What are the classifications of ignition systems?
2 Answers
Ignition systems are divided into conventional ignition systems and electronic ignition systems. The ignition system is an important component of gasoline engines, and its performance significantly affects engine power, fuel consumption, and exhaust emissions. All equipment capable of generating an electric spark between the two electrodes of a spark plug is referred to as the engine's "ignition system." It typically consists of a battery, generator, distributor, ignition coil, and spark plug, among other components. More details are as follows: 1. In gasoline engines, when compression is near the top dead center, the combustible mixture is ignited by the spark plug, thereby burning to perform external work. For this reason, gasoline engine combustion chambers are equipped with spark plugs. 2. The function of the ignition system is to generate an electric spark with sufficient energy between the two electrodes of the spark plug in accordance with the working sequence of the cylinders.
I think ignition systems can be mainly divided into three categories: traditional mechanical ignition, electronic ignition, and modern distributorless ignition. Mechanical ignition was most common in cars decades ago, using a distributor and contact points for ignition, but the contacts are prone to wear, causing starting difficulties or misfires, especially noticeable in cold weather, and old drivers often had to manually adjust the timing. Electronic ignition is much better, relying on sensors and computer control for ignition timing, greatly improving reliability and almost maintenance-free, with faster engine response when driving. Nowadays, most new cars use distributorless ignition, where each spark plug is directly connected to a coil, providing precise and efficient ignition, which is also friendly to fuel consumption and emissions. I remember working on the mechanical system of an old car—it was constantly troublesome. Driving now is much more worry-free, and the evolution of ignition technology is truly a significant advancement.
