Title :
Novel Electrical Continuously Variable Transmission System and its Numerical Model
Author :
Yulong Liu ; Ho, S.L. ; Fu, W.N.
Author_Institution :
Dept. of Electr. Eng., Hong Kong Polytech. Univ., Hong Kong, China
Abstract :
A novel electrical continuously variable transmission (E-CVT) system for hybrid electric vehicles is presented. The merits of the system, which is comprised of a magnetic gear (MG) integrated permanent magnet brushless machine, are its compactness, light weight, very high torque density, and simple structure. The integrated MG is ingeniously used to greatly amplify its output torque. It serves the functions of both power splitting and coupling. The drawbacks of mechanical gears or brushes in traditional systems are overcome. A design method based on finite element method for maximizing the torque output of the machine is presented and the performance of the machine in the E-CVT system is validated.
Keywords :
brushes; brushless machines; design engineering; finite element analysis; hybrid electric vehicles; permanent magnet machines; power transmission (mechanical); torque; variable speed gear; E-CVT system; design method; finite element method; hybrid electric vehicles; magnetic gear integrated permanent magnet brushless machine; mechanical gears; novel electrical continuously variable transmission system; numerical model; power coupling; power splitting; torque density; torque output maximization; Gears; Hybrid electric vehicles; Ice; Mechanical power transmission; Rotors; Torque; Windings; Electric machine; electrical continuously variable transmission (E-CVT); finite element method (FEM); magnetic field;
Journal_Title :
Magnetics, IEEE Transactions on
DOI :
10.1109/TMAG.2013.2286211
