FUEL INJECTION CONTROL DEVICE OF INTERNAL COMBUSTION ENGINE

• 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; WEAPONS

To provide a fuel injection control device which can suppress the deterioration of the homogenization of an air-fuel mixture in a cylinder while suppressing the adhesion of fuel to an inner wall of an intake port, and the blowout of fuel to an exhaust passage.SOLUTION: In an internal combustion engine in which a fuel injection device is arranged in an intake pipe located at an upstream side of an intake valve, when an opening period of the intake valve and an opening period of an exhaust valve are overlapped on each other, this fuel injection control device makes a fuel injection device perform fuel injection in a fuel injection period from the valve-closing of the exhaust valve up to timing at which the deceleration of an intake air flow speed becomes maximum.SELECTED DRAWING: Figure 6 【課題】吸気ポート内壁への燃料の付着及び燃料の排気通路への吹き抜けを抑制しつつ、筒内における混合気の均質度の悪化を抑制できる、燃料噴射制御装置を提供する。【解決手段】本発明の燃料噴射制御装置は、燃料噴射装置を吸気バルブ上流の吸気管に配置した内燃機関において、吸気バルブの開期間と排気バルブの開期間とがオーバーラップするときに、排気バルブの閉弁後から、吸気流速の減速度が極大になるタイミングまでの燃料噴射期間で燃料噴射装置による燃料噴射を行わせる。【選択図】図６