Semi-automatic transmission is a transmission gearshift acceleration without stepping on / press the clutch, this system uses electronic sensors, processors and actuators to move the gear acceleration on the driver’s command. This system was developed to anticipate the traffic congestion in urban areas. Semi-automatic transmission is also used in luxury sports Cars such as used Porsche, Maserati, Ferrari is sometimes placed on the steering wheel to facilitate the acceleration of tooth movement.
Motor duck that circulated in Indonesia in the early 1970s until now generally use a semi-automatic transmission that is simple, motor duck is very popular at that time have only recently started to be produced