Methods and systems for control of coolant flow through an engine 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 through each of an air-conditioning condenser, a charge air cooler (CAC), and a transmission oil cooler (TOC) of the coo...

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Bibliographische Detailangaben
Hauptverfasser: Gooden, James Thomas, Smiley, III, John, Bidner, David Karl, 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 through each of an air-conditioning condenser, a charge air cooler (CAC), and a transmission oil cooler (TOC) of the coolant circuit to maintain an estimated transmission oil temperature (TOT) below a threshold. The TOT is estimated from a torque converter slip ratio.