Air-fuel ratio control device for two-cycle internal combustion engine

Abstract

Abstract PURPOSE:To ensure stable combustion, by detecting each cylinder for its misfiring and correcting a fuel injection to quantity be decreased for the cylinder, which generates the misfiring, so that the cylinder, preventing its mixture from becoming rich to a combustible limit or more, easily attains the ignition in the next time. CONSTITUTION:On the basis of operative condition of load Q, engine speed NE, etc., of an internal combustion engine, a fuel supply amount calculating means 2 calculates a fuel supply amount to feed its output signal to a fuel supply signal forming means 3. And forming a fuel supply signal so that fuel of the calculated amount is supplied by the separate timing to each cylinder, the fuel supply signal is applied to fuel supplying means 1 thus enabling the fuel of predetermined amount to be supplied to each cylinder. While in this case, a misfiring detecting means 4, which detects a misfiring condition separately in each cylinder, is provided. And a fuel supply amount correcting means 5, in each cylinder detecting a misfire, corrects the fuel supply amount, calculated by the fuel supply amount calculating means 2, to be decreased.

Inventors

• 👤 Katsuhiko Hirose
• 👤 雄彦 広瀬
• 👤 Hiroshi Noguchi
• 👤 博史 野口
• 👤 Toshio Tanahashi
• 👤 敏雄 棚橋
• 👤 Toyoichi Umehana
• 👤 豊一 梅花

Bibliographic Details