The new automated manual transmission employs dual clutches to realize power transmission efficiencies on a par with a normal manual gearbox while also allowing slick and swift shifting.
By allowing drivers all the abilities to shift rapidly up and down through the gears, the Twin Clutch SST delivers satisfying acceleration while also returning superior fuel mileage thanks to its high-efficiency power transmission mechanism. The Twin Clutch SST puts odd (1st, 3rd, 5th) and even (2nd, 4th and 6th) gears on separate input shafts, each connected to an individual clutch. With both clutches under precise system control, this arrangement allows lightning-fast, smooth and lag-free gear changes with no interruption in power delivery. Using clutches instead of a torque converter to transmit power makes the Twin Clutch SST simpler in structure and reduces power transmission losses for higher transmission efficiency that leads to improved fuel mileage. The new transmission also includes three operating modes tailored to different situations.
Twin Clutch SST allows the driver to switch between three shifting programs. For use around town and other normal driving situations the Normal mode program uses relatively low-speed shift points to deliver unobtrusive shifting for maximum comfort together with optimum fuel economy. If you want to drive in the mountains or drive which requires a lot of breaking then the Sport mode program uses higher shift points and quicker shifting to deliver instant throttle response that instils in the driver a closer man/machine relationship. Lastly there is the S-Sport mode program that keeps the engine turning at higher revs while allowing lightning-fast shifting.