Automobile Electrical and Electronics

Course objectives:

1. Knowledge in vehicle electrical and electronics components for engine operation.
2. Enhancing the knowledge of sensor and microprocessor applications in vehicle control systems.
3. Gaining information's on modern safety system in vehicle braking.

1. Introduction to automobile electrical and electronics system(2 hours)
1. Electrical system: purpose, functions
2. Electronics system: purpose, functions


2. Batteries and starting system(10 hours)
1. Purpose and functions of batteries
2. Different types of batteries
3. Principle, rating, testing and charging of batteries
4. Starting system: components, working principle, circuit diagram
5. Starter motors: types, characteristics
6. Capacity requirements
7. Drive mechanisms
8. Starter switches


3. Charging system(6 hours)
1. Purpose, functions of charging system
2. Charging system: components, working principle, circuit diagram
3. DC generators, alternators and their characteristics.
4. Control unit: cut out, voltage and current regulator, electronic regulators.


4. Lighting system and accessories(8 hours)
1. Purpose, functions of lighting system
2. Lighting system: components, circuit diagram
3. Vehicle interior lighting system
4. Vehicle exterior lighting system
5. Wiring requirements
6. Lighting design
7. Accessories: dashboard instruments, horn, wiper, power window, power door-lock


5. Electronic ignition system(8 hours)
1. Purpose, functions
2. Electronic ignition system: components, working principle and circuit diagram
3. Spark plugs and its types
4. Spark advance mechanisms
5. Different types of ignition systems


6. Electronic injection system(6 hours)
1. Purpose, functions
2. Electronic injection system: components, working principle and periphery diagram
3. Mono and multi point fuel injection system (MPFI): functions, components, working principle and periphery diagram
4. Common rail direct injection system (CRDI): functions, components, working principle and periphery diagram


7. Sensor, actuators and microprocessors in automobiles(15 hours)
1. Basic sensor arrangements.
2. Types of sensors: throttle position sensor, temperature sensor, mass air flow sensor, manifold absolute pressure sensor, oxygen sensor, speed sensor, knock sensor, accelerometer sensor, crank position sensor
3. Actuators: Idle speed control valve, fuel pump, solenoid valves, relays, fuel injectors, ignition
4. Electronic control unit: microprocessor and microcomputer
5. Controlled devices: voice warning system, travel information system, keyless entry system, automatic transmission system, electronic steering system.


8. Safety systems(6 hours)
1. Antilock braking system (ABS)
2. Air bag restraint system
3. Seat belt system
4. Road navigation system
5. Anti theft system.

Practical
Reference books

1. Judge. A.W., "Modern Electrical Equipment of Automobiles", Chapman & Hall, London, 1992
2. Young.A.P., & Griffiths.L., "Automobile Electrical Equipment", English Language Book Society & New Press, 1990
3. Spreadbury. F.G., "Electrical Ignition Equipment", Constable & Co Ltd., London, 1962
4. Robert N Brady "Automotive computers and Digital Instrumentation". A Reston Book, Prentice Hill, Eagle Wood Cliffs, New Jersey, 1988

Evaluation Scheme:
There will be questions covering all the chapters of the syllabus. The evaluation scheme for the questions will be as indicated in the table below.