BMW Patents Its Electric Turbocharger Technology. More Power, Less Lag.

[Boss330]

Originally Posted by Bowser330

Check out phantom electric superchargers. They are using electric motors to drive centrifugal compressors.

They have dyno proven results in several types of cars.

Unfortunately the systems are rather small however I wonder if two systems one for each turbo could work on the S55.

Compounding turbo technology could be an alternate to turbo upgrades, by pre-pressurizing the air charge the pressure ratios are multiplied and the stock turbos can produce higher than normal boost pressures more efficiently.

Thoughts?

Similar to this?

http://www.aeristech.co.uk/electric-supercharger

[crashtestdummy81]

The 48V 10KW eSupercharger mentioned in that link, if connected to 4 of the lithium batteries in use in the M3/4 to give the correct voltage could pull a continuous current of up to 208A, which would give you a run time of a little under 20 mins from full charge to bone flat assuming 100% efficiency.
wouldn't like to say how long that would take to charge again.
Based on the data sheet 2 of these would actually slow things down on the N55 down above about 6000rpm. 2 would also cut the run time in half.

[Bowser330]

Originally Posted by Boss330

Similar to this?

http://www.aeristech.co.uk/electric-supercharger

Yes just like that one and that one looks to be much more powerful however not clear on the availability and price point, it's looks expensive.

The phantom system was tested by this guy....http://www.wildweasel.ca/HowTo/Auto/eturboTest.aspx
He's been blogging about the crappy ebay electric superchargers and gave the phantom a test and was impressed that it works. He tests the electric supercharger with and without his roots blower to show that compounding the boost works.

I am concerned about the cfm output being enough from the electric superchargers, anyone know the peak cfm of the s55 turbos ?

[Aridk]

Boss 330

Check out this page in connection to,our earlier posts
Picture is from:
http://www.evo.co.uk/bmw/3-series/14...plug-in-hybrid

[Boss330]

Originally Posted by Aridk

Boss 330

Check out this page in connection to,our earlier posts
Picture is from:
http://www.evo.co.uk/bmw/3-series/14...plug-in-hybrid

Thanks for the link

[saxonb]

This is cool:

FullElectric Electric Turbocharger Technology (FETT)

http://www.aeristech.co.uk/full-elec...ger-technology



Aeristech’s FullElectric electric turbocharger introduces an electrical coupling between the turbine and compressor, replacing a conventional shaft layout. When using an electrical coupling, the turbine and compressor are free to operate at different speeds, meaning their design is capable of far greater aerodynamic operation.

If available, a small energy storage device (such as a capacitor, supercapacitor, or battery pack) allows the compressor to respond rapidly to transient demand. The energy storage device can be conveniently recharged from the approx. 40% excess energy available in exhaust gas whenever a turbocharger is in use.

[alehandro]

Originally Posted by M-Power111

interesting, this will obviousley solve the turbo lag problem. i can def. see this being on the new M3 or atleast i hope it will be. a tri-turbo sounds better then a bi-turbo.

I totally agree with you my friend

[MJ6]

Holy necro'd thread Batman...
7+ years has got to be some kind of friggin record.

alehandro For everyone sake, please take a look at the posting date of these threads before raising them from the dead. The member you just agreed with hasn't been active on the forum since 2012, and this was a post from 10+ years ago.