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Input reconstruction by means of system inversion: A geometric approach to fault detection and isolation in nonlinear systems

100%

Edelmayer A., Bokor J., Szabó Z., Szigeti F.

International Journal of Applied Mathematics and Computer Science

2004

tom 14

nr 2

189-199

In this paper the classical detection filter design problem is considered as an input reconstruction problem. Input reconstruction is viewed as a dynamic inversion problem. This approach is based on the existence of the left inverse and arrives at detector architectures whose outputs are the fault signals while the inputs are the measured system inputs and outputs and possibly their time derivatives. The paper gives a brief summary of the properties and existence of the inverse for linear and nonlinear multivariable systems. A view of the inversion-based input reconstruction with special emphasis on the aspects of fault detection and isolation by using invariant subspaces and the results of classical geometrical systems theory is provided. The applicability of the idea to fault reconstruction is demonstrated through examples.

LPV design of fault-tolerant control for road vehicles

100%

Gáspár P., Szabó Z., Bokor J.

International Journal of Applied Mathematics and Computer Science

2012

tom 22

nr 1

173-182

The aim of the paper is to present a supervisory decentralized architecture for the design and development of reconfigurable and fault-tolerant control systems in road vehicles. The performance specifications are guaranteed by local controllers, while the coordination of these components is provided by a supervisor. Since the monitoring components and FDI filters provide the supervisor with information about the various vehicle maneuvers and the different fault operations, it is able to make decisions about necessary interventions into the vehicle motions and guarantee reconfigurable and fault-tolerant operation of the vehicle. The design of the proposed reconfigurable and fault-tolerant control is based on an LPV method that uses monitored scheduling variables during the operation of the vehicle.

Ograniczanie wyników

2 International Journal of Applied Mathematics and Computer Science

2 Bokor J.

2 Szabó Z.

1 Edelmayer A.

1 Gáspár P.

1 Szigeti F.

1 2012

1 2004

Wyniki wyszukiwania

Input reconstruction by means of system inversion: A geometric approach to fault detection and isolation in nonlinear systems

LPV design of fault-tolerant control for road vehicles