The present invention relates to a multi-cylinder engine (12) having a compression ignition combustion mode, a vibration detecting sensor (5) that is preferably mounted in a cylinder block or a cylinder head (12a) is used to detect a frequency and the detected frequency is appropriately analyzed to detect or estimate a cylinder pressure peak value and peak timing for each cylinder. An amount of internal EGR, a fuel injection condition, an engine speed (Ne) and the like are then controlled so as to bring each of these parameters into an appropriate range thereof. The control apparatus (1) suppresses variations in combustion states among different cylinders and different cycles arising from unit-to-unit variations or deterioration in the engine (12) or part-to-part variations or deterioration in a component thereof.
Control apparatus and control method for multi-cylinder engine
Vorrichtung und Verfahren zur Steuerung einer Mehrzylinder-Brennkraftmaschine
Dispositif et méthode de commande d'un moteur à plusieurs cylindres
2015-10-21
Patent
Elektronische Ressource
Englisch
IPC: | F02B INTERNAL-COMBUSTION PISTON ENGINES , Brennkraftmaschinen mit innerer Verbrennung mit Verdrängerwirkung / B60K Anordnung oder Einbau von Antriebseinheiten oder von Kraft- bzw. Drehmomentübertragungen in Fahrzeugen , ARRANGEMENT OR MOUNTING OF PROPULSION UNITS OR OF TRANSMISSIONS IN VEHICLES / F02D CONTROLLING COMBUSTION ENGINES , Steuern oder Regeln von Brennkraftmaschinen / F02P IGNITION, OTHER THAN COMPRESSION IGNITION, FOR INTERNAL-COMBUSTION ENGINES , Zündung von Brennkraftmaschinen mit innerer Verbrennung, ausgenommen Kompressionszündung |
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