PRESENTATION ON TRANSMISSION SYSTEM

Presented by: Saad Mohammad Araf ID: WUB 11/13/32/1092

Department of Mechatronics EngineeringWorld University of Bangladesh.

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

Introduction:

Transmission system: Transmission system in a car helps to

transmit mechanical power from the car engine to give kinetic energy to the

wheels.

Objectives To understand the operational principles

and basic mechanisms of transmission system.

To know about different types of transmission system.

Methodology: Purposes by Transmission system:

• Provides the mechanical advantages.

• Provides speed variation as required.

Figure: Transmission system.

Methodology:Automobile Layout:

Front-wheel-drive layout. Rear-wheel-drive layout. Four-wheel-drive layout.

Methodology:Front-wheel-drive layout:

Figure: Toyota Celica(Front-wheel-drive).

Methodology:Rear-wheel-drive layout:  

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

Methodology:Four-wheel-drive layout:

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

Methodology:

Transmission System

Manual Transmission

Sliding

mesh

Synchromesh

Semi-automatic

transmission:

Automatic Transmission

Hydromanti

c

Torque

Converter

Types of Transmission system:

Figure: Types of Transmission system.

Methodology:Manual transmission system:

The vehicle is driven with the Assistance of gear shift and footClutch.

Components:

Clutch.Drive shaft.Differential.Drive wheel.

Figure: Manual Transmission shifting Leaver.

Methodology:Sliding Mesh Transmission System:

Figure: Sliding Mesh Transmission System.

Methodology:

Figure: Synchromesh Transmission System.

Synchromesh Transmission System:

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.

Methodology:

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

Automatic Transmission :

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.

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).

Methodology:

Figure: Differential.

How differential works:

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.

Methodology:Torque converter:

Uses in automatic transmission system.

Automatically engages or disengages engine to transmission.

Figure: Torque converter.

Methodology:

Figure: Drive shaft. Figure: Universal joints.

Universal joints:Drive shaft:

Discussion: MT offers rapid

acceleration, more direct control over the engine however AT is easier to drive.

Figure: Manual vs. Automatic Transmission .

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.

THE END

THANK YOU

ANY QUESTIONS?