AT6402 Automotive Chassis | Important Questions | Question bank | Syllabus | Model and Previous Question papers | Download PDF

AT6402 Automotive Chassis  | Important  Questions
Syllabus	Click Here to Download
Part A Important Questions	Click Here to Download
Part B Important Questions	Click Here to Download | Set – 1 | Set – 2  |   >>
Question Bank	Click Here to Download
Full Study Material	Click Here to Download
Other Subject Important Questions	Click Here to Download

OBJECTIVES: 

• Study of the Constructional details and Theory of important drive line, Structural, Steering,
Braking and Suspension Systems of Automobiles. Problem–Solving in Steering Mechanism,
Propeller Shaft, Braking and Suspension Systems are to be done.

UNIT I LAYOUT, FRAME, FRONT AXLE AND STEERING SYSTEM

Basic construction of chassis, Types of Chassis layout, with reference to Power Plant location and
drive, various, types of frames, Loads acting on vehicle frame, Types of Front Axles and Stub Axles,
Front Wheel Geometry. Condition for True Rolling Motion. Ackerman’s and Davi’s Steering
Mechanisms, Steering Linkages, Different Types of Steering Gear boxes, Slip Angle, Over–Steer and
Under–Steer, Reversible and Irreversible Steering, Power Steering.

UNIT II DRIVE LINE, FINAL DRIVE AND DIFFERENTIAL

Driving Thrust and its effects, torque reactions and side thrust, Hotchkiss drive, torque tube drive,
radius rods and stabilizers, Propeller Shaft, Universal Joints, Constant Velocity Universal Joints, Final drive, different types of final drive, Worm and Worm wheel, straight bevel gear,spiral bevel gear and hypoid gear final drive. Differential principle. Constructional details of differential unit, Differential housings, Non–Slip differential, Differential locks.

UNIT III REAR AXLES, WHEELS, RIMS AND TYRES 

Construction of rear axles, Types of Loads acting on rear axles, Full –Floating, Three–Quarter
Floating and Semi–Floating Axles, Twist beam rear axle, Types, Multi axles vehicles. Wheels and
Rims, Types of Tyres and their constructional details.

UNIT IV SUSPENSION SYSTEM 

Requirement of Suspension System, Types of Suspension Springs, Constructional details and
characteristics of Single Leaf, Multi–Leaf spring, Coil and Torsion bar Springs, Rubber, Pneumatic
and Hydro – elastic Suspension Spring Systems, Independent Suspension System, Shock Absorbers,
Types and Constructional details of Leaf and Coil Springs.

UNIT V BRAKE SYSTEMS 

Need for Brake systems, Stopping Distance, Time and Braking Efficiency, Effect of Weight Transfer
during Braking, Classification of brakes , Braking Torque, drum brake and disc Brake Theory, Types
and Construction of Hydraulic Braking System, Mechanical Braking System, Pneumatic Braking
System, Power–Assisted Braking System, Servo Brakes, Retarders – antilock braking systems(ABS).

TOTAL : 45 PERIODS

OUTCOMES

• The students will understand the constructional, working principle of various sub system of an

automobile.

Also check :

AT6402 Automotive Chassis  Notes – Click here to Download 

AT6402 Automotive Chassis  Questions Papers – Click here to Download 

AT6402 Automotive Chassis  2 marks with answers – Click here to Download 

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