Electric Vehicles!. Yes…Cars, buses, motorcycles, trucks, helicopters and even ships are slowly upgrading with new electronic features. As the days goes by, innovations are reaching its height as fast as the lightening! people are keen to Electronic devices which makes their lives easier. Especially, Electronic vehicles are something that is revolutionary in the field of Transportation but, soon people became familiar with these when the countries like united states, china and Europe led the electric vehicles sales in 2018. By 2019 the sales of electric cars reached 2.1 million and china remained the top of EV market with 2.3 million active electric vehicles. According to data global sales of electric cars accounted for 2.6 % and 1% for global car storage stock in 2019 registered 40% of annual increase. In 2020 alone 5% of the sales has increased which means 1.5 million people have bought electric automobiles. But, still it’s only a tiny fraction of the world’s automobiles as a whole. The charging infrastructures as an important source to the electric automobiles, the world needs to be willing to provide more systematic transitions. There is 50- 80% of chance for the electric cars to be more functional vehicle but, the problem is they are further expensive than the conventional Gasoline cars. The experts predict that within five years the cost of an electric cars may cost equal to the petrol driven vehicles. However, by 2030 these electric automobiles may become the most used transportation of the world inasmuch as many leading automobile companies deliberately working on the future of Electronic cars.
Technology which works behind these advanced automobiles!
Electronic Automobiles contains one or more electric motors which stores energy in rechargeable batteries. Since we are running out of sources for fuel our vehicles, most of the technicians and companies have moved forward to the electric car manufactures. The basic principle of electric cars is the Alternative current. All the credits have to go to Nicola Tesla who had invented the alternating current (AC) motor and developed AC generation and transmission technology.
Most of the electric cars convert the direct current electricity from the batteries in an alternating current. Basically, electric cars don’t have an internal combustion engine like gas- powered vehicles do. These electric cars do not consist big batteries in front of the car, all the electric cars use their space slightly in a different way. It only made up of 7,000 Lithium-Ion batteries which sits under the flooring. The pack of Lithium-Ion cells similar to those we use in our everyday life. These cells are connected in a combination of series and parallel to produce power requires to run your car. This has longer lifespan and higher power density which is ideal for powering on vehicle and these cars contains coolant running between them to prevent overheating.
Who controls this power structure?
The Inverter at the back is the main part that does the job of converting DC into AC altogether provides power to the engine. The induction motor is also at the place it takes the alternative current from the inverter and creates a rotating magnetic field that cause the motor to turn. Let us know what is electric current at first! Its sure that those who know physics well might know this too! an electric current is the movement of an electric charge that carries electrons. Basically, an engine can be powered by DC that means electrons flows in one direction. The electrons move from alternative current periodically and consistently change directions. This is what happens in all our electronic home appliances.
These electric cars have synchronized vehicle mechanism. The induction motor has two parts that is the stator and Rotor. The rotor is simply a collection of conducting bars short circuited by end rings. It produces a three phase AC power to stator. The three-phase alternative current in the coils produces magnetic field. This rotating magnetic field induce current on the rotor bars to make it turn. Electric cars are automatic, they do not have gearbox or lever. The single speed transmission spends power from the induction motor to wheels. The induction motor always logs behind the RMF, and it is robust and powerful. Its speed depends on the frequency of the AC power supply. The single speed transmission spends power from the induction motor to the wheels. This way the electrical motor transforms electrical energy into mechanical energy, and this turns the wheel. By varying the frequency of power supply, we will be able to alter the drive wheel speed, it makes the electric car speed control easy. Motor supply from variable frequency drives turns to control motor speed. Motor speed can Range from 0-18,000 RPM. It is advanced than internal combustion cars.
The Induction motor:
Induction motor will work efficiently in any speed range. Thus, no speed varying transmission is needed for an electric car. The power output of an internal combustion motors engine always uneven, whereas induction motors offers different rotational motion and uniform power output. So, induction motors are considered to be the superior vehicle motors.
Battery saving modes:
When you accelerate while driving, the car uses more energy, but when we break it the energy is being transformed into electricity through induction motors, it travels back to the battery pack and getting stored in favorable to use later. Power from battery pack produces DC power and before supply, it needs to be converted into AC, and inverter converts it and also controls the motor speed. The inverter acts as the brain of the electric cars. In battery pack the Glycol coolant passes through the metallic inner tubes there in the gab sells, this is particular in Tesla modes S. These are arranged as detachable modules. Glycol is coiling down by passing through the radiators at the front of the vehicle. Low high battery pack makes the car center of the gravity and improves the stability of the car.
How we charge these electric cars?
These can be charged at home which uses an outlet of 120 volts charged per hour and runs up to 2.5 miles. Electric vehicle supply equipment has a higher voltage which is 220- 240 volts to add 10-25 miles per hour of charging. Direct current charging stations are the most efficient one to add 80% of the car’s battery in less than a half an hour.
These noises free, pollution free and highly performed electric automobiles are cheaper to maintain but we cannot deny the fact that they are highly expensive to possess. More than anything the battery pack is the most expensive component.
We never know, within next 5-10 years we all might use these electric cars and it is always good to know about the things we use. They save our money also it’ll be great help to environment. These are pollution free vehicles and also reduce emission. Since it is a renewable source it is better than fueling switch gasoline. Electric cars are much safer than internal combustion cars. Most of these cars of 8 years of warranty. The world is moving forward many electric powered vehicles sooner or latter many countries would adapt the electric car transportation’s as a prime and we may be traveling in these super energetic vehicles.