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Field Weakening Control of a PM Electric Variable Transmission for HEV
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 Title & Authors
Field Weakening Control of a PM Electric Variable Transmission for HEV
Cheng, Yuan; Bouscayrol, Alain; Trigui, Rochdi; Espanet, Christophe; Cui, Shumei;
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This paper presents the control of a Permanent Magnet Electric Variable Transmission (PM-EVT) for Hybrid Electric Vehicles (HEVs). Consisting of two electric machines, the EVT realizes the power split function in an electromagnetic way rather than in a mechanical way. A specific PM-EVT has been designed for Toyota Prius II. The control scheme of the entire vehicle is deduced using the Energetic Macroscopic Representation methodology. The energy management strategy yields local control references. A specific attention is paid for the field weakening for wide speed range. Simulation results are provided to illustrate the EVT modeling and control.
EV and HEV;Electric variable transmission;Synchronous machine;Field weakening;
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