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DEPARTMENT OF COMPUTER SCIENCE AND ENGINEERING
PRESENTATION DAY – I (28.11.2022)
ELECTRIC CARS
BATCH NO: 10
PRESENTED BY:
Sivabalaji T [22CS008]
Nithish S [22CS118]
Tulasidhasan S [22CS158]
Revogun S [22CS087]
Siva Kumar S [22CS157]
GUIDED BY:
Mr.M.Hariprabhu
Assistant Professor/EEE
1

TOPIC SLIDE NUMBER
INTRODUCTION 4
POSITIVES OUTCOMES 6
HISTORY 7
ELECTRIC CARS IN INDIA 10
NEED OF ELECTRIC CARS 12
WORKING 13
TYPES OF ELECTRIC CARS 18
LIFE SPAN OF ELECTRIC CARS 25
COMPARISON 26
ADVANTAGES & DISADVANTAGES 29
POSITIVE OUTCOMES ON ENVIRONMENT 30
CONCLUSION 31
REFERENCES 32
3

● “Electric cars” generally
refers to road going
automobiles powered by
electricity.
● Propelled by one electric
motor or more using
batteries
● Electric motors give instant
torque, and smooth
acceleration
4

● Electric cars are measured by the same safety
standards as standard cars, and many have the highest
5-star ratings.
● There have been (very rare) reports of lithium ion
batteries catching fire and exploding, but extra safety
measures are installed to ensure this cannot happen.
● These include fuses and circuit breakers, plus coolant
run through battery packs to keep them at a low
temperature.

• Electric cars contribute to cleaner air.
• Reduced carbon emissions hence less air pollution.
• Produce 27% less carbon(monoxide and dioxide)
than combustion engines.
6

Electric cars enjoyed popularity between the late 19th
century and early 20th century
Early History :
In 1890s, electric automobiles held many speed and
distance records.
Before the 1920s, electric automobiles were competing
with petroleum-fuelled cars for urban use of a quality
service car.
7

⮚ From 1990s to Present :
● Renewed interest in the perceived independence that
electric cars had from the fluctuations of the
hydrocarbon energy market.
● As on July 2012, other electric automobiles, city cars,
and light trucks available in some markets for purchase
include the REVAi, Tesla, Volt, etc.
9

• Companieslike Mahindra, Chevrolet and
Toyota have launched electric cars in India.
• Mahindra launched the first model of EV Reva back in
the late 1990s.
• However efforts have been made to improve the power
and luxury of the car.
• In November 2011, Reva NXR was launched
which could run 160 km when fully charged.
10

● Contributes to cleaner air.
● To preserve the fossil fuels.
● Less maintenance
● More efficient
● Cost Effective
12

● The driver presses the accelerator
which in turn sends the signals to the
controller.
● When fully accelerated, maximum
voltage is supplied to the motor.
● On releasing the accelerator, no
voltage is supplied.
● Two potentiometers are connected.
● When both potentiometers show same
deviation, voltage is supplied further
and car moves
13

BASIC COMPONENENTS OF ELECTRIC
VEHICLE:
● Energy Storage Unit
● Controller
● Propulsion system

ENERGY STORAGE UNIT;
The energy storage unit will have a way to store
power. A chemical battery is the most common energy
storage technology currently, although it can be
different - for example - A fuel cell (which gets its
electricity from hydrogen rather than a battery pack),
can be used instead of a chemical battery as the energy
storage unit.

CONTROLLER:
The controller acts as a pipeline or gateway to the
electric motor.. The controller will do other things too -
it moderates the power, will also act as a converter -
converts power from DC to AC, or it might also increase
or decrease the amperage etc. The controller is the brains
of the system.

Propulsion system:
The electric motor, which is the propulsion system,
converts the electric power and converts this into physical
energy for movement.
The whole system is a much simpler, more efficient device
than the combustion engine found in most cars, enabling
you to get the most mileage for your charge.

PLUGIN
HYBRID
HYBRI
D
BATTER
Y
18

• Both the electric motor and the internal combustion
engine needed to run the car.
• Combustion engine is used only to charge the battery
• Rechargable batteries-Recharged by internal
combustion and regenerative braking.
• It has a larger battery pack that is plugged into the
electric grid for charging, increasing the share of
electric power used by the car.
20

• Uses a small electric battery to support the internal
combustion engine.
• Provides increased fuel efficiency.
• The battery is recharged by both the gasoline engine
and regenerative braking.
• Regenerative braking captures kinetic energy to charge
batteries when the driver pushes the brakes
22

• Battery electric vehicles are all electric.
• No internal combustion engine
• Needs large recharge time (7-8 hours)
• Car halts when the battery dies.
• In order to run 80 plus miles, it requires a large
battery i.e, 18kWH to 36 kWH.
24

● Different type of electric cars have different life spans.
● Battery EVs can run for 5 years or 1,00,000 miles
before fully disintegrated.
● The Plug-in hybrids and hybrids have a longer life
span due to continuous recharging from the internal
combustion engines and batteries.
25

ELECTRIC
CARS
COMBUSTION
CARS
From electricity produced
by batteries
By combustion of fossil
fuels and petroleum
Slightly higher due to
expensive batteries
Cheaper than that of
electric vehicles due to
cheaper parts
Doesn’t produce harmful
emissions and contributes
in clean air.
Produces harmful carbon
emissions therefore
polluting the air.
Running cost is low due to
lesser number of parts.
High due to more number
of parts and replacement
of oils, etc.
26
ENERGY
PRICE
POLLUTION
RUNNING
COST

ELECTRIC
CARS
COMBUSTION
ENGINE CARS
Expensive due to expensive
batteries
Cheaper than electric cars.
Electricity rate may vary from
place to place.
Fuel prices remains almost
constant in every region
across the world.
Most companies don’t have
certified mechanics for
servicing of electric cars.
A lot of mechanics know how
to service a combustion cars
27
PRICE
FUEL RATE
SERVICING

ELECTRIC CARS COMBUSTION
ENGINE CARS
Zero greenhouse gases from the
cars.
Releases harmful greenhouse
gases.
Less carbon emissions than
combustion engine cars
27% more carbon emissions
than that of electric cars.
But overall, particulate matter
produced is 3.6 times more than
gasoline cars(in countries
relying on natural resources for
electricity).
Particulate matter
production is less.
27

• Cheaper to run because of low rates of electricity
than petrol.
• Zero harmful emissions, better for environment.
• Nearly 100% recyclable batteries.
• Reduces noise pollution.
• Can be recharged almost anywhere in urban
areas.
29

• Time required to
recharge the batteries is
more.
• Lesser charging stations.
• More expensive than the
combustion engine cars.
• The batteries provided
are quite heavy
increasing the net weight
of the car.
30

• Been in market since 1990s and created a new era in
field of automobiles.
• EV has reduced carbon emissions significantly in the
area where it is used.
• It restores the balance of ecosystem to some extent.
• The future of EVs is bright as there is sufficient
Lithium reserves to power 4 billion electric cars.
31

1. http://en.wikipedia.org/wiki/File:Bundesarchiv_Bild_183-
1990-
1126-500,_Kraftdroschke.jpg
1. http://www.tva.com/environment/technology/car_vehicles.htm
2. http://drivingthenortheast.com/wp-
content/uploads/2011/08/What-Everyone-Should-Know-about-
EVs.png
3. http://auto.howstuffworks.com/fuel-efficiency/vehicles/electric-
car-battery3.htm
1. http://money.msn.com/saving-money-
tips/post.aspx?post=e86c2726-7b2e-4e49-8538-63db582ec39d
2. http://healthland.time.com/2012/02/14/why-electric-cars-are-
more-polluting-than-gas-guzzlers-at-least-in-china/
32

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