Patent ID: 6505595
Filing Date: 2003-01-14
Classification: F02B,F02D,F02P,Y02T

Abstract:
A method of sing a two-stroke engine comprising:(A) driving a rotational component of the engine to rotate, said component having a plurality of spaced indicator markers located thereon, wherein one of the indicator markers is an ignition triggering marker that designates a position on the rotational component that is acceptable for triggering ignition in a cylinder of the engine; (B) detecting rotation of an indicator marker past a designated location; (C) determining an average velocity of the engine; (D) determining if the average engine velocity exceeds a threshold velocity; and if not (E) detecting rotation of the ignition triggering marker past a designated location downstream of the indicator marker; and (F) triggering ignition in the cylinder upon detecting the ignition triggering marker without taking engine velocity into account.