checksum: 5f5ca919dc06e52b34e05f580b3555af (MD5) Previous issue date: 1964
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Time optimal control for asymptotic tracking of linear systems with input saturation
… and design composite nonlinear feedback controllers. We have explored the problem of asymptotic time optimal tracking for a class of linear system with actuator nonlinearities. A formula on the optimal settling time is given and the corresponding composite nonlinear feedback control law …
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Data-Driven Modeling and Real-Time Optimal Control of Continuous Manufacturing Processes
… manufacturing processes require robust control and adaptability to maintain product quality and operational efficiency. Although advanced control strategies such as linear quadratic regulator, model predictive control, and adaptive control have demonstrated strong performance, many …
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Time-optimal and saturating controls with application to flexible structures
… dissertation is concerned with developing new time-optimal control techniques for higher-order linear and weakly nonlinear systems. As an application, we consider the simultaneous slewing and vibration suppression of a flexible beam, possibly with a tip mass. This application arises in the …
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Design of optimal control systems and industrial applications.
… thesis describes work on the selection of the optimal control criterion weighting matrices, based on multivariable root loci and frequency domain properties. The case with a crossproduct weighting term in the cost function is examined and a design algorithm is proposed. The frequency domain …
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Optimal control strategies for saccadic eye movements in humans
Human motor control systems are complicated by issues of nonlinearity, redundancy, and multiple degrees of freedom. A great variety of mathematical and engineering approaches have been applied to the problem of modeling human movement systems: open and closed loop control, dynamic optimization, …
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A Parallel-In-Time Gradient-Type Method For Optimal Control Problems
… thesis proposes and analyzes a new parallel-in-time gradient-type method for time-dependent optimal control problems. When the classical gradient method is applied to time-dependent optimal control problems, each iteration requires the forward solution of the state equations followed by the …
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Predictive and adaptive extremal control
The time-optimal predictive control strategy for second order relay or bang-bang control systems is investigated along with modifications of this strategy for third order systems. One basis of this strategy is the utilization of a model, a replica of the plant, run in a fast-time mode so as to …
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Dynamic pricing and inventory control with no backorders under uncertainty and competition
… Nevertheless, determining pricing and inventory optimal policies in more realistic settings may not be a tractable task. Ignoring the potential inaccuracy of parameters may lead to a solution that actually performs poorly, or even that violates some constraints. Finally, competitors impact a …
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A two-motor actuator for legged robotics applications
… followed by modeling of the system as a hybrid control system. A basic control scheme for distributing drive currents to the two motors is presented, and an example of time-optimal control of the hybrid system is addressed. A proof-of-concept prototype is built and the control algorithms are …
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A Gauss pseudospectral transcription for optimal control
A pseudospectral method for solving nonlinear optimal control problems is proposed in this thesis. The method is a direct transcription that transcribes the continuous optimal control problem into a discrete nonlinear programming problem (NLP), which can be solved by well-developed algorithms. The …
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Wireless mosaic eyes based robot path planning and control. Autonomous robot navigation using environment intelligence with distributed vision sensors.
… constraints for trajectory generation and motion control is introduced to generate real time robot motion commands to navigate the robot from its current position to the target position. A rolling window optimisation mechanism subject to control input saturation constraints is carried out for …
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Rule-Based Approaches for Controlling on Mode Dynamic Systems
… new fuzzy logic techniques for designing control systems for a wide class of complex systems. The methods are developed in detail for a crane system which contains one rigid-body and one oscillation mode. The crane problem is to transfer the rigid body a given distance such that the …
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Control of cooperative unmanned aerial vehicles
This thesis addresses the problems of design and control of small cooperative unmanned autonomous quadrotor aerial vehicles. A new approach is proposed, for the modeling of the system’s dynamics using linearized Piecewise AffineModels. The Piecewise Affine dynamic–models cover a large part of the …
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Approximate Dynamic Programming with Applications
This thesis studies approximate optimal control of nonlinear systems. Particular attention is given to global solutions and to the computation of approximately optimal feedback controllers. The solution to an optimal control problem is characterized by the optimal value function. For a large class …
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Inverse optimal control for deterministic continuous-time nonlinear systems
Inverse optimal control is the problem of computing a cost function with respect to which observed state input trajectories are optimal. We present a new method of inverse optimal control based on minimizing the extent to which observed trajectories violate first-order necessary conditions for …
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Cooperative autonomous systems: Motion planning and coordinated tracking control for multi-vehicle missions
In this dissertation a framework for planning and control of cooperative autonomous systems is presented, which allows a group of Unmanned Vehicle Systems (UxSs) to generate and follow desired trajectories, while coordinating along them in order to satisfy relative temporal constraints. The …
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