Download - automobile-engineering-lec-1 R K Rajput.pdf
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Subject code-140202
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Content� Vehicle Classification and Layouts� Engine Types (based on Fuel used)� Transmission Types� Frames & Body� Performance of vehicle� Clutch� Brakes� Drive line and axles� Wheels and tires� Steering and front axle� Suspension system
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REFERENCE BOOKS� 1. Automotive mechanics by W. Crouse, TMH
� 2. Automobile Engineering, Vol-I Dr. Kripal singh
� 3. Motor vehicle by Newton and steed
� 4. Automobile engineering by GBS Narang
� 5. Vehicle Technology by Heinz Heizler
� 6. Automobile system by W. Judge
� 7. Automobile Engineering by R.K.Rajput
� 8. Automobile Engineering by R. K. Singhal
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CHAPTER-1
Vehicle Classification and Layouts
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Objectives
� After studying this unit, you should be able to
� define automobile engineering,
� classify the vehicles,
� list the various components of automobile, and
� describes the function of components of automobile.
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Automobile engieering� Automobile engineering is a branch of engineering
which deals with everything about automobiles andpractices to propel them.
� Automobile is a vehicle driven by an internalcombustion engine and it is used for transportation ofpassengers and goods on the ground. Automobile canalso be defined as a vehicle which can move by itself.
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CLASSIFICATION OF VEHICLES
� On the Basis of Load� Heavy transport vehicle (HTV) or heavy motor vehicle (HMV), e.g.
trucks, buses, etc.
� Light transport vehicle (LTV), e.g. pickup, station
wagon, etc.
� Light motor vehicle (LMV), e.g. cars, jeeps, etc.
� Wheels� Two wheeler vehicle, for example : Scooter, motorcycle, scooty, etc.
� Three wheeler vehicle, for example : Auto rickshaw, three wheeler
scooter for handicaps and tempo, etc.
� Four wheeler vehicle, for example : Car, jeep, trucks, buses, etc.
� Six wheeler vehicle, for example : Big trucks with two gear axleseach having four wheels.
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CLASSIFICATION OF VEHICLES� Fuel Used
� Petrol vehicle, e.g. motorcycle, scooter, cars, etc.
� Diesel vehicle, e.g. trucks, buses, etc.
� Electric vehicle which use battery to drive.
� Steam vehicle, e.g. an engine which uses steam engine. These engines are now obsolete.
� Gas vehicle, e.g. LPG and CNG vehicles, where LPG is liquefied petroleum gas and CNG is compressed natural gas.
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CLASSIFICATION OF VEHICLES� Body
� On the basis of body, the vehicles are classified as :
� Sedan with two doors
� Sedan with four doors
� Station wagon
� Convertible, e.g. jeep, etc.
� Van
� Special purpose vehicle, e.g. ambulance, milk van, etc.
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CLASSIFICATION OF VEHICLES� Transmission
� Conventional vehicles with manual transmission, e.g. car with 5 gears.
� Semi-automatic
� Automatic : In automatic transmission, gears are not required to be changed manually. It is automatically changes as per speed of the automobile.
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CLASSIFICATION OF VEHICLES� Position of Engine
� Engine in Front
� Most of the vehicles have engine in the front. Example : most of the cars, buses, trucks in India.
� Engine in the Rear Side
� Very few vehicles have engine located in the rear. Example : Nano car.
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LAYOUT OF AN AUTOMOBILE
CHASIS
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Componants of an automobile� Basic structure
� Engine
� Transmission system
� Auxiliaries
� Controls
� Superstructure
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Thank you!