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International Symposium on Applied Computational Intelligence and Informatics ( SACI)

作者： András Mihály Péter Gáspár Department of Control for Transportation and Vehicle Systems Budapest University of Technology and Economics Budapest Hungary Institute for Computer Science and Control MTA-BME Control Engineering Research Group Hungary

The paper presents a driver model identification method based on simulator experiments. The visual and vestibular perception of the driver can be modeled by measuring proper signals of the vehicle motion and the environment during the real-time driving of the simulator. The parameters of different drivers are then estimated using a linear difference autoregressive model structure and least-squares estimation techniques. The aim of the identification is to describe the different driver behaviors with the parameters of a driver model with similar structure. The identified driver models are validated by simulation using the same excitation signals as in the simulator experiment and comparing the measured and simulated output of the driver. The main novelty of the paper is the identification method in which a real-time simulator is used.

关键词： Vehicles Roads Computational modeling Geometry Real-time systems Acceleration Mathematical model

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Nonlinear automotive actuator analysis based on sum of squares programming

Nonlinear automotive actuator analysis based on sum of squar...

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European control Conference (ECC)

作者： Balázs Németh Péter Gáspár Tamás Péni Systems and Control Laboratory Hungarian Academy of Sciences Budapest Hungary Magyar Tudomanyos Akademia Budapest Budapest HU Institute for Computer Science and Control MTA-BME Control Engineering Research Group Hungary

ISBN: (纸本)9781479947287

The paper analyses the maximum controlled Invariant Sets of vehicle actuators. In the calculation of the shape of the sets a nonlinear polynomial Sum-of-Squares (SOS) programming method is applied. The aim of the analysis is to identify the similarities and differences between the different actuator interventions and provide a theoretical basis for their coordination. The maximum controlled Invariant Sets of the steering and the brake control systems are analyzed at various velocities and road conditions. In the analysis the nonlinear characteristics of the lateral tire force are considered with a polynomial approximation. The results of the analysis are illustrated through a simulation example.

关键词： Polynomials Actuators Tires Vehicles Vehicle dynamics Programming Stability analysis

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Set-based analysis of the variable-geometry suspension system

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IFAC Proceedings Volumes 2014年第3期47卷 11201-11206页

作者： Balázs Németh Peter Gáspár Institute for Computer Science and Control Hungarian Academy of Sciences Hungary Kende u. 13-17 H-1111 Budapest Hungary Phone: +36-12796173 Institute for Computer Science and Control Hungarian Academy of Sciences MTA-BME Control Engineering Research Group Hungary Fax: +36-14667503 Phone: +36-12796171

The paper gives an analysis of a variable-geometry suspension system. Since the system also affects both the wheel camber angle and the additional steering angle, the coordination of steering and wheel tilting can be handled by this system. Since the nonlinear effects of the system are significant, the paper gives a detailed set-based analysis for the possibilities and constrains. A nonlinear polynomial SOS (Sum-of-Squares) programming method is applied to present the advantages of the variable-geometry suspension system.

关键词： Variable-geometry suspension Performance analysis SOS method Reconfigurable control

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Design of adaptive cruise control for road vehicles using topographic and traffic information

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IFAC Proceedings Volumes 2014年第3期47卷 4184-4189页

作者： Péter Gáspár Balázs Németh Institute for Computer Science and Control Hungarian Academy of Sciences MTA-BME Control Engineering Research Group Hungary Fax: +36-14667503 Phone: +36-12796171 Institute for Computer Science and Control Hungarian Academy of Sciences Hungary Kende u. 13-17 H-1111 Budapest Hungary Phone: +36-12796173

The paper proposes the design of the speed of road vehicles, which minimizes control energy and fuel consumption while keeping travelling time and, moreover, considers the local traffic information to avoid conflicts in congestions. Topographic data and speed limits on the road are incorporated into the design of fuel efficient operation of the vehicle. Since the biased consideration of fuel consumption may lead to the reduction of speed, the traffic flow in the surroundings of the vehicle may be impaired. Thus, the information about the local traffic is an important factor considering the wider transportation system. In the paper the energy-efficient predicted cruise control strategy is presented, which is able to adapt to the motion of the surrounding vehicles. In this way a balance between the designed speed and the flow of the local traffic can be guaranteed.

关键词： adaptive cruise control look-ahead control road preview traffic information optimization

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Analysis, filtering, and control for takagi-sugeno fuzzy models in networked systems

Abstract and Applied Analysis

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Abstract and Applied Analysis 2015年第1期2015卷

作者： Zhang, Sunjie Wang, Zidong Hu, Jun Liang, Jinling Alsaadi, Fuad E. School of Information Science and Technology Donghua University Shanghai 200051 China Department of Computer Science Brunel University Uxbridge Middlesex UB8 3PH United Kingdom Communication Systems and Networks (CSN) Research Group Faculty of Engineering King Abdulaziz University Jeddah 21589 Saudi Arabia Research Institute of Intelligent Control and Systems Harbin Institute of Technology Harbin 150001 China Department of Applied Mathematics Harbin University of Science and Technology Harbin 150080 China Department of Mathematics Southeast University Nanjing 210096 China

The fuzzy logic theory has been proven to be effective in dealing with various nonlinear systems and has a great success in industry applications. Among different kinds of models for fuzzy systems, the so-called Takagi-Sugeno (T-S) fuzzy model has been quite popular due to its convenient and simple dynamic structure as well as its capability of approximating any smooth nonlinear function to any specified accuracy within any compact set. In terms of such a model, the performance analysis and the design of controllers and filters play important roles in the research of fuzzy systems. In this paper, we aim to survey some recent advances on the T-S fuzzy control and filtering problems with various network-induced phenomena. The network-induced phenomena under consideration mainly include communication delays, packet dropouts, signal quantization, and randomly occurring uncertainties (ROUs). With such network-induced phenomena, the developments on T-S fuzzy control and filtering issues are reviewed in detail. In addition, some latest results on this topic are highlighted. In the end, conclusions are drawn and some possible future research directions are pointed out. © 2015 Sunjie Zhang et al.

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Look-ahead control of road vehicles for safety and economy purposes

Look-ahead control of road vehicles for safety and economy p...

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European control Conference (ECC)

作者： András Mihály Balázs Németh Péter Gáspár Department of Control for Transportation and Vehicle Systems Budapest University of Technology and Economics Budapest Hungary Systems and Control Laboratory Hungarian Academy of Sciences Budapest Hungary Institute for Computer Science and Control MTA-BME Control Engineering Research Group Hungary

ISBN: (纸本)9781479947287

The paper proposes a look-ahead cruise control method considering both energy efficiency and the safety of vehicle motion. Based on the curve radius of the road, a method is proposed for the calculation of the safe cornering velocity, which is used in the look-ahead control design process. If the speed limit is in conflict with the calculated safe cornering velocity, the latter is applied in the energy optimization process of the look-ahead control algorithm. Thus, the designed velocity is coherent with the terrain characteristics, the speed limits and the geometry of the road as well, enabling the vehicle to travel safely and energy efficiently along the path. The main novelty of the paper is the consideration of the safe cornering velocity in the look-ahead design, improving energy efficiency and the safety of the vehicle during various maneuvers.

关键词： Vehicles Roads Friction Energy efficiency Force Safety Optimization

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Distributed MPC for Frequency Regulation in Multi-Terminal HVDC Grids

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IFAC Proceedings Volumes 2014年第3期47卷 11141-11146页

作者： Paul Mc Namara Ronan Meere Terence O'Donnell Seán McLoone Dynamics and Control Research Group Dept. Electronic Engineering Callan Building NUI Maynooth Maynooth Kildare Ireland Electricity Research Centre Engineering & Materials Science Centre University College Dublin Belfield Dublin 4 Ireland Energy Power and Intelligent Control Research Cluster School of Electronics Electrical Engineering and Computer Science Queen's University Belfast Belfast Northern Ireland

High Voltage Direct Current (HVDC) lines allow large quantities of power to be transferred between two points in an electrical power system. A Multi-Terminal HVDC (MTDC) grid consists of a meshed network of HVDC lines, and this allows energy reserves to be shared between a number of AC areas in an efficient manner. Secondary Frequency control (SFC) algorithms return the frequencies in areas connected by AC or DC lines to their original setpoints after Primary Frequency controllers have been called following a contingency. Where multiple TSOs are responsible for different parts of a MTDC grid it may not be possible to implement SFC from a centralised location. Thus, in this paper a simple gain based distributed Model Predictive control strategy is proposed for Secondary Frequency control of MTDC grids which allows TSOs to cooperatively perform SFC without the need for centralised coordination.

关键词： Multi-terminal HVDC Distributed MPC Secondary Frequency control

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Faults and fault propagation modeling in manufacturing systems based on colored petri nets 28

Faults and fault propagation modeling in manufacturing syste...

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28th European Simulation and Modelling Conference, ESM 2014

作者： Gerzson, Miklós Leitold, Adrien Hangos, Katalin M. Dept. of Electrical Engineering and Information System University of Pannonia P.O.B. 158 VeszprémH-8201 Hungary Department of Mathematics University of Pannonia P.O.B. 158 VeszprémH-8201 Hungary Process Control Research Group Computer and Automation Research Institute P.O.B. 63 BudapestH-1518 Hungary

ISBN: (纸本)9789077381861

A novel fault integration method is proposed in this paper for manufacturing system models given in the form of timed colored Petri nets. The faults are assumed to have a stochastic nature and are represented in the form of transitions firing in stochastic way with known fault probabilities in the system model. A novel fault effect propagation method was also developed, that can be used to compute the probabilities of the possible faulty and non-faulty intermediate and final states of the system using the probabilities of faults and the occurrence graph. The faultless and fault containing models were implemented in CPNTools both for non-timed and timed cases. A software module was also developed for the proposed probabilistic fault propagation analysis. The proposed methods and tools were demonstrated using a simple case study.

关键词： Manufacture

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On-line qualitative model-based diagnosis of technological systems using colored petri nets 28

On-line qualitative model-based diagnosis of technological s...

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28th European Simulation and Modelling Conference, ESM 2014

作者： Leitold, Adrien Gerzson, Miklós Pózna, Anna I. Hangos, Katalin M. Department of Mathematics University of Pannonia P.O.B. 158 VeszprémH-8201 Hungary Dept. of Electrical Engineering and Information System University of Pannonia P.O.B. 158 VeszprémH-8201 Hungary Process Control Research Group Computer and Automation Research Institute P.O.B. 63 BudapestH-1518 Hungary

ISBN: (纸本)9789077381861

A novel on-line diagnosis method is proposed in this paper that uses a qualitative dynamic model of the system and its colored Petri nets model. The model contains both the normal and the possible faulty operational modes of the system. The deviation between the normal and faulty modes is characterized based on P-HAZID tables. The actual system state can be searched on the occurrence graph constructed in advance. Starting from this node the possible consequences and root causes can be determined on-line with traversing on the graph. The proposed method is illustrated on simple case studies.

关键词： Petri nets

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Design and experimental implementation of a robust DLQR for three-phase grid-connected converters 11

Design and experimental implementation of a robust DLQR for ...

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11th IEEE/IAS International Conference on Industry Applications, IEEE INDUSCON 2014

作者： Maccari, Luiz Antonio Do Amarai Santini, Claudio Luiz Oliveira, Ricardo C.L.F. Montagner, Vinicius Foletto Power Electronics and Control Research Group-GEPOC Federal University of Santa Maria-UFSM Santa-Maria Rio Grande do Sul Brazil Center of Technology-NT Federal University of Rondônia-UNIR Porto-Velho Rondonia Brazil School of Electrical and Computer Engineering-FEEC University of Campinas-UNICAMP Campinas Sao Paulo Brazil

ISBN: (纸本)9781479955510

This paper deals with the design of robust discrete linear quadratic regulators applied to three-phase inverters connected to the grid by means of LCL filters. The system is modeled in the state space in abc coordinates and changed to aß coordinates, allowing a simple control design and implementation. Resonant controllers are used to ensure the tracking of sinusoidal references for grid current. The control gains are computed by means of a convex optimization problem and ensure that the closed-loop system is robustly stable when operating under conditions of uncertain grid inductance. The controller is experimentally validated with a 5.4 kW prototype, showing good results for three-phase grid current control. © 2014 IEEE.

关键词： Closed loop systems

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