Increasing the Mileage of an Electric Vehicle without Changing the Capacity of the Battery

It is shown that controlling a single-pole synchronous motor with permanent magnets at a minimum of current increases the efficiency of using the power supplied to the motor windings and the processes of electromechanical conversion of energy stored in the battery. When limiting the current and voltage modulus, due to more efficient energy conversion, the engine speed increases by 11.4%, the electromagnetic torque by 7.5%, and the power spent on moving the machine by 20%, which allows increasing the mileage of an electric vehicle without changing the battery capacity compared to the option when the engine is controlled by current along the transverse axis. A control linearization method is proposed that allows precise maintenance of minimum heat loss conditions in static and dynamic modes, ensuring high efficiency of conversion of electrical energy stored in the battery. A 50% change in the active resistance of the stator when the engine is heated does not have a noticeable effect on the dynamics of transients and on the exact fulfillment of the conditions for minimizing heat losses.