INTERNAL COMBUSTION ENGINE CONTROL SYSTEM, CONTROL METHOD FOR INTERNAL COMBUSTION ENGINE AND CONTROL PROGRAM FOR INTERNAL COMBUSTION ENGINE

• Main Authors: MIZOGUCHI HIROAKI, KIKUCHI SHIGETA, SUZUKI TATSUYA
• Format: Patent
• Language: English; Japanese
• Published: 18.12.2023
• Subjects: BLASTING; COMBUSTION ENGINES; COMBUSTION ENGINES IN GENERAL; CONTROLLING COMBUSTION ENGINES; HEATING; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS; INTERNAL-COMBUSTION PISTON ENGINES; LIGHTING; MECHANICAL ENGINEERING; WEAPONS

To provide an internal combustion engine control system that prohibits closing control of a waste gate valve all the time in a low load region and in a steady state.SOLUTION: An internal combustion engine control system includes an internal combustion engine, a supercharger, a waste gate valve and a controller. In the internal combustion engine control system, the controller includes: a load measurement section (201) that measures load to be applied to the internal combustion engine; a load determination section (202) that determines whether a change of the load is within a predetermined range for a predetermined period; and a waste gate valve control section (203) that determines a steady state when the change of the load is within the predetermined range for the predetermined period to prohibit closing control of the waste gate valve and performs the closing control of the waste gate valve when the change of the load is not within the predetermined range for the predetermined period.SELECTED DRAWING: Figure 2 【課題】低負荷領域かつ定常状態では常にウェイストゲートバルブの閉制御を禁止する内燃機関制御システムを提供する。【解決手段】内燃機関、過給機、ウェイストゲートバルブ及びコントローラを備える内燃機関制御システムであって、コントローラは、内燃機関に加えられる負荷を測定する負荷測定部（２０１）と、所定の期間、負荷の変化が所定の範囲内であるか否かを判定する負荷判定部（２０２）と、所定の期間、負荷の変化が所定の範囲内であるとき定常状態であると判定してウェイストゲートバルブの閉制御を禁止し、所定の期間、負荷の変化が所定の範囲内でないときウェイストゲートバルブを閉制御する、ウェイストゲートバルブ制御部（２０３）と、を備える内燃機関制御システムを提供する。【選択図】図２