Search for dissertations about: "electric machines"
Showing result 16 - 20 of 76 swedish dissertations containing the words electric machines.
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16. On design and analysis of synchronous permanent magnet machines for field-weakening operation in hybrid electric vehicles
Abstract : A regular vehicle of today is equipped with an internal combustion engine that runs on either gasoline or diesel, which are fossil fuels from oil reserves that are millions of years old. In all types of combustion processes carbon dioxide and several other emissions are produced. READ MORE
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17. Synchronous Machines with High-Frequency Brushless Excitation for Vehicle Applications
Abstract : Electrically excited synchronous machines (EESM) are becoming an alternative to permanent magnet synchronous machines (PMSM) in electric vehicle (EV) applications. This mainly attributes to the zero usage of rare-earth material as well as the capabilities of high starting torque and good field weakening provided by EESM. READ MORE
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18. Predictive Control of Hybrid Electric Vehicles on Prescribed Routes
Abstract : At the highest level in the powertrain control system in a hybrid electric vehicle an energy management controller interprets the driver’s pedal actions as a torque that is to be delivered at the powertrain output. The energy management controller distributes this torque between the engine and the electric machines and decides when to change gear and when to turn off the engine for pure electric propulsion. READ MORE
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19. Design, Modelling and Verification of Distributed Electric Drivetrain
Abstract : The electric drivetrain in a battery electric vehicle (BEVs) consists of an electric machine, an inverter, and a transmission. The drivetrain topology of available BEVs, e.g., Nissan Leaf, is centralized with a single electric drivetrain used to propel the vehicle. READ MORE
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20. Electric machine control for energy efficient electric drive systems
Abstract : Pure electric vehicles and hybrid electric vehicles are of increasing interest in the automotive industry, much due to challenges such as emission level legislations and the environmental impact of the transportation sector. When continuously striving for better performing and more energy efficient electric powertrains, with high drivability and redundancy, there is an ever increasing need for further research and development in the areas of controls, design and system level optimization. READ MORE