ABSTRACT
A transmission system gearbox is required because the power of an engine consists of speed and torque. In stop-and-go traffic, the eClutch allows drivers using manual transmission to use first gear without using the clutch. The transmission gearbox on all modern cars is a sophisticated component. However, the principle of operation does not change because it is based on simple gear ratios and clutch operation. A converter lock-up clutch allows slip-free and hence loss-free transmission of the engine torque to the automatic transmission. The ability to lock up the torque converter has been used for some time even on vehicles with more conventional automatic transmission. Electrohydraulic or electric clutch operation is used on direct shift gearboxes. Propshafts are used on rear- or four-wheel drive vehicles. Wheel bearings must allow smooth rotation of the wheel but also be able to withstand high stresses such as when cornering.
