Ignition timing controller for engine

Abstract

Abstract PURPOSE:To improve the responsive property of rotational frequency increase of an engine to the increase of throttle opening and the fuel consumption in starting by correcting ignition timing to the advance side from a predetermined timing when the starting condition of the engine is detected within the idle running region. CONSTITUTION:When the running region is in the idle one and an engine 10 is not in the starting condition, then the ignition timing is made a predetermined one IG0 at the retard side from the upper dead point of compression to stabilize the rotation of an engine in idling. And when the starting condition is detected even in the idle region, then the ignition timing is corrected to one IG1 at the advance side from said predetermined ignition timing IG0, i.e. in the direction of improving the output efficiency. thus, until the engine leaves the idle region from the beginning of start [period of division shown by symbol (D)], are im proved the responsive property of the output or the rotational frequency rise of the engine to the increase of throttle opening and thereby the fuel consump tion in the starting.

Inventors

• 👤 Shigeki Imazu
• 👤 今津　茂樹

Bibliographic Details