START CONTROL DEVICE FOR COMPRESSION SELF-IGNITION TYPE ENGINE

PROBLEM TO BE SOLVED: To always accurately decide whether or not one compression start is feasible while variably setting the boundary of a piston stop position range enabling one compression start according to the engine state.SOLUTION: If restart conditions are satisfied after automatic stop of an...

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Bibliographische Detailangaben
Hauptverfasser:	NAKAMOTO JINJU, HOSOYA HIDEO, YAMAUCHI TATSUO, ARAKI KEIJI
Format:	Patent
Sprache:	eng
Schlagworte:	BLASTING CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TOTRANSPORTATION COMBUSTION ENGINES CONTROLLING COMBUSTION ENGINES 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 MECHANICAL ENGINEERING STARTING AIDS FOR SUCH ENGINES, NOT OTHERWISE PROVIDEDFOR STARTING OF COMBUSTION ENGINES TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINSTCLIMATE CHANGE WEAPONS
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Beschreibung
Zusammenfassung:	PROBLEM TO BE SOLVED: To always accurately decide whether or not one compression start is feasible while variably setting the boundary of a piston stop position range enabling one compression start according to the engine state.SOLUTION: If restart conditions are satisfied after automatic stop of an engine, the piston stop position of a stop time compression stroke cylinder, which has been stopped in a compression stroke is specified based on a sensing signal of a crank angle sensor. If the specified piston stop position is on the bottom dead center side with respect to a predetermined reference stop position, one compression start of injecting an initial fuel to the stop time compression stroke cylinder is carried out. If it is not the case, two compression start of injecting an initial fuel to a stop time intake stroke cylinder, which has been stopped in an intake stroke is carried out. A non-signal angle range H corresponding to a tooth lack part of a crank plate is set so as not to overlap with the variable range Rx of the reference stop position to be changed according to the completion degree of the warming up operation.