M.I.E.T. ENGINEERING COLLEGE/ DEPT. of Mechanical Engineering M.I.E.T. ENGINEERING COLLEGE (Approved by AICTE and Affiliated to Anna University Chennai) TRICHY – PUDUKKOTTAI ROAD, TIRUCHIRAPPALLI – 620 007 DEPARTMENT OF MECHANICAL ENGINEERING COURSE MATERIAL ME6602 - AUTOMOBILE ENGINEERING III YEAR - VI SEMESTER M.I.E.T. /Mech. / III/AE M.I.E.T. ENGINEERING COLLEGE/ DEPT. of Mechanical Engineering M.I.E.T. ENGINEERING COLLEGE (Approved by AICTE and Affiliated to Anna University Chennai) TRICHY – PUDUKKOTTAI ROAD, TIRUCHIRAPPALLI – 620 007 DEPARTMENT OF MECHANICAL ENGINEERING SYLLABUS (THEORY) Sub. Code : ME6602 Branch / Year / Sem : MECH/III/VI Sub.Name : AUTOMOBILE ENGINEERING Staff Name : M.KIRUBAKARAN ME6602 AUTOMOBILE ENGINEERING L T P C 3 0 0 3 OBJECTIVES: To understand the construction and working principle of various parts of an automobile. To have the practice for assembling and dismantling of engine parts and transmission system UNIT I VEHICLE STRUCTURE AND ENGINES 9 Types of automobiles, vehicle construction and different layouts, chassis, frame and body, Vehicle aerodynamics (various resistances and moments involved), IC engines –components- functions and materials, variable valve timing (VVT). UNIT II ENGINE AUXILIARY SYSTEMS 9 Electronically controlled gasoline injection system for SI engines, Electronically controlled diesel injection system (Unit injector system, Rotary distributor type and common rail direct injection system), Electronic ignition system (Transistorized coil ignition system, capacitive discharge ignition system), Turbo chargers (WGT, VGT), Engine emission control by three way catalytic converter system, Emission norms (Euro and BS). UNIT III TRANSMISSION SYSTEMS 9 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. UNIT IV STEERING, BRAKES AND SUSPENSION SYSTEMS 9 Steering geometry and types of steering gear box-Power Steering, Types of Front Axle, Types of Suspension Systems, Pneumatic and Hydraulic Braking Systems, Antilock Braking System (ABS), electronic brake force distribution (EBD) and Traction Control. UNIT V ALTERNATIVE ENERGY SOURCES 9 Use of Natural Gas, Liquefied Petroleum Gas, Bio-diesel, Bio-ethanol, Gasohol and Hydrogen in Automobiles- Engine modifications required –Performance, Combustion and Emission Characteristics of SI and CI engines with these alternate fuels - Electric and Hybrid Vehicles, Fuel Cell Note: Practical Training in dismantling and assembling of Engine parts and Transmission Systems should be given to the students. TOTAL : 45 PERIODS OUTCOMES: Upon completion of this course, the students will be able to identify the different components in automobile engineering. Have clear understanding on different auxiliary and transmission systems usual. TEXT BOOKS: 1. Kirpal Singh, “Automobile Engineering”, Vol 1 & 2, Seventh Edition, Standard Publishers, New Delhi, 1997. 2. Jain K.K. and Asthana .R.B, “Automobile Engineering” Tata McGraw Hill Publishers, New Delhi, 2002. M.I.E.T. /Mech. / III/AE M.I.E.T. ENGINEERING COLLEGE/ DEPT. of Mechanical Engineering M.I.E.T. ENGINEERING COLLEGE (Approved by AICTE and Affiliated to Anna University Chennai) TRICHY PUDUKKOTTAI ROAD, TIRUCHIRAPPALLI 620 007 – – DEPARTMENT OF MECHANICAL ENGINEERING Sub. Code : ME6602 Branch/Year/Sem : MECH/III/VI Sub Name : AUTOMOBILE ENGINEERING Staff Name : M.KIRUBAKARAN COURSE OBJECTIVE 1. To Identify the various parts of the automobile and understand their functions and materials 2. To make familiar with the various engine auxiliary systems 3. To discriminate the functioning of different types of transmission systems 4. Elucidate the functioning of steering, Brakes and suspension systems 5. Identify possible alternate energy sources for IC engine COURSE OUTCOMES 1. Understand the automobile components and its function 2. Understand the auxiliary systems 3. Understand the vehicle structure 4. Understand the environmental implications of automobile emissions 5. Understand the future developments in the automobile industry 6. Understand the recent trends in alternate fuels and automobile safety system Prepared by Verified By M.KIRUBAKARAN HOD AP/MECH Approved by PRINCIPAL M.I.E.T. /Mech. / III/AE M.I.E.T. ENGINEERING COLLEGE/ DEPT. of Mechanical Engineering M.I.E.T. ENGINEERING COLLEGE (Approved by AICTE and Affiliated to Anna University Chennai) TRICHY – PUDUKKOTTAI ROAD, TIRUCHIRAPPALLI – 620 007 DEPARTMENT OF MECHANICAL ENGINEERING UNIT - I VEHICLE STRUCTURE AND ENGINES Types of automobiles, vehicle construction and different layouts, chassis, frame and body, Vehicle aerodynamics (various resistances and moments involved), IC engines – components- functions and materials, variable valve timing (VVT). Automobile: Automobile means a self propelled vehicle used for transportation purposes on the ground. 1.1. Types of automobiles Automobiles are classified according to 1. Purpose 2. Capacity 3. Fuel used 4. Number of wheels 5. Drive of the vehicles 6. Body Style 7. Based on type of transmission 8. Based on the side of drive According to the: 1.1.1. Purpose According to the purpose the vehicles are classified as passenger vehicles and goods vehicles. The vehicle which carries passengers are called as passenger vehicles and those carries materials or goods are called as goods vehicles. Some of the examples of these vehicles are given below. 1. Passenger vehicles: Car, Bus, Jeep, Auto-rickshaw. 2. Goods vehicles: Truck. 1.1.2. Capacity According to the capacity the vehicles are classified as light motor vehicles and heavy motor vehicles. The light motor vehicles can able to carry light things and are also less in size and weight. But the heavy motor vehicles can carry very heavy materials and possess large mass and are bigger in size. 1. Light motor vehicles: Motorcycle, Car, Scooter. 2. Heavy motor vehicles: Bus, Tractor, Truck. 1.1.3. Fuel used On the basis of the fuel used the vehicles can be divided into petrol vehicles, diesel vehicles, electric cab, steam carriages and gas vehicles. 1. Petrol vehicles: Car, Motorcycle, Jeep, Scooter. M.I.E.T. /Mech. / III/AE M.I.E.T. ENGINEERING COLLEGE/ DEPT. of Mechanical Engineering 2. Diesel vehicles: Truck, Bus, Tractor, Car. 3. Electric cab: Fork lift, Battery truck. 4. Steam carriages: Steam road roller. 5. Gas vehicles: CNG vehicles. 1.1.4. Number of wheels According to the number of wheels the vehicles are classified as two, three, four, six and eight or more wheelers. 1. Two -wheeler: Motorcycles, Scooter, Moped. 2. Three -wheeler: Tempo, Road roller. 3. Four -wheeler: Car, Bus, Jeep, Tractor. 4. Six- wheeler: Truck, Bus, Gun carriage vehicle. 5. Eight- or more wheelers: Car transporting vehicle, Rocket transporter. 1.1.5. Drive of the vehicles According to the type of drive the vehicles are classified as single-wheel, two-wheel, four-wheel and six-wheel drive vehicle. 1. Single-wheel drive vehicle. 2. Two-wheel drive vehicle. 3. Four- wheel drive vehicle. 4. Six-wheel drive vehicle. 1.1.6. Body Style Body of a car decides the space available for passenger and language in the car. There are various type of body used in Indian market. And they are given below: 1. Hatchback: Hatchbacks are vehicles with a separate engine area, and passenger area (or two boxes), the luggage area is enclosed with the passenger area behind the rear seats. Example: Nano, Indica, Jazz, Punto etc. 2. Sedan/Notchback: Sedan are basically vehicles with an engine area, passenger area, and boot area (or three box), all separate. Example: Indigo Manza, Swift Dzire etc. 3. Estate/Station Wagon: Estates or Station wagons are modified saloon vehicles by combining the boot with passenger area & extending it till the roof. The boot area is significantly larger and does not have third row seating. This makes it convenient to carry big objects. Example: Indigo Marina, Octavia Combi etc. 4. Multi Purpose Vehicle (MPV) / Multi Utility Vehicle (MUV): MPV (Multi-Purpose Vehicles) or MUV (Multi Utility Vehicles) can have the engine, passenger area and boot area enclosed together or they can have the engine area separate and the passenger and boot area enclosed. MUV/MPV can also have third row of seating. These vehicles are two wheel drive. Example: Sumo Grande, Tata Tavera, Tata Innova etc. M.I.E.T. /Mech. / III/AE M.I.E.T. ENGINEERING COLLEGE/ DEPT. of Mechanical Engineering 5. Sport Utility Vehicle (SUV): These vehicle have large tyres, higher seating, higher ground clearance. The engine area is separate and the passenger and boot area are enclosed together. These vehicles are either equipped with 4 wheel drive or has as an option of 4 wheel drive. Example: Safari, Scorpio, Gypsy, Fortuner. 6. Pick-Up Truck: These vehicles have large tyres, higher seating capacity, and higher ground clearance. The engine area is separate and the passenger compartment available in single or double cab configurations. Also, luggage loading bay is available behind the passenger compartment. These vehicles are either equipped with 4 wheel drive or has as an option of 4 wheel drive. Example: Xenon, Scorpio Getaway etc. 7. Van: The engine is placed below the passenger area. Vans can also have Third row of seating. They are also taller and generally more spacious. Example: Winger, Ace Magic, Omni etc. 1.1.7. Based on type of transmission: 1. Automatic transmission vehicles – Automobiles that are capable of changing gear ratios automatically as they move – e.g: Automatic Transmission Cars. 2. Conventional transmission vehicles – Automotives whose gear ratios have to be changed manually 3. Semi-automatic transmission vehicles – Vehicles that facilitate manual gear changing with clutch pedal 1.1.8. Based on the side of drive: 1. Left hand drive automobile – Vehicle in which steering wheel is fitted on the left hand side – e.g: Automobiles found in USA, Russia 2. Right hand drive automobile - Vehicle in which steering wheel is fitted on the right hand side – e.g: Automobiles found in India, Australia 1.2. Vehicle construction and different layouts - Chassis, frame and body M.I.E.T. /Mech. / III/AE M.I.E.T.
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