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Working of electric motor and its advantages

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Last Updated on March 10, 2024 by Haris Khan

The inverter transfers the electrical energy stored in the battery to the electric motor. When releasing the accelerator or 

The electric motor uses the energy stored in the battery, transforming it into the mechanical energy needed to move the car.braking, the car’s electric motor acts as a generator and recharges the battery. Electric motor sales provide all types of machine parts. 

Electric motors are overall more energy efficient than almost all internal combustion engines. The petrol engine has an energy efficiency of around 27-30%. A diesel engine is close to 40%. Depending on the electric motor balancing and its power, an electric motor can also be close to between 85 (induction) and 95% (brushless).

The inverter is the component that converts the direct voltage into alternating current and modulates the latter to vary the torque and power of the motor. DC energy from the battery enters this device and exits as three-phase AC power fed into the motor. Regenerative braking is also managed by this element, which must be able to interpret the deceleration desired by the driver and link it with that of the classic friction brakes. The inverter is, therefore, a high-performance and sensitive component simultaneously: it manages powers of hundreds of kW, finely modulating them according to the driver’s wishes. You can choose an electric motor for sale in your area.

A fundamental element of an electric motors for cars is the batteries. This component is, to date, the worry of the various manufacturers, given that the penalizing element of electric cars is autonomy. For models equipped with lithium batteries, the manufacturers declare an autonomy that varies on average from 150 to 550 km, but this can also vary according to the driving style adopted by the driver and the routes: in the city, it will be maximum, on the highway, it will drop dramatically.

Types of electric motor

Electric motors are divided between direct current (DC) motors and alternating current (AC) motors. However, this is not an extremely precise classification since there are also so-called hybrid motors, which are constructively similar to DC motors but can also be powered by AC. 

Different distinctions can be made based on other characteristics: the rotation speed of the axis is always lower than the rotation speed of the rotating field, which depends on the frequency of the supply voltage. Therefore, the classifications in which electric motors can be divided are asynchronous motor, synchronous motor, direct current motor, alternating current motor, single-phase motor, three-phase motor and stepper motor.

There are also brushless motors (literally “brushless”) is a direct current electric motor with a permanent magnet rotor and a rotating magnetic field stator. The commutation of the current circulating in the stator windings, and therefore the variation of the orientation of the magnetic field generated, takes place electronically. 

Electric motor: what are the advantages?

It took several years to understand their potential, but today electric cars are starting to find more and more space in the interests of many motorists. Among the numerous advantages of the electric motor, they mention:

  • high torque and starting power and, in any case, more significant than a heat engine of the same size/weight;
  • very quiet ;
  • Low vibrations.

On the road, the electric car proceeds in a fluid, fast and silent way and can enjoy instant torque that allows for immediate thrust compared to a car equipped with a traditional engine, only to then have less “breath” at high speeds since the electric torque is present all at once and then decreases as the engine speeds increase.

Nowadays, the methods of charging an electric car are flexible, fast and suitable for different daily situations. Three recharging ways are usually possible:

The ordinary maintenance of an EV is almost nil: what must always be kept under eye are ‘only’ the condition of the tyres, the lights, the brakes, the windscreen wipers and the electronic and ADAS compartments, which, being often sophisticated, it requires targeted and programmed attention. All this leads to significant savings from the outset, which is enhanced by the lower cost of the “full” of petrol, which the electric car does not need to move. Electric motors sales denver deal with parts of machinery at a large scale.

Lastly, the “indirect” advantages deriving from electric motors are essential tax relief, access to historic centres and some free city parking.

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