Automobile Transmission Systems

Features Includes:

  • 132 - 3D/2D Animation
  • 487 Pages of Content
  • 90 Lecture Hours
  • 236 Quiz
  • Suitable for All Technical University Syllabus

Course Description

This learning course comprises the topics of Transmission system and clutch, Gear box, Propeller shafts and Universal joints, Differential unit, Front and Rear axle, Wheels and tyres and Dynamics of moving vehicles.


  • Understand the working of Transmission system and clutch
  • Understand the construction and working of Gear box
  • To know about the Propeller shafts and Universal joints
  • Understand the working of Final drive and Differential unit
  • Understand the working of Front and Rear axle
  • To know about the wheels and tyres working and applications
  • Understand the concept of Dynamics of moving vehicles

Introduction to automobile transmission system - Automobile transmission system. Introduction to clutch - Why clutch is required? - Clutch - Functions of clutch - Principle of friction clutch - Types of clutches. Single plate clutch - Single plate clutch. Multi-plate clutch - Multi-plate clutch - Types of multi-plate clutch - Vehicles equipped with multi-plate clutch. Centrifugal clutch - Introduction - Construction - Working of Centrifugal Clutch - Advantages and disadvantages - Semi centrifugal clutch - Semi centrifugal clutch - Working - Diaphragm clutch - Construction details of diaphragm clutch - Working of diaphragm clutch - Advantages and disadvantages. Hydraulic operated clutch - Hydraulic operated clutch. Fluid coupling - Observe the following figure - Introduction to fluid coupling - Working of fluid coupling - Advantages and disadvantages of fluid coupling. Types of clutch used in various vehicle - Types of clutch - Fluid coupling Clutch.


Gear box -Gear - Types of gear - Why the gear box is required for the Automobile? - Functions of the gear box - Types of Gear Box - Parts of Gear box. Principle and operation of sliding mesh gear box - Sliding mesh gear box. Principle and operation of constant mesh gear box - Introduction - Construction of constant mesh gear box - Working principle. Principle and operation of synchromesh gear box -Synchromesh gear box - Introduction - Working principle. Flow of torque in synchromesh gear box - Synchromesh gear box - flow of torque. Principle and operation of Epi-cyclic gear box - Automatic transmission - Introduction - Epi - cyclic gear box working principle. Gear shifting mechanism and inter locking devices - Gear shifting mechanism - Steering column with gear selector mechanism - Interlocking mechanism - Overdrive mechanism and free wheel unit - Overdrive - Electric circuit of the overdrive - Free wheel unit. Transfer case - Transfer case. Torque converter - Torque converter - Torque converter operation. Automatic transmission system and gear boxes used in vehicles - Transmission - Automatic transmission - List of gear boxes used.


Propeller shaft and function of propeller shaft - Propeller shaft or drive shaft. Universal joints - Universal joints. Type universal joint - Cross and two yoke type - Ball and trunion Joint. Constant velocity type(Rzeppa) - Rzeppa joint. Constant velocity universal joints - Constant velocity universal joint necessity - Driving and driven shaft speeds analysis in universal joint - Use of two universal joints to obtain constant velocity. Double cardon and joint lobrojoint (Universal joint) - Double cardon joint - Lobro joint. Slip joint or sliding joint - Slip joint.


Final drive - Final drive - Construction of final drive. Types of final drive - Bevel, worm and worm Wheelgears - Types of final drive - Bevel gear - Worm and worm wheel. Hypoid gear and palloid gear final drive - Hypoid gear - Palloid gear. Differential gear - Need of differential - Function of differential. Construction of differential unit - Construction of differential unit - Working of differential gear unit. Differential lock and self-locking - Need of differential lock in vehicles - Self - Locking Differential. Four wheel drive - Four wheel drive - Working of four wheel drive system - Types of four wheel drive systems. Single reduction final drives - Single reduction final drive. Double reduction final drives- Double reduction final drives - Working of double reduction final drive. Transaxle - Transaxle.


Front axle and rear axle - Axle - Front axle - Classification of axles. Stub axle - Stub axle. Elliot and reverse Elliot type stub axle joints - Stub axle assembly - Elliot type stub axle - Reverse Elliot type stub axle - Comparison. Lamoine and reversed lamoine type stub axle - Lamoine type stub axle - Reversed lamoine type stub axle. Various loads acting on a rear axle - Various loads acting on a rear axle - Weight of the vehicle body - Driving thrust - Braking torque. The various loads and forces acting on a rear axle and their affects - Requirements of a rear axle - Semi-floating axle. Three quarter floating axle - Three quarter floating axle - Full floating axle - Types of axle housings. Types of drives - Types of drives - Torque tube drive.


Wheels - Wheels. Types of rims - Rim. Types of tyres - Tyres - Desirable tyre properties - Type of tyres - Tube and tubeless tyre - Construction of a tyre - Advantage over the conventional tubed tyres.Tyre tread pattern - Considerations in tread design - Different types of tread pattern - Tyre tread pattern features. Tyre inflation - Factors affecting tyre life. Tyre wear - Causes of tyre wear. Tyre rotation - Tyre rotation - Method of Tyre rotation for cars.


Various resistances encountered by vehicle and road resistance - Resistances encountered by a vehicle - Road resistance - Different types of road surfaces and rolling resistance.Gradient resistance - Gradient Resistance. Air resistance _ Air resistance. Tractive effort - Tractive effort - Problem 1 - Problem 2.