Method of starting spark-ignition direct injection (SIDI) engines

A cold start control module for a direct injection engine includes a fuel flow determination module and a cylinder activation/deactivation module. The fuel flow determination module determines a requested fuel flow. The cylinder activation/deactivation module deactivates at least one of cylinders wh...

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Bibliographische Detailangaben
Hauptverfasser: GWIDT JESSE M, MONCHAMP ROBERT X, GWIDT KAREN MARGARET-BELL, KOTSONAS MICHAEL N
Format: Patent
Sprache:eng
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Zusammenfassung:A cold start control module for a direct injection engine includes a fuel flow determination module and a cylinder activation/deactivation module. The fuel flow determination module determines a requested fuel flow. The cylinder activation/deactivation module deactivates at least one of cylinders when the requested fuel flow exceeds a maximum fuel flow of the fuel pump during cold start.