Transmission and a method for operating same

A transmission includes a drive train having a primary drive with a primary drive shaft (16), particularly for a vehicle, and includes a Ravigneaux planetary gearset (2) which has a double planetary gear with two sun gear shafts (10, 13), one planetary carrier shaft (18) and at least one ring gear s...

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Bibliographische Detailangaben
Hauptverfasser:	Erjawetz Konstantin, Lichtenegger Stefan
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 ELECTRIC EQUIPMENT OR PROPULSION OF ELECTRICALLY-PROPELLEDVEHICLES ELECTRODYNAMIC BRAKE SYSTEMS FOR VEHICLES, IN GENERAL ENGINEERING ELEMENTS AND UNITS GEARING GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVEFUNCTIONING OF MACHINES OR INSTALLATIONS HEATING INSTRUMENTATION OR DASHBOARDS FOR VEHICLES LIGHTING MAGNETIC SUSPENSION OR LEVITATION FOR VEHICLES MECHANICAL ENGINEERING PERFORMING OPERATIONS THERMAL INSULATION IN GENERAL TRANSPORTING VEHICLES IN GENERAL WEAPONS
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Beschreibung
Zusammenfassung:	A transmission includes a drive train having a primary drive with a primary drive shaft (16), particularly for a vehicle, and includes a Ravigneaux planetary gearset (2) which has a double planetary gear with two sun gear shafts (10, 13), one planetary carrier shaft (18) and at least one ring gear shaft (12), as well as an upstream single planetary gearset (3) which is designed as a reduction gearing and includes the gear elements of sun gear (5a), planetary carrier (8a) and ring gear (6a). A first of the gear elements of the single planetary gear set (2), particularly the sun gear (5a), is designed to be fixed to a housing. At least one first element of the Ravigneaux planetary gear set (2) is drive-connected, preferably permanently, to a secondary drive (21) which is particularly preferred to be in the form of an electrical machine.