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Audi Multitronic
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ok, heres the deal, its a flat steel belt riding on 2 'v' pulleys. the pulleys are split down the middle and can seperate/close together (via hydraulics). each pulley does the opposite of the other, so the belt rides on different portions of the pulleys, resulting in a continuous change in tranny ratio.
other car people have done this, but they preload the belt a whole bunch to prevent slipping (it is metal on metal after all), this results in low fuel efficiency/high wear on the belt. the multitronic system tightens the belt pulleys based on sensed torque at the pulley itself. this takes care of the inefficiency/high wear, since it only loads the belt when it needs to.
the multitronic can go full auto (where engine climbs/stays at peak torque under full throttle acceleration), or it can do a simulated 6-speed, performing step changes in ratio based on driver input (kinda like tiptronic).
that do it for ya?
Al
Allyn Malventano, ETC(SS), USN
87 Rieger GTO Scirocco 16v (daily driver, 170k, rocco #6)
86 Kamei Twin 16V Turbo Scirocco GTX ('it has begun', rocco #7)
87 Jetta 8v Wolfsburg 2dr (daily driver, 260k, 0 rattles, original clutch, driveshafts, wheels :)
----- Original Message -----
From: Captnbr@aol.com
To: Scirocco-L@scirocco.org
Sent: Thursday, March 28, 2002 11:25 PM
Subject: Audi Multitronic
Anyone have the 411 on how Audi's new multitronic Transmission works. They say there is no gears and no shifting. So how does it work when you floor it, does it just shoot up to redline and stay there? I just don't understand it. Anyone want to enlighten me?
Brian 86 16v
98 Jetta GLX Vr6
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<DIV><FONT face=Arial size=2> ok, heres the deal, its a flat
steel belt riding on 2 'v' pulleys. the pulleys are split down the middle and
can seperate/close together (via hydraulics). each pulley does the opposite of
the other, so the belt rides on different portions of the pulleys, resulting in
a continuous change in tranny ratio.</FONT></DIV>
<DIV><FONT face=Arial size=2> other car people have done this,
but they preload the belt a whole bunch to prevent slipping (it is metal on
metal after all), this results in low fuel efficiency/high wear on the belt. the
multitronic system tightens the belt pulleys based on sensed torque at the
pulley itself. this takes care of the inefficiency/high wear, since it only
loads the belt when it needs to.</FONT></DIV>
<DIV><FONT face=Arial size=2> the multitronic can go full auto
(where engine climbs/stays at peak torque under full throttle
acceleration), or it can do a simulated 6-speed, performing step changes in
ratio based on driver input (kinda like tiptronic).</FONT></DIV>
<DIV><FONT face=Arial size=2>that do it for ya?</FONT></DIV>
<DIV><FONT face=Arial size=2>Al</FONT></DIV>
<DIV><FONT face=Arial size=2></FONT> </DIV>
<DIV><FONT face=Arial size=2>Allyn Malventano, ETC(SS), USN<BR>87 Rieger GTO
Scirocco 16v (daily driver, 170k, rocco #6)<BR>86 Kamei Twin 16V Turbo Scirocco
GTX ('it has begun', rocco #7)<BR>87 Jetta 8v Wolfsburg 2dr (daily driver, 260k,
0 rattles, original clutch, driveshafts, wheels :)<BR></FONT></DIV>
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<DIV style="FONT: 10pt arial">----- Original Message ----- </DIV>
<DIV
style="BACKGROUND: #e4e4e4; FONT: 10pt arial; font-color: black"><B>From:</B>
<A title=Captnbr@aol.com href="mailto:Captnbr@aol.com";>Captnbr@aol.com</A>
</DIV>
<DIV style="FONT: 10pt arial"><B>To:</B> <A title=Scirocco-L@scirocco.org
href="mailto:Scirocco-L@scirocco.org";>Scirocco-L@scirocco.org</A> </DIV>
<DIV style="FONT: 10pt arial"><B>Sent:</B> Thursday, March 28, 2002 11:25
PM</DIV>
<DIV style="FONT: 10pt arial"><B>Subject:</B> Audi Multitronic</DIV>
<DIV><BR></DIV><FONT face=arial,helvetica><FONT lang=0 face=Arial size=2
FAMILY="SANSSERIF">Anyone have the 411 on how Audi's new multitronic
Transmission works. They say there is no gears and no shifting. So
how does it work when you floor it, does it just shoot up to redline and stay
there? I just don't understand it. Anyone want to enlighten
me?<BR><BR>Brian 86 16v<BR>98 Jetta GLX Vr6</FONT>
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