The ignition system takes power from the 12V battery and sends it to spark the plugs in the engine. This spark lights the fuel and air mix inside the engine which what makes the car running. The ignition coil is the part that turns the battery low power into high power spark.
The Ignition Coil has two sets of coils:
Primary Coil that carries the low voltage current from the battery.
Secondary Coil that generates the high voltage current for the spark plugs.
The Distributor
Distributes the high voltage current to the right spark plug at the precise moment in the engine cycle.
It has components like:
Distributor points that open and close the circuit to the primary coil interrupting the current flow.
Rotor arm that rotates inside the distributor in order to direct the high voltage to the spark plugs.
How the car’s ignition starts the car?
- Turn the ignition switch.
- The ignition sends a signal to the starter.
- The starter turns the ngine’s crankshaft to get it moving.
- The moment that the engine turns the ignition system sends an electric spark to the spark plugs.
- The spark ignites the fuel in the engine’s cylinders which causing the engine to start running.
In modern cars the distributor has been replaced by an electronic ignition system which uses sensors and a computer to control the ignition timing more precisely.
