VARIABLE IGNITION ADVANCE ANGLE BEFORE POSITION OF THE TOP DEAD DEAD POINT (TDC)

摘要

1. A control device for a two-stroke internal combustion engine, containing means for changing the ignition timing relative to the position of the top dead center of the two-stroke internal combustion engine, in which the means for changing the ignition timing provides control of the ignition timing in such a way that the ignition timing is gradually adjusted depending on the number engine speed, characterized in that the ignition timing is delayed step by step in two or more stages when the engine speed exceeds the threshold engine speed. 2. The device according to claim 1, in which the ignition timing is adjusted step by step in one or more variable ranges. The device according to claim 1, in which the ignition timing is adjusted step by step between the first ignition timing and the second ignition timing. The apparatus of claim 1, wherein the ignition timing is stepwise adjusted from about 31 degrees before the top dead center position to about 10 degrees before the top dead center position. The apparatus of claim 1, wherein the ignition timing is stepwise adjusted from about 10 degrees before the top dead center position and to about 0 degrees before the top dead center position. Device according to any one of claims 1 to 5, in which the threshold engine speed is 6000-14500 rpm. A device according to any one of claims 1 to 5, wherein the engine speed is between 0 rpm and 15,000 rpm. The device according to claim 1, in which during one or more revolutions of the crankshaft, a skip occurs