Choice of the Traction Motor for the Electric Racing Car “Formula Student”

The choice of an electric racing car traction motor is one the main tasks while designing the electric racing car because it is the motor that specifies dynamic and high-speed characteristics. Besides, the electric drive must be within the regulations of the competition. When comparing some electromechanical characteristics of electric motors used in the electric racing car, it is necessary to prefer electric drives with more hardening characteristic, despite the fact that it will result in the increase of expenses for copper as well as upgrade technical requirements for the choice of storage batteries, but the “hardening”| characteristic will provide the model with the required dynamics. The most widely-spread motors with the “hardening” characteristic is a direct current motor with a separate excitation. However, this motor has some disadvantages related to its specific structure. The analysis of different versions of electric drives has shown the prospects of the use of synchronous motors on constant magnets.