Dualogic is just an automatic gearbox with sequential manual transmission.
In auto mode, its just like any other auto gearbox.
In manual mode, you move the gearstick up (+) gear, and down (-) gear, just like a tiptronic. To switch between the auto and manual modes, you just have to push it to the left and release.
Its clutchless & there are only two pedals; just push the gearstick either up or down, no need to press/step on anything.
There's nothing really special about this, but Fiat claims that the DL allows for better fuel economy and performance at the same time.
And these are the different Names which manufacturers claim! (No big difference, just like DICOR, CRDI & CRDe)
- 2-tronic, EGC (Electric Gearbox Control) or Piloted Manual - Peugeot
- Twin Clutch SST - Mitsubishi
- Dual clutch transmission (DCT), a generic term - Volkswagen Group, Bugatti, Koenigsegg
- Direct-Shift Gearbox (DSG) - Volkswagen Group: SEAT, Skoda Auto, Volkswagen
- S tronic - Audi
- Dualogic - Fiat
- Duo Select - Maserati
- Durashift EST - Ford
- E-Gear - Lamborghini
- Easytronic - Opel / Vauxhall
- MultiMode (MMT), SMT (Semi Manual Transmission) - Toyota
- PDK (Porsche Doppelkupplungen)/Sportomatic (Clutchless manual pre-1969) - Porsche
- Pleasure Shift - Saleen
- Quickshift - Renault
- Retrotek, MasterShift, Twist Machine, etc. - Detroit's Big 3
- Sensonic or ACS - Saab
- Selespeed - Alfa Romeo, Fiat
- SensoDrive or EGS (Electronic Gearbox System) or BMP - Citroen
- SMG/SSG - BMW
- Speedgear - Fiat
- Sportshift - Aston Martin
- MasterShift - Aftermarket
Here are few images from my drives.
Mitsubishi Outlander
Skoda Laura
Volkswagen Beetle
Hope all your doubts are cleared now