EV powertrain thesaurus: Few moving capabilities, nonetheless no longer straightforward

Although the electric motor has completely a few moving capabilities, it’s no longer a straightforward machine. Since the rotor spins at excessive speeds, the internal windings and other substances needs to be stable. The temperature furthermore must be managed. If the motor will get too hot, the magnets will lose their power. That is a peep internal the motor and or no longer it’s controller, the inverter.

AC, or alternating most modern

Generated by energy stations, the battery float of electrical energy switches constantly, 60 times per 2nd — in a restful, continuous wave

Air gap

Distance between the rotor and the stator


ArmatureThe part in the electric motor whereby the most modern passes to generate torque

Brushed motor

A form of motor that uses carbon brushes pressed against the rotor to lumber electrical energy. This kind of motor does no longer pressure a car, nonetheless is broken-down elsewhere on vehicles, much like in energy mirrors, seats and sunroofs.

Brushless motor

A motor that has a rotor made of magnets, no longer coil windings


Gentle in DC brushed motors and located at one stop of the rotor, it reverses the polarity of the magnets, which, as a result of repulsion and enchantment created by the magnetic fields, take care of the rotor spinning

DC, or sing most modern

Battery float of electrical energy in one route, between obvious and detrimental terminals

Electrical motor

Electrical motorConverts electrical energy into mechanical vitality


A form of motor that uses an alternating most modern passing thru coils in the stator to invent a magnetic discipline. The rotor, made of copper or aluminum bars with iron in between each, spins on account of the magnetic discipline induced by the most modern.


InverterMachine that converts AC, or alternating most modern, to DC, or sing most modern

Motor effectivity

The measurement of the conversion of electrical energy into mechanical vitality. Loss happens largely by electrical energy turning to warmth for the duration of the conversion job, and friction in the rotor.

Permanent magnet brushless

The rotor is the permanent magnet, and it rotates when the route of the most modern in the coils in the stator changes. This motor does no longer employ a commutator.

Permanent magnet synchronous motor

A detailed relative of the brushless motor, it uses AC most modern and has magnets in both the rotor and stator. The rotor turns at the fee of the frequency of the most modern.


ResolverLocated on one stop of the motor, it measures the distance, bustle and route of rotation of the rotor


The shaft that rotates internal the stator and transmits energy to the gearbox. Reckoning on the kind of motor, the rotor would possibly perhaps furthermore even be made of steel plates and coils of tightly anxiety copper wire or it would possibly perhaps furthermore even be constructed of magnets. The rotor is supported at each stop by bearings, and there would possibly perhaps be an air gap between the rotor and the stator. The rotor spins as a result of motion created by magnetic enchantment and repulsion between it and the stator.


StatorContains a stack of thin steel plates, known as laminations, which would possibly perhaps well be insulated from each other and like a series of grooves whereby copper wires are routed. The insulated steel plates accept as true with slots that retain a series of magnets. The stator creates a magnetic discipline both from the permanent magnets or by most modern traveling thru its coil windings. It is continuously housed in the body of the motor. The stator generates the force that spins the rotor.


When an AC motor has three sources of energy creating sine waves which would possibly perhaps well be in numerous areas at different times

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