Regenerative Braking System

TECHNICAL SEMINAR PRESENTATION
REGENERATIVE BRAKING SYSTEM
Shri Ramdeobaba College of Engineering and Management
 Guide : Dr.Pranjali S. Deole
 Presented by : Sangeet B. Khule
 Roll No. : 60
 Semester : 5th Sem
 Department : Mechanical Engineering
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Sangeet Khule/Regenerative Braking System/Techical
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INDEX
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SR NO. CONTENT SLIDE NO.
1 Conventional Braking System 3
2 Introduction Of
Regenerative Braking System
4 - 6
3 Necessity Of The System 7 - 10
4 Elements Of Regenerative Braking System 11
5 Different Types Of Regenerative Braking System 12
6 Advantages And Disadvantages 14 -15
7 Research Papers 16 -25
8 Conclusion 26
9 Future Scope 27
10 References 28

• Friction is used for braking.
• Excessive heat energy is created during
braking.
• This heat energy dissipates into the air
wasting as much as the vehicle 80% of the
vehicle generated power
• Conventional Braking reduced fuel
efficiency. Regenerative Braking Systems
1. CONVENTIONAL BRAKING SYSTEM
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• Regenerative braking means recapturing the
kinetic energy of the vehicle motion and
turning into another energy during braking.
• Commonly, kinetic energy is converted into
electric energy
• This energy is stored in storage battery and
used later to power the vehicle in hybrid or
fully electric vehicles. Regenerative Braking
Systems
2. INTRODUCTION
REGENERATIVE BRAKING SYSTEM
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• In 1908 C.J. Paulson Patented a smart car
with Regenerative Braking System.
• The “Energy Regeneration Brake” system
was developed in 1967 by American Motors
Corporation (AMC) in cooperation with
Gulton Industries.
• During the late 2000s, an electronic control
unit used by BMW that engages the
alternator during braking. Regenerative
Braking Systems
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HISTORY

In most electric and hybrid electric vehicles on the road
today, this is accomplished by operating the traction
motor as a generator, providing braking torque to the
wheels and recharging the traction batteries.
REGENERATIVE BRAKING IN ACTION
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• In low-speed, stop-and-go traffic where little
deceleration is required; the regenerative braking
system can provide the majority of the total braking
force. This vastly improves fuel economy with a
vehicle, and further enhance the attractiveness of
vehicles using regenerative braking for city driving.
• At higher speeds, too, regenerative braking has been
shown to contribute to improved fuel economy - by
as much as 20%.
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3. NECESSITY OF THE SYSTEM

• Energy Conservation
• Wear Reduction
• Fuel Consumption
• Break Is Not Total Loss
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IMPROVEMENTS BY THE HELP OF SYSTEM

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WORKING OF REGENERATIVE BRAKING SYSTEM

• By applying brakes, the electric motors coupled with drive
wheels, rotated in reverse mode slowing down the car’s
wheels.
• A properly designed motor becomes an electric generator,
converting into electrical energy.
• This energy is feeding back into storage battery and used to
accelerate the vehicle. Regenerative Braking Systems
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EXPLAINED

 Energy Storage Unit (ESU) :
 The ESU performs two primary Functions:
• To Recover & Store Braking Energy.
• To absorb excess engine energy during light load operation.
 The Selection Criteria for an effective energy Storage includes.
• High specific energy storage density.
• High energy transfer rate.
• Small space requirement.
 The Energy recaptured by regenerative braking might be stored
in one of three devices , an Electrochemical battery, a Flywheel,
& a Hydraulic Accumulator.
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4. ELEMENTS OF REGENERATIVE BRAKING SYSTEM

Electric Regenerative Braking System.
 The Main Component
• Engine
• Motor/Generator
• Batteries
• Electronic Control System
 Hydraulic Regenerative Braking
System
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5. DIFFERENT TYPES OF REGENERATIVE BRAKING
SYSTEM

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• Improved Performance.
• Emission Reduction.
• Reduction in Engine Wear.
• Increase of overall energy efficiency of a vehicle.
• Cuts down on pollution related to electricity
generation.
• Increases the lifespan of friction braking systems.
• Smaller Accessories.
• Less use of traditional mechanical brakes leads to less
wear over time
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6. ADVANTAGES OF REGENERATIVE BRAKING
SYSTEM

• Added Weight-Extra components can increase weight.
• Complexity-depends on control necessary for operation of
regenerative braking system.
• Cost of components, engineering, manufacturing and
installation is high.
• Friction brakes are still necessary.
• Safety-Primary concern with any energy storage unit of
high energy density.
• Added maintenance requirements dependent on the
complexity of design.
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6. DISADVANTAGES OF REGENERATIVE
BRAKING SYSTEM

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7. RESEARCH PAPERS

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TERMINOLOGIES
 Artificial Neural Network (ANN)
 Brushless DC (BLDC) motor;
Electric Vehicle (EV)
 Hybrid Energy Storage System
(HESS)
 Regenerative Braking System
(RBS)
 Supercapacitor
Fig. 1

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Fig. 2

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Fig. 3

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Fig. 4

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Fig 6

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Fig. 7

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Fig. 8

• Regenerative braking is an effective method of
improving vehicle efficiency and longevity.
• Is already in use in many EVs
• The technology to do it exists and is often well worth it
• Regenerative braking conserve energy lost during
conventional braking
• Regenerative braking system has a vast scope for
further development and energy savings.
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8. CONCLUSION

As regenerative braking save up to 50% of energy new
inventions can be discovered in the form of new
electricmotors through which more energy can be
saved and installed in many vehicles which can helpful
in avoidance of transmission losses, increase the
efficiency and helpful in for conservation of energy for
greener future.
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9. FUTURE SCOPE

• Farshid Naseri, Ebrahim Farjah, Teymoor Ghanbari, 2016, ‘An Efficient
Regenerative Braking System Based on Battery/Supercapacitor for
Electric, Hybrid and Plug-In Hybrid Electric Vehicles with BLDC Motor’
, IEEE
• Wanzhong Zhao, Gang Wu, Chunyan Wang, Leiyan Yu, Yufang Li,
2019, ‘Energy transfer and utilization efficiency of regenerative
braking with hybrid energy storage system’, Journal of Power
Sources
• Pratik Bhandari, Shubham Dubey, Sachin Kandu, Rupesh
Deshbhratar, 2017, ‘Regenerative Braking Systems (RBS)’,
International Journal of Scientific & Engineering Research, Volume 8,
Issue 2
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10. REFERENCES

• https://www.seminarstopics.com/seminar/388/regenerative-braking-
system-seminar-report-pdf
• wikipedia.org/wiki/Regenerative brakes
• Auto.howstuffworks.com/auto-parts/brakes/brake-
types/regenerative-braking
• S.J.Clegg, “A Review of Regenerative Braking System”, Institute of
Transport Studies, University of Leeds, Working paper of 471, 1996.
• Chibulka.J, “Kinetic Energy Recovery System by means of Flywheel
Energy Storage”,Advanced Engineering, Vol. 3, No. 1, 2009, pp. 27-38
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THANK YOU
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Regenerative Braking System

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