The document discusses the transmission system in vehicles, outlining its purpose of transmitting mechanical power from the engine to the wheels. It covers various types of transmission systems, such as manual, automatic, and continuously variable transmissions, detailing their components and functioning. The conclusion suggests that significant changes are anticipated in the automotive industry based on the findings of this study.

2. Presented by:
Saad Mohammad Araf
ID: WUB 11/13/32/1092
Department of Mechatronics Engineering
World University of Bangladesh.

3. Contents:
 Introduction.
 Objectives.
 Methodology.
 Discussion.
 Conclusion.

4. Introduction:
Transmission system:
Transmission system in a car helps to
transmit mechanical power from the car
engine to give kinetic energy to the wheels.

5. Objectives
 To understand the operational principles
and basic mechanisms of transmission
system.
 To know about different types of
transmission system.

6. Methodology:
Purposes by Transmission
system:
• Provides the
mechanical
advantages.
• Provides speed
variation as required.
Figure: Transmission system.

7. Methodology:
Automobile Layout:
 Front-wheel-drive layout.
 Rear-wheel-drive layout.
 Four-wheel-drive layout.

8. Methodology:
Front-wheel-drive layout:
Figure: Toyota Celica(Front-wheel-drive).

9. Methodology:
Rear-wheel-drive layout:
Figure: Mclaren 650s 2015 Houston(Rear-wheel-drive).

10. Methodology:
Four-wheel-drive layout:
Figure: Mercedes-Benz G63 AMG 6x6 (Four-wheel-drive).

11. Methodology:
Transmission System
Manual
Transmission
Sliding mesh Synchromesh
Semi-
automatic
transmission:Automatic
Transmission
Hydromantic Torque
Converter
Types of Transmission system:
Figure: Types of Transmission system.

12. Methodology:
Manual transmission system:
The vehicle is driven with the
Assistance of gear shift and foot
Clutch.
Components:
Clutch.
Drive shaft.
Differential.
Drive wheel.
Figure: Manual Transmission shifting Leaver.

13. Methodology
:Sliding Mesh Transmission System:
Figure: Sliding Mesh Transmission System.

14. Methodology:
Figure: Synchromesh Transmission System.
Synchromesh Transmission System:

15. Methodology:
Automatic transmission system:
The gears are changed
automatically corresponding with
vehicle’s speed.
Components:
Torque Converter.
Governor.
Differential.
Drive shaft.
Drive wheel.
Planetary gears.
Figure: Automatic Transmission shifting Leaver.

16. Methodology:
Figure: Automatic Transmission gear-box.
Figure: Torque Converter.
Automatic Transmission :

17. Methodology:
Semi- Automatic Transmission:
 Smoother shifting/driving
experience.
 No energy losses due to
slippage in torque
converters, or during the
time lag of manual shifts.
 Very expansive.
Figure: Semi automatic transmission gear box.
Figure: Dual clutch shifter.

18. Methodology:
Continuously variable transmission (CVT):
 Constant, step less acceleration
throughout the engine’s optimum
operating range.
 Provides a comfortable ride by
eliminating “shift shock”
 Better fuel efficiency.
 Faster response to changing driving
conditions such as variations in throttle
and engine speed.
 Eliminates energy losses associated with
torque converters.
 Unable to drive on off-road. Figure: Continuously variable
transmission gear box(CVT).

19. Methodology:
Figure: Differential.
How differential works:

20. Methodology:
Clutch:
 It acts as a bridge
between engine and
transmission.
 Engages or
disengages power
flow in between
engine and
transmission system
as per required.
Figure: Clutch.

21. Methodology:
Torque converter:
 Uses in automatic
transmission
system.
 Automatically
engages or
disengages engine
to transmission.
Figure: Torque converter.

22. Methodology:
Figure: Drive shaft. Figure: Universal joints.
Universal joints:Drive shaft:

23. Discussion:
MT offers rapid
acceleration,
more direct
control over the
engine however
AT is easier to
drive.
Figure: Manual vs. Automatic Transmission
.

24. Conclusion:
A new shape for the world auto industry emerges from this
far-ranging study, which reveals a path of development quite
different from those widely forecast and leaves no doubt that
the changes ahead will be dramatic.

26. ANY
QUESTIONS?