A semi-automatic transmission is the place some of the Procedure is automated (generally the actuation from the clutch), but the driver's input is necessary to maneuver off from a standstill or to vary gears. Automated gearboxes appeared commercially from the 1940s, based on the Intercontinental Journal of Automobile Design, and https://automobilegearbox07383.dgbloggers.com/34591355/automobile-gearbox-options