INTERNAL COMBUSTION ENGINE CONTROL UNIT

• Main Author: MIYAZAKI YUICHI
• Format: Patent
• Language: English; Japanese
• Published: 17.03.2016
• Subjects: BLASTING; CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TOTRANSPORTATION; COMBUSTION ENGINES; CONTROLLING COMBUSTION ENGINES; CYCLICALLY OPERATING VALVES FOR MACHINES OR ENGINES; ENGINE PLANTS IN GENERAL; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; HEATING; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS; LIGHTING; MACHINES OR ENGINES IN GENERAL; MECHANICAL ENGINEERING; STEAM ENGINES; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS; TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINSTCLIMATE CHANGE; WEAPONS

PROBLEM TO BE SOLVED: To make an exhaust gas recirculation volume adjustable.SOLUTION: An internal combustion engine control unit is a control unit controlling an internal combustion engine including a valve-opening-interval change mechanism changing an interval between opening of an exhaust valve in an exhaust stroke of the internal combustion for which valve lift peak timing during the exhaust stroke is set and opening of the exhaust valve in an intake stroke for which valve lift peak timing during the intake stroke is set, the control unit comprising a control section causing the valve-opening-interval change mechanism to control the valve lift peak timing by opening the exhaust valve in the intake stroke of a cylinder for which an exhaust gas recirculation volume is to be controlled and/or peak timing of an exhaust pressure by exhaust gas blow-down by opening the exhaust valve in the exhaust stroke of a cylinder deviated in explosion timing from the cylinder for which the exhaust gas recirculation volume is to be controlled by 360°.SELECTED DRAWING: Figure 2 【課題】排気還流量を調整可能とすることを課題とする。【解決手段】内燃機関の制御装置は、内燃機関の排気行程中にバルブリフトのピークタイミングが設定された排気行程における排気弁の開弁と吸気行程中にバルブリフトのピークタイミングが設定された吸気行程における排気弁の開弁との間隔を変更する開弁間隔変更機構を備える内燃機関を制御する制御装置において、前記開弁間隔変更機構により、排気還流量の制御対象となる気筒の前記吸気行程における排気弁の開弁によるバルブリフトピークのタイミングおよび/または、前記排気還流量の制御対象となる気筒と爆発タイミングが３６０?ずれた気筒の前記排気行程における排気弁の開弁による排気ブローダウンによる排気圧力のピークのタイミングを制御する制御部を備える。【選択図】図２