FIELD: automotive industry; electrical equipment of automobiles; ignition systems of internal combustion engines with forced ignition of fuel-air mixture in combustion chambers of piston engines; suppression of knocking. SUBSTANCE: according to offered method, series of input signal pulses synchronized with position of engine crankshaft is converted into series of triangular pulses, and triangular shaped signal is compared with reference level, noting current moment of ignition at equality of reference level and triangular pulse trailing edge; set of changes in ignition current moment is governed by ignition control law which can be expressed by formula with first and second components where, for forming first component, first constant is expressed and relationship of gradients of leading and trailing edges of triangular pulse is found; gradient of pulse leading edge is regulated depending on required current ignition moment; for forming second component, determined are reference level, pulse trailing edge gradient, value of crankshaft rotation speed and then second constant is calculated. Also found is antiknock rating of internal combustion engine and, depending on value of stability, ignition current moment is changed. EFFECT: enhanced power and economy characteristics of internal combustion engine. 3 dwg
