Bensiinisähkösytytyksessä

Bensiinisähkösytytys, often shortened to electronic ignition or EI, refers to a modern ignition system used in internal combustion engines. It replaces older mechanical contact breaker points with electronic components. The primary function of any ignition system is to generate a high-voltage electrical spark at the correct moment in time to ignite the fuel-air mixture in the engine's combustion chamber.

In a bensiinisähkösytytys system, a sensor, often a crankshaft position sensor or a camshaft position sensor, detects the engine's rotational position. This information is fed to an electronic control unit (ECU) or an ignition module. The ECU then calculates the optimal ignition timing based on various engine parameters such as engine speed, load, and temperature. Once the timing is determined, the ECU signals a coil to generate the high-voltage spark.

Advantages of bensiinisähkösytytys over older systems include improved ignition accuracy, leading to better fuel efficiency, reduced emissions, and more consistent engine performance. It also eliminates the need for regular maintenance of contact points, such as cleaning and adjustment, which were a common requirement in older ignition systems. The electronic components are generally more durable and less prone to wear. The system's ability to precisely control ignition timing allows for more sophisticated engine management strategies.