Automobile Engineering Introduction & types

Automobile engineering is the one of the stream of mechanical engineering. It deals with the various types of automobiles, their mechanism of transmission systems and its applications.
Automobiles are the different types of vehicles used for transportation of passengers, goods, etc. Basically all the types of vehicles works on the principle of internal combustion processes or some times the engines are called as internal combustion engines. Different types of fuels are burnt inside the cylinder at higher temperature to get the transmission motion in the vehicles. Most of the automobiles are internal combustion engines vehicles only. Therefore, every mechanical and automobile engineer should have the knowledge of automobile engineering its mechanism and its various applications.

1. Automobile Engineering Introduction MR S P Udagave

2. CONTENT Introduction Vehicle Specification Classification Chassis layout

3. INTRODUCTION 3 Automobile engineering is the one of the stream of mechanical engineering. It deals with the various types of automobiles, their mechanism of transmission systems and its applications. Automobiles are the different types of vehicles used for transportation of passengers, goods, etc. Basically all the types of vehicles works on the principle of internal combustion processes or some times the engines are called as internal combustion engines. Different types of fuels are burnt inside the cylinder at higher temperature to get the transmission motion in the vehicles. Most of the automobiles are internal combustion engines vehicles only. Therefore, every mechanical and automobile engineer should have the knowledge of automobile engineering its mechanism and its various applications. DEFINITION Automobile is a vehicle driven by an internal combustion engine and it is used for transportation of passengers and goods on the ground. Automobile can also be defined as a vehicle which can move by itself. Examples : Car, jeep, bus, truck, scooter, etc.

4. Classification of automobiles: Based on purpose Based on capacity Based on fuel source Based on type of transmission Based on number of wheels Based on side of drive 4

5. Classification of automobiles 5 1. Based on purpose: Passenger vehicles  – These automobiles carry passengers – e.g : Buses, Passenger trains, cars Goods vehicles  – These vehicles are used for transportation of goods from one place to another. e.g : Goods lorry, goods carrier 2. Based on capacity : Heavy Motor Vehicle (HMV)  – Large and bulky motor vehicles – e.g : Large trucks, buses Light Motor Vehicle (LMV)  – Small motor vehicles – e.g : Cars, Jeeps Medium Vehicle  – Relatively medium sized vehicles – e.g : Small trucks, mini buses

6. 6 3. Based on fuel source: Petrol engine vehicles  – Automobiles powered by  petrol engine  – e.g : scooters, cars, mopeds, motorcycles Diesel engine vehicles  – Automotives powered by diesel  engine  – e.g : Trucks, Buses Gas vehicles  – Vehicles that use gas turbine as power source – e.g : Turbine powered cars Solar vehicles  – Vehicles significantly powered by solar power – e.g : Solar powered cars Hydrogen vehicles  – Vehicles that have  hydrogen as a power source  – e.g : Honda FCX Clarity Electric vehicles  – Automobiles that use electricity as a power source – e.g : Electric cars, Steam Engine Vehicles  – Automotives powered by steam engine – e.g : Steamboat, steam locomotive, steam wagon Hybrid Vehicles  – Vehicles that use two or more distinct power sources – e.g : Hybrid buses, hybrid cars like Toyota Prius, Honda Insight Hybrid Electric Vehicle (HEV )  – Automobile that uses both Internal Combustion Engine and Electric Power Source to propel itself – e.g : Jaguar C-X75 Classification of automobiles

7. 7 Classification of automobiles 4. Based on type of transmission : Automatic transmission vehicles  – Automobiles that are capable of changing gear ratios automatically as they move – e.g : Automatic Transmission Cars Conventional transmission vehicles  – Automotives whose gear ratios have to be changed manually Semi-automatic transmission vehicles  – Vehicles that facilitate manual gear changing with clutch pedal 5. Based on number of wheels: Two wheeler  – Automobiles having two wheels – e.g : Scooters, motorcycles Three wheeler  – Automotive having three wheels – e.g : Tricycles, Auto rikshaws , Tempos Four wheeler  – Vehicle having four wheels – e.g : Car, Jeep Six wheeler  – Automobile having six wheels used for heavy transportation – e.g : Large trucks, large buses 6. Based on the side of drive: Left hand drive automobile  – Vehicle in which steering wheel is fitted on the left hand side – e.g : Automobiles found in USA, Russia Right hand drive automobile  - Vehicle in which steering wheel is fitted on the right hand side – e.g : Automobiles found in India, Australia

8. 8 The main parts of and automobile are mounted on the chassis. The layout of these components on the chassis are different in different types of vehicles, i.e., cars, jeeps, trucks, buses, etc. The main difference in the layout of this chassis is the position of the engine . The engine is located at the front of the vehicle, followed by a clutch, gear box, propeller shaft, universals joints, differential, rear axle, etc. The radiator is located in front of the engine. LAYOUT OF CHASSIS