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Audi Multitronic
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Isn't that the same as a CVT?
The tranny Subaru but in the 3 cylinder Justy when they sold it a few =
years back?
Basically the are like a go cart friction clutch with variable pulleys =
and a metal drive belt to give you a unlimited range of gears and no =
harsh shift points. Kinda neat.
Brian
----- Original Message -----=20
From: Allyn=20
To: Captnbr@aol.com ; Scirocco-L@scirocco.org=20
Sent: Thursday, March 28, 2002 11:00 PM
Subject: Re: Audi Multitronic
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 -----=20
From: Captnbr@aol.com=20
To: Scirocco-L@scirocco.org=20
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=20
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<DIV><FONT face=3DArial size=3D2>Isn't that the same as a =
CVT?</FONT></DIV>
<DIV><FONT face=3DArial size=3D2></FONT> </DIV>
<DIV><FONT face=3DArial size=3D2>The tranny Subaru but in the 3 cylinder =
Justy when=20
they sold it a few years back?</FONT></DIV>
<DIV><FONT face=3DArial size=3D2></FONT> </DIV>
<DIV><FONT face=3DArial size=3D2>Basically the are like a go cart =
friction clutch=20
with variable pulleys and a metal drive belt to give you a unlimited =
range of=20
gears and no harsh shift points. Kinda neat.</FONT></DIV>
<DIV><FONT face=3DArial size=3D2></FONT> </DIV>
<DIV><FONT face=3DArial size=3D2>Brian</FONT></DIV>
<BLOCKQUOTE dir=3Dltr=20
style=3D"PADDING-RIGHT: 0px; PADDING-LEFT: 5px; MARGIN-LEFT: 5px; =
BORDER-LEFT: #000000 2px solid; MARGIN-RIGHT: 0px">
<DIV style=3D"FONT: 10pt arial">----- Original Message ----- </DIV>
<DIV=20
style=3D"BACKGROUND: #e4e4e4; FONT: 10pt arial; font-color: =
black"><B>From:</B>=20
<A title=3Damalventano1@comcast.net=20
href=3D"mailto:amalventano1@comcast.net";>Allyn</A> </DIV>
<DIV style=3D"FONT: 10pt arial"><B>To:</B> <A title=3DCaptnbr@aol.com=20
href=3D"mailto:Captnbr@aol.com";>Captnbr@aol.com</A> ; <A=20
title=3DScirocco-L@scirocco.org=20
href=3D"mailto:Scirocco-L@scirocco.org";>Scirocco-L@scirocco.org</A> =
</DIV>
<DIV style=3D"FONT: 10pt arial"><B>Sent:</B> Thursday, March 28, 2002 =
11:00=20
PM</DIV>
<DIV style=3D"FONT: 10pt arial"><B>Subject:</B> Re: Audi =
Multitronic</DIV>
<DIV><BR></DIV>
<DIV><FONT face=3DArial size=3D2> ok, heres the =
deal, its a flat=20
steel belt riding on 2 'v' pulleys. the pulleys are split down the =
middle and=20
can seperate/close together (via hydraulics). each pulley does the =
opposite of=20
the other, so the belt rides on different portions of the pulleys, =
resulting=20
in a continuous change in tranny ratio.</FONT></DIV>
<DIV><FONT face=3DArial size=3D2> other car people =
have done=20
this, but they preload the belt a whole bunch to prevent slipping (it =
is metal=20
on metal after all), this results in low fuel efficiency/high wear on =
the=20
belt. the multitronic system tightens the belt pulleys based on sensed =
torque=20
at the pulley itself. this takes care of the inefficiency/high wear, =
since it=20
only loads the belt when it needs to.</FONT></DIV>
<DIV><FONT face=3DArial size=3D2> the multitronic =
can go full=20
auto (where engine climbs/stays at peak torque under full =
throttle=20
acceleration), or it can do a simulated 6-speed, performing step =
changes in=20
ratio based on driver input (kinda like tiptronic).</FONT></DIV>
<DIV><FONT face=3DArial size=3D2>that do it for ya?</FONT></DIV>
<DIV><FONT face=3DArial size=3D2>Al</FONT></DIV>
<DIV><FONT face=3DArial size=3D2></FONT> </DIV>
<DIV><FONT face=3DArial size=3D2>Allyn Malventano, ETC(SS), USN<BR>87 =
Rieger GTO=20
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=20
driver, 260k, 0 rattles, original clutch, driveshafts, wheels=20
:)<BR></FONT></DIV>
<BLOCKQUOTE=20
style=3D"PADDING-RIGHT: 0px; PADDING-LEFT: 5px; MARGIN-LEFT: 5px; =
BORDER-LEFT: #000000 2px solid; MARGIN-RIGHT: 0px">
<DIV style=3D"FONT: 10pt arial">----- Original Message ----- </DIV>
<DIV=20
style=3D"BACKGROUND: #e4e4e4; FONT: 10pt arial; font-color: =
black"><B>From:</B>=20
<A title=3DCaptnbr@aol.com =
href=3D"mailto:Captnbr@aol.com";>Captnbr@aol.com</A>=20
</DIV>
<DIV style=3D"FONT: 10pt arial"><B>To:</B> <A =
title=3DScirocco-L@scirocco.org=20
href=3D"mailto:Scirocco-L@scirocco.org";>Scirocco-L@scirocco.org</A> =
</DIV>
<DIV style=3D"FONT: 10pt arial"><B>Sent:</B> Thursday, March 28, =
2002 11:25=20
PM</DIV>
<DIV style=3D"FONT: 10pt arial"><B>Subject:</B> Audi =
Multitronic</DIV>
<DIV><BR></DIV><FONT face=3Darial,helvetica><FONT lang=3D0 =
face=3DArial size=3D2=20
FAMILY=3D"SANSSERIF">Anyone have the 411 on how Audi's new =
multitronic=20
Transmission works. They say there is no gears and no =
shifting. =20
So how does it work when you floor it, does it just shoot up to =
redline and=20
stay there? I just don't understand it. Anyone want to =
enlighten=20
me?<BR><BR>Brian 86 16v<BR>98 Jetta GLX Vr6</FONT>=20
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