How do electric vehicles work?

How does an Electric Car Work - CO2 emission free Malta

From outside most electric cars

look exactly like fossil fuel-powered cars. An electric car lacks a tailpipe and gas tank, but the overall structure is basically the same. Under the bonnet, instead of a huge engine all you will see is an electric motor and its controller. The electric motor needs no oil, no tune-ups, and since there is no tailpipe emissions, it does not necessitate any smog checks. 

The electric vehicle power source is the battery which acts as a "gas tank" and supplies the electric motor with the energy necessary to move the vehicle.  This gives the car acceleration.  When the vehicle is idle there is no electrical current being processed, so energy is not being used up. The controller acts as a regulator, and controls the amount of power received from the batteries so the motor does not burn out. This battery powers all of the electronic devices in the car, just like the battery in a gas-powered car. Everything else in the electric car is basically the same as its gas-powered equivalent: transmission, brakes, air conditioning, and airbags. Since electric vehicles use an electric motor, the driver can take advantage of the motor's momentum when pressure is applied on the brakes.  Instead of converting all the potential energy in the motor into heat like a fossil fuel-powered car does, an electric car uses the forward momentum of the motor to recharge the battery. This process is called regenerative braking.

What are the advantages of having an electric vehicle?

There are many environmental benefits and personal benefits for having an electric car:

  • Most electric motors can travel up to 150 – 180 km before they need to be charged
  • No tail pipe exhaust means no greenhouse gases such as CO2, NOx and PM10s
  • No oil consumption means less reliance on fuel
  • Cars can be recharged whenever is convenient to the user
  • More cost-effective than regular cars because of long-lasting battery use
  • Cheaper to maintain because they have fewer moving parts
  • Creates less noise pollution because the engine is silent

The above advantages however, will be part and parcel of DemoEV’s analysis, when comparing electric vehicles to internal combustion engine.

Differences between internal combustion engines, hybrids and electric vehicles (Evs):

To know more, the following websites do give a good idea on the differences between internal combustion engines and electric vehicles:

Should you come across any interesting website about EVs, share it with us!  

Keep checking this website out, to know more about the outcomes of DemoEV.

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