Considerable resources worldwide are invested in the research and development of future transportation technology. The foreseen direction and therefore research of future personalised transportation is focused on Battery Electric Vehicles (BEV) or hybrid combinations that use hydrogen fuel cells. These new transport energy systems are consider most to replace the current vehicles powered by the internal combustion engine (ICE). The research work presented in this thesis mainly focuses on the development of a software control system for future BEV prototype vehicles - a generic intelligent control system (GICS). The system design adopts a modular design concept and intelligent control. The whole system consists of four modules being communication, power supply, motor driver and transmission module. Each module uses a microcontroller as the brain and builds an embedded control system within the module. The control and communication between the modules is based on a group of specific parameters and the status of a state machine. In order to effectively implement intelligent control and simplify the system structure and programming, a generic intelligent fuzzy logic model that can be configured to a specific application with a near real-time buffered communication methodology is developed. The tests made on the fuzzy control model and the near real-time buffered communication gave a very positive outcome. The implementation of the fuzzy control and the communication methodology in each of the modules results in a communication between the modules with a steady speed, better reliability and system stability. These modules link together through the communication channels and form a multi-agent collaborative system (MACS). As the controllers are designed based on the parametric concept, the system is able to be implemented to future new modules and therefore allow prototype vehicle control systems to be developed more efficiently. The MACS is based on the core components of the control system - fuzzy logic controller (FLC), Serial Communication and Analogue input control software modules. Further work is carried out as an attempt to integrate the control software with a hardware design for a generic electric propulsion drive (GEPD). This thesis therefore outlines the design and considerations in software and hardware integration in addition to the GICS. The output from this thesis being the construction of soft programming modules for embedded microcontroller based control system has been accepted and presented at two international conferences; one in Wellington, New Zealand[1] the second in Acireale, Italy[2].

Considerable resources worldwide are invested in the research and development of future transportation technology. The foreseen direction and therefore research of future personalised transportation is focused on Battery Electric Vehicles (BEV) or hybrid combinations that use hydrogen fuel cells. These new transport energy systems are consider most to replace the current vehicles powered by the internal combustion engine (ICE). The research work presented in this thesis mainly focuses on the development of a software control system for future BEV prototype vehicles - a generic intelligent control system (GICS). The system design adopts a modular design concept and intelligent control. The whole system consists of four modules being communication, power supply, motor driver and transmission module. Each module uses a microcontroller as the brain and builds an embedded control system within the module. The control and communication between the modules is based on a group of specific parameters and the status of a state machine. In order to effectively implement intelligent control and simplify the system structure and programming, a generic intelligent fuzzy logic model that can be configured to a specific application with a near real-time buffered communication methodology is developed. The tests made on the fuzzy control model and the near real-time buffered communication gave a very positive outcome. The implementation of the fuzzy control and the communication methodology in each of the modules results in a communication between the modules with a steady speed, better reliability and system stability. These modules link together through the communication channels and form a multi-agent collaborative system (MACS). As the controllers are designed based on the parametric concept, the system is able to be implemented to future new modules and therefore allow prototype vehicle control systems to be developed more efficiently. The MACS is based on the core components of the control system - fuzzy logic controller (FLC), Serial Communication and Analogue input control software modules. Further work is carried out as an attempt to integrate the control software with a hardware design for a generic electric propulsion drive (GEPD). This thesis therefore outlines the design and considerations in software and hardware integration in addition to the GICS. The output from this thesis being the construction of soft programming modules for embedded microcontroller based control system has been accepted and presented at two international conferences; one in Wellington, New Zealand[1] the second in Acireale, Italy[2].

Since its emergence in the late 1960s, mechatronics has become well-established as an academic subject, and is now researched and taught at a large number of universities worldwide. The most widely-used definition of the subject today is centered on the synergistic integration of mechanical engineering, electronics, and intelligent computer control. The aim of this thesis is to work between the disciplines of engineering education and mechatronics to address both the question of the identity of the subject of mechatronics and the ways in which this identity can be reflected in the practice of mechatronics education. Empirical data from the literature is supplemented with further data from four case studies with approaches varying from exploratory case studies and ethnographic in-depth studies to explanatory studies with an action research based approach. The process and results of the investigation can be divided into three aspects. Firstly, analysis of the subject of mechatronics shows that its identity is thematic and its legitimacy is functional, implying that the selection and communication of the subject ought to be exemplifying and interactive respectively. Secondly, and following this analysis, the concept of international collaboration is used as the implementation for the first two case studies. The results of these studies show a relationship between collaborative projects and enhanced disciplinary learning and skills, increased awareness of cultural differences, and improved motivation. Another potential implementation, experimental learning, is then tested in two action research based studies focusing on fast prototyping and individual access to laboratory equipment. Mechatronics is a special subject, not easily understood or taught. To be mechatronic is to be synergistic, and to be synergistic generally demands expertise in all underlying subjects. The conclusion of this thesis is that this requires a non-traditional education where the focus is on training rather than studying, coaching rather than teaching, experimenting rather than reading, working together rather than apart, and being mechatronic rather than studying mechatronics. / Mekatronik som ämne uppstod under 1960-talets senare del och har sedan dess etablerats som akademiskt ämne som beforskas och undervisas på ett stort antal universitet runt om i världen. Den idag mest utbredda definitionen av ämnet fokuserar på synergi och synergistisk integration av maskinteknik, elektronik och intelligent datorstyrning. Målsättningen med denna avhandling är att bidra till forskning i området mellan de två fälten ingenjörsutbildning och mekatronik. Forskningsfrågan behandlar identiteten hos ämnet mekatronik och hur denna identitet kan återspeglas i undervisningens praktik. Empiriskt material för denna avhandling har hämtats från litteraturen tillsammans med fyra fallstudier. Forskningsmetodiken i fallstudierna har varierats från utforskande fallstudier och etnografiska djuplodande studier till förklarande studier med en aktionsforskningsansats. Studien och resultaten därutav kan delas in i tre delar. Den första delen behandlar ämnet mekatronik och visar att ämnets identitet är tematisk och att legitimiteten är funktionell. Detta innebär att ämnets selektion och kommunikation bör vara exemplifierande respektive interaktiv. I den andra delen används denna definition för studier av internationellt samarbete i mekatronik, vilket utgör basen för de två första fallstudierna. Resultaten från dessa studier visar på en relation mellan det internationella samarbetet och ett ökat disciplinärt lärande, ökad medvetenhet om kulturella skillnader samt en ökad motivation. Den tredje delen relateras till ytterligare en tänkbar implementation av definitionen, en idé om experimentellt lärande. Denna prövas i två studier baserade på aktionsforskning som behandlar snabb prototypframställning och individuell tillgång till avancerad laborationsutrustning. Mekatronik är ett speciellt ämne, inte helt enkelt att förstå eller undervisa. Att vara mekatronisk innebär att vara synergistisk, och att vara synergistisk kräver vanligtvis expertkunskap i de underliggande områdena. Resultatet av denna avhandling är att detta kräver en icke-traditionell undervisning där fokus är på träning snarare än studerande, handledning och guidning snarare än undervisning, experimenterande snarare än läsning, arbete tillsammans snarare än individuellt och att vara mekatronisk snarare än att studera mekatronik. / QC 20100609

Design, production and development of individual mini/micro robots and then formation of their cooperative colony are the main topics of this thesis. The produced mini/micro robots are as small and light as possible. In addition, they are multifunctional (programmable), flexible and intelligent while maintaining a very low production cost. Mini/micro robots, called MinT-DB series are able to communicate with each other to work cooperatively. Moreover, these robots can be the basis for the future studies considering the application of artificial intelligence and modeling of live colonies in the nature. Traditional design, production and assembly techniques have been used widely up to now. However, none of them were related with the mini/micro scale. Therefore, this thesis can help people in understanding the difficulties of the design, production, and assembly of the mini/micro systems under the light of the reported science. In this thesis, instead of examining a specific application field of mini/micro robotic systems, a technology demonstrative work is carried out. Therefore, this thesis contributes to the mini/micro robotic technology, which is also very new and popular in today&amp / #8217 / s world, with the robots having the dimensions of 7.5x6x6 cm.

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This Bachelor thesis is a part of a bachelor project which includes building, programming and controlling a 3DOF tandem helicopter. This particular report deals with the propulsion units, i.e. the motors and propellers of the helicopter. It covers the process of how to determine the most suitable propulsion units for the rig that eventually will enable it to run. To achieve this, different data have been processed. Torque and thrust are two important parameters that have been studied. The data have been acquired by different tests, e.g. thrust measurements from a thrust rig. Also more complex analysis such as Blade Element Theory and Actuator Disk Theory have been carried out in order to determine the behaviour of the propulsion units. Study data sheets and databases was also a part of the work. The result of this work was two equal propulsion units which were mounted in the helicopter. They proved to work satisfactory and provided wanted dynamics to the system. / Design & Implementation of a 3DOF Helicopter

The work presented in the thesis concerns the design and development of a novel thruster fault diagnosis and accommodation system (PDAS) for overactuated, open-frame underwater vehicles. The remotely operated vehicles (ROVs) considered in this thesis have four thrusters for motion in the horizontal plane with three controllable degrees of freedom (DoF). Due to the redundancy resulting from this configuration, for the case of a partial fault or a total fault in a single thruster it is possible to reallocate control among operable thrusters in order that the ROV pilot is able to maintain control of the faulty ROV and to continue with missions. The proposed PDAS consists of two subsystems: a fault diagnosis subsystem (FDS) and a fault accommodation subsystem (FAS). The FDS uses fault detector units to monitor thruster states. Robust and reliable interrogation of thruster states, and subsequent identification of faults, is accomplished using methods based on the integration of selforganising maps and fuzzy logic clustering. The FAS uses information provided by the FDS to perform an appropriate redistribution of thruster demands in order to accommodate faults. The FAS uses a hybrid approach for control allocation, which integrates the pseudoinverse method and the fixed-point iterations method. A control energy cost function is used as the optimisation criteria. In fault-free and faulty cases the FAS finds the optimal solution, which minimises this criteria. The concept of feasible region is developed in order to visualise thruster velocity saturation bounds. The PDAS provides a dynamic update of saturation bounds using a complex three-dimensional visualisation of the feasible region (attainable command set), such that the ROV pilot is informed with the effects of thruster fault accommodation, incorporated in the new shape of the attainable command set. In this way the ROV pilot can easy adapt to newly created changes and continue the mission in the presence of a fault. The prototype of the PDAS was developed in the MATLAB environment as a Simulink model, which includes a nonlinear model of an ROV with 6 DOF, propulsion system and a hand control unit. The hand control unit was simulated in hardware using a joystick as input device to generate command signals. Different fault conditions are simulated in order to investigate the performance of the PDAS. A virtual underwater world was developed, which enabled tuning, testing and evaluation of the PDAS using simulations of two underwater vehicles (FALCON, Seaeye Marine Ltd. and URIS, University of Girona) in a 'realistic' underwater environment. The performance of the PDAS was demonstrated and evaluated via tank trials of the FALCON ROV in QinetiQ Ocean Basin Tank at Haslar, where the existing control software was enhanced with the PDAS algorithm. The results of real-world experiments confirmed the effectiveness of the PDAS in maintaining vehicle manoeuvrability and in preserving the vehicle mission in the presence of thruster faults.

Une maladie appelée cholestéatome affecte l'oreille moyenne, en absence de traitement, elle pourrait conduire à des complications graves. Le seul traitement dans la pratique médicale actuelle est une procédure chirurgicale. Les incidences de cholestéatome résiduelle ou récurrente sont élevés et le patient doit subir plus d'une intervention chirurgicale. Par conséquent, un système robotique original a été proposé pour d'éliminer l'incidence du cholestéatome résiduel en enlevant efficacement toutes les cellules infectées de la première intervention chirurgicale, et de faire une chirurgie moins invasive. Ainsi, ce manuscrit montre les différents défis auxquels fait face le chirurgien à travers une telle micro-procédure. Il est également défini le cahier de charge pour la réalisation d'un système futuriste dédié à la chirurgie du cholestéatome. En outre, un contrôleur est proposé comme un première étape vers le système idéal. Un tel contrôleur permet de guider un outil chirurgical rigide afin de suivre un chemin de référence sous les contraintes du trou d'incision. Le contrôleur proposé peut guider soit un outil droit, soit un outil courbe. En effet, le contrôleur proposé est une commande de haut niveau qui es formulé dans l'espace de tâche (ou espace Cartésien). Ce contrôleur est une couche modulaire qui peut être ajoutée à différentes structures robotiques. Le contrôleur proposé a montré de bons résultats en termes de précision tout en étant évalué sur un robot parallèle et un robot en série. / A disease called cholesteatoma affects the middle ear, in the absence of treatment, it could lead to serious complications. The only treatment in current medical practice is a surgical procedure. Incidences of residual or recurrent cholesteatoma are high and the patient may have more than one surgical procedure. Therefore, a novel robotic system was proposed to eliminate the incidence of residual cholesteatoma by removing efficiently all infected cells from the first surgery, and make a less invasive surgery. Thus, this manuscript shows the different challenges that face the surgeon through such a micro-procedure. It also is specified the requirements for achieving a futuristic system dedicated to cholesteatoma surgery. In addition, a controller is proposed as a first step toward the ideal system. Such a controller allows to guide a rigid surgical tool for following a reference path under the constraints of the incision hole. The proposed controller can guide either a straight tool or a curved one. Indeed, the proposed controller is a high level control which is formulated in the task-space (or Cartesian-space). This controller is a modular layer which can be added to different robotics structures. The proposed controller showed a good results in term of accuracy while assessed on a parallel robot and a serial one.

Este trabajo propone un sistema mecatrónico orientado a la extracción de la cáscara del aguaymanto. El sistema propuesto apunta a reducir el tiempo de descascarado de la fruta, que en la actualidad es realizado de forma manual. La idea es ampliar la producción y mantener estándares de calidad del producto. El sistema propuesto se compone de un sistema mecánico de distribución y ordenamiento por vibración en una zaranda, que apunta a posicionar el fruto haciendo uso de filtros mecánicos, siendo finalmente ordenados y distribuidos en seis líneas de producción. Asimismo, se compone de un sistema de transporte y alineamiento previo descascarado, este último se encarga de variar la posición del aguaymanto hasta ser ingresado al sistema de extracción de cáscara. En caso la orientación no sea la adecuada, la unidad de extracción en conjunto con el sistema de alineamiento ubicará al aguaymanto en sentido lateral, ideal para la extracción. Para el proceso de validación del sistema se tomó en cuenta el número de frutos procesados por unidad de tiempo y la calidad del producto obtenido. En este caso se obtuvo una tasa de 0.5 kg/min y un porcentaje de frutos correctamente descascarado de 93.8%. Ambos parámetros de medición de desempeño están dentro del rango de valores establecidos por las empresas productoras, siendo la tasa un valor escalable directamente proporcional al número de líneas de producción. / This work proposes a mechatronic system oriented to the extraction of the shell of the aguaymanto. The proposed system aims to reduce the time for shelling the fruit, which is currently done manually. The idea is to expand the production and maintain product quality standards. The proposed system consists of a mechanical distribution and ordering system by vibration in a sieve, which aims to position the product using mechanical filters, being finally ordered and distributed in six production lines. Likewise, it consists of a transport system and alignment before the peeled. This one is responsible for varying the position of the aguaymanto until it is entered into the shell extraction system. In case the orientation is not correct, the extraction unit together with the lateral alignment system will locate the ideal position of the aguaymanto for extraction. For the validation process of the system, the number of fruits processed per unit of time and the quality of the product obtained were taken into account. In this case, a rate of 0.5 kg / min and a percentage of correctly shelled fruits of 93.8% were obtained. Both performance measurement parameters are within the range of values ​​established by the production companies, the rate being a scalable value directly proportional to the number of production lines. / Tesis

<div>Efficient engine operation is a fundamental control problem in automotive applications. Robust control algorithms are necessary to achieve satisfactory, safe engine performance</div><div>at all operating conditions while reducing emissions. This thesis develops a framework for control architecture design to enable robust air handling system management.</div><div><br></div><div>The first work in the thesis derives a simple physics-based, control-oriented model for turbocharged lean burn engines which is able to capture the critical engine dynamics that are</div><div>needed to design the controller. The control-oriented model is amenable for control algorithm development and includes the impacts of modulation to any combination of four actuators: throttle valve, bypass valve, fuel rate, and wastegate valve. The controlled outputs: engine speed, differential pressure across throttle and air-to-fuel ratio are modeled as functions of selected states and inputs. Two validation strategies, open-loop and closed-loop are used to validate the accuracy of both nonlinear and linear versions of the control-oriented model. The relative gain array is applied to the linearized engine model to understand the degree of interactions between plant inputs and outputs as well as the best input-output pairing as a function of frequency. With strong evidence of high degree of coupling between inputs and outputs, a coordinated multiple-input multiple-output (MIMO) controller is hypothesized to perform better than a single-input single-output (SISO) controller. A framework to design robust model-based H1 MIMO controllers for any given linear plant, while considering state and output multiplicative uncertainties as well as actuator bandwidths is developed. The framework also computes the singular structure value, μ for the uncertain closed-loop system to quantify robustness, both in terms of stability and performance. The multi-tracking control problem targets engine speed, differential pressure across throttle as well as air-to-fuel ratio to achieve satisfactory engine performance while also preventing compressor surge and reducing engine emissions. A controller switching methodology using slow-fast controller decomposition and hysteresis at switching points is proposed to smoothly switch control authority between several MIMO controllers. The control design approach is applied to a truth-reference GT-Power engine model to evaluate the closed-loop controller performance. The engine response obtained using the robust MIMO controller is compared with that obtained using a state-of-the-art benchmark controller to evaluate the additional benefits of the MIMO controller.</div><div><br></div><div><div>In the second study, a robust 2-degree of freedom controller that commands eBooster speed to control air-to-fuel ratio, and a robust MIMO coordinated controller to control gas</div><div>exchange process in a diesel engine with electrified air handling architecture are developed. The MIMO controller simultaneously controls engine speed, mass fraction of the recirculated exhaust gas as well as air-to-fuel ratio. The actuators available for control in the engine include the exhaust gas recirculation valve, exhaust throttle valve, fuel injection rate, eBooster speed, eBooster bypass valve. To design the robust eBooster controller, the input-output relationship between eBooster speed and air-to-fuel ratio is estimated using system identification techniques. The robust MIMO controller is synthesized using a physics-based mean value control-oriented engine model that accurately represents the high-fidelity GT-Power model. In the first control strategy, the robust eBooster controller is added to an already existing stock engine control unit while in the second control strategy, the stock engine control unit is replaced with the multiple-input multiple-output controller. The two control architectures are tested under different operating conditions to evaluate the controller performance. Simulation results with the control architectures developed in the thesis are compared to a baseline engine configuration, where the engine operates without eBooster. Although it is observed that both these control algorithms significantly improve engine performance as compared to the baseline configuration, MIMO controller provides the best engine performance overall.</div></div>