Engine (SRM) is a mode function of the car . and the car mode, the latter of which is the same as mode function is that it (SRG) say.

the basis of the creation of this engine to the year 1842 ad pitted (when Scottish inventor named Robert Davidson from the engine as the main stimulus locomotive used), but the initiative of RE-it because of the benefits of expensive not-being and progress implements with high power (electronics power), etc. became possible and, from 1969 (est. engine variable in order to applications, variable speed was proposed.

although this engine is identical because the speed of rotor field rotating typical synchronous motor, but has new features certain can be that it of the synchronous motor, typical distinct. Also this motor to the stepping motor, also very much resembles, but its function is different. This motor has a winding, the field, the same DC motor for winding, the stator is on the rotor, its winding or magnet. (stator) and (rotor), the both have poles highlights. hence, from this car as the car bumps, Double be remembered.

When a pair of Poles of the stator, which is opposite the? triggering? of the rotor with the pole, coax. In a magnetic circuit at the moment of incitement. piece rotating (here the order of the rotor machine, switch .) give preference to the situation come that the lowest magnetic. When the two poles of the rotor coaxial with the two poles of the stator. set the other poles of the rotor relative to the poles of the other stator coax are not. Then to make each one of these sets, the pole, the stator coaxial with the poles of the rotor. respectively are aroused. With this arrangement, incessant stream into the winding, the stator cause the rotor to be permanently rotated.

the most important disadvantages of this type of motors having ripple torque and High create acoustic noise (acoustic) too much. that with the different methods of control, correction and optimization of the engine design it can be improved the alliance.