Unit 1 Introduction

4 lecture hours

• History and classification of Two and Three wheeler vehicles
• Layout of different two and three wheeler vehicles
• Basic systems

Unit 2 Power Plant

10 lecture hours

• Classification of engines used for two and three wheeler vehicles
• working and types of two stroke engines
• Port timing diagrams
• Construction and working of four stroke engines
• selection criteria and design considerations for suitable engine for two and three wheeler vehicles
• Different types of fuel supply systems
• Construction and working of a carburetor
• different types of carburetor used for two wheeler engines
• Fuel injection system
• Types of lubricants
• Different types of lubrication system
• Scavenging process for two stroke engines
• Scavenging methods
• Basic engine cranking mechanism
• Different types of cranking mechanism for two and three wheeler vehicles

Unit 3 Transmission

8 lecture hours

• Layout of transmission system in two and three wheeler vehicle
• Types of primary reduction
• Requirements of clutch
• Types of clutch used for two and three wheeler vehicles
• Clutch release mechanism
• Types of gearbox for two and three wheeler vehicles
• different gear shifting mechanisms
• Continuous variable transmission (CVT)
• Chain drive
• Belt drive
• Shaft drive
• Cush drive

Unit 4 Steering and Suspension System

10 lecture hours

• Steering Geometry for two wheeler vehicles and Effects
• Steering Column Construction
• Handlebar–Types & Construction
• Suspension Requirements for two and three wheeler vehicles
• Design Considerations for Suspension System
• Spring & Shock Absorber Assembly
• Types of front suspension system
• types of rear suspension system
• Suspension damping control system

Unit 5 Brakes, Wheels and Tires

• Design Considerations for brakes
• Drum brake and Disc brake for two wheeler vehicles
• Brake control systems
• Anti-lock braking system for two wheeler vehicles
• Types of wheels
• Construction details of tires
• Types of tires 04 Subject Code: 3160212 w.e.f

Unit 6 Frame for Two Wheelers

4 lecture hours

• Design considerations for frame
• Components of frame
• Types of frames
• Frame material
• Body work
• Ergonomics considerations

Unit 7 Electrical Systems and Instruments

5 lecture hours

• Charging system
• Ignition system
• Lighting system
• Handlebar controls
• Instruments and indicators
• Recent developments in electrical system for two and three wheeler vehicles