Results 211 to 220 of about 4,548 (263)
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Propulsion systems for electric cars
IEEE Transactions on Vehicular Technology, 1974Proper selection of the propulsion system to meet the requirements of an electric passenger vehicle is of prime importance. Choice may be made among alternating current, direct current, or combined systems. Each approach can be implemented by utilizing various control techniques and power elements.
B. Berman, G.H. Gelb
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2016
Taking into account traffic flow, the greenhouse effect, pollutant emission, and noise emission, it seems that electric mobility is the best alternative for transport in urban areas. Nevertheless, as shown in Chap. 1, these unique characteristics are prejudiced by severe disadvantages regarding the sources of electric energy (Fig.
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Taking into account traffic flow, the greenhouse effect, pollutant emission, and noise emission, it seems that electric mobility is the best alternative for transport in urban areas. Nevertheless, as shown in Chap. 1, these unique characteristics are prejudiced by severe disadvantages regarding the sources of electric energy (Fig.
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2003
As we have seen in previous chapters, chemical propulsion systems are limited in performance by the energy stored in their propellants. This limitation can be overcome by using electric power available on the spacecraft (e.g., from solar arrays, nuclear reactors or beamed energy sources such as laser light or microwave energy transmitted to the ...
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As we have seen in previous chapters, chemical propulsion systems are limited in performance by the energy stored in their propellants. This limitation can be overcome by using electric power available on the spacecraft (e.g., from solar arrays, nuclear reactors or beamed energy sources such as laser light or microwave energy transmitted to the ...
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Electric and Hybrid-Electric Propulsion Systems
2013While in conventional ICE-based vehicles the energy carrier is a fossil fuel, electric and hybrid-electric propulsion systems are characterized by the presence of an electrochemical or electrostatic energy storage system. Moreover, at least one electric motor is responsible — totally or partially — for the vehicle propulsion.
Lino Guzzella, Antonio Sciarretta
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Electric propulsion system reliability
6th Electric Propulsion and Plasmadynamics Conference, 1967Graphic optimization technique for mass reduction in solar powered ion propulsion system with acceptable reliability ...
J. MOLITOR, K. RUSSELL
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Electric space propulsion systems
Space Science Reviews, 1967Active development of electric thrustors began 10 years ago. Today, several kinds of thrustors have achieved efficiencies above 90 % and lifetimes of several thousand hours. The following article derives the basic theory of electric thrust production at constant exhaust velocity, and at variable exhaust velocity programmed for optimum vehicle ...
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Propulsion system design of electric and hybrid vehicles
IEEE Transactions on Industrial Electronics, 1997There is a growing interest in electric and hybrid-electric vehicles due to environmental concerns. Efforts are directed toward developing an improved propulsion system for electric and hybrid-electric vehicles applications. This paper is aimed at developing the system design philosophies of electric and hybrid vehicle propulsion systems. The vehicles'
Mehrdad Ehsani +2 more
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Thrust system technology for solar electric propulsion.
Journal of Spacecraft and Rockets, 1968Solar electric thrust system technology concerning performance, thruster control system stability and method for ...
T. MASEK, E. PAWLIK
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Fault diagnosis for the ship electric propulsion system
2015 11th International Conference on Natural Computation (ICNC), 2015According to the actual condition of the ship electric propulsion system, the fault tree was built via analyzing the fault characteristics and reasons of the components of the system. The analytic hierarchy process was used to calculate the weight of the fault reasons and formed a corresponding intelligent fault tree.
Bing Li +3 more
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Current Propagation in Electric Railway Propulsion Systems
Transactions of the American Institute of Electrical Engineers, 1932TRACKS of electric railways, being continuously in contact with the earth, allow current to leak into the earth, the track current thus varying continuously at various points along the length of the track, unlike the currents in other conductors of the propulsion system.
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