This paper presents a toolbox for use with MATLAB. The proposed tools can be divided in four subsets, i.e. tools for: 1. modal analysis (dominant poles identification, controllability degree, modal simulation), 2. cla...
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ISBN:
(纸本)0780365666
This paper presents a toolbox for use with MATLAB. The proposed tools can be divided in four subsets, i.e. tools for: 1. modal analysis (dominant poles identification, controllability degree, modal simulation), 2. classical single-model design (eigenstructure assignment, observer and dynamic feedforward design), 3. dynamic multimodel robust controldesign (generalized phase control, generalized eigenstructure assignment, use of structured feedback gains) 4. tuning of a feedback design.
There are many methods for pole assignment using output feedback. On the basis of the paper by Galperin et al. (1970), the author presents here a very simple, well conditioned algorithm for pole placement by output fe...
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ISBN:
(纸本)0780365666
There are many methods for pole assignment using output feedback. On the basis of the paper by Galperin et al. (1970), the author presents here a very simple, well conditioned algorithm for pole placement by output feedback involving only matrix additions and multiplications and solution of elementary linear systems.
This paper presents a component-based modeling technique for systems with continuous and discrete dynamics. It uses hierarchical composition to hide the implementation details of one component from other components, a...
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ISBN:
(纸本)0780365666
This paper presents a component-based modeling technique for systems with continuous and discrete dynamics. It uses hierarchical composition to hide the implementation details of one component from other components, and keeps the components at the same level of hierarchy interacting under a well-defined model of computation. Continuous time, discrete event, and finite state machine models are considered. The signal conversions at the boundaries and the execution control among the components are studied. The modeling technique is implemented in Ptolemy II, a heterogeneous modeling and design environment. A hierarchical helicopter controlsystem is modeled as an example.
A hierarchical structure for the tasks of the electronic control units devoted to automotive engine control is proposed. The architecture, at its highest level of abstraction, is divided into three parts: the driver i...
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ISBN:
(纸本)0780365666
A hierarchical structure for the tasks of the electronic control units devoted to automotive engine control is proposed. The architecture, at its highest level of abstraction, is divided into three parts: the driver interpreter, the engine controller, and the actuator controller. The lower hierarchical structure of the actuator controller block is detailed and applied to the case of an equivalent single cylinder engine. The implementation of the proposed architecture is shown to be compliant with the function block approach of the proposed IEC 1499 international standard.
A discrete-time iterative learning controller for single input single output systems is presented. It works with a reduced sampling rate in order to guarantee the reduction of the error norm from cycle to cycle. A con...
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ISBN:
(纸本)0780365666
A discrete-time iterative learning controller for single input single output systems is presented. It works with a reduced sampling rate in order to guarantee the reduction of the error norm from cycle to cycle. A consequence of the increased sample time is that large and abrupt, changes in the controller output are likely to be induced. In order to overcome this problem, the design of an ILC using hold devices with continuous transitions between the control values is presented.
We describe a Descriptor systems Toolbox implemented under MATLAB. This Toolbox relies on the object oriented approach for controlsystems analysis and design provided within the standard control Toolbox of MATLAB. Th...
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ISBN:
(纸本)0780365666
We describe a Descriptor systems Toolbox implemented under MATLAB. This Toolbox relies on the object oriented approach for controlsystems analysis and design provided within the standard control Toolbox of MATLAB. The basic approach to develop the Descriptor systems Toolbox was to exploit the powerful matrix and system object manipulation features of MATLAB via flexible and functionally rich high level m-functions, while simultaneously enforcing highly efficient and numerically sound structure exploiting computations via the mex-function technology of MATLAB to solve critical numerical problems. The mex-functions are based on FORTRAN codes from LAPACK and SLICOT.
A hybrid automaton is a model of a system with interacting continuous and discrete dynamics. It has been successfully employed in emerging applications on the border between computer science and control theory. In thi...
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ISBN:
(纸本)0780365666
A hybrid automaton is a model of a system with interacting continuous and discrete dynamics. It has been successfully employed in emerging applications on the border between computer science and control theory. In this paper, hybrid automata are formally introduced. Some results on existence and uniqueness of executions for hybrid automata are obtained. Continuous dependence on initial states are shown for a class of hybrid automata. Zeno hybrid automata, i.e., hybrid automata that exhibit infinitely many discrete transitions in finite time, are also discussed.
The design of today's complex controlsystems involves many views from different disciplines. Generic CASE tools offer wide applicability at the expense of depth. Single-purpose, domain-specific tools provide the ...
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ISBN:
(纸本)0780365666
The design of today's complex controlsystems involves many views from different disciplines. Generic CASE tools offer wide applicability at the expense of depth. Single-purpose, domain-specific tools provide the needed analytical power but yield diminishing returns outside of their domain. Alternatively, model driven tools based on meta-models, that is, explicit characterizations of the domain of interest, can quickly evolve to meet new needs. This paper describes one such model-driven tool-set, called the domain modeling environment (DOME). We describe its meta-modeling capabilities and its extension mechanisms for analysis and transformation of models. We illustrate DOME with two examples: 1) using an interpreter called ProtoDOME to directly "execute" meta-models; 2) showing how a meta-model can quickly evolve to build a new graphical design tool.
The wireless application protocol (WAP) supported by some new mobile phones makes it possible to deliver web-like applications over the wireless telephone network. In this work one such application is presented. The a...
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ISBN:
(纸本)0780365666
The wireless application protocol (WAP) supported by some new mobile phones makes it possible to deliver web-like applications over the wireless telephone network. In this work one such application is presented. The application gives access to several PID controller tuning methods using a mobile phone. The paper begins with a short introduction to WAP technology. Next the tuning methods included in the application are described as well as the software implementation. An example and conclusions finish the paper.
This paper deals with the open issue of finding a stable element in an affine polynomial family, a difficult design problem occurring when stabilizing a given SISO plant with a fixed order compensator whose parameters...
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ISBN:
(纸本)0780365666
This paper deals with the open issue of finding a stable element in an affine polynomial family, a difficult design problem occurring when stabilizing a given SISO plant with a fixed order compensator whose parameters are subject to interval constraints. Using a rank-one LMI formulation of the problem, a tractable linearization heuristic is developed, which proves efficient in practice, as illustrated by intensive numerical experiments.
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