Human: What are the differences between types of motors used in electric vehicles? Assistant: 
The main types of motors used in electric vehicles are: brushed DC motors, brushless DC motors, synchronous AC motors, induction AC motors, and permanent magnet motors. Brushed DC motors have simpler mechanics and use brushes and a commutator for the rotor current. Brushless DC motors have more complex mechanics and use electronic control for the rotor current. Synchronous AC motors work like a generator, converting energy back and forth between mechanical and electric energy. Induction AC motors require less maintenance, but they can be less efficient than other types of motors. Permanent magnet motors use magnets to create a rotating magnetic field and are well-suited to high-torque applications.