FUEL INJECTION CONTROL DEVICE OF INTERNAL COMBUSTION ENGINE AND FUEL INJECTION CONTROL METHOD

• Main Authors: MURAI ATSUSHI, NAKAMURA YOSHITATSU, KANDA KOSUKE
• Format: Patent
• Language: English; Japanese
• Published: 31.10.2019
• Subjects: BLASTING; COMBUSTION ENGINES; CONTROLLING COMBUSTION ENGINES; HEATING; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS; LIGHTING; MECHANICAL ENGINEERING; SUPPLYING COMBUSTION ENGINES IN GENERAL, WITH COMBUSTIBLEMIXTURES OR CONSTITUENTS THEREOF; WEAPONS

To avoid that the reduction control of a fuel supply amount for suppressing the enrichment of an air-fuel ratio by fuel staying in an intake passage at a start is excessively performed, in an internal combustion engine having a blowby gas recirculation device.SOLUTION: This fuel injection control device performs reduction control for reducing a fuel supply amount to an internal combustion engine according to fuel staying in an intake passage in an activation state of the internal combustion engine, and finishes the reduction control when an integration number of combustion cycles after a start of the activation of the internal combustion engine reaches a set value.SELECTED DRAWING: Figure 3 【課題】ブローバイガス還流装置を備えた内燃機関において、始動時に吸気通路に滞留する燃料による空燃比のリッチ化を抑制するための燃料供給量の減量制御が過剰に実施されることを抑制する。【解決手段】本発明の燃料噴射制御装置は、内燃機関の始動状態で、内燃機関への燃料供給量を吸気通路内に滞留する燃料に応じて減らす減量制御を実施し、減量制御を、内燃機関の始動開始からの燃焼サイクルの積算数が設定値に達したときに終了する。【選択図】図３