In order to move the car, the power of the engine must be transferred to the drive wheels. This transfer is done by the drivetrain. Its main parts are the following:
- The clutch
- The gearbox
- The drive shaft
- The differential
- The semiaxons
- The hubs of the wheels
Transmission system parts
Contributor
The clutch is located between the power input (crank volute) and the power input of the gearbox. Together with the clutches of four-wheel drive systems, we distinguish three clutch systems: friction (mechanical clutch), electric (electromagnetic) and hydraulic fluid (hydrodynamic). In more detail, there are dual-mass clutches, torque converters, electromagnetic clutches, electronically controlled automatic clutches and dual clutches.
Gearboxes
Gearboxes are so called because they essentially look like "boxes containing gears" (hence the English definition "gearbox"). Their purpose is to transfer power from the clutch to the differential and from there to the wheels. The transmission ratio is variable and is achieved by meshing gears of different diameters or with different numbers of teeth in order to keep the engine speed close to the effective range.
Automatic transmission maintenance by Special Car Service - Autofit.
Differential
The differential is the mechanism that allocates different rotational speeds to each wheel. Its function and position varies depending on whether the car has front, rear or all four-wheel drive. It allows different angular speeds and a corresponding distribution of torque according to the traction coefficient on the driving wheels.
Semi-axis
It is a hinged rotating axle that transfers the torque from the differential to the drive wheels. Semi-axles are present on the front or rear axle, depending on whether the drive is transmitted to the front, rear or all four wheels.
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