Learn Electric Car Motor

There are two common types of electric car motors DC (direct current) motors and AC (alter current). The DC motor has wide field of using. You can find it in any automobile like starter motor, electric drive for windshield wiper, heater fun etc. Stator works in role of inductor, it consists of two-layer winding. When DC flows through winding constant magnetic field is created. The DC flows also through winding conductor of rotor. Consequently the Ampere force acts on rotor and it begins to rotate. But rotator cat rotate only on 180 degree. But there is brush assembly. It provides full rotation using DC-ac converter and rotor position transducer. AC motors are powered by alter current. There is synchronism between a magnetic field and moving current sheet, in this way torque is produced. So AC motors divided on asynchronous motors and synchronous types. If rotor rotates synchronously with magnetic field that produced by supplied current we deal with synchronous type. In other case if rotation frequency of rotor is different from frequency rotated magnetic field we deal with asynchronous type. AC Synchronous motors are much expensive but have a long life term. They are often used like industrial motors. In induction motors (also called asynchronous motor) power is induced in rotating device, when in DC motor power is supplied directly to armature. The main difference between synchronous and induction motor is the current that supplied onto the rotor. This current creates magnetic field and rotor can rotate with same speed as rotating magnetic field in the stator. Opposite this concept for induction motor a secondary current is induced in the rotor. And this current interacts with magnetic field and it causes to rotation. Electric car manufacturers often use AC induction motors, they can produce more power then DC motors, and don’t have brushes, so they are more reliable. But they are much more complicated for installation during electric vehicle conversion.