Methods and systems for boost control

Methods and systems are provided for improving boost response. A continuously variable compressor recirculation valve and a wastegate are adjusted in complementary frequency bands to move compressor operation away from a surge limit and reduce boost delivery errors. An intake throttle is also concur...

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Bibliographische Detailangaben
Hauptverfasser:	Buckland, Julia Helen, Jankovic, Mrdjan J
Format:	Patent
Sprache:	eng
Schlagworte:	BLASTING CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TOTRANSPORTATION COMBUSTION ENGINES COMBUSTION ENGINES IN GENERAL 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 INTERNAL-COMBUSTION PISTON ENGINES LIGHTING MECHANICAL ENGINEERING SUPPLYING COMBUSTION ENGINES IN GENERAL, WITH COMBUSTIBLEMIXTURES OR CONSTITUENTS THEREOF 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:	Methods and systems are provided for improving boost response. A continuously variable compressor recirculation valve and a wastegate are adjusted in complementary frequency bands to move compressor operation away from a surge limit and reduce boost delivery errors. An intake throttle is also concurrently adjusted to offset manifold air-flow rate errors resulting from the wastegate or recirculation valve adjustments.