Method for cooling transmission oil of hybrid vehicle, involves pumping coolant in coolant cycle of internal combustion engine by electrical coolant pump in operating conditions of vehicle

The method involves transferring heat from transmission oil to a coolant by a transmission oil/coolant heat exchanger (18). The coolant is pumped in a coolant cycle of an internal combustion engine (2) of a vehicle. The coolant is pumped by a coolant pump (8) that is mechanically driven by the inter...

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Bibliographische Detailangaben
Hauptverfasser:	OHLENDORF, UWE, DANZER, ANDREAS
Format:	Patent
Sprache:	eng ; ger
Schlagworte:	BLASTING COOLING OF INTERNAL-COMBUSTION ENGINES COOLING OF MACHINES OR ENGINES IN GENERAL ENGINE PLANTS IN GENERAL ENGINEERING ELEMENTS AND UNITS GEARING GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVEFUNCTIONING OF MACHINES OR INSTALLATIONS HEATING LIGHTING MACHINES OR ENGINES IN GENERAL MECHANICAL ENGINEERING STEAM ENGINES THERMAL INSULATION IN GENERAL WEAPONS
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Beschreibung
Zusammenfassung:	The method involves transferring heat from transmission oil to a coolant by a transmission oil/coolant heat exchanger (18). The coolant is pumped in a coolant cycle of an internal combustion engine (2) of a vehicle. The coolant is pumped by a coolant pump (8) that is mechanically driven by the internal combustion engine in operating conditions of the vehicle. The coolant is pumped by an electrical coolant pump (15) in specific operating conditions in which the driven coolant pump does not operate or does not produce sufficient pumping output. An independent claim is also included for a hybrid vehicle comprising a turbocharger and a cooling circuit that is provided for cooling an internal combustion engine and the turbocharger. Verfahren zum Kühlen von Getriebeöl eines Fahrzeugs, insbesondere eines Hybridfahrzeugs, wobei Wärme aus dem Getriebeöl über einen Getriebeöl-/Kühlmittelwärmetauscher an ein in einem Kühlmittelkreislauf eines Verbrennungsmotors des Fahrzeugs umgepumptes Kühlmittel übertragen wird, wobei zumindest in manchen Betriebszuständen des Fahrzeugs das Kühlmittel mittels einer elektrischen Kühlmittelpumpe umgepumpt wird.