A lubrication system for a gearbox arranged in a vehicle

The present invention relates to a lubrication system (8) for a gearbox (3) which is arranged in a motor vehicle (1). The lubrication system comprises a first lubrication circuit (9) with a mechanical pump (12) delivering lubricant to the gearbox (3) and a second lubrication circuit (9) with an elec...

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Bibliographische Detailangaben
Hauptverfasser:	BERGQUIST, Mikael, LINDSTRÖM, Oskar, INGESSON, Mattias
Format:	Patent
Sprache:	eng
Schlagworte:	ARRANGEMENT OR MOUNTING OF PLURAL DIVERSE PRIME-MOVERS INVEHICLES ARRANGEMENT OR MOUNTING OF PROPULSION UNITS OR OFTRANSMISSIONS IN VEHICLES ARRANGEMENTS IN CONNECTION WITH COOLING, AIR INTAKE, GASEXHAUST OR FUEL SUPPLY OF PROPULSION UNITS, IN VEHICLES AUXILIARY DRIVES FOR VEHICLES BLASTING ENGINEERING ELEMENTS AND UNITS GEARING GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVEFUNCTIONING OF MACHINES OR INSTALLATIONS HEATING INSTRUMENTATION OR DASHBOARDS FOR VEHICLES LIGHTING LUBRICATING MECHANICAL ENGINEERING PERFORMING OPERATIONS THERMAL INSULATION IN GENERAL TRANSPORTING VEHICLES IN GENERAL WEAPONS
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Beschreibung
Zusammenfassung:	The present invention relates to a lubrication system (8) for a gearbox (3) which is arranged in a motor vehicle (1). The lubrication system comprises a first lubrication circuit (9) with a mechanical pump (12) delivering lubricant to the gearbox (3) and a second lubrication circuit (9) with an electric pump delivering lubricant to the gearbox (3). The mechanical pump (12) is driven by a component in a powertrain of the vehicle via a mechanical transmission (13). The mechanical transmission (13) comprises a coupling member (15) movably arranged between a connected state in which it transfers a driving force from said component (14) to the mechanical pump (12) and a disconnected state in which it breaks the transfer of driving force from the component (14) to the mechanical pump (12). A control unit (26) is configured to move the coupling member (15) to the disconnected state when the electric pump (21) has capacity to deliver a required lubricant flow to the gearbox (3).