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  1. 1. 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
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  3. 3. 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
  4. 4. ● “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
  5. 5. ● 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.
  6. 6. • Electric cars contribute to cleaner air. • Reduced carbon emissions hence less air pollution. • Produce 27% less carbon(monoxide and dioxide) than combustion engines. 6
  7. 7. 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
  8. 8. GERMAN ELECTRIC CAR,1904 8
  9. 9. ⮚ 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
  10. 10. • 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
  11. 11. MAHINDRA REVA 11
  12. 12. ● Contributes to cleaner air. ● To preserve the fossil fuels. ● Less maintenance ● More efficient ● Cost Effective 12
  13. 13. ● 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
  14. 14. BASIC COMPONENENTS OF ELECTRIC VEHICLE: ● Energy Storage Unit ● Controller ● Propulsion system
  15. 15. 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.
  16. 16. 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.
  17. 17. 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.
  18. 18. PLUGIN HYBRID HYBRI D BATTER Y 18
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  20. 20. • 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
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  22. 22. • 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
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  24. 24. • 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
  25. 25. ● 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
  26. 26. 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
  27. 27. 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
  28. 28. 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
  29. 29. • 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
  30. 30. • 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
  31. 31. • 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
  32. 32. 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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