Method and apparatus for detecting selective catalytic reduction injector opening time

A method for detecting an opening time of a valve, includes receiving a valve current profile of the valve and processing the valve current profile using at least a slope deflection detector to determine a status of the valve based on an output of the slope deflection detector.

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Bibliographische Detailangaben
Hauptverfasser: MARVIN LESTER LYNCH, DONALD PETER KULTGEN, NINGSHENG QIAO
Format: Patent
Sprache:eng
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Beschreibung
Zusammenfassung:A method for detecting an opening time of a valve, includes receiving a valve current profile of the valve and processing the valve current profile using at least a slope deflection detector to determine a status of the valve based on an output of the slope deflection detector.