AU3402 Automotive Chassis Syllabus:
AU3402 Automotive Chassis Syllabus – Anna University Regulation 2021
COURSE OBJECTIVES:
The objective of this course is to prepare the students to understand the basics of various vehicle frames, front axles, steering, suspension and braking systems used in automobile.
UNIT I INTRODUCTION, FRAME, STEERING SYSTEM
Types of Chassis layout, with reference to Power Plant location and drive, various types of frames, Loads acting on vehicle frame, Constructional details and materials for frames, Testing of frames, Types of Front Axles and Stub Axles, Front Wheel Geometry, Condition for True Rolling Motion of Wheels during Steering, Ackerman’s and Davis Steering Mechanisms, Steering Error Curve, Steering Linkages, Different Types of Steering Gears, Slip Angle, Over– Steer and Under–Steer, Reversible and Irreversible Steering, EPAS.
UNIT II PROPELLER SHAFT AND FINAL DRIVE
Effect of Driving Thrust, torque reactions and side thrust, Hotchkiss drive, torque tube drive, radius rods and stabilizers, Propeller Shaft, Universal Joints, Constant Velocity Universal Joints, Front Wheel drive, Final drive, different types, Double reduction and twin speed final drives, Multi–axled vehicles, Differential principle and types, Differential housings, limited speed differential, Differential locks.
UNIT III AXLES AND TYRES
Construction and Design of Drive Axles, Types of Loads acting on drive axles, Full – Floating, Three–Quarter Floating and Semi–Floating Axles, Axle Housings and Types – Lift axle, Dead axle, Types and Constructional Details of Different Types of Wheels and Rims, Different Types of Tyres and their constructional details.
UNIT IV SUSPENSION SYSTEM
Need for Suspension System, Types of Suspension Springs, Constructional details and characteristics of Single Leaf, Multi–Leaf, Coil, and Torsion bar, Rubber, Pneumatic and Hydro – elastic Suspension Spring Systems, Independent Suspension System, Shock Absorbers, Types and Constructional details.
UNIT V BRAKING SYSTEM
Theory of Automobile Braking, Stopping Distance Time and Braking Efficiency, Effect of Weight Transfer during Braking, Theory of Drum Brakes, Loading and Trailing Shoes, Braking Torque, Constructional Details of Drum Brake and its Activators, Disc Brake Theory, Types and Construction, Hydraulic Braking System, Mechanical Braking System, Pneumatic Braking System, Power–Assisted Braking System, Anti–Lock Braking System, Constructional Details.
COURSE OUTCOMES:
At the end of this course, the student will be able to
1. Identify the different types of frame and chassis used in Automotive.
2. Classify the different types of drivelines and drives used in Automotive.
3. Acquire knowledge about different types of front axle and rear axles used in motor vehicles.
4. Examine the working principle of conventional and independent suspension systems.
5. Apply knowledge on working principles of brake and its subsystems.
TEXT BOOKS:
1. Kirpal Singh, Automobile Engineering, Standard Publisher, New Delhi , 2017
2. K.K. Ramalingam, “Automobile Engineering”, sci-tech publication (India), 2011.
3. R.K. Rajput, A Text–Book of Automobile Engineering, Laxmi Publications Private Limited, 2015
REFERENCES:
1. Heinz Hazler, Modern Vehicle Technology, Butterworth, London, 2005.
2. Heldt P.M., Automotive Chassis, Chilton Co., New York, 1990
3. Newton Steeds and Garret, Motor Vehicles, 13th Edition, Butterworth, London, 2005.
4. N.K. Giri, Automotive Mechanics, Kanna Publishers, 2007
5. William. H. Crows – Work shop Manuel – 2005