Go Back   Team-BHP > BHP Worldwide > The International Automotive Scene


Reply
 
Thread Tools Search this Thread
Old 26th April 2013, 15:26   #1
Senior - BHPian
 
vikram_d's Avatar
 
Join Date: Jul 2006
Location: Bangalore
Posts: 2,380
Thanked: 936 Times
Default Volvo's Flywheel KERS, claims 20% fuel consumption drop

Volvo has been testing a new Flywheel KERS system and are claiming 20 - 25% higher mileage figures according to various sources.

Quote:
Volvo’s solution is KERS – kinetic energy recovery system. Their system, known as Flywheel KERS, “is fitted to the rear axle. During retardation, the braking energy causes the flywheel to spin at up to 60,000 revs per minute. When the car starts moving off again, the flywheel's rotation is transferred to the rear wheels via a specially designed transmission.”

This is complimented by the fact that the internal combustion engine (ICE) shuts off as soon as the driver applies the brakes, so that the energy of the flywheel can be stored and then used when the car sets off again. The Swedes claim the system works best in city traffic, because “the flywheel's stored energy is sufficient to power the car for short periods,” and this allows the engine to be turned off for around half of the entire driving time. It is a system specifically designed to work at its most efficient in stop-start traffic.

What’s even more interesting is that the system can also boost performance, and the S60 test car they used could reach 62 mph or 100 km/h in 5.5 seconds, though it was not mentioned what ICE engine was used in the prototype.
Volvo's Flywheel KERS, claims 20% fuel consumption drop-volvoflywheelkers16.jpg

Volvo's Flywheel KERS, claims 20% fuel consumption drop-volvoflywheelkers26.jpg

Volvo's Flywheel KERS, claims 20% fuel consumption drop-volvoflywheelkers36.jpg

Volvo's Flywheel KERS, claims 20% fuel consumption drop-volvoflywheelkers86.jpg

News and image source: http://www.carscoops.com/2013/04/vol...tech-that.html

Other sources:http://www.motorauthority.com/news/1...nsumption-drop

Last edited by vikram_d : 26th April 2013 at 15:44.
vikram_d is offline   (5) Thanks Reply With Quote
Old 26th April 2013, 15:43   #2
Team-BHP Support
 
Rudra Sen's Avatar
 
Join Date: Apr 2004
Location: Bangalore
Posts: 10,404
Thanked: 4,093 Times
Default Re: Volvo's Flywheel KERS, claims 20% fuel consumption drop

Mod note: Thread moved from Assembly Line to The International Automotive Scene.
Rudra Sen is offline   (1) Thanks Reply With Quote
Old 26th April 2013, 15:49   #3
Senior - BHPian
 
srishiva's Avatar
 
Join Date: Nov 2006
Location: Bengaluru
Posts: 3,581
Thanked: 823 Times
Default Re: Volvo's Flywheel KERS, claims 20% fuel consumption drop

No mention about the price premium. Guess it wont store the energy if its stationary for some time (even a minute or two at traffic lights?)

I like the i-eloop system that Mazda has come up with where they use a supercapacitor which could scale better.
srishiva is offline   Reply With Quote
Old 26th April 2013, 17:17   #4
Senior - BHPian
 
vikram_d's Avatar
 
Join Date: Jul 2006
Location: Bangalore
Posts: 2,380
Thanked: 936 Times
Default Re: Volvo's Flywheel KERS, claims 20% fuel consumption drop

Quote:
Originally Posted by srishiva View Post
No mention about the price premium. Guess it wont store the energy if its stationary for some time (even a minute or two at traffic lights?)
Yeah it remains to be seen for how long it can store energy. My guess would be it would be more than a couple of minutes and the thing is rotating at 60,000 RPM. My guess is based on the fact that Volvo are claiming that they have tuned this system specifically for stop and go traffic conditions.

Quote:
Originally Posted by srishiva View Post
I like the i-eloop system that Mazda has come up with where they use a supercapacitor which could scale better.
The Mazda system cannot power the car itself. It will only charge the car's battery and help by taking load off the engine. Fuel savings are being claimed up to about 10%.
vikram_d is offline   Reply With Quote
Reply


Thread Tools Search this Thread
Search this Thread:

Advanced Search


Similar Threads
Thread Thread Starter Forum Replies Last Post
idling fuel consumption and pollution passionpurple Technical Stuff 30 28th September 2011 14:38
high fuel consumption in indica dls morten Technical Stuff 3 17th August 2006 09:32
best  and worst fuel consumption figure speedsatya The Indian Car Scene 66 25th September 2005 22:40
Diesel beats Hybrid in Fuel consumption test amit The International Automotive Scene 3 7th September 2005 19:31
Fuel Consumption while standing still amitverma Technical Stuff 26 29th June 2005 10:26


All times are GMT +5.5. The time now is 11:20.

Copyright 2000 - 2017, Team-BHP.com
Proudly powered by E2E Networks