Sökning: "electric"

Visar resultat 16 - 20 av 1612 avhandlingar innehållade ordet electric.

1. 16. Effective System Solutions for Battery Electric Trucks

   Författare :Johannes Karlsson; Chalmers tekniska högskola; []
   Nyckelord :TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; long-haul truck; cost-efficient; agent-based model; charger utilisation; charge-point operator; battery electric vehicle; payload capacity; battery electric trucks; charging strategy; battery sizing; charging station;

   Sammanfattning : .... LÄS MER

3. 17. Radical Innovation: Management and policy for electric and hybrid electric vehicle development

   Författare :Hans M Pohl; Chalmers tekniska högskola; []
   Nyckelord :TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; first-mover; hybrid; policy; electric vehicle; interparadigmatic; innovation; evolutionary; radical; Paradigm; automotive;

   Sammanfattning : Technological change can be divided into two categories: in line with the mainstream trajectory or paradigm (continuous, incremental), or breaking with it (discontinuous, radical). This thesis aims to increase understanding of the latter type: paradigmatic shifts in technology. LÄS MER

4. 18. Battery Health Estimation in Electric Vehicles

   Författare :Verena Klass; Göran Lindbergh; Mårten Behm; Anna Stefanopoulou; KTH; []
   Nyckelord :TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; Lithium-ion battery; state-of-health; electric vehicle; support vector machine; resistance; capacity; Chemical Engineering; Kemiteknik;

   Sammanfattning : For the broad commercial success of electric vehicles (EVs), it is essential to deeply understand how batteries behave in this challenging application. This thesis has therefore been focused on studying automotive lithium-ion batteries in respect of their performance under EV operation. LÄS MER

5. 19. Electric interactions: A study of cellulose

   Författare :Björn Stenqvist; Beräkningskemi; []
   Nyckelord :Electric interactions; Quantum mechanics; Statistical mechanics; Simulations; Cellulose; Electric interactions; Quantum mechanics; Statistical mechanics; Simulations; Cellulose;

   Sammanfattning : This work is primary about development and application of electrostatic theory within the atomistic domain. The resulting procedures were implemented to eventually describe systems involving the cellulose molecule. A concluding remark about electrostatic interactions is the importance of moment cancellation. LÄS MER

7. 20. Control of permanent-magnet synchronous machines in automotive applications

   Författare :Oskar Wallmark; Chalmers tekniska högskola; []
   Nyckelord :TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; Electric drive; electric vehicle; fault tolerance; hybrid electric vehicle; inverter; in-wheel motor; loss minimization; permanent-magnet synchronous machine; phase-locked loop; position estimation; sensorless control; vector control;

   Sammanfattning : This thesis deals with the design and analysis of control system structures for electric drives equipped with permanent-magnet synchronous machines (PMSMs) in automotive applications. Sensorless control, meaning vector control without a mechanical rotor position sensor, is considered and a speed and position estimator of phase-locked loop type is analyzed thoroughly. LÄS MER