What is the function of the ignition system?
2 Answers
The function of the ignition system: 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. When a gasoline engine approaches the top dead center during compression, the combustible mixture is ignited by the spark plug, thereby burning and performing external work. For this reason, spark plugs are installed in the combustion chambers of gasoline engines. The voltage required for the spark plug electrodes to break down and produce a spark is called the breakdown voltage. The secondary voltage generated by the ignition system must be higher than the breakdown voltage to make the spark plug spark. The main types of spark plugs include: standard spark plugs, insulator projection spark plugs, electrode spark plugs, seat-type spark plugs, pole-type spark plugs, and surface-jump spark plugs.
The ignition system acts like a car engine's lighter, responsible for generating an electric spark in the cylinder to ignite the mixture of gasoline and air, ensuring smooth engine startup and operation. As a long-time car owner, I understand its importance: if the spark plugs wear out or the ignition coils fail, the car may shake, struggle to accelerate, or even have difficulty starting in cold weather. This not only affects driving enjoyment but can also increase fuel consumption and emissions. During routine maintenance, I regularly check the spark plug gap and cleanliness, replacing them promptly if any abnormalities are detected to avoid breakdowns. An efficient ignition system ensures more complete combustion, improving fuel efficiency and saving a significant amount on gas money.
