Unit 1 Introduction

3 lecture hours

• Automobile classification and specification
• Automobile chassis: General layout
• types of layout and its arrangement
• Body construction type and materials
• Functional requirements of vehicle body
• Body trim and fittings

Unit 2 Road Load Analysis

6 lecture hours

• Vehicle Loads: Forces acting on vehicle in motion
• Transmission efficiency
• Factors affecting it
• Rolling resistance
• Grade resistance
• tractive force with uniform speed and with acceleration of vehicle
• Traction characteristic
• Dynamic factor
• weight transfer due to various resistance acting on a vehicle in motion
• Stability of a vehicle in motion around the curve

Unit 3 Power Transmission systems

10 lecture hours

• Clutch: Constructional features and working of single plate
• multi plate
• semi centrifugal and centrifugal clutch
• Calculation of surface area and number of driving and driven plates
• Transmission gear box: sliding mesh
• constant mesh
• synchromesh gearboxes and four wheel drive
• Propeller shaft and Final drive: Propeller shaft
• universal joints
• Hotchkiss & Torque tube Drives
• front drive shaft types and its construction and working
• Differential gear box, rear axle
• Automatic Transmission and CVT Fault and diagnosis of power transmission system

Unit 4 Axle, Suspension and Steering System

• Axle: Classification
• types of front axle
• Components and their functions
• types of rear axle and application
• Suspension: Principle
• Types of suspension systems
• Functional requirements of suspension systems
• types and Constructional features of Front Suspension and Rear suspension system
• Spring types
• Rubber and Air suspensions
• Factors affecting design and selection
• Analysis of Suspension system: Mobility
• kinematic/graphical analysis
• Roll centre analysis and force analysis
• Steering System: Steering Layout
• types of steering gears
• steering linkages
• steering mechanism
• definitions, and significance of camber
• caster king
• pin inclination
• toe in and toe 8 Subject Code: 3161920 W.e.f 2018-19 out on turn
• Measurement and adjustment of various steering system layouts
• steering ratio
• under steering and over steering
• power assisted steering
• steering geometry
• wheel alignment, and diagnosis of fault

Unit 5 Brake system

4 lecture hours

• Components and configurations
• Fundamentals of braking: braking distance
• braking efficiency
• weight transfer
• wheel skidding
• Brake proportioning and adhesion utilization
• Hydraulic brake system
• Power assisted brakes
• ABS and EBD: Working principles
• Features and advantages
• Fault and diagnosis

Unit 6 Wheel and Tyres

3 lecture hours

• Types of wheels
• types of tyres
• tyre construction
• constituents of tyre
• tyre tread pattern
• tyre pressure and wear
• tyre properties
• tyre size
• tyre maintenance

Unit 7 Electrical, Electronics and Safety systems

7 lecture hours

• Engine control Unit
• Monitoring and Instrumentation
• Safety interlocks and alarms
• Lighting and other circuits
• fuel gauge
• temperature gauge
• speedometer and odometer
• Active and Passive Safety systems
• Seat belt
• Air bag, ACD, Electronic Stability Control (ESC)
• Tire Pressure Monitoring System (TPMS)
• Lane Departure Warning System (LDWS)
• Adaptive Cruise Control (ACC)
• Driver Monitoring System (DMS)
• Blind Spot Detection (BSD) and Night Vision System (NVS)

Unit 8 Modern Automobiles

• Layout and components of Electric and Hybrid Vehicle
• Types of Hybrid vehicles
• Electric Motors
• Regenerative Braking. 4 A
• List of Experiments 1
• Study of different types of layout of Automobiles. 2
• Study of different types of Transmission gearbox 3
• Fault and diagnosis of power transmission system . 4
• Study of constructional features of Front and rear suspension system. 5
• Study of Hydraulic braking system. 6
• Study of safety features of the automobile system. 7
• Study of Electronic system of Automobiles. 8
• Study of Hybrid vehicles