AUTOMOTIVE ENGINEERING (18ME752)

AUTOMOTIVE ENGINEERING

Course Code 18ME752
CIE Marks 40
Teaching Hours /Week (L:T:P) 3:0:0
SEE Marks 60
Credits 03
Exam Hours 03

Course Learning Objectives:

 To know the layout and arrangement of principal parts of an automobile.
 To understand the working of transmission and brake systems.
 To comprehend 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 the 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, engine positioning. Concept of HCCI engines, Hybrid engines, Twin spark engine, Electric car. COOLING AND LUBRICATION: Cooling requirements, Types of cooling- Thermosiphon system, Forced circulation water cooling system, Water pump, Radiator, Significance of lubrication, Splash and Forced feed system.

Module-2

TRANSMISSION SYSTEMS: Clutch-types and construction, gearboxes- manual and automatic, gear shift mechanisms, Overdrive, 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 the 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, Air-aspirator system, Catalytic converter. EMISSION STANDARDS: Euro I, II, III and IV norms, Bharat Stage II, III, IV norms. Motor Vehicle Act.

Important Links:

1. Click here to download the complete 5 modules notes

Course Outcomes: At the end of the course, the student will be able to:

 Identify the different parts of an automobile and its working.
 Understand the working of transmission and braking systems.
 Understand the working of steering and suspension systems and their applications.
 Selection and applications of various types of fuels and injection systems.
Analyze the cause of automobile emissions, their effects on the environment, and methods to reduce the emissions.

Question paper pattern:

 The question paper will have ten full questions carrying equal marks.
 Each full question will be for 20 marks.
 There will be two full questions (with a maximum of four sub-questions) from each module.
 Each full question will have a sub- questions covering all the topics under a module.
 The students will have to answer five full questions, selecting one full question from each module.

Textbooks

1 Automobile engineering Vol I and II Kirpal Singh Standard Publishers 12th Edition 2011
2 Automotive Mechanics S. Srinivasan Tata McGraw Hill 2003 2nd Edition

Reference Books

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