[Mgs] wanted - now DSG 7 speed

[Dan DiBiase]

Actually, Hans, Tiptronic is the regular Audi automatic transmission with manual shift feature. Their version of the
DSG was called S-Tronic. Not sure if it still is, or if they just call it DSG now as well. But Tiptronic isn't it....

 Dan D
Central NJ USA
'76 MGB Tourer
'65 MGB Tourer (Project)
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________________________________
From: Hans Duinhoven <h.duinhoven at planet.nl>
To: ccrobins at ktc.com; Paul Hunt <paul.hunt1 at blueyonder.co.uk>
Cc: mgs at Autox.Team.Net
Sent: Sun, January 31, 2010 2:24:05 PM
Subject: Re: [Mgs] wanted - now DSG 7 speed

I never studied the DSG principles, but http://en.wikipedia.org/wiki/Direct-Shift_Gearbox gives a nice explanation. BTW Audi calls this gearbox Tip-Tronic


Cheers,

Hans
----- Original Message ----- From: "Charley & Peggy Robinson" <ccrobins at ktc.com>
To: "Paul Hunt" <paul.hunt1 at blueyonder.co.uk>
Cc: "Hans Duinhoven" <h.duinhoven at planet.nl>; <mgs at Autox.Team.Net>
Sent: Saturday, January 30, 2010 10:28 PM
Subject: Re: [Mgs] wanted - now DSG 7 speed


> The Prius will sort of freewheel with the engine shut down at speed below ~40 mph.  It's called "gliding" by those who know how to extract this behavior from the car.  It isn't really freewheeling, it's a matter of MG1 spinning at a speed that allows the engine to cease rotation - possible in a 3-way planetary gearset.
> 
> Have you read up on how the DSG gearbox(s) work?
> 
>   CR
> 
> On 1/30/2010 10:31 AM, Paul Hunt wrote:
>> Interesting if the designers have decided to freewheel and keep the engine ticking over rather than keep the momentum of the car spinning the engine and shut off the fuel completely, it implies the former is more economical. Mind you if you have stop/start then it could do both i.e. use no fuel *and* have minimum drag.  The computer restarting the engine and matching revs to road speed as well as engaging the appropriate gear and clutch.
>> 
>> PaulH.
>> 
>> ----- Original Message -----
>>> ... This gearbox gets into a "free" coasting state whenever the speed is over 20 Km/h or higher and the throttle pedal is fully released.
>>> But whenever I apply the brakepedal, the DG box immediately engages the right gearnumber for the current speed.
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