Dwell Time in Non-Contact Breaker Points Ignition Systems

[Andy]

Hey people, been getting very annoyed for the past few hours over this one been looking through all my textbooks and all over the net but can't find a decent explanation of dwell time. Here's my question, Explain dwell time in the context of electronic ignition systems (non-contact breaker points system)

Need help asap before i smash this keyboard through the monitor.

 

[Andy]

No worries people its all sorted, using a different computer now.

 

[wais]

Hey there,

Dwell time refers to the amount of time that the ignition coil in a non-contact breaker points ignition system is energized, or the duration that the primary circuit is closed. In simpler terms, it is the time that the ignition coil is charged before it discharges to create a spark.

In electronic ignition systems, the dwell time is controlled by the engine control unit (ECU) and is typically measured in milliseconds. The ECU uses various inputs, such as engine speed and load, to determine the optimal dwell time for each spark plug.

The purpose of dwell time is to ensure that the ignition coil has enough time to fully charge before it discharges, producing a strong spark. If the dwell time is too short, the spark may be weak, resulting in poor engine performance. On the other hand, if the dwell time is too long, the ignition coil may overheat, leading to premature failure.

I hope this helps clarify the concept of dwell time in non-contact breaker points ignition systems. Good luck with your research and please don't smash your keyboard!