Maglev train  has three major components: suspension system, propulsion system and guidance system. Although it can use the propulsion which has nothing to do with magnetic, in the vast majority of the design, these three-part features are completed by magnetic.

Electro Magnetic System (EMS):
It is a kind of suction suspension system, is combined with in the engine and electromagnets guide rail track ferromagnetic attract each other produce suspension. Because maglev and guide have nothing to do with the speed of the train, it still into a state of suspension even in parking state.

Electrodynamic Suspension (EDS):
Electrodynamic suspension (EDS) is a form of magnetic levitation in which there are conductors which are exposed to time-varying magnetic fields. This induces currents in the conductors that creates a repulsive magnetic field which holds the two objects apart.

These time varying magnetic fields can be caused by relative motion between two objects. In many cases, one magnetic field is a permanent field, such as a permanent magnet or a superconducting magnet, and the other magnetic field is induced from the changes of the field that occur as the magnet moves relative to a conductor in the other object.

Electrodynamic suspension can also occur when an electromagnet driven by an AC electrical source produces the changing magnetic field, in some cases, a linear induction motor generates the field.

EDS is used for maglev trains, such as the Japanese JR-Maglev. It is also used for some classes of magnetically levitated bearings.

Propulsion System
a first means for producing a direct current in each of at least two conductors, said conductors each having a length and a volume (v), the current density in each of said conductors representable by a direction vector (J);
a plurality of second means for producing magnetic flux densities, said magnetic flux densities being representable by direction vectors (B); and,
a maglev vehicle positioned by a guideway, said maglev vehicle attached to said first means or second means, wherein said first and said second means are not in physical contact, but are oriented so that said current densities and said magnetic flux densities will interact to produce linear forces representable by direction vectors (f) such that f=(J.times.B)v, so as to induce linear propulsion of said maglev vehicle with respect to said guideway in the direction of said vectors (f), and wherein said first means for producing direct current includes means on said maglev vehicle and means on said guideway interacting to provide a signal to a computer programmed to control the speed of said maglev vehicle by controlling the average value of said direct current in each of said at least two currents.