Sökning: "Electric Powertrain"
Visar resultat 1 - 5 av 43 avhandlingar innehållade orden Electric Powertrain.
1. Novel powertrain topologies for energy-efficient battery electric vehicles
Sammanfattning : The global transition towards sustainable transportation has underscored the importance of battery electric vehicles (BEVs), with a growing need for enhancement in powertrain energy efficiency to mitigate range anxiety and promote widespread adoption. In response to this need, there have been significant contributions from advancements on powertrain components, such as electric motors and inverters, towards increased energy efficiency. LÄS MER
2. Gear engagement control for transmissions in hybrid electric vehicles
Sammanfattning : Hybrid and electric vehicles have become very important for vehicle manufacturers due to stricter legislation, government incentives and customers’ growing awareness of the environmental issues. For conventional vehicles, Dual clutch transmissions (DCT) have better shift quality and efficiency than conventional automatic transmissions. LÄS MER
3. Optimal Powertrain Dimensioning and Potential Assessment of Hybrid Electric Vehicles
Sammanfattning : Hybrid electric vehicles (HEVs), compared to conventional vehicles, complement the traditional combustion engine with one, or several electric motors and an energy buffer, typically a battery and/or an ultracapacitor. This gives the vehicle an additional degree of freedom that allows for a more efficient operation, by e.g. LÄS MER
4. Predictive Control of Hybrid Electric Vehicles on Prescribed Routes
Sammanfattning : 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. LÄS MER
5. On power loss minimisation for heavy vehicles with axle-wise and modular electrical propulsion and friction braking
Sammanfattning : The main challenges for battery electric heavy vehicles are improving the payload capacity and driving range for different applications. These are mainly influenced because of battery power density, different vehicle configurations, and powertrain design. LÄS MER