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Old 05-08-2008, 08:30 PM   #1 (permalink)
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Pulse & Glide + Flywheel Energy Storage

rather then "pulse and glide" cruise control setting, couldn't you get the same effect of optimizing the time spent at min BSFC using a cvt energy storage flywheel.
cycle of 50 % drive + accelerate flywheel 50% ic off drive from flywheel. Although that would lose 10% due to conversion loss would that not give 10% better mpg at a constant speed?

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Old 05-08-2008, 10:36 PM   #2 (permalink)
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You would need dual CVT's to keep engine RPMs low. One between the flywheel and engine, the other between engine and wheels. I can't see the weight of the whole mess being good for economy. Plus you'd be pushing 40% drivetrain losses.
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Old 05-08-2008, 11:44 PM   #3 (permalink)
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It's an interesting idea.

Could you not theoretically use something like the Prius' power split device? The added complexity/weight of that setup seems to work well.
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Old 06-12-2011, 06:59 PM   #4 (permalink)
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There is something engineered like that, they used it in de f1 kers.
And there bussy working on a street hybrid one, called a flybrid.
Volvo is going to use it and Jauguar has also a prototype.

I really like the idea, your not converting power but simply storing kenetic energy. Thus getting a claimed efficiency off 85% !!(Electic reg. braking 30%)
And the weight and enviremental impact are also far less.

Williams Hybrid Power - Flywheel Background

Gyrobus - Wikipedia, the free encyclopedia

Volvo touts mechanical KERS for future road cars (but fails to mention partners Flybrid & Torotrak)

Last edited by beer; 06-12-2011 at 07:05 PM..
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