Electrical system of a car

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					Electrical system of a car
Mónica Marco Gamón

Components
• • • • • • • A storage battery Generator Starting (cranking) motor Lighting system Ignition system Controls Accessories

STORAGE BATTERY
This is generally of the wet-cell type. It uses a liquid electrolyte and can be recharged many times. It consists of several cells connected in series. Each cell contains a number of alternately positive and negative plates separated by the liquid electrolyte. The positive plates of the cell are connected to form the positive electrode; similarly, the negative plates form the negative electrode.

GENERATOR
The generator is the basic source of energy for the various electrical devices of the automobile. An alternator that is belt-driven from the engine crankshaft is also used at times. The design is usually an alternating-current type with built-in rectifiers and a voltage regulator to match the generator output to the electric load and also to the charging requirements of the battery, regardless of engine speed.

STARTING MOTOR
The starting motor drives a small spur gear, which is so arranged that it automatically moves into mesh with gear teeth on the rim of the flywheel as the startingmotor armature begins to turn. As soon as the engine starts, the gear is disengaged, which prevents the starting motor from getting damaged due to overspeeding. The starting motor is designed for high current consumption and delivers considerable power for its size for a limited time.

LIGHTING SYSTEM
- Daytime running lamp - Headlamp - Headlight styling - Hidden headlamps - High intensity discharge - Retroreflector -Sealed beam -Trafficator s -License plat light -Distance sensor -Idiot light -Malfunctio n Indicator

IGNITION SYSTEM
The ignition system of an internal-combustion engine is an important part of the overall engine system that provides for the timely burning of the fuel mixture within the engine. All conventional petrol (gasoline) engines require an ignition system. It consists of the spark plugs, coil, distributor, and battery, and provides the spark to ignite the air-fuel mixture in the cylinders of the engine.

CONTROLS
 Bowden cable  Cruise control  Electronic throttle control  Gear stick  Hand brake  Manettino dial  Steering wheel  Throttle

ACCESORIES
Some of the typical accesories are: Backup camera, Buzzer, Car computer, Fuel gauge, Navigation system, Odometer, Speedometer, Tachometer, Trip computer, Aircooling, Antifreeze, Radiator, Thermostat, car alarm, Airbag, Automatic seatbelt, Car audio, Car phone, Center console, Dashboard, Motorola connector, Power window…


				
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