Arrange the following events in the exact sequence they occur during the operation of a conventional electronic distributor ignition system, from the initial trigger signal to the final spark delivery.
- 1The reluctor wheel aligns with the magnetic pickup stator, changing magnetic reluctance and generating an AC voltage signal.
- 2The ignition control module (ICM) receives the AC signal and interrupts the ground path for the ignition coil's primary winding.
- 3The sudden interruption of primary current causes the magnetic field surrounding the primary winding to rapidly collapse.
- 4The collapsing magnetic lines of force cut across the secondary winding, inducing a high-voltage surge via mutual induction.
- 5The high-voltage surge overcomes the dielectric resistance of the spark plug gap, ionizing the compressed air-fuel mixture.
Cevap
The correct sequence is: trigger signal generation, primary ground interruption, primary magnetic field collapse, secondary high-voltage induction, and spark gap ionization.
The ignition sequence relies on electromagnetic principles. It starts with a timing signal (pickup stator), which tells the control module to break the primary circuit's ground. This sudden loss of current causes the primary magnetic field to collapse. As this field collapses, it cuts across the secondary winding, inducing a massive voltage spike through mutual induction. This high voltage then travels to the spark plug, overcoming gap resistance to create a spark.
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Anahtar Kavram
Ignition circuit sequence of operation and electromagnetic induction