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INDEPTH : What are BEVs, parts and working principle

Indepth : BEV, HEV, PHEV, MHEV, FCEV, What, why, how, electric cars innovation technology
INDEPTH - On types of power trains in Electric vehicles

 

Tesla clocked in a revenue of 24.6 billion dollars in the year 2019 with over 2.3 million total car sale globally as reported by Statista.

What is a Battery electric vehicle?

Volkswagen ID R an all electric car masterpiece and king of the Nurburgring.  image source : volkswagen-newsroom.com


Battery electric vehicle (BEV) are a class of EVs that uses only an Energy Storage System (ESS) such as a battery pack to power the electric car. There are no fuel oils involved, hence, can achieve true zero emission goals.

Why Battery electric car is dominating HEVs, FCEVs and others?


Tesla model 3 a battery electric car BEV, great innovation
Tesla Model 3 - best selling model from Tesla motors. image source :unsplash

Battery electric vehicles are the pick of electric locomotion innovation, they are the future we have been working towards, to achieve the dream of owning a car that is environment friendly (zero emissions), less noisy and delivers Ludicrous power (Tesla reference).

Countries around the world are promoting the use of electric car and offers tax reliefs and other benefits to the owners. Some countries like Norway and India have committed to adopting full electrification soon.

Parts of a BEV 

The main parts of a battery electric vehicle are as below[1] :

Components of a BEV, Motor, Battery, Inverter, Control system, innovation
Components of a battery electric vehicle.  image source : afdc.energy.gov


 

# Battery Pack - 

The power store of electric car. They are collection of hundreds of small cell batteries, usually of the (AA) type packed together; capacity may range from 100kwh to 500kwh.

# Inverter - 

This converts the DC power from the battery into AC power, and fed to the motors.

# Controller - 

This is the brain of the system it tells how much power is to to deliver to each motor(s).

# Electric Motor - 

They are usually of the permanent magnet type and rarely of induction type (like the early Tesla motors). 

Connected with either a single speed or two speed automatic gearbox and can handle few seconds of peak current to deliver you that sweet sweet (0-60) mph under 4 secs.

# Charging system for the battery

# Re-gen system -  

Regenerative braking technology has become an industry standard in the world of electric vehicles.

How do BEVs work?


#1. You press down on the accelerator pedal.

#2. This signals the controller, telling it how much power is to transfer to the motor

#3. The DC power from the battery gets converted into AC by an DC-AC inverter

#4. This again passes a AC-AC inverter and then delivered to the electric motors

#5. Electric motors convert electrical to mechanical energy and produce translation motion.

Problems with BEV

A person plugging in a charger head into a BEV charging port. Innovation.
Image source : unsplash


# Range -


They have a shorter range. The range varies according to a lot of controllable (battery size, power draw, charging tech) and uncontrollable (temperature, humidity, load) factors and is usually anywhere from 100 to 500 miles.

# Charging -


Batteries, at least as of now, require charging time anywhere from 50mins - 10hr depending on capacity, supply voltage and charging technology they are a long way from the convince of a quick minute refill of gas.


NEXT Read :

INDEPTH - HYBRID Electric Vehicle ( HEV )

INDEPTH - PLUG-IN HYBRID Electric Vehicle ( PHEV )

INDEPTH - MILD HYBRID Electric Vehicle ( MHEV )

INDEPTH - FUEL Cell Electric Vehicle ( FCEV )

BEV type - Electric Vehicle | Krityatirtha Paul

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