The basic principle of ignition is that first the battery current passes through the primary winding of the ignition coil.
This winding consists of several turns of thick wire. Under the influence of current, a powerful magnetic field is formed around the ferromagnetic core of the ignition coil - ignition energy.
To create an ignition spark, the battery voltage to the ignition coil is turned off. This happens at the command of the control unit on the so-called «output stage».
When the current is turned off, the magnetic field in the ignition coil disappears. The following happens:
In the secondary winding, consisting of numerous turns of very thin wire, a high-voltage current pulse of several tens of thousands of volts arises.
This voltage is sent to the spark plug that is just next in line in the ignition order. The air/fuel mixture ignites and the engine continues to run. The electrical circuit closes again and a new cycle begins.
Visitor comments