Prob. 2:

The stick diagram of a 5-speed marmal transmission of a RWD vehicle is shown in the drawing.

The tire mndius of the vehicle is R (ft) and the final drive ratio is t,. The mambers of gear teeth are

labeled in the stick diagram.

Determine the transmission ratios in terms of the numbers of gear teeth for all

forward and reverse gears.

Determine the equivalent mass moment of inertia to be synchronized in a 2-3 shift

and in a 5-4 shift respectively, in terms of the gear tooth numbers and the mass

moments of inertia of the involved parts.

A 5-4 shift is to be made at a vehicle speed of V (mph) with a synchronization

time Ar. Assuming uniform angular velocity change during synchronization, find

the friction torque to be generated by the friction cones.

d) Determine the angles of rotation of the two friction cones during the

synchronization process in the shift in e). Also determine the angle of rotation of

the input shaft during the synchronization process.

5th

5th-Rev. Synchro

Input Shaft

N:

et the

Nc

Rak 1st 2nd 3rd

-Neo IVI 11²307

NOJAT

Nee

1-2 Synchro

NIC

Reverse Idler

Não

4th

output shaft

/

Counter Shaft

3-4 synchro.