Motor vehicle with transmission and transmission fluid pump
AssigneeAudi AG
InventorsMario Schenker, Ralf Kischkat, Wilhelmus Gieles, Lionel Dumont
Life of this patent
Estimating the term…
Abstract
A motor vehicle includes a transmission and a transmission fluid pump for transport of transmission oil to and within the transmission. The transmission fluid pump has a moving element which is coupled to a summation shaft of a planetary gear train. The planetary gear train has a ring gear which is operated by a first drive, and a sun gear which is operated by a second drive. A freewheel mechanism is arranged between the sun gear or a shaft connected to the sun gear and a further element so that the second drive can be switched off, when the first drive operates at high speeds while yet maintaining proper operation of the transmission fluid pump.
Claims6
A motor vehicle, comprising:
- a transmission fluid pump for transport of transmission oil to and within a transmission of the motor vehicle, said transmission fluid pump having a moving element;
- a planetary gear train having a summation shaft coupled with the moving element, said planetary gear train having a first driveshaft connected to an internal combustion engine of the motor vehicle and a second driveshaft connected to an electric motor of the motor vehicle, the electric motor comprising an electric motor housing;
- a freewheel mechanism, the freewheel mechanism connected in a first connection on an inner circumference of the freewheel mechanism, directly without intervening elements, to the second driveshaft operated by the electric motor, and connected in a second connection on a first side portion of the freewheel mechanism, directly without intervening elements, to the electric motor housing, said freewheel mechanism having a second side portion facing a transmission housing and not connected to the transmission housing.
A motor vehicle, comprising:
- a transmission fluid pump for transport of transmission oil to arid within a transmission of the motor vehicle, said transmission fluid pump having a moving element;
- a planetary gear train having a summation shaft coupled with the moving element, said planetary gear train having a first driveshaft and a second driveshaft;
- a first drive which is an internal combustion engine of the motor vehicle for operating the first driveshaft;
- a second drive which is an electric motor of the motor vehicle for operating the second driveshaft, the electric motor of the motor vehicle comprising an electric motor housing;
- and
- a freewheel mechanism, the freewheel mechanism connected, in a first connection on an inner circumference of the freewheel mechanism, directly without intervening elements, to the second driveshaft, the second driveshaft being operated by the electric motor, and connected, in a second connection on a first side portion of the freewheel mechanism, directly without intervening elements, to the electric motor housing, said freewheel mechanism having a second side portion facing a transmission housing and not connected to the transmission housing.
Dependencies are inferred from the claim text.