Project - Analysis of a practical automotive wiring circuit

1. BATTERY, IGNITION SWITCH, STARTER, AMMETER, GENERATOR, FUSE, JUNCTION BOX, IGNITION COIL, DISTRIBUTOR, CURRENT & VOLTAGE       REGULATOR.

2. A. BATTERY

 PURPOSE OF BATTERY: TO STORE & RELEASE ELECTRICAL CHARGE.

 WORKING OF BATTERY: IT CONVERTS CHEMICAL ENERGY TO ELECTRICAL ENERGY. THE CHEMICAL REACTION IN BATTERY INVOLVES FLOW OF   ELECTRONS FROM POSITIVE TO NEGETIVE ELECTRODE, THROUGH A CIRCUIT WHICH IS USED FOR DOING USEFUL WORK LIKE RUNNING MOTOR,   LIGHTS, ETC 

 B. STATER

 PURPOSE OF STATER: IT IS A DEVICE USED TO ROTATE CRANK OF ENGINE AND INITIATE ITS ENGINE OPERATION UNDER ITS OWN POWER.

 WORKING OF STATER: WHEN IGNITION IS TURNED ON THE STATER MOTOR ENGAGES AND TURNS THE ENGINE ON BY ALLOWING IT TO SUCK   IN AIR & FUEL MIXTURE.

 C. GENERATOR

 PURPOSE OF GENERATOR: IT IS USED TO GENERATE ELECTRICAL ENERGY BY USING MECHANICAL ENERGY. ITS DEVICE IS GENERALLY KNOWN   AS DYNAMO.

 WORKING OF GENERATOR: IT WORKS ON PRINCIPLE OF ELECTROMAGNETIC INDUCTON. WHERE A CONDUCTOR COIL WHICH IS WOUNDED TO A   CORE IS ROTATED RAPIDLY BETWEEN POLES. THUS GENERATING ELECTRIC CURRENT.

3. IF THE TOTAL LOAD OF THE BATTERY IS 10A. THEN FUSE RATING SHOULD BE APPROPRIATLEY SELECTED MORE THAN ITS LOAD.

 EITHER 12A OR 15A. WILL BE SUGGESTED. 

4. LOAD = 500W, ASSUMING TIME = 1 HOUR SOURCE = 12V

 => 500 x 1 = 500Wh 

 => 500/12 = 41.66 Ah 

 THUS MIN. 45 Ah BATTERY IS RECOMMENDED WITH A 12V DC SUPPLY. 

5. VEHICLES HORNS & FRONT LIGHTS ARE CONNECTED IN PARALLEL TO EACH OTHER BECAUSE IF INCASE OF DAMAGE OTHER ONE WILL WORK    AND ENSURE SAFTEY.

6. IGNITION DISTRIBUOR & METERS OF VEHICLE ARE CONNECTED IN SERIES TO SUPPLY SPARK TIMING FOR CORRECT IGNITION AND EXACT READINGS FOR SAFTEY.