Understanding How Auto Transmissions Work



Auto transmissions use a complex system of gears and inputs. The bands and clutches inside the transmission connect the individual inputs. When a vehicle accelerates or decelerates, the car’s transmission changes gear and transfers power to the wheels. Moreover, an automatic transmission can shift between two different gear ratios. See this site to buy Mercedes spare parts in Dubai online.

Planetary gear train:

The planetary gear train is a part of auto transmission. It has two sets of gear: a ring gear and a planet gear. The ring gear gives power to the other gears, which then rotate the carrier shaft faster. The reverse motion is determined by the radial distance between the center of the ring gear and the planet gears. The engine supplies power to the first ring gear.

Clutch pistons:

A key aspect of auto transmissions is the clutch piston. These pistons control the torque transmitted from the engine to the wheels. The pistons themselves must be able to apply the clutch without overextending themselves. The optimum design should maximize the clutch pistons’ pressing force against the disk pack while maintaining an acceptable heat capacity and friction pressure level. The material properties of the piston must also be considered.

Hydraulic circuits:

Hydraulic circuits in auto transmissions are a central part of your vehicle’s transmission. They are responsible for engaging and disengaging torque-transmitting devices and lubricating the moving parts. A manual valve typically feeds these circuits.


Drive shafts are integral parts of the auto transmission system. They are responsible for transmitting power from the engine to the wheels and must withstand various stresses. These stresses are often caused by torque, which drives the shaft to bend in one direction or another. To minimize the wear on the drive shaft, the lubricating grease is usually applied to the shaft.

Requirements for locking the transmission:

The Department of transportation and national highway traffic safety administration has issued amendments to the Federal motor vehicle safety standards (FMVSS). The new requirements will protect drivers by requiring that drivers lock the auto transmission when shifting from one gear to another. If you are considering maintenance of vehicle transmission, this information will be helpful for you.

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