Search for dissertations about: "Jonas Fredriksson"

Showing result 1 - 5 of 12 swedish dissertations containing the words Jonas Fredriksson.

2. 1. Optimal Speed and Powertrain Control of a Heavy-Duty Vehicle in Urban Driving

   Author : Manne Held; Jonas Mårtensson; Jonas Fredriksson; KTH; []
   Keywords : TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; Autonomous vehicles; model predictive control; optimal control; heavy-duty vehicles; trucks; powertrain control; fuel; Electrical Engineering; Elektro- och systemteknik;

   Abstract : A major challenge in the transportation industry is how to reduce the emissions of greenhouse gases. One way of achieving this in vehicles is to drive more fuel-efficiently. READ MORE

4. 2. Algorithms for analysis of NMR projections: Design, implementation and applications

   Author : Jonas Fredriksson; Göteborgs universitet; []
   Keywords : NATURVETENSKAP; NATURAL SCIENCES; NMR; projection experiments; decomposition; algorithm; automatic;

   Abstract : With an increasing rate of protein expressions the need for fast protein characterization has become more important. Protein NMR has long been an important contributor for protein characterization; being one of a few techniques that can study proteins at atomic resolution in their native state. READ MORE

5. 3. Nonlinear control of turbocharged diesel engines : an integrated powertrain control perspective

   Author : Jonas Fredriksson; Chalmers tekniska högskola; []
   Keywords : TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; nonlinear control; backstepping; diesel engine modeling; engine control; stability; powertrain control; powertrain modeling;

   Abstract : .... READ MORE

6. 4. Nonlinear Model-based Control of Automotive Powertrains

   Author : Jonas Fredriksson; Chalmers tekniska högskola; []
   Keywords : TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; stability; diesel engine control; nonlinear control; gearshifting; air-to-fuel ratio control; drive- line oscillations; backstepping; powertrain modeling; powertrain control;

   Abstract : In recent years the focus of powertrain control has shifted perspective from control of the individual powertrain components to control of the complete powertrain, so-called integrated powertrain control. The idea presented in this thesis is to view the powertrain as one single control object and to used the engine as a torque actuator to the rest of the driveline. READ MORE

7. 5. On the Experimental Determination of Damping of Metals and Calculation of Thermal Stresses in Solidifying Shells

   Author : Jonas Åberg; Hasse Fredriksson; Björn Widell; Michael Vynnycky; Toshihiko Emi; KTH; []
   Keywords : TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; material damping; measurement methods; calorimetric methods; optical strain gauge measurements; hot cracking; stress in solid shells; ALE; Materials science; Teknisk materialvetenskap;

   Abstract : This thesis explores experimentally and theoretically two different aspects of the properties and behaviour of metals: their ability to damp noise and their susceptibility to crack when solidifying. The first part concerns intrinsic material damping, and is motivated by increased demands from society for reductions in noise emissions. READ MORE