Abstract: Method and apparatus for providing ignition advance in an internal combustion engine in which a voltage generator supplies a voltage V.sub.1 applied to a first terminal of a pulse generator, and a tachometer generator supplies a voltage V.sub.2 applied to a second terminal of the pulse generator. The pulse generator in turn produces a pulse which controls the ignition upon the coincidence of voltage V.sub.1 with V.sub.2. A third signal V.sub.3, dependent on at least one of the parameters of operation of the engine, such as temperature or vacuum, is added to voltage V.sub.1 so that when V.sub.1 plus V.sub.3 coincides with V.sub.2, an ignition pulse is produced that triggers the ignition spark at that instant.