BorgWarner eBooster

Discussion in 'General Automotive Discussion' started by doublespaces, Nov 12, 2017.

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  1. doublespaces

    doublespaces Administrator

    AZ
    2009 E93 335i
    When does this thing go on sale? It seems like a pretty simple solution if you can deal with the extra weight of a battery. No more lag and no need for a trans brake or crazy stalls.


     
  2. Bmwfixerguy1

    Bmwfixerguy1 Lieutenant

    667
    07 335i MT
    From my understanding this is how they explained the new M3 is supposed to be last time I was at school
     
  3. doublespaces

    doublespaces Administrator

    AZ
    2009 E93 335i
    I think I read it say that it works on a 48v system, so not quite hybrid/EV territory at 200v+. I'm curious how they intend to regeneratively charge this battery without being an EV or hybrid. So maybe it will be
     
  4. dyezak

    dyezak Sergeant

    467
    Plano TX
    335is
    If you look at the flow of the air intake path there would be a clear path of airflow to push the ebooster in rotation to regen the battery. My guess is the bypass valve probably controls this regen capability.
     
  5. doublespaces

    doublespaces Administrator

    AZ
    2009 E93 335i
    Interesting point, as that wouldn't require any major changes. Do you think the fin design of the compressor would be efficient enough in reverse flow? To me, the way the fins angle would cause nothing but turbulence and there would have to be a pretty major restriction for something like air to overcome the magnets. Obviously not an electromagnet expert, but thats what comes to mind.
     
  6. dyezak

    dyezak Sergeant

    467
    Plano TX
    335is
    I have no clue, but I do know that when you use a motor as a generator you can vary the physical resistance by limiting the amount of power you put into the batteries. A good motor controller should be able to vary resistance from freewheel all the way to extremely difficult to spin.
     
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  7. doublespaces

    doublespaces Administrator

    AZ
    2009 E93 335i
    I figured as much but did not know that. Makes me wonder if it would make just about as much sense to have a special alternator that can power the 12v and 48v electrical systems somehow. Either stepping power up or down to accommodate perhaps.
     
  8. Twisted Tuning

    Twisted Tuning Sergeant Vendor

    437
    Hmm, travel back in time over decade ago when Thomas Knight was pushing E-superchargers. and was making power. This stuff is NOTHING new. they just added a mobile app

    EDIT: good thing about this is better compressor choices with Borg Warner.
     
  9. doublespaces

    doublespaces Administrator

    AZ
    2009 E93 335i
    I remember something like that... But it wasn't very practical. Hopefully with the 48v systems these things can recharge quicker, in fact this may be a good application of super capacitors.
     

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