Subject Code & Name: SA25301 – Automobile Engineering Fundamentals
Regulation: R-2025
Semester: III (Third Semester)
Branch: B.E. Mechanical Engineering (Automobile) (Mech(Auto))
Credits / L-T-P: 3 Credits | L-T-P: 3-0-0
Course Objectives
- To introduce the fundamentals of automobile systems, including engine, transmission, control, and electrical systems.
- To develop skills in vehicle performance evaluation, maintenance practices, and application of emerging automotive technologies.
- To enable students to analyze, assess, and improve automotive systems for safety and efficiency.
Full Unit-wise Syllabus
Unit I – Introduction to Automobiles
History and development of automobiles – Classification and vehicle layout – Major components and their functions – Chassis and body construction – Vehicle frames and materials Aerodynamic considerations Vehicle performance parameters: tractive effort, gradient resistance, and power requirement, Introduction to Electric and Hybrid Vehicles.
Activities: Identifying and labelling major automobile components using cut-section models, Solving basic problems on tractive effort and power requirements.
Unit II – Engine and Transmission System
SI and CI engines – Engine construction and operation – Cooling and lubrication systems – Clutch: necessity, types, and working – Gearbox: manual and automatic types, gear ratio, and power flow – Propeller shaft, universal joints, differential, and axles – Drive layouts (FWD, RWD, AWD).
Activities: Demonstration of engine dismantling and assembly, Study of clutch and gearbox components; preparation of transmission layout sketch.
Unit III – Steering, Brakes and Suspension system
Steering system requirements, steering geometry, Ackermann principle, power steering. Suspension system objectives, coil and leaf springs, torsion bar, shock absorbers. Braking system: functions, mechanical and hydraulic brakes, disc and drum brakes, brake efficiency, concept of ABS.
Activities: Observation of steering geometry setup, Experimental evaluation of braking efficiency.
Unit IV – Vehicle Electrical System
Automotive electrical system layout – Battery and starter motor, alternator, ignition system – Lighting and instrumentation – Basic sensors and indicators, Overview of EV – Battery pack, Motor and its controller, EV Architecture .
Activities: Demonstration of starting and charging circuits, Simple wiring exercises and study of electric vehicle drive layout.
Unit V – Vehicle Maintenance and Future Trends
Vehicle maintenance: preventive, predictive, and breakdown types – Lubrication schedules – Troubleshooting common faults – Vehicle inspection and testing – Introduction to BS-VI emission norms – Modern trends: hybridization, electrification, lightweight materials, ADAS.
Activities: Preparation of vehicle maintenance schedule, Case study on emerging EV technologies.
Course Outcomes (COs)
- CO1: Explain and summarize automobile fundamentals _ _ including vehicle layout, engine systems, transmission control systems, electrical systems, maintenance practices, and emerging technologies.
- CO2: Apply and compute vehicle performance parameters analyze engine and transmission operations, and use maintenance practices for automotive systems.
- CO3: Analyze and differentiate various automobile systems such as steering, braking, suspension, electrical systems, and powertrain configurations under different operating conditions.
- CO4: Evaluate and assess vehicle performance, safety systems, maintenance strategies, and modern automotive technologies for efficient operation.
Assessment Pattern (Quick Note)
- Weightage: Continuous Assessment 40% | End Semester Examinations 60%
- Internal methodology: Quiz (5%), Assignments (25%), Review of GATE/ESE Questions (20%), Internal Examinations (50%)
Source: Official Anna University – B.E. Mechanical Engineering (Automobile) R-2025 Syllabus
Last Updated: September 2026
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