describe the mechanical engineering student

1. GOVERNMENT POLYTECHNIC JAJAPUR
DEPARTMENT OF MECHANICAL ENGINEERING
SEMINAR
ON
ELECTRICALCAR
PRESENTED BY:-
JYOTIRANJAN SAHOO
MECHANICAL BRANCH
REGD.NO:-F21126004028
4TH SEMESTER
SUBMITTED TO:-
GITANJALI SETHY

2. CONTENT
• INTRODUCTION
• HISTORY
• COMPONENTS
• POWERFROMTHEELECTRICMOTOR
• ADVANTAGES
• DISADVANTAGES
• CONCLUSION

3. INTRODUCTION
• Electric cars are automobiles, which are
powered by the electric engine 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.

4. HISTORY
• 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.

5. COMPONENTS
• Motor
• Controller
• Charger
• DC/DC Converter
• Contactors
• Batteries

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

7. CONTROLLER
• Control the BLDC motor.
• Increase efficiency , reliability and extended
battery life time.

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

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

10. CONTACTORS
• 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.

11. BATTERIES FOR EV
• The batteries that are used for electric cars are
rechargeable.
• Flow of electrons can be reversed to “reload”
the negative electrode and makes the battery
rechargeable.

12. POWER FROM THE ELECTRIC MOTOR
• An electric motor has power and in turn puts out
a force that is measured in torque.
• The electric motor controller takes the power
from the batteries and delivers it to the motor.
• Working of electric engine and BLDC motor.

13. ADVANTAGES
• Reduce dependences on oil and
gasoline.
• Pollutants and noise free.
• Recyclable batteries.
• No fire hazards.
• Low maintenance and operation cost.

14. DISADVANTAGES
• High price, Tesla modal costs around
$50,000.
• High recharge time.
• Silence may be fatal.
• Range lies between 25-30 miles only.

15. 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.

16. THANK YOU…
Hope youenjoyed it ☺️