AT1303 Automotive Chassis Syllabus

AT1303 AUTOMOTIVE CHASSIS 3 0 0 100

OBJECTIVE
All automobiles have important driveline and structural components. This subject deals with the functions and constructional details of all the chassis components.

UNIT – I INTRODUCTION 8
Types of chassis layout with reference to power plant locations and drives, vehicle frames, various types of frames, constructional details, materials, testing of vehicle frames, unitized frame body
construction.


UNIT – II FRONT AXLE AND STEERING SYSTEM 10
Types of front axles, construction details, materials, front wheel geometry: castor, camber, king pin inclination, toe-in. conditions for true rolling motion of wheels during steering, steering geometry, Ackermann and Davis steering system, constructional details of steering linkages, different types of steering gear boxes, steering linkages and layouts, turning radius, wheel wobble, power assisted steering, steering of crawler tractors.

UNIT – III DRIVE LINE 10
Effect of driving thrust and torque reactions, Hotchkiss drive, torque tube drive and radius rods, propeller shaft, universal joints, front wheel drive, different types of final drive, double reduction and twin speed final drives, differential principle, construction details of differential unit, non-slip differential, differential locks, differential housings, construction of rear axles, types of loads acting on rear axles, fully floating, three quarter floating and semi floating rear axles, rear axle housing, construction of different types of axle housings, multi axle vehicles.

UNIT – IV SUSPENSION SYSTEM 8
Need of suspension system, types of suspension, suspension springs, constructional details and characteristics of leaf, coil and torsion bar springs, independent suspension, rubber suspension, pneumatic suspension, shock absorbers.

UNIT – V BRAKING SYSTEM 9
Classification of brakes, drum brakes and disc brakes, constructional details, theory of braking, concept of dual brake system, parking brake, material, hydraulic system, vacuum assisted system, air brake system, antilock braking, retarded engine brakes, eddy retarders.

TOTAL : 45

TEXT BOOKS
1. Heldt.P.M.- “Automotive Chassis”- Chilton Co., New York- 1990
2. K.K.Ramalingam - “Automobile Engineering” – Scitech Publication, Chennai - 2001.

REFERENCES
1. Steed W - “Mechanics of Road Vehicles”- Illiffe Books Ltd., London- 1960
2. Newton Steeds and Garrot- “Motor Vehicles”- Butterworths, London- 2000.
3. Judge A.W- “Mechanism of the Car”- Chapman and Halls Ltd., London- 1986
4. Giles.J.G- “Steering, Suspension and tyres”- Iiiffe Book Co., London- 1988.
5. Crouse W.H- “Automotive Chassis and Body”- McGraw-Hill, New York- 1971.
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