Rather, they use a torque converter technique, relying on gearbox oil to transfer Electrical power from your input shaft towards the gears. Desktops in the vehicle decide accurately when gears should be changed. Most transmissions in modern automobiles use synchromesh to synchronise the speeds from the enter and output shafts. https://automobile-gearbox63849.therainblog.com/33048314/automobile-gearbox-fundamentals-explained