METHODS AND SYSTEMS FOR SURGE CONTROL

Systems and methods are provided for reducing surge in a boosted engine system. One method comprises adjusting an opening of a compressor recirculation valve to allow a compressor recirculation flow based on a combination of a nominal compressor recirculation flow and a filtered nominal compressor r...

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Bibliographic Details
Main Authors OSSAREH HAMID-REZA, NIESSEN PAUL MARTIN
Format Patent
LanguageEnglish
Published 18.02.2016
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Summary:Systems and methods are provided for reducing surge in a boosted engine system. One method comprises adjusting an opening of a compressor recirculation valve to allow a compressor recirculation flow based on a combination of a nominal compressor recirculation flow and a filtered nominal compressor recirculation flow. The nominal compressor recirculation flow may be calculated as a difference between a desired compressor flow rate based on a surge limit of compressor and an estimated throttle mass flow rate.
Bibliography:Application Number: US201414460304