| Abstract |
A permanent magnet synchronous motor for electric vehicle drives is presented, which utilizes series-production components of a servo-motor concept to keep manufacturing costs low. A field-weakening range of at least 1:4 is possible with respect to the mechanical and electromagneticallimits of rotors with surface-mounted magnets. Calculation methods for motor magnetic circuit design and comparison with measured data of a prototype drive are discussed in detail.
Comments on drive protection due to the permanent excitation, yielding a high induced voltage at high speed, are given.
The motor meets the specifications of the ,Small Drive Size" of the Project EUROPED (European Propulsion Electric Drive), which are issued by ACEA(Association des Constructeurs Europeen de Automobile). |
