https://dennis.slgnt.eu/optiext/optiextension.dll?ID=A45A_zKtNDGbPtOY5zKNEgGzQCGwBIZqXdK8yy8EI42r7fnksLCZ2TNQIM3FlJyQAZmgSdKxVjJlgTAHLd5AS3LmD6a69

 

VW reportedly developing a more efficient manual gearbox ,with greater efficiency,maybe greener ??

The writer of that article obviously hasn't done their research too well, reading this quote:

Quote

Although they have two clutches, there’s no clutch pedal, as it would be too complicated for a driver to operate both.

Porsche have developed a manual version of the DSG for some of their models to avoid the need to produce separate gear boxes for manual/auto. The only thing that changes is the actuation method.

 

The gap between manual and torque converter (TC) auto has closed a lot in recent years, with lockup available on most, if not all, gears on a lot of units. It's possible at this point for an auto to be more efficient than a manual in the real world due to the ECU having better control over the shift process than most drivers, enabling it to maintain more efficient drivetrain performance. Beyond that, any difference is going to come down to choice of gear ratios.

 

Dual clutch transmissions like the DSG should be kicking the arse off any equivalent manual in efficiency, but gearing can compromise this. A good example is the Superb 2 where the CR170 TDI has shorter gearing on the DSG compared to the manual and suffers on economy/emissions as a result.

The drive for greater efficiency in ICE vehicles coupled with RDE monitoring will probably mean increasing use of automatic transmissions so that the human variable can be dialled out. The push towards hybridisation is likely to accelerate this move too since it's easier to accommodate the electric drive components with an auto.

1 hour ago, chimaera said:

Porsche have developed a manual version of the DSG for some of their models to avoid the need to produce separate gear boxes for manual/auto. The only thing that changes is the actuation method.

 

Where have you seen this? Sounds interesting but I can't find anything on it after a quick Google search.

 

Plenty of information on their PDK (DSG) dual-clutch box and latest regular manual gearboxes, but a PDK box with a manual gear lever and clutch pedal would be interesting.

I remember seeing it reviewed on Top Gear, and that one of the idiosyncrasies of it was that certain shifts couldn't be carried out e.g. 5th to 3rd as the linkages couldn't allow it. Like you though, I'm struggling to find anything on it on a quick search now.

Over 30 years ago i had a Citroen CX with a Servo Clutch.  2 pedals semi-automatic so a gear shifter.

I have driven a Porsche back then with the same setup.

 

VW now have the DSG's for the light hybrids and the plug in's so that sorts the DQ200 issue without VW ever having made DQ200's more reliable.

 

In Australia where the emissions are not important Vorsprung Durch Technik means go back to get to the future & has them fitting the 1.4 TSI's and an 8 speed traditional auto box.

http://briskoda.net/forums/topic/477576-new-australian-karoq-release-for-your-amusement

 

VW were doing their 10 speed auto and knocked that on the head.

Now they just have to get through another 12 years with what they have designed and are producing and keep their fingers crossed they shift loads of hybrids in that time and get all their EV's into production and selling.

They keep spinning on them, now it is Rugged 4x4 EV's, they just need to gets cars built, seems to be a bit of an issue for them.

 

Drive the right roads that get you someplace with enough downhills, have no passengers and you can get the MPG figures.

Pity the route is not reversed so that it is the long uphills and then the MPG published.

 

 

 

 

 

 

 

Edited 18 February, 20206 yr by Roottootemblowinootsoot

21 hours ago, Roottootemblowinootsoot said:

 

 

 

1:04 - Typical bloody Golf driver!!

Average speed all of 49 km/h (30 1/2mph) 

 

 

https://www.topgear.com.ph/features/feature-articles/hot-hatch-manual-vs-paddles-tguk-a2608-20201226