Publications

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Book
Oliveira, R., H. Pita, F. Coito, and A. Steiger-Garção O projecto OCTOPUS: O módulo Reconhecedor de Zonas Oxidadas–. Vol. 60. Jornadas de Engenharia de Telecomunicações e Computadores-ISEL Lisboa, Portugal, 2002. Abstract
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Conference Paper
Pereira, P., H. Fino, F. Coito, and M. Ventim-Neves. "ADISI-An efficient tool for the automatic design of integrated spiral inductors." Electronics, Circuits, and Systems, 2009. ICECS 2009. 16th IEEE International Conference on. IEEE, 2009. 799-802. Abstract
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Ngolo, M., L. B. Palma, F. Coito, L. Gomes, and A. Costa. "Architecture for remote laboratories based on REST web services." E-Learning in Industrial Electronics, 2009. ICELIE'09. 3rd IEEE International Conference on. IEEE, 2009. 30-35. Abstract
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Palma, L. B., F. V. Coito, and R. N. da Silva. "Combined approach to fault diagnosis based on principal components and influence matrix." Intelligent Signal Processing, 2005 IEEE International Workshop on. IEEE, 2005. 171-176. Abstract
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Palma, L. B., F. V. Coito, and RN Silva. "Fault diagnosis based on black-box models with application to a liquid-level system." Emerging Technologies and Factory Automation, 2003. Proceedings. ETFA'03. IEEE Conference. Vol. 2. IEEE, 2003. 739-746. Abstract
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Palma, L. B., and F. V. Coito. "MODELING AND HYBRID CONTROL OF A NONLINEAR DC SERVOMOTOR." 4th Portuguese COnference on Automatic Control - Controlo 2000. SPCA, 2000. Abstract

A nonlinear DC servomotor model with friction, saturation, backlash and motor starting voltage is presented in this paper. Traditionally the position of a servo is controlled with a PD-controller. In the presence of disturbance, PID control results with overshoot and long recovery time. In simulations, the integral time of the controller is modified to fasten the recovery time. To control the position of the servomotor is proposed a Hybrid Control Architecture using a nonlinear PID controller and a Fuzzy PID controller. Simulation results with the Hybrid Controller are presented.

Pinheiro-Pita, HJ, F. Coito, A. Steiger-Garção, R. Gonçalves, and L. Palma. "O projecto OCTOPUS: Modelo da Arquitectura de Software." Jornadas de Engenharia de Telecomunicações e Computadores – JETC99. 1999. Abstract

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Palma, L. B., F. V. Coito, and R. N. da Silva. "Process fault diagnosis approach based on neural observers." Emerging Technologies and Factory Automation, 2005. ETFA 2005. 10th IEEE Conference on. Vol. 1. IEEE, 2005. 4–pp. Abstract
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Palma, L. B., F. V. Coito, and P. S. Gil. "Real-time detection of oscillations in control loops." Power Engineering, Energy and Electrical Drives (POWERENG), 2011 International Conference on. IEEE, 2011. 1-6. Abstract
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Coito, F., and L. B. Palma. "A remote laboratory environment for blended learning." Proceedings of the 1st international conference on PErvasive Technologies Related to Assistive Environments. ACM, 2008. 69. Abstract
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Coito, F., P. Almeida, and L. B. Palma. "SMCRVI-a Labview/Matlab based tool for remote monitoring and control." Emerging Technologies and Factory Automation, 2005. ETFA 2005. 10th IEEE Conference on. Vol. 2. IEEE, 2005. 6–pp. Abstract
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Palma, L. B., and F. V. Coito. "Tuning PCA controllers based on manual control data." Emerging Technologies & Factory Automation (ETFA), 2011 IEEE 16th Conference on. IEEE, 2011. 1-4. Abstract
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Coito, F., and L. B. Palma. "Unfalsification based Fault Tolerant Controller." Emerging Technologies & Factory Automation (ETFA), 2011 IEEE 16th Conference on. IEEE, 2011. 1-4. Abstract
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Pereira, P., M. H. Fino, and F. V. Coito. "Using discrete-variable optimization for CMOS spiral inductor design." Microelectronics (ICM), 2009 International Conference on. IEEE, 2009. 324-327. Abstract
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Journal Article
Palma, L. B., F. Coito, and R. Silva. "Adaptive observer based fault diagnosis approach applied to a thermal plant." submitted to 10th Mediterranean Conference on Control and Automation (2002). Abstract
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Palma, L. B., F. Coito, and R. Neves-Silva. "A combined approach to fault diagnosis in dynamic systems." (2004). Abstract
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Palma, L. B., P. S. Gil, F. V. Coito, and H. Duarte-Ramos. "Dealing with Complexity in Supervision Systems." (2008). Abstract
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Coito, F., and L. Palma. "An Environment for Remote Control–The ERC System." (2004). Abstract
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Palma, L., F. Coito, and R. Neves-Silva. "Failure Analysis on a Process Plant Model Based on Adaptive Filter Techniques." (2003). Abstract
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Palma, L., F. Coito, R. Neves-Silva, and P. Gil. "A Fault Tolerant Approach for Networked Control Systems Using Predictive Models." (2008). Abstract
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Palma, L., R. Neves-Silva, and F. Coito. "Fault tolerant control approach applied to the three-tank system." (2003). Abstract
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Pereira, P., M. Fino, F. Coito, and M. Ventim-Neves. "GADISI–Genetic Algorithms Applied to the Automatic Design of Integrated Spiral Inductors." Emerging Trends in Technological Innovation (2010): 515-522. Abstract
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Palma, L., F. Coito, and R. Neves-Silva. "Neural Observer-Based Approach to Fault Diagnosis applied to a Liquid Level System." (2003). Abstract
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Palma, L., F. Coito, R. Neves-Silva, and F. Almeida. "A Neural PCA Approach To Fault Detection and Diagnosis in Nonlinear Dynamical Systems." (2006). Abstract
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Pereira, P., H. Fino, F. Coito, and M. Ventim-Neves. "Optimization-Based Design of Nano-CMOS LC-VCOs." Technological Innovation for Value Creation (2012): 453-464. Abstract
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