On the choice of the main dimensions of electric cars.
Abstract
It is usually assumed that an electric machine has two main sizes - diameter and length. When designing, only one equation of the so-called machine constant is given for their definition, and then given by an arbitrary ratio of length to diameter. The author believes that the electric machine has not two, but three main sizes - diameter, length and air gap, for the definition of which three equations are given in the article - two of them are obie for all machines, and the third varies depending on the type of machines (MPT, TG, GG, AM). Bibliographic references 9.