Course Name: Certificate in Course in Automotive (Petrol & Diesel) Mechanics
(Reference from DGE&T/SDIS MES Module AUR101+AUR102+AUR203-208+SS101+Own Module+ Internship)
Entry Qualification: Minimum 10th Std. & and Above
Subject Competency: After completion of the training, participants would be able to join the rapidly growing Automobile industry (such as Bajaj, Hero, Honda, LML Scooters – Enfield, TVS Suzuki, Hero Honda, Yamaha, Kawasaki Bajaj, Honda Motor cycles – Kinetic Spark, TVS Mopeds etc) with efficiency & confidence and also able to open own service center.
Syllabus (Theory 15 Classes + Practical – 30 Classes) = Total 45 Classes
Module – I
Automotive Petrol Engines
Engine Construction and Operation: Constructional details of 4stroke and 2 stroke petrol engine. Comparison of four stroke and two stroke engine operation. Firing order and its significance.
Working principle: Otto cycle, actual and real engine cycles.
SI Engine Fuel System: Carburettor and its working principle. Requirements of an automotive carburettor; Starting, idling, acceleration circuits of carburettors. Mechanical and Electrical pumps, fuel feed system.
Spark Ignition System: Magneto and Battery ignition systems for S.I. Engines; Ignition timing. Combustion in SI engines: Stages of combustion, flame propagation, rate of pressure rise.
Abnormal combustion: Phenomena of knocking. Effect of engine variables on knock.
Combustion Chambers: Combustion chambers- Different types, Factor controlling combustion chamber design. Petrol Injection strategies: M.P.F.I. and Port fuelling techniques.
Cooling System: Need for cooling system. Types of cooling system, Liquid and air cooled systems. Thermo syphone and pressurised cooling system. Properties of coolants.
Lubrication System : Lubrication system, Mist lubrication system, Wet sump and dry sump lubrication, Forced feed lubrication system. Scavenging Scavenging methods Scavenging pumps, Scavenging pumps, Testing Performance test of 2-stroke and 4- stroke petrol engine. I.H.P , B.H.P Mechanical efficiency, Brake thermal efficiency . Performance curve i.e. Load v.s. efficiency, Speed v.s. efficiency etc.
Engine construction Construction of 2- stroke and 4 – stroke diesel engine Working principle Diesel cycle actual and real cycle., dual fuel cycle, comparison Otto, Diesel and Dual fuel cycles.
Diesel fuel:Ignition quality. Cetane number, Stoichometric, equation of combustion of diesel fuel.
Diesel Engine Combustion Concepts: Stages, heat release and ignition delay correlations. Abnormal combustion, factors affecting abnormal combustion. Knock in CI engines-comparison of knock in CI & SI engines Fuel air mixing: Importance of air motion-swirl, squish and turbulence-swirl ratio. period, factors affecting delay period.
Combustion Chambers- combustion chamber design objectives. Different types of combustion chamber. Direct and indirect injection chambers.
Fuel Injection System: Requirements, function of components, Jerk and distributor type Pumps. Fuel injector-types of injection nozzle, Spray characteristics, injection timing
Supercharging and Turbo Charging: Necessity and limitation, Charge cooling, Type of supercharging and turbo charging, Relative merits, matching of turbocharger.
Testing : Performance testing of 2-stroke and 4-stroke diesel engine I.H.P., B.H.P., Mechanical efficiency, Brake thermal Efficiency, Heat balance chart, Performance curve Variables effecting engine performance
MODULE – II (On Job Training /Internship)
TWO AND THREE WHEELERS
THE POWER UNIT
Two stroke and four stroke SI engines, merits and demerits. Symmetrical and unsymmetrical port timing diagrams. Types of scavenging processes – merits and demerits. Scavenging efficiency. Scavenging pumps.Rotary valve engine. Fuel system. Lubrication system. Magneto coil and battery coil spark ignition system.Electronic Ignition System. Starting system. Kick starter system.
CHASSIS AND SUB-SYSTEMS
Mainframe, types. Chassis and shaft drive. Single, multiple plate and centrifugal clutches. Gear box and gear controls. Front and rear suspension systems – Shock absorbers. Panel meters and controls on handle bar.
BRAKES AND WHEELS
Drum brakes, Disc brakes, Front and rear brake links layouts. Brake adjustment. Spoked wheel, cast wheel, Disc wheel. Disc types. Tyre and tube for two and three wheelers.
Case study of major Indian models of scooters, motor cycles and mopeds like Bajaj, Honda, LML Scooters – Enfield, TVS Suzuki, Hero Honda, Yamaha, Kawasaki Bajaj, Honda Motor cycles – Kinetic Spark, TVS Mopeds. Servicing and maintenance.
Case study of Indian models. Front engine and Rear engine Auto rickshaws. Pick up van, Delivery van and Trailer.
MODERN VEHICLE TECHNOLOGY TRENDS IN POWER PLANTS
Hybrid vehicles – Stratified charged & lean burn engines – Hydrogen engines – Battery vehicles – Electric propulsion with cables – Magnetic track vehicles.
SUSPENSION, BRAKES AND SAFETY
Air suspension – Closed loop suspension – antiskid braking system, Retarders, Regenerative traking – safety cage – air bags – crash resistance – passenger comfort
NOISE & POLLUTION
Reduction of noise – Internal & external pollution control through alternate fuels and power plants – Catalytic converters and filters for particulate emission.
VEHICLE OPERATION AND CONTROL
Computer Control for pollution and noise control and for fuel economy – Transducers and actuators – Information technology for receiving proper information and operation of the vehicle like optimum speed and direction.
SOFT SKILL TRAINING
Basic Computer knowledge, Personality Development, C.V. Preparation, Interview Skill, Caliber Enrichment Programme, and Training of I Q to S Q and Communication Skill , Business Correspondence etc