MikeR
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| posted on 1/12/10 at 02:00 PM |
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Electric Supercharger on petrol engine - fitted and works
Been reading this site .........
http://autospeed.com/cms/A_112129/article.html
Basically an eleectric supercharger - but not quite like the stuff sold on ebay. Thing is, from the article its claimed with engine plots to prove it
...... it works!
(get to the end of the article before you post on here that it can never work & you realise its not 100% as it seems & could potentially
work).
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steve m
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| posted on 1/12/10 at 02:05 PM |
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It looks like a hairdryer
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oadamo
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| posted on 1/12/10 at 02:08 PM |
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350amps and (it seems reasonable that most on-road usage would be for less than 2 seconds) yeah right lol.
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flak monkey
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| posted on 1/12/10 at 02:21 PM |
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Been discussed on here before. Theres no benefit over a crank driven charger, as you still need to generate the power to run it from somwhere.
We played with them at uni, and never had that much luck with them to be honest.
Sera
http://www.motosera.com
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MikeRJ
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| posted on 1/12/10 at 02:22 PM |
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quote:
Originally posted by oadamo
350amps and (it seems reasonable that most on-road usage would be for less than 2 seconds) yeah right lol.
Did you actually read the article? As a device to quickly get a conventional turbo producing boost at low RPM I think 2 seconds sounds quite
reasonable, and 350 Amps for that period of time would be quite possible from a lead acid battery.
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Humbug
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| posted on 1/12/10 at 02:45 PM |
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"But what about the huge current draw of VTES – up to 350 amps? Apart from specifying the use of a Valve Regulated Lead Acid battery and also
describing some potential breakthroughs that integrate super capacitors with lead-acid batteries, CPC isn’t clear as to where this
massive power will come from. However, a clue can be found in a tech paper by the company that suggests VTES
typically operates for periods of less than 2 seconds."
All very vague and "what if?", nothing concrete, and the article does not satisfactorily answer this critical question.
If it really would be possible to provide the power from ordinary batteries, why wouldn't they say so?
[Edited on 01.12.2010 by Humbug]
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CNHSS1
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| posted on 1/12/10 at 03:02 PM |
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at least one UK manufacturer has running examples of this technology, being used daily on its fleet. Current consumption for short periods can be
overcome, and dont think its ever intended to re-invent the wheel, but as an efficient, safe and responsive way of overtaking (think KERS or FPA boost
button) say on a motorway, or making a small efficient engined car, spritely away from the traffic lights, its ideal. As with any leccy motor, max
torque is available from zero rpm, and can be made to come in at any point, doesnt need to be linked with engine revs or exhaust gas flow like a
blower or turbo.
it will happen, just not yet and not as a replacement for current performance supercharging & turbocharging
"Racing is life, everything else, before or after, is just waiting"---Steve McQueen
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zilspeed
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| posted on 1/12/10 at 04:38 PM |
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I'm looking for a new battery for the Synergie HDi which I have right now.
Spec for cold cranking amps is 680 amps.
350amps for 2 seconds is no big deal within that context, especially if the reason is to get the main turbo woken up then bow out and leave it to get
on with it.
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deezee
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| posted on 1/12/10 at 07:29 PM |
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My favourite bit is where they claim this increases torque by 40% and has no impact of fuel consumption! Well if I've learnt anything about
engines, its about how increasing the compression in the cylinder, while running lean, rewards you with a melted piston.
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RazMan
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| posted on 1/12/10 at 07:34 PM |
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Probably not as ridiculous as it first seems - 350 amps is not excessive (less than most starter motors) as long as you have a dedicated battery
assigned to it. You can then have a tandem charging system which will put the juice back while the turbo isn't being used. Just think of the
battery as a closed circuit oil supply & pump.
Cheers,
Raz
When thinking outside the box doesn't work any more, it's time to build a new box
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Liam
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| posted on 1/12/10 at 08:03 PM |
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Hmmm, so it's next to useless as an actual performance supercharger, like on a trackday or something, unless you carry a massive bank of
batteries to run it, but it might make a good, if over-complicated and overpriced anti-lag system, or a kers-type boost for a little hybrid or
something. Meh.
Here's a thought - connect the power-hungry rotatey thing directly to the great big rotatey-power-generating thing sitting next to it with some
sort of belt-like connectey thing. No electric motor, no bank of batteries, yet works all the time and has as much power as it could possibly need.
I'll be rich!! ...[does patent search]... Doh! Several decades too late 
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