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DRIVETRAIN
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DRIVETRAIN
Drive train consists of Clutch, Transaxle andDrive shaft.
CLUTCH
The clutch in the TATA NANO is a
Single Plate Dry
Friction Diaphragm
type. It is mechanically actuated
by a cable connecting clutch pedal and the clutch
release lever.
The diaphragmspring in the clutch cover is of a tapering
finger type, which is a
solid ring
in the outside, with a
series of tapered fingers pointing inward.
The clutch disc, carrying
six torsional coil springs,
is positioned on the transmission input shaft with an
involute spine fit.
The clutch cover is secured to the flywheel, and carries
the diaphragm spring in such a way that when the
clutch release bearing is held back the peripheral edge
of the spring pushes on the pressure plate against the
flywheel (with the disc in between). This is the engaged
condition of the clutch.
Depressing the clutch pedal causes the release
bearing to advance and pushes on the tips of the
tapered fingers of the diaphragm spring. When this
happens, the diaphragmspring pulls the pressure plate
away from the flywheel, thereby interrupting the flow
of drive from flywheel through clutch disc to
transmission input shaft.
TRANSAXLE
The TATANano has a Transaxle TA-59 which is at the
rear of the vehicle along with the engine. The transaxle
has the shortest possible distance between the lay
shaft axis and input shaft axis (centre distance).
All the forward gears are synchromesh and the reverse
gear is sliding mesh.
The Vehicle speed is detected with a help of electronic
sensor which is fitted on the Differential of the
Transaxle.
The Gears are shifted with help of Push pull cables.
These Cables ensure that there is negligible vibration
transmitted to the Gear lever, making gear shifting a
delightful experience.
DRIVESHAFT
Driveshaft are flexible assemblies, which transmits
engine power to independently suspended wheels.
They consist of an inner and outer constant velocity
joint connected by an axle shaft. Both inner and outer
joints are completely flexible and can move in and
out.
INTRODUCTION