Auto Transmission System - ETA
The most common transmission systems that have been used for the automotive industry are manual transmission, automatic transmission, semi-automatic transmission, and continuously-variable transmission (CVT).
The first transmission invented was the manual transmission system. The driver needs to disengage the clutch (see Figure 4) to disconnect the power from the engine first, select the target gear, and engage the clutch again to perform the gear change. This will challenge a new driver. It always takes time for a new driver to get used to this skill.