CONTROL DEVICE FOR INTERNAL COMBUSTION ENGINE

• Main Authors: SASAKI KEISUKE, HATTORI MASANORI, EIRAKU REI, KAGEURA YOSHIYUKI, HIRAOKA SHINICHI, YOSHIOKA TEPPEI
• Format: Patent
• Language: English; Japanese
• Published: 11.01.2018
• Subjects: BEARINGS; BLASTING; COMBUSTION ENGINES; COMBUSTION ENGINES IN GENERAL; CONTROLLING COMBUSTION ENGINES; ELEMENTS OR CRANKSHAFT MECHANISMS; ENGINEERING ELEMENTS AND UNITS; FLEXIBLE SHAFTS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVEFUNCTIONING OF MACHINES OR INSTALLATIONS; HEATING; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS; INTERNAL-COMBUSTION PISTON ENGINES; LIGHTING; MECHANICAL ENGINEERING; ROTARY BODIES OTHER THAN GEARING ELEMENTS; SHAFTS; THERMAL INSULATION IN GENERAL; WEAPONS

PROBLEM TO BE SOLVED: To improve the accuracy of a knock detection.SOLUTION: A control device for controlling an internal combustion engine equipped with a variable compression ratio mechanism enabled to change a compression ratio by varying the effective length of the connecting rod of the internal combustion engine, that is, an internal combustion engine control device for deciding that a knock has occurred, in the case where the detection value of the knock sensor is at or higher than a knock determination value, that a knock has occurred, comprises a knock determination value change part for making the knock determination value smaller than that when the compression ratio of the internal combustion engine is higher.SELECTED DRAWING: Figure 7 【課題】ノック検出の精度を向上する。【解決手段】内燃機関のコンロッドの有効長を変化させることにより圧縮比を変更可能な可変圧縮比機構を備えた内燃機関を制御する制御装置であって、ノックセンサの検出値がノック判定値以上である場合にノックが発生していると判定する内燃機関の制御装置において、内燃機関の圧縮比が高いときは低いときよりもノック判定値を小さくするノック判定値変更部を備える。【選択図】図７