Methods and systems for coolant system

Methods and systems are provided for controlling coolant flow through parallel branches of a coolant circuit including an AC condenser and a charge air cooler. Flow is apportioned responsive to an AC head pressure and a CAC temperature to reduce parasitic losses and improve fuel economy. The flow is...

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Bibliographische Detailangaben
Hauptverfasser: Smiley, III, John, Bidner, David Karl, Zeng, Zhaoyang, Karnik, Amey Y
Format: Patent
Sprache:eng
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Beschreibung
Zusammenfassung:Methods and systems are provided for controlling coolant flow through parallel branches of a coolant circuit including an AC condenser and a charge air cooler. Flow is apportioned responsive to an AC head pressure and a CAC temperature to reduce parasitic losses and improve fuel economy. The flow is apportioned via adjustments to a coolant pump output and a proportioning valve.