in this ppt given information is Regenerative braking technology funnels the energy created by the braking process back into the system in the form of charging the battery for further use In a regenerative braking system the energy normally lost in the braking process is transferred to the generator from the rotating axel and then transferred to the battery, thus saving energy Give suggestion in comment

1. Name of topics :-Regenerative braking system
MADE BY:- SANGHARSH R KAMBLE
ROLL N0. :-3310
YEAR:- 2YR (3SEM)
GUIDE :- AJAY JOSHI SIR

2. Introduction
 If you are in a habit of start……..stop…….start……stop. In a city traffic, you know it
can be a huge waste of time and it also waste of energy.
 Getting a car moving needs a big input of power and every time you hit the break
all the energy you built up disappears again, wastesd in a bikes pad as heat.
 Wouldn’t it be good if you could store this energy somehow and reuse it next
time you started to accelerate ? That’s the basic concept of regenerative brakes.

3. Regenerative braking
 Regenerative braking technology funnels the energy created by the
braking process back into the system in the form of charging the
battery for further use
 In a regenerative braking system the energy normally lost in the
braking process is transferred to the generator from the rotating axel
and then transferred to the battery, thus saving energy

4. How does it work
The system that drives the vehicle does the majority of the
braking. When the driver steps on the brake pedal of an
electric or hybrid vehicle, these types of brakes put the
vehicle's electric motor into reverse mode, causing it to run
backwards, thus slowing the car's wheels. While running
backwards, the motor also acts as an electric generator,
producing electricity that's then fed into the vehicle's
batteries.

5. v v
Motor
IC Engine
Generator Battery
Wheel
Wheel
Motor
Transmission
IC Engine
Generator Battery
Wheel
Wheel
Motor
Transmission
IC Engine
Generator Battery
Wheel
Wheel
Scenario 1: Low speed - Power is
provided by electric motor using energy
supplied by the DC battery
Scenario 2: Braking – Kinetic energy is
converted to electric energy during
regenerative braking by electric motor
and supplied to battery.
Scenario 3: High speed – Power is
provided by IC engine and electric motor
via generator. Generator also charge
battery during high speed.
Over view

6. How do different vehicles use regenerative brakes?
0
5
10
15
20
Bicycle CAR Dilivery truck train
% energy saved in vechical
% energy saved in vechical

7. Advantages of regenerative braking system
 Better fuel economy.
 Reduced CO2 emissions.
 Approximately 30% saving in fuel consumption.
 Reduction of pollution
 Increase in engine life
 Breaking is not total loss
 Wear Reduction

8. Disadvantages of Regenerative braking
system
 The regenerative braking effect drops off at lower speeds, therefore the friction
brake is still required in order to bring the vehicle to a complete halt.
 The friction brake is a necessary back-up in the event of failure of the regenerative
brake.
 Most road vehicles with regenerative braking only have power on some wheels (as
in a 2WD car) and regenerative braking power only applies to such wheels, so in
order to provide controlled braking under difficult conditions (such as in wet
roads) friction based braking is necessary on the other wheels

9. Application:-
 Electric Trains
 Electric Cars
 Bikes
 Delivery truck and other vehicles

10. Conclusion
 The energy efficiency of a conventional brake is only about 20 percent, with the
remaining 80 percent of its energy being converted to heat through friction. The
miraculous thing about regenerative braking is that it may be able to capture as
much as half of that wasted energy and put it back to work.
 This reduces fuel consumption by 10 to 25 percent.
 Hence regenerative braking plays an important role in fuel consumption and also
in the field of speed

11. Thank you