Method of identifying the ignition stroke in the case of a single-cylinder four stroke engine

摘要

In a method of recognizing the ignition stroke in a single-cylinder four-stroke engine, the position and the angular speed of the crankshaft are determined. The period duration is measured from the top of dead center to a defined angle of rotation of the crankshaft, and the measured period durations of two successive revolutions of the crankshaft are compared. The ignition stroke takes place during the rotation of the crankshaft having the shorter period duration.