CONTROL DEVICE OF ENGINE
To provide a control device of an engine capable of surely preventing excessive increase of combustion noise in SPCCI combustion.SOLUTION: A control device of an engine in which SPCCI combustion executing CI combustion after SI combustion is executed at least in a part of operation region, has a det...
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Zusammenfassung: | To provide a control device of an engine capable of surely preventing excessive increase of combustion noise in SPCCI combustion.SOLUTION: A control device of an engine in which SPCCI combustion executing CI combustion after SI combustion is executed at least in a part of operation region, has a detection portion SN2 for detecting a parameter relating to noise generated by combustion in a cylinder 2, a calculation portion 100 for specifying a prescribed combustion noise index value on the basis of a detection value by the detection portion SN2, a storing portion 100 for storing a characteristic specifying a relationship between a start timing θci of CI combustion and the combustion noise index value, a combustion control portion 100 for controlling the start timing of the CI combustion on the basis of the characteristic stored in the storing portion 100 and the combustion noise index value specified by the calculation portion 100.SELECTED DRAWING: Figure 18
【課題】SPCCI燃焼時において燃焼騒音が過大になるのをより確実に防止できるエンジンの制御装置を提供する。【解決手段】SI燃焼の後にCI燃焼を生じさせるSPCCI燃焼が少なくとも一部の運転領域で実行されるエンジンの制御装置において、気筒2での燃焼により生じる騒音に関連するパラメータを検出する検出部SN2と、前記検出部SN2による検出値に基づいて所定の燃焼騒音指標値を特定する演算部100と、CI燃焼の開始時期θciと前記燃焼騒音指標値との関係を規定する特性を記憶した記憶部100と、記憶部100に記憶された前記特性と、前記演算部100により特定された燃焼騒音指標値とに基づいてCI燃焼の開始時期を制御する燃焼制御部100とを設ける。【選択図】図18 |
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