e vehicle

1. Presented by,
Sourav ghosh ,& avijit basak
MALDA POLYTECHNIC,MALDA
DEPARTMENT OF MECHANICAL ENGINEERING

2. INTRODUCTION
 Electric cars are automobiles,which are
powered by the electric and electric energy.
 The development of the electric vehicles is a
very perspective and important process.
 Evs , are vehicles that are powered by an
electric motor instead of an internal
combustion engine.

3. HISTORY OF THE ELECTRIC VEHICLE
 The history of the electric vehicle began in
the mid 19th century.
 1832: Robert Anderson invents a non-
rechargeable electric carriage.
 1835: Thomas Davenport builds the first
practical electric vehicle.
 1976: General Electric was chosen to
construct a parallel-hybrid sedan, and
Toyota built its first hybrid car.

4. COMPONENTS
 Motor
 Controller
 Charger
 DC/DC
Converter
 Contactors
 Batteries

5. MOTOR
 Generally the Brushless DC Motor is used.
 Simpler to maintain,More durable,Smaller.
 85%-90% more efficient.
 Able to self-start.

6. CONTROLLER
 Control the BLDC motor.
 Increase efficiency,reliability
and extended battery life.

7. CHARGER
• It contains a plug that connects
electric vehicle batteries to an
electrical source,providing the
batteries with electrical energy.

8. DC/DC CONVERTER
 Recharges the battery through DC converter.
 The lota DLS-55 is the most common option.

9.  This is like a big ON switch,powering up the drive circuit when
we turn the key.
 The Nanfeng ZJW400A is an economical option,or the Gigavac
GX14 is a higher powered option.

10. BATTERIES FOR THE “EV”
 The batteries that are used for electric car
are rechargeable.

11.  Flow of electrons can be reversed to “reload” the
negative electrode and makes the battery
rechargeable.
Contained:-

12. POWER FROM THE ELECTRIC MOTOR
 An electric motor has power and in turn puts
out a force that is measured in torque.

13. Contained:-
 The electric motor controller takes the
power from the batteries and delivers it
to the motor.

14. Contained:-
 Working of electric engine and BLDC
motor.

15. VARIOUS “HEV”
The Lohner-Porsche Mixte Hybrid was the first gasoline-
electric hybrid automobile.
The Toyota Highlander Hybrid has a series-parallel drivetrain.
The BMW Concept 7 Series ActiveHybrid is a mild hybrid.
The Chevrolet Volt is a plug-in hybrid.

16. ADVANTAGES
 Reduce dependences on oil and gasoline.
 Pollutants and noise free.
 Recyclable batteries.
 Low maintenance and operation cost.

17. DIS-ADVANTAGES
 High price,Tesla model cost around $50,000.
 High recharge time.
 Silence may be fatal.
 Range lies between 25-30 miles only.

18. CONCLUSION
 With this , we come to following facts that number of
expected vehicles doubling on the roads in the near future the
need for this alternative energy is very evident and has
promising returns.
 Important to produce vehicles that do less , have a longer
range, and use less energy.
 Lower our toxic emissions and localize green house effects.
 Increase the overall energy efficiency of cars.

19. REFERENCES
 Senger, R.M.Markel, and J. Nelson,
“Validation of advisor in aseries of
Electric Vehicle,” SAE paper
981133.1998.
1) http://www.fueleconomy.gov
2) http://www.auto.howstuffworks.com
3) http://Wikipedia.org
4) http://www.afdc.energy.gov

20. Thanks for your
patience.