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Primotenente Primotenente is offline

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  1. Primotenente
    05-09-2014 01:00 AM - permalink
    Primotenente
    Hello

    Exactly. Side to side is another thing and done by electronics. Xmode and breake vectoring are about side to side. This is what subiesailor fails to understand and why he is wrong.

    1.
    Yes, in theory they can vary torque more, and make it a front wheel drive but what would be the advantage of having a fwd or "almost fwd vehicle"? So it is only a disadvantage, especially as the clutch is always slipping and sending power to the rear.

    2.
    The differential does not work as an LSD - the MPT works as "LSD" - the differential only works as differential and balances torque. Point is a differential is made for this, a clutch not.

    The point is that a differential is much smoother and faster and therefore the better solution. Whith a slight rear wheel bias you have better handling. VTD feels more like rwd, the other like fwd with endless understeering.

    Go to youtube, enter "quattro snow", whatch those viedeos and you will see what I am talking about.
  2. pcray1231
    05-08-2014 06:07 PM - permalink
    pcray1231
    Hey man, too bad they closed that thread. Teach me something. Per my understanding, the thing that distinguishes VTD from "Active AWD" is the planetary center diff. Thus we are only talking about front/rear power distribution, and left/right is an independent conversation.

    BOTH use an electronically controlled MPT clutch. VTD adds a planetary gear differential. So, what does that planetary center diff do? My understanding:

    1. Bias the torque to the rear.
    2. Act as a center LSD. Front/rear remains controllable with MPT clutch but can't step too far out.

    That said, if the MPT clutch is truly fully controllable, capable of handling real loads and react very quickly, then even without that planetary diff:

    - Subaru can set the bias pretty much wherever it wants.
    - The LSD would almost never engage, and when it does, it'd be in situations where you might rather it not.

    I realize the "if's" are big ifs. But we're talking theoretically here. What am I missing?

  About Me

  • About Primotenente
    Location
    Europe
    Your Car
    Outback 3.0 AT MY05 (VTD/VDC/LSD)

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  • Last Activity: 08-29-2016 05:00 PM
  • Join Date: 12-29-2007
  • Referrals: 1

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  Mentions

01-12-2016
08:34 AM - 1454 mentioned Primotenente in post Article: The 2017 Audi A4 Allroad Is Your Luxurious Subaru Outback
Primotenente I don't know that I ...
11-05-2015
12:19 AM - MiddleAgeSubie mentioned Primotenente in post Deleted Posts

  Quotes

08-07-2016
04:38 AM - Primotenente quoted yeditityet in post Ever driven a better car in on snow/ice?
I appreciate all of the respons...
08-06-2016
04:20 AM - Primotenente quoted GrumpySquatch in post VDC vs. X-Mode
(...) The VDC algorithms are like...
04:03 AM - Primotenente quoted banjo bud in post VDC vs. X-Mode
I don't have a VDC button. I j...
06-10-2016
07:54 AM - yellowaircraft quoted Primotenente in post AWD ON/FF Switching Mode
What do you think would be the be...
02:33 AM - Primotenente quoted johnre in post 4th Gen Uncommon Great Styling
Oh, now we're ranking the e...
06-09-2016
06:14 PM - Primotenente quoted subiesailor in post 3.0 v 3.6 Outback, which is better?, and why?
The 3.6 is a nice engine. Today ...
02:55 AM - Primotenente quoted yellowaircraft in post AWD ON/FF Switching Mode
I wasn't thinking about saving on g...
06-05-2016
02:31 AM - Primotenente quoted N4HHE in post Interesting Tesla Model 3 fun fact.
I'm not the one ignoring f...
06-04-2016
08:04 PM - N4HHE quoted Primotenente in post Interesting Tesla Model 3 fun fact.
While I agree about the CVT threa...
02:09 PM - Primotenente quoted 1454 in post Interesting Tesla Model 3 fun fact.
N4HHE, You should goo...
06-01-2016
02:31 PM - Primotenente quoted subiesailor in post Interesting Tesla Model 3 fun fact.
My brothers house has a solar wa...
02:26 PM - subiesailor quoted Primotenente in post Interesting Tesla Model 3 fun fact.
Which is - if I translated it cor...
01:34 AM - Primotenente quoted N4HHE in post Interesting Tesla Model 3 fun fact.
(...) Let the DOE do your ...
01:28 AM - Primotenente quoted skipw in post Interesting Tesla Model 3 fun fact.
(...) My hot water heater ...
01:23 AM - Primotenente quoted N4HHE in post Interesting Tesla Model 3 fun fact.
(...) Go look at the EPA's...
05-30-2016
02:27 AM - Primotenente quoted skipw in post Interesting Tesla Model 3 fun fact.
(...) But that's not what ...
05-29-2016
02:39 PM - Primotenente quoted skipw in post Interesting Tesla Model 3 fun fact.
Germany, by comparison, is...
05-26-2016
02:46 AM - Primotenente quoted Westiedog in post Subaru Outback vs BMW 328i xDrive
BMWs are designed to be money ...
02:36 AM - Primotenente quoted jws360 in post Subaru Outback vs BMW 328i xDrive
Hate to say this, but all B...
05-23-2016
05:00 PM - Primotenente quoted subiesailor in post Outback v. VW Alltrack v. ??
Different systems yes, same off ...

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