Control apparatus for spark-ignition internal combustion engine

When a catalyst of an internal combustion engine is not activated, a control apparatus retards the ignition timing of a spark plug, and thereby, executes a rapid warm-up control of the catalyst. However, on this occasion, when alcohol concentration Ca is high, the control apparatus sets the ignition...

Ausführliche Beschreibung

Gespeichert in:

Bibliographische Detailangaben
Hauptverfasser:	Hayashi, Keisuke, Ozeki, Masahiro
Format:	Patent
Sprache:	eng
Schlagworte:	BLASTING COMBUSTION ENGINES CONTROLLING COMBUSTION ENGINES ENGINE PLANTS IN GENERAL GAS-FLOW SILENCERS OR EXHAUST APPARATUS FOR INTERNALCOMBUSTION ENGINES GAS-FLOW SILENCERS OR EXHAUST APPARATUS FOR MACHINES ORENGINES IN GENERAL HEATING HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS IGNITION, OTHER THAN COMPRESSION IGNITION, FORINTERNAL-COMBUSTION ENGINES LIGHTING MACHINES OR ENGINES IN GENERAL MECHANICAL ENGINEERING STEAM ENGINES TESTING OF IGNITION TIMING IN COMPRESSION-IGNITION ENGINES WEAPONS
Online-Zugang:	Volltext bestellen
Tags:	Tag hinzufügen Keine Tags, Fügen Sie den ersten Tag hinzu!

Beschreibung
Zusammenfassung:	When a catalyst of an internal combustion engine is not activated, a control apparatus retards the ignition timing of a spark plug, and thereby, executes a rapid warm-up control of the catalyst. However, on this occasion, when alcohol concentration Ca is high, the control apparatus sets the ignition timing to a more advanced side than when the alcohol concentration Ca is low. When the ignition timing is set to an advanced side, opening angle θ of a throttle valve is manipulated such that command value qsjc for the quantity of the air that is filled into a combustion chamber is increased. Thereby, compared with when the command value qsjc is not increased, the quantity of the fuel that is injected from a cylinder injection valve increases, and the thermal energy of exhaust gas increases.