Control device for internal combustion engine

Abstract

Abstract Translated from Japanese (57)【要約】 【目的】予め定められた機関負荷において燃料噴射パタ ーンを切換えるようにした内燃機関において、機関の能 力を十分に引き出す。 【構成】切換え負荷以下においては要求燃料噴射量を圧 縮行程で噴射し、切換え負荷以上においては要求燃料噴 射量を吸気行程と圧縮行程で分割噴射する機関におい て、切換負荷付近において、圧縮行程１回噴射と分割噴 射とを交互に実効し、 180クランク角回転するのに要す る時間から夫々の噴射パターンに対応する機関トルクを 求め、圧縮行程１回噴射に対応するトルクが分割噴射に 対応するトルクより大きい場合には切換え負荷を増大せ しめ、逆の場合には切換え負荷を減少せしめる。 (57) [Summary] [Purpose] In an internal combustion engine in which the fuel injection pattern is switched at a predetermined engine load, the engine capacity is fully brought out. [Structure] In an engine in which a required fuel injection amount is injected in a compression stroke below a switching load, and a required fuel injection amount is split injection in an intake stroke and a compression stroke above a switching load, one compression stroke is performed near the switching load. The engine torque corresponding to each injection pattern is obtained from the time required for 180 crank angle rotation by alternately performing injection and split injection, and the torque corresponding to the single injection in the compression stroke is lower than the torque corresponding to the split injection. When it is large, the switching load is increased, and when it is large, the switching load is decreased.

Inventors

• 👤 Yasushi Ito
• 👤 泰志 伊藤

Bibliographic Details