Search for dissertations about: "model-based control"

Showing result 36 - 40 of 266 swedish dissertations containing the words model-based control.

  2. 36. Control Strategies for Machining with Industrial Robots

    Author : Olof Sörnmo; Institutionen för reglerteknik; []
    Keywords : TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; Industrial Robots; Machining; Control;

    Abstract : This thesis presents methods for improving machining with industrial robots using control, with focus on increasing positioning accuracy and controlling feed rate. The strong process forces arising during high-speed machining operations, combined with the limited stiffness of industrial robots, have hampered the usage of industrial robots in high-end machining tasks. READ MORE

  4. 37. Model-Based Investigation of Machining Systems Characteristics : Static and Dynamic Stability Analysis

    Author : Andreas Archenti; Mihai Nicolescu; Amir Rashid; KTH; []
    Keywords : Machining systems; modelling; TECHNOLOGY; TEKNIKVETENSKAP;

    Abstract : The increasing demands for precision and efficiency in machining call for new control strategies for machining systems based on the identification of static and dynamic characteristics under operational conditions. By considering the machining system as a closed-loop system consisting of a machine tool structure and a machining process, the join system characteristics can be analyzed. READ MORE

  5. 38. Control of EGR and VGT for emission control and pumping work minimization in diesel engines

    Author : Johan Wahlström; Lars Nielsen; Lars Eriksson; Tore Hägglund; Linköpings universitet; []
    Keywords : TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; Mean value modeling; Oxygen fuel ratio; EGR-fraction; System analysis; Sign reversal; PID-control; European Transient Cycle; Automatic control; Reglerteknik;

    Abstract : Legislators steadily increase the demands on lowered emissions from heavy duty vehicles. To meet these demands it is necessary to integrate technologies like Exhaust Gas Recirculation (EGR) and Variable Geometry Turbochargers (VGT) together with advanced control systems. READ MORE

  6. 39. Enhancing Model-Based Development of Embedded Systems : Modeling, Simulation and Model-Transformation in an Auotmotive Context

    Author : Tahir Naseer Qureshi; Martin Törngren; De-Jiu Chen; Ramin Tavakoli Kolagari; KTH; []
    Keywords : TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY;

    Abstract : The increased usage of embedded computer systems in products like automobiles has not only introduced new innovations, additional safety and comfort but also increased the product and development complexity. Several model-based development (MBD) approaches have been proposed to support the management of such complexity. READ MORE

  7. 40. Using Observers for Model Based Data Collection in Distributed Tactical Operations

    Author : Mirko Thorstensson; Henrik Eriksson; Johan Jenvald; Henric Stenmark; Linköpings universitet; []
    Keywords : NATURVETENSKAP; NATURAL SCIENCES; Observers; model-based data collection; distributed tactical operations; taskforce training; communication analysis; reconstruction exploration; extended link analysis; timed checkpoints; network based observer tool; Computer science; Datavetenskap;

    Abstract : Modern information technology increases the use of computers in training systems as well as in command-and-control systems in military services and public-safety organizations. This computerization combined with new threats present a challenging complexity. READ MORE