[torsen] Torsen 3

Keith Maddock Keith.Maddock at TRW.COM
Tue Jan 6 13:09:13 EST 2004

Yes, that is the gist of it... Haldex supports external control via the CAN bus - for instance the ABS/TC/DSC system can take control of the haldex if desired. Or you can just have a little CAN box that sends out a "full coupling please" signal whenever the driver hits the button...  Or a knob if you only want 80% coupling, not sure how you'd affect durability with that though...

A3 / S3 also uses Haldex, that seems to be it for Audi

The next generation Passat will have Haldex too, since it is no longer based on a Audi platform.


Keith Maddock, TRW Automotive,  Koblenz, Germany
Slip Control Systems, Systems Design, Traction Control
+49 (0)261/ 895 2474    -   -   keith.maddock at trw.com
@ Raco, MI USA Winter Test Track 06.01.04 - 16.01.04
     Raco Phone: +1 (906) 248 3882 x27

>>> "andre" <andre at online.ee> 12:57:58 06.01.2004 >>>

 Ah, you mean while approaching track, hit "da locker" button, and have pure
 locker style center while on track? I thought for a moment Haldex has come out
 with something new.
 btw, what Audis, besides TT, use haldex?

On 6 Jan 2004 at 10:27, QSHIPQ at aol.com wrote:

> It's a clutch that can be, and is designed to be engaged all the time under 
> power.  Audi chose to use it as a coupling device.  Only programing or a switch 
> could change that quite easily.
> SJ
> In a message dated 1/6/2004 9:23:21 AM Central Standard Time, andre at online.ee 
> writes:

> Curious, what is "fulltime haldex"? Isn't Haldex just a clutch?

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