METHOD FOR COMPRESSOR SURGE DETECTION TO ENABLE MODEL BASE AIR ESTIMATION

A method for compressor surge detection to enable model based air estimation includes determining if an intake air compressor pressure ratio is within a predetermined surge pressure range. Then the differences between mass air flow sensor signals measured at a start and finish of each count of a pre...

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Bibliographische Detailangaben
Hauptverfasser:	Wiggins, Layne K, Heinzen, Adam J, Kosanka, Andrew J, Meldrum, Jay S, Murphy, Shawn W
Format:	Patent
Sprache:	eng
Schlagworte:	BLASTING HEATING LIGHTING MEASURING MECHANICAL ENGINEERING NON-POSITIVE DISPLACEMENT PUMPS PHYSICS POSITIVE DISPLACEMENT MACHINES FOR LIQUIDS PUMPS FOR LIQUIDS OR ELASTIC FLUIDS TESTING TESTING STATIC OR DYNAMIC BALANCE OF MACHINES ORSTRUCTURES TESTING STRUCTURES OR APPARATUS NOT OTHERWISE PROVIDED FOR WEAPONS
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Beschreibung
Zusammenfassung:	A method for compressor surge detection to enable model based air estimation includes determining if an intake air compressor pressure ratio is within a predetermined surge pressure range. Then the differences between mass air flow sensor signals measured at a start and finish of each count of a predetermined string length counter when the compressor pressure ratio is within the predetermined surge pressure range. Next, a transition is made to an air mass estimation model output signal from a mass air flow sensor signal when a sum of the air flow differences is greater than a predetermined compressor surge threshold.