CONTROL DEVICE OF INTERNAL COMBUSTION ENGINE

• Main Authors: GO REIKO, SATOMI TOMOHIKO, IDOGAWA MASANAO, SUGIMOTO MOTOHIRO
• Format: Patent
• Language: English; Japanese
• Published: 30.11.2022
• Subjects: BLASTING; COMBUSTION ENGINES; CONTROLLING COMBUSTION ENGINES; HEATING; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS; LIGHTING; MECHANICAL ENGINEERING; WEAPONS

To provide a control device of an internal combustion engine which is suppressed in the lowering of the restartability of the internal combustion engine having a port injection valve.SOLUTION: A control device of an internal combustion engine having a port injection valve comprises: an intermittent operation control part for automatically stopping and automatically starting the internal combustion engine; a measurement part for measuring a stop time of the internal combustion engine when the internal combustion engine is automatically stopped, and newly remeasuring the stop time when there arises an automatic stop requirement once again after a start of the internal combustion engine; a port injection amount control part for increasing a fuel injection amount from the port injection valve after the start of the internal combustion engine as the stop time is longer, and gradually attenuating an increase amount; and a lower-limit guard part using the increase amount in the attenuation as a lower-limit value of the increase amount after the next start of the internal combustion engine.SELECTED DRAWING: Figure 5 【課題】ポート噴射弁を備えた内燃機関の再始動性の低下が抑制された内燃機関の制御装置を提供することを課題とする。【解決手段】ポート噴射弁を備えた内燃機関の制御装置であって、前記内燃機関の自動停止及び自動始動を実行する間欠運転制御部と、前記内燃機関が自動停止した場合に前記内燃機関の停止時間を計測し、前記内燃機関の始動後に再び自動停止要求があった場合には、前記停止時間を新たに計測し直す計測部と、前記停止時間が長いほど前記内燃機関の始動後に前記ポート噴射弁からの燃料噴射量を増量させ、且つ増量分を徐々に減衰させるポート噴射量制御部と、減衰中の前記増量分を、前記内燃機関の次回の始動後での前記増量分の下限ガード値として用いる下限ガード部と、を備えた内燃機関の制御装置。【選択図】図５