Design And Fabrication Of Regenerative Braking System
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computer science topics
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#1
15-06-2010, 05:15 PM




Abstract:


Regenerative brake cooperative control balances the brake force of the regenerative and hydraulic brakes to minimize the amount of kinetic energy lost to heat and friction. It recovers the energy by converting it into electrical energy. To convert kinetic energy to electrical energy the system uses MG2 as a generator. The drive axle and MG2 are joined mechanically. When the drive wheels rotate MG2 which tends to resist the rotation of the wheels, providing both electrical energy and the brake force needed to slow the vehicle. The greater the battery charging amperage, the greater the resistance. The various uses of regenerative brakes are recharging a battery pack that power vehicle, taking accessory loads such as lights, taking accessory loads such as radio and stereo, giving power to pumps, conditioners and fans and in railways.
Use Search at http://topicideas.net/search.php wisely To Get Information About Project Topic and Seminar ideas with report/source code along pdf and ppt presenaion
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arshad007
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#2
14-07-2011, 11:26 PM

hii.. i am a mechanical engg student.. i am very much interested in the regenerative braking concept.. would u plzz mail me the data related to the same to my mail (arshadrasoolshaik@gmail.com)
thanks.
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smart paper boy
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#3
21-07-2011, 03:45 PM

Presented By
P. Venugopal Raju


.ppt   Regenerative braking system and it_s uses in[1].ppt (Size: 2.8 MB / Downloads: 1,081)
Regenerative braking system
What are brakes?
A brake is a device that decelerates a moving object / prevents an object from accelerating.
Brakes use friction to convert kinetic energy into heat
Guiding principle- kinetic energy increases quadratic ally with velocity -K = mv2 / 2
When the brake is pushed the caliper containing piston pushes the pad towards the brake disc which slows the wheel down.
Convectional braking system
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
How does it work
Vehicles driven by electric motors use the motor as a generator when using regenerative braking: it is operated as a generator during braking and its output is supplied to an electrical load; the transfer of energy to the load provides the braking effect.
Many modern hybrid and electric vehicles use this technique to extend the range of the battery pack.
Over view
Kinetic energy recovery system
The device recovers the kinetic energy that is present in the waste heat created by the car’s braking process.
The concept of transferring the vehicle’s kinetic energy using Flywheel energy storage was postulated by physicist Richard Feynman in the 1950s
How does K. E.R. S work
When the driver brakes most of the kinetic energy is still converted to heat energy but a portion is treated differently and is stored up in the car.
When the driver presses his boost button that stored energy is converted back into kinetic energy
The mechanical KERS system utilises flywheel technology to recover and store a moving vehicle’s kinetic energy which is otherwise wasted when the vehicle is decelerated.
Flywheel of K. E . R. S
Made of steel and carbon fibre which rotates at over 60,000 RPM.
60 kW power transmission in either storage or recovery
400 kJ of usable storage
Discharge mode of K. E. R. S
During this stage when the driver pushes the boost button the flywheel acts as a propulsion motor and discharges the energy to the wheels
The Flywheel rotor is decelerated during boost discharge mode and the energy is converted back.
Flywheel acts as a generator and sending energy back to electric motor, which works as propulsion motor.
Benefits of regenerative braking
Reduction of pollution
Increase in engine life
Breaking is not total loss
Wear Reduction
Reduction in pollution
Railway vehicle – The Delhi Metro saved around 90,000 tons of carbon dioxide (CO2) from being released into the atmosphere by regenerating 112,500 megawatt hours of electricity through the use of regenerative braking systems
Breaking is not total loss
Conventional brakes apply friction to convert a vehicle’s kinetic energy into heat. In energy terms, therefore, braking is a total loss: once heat is generated, it is very difficult to reuse. The regenerative braking system, however, slows a vehicle down in a different way.
Limitations 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
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
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CarolSwayze
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#4
01-08-2011, 12:36 PM

Hi thanks for sharing the information, can somebody tell me some business related project and implimentations, I am in need of such type project and implimentation. It's not necessary that it will be related to same type of business. Do help me.Smile

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#5
06-02-2012, 10:41 AM

to get information about the topic regenerative braking system full report ,ppt and related topic refer the link bellow

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subbu356
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#6
09-03-2012, 05:17 PM

please send me fullreport on this project and implimentation
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#7
07-08-2012, 09:54 AM

to get information about the topic"regenerative braking" full report ppt and related topic refer the link bellow

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hemanshu mehta
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#8
05-03-2013, 11:33 PM

pls send me full report on regenerative braking
email id: hemanshu_mehta@ymail.com
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#9
07-03-2013, 03:21 PM

To get full information or details of Design And Fabrication Of Regenerative Braking System please have a look on the pages


topicideashow-to-design-and-fabrication-of-regenerative-braking-system?page=2

topicideashow-to-design-and-fabrication-of-regenerative-braking-system?pid=151065

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