Automatic transmission is a type of motor
vehicle transmission that automatically changes the gear ratios as the vehicle
start moving, thus freeing the driver from such hardships. The most common type
found in automobiles is hydraulic automatic transmission. But have you ever
think that what makes this automatic transmission possible? Such type of
transmission consists of several transmission components and systems that are particularly designed to work together in a
symphony of electrical, hydraulic and mechanical energy. Let’s get to know
about these components that make this transmission actually possible.
The
hydraulic system
This basically controls the clutches and
bands so as to control the planetary gear sets. For the proper functioning, it
uses special transmission fluid which is sent under pressure by the oil pump.
Planetary
Gear Sets
Planetary gear sets is one of the important
transmission components that
provides the several forward and reverse gear ratios.
Seals
and Gaskets
This component is used to prevent oil
leaking by keeping it at the place where it is supposed to be.
The
Torque Convertor
Another important component that makes the
automatic transmission possible is the torque converter that acts like a clutch
and stop the vehicle while the engine is still running.
The
Governor and the modulator
These components are used in the non –
computerized transmission and usually provide the inputs that instructs the
transmission when to shift.
The
Computer Controls
These are related to the computerized
transmissions and use the sensor on engine to detect the things such as
throttle position, vehicle speed, engine speed, engine load, switch position,
stop light etc.
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