The aim of this chapter is to present a new type of powertrain with reduced overall dimensions and low weight, reduced carbon emissions, a simple and inexpensive static converter and a special transmission system. The transmission system uses an electric differential to control the two rotors so that they can operate as motor/generator, at the same rotational direction or in opposite directions, at the same speed value, at slightly different speeds or at much different speeds by using an original dual vector control operating on dual frequency. The advantages of this system address all major concerns of hybrid and electric vehicle manufacturers. Expected results: a powertrain 20% lighter and an increase of 5% of electric drive efficiency, low rotor inertia at high speed, a compact electric drive system with high torque and simple control, an intelligent energy management system with a new vision of technological and innovation development, and improved environment protection. The electrical machines for hybrid (HEV) or electric (EV) drives include a variety of different topologies. According to the outcome of the literature survey, the induction machines alongside with synchronous machines take the major place in HEV or EV powertrains.

Lightweight high efficiency power train propulsion with axial flux machines for electric or hybrid vehicles

Fabrizio, Marignetti;
2018

Abstract

The aim of this chapter is to present a new type of powertrain with reduced overall dimensions and low weight, reduced carbon emissions, a simple and inexpensive static converter and a special transmission system. The transmission system uses an electric differential to control the two rotors so that they can operate as motor/generator, at the same rotational direction or in opposite directions, at the same speed value, at slightly different speeds or at much different speeds by using an original dual vector control operating on dual frequency. The advantages of this system address all major concerns of hybrid and electric vehicle manufacturers. Expected results: a powertrain 20% lighter and an increase of 5% of electric drive efficiency, low rotor inertia at high speed, a compact electric drive system with high torque and simple control, an intelligent energy management system with a new vision of technological and innovation development, and improved environment protection. The electrical machines for hybrid (HEV) or electric (EV) drives include a variety of different topologies. According to the outcome of the literature survey, the induction machines alongside with synchronous machines take the major place in HEV or EV powertrains.
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Utilizza questo identificativo per citare o creare un link a questo documento: http://hdl.handle.net/11580/69968
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