This document describes a regenerative braking system used in hybrid vehicles. The system recuperates energy lost during braking by storing it in a battery to power the motor when needed. It lists the components used, including an electromagnetic clutch, dynamo, transformer, and rectifier. It provides specifications and diagrams explaining how these components work, such as how the electromagnetic clutch attracts an iron gear to transfer rotation. The document also includes diagrams of the system's working block diagram and advantages of improving efficiency while reducing emissions.

1. DEPARTMENT OF MECHANICAL ENGINEERING
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2. IMTIYAZ ALAM

3. Regenerative braking system is used on automobile to recupe
some of the energy that is lost while the vehicle is stopping.
This technology is used in hybrid car that used both gas and
electricity as source of power. The energy that is recuped during
braking is saved in a storage battery and used later to power the
motor whenever vehicle needed.
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4. CONPONENT USED
 ELECTROMAGNATIC CLUTCH
 DYNAMO
 DC GEAR MOTOR
 TRANSFORMER
 RECTIFIER
 BRAKE PADDLE
 BEARING
 WHEEL
 CHAIN ASSAMBLY
 WOODEN FRAME
 DC VOLT METER
Many more as per requirement.
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5. HOW ELECTROMAGNETIC CLUTCH WORK?
Electromagnetic Clutch (EMC)– When we
provide power to EMC,
it perform as a magnet and attract iron gear as
shown in picture.
As we see the gear is fixed with iron dice,
when we provide power supply to EMC it
attract iron disc when disc attach with
electromagnet it transform shaft rotation to the
attached device.
ELECTROMAGNETIC CLUTCH
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6. SPECIFICATION:
 Diameter of Electromagnetic Clutch: 37mm.
 Electromagnetic Clutch Volt: 12 Volt (D.C.)
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8. DYNAMO
A dynamo, originally another name for an electrical generator, now means a
generator that produces direct current with the use of a commutator.
Specification:
Power Generating: 24Volts D.C.(maximum)
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9.  Specification :
 Step down Transformer
 Input Volt: 220 Volt(A.C)
 Output Volt: 12-24(A.C)
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10. BEARING
Ball bearing:
Ball bearing is the most and important part of this project with the help
of bearing reducing the deflection which occur during working
condition of wheel. It also maintain the assambly of chain and gear.
Inner Dia. 8mm
Outer Dia. 24mm
Type 6108
 No. of ball 7
Cutaway view of a ball bearing
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12. CHAIN
DIAMENSION:
 LENTH: 560MM
 GROOVE: 84
SPUR GEAR
DIAMENSION:
 THICKNESS OF GEAR: 3MM
 NO. OF TEETH: 28
 OUTER DIA: 60MM
 MODULE: 2
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13. Specification:
 Type of sensor: infrared sensor
 No. of sensor: single
 Sensor operate on: 12 volt
 Simple Rang regulator
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20. WORKING BLOCK DIAGRAM
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21. Given:-
Motor Voltage:-24v, Input supply
current:-2.2 amp.
Motor Power=V*I*cos φ
=(24*2.2*.8)=42.27 W
Motor Torque=(p*60,000)/(2*π*N1)
=627.58 N-m
Also given,
(No. Of teeth on motor gear) T1=28,
(No. Of teeth on wheel shaft) T2=24,
(Speed of wheel shaft) N2=750,
(Speed of motor shaft) N1=?
We have,
(N1/N2)=(T2/T1)
N1=(24*750)/(28)=643r.p.m 21

22. Advantages:
 Improve Brake efficiency.
 Recover loss of K.E
 Reduce CO2 emission.
 Reduce fuel consumption.
 Save electricity. (in Metro Train)
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23. Limitations :
• Increase initial cost.
• Increase weight on axle.
• It drop off at lower speed of the vehicle.
Applications:
 Auto-vehicle
 Mostly used in chargeable Two-Wheeler/Four-Wheeler
vehicle.
Thank You.
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