Results 21 to 30 of about 21,305 (311)

Energy Flow and Electric Drive Mode Efficiency Evaluation of Different Generations of Hybrid Vehicles under Diversified Urban Traffic Conditions

open access: yesEnergies, 2023
Hybrid propulsion dedicated to light duty vehicles is seen as an evolutionary change from internal combustion engine (ICE) to electric propulsion. Widespread direct replacement of convection ICEs in the current energy system is impossible because ICEs ...
Ireneusz Pielecha   +2 more
doaj   +1 more source

Predictive Energy Management for Hybrid Electric Aircraft Propulsion Systems

open access: yesIEEE Transactions on Control Systems Technology, 2023
We present a Model Predictive Control (MPC) algorithm for energy management in aircraft with hybrid electric propulsion systems consisting of gas turbine and electric motor components. Series and parallel configurations are considered. By combining a point-mass aircraft dynamical model with models of electrical losses and losses in the gas turbine, the
Martin Doff-Sotta   +2 more
openaire   +3 more sources

Mission Performance Analysis of Hybrid-Electric Regional Aircraft

open access: yesAerospace, 2023
This article discusses the mission performance of regional aircraft with hybrid-electric propulsion. The performance analyses are provided by mission simulations tools specifically developed for hybrid-electric aircraft flight dynamics.
Giuseppe Palaia, Karim Abu Salem
doaj   +1 more source

Overview of Propulsion Systems for Unmanned Aerial Vehicles

open access: yesEnergies, 2022
Unmanned Aerial Vehicle (UAV) propulsion technology is significantly related to the flight performance of UAVs, which has become one of the most important development directions of aviation.
Bowen Zhang   +3 more
doaj   +1 more source

Analysis Leading to the Design of a Hybrid Gas-Electric Multi-Engine Testbed

open access: yesAerospace, 2023
Given the increase in air traffic, the main challenges in aircraft design are in-flight emissions and noise heard by the community. These problems have thus far been solved by incremental improvements in aerodynamics, engine technology and operation.
Agata Kuśmierek   +3 more
doaj   +1 more source

A Multiphase Traction/Fast-Battery-Charger Drive for Electric or Plug-in Hybrid Vehicles [PDF]

open access: yes, 2010
For Electric Vehicles (EV), the charger is one of the main technical and economical weaknesses. This paper focuses on an original electric drive [1]-[3] dedicated to the vehicle traction and configurable as a battery charger without need of additional ...
BOUCHEZ, Boris   +11 more
core   +1 more source

Design Tradeoffs in Full Electric, Hybrid and Full Chemical Propulsion Communication Satellite

open access: yesSakarya University Journal of Computer and Information Sciences, 2019
Full electric propulsion system becomes popular recently and getting more common in the communication satellite industry. Full electric or hybrid propulsion selection causes results in significant reduction in satellite propellant mass. Conventional full
Ü.cezmi Yılmaz, İbrahim Oz
doaj   +1 more source

Artificial three-body equilibria for hybrid low-thrust propulsion [PDF]

open access: yes, 2008
This paper proposes a new concept of creating artificial equilibrium points in the circular restricted three body problem, where the third body uses a hybrid of solar sail and solar electric propulsion.
Baig, Shahid, McInnes, Colin R.
core   +1 more source

Displaced geostationary orbit design using hybrid sail propulsion [PDF]

open access: yes, 2011
Due to an increase in number of geostationary spacecraft and limits imposed by east-west spacing requirements, the geostationary orbit is becoming congested.
Biggs, James   +9 more
core   +1 more source

Medium-Range Aircraft Conceptual Design from a Local Air Quality and Climate Change Viewpoint

open access: yesEnergies, 2023
This paper presents an overall performance assessment of hybrid-electric medium-range transport aircraft, with the aim to evaluate the potential of such a propulsion technology towards the reduction in the environmental impact of aviation transport, in ...
Karim Abu Salem   +3 more
doaj   +1 more source

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