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Course Code 18ME824 
CIE Marks 40
Teaching Hours /Week (L:T:P) 3:0:0
SEE Marks 60
Credits 03
Exam Hours 03

Course Learning Objectives:

  • The layout and arrangement of principal parts of an automobile
  • The working of transmission and brake systems
  • The operation and working of steering and suspension systems
  • To know the Injection system and its advancements
  • To know the automobile emissions and its effects on environment

Module - 1

ENGINE COMPONENTS AND IT’S PRINCIPLE PARTS: Spark Ignition (SI) & Compression Ignition (CI) engines, cylinder – arrangements and their relatives merits, Liners, Piston, connecting rod,
crankshaft, valves, valve actuating mechanisms, valve and port timing diagrams, Types of combustion chambers for S.I.Engine and C.I.Engines, methods of a Swirl generation, choice of materials for different engine components, engine positioning. Concept of HCCI engines, hybrid engines, twin spark engine, electric car. COOLING AND LUBRICATION: cooling requirements, types of cooling- thermo siphon system, forced circulation water cooling system, water pump, Radiator, thermostat valves. Significance of lubrication, splash and forced feed system.

Module - 2

TRANSMISSION SYSTEMS: Clutch-types and construction, gear boxes- manual and automatic, gear
shift mechanisms, over drive, transfer box, fluid flywheel, torque converter, propeller shaft, slip joints, universal joints,Differential and rear axle, Hotchkiss Drive and Torque Tube Drive. BRAKES: Types of brakes, mechanical compressed air, vacuum and hydraulic braking systems, construction and working of master and wheel cylinder, brake shoe arrangements, Disk brakes, drum brakes, Antilock –Braking systems, purpose and operation of antilock-braking system, ABS Hydraulic Unit, Rear-wheel antilock & Numerical

Module - 3

STEERING AND SUSPENSION SYSTEMS: Steering geometry and types of steering gear box-Power
Steering, Types of Front Axle, Suspension, Torsion bar suspension systems, leaf spring, coil spring,
independent suspension for front wheel and rear wheel, Air suspension system. IGNITION SYSTEM:
Battery Ignition system, Magneto Ignition system, electronic Ignition system

Module - 4

SUPERCHARGERS AND TURBOCHARGERS: Naturally aspirated engines, Forced Induction, Types of superchargers, Turbocharger construction and operation, Intercooler, Turbocharger lag. FUELS, FUEL SUPPLY SYSTEMS FOR SI AND CI ENGINES: Conventional fuels, alternative fuels,  normal and abnormal combustion, cetane and octane numbers, Fuel mixture requirements for SI engines, types of carburetors, C.D.& C.C. carburetors, multi point and single point fuel injection systems, fuel transfer pumps, Fuel filters, fuel injection pumps and injectors. Electronic Injection system, Common Rail Direct Injection System

Module - 5

AUTOMOTIVE EMISSION CONTROL SYSTEMS: Different air pollutants, formation of photochemical smog and causes. Automotive emission controls, controlling crankcase emissions, controlling evaporative emissions, Cleaning the exhaust gas, Controlling the air-fuel mixture, Controlling the combustion process, Exhaust gas recirculation, Treating the exhaust gas, Air-injection system, Airaspirator system, Catalytic converter. EMISSION STANDARDS: Euro I, II, III and IV norms, Bharat Stage II, III, IV norms. Motor Vehicle Act

Course Outcomes:

• To identify the different parts of an automobile and it’s working
• To understand the working of transmission and braking systems
• To comprehend the working of steering and suspension systems
• To learn various types of fuels and injection systems
•To know the cause of automobile emissions, its effects on environment and methods to reduce the emissions.


1. Automobile engineering, Kirpal Singh, Vol I and II (12th Edition) Standard Publishers
2. Automotive Mechanics, S. Srinivasan, (2nd Edition) Tata McGraw Hill 2003.


1. Automotive mechanics, William H Crouse & Donald L Anglin (10th Edition) Tata McGraw
Hill Publishing Company Ltd., 2007.
2. Automotive mechanics: Principles and Practices, Joseph Heitner, D Van Nostrand
Company, Inc
3. Fundamentals of Automobile Engineering, K.K.Ramalingam, Scitech Publications (India)
Pvt. Ltd.
4. Automobile Engineering, R. B. Gupta, SatyaPrakashan,(4th Edition) 1984.

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