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Output feedback of Markov jump linear systems with no mode observation: An automotive throttle application

Vargas, A.N.; Acho, L.; Pujol, G.; Costa, E.F.; Ishihara, J.Y.; Do Val, J.B.R. (2016-01-01)

Summary The note presents an output feedback control strategy for Markov jump linear systems with no mode observation. Based on minimizing a finite-time quadratic cost, we derive an algorithm that generates output feedback ...

A Systematization of the Unscented Kalman Filter Theory

Menegaz, H.M.T.; Ishihara, J.Y.; Borges, G.A.; Vargas, A.N. (2015-12-31)

In this paper, we propose a systematization of the (discrete-time) Unscented Kalman Filter (UKF) theory. We gather all available UKF variants in the literature, present corrections to theoretical inconsistencies, and provide ...

Control of a hysteresis model subject to random failures

Lévano, E.; Vargas, A.N. (2015-12-31)

The note presents conditions to assure weak stability in the mean for a hysteresis Bouc-Wen model controlled by a proportional-integral controller subject to random failures. When a failure happens, the controller turns ...

Mode-independent H2-control of a DC motor modeled as a Markov jump linear system

Oliveira, R.C.L.F.; Vargas, A.N.; Val, J.B.R.D.; Peres, P.L.D. (2014-12-31)

This brief presents a control strategy for Markov jump linear systems (MJLS) with no access to the Markov state (or mode). The controller is assumed to be in the linear state-feedback format and the aim of the control ...

Gradient-based optimization techniques for the design of static controllers for Markov jump linear systems with unobservable modes

Vargas, A.N.; Bortolin, D.C.; Costa, E.F.; Do Val, J.B.R. (2014-12-31)

The paper formulates the static control problem of Markov jump linear systems, assuming that the controller does not have access to the jump variable. We derive the expression of the gradient for the cost motivated by the ...

Almost periodic parameters for the second moment stability of linear stochastic systems

Vargas, A.N.; Do Val, J.B.R. (2014-12-31)

The technical note presents conditions to assure the uniform second moment stability for a class of linear time-varying stochastic systems. The system parameters are assumed to be almost periodic, a concept that is weaker ...

Robust ‚H-2 static output feedback to control an automotive throttle valve

Vargas, A.N.; Acho, L.; Pujol, G.; Oliveira, R.C.L.F.; Do Val, J.B.R.; Peres, P.L.D. (2014-12-31)

The paper presents a control strategy for an automotive electronic throttle body, a device largely used into vehicles to increase the efficiency of the combustion engines. The synthesis of the proposed controller is based ...

On the control of Markov jump linear systems with no mode observation: Application to a DC Motor device

Vargas, A.N.; Costa, E.F.; Do Val, J.B.R. (2013-12-31)

This paper deals with the control problem of discrete-time Markov jump linear systems for the case in which the controller does not have access to the state of the Markov chain. A necessary optimal condition, which is ...

On the numerical solution of the control problem of switched linear systems

Vargas, A.N.; Ishihara, J.Y.; Do Val, J.B.R. (2013-12-31)

This paper presents a method to compute an epsilon-optimal solution of the control problem of switched linear systems. A difficulty that emerges in the evalution of the optimal solution is that the cardinality of the ...

Second moment constraints and the control problem of Markov jump linear systems

Vargas, A.N.; Furloni, W.; Do Val, J.B.R. (2013-12-31)

This paper addresses the optimal solution for the regulator control problem of Markov jump linear systems subject to second moment constraints. We can characterize and obtain the solution explicitly using linear matrix ...