Simulation of Electric Vehicles Combining Structural and Functional Approaches

In this paper the construction of a model that represents the behavior of an Electric Vehicle is described. Both the mechanical and the electric traction systems are represented using Multi-Bond Graph structural approach suited to model large scale physical systems. Then the model of the controllers, represented with a functional approach, is included giving rise to an integrated model which exploits the advantages of both approaches. Simulation and experimental results are aimed to illustrate the electromechanical interaction and to validate the proposal.Fil: Silva, Luis Ignacio. Consejo Nacional de Investigaciones Científicas y Técnicas; Argentina. Universidad Nacional de Rio Cuarto. Facultad de Ingeniería. Grupo de Electronica Aplicada; ArgentinaFil: Magallán, Guillermo Andrés. Consejo Nacional de Investigaciones Científicas y Técnicas; Argentina. Universidad Nacional de Rio Cuarto. Facultad de Ingeniería. Grupo de Electronica Aplicada; ArgentinaFil: de la Barrera, Pablo Martin. Consejo Nacional de Investigaciones Científicas y Técnicas; Argentina. Universidad Nacional de Rio Cuarto. Facultad de Ingeniería. Grupo de Electronica Aplicada; ArgentinaFil: de Angelo, Cristian Hernan. Consejo Nacional de Investigaciones Científicas y Técnicas; Argentina. Universidad Nacional de Rio Cuarto. Facultad de Ingeniería. Grupo de Electronica Aplicada; ArgentinaFil: Garcia, Guillermo. Consejo Nacional de Investigaciones Científicas y Técnicas; Argentina. Universidad Nacional de Rio Cuarto. Facultad de Ingeniería. Grupo de Electronica Aplicada; Argentin

ANALIZA STAKEHOLDERILOR SI A ROLULUI ACESTORA IN GUVERNAREA ELECTRONICA

Articolul analizeaza stakeholderii din punct de vedere al politicilor de guvernare electronica, al accesului la serviciile de guvernare electronica si al infrastructurii de guvernare electronica. Principalii stakeholderi implicati in guvernarea electronica sunt cetatenii, mediul de afaceri si guvernul, la care se adauga si alte institutii. Nivelul de implicare al acestora in promovarea guvernarii electronice se masoara prin analiza politicilor prioritare, a instrumentelor referitoare la participarea electronica, cat si a instrumentelor care implica stakeholderii In procesul de luare a deciziilor.stakeholder, guvernare electronica, procesul de luare a deciziilor

STADIUL GUVERNARII ELECTRONICE IN ORASELE EUROPENE

Lucrarea descrie procesele reale si experientele de guvernare electronica in orasele din Europa. Prima parte este dedicata analizei tipurilor de clienti ai sistemelor ce implementeaza guvernarea electronica si relatiile dintre acestia din perspective serviciilor specifice guvernarii electronice implementate in orasele europene. Analiza se bazeaza pe elementele referitoare la acces, continut si infrastructura. In final se discuta despre eReadiness ca masura a gradului de pregatire al oraselor europene pentru guvernare electronica. Toate orasele sunt interesate in implicarea larga a cetatenilor si utilizatorilor, ceea ce reprezinta un pas important si necesar de extindere a calitatii guvernarii electronice in contextul urban.guvernare electronica, servicii electronice, implicarea cetatenilor

UTILIZAREA TEHNOLOGIILOR INFORMATIEI SI COMUNICATIILOR IN MODELE DE GUVERNARE ELECTRONICA

Articolul descrie rolul transformator al tehnologiilor informatiilor si comunicatiilor in obtinerea unei guvernari de tip nou, electronice, orientate spre cetateni si promovarea valorilor democratice. In cele cinci modele de guvernare electronica analizate pe parcursul lucrarii, tehnologiile au un rol semnificativ din punct de vedere tehnic, de suport sau de innoire. Masura in care un guvern este pregatit sa utilizeze aceste tehnologii pentru a avea un contact direct si interactiune cu cetatenii este analizata in acest articol prin introducerea conceptului cunoscut sub numele eReadiness. Reuniunea dintre domeniul portalurilor Web de servicii si domeniul instrumentelor tehnologice ce permit si pot imbunatati democratia electronica defineste domeniul guvernarii electronice.TIC, guvernare electronica, democratie electronica

Power-Integrated Circuit Active Leakage Current Detector

Most of the failures of induction motors become insulation faults, causing a permanent damage. Using differential current transformers, a system capable of insulation fault detection was developed, based on the differential relay protection scheme. Both signal injection and fault detection circuitry were integrated in a single chip. The proposed scheme is faster than other existing protection and not restricted to protect induction motors, but several other devices (such as IGBTs) and systems. This paper explains the principle of operation of fault protection scheme and analyzes an integrated implementation through simulations and experimental results. A power-integrated circuit (PIC) implementation is presented.Fil: Bulacio, M. F.. Universidad de Buenos Aires. Facultad de Ingeniería. Departamento de Electronica; ArgentinaFil: González, Tomás Andrés. Universidad de Buenos Aires. Facultad de Ingeniería. Departamento de Electronica; Argentina. Consejo Nacional de Investigaciones Científicas y Técnicas; ArgentinaFil: Marinelli, Guido. Universidad de Buenos Aires. Facultad de Ingeniería. Departamento de Electronica; ArgentinaFil: Alonso, Ramiro. Universidad de Buenos Aires. Facultad de Ingeniería. Departamento de Electronica; ArgentinaFil: Tacca, Hernán Emilio. Universidad de Buenos Aires. Facultad de Ingeniería. Departamento de Electronica; Argentin

Voice Conversion Using K-Histograms and Residual Averaging

The main goal of a voice conversion system is to modify the voice of a source speaker, in order to be perceived as if it had been uttered by another specific speaker.   Many approaches found in the literature convert only the features related to the vocal tract of the speaker. Our proposal is to convert those characteristics of the vocal tract, and also to process the signal passing through the vocal chords. Thus, the goal of this work is to obtain better scores in the voice conversion results.Fil: Uriz, Alejandro José. Universidad Nacional de Mar del Plata. Facultad de Ingenieria. Departamento de Electronica. Laboratorio de Comunicaciones; ArgentinaFil: Pablo D. Agüero. Consejo Nacional de Invest.cientif.y Tecnicas. Centro Cientifico Tecnol.conicet - Mar del Plata;Fil: Castiñeira Moreira; Jorge. Universidad Nacional de Mar del Plata. Facultad de Ingenieria. Departamento de Electronica. Laboratorio de Comunicaciones;Fil: Tulli, J. C.. Universidad Nacional de Mar del Plata. Facultad de Ingenieria. Departamento de Electronica. Laboratorio de Comunicaciones; ArgentinaFil: González, Esteban Lucio. Consejo Nacional de Invest.cientif.y Tecnicas. Centro Cientifico Tecnol.conicet - Mar del Plata; ArgentinaFil: Bonafonte, A.. Universidad Nacional de Mar del Plata. Facultad de Ingenieria. Departamento de Electronica. Laboratorio de Comunicaciones; Argentin

Determination of the adjoint state evolution for the efficient operation of a hybrid electric vehicle

To minimize the fuel consumption in hybrid electric vehicles, it is necessary to define a strategy for the management of the power flows within the vehicle. Under the assumption that the velocity to be developed by the vehicle is known a priori, this problem may be posed as a nonlinear optimal control problem with control and state constraints. We find the solution to this problem using the optimality conditions given by the Pontryagin Maximum Principle. This leads to boundary value problems that we solve using a software tool named PASVA4. On real time operation, the velocity to be developed by the vehicle is not known in advance. We show how the adjoint state obtained from the former problem may be used as a weighing factor, called ‘‘equivalent consumption’’. This weighing factor may be used to design suboptimal real time algorithms for power management.Fil: Perez, Laura Virginia. Universidad Nacional de Rio Cuarto. Facultad de Ingeniería. Grupo de Electronica Aplicada; Argentina. Consejo Nacional de Investigaciones Científicas y Técnicas; ArgentinaFil: de Angelo, Cristian Hernan. Universidad Nacional de Rio Cuarto. Facultad de Ingeniería. Grupo de Electronica Aplicada; Argentina. Consejo Nacional de Investigaciones Científicas y Técnicas; ArgentinaFil: Pereyra, Víctor. San Diego State University; Estados Unido

Alternative Admissible Biased Estimators

In this work, a biased estimator obtained from an affine transformation of an unbiased estimator will be analyzed. In particular, the method proposed by Y. C. Eldar will be studied, and alternative approaches will be developed for the construction of biased estimators through transformations of unbiased ones. It is finally shown through simulations, that both estimators proposed in this work perform better than other estimators analyzed.Fil: Cernuschi Frias, Bruno. Consejo Nacional de Investigaciones Científicas y Técnicas. Oficina de Coordinación Administrativa Saavedra 15. Instituto Argentino de Matemáticas; Argentina. Universidad de Buenos Aires. Facultad de Ingenieria. Departamento de Electronica; ArgentinaFil: Gama, Fernando. Universidad de Buenos Aires. Facultad de Ingenieria. Departamento de Electronica; ArgentinaFil: Casaglia, Daniel. Universidad de Buenos Aires. Facultad de Ingenieria. Departamento de Electronica; Argentin

Computer science and technology : historiography IV (9 - part three)

Cyberpunk, Electronica, Prototype

Ars Informatica -- Ars Electronica: Improving Sonification Aesthetics

In this paper we discuss æsthetic issues of sonifications. We posit that many sonifications have suffered from poor acoustic ecology which makes listening more difficult, thereby resulting in poorer data extraction and inference on the part of the listener. Lessons are drawn from the electro acoustic music community as we argue that it is not instructive to distinguish between sonifications and music/sound art. Edgar Var`ese defined music as organised sound and sonifications organise sound to reflect some aspect of the thing being sonified. Therefore, we propose that sonification designers can improve the communicative ability of their auditory displays by paying attention to the æsthetic issues that are well known to composers, orchestrators, sound designers & artists, and recording engineers