Drive device for a hybrid-drive motor vehicle
AssigneeAudi AG
InventorsTassilo Scholle, Christian Wirth, Simon Brummer
Life of this patent
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Abstract
A drive device for a hybrid-drive motor vehicle, having an internal combustion engine as a primary drive, an electric engine as a secondary drive, and having planetary gear units that are coupled with one another that can be shifted into different gear steps through shift elements and brakes. The planetary gear units being connectable to a common output shaft by way of input elements and output elements. The reaction elements thereof can be coupled or firmly braked, wherein the drive device can be operated in an electromotor drive, a primary drive having gear steps (gears), or in a hybrid drive.
Claims13
A drive device for a hybrid-drive motor vehicle, comprising:
- an internal combustion engine, the internal combustion engine is a primary drive,
- an electric engine, the electric engine is a secondary drive, and
- planetary gear units coupled with one another that are shifted into different gear steps through clutches and brakes, said gear units being connected to a common output shaft by way of input elements and output elements and reaction elements thereof are coupled or firmly braked,
- wherein the drive device is operated in an electromotor drive, a primary drive having gear steps, or in a hybrid drive,
- wherein six gear steps are shifted into in the primary drive,
- wherein a stepless drive mode is controlled, at least in two gear steps, through the electric engine by a generator or motor superposition in the planetary gear units, and
- wherein, with the secondary drive, three gear steps that are independent of the primary drive-are shifted into, and at least one of the three gear steps that are shiftable independently of the primary drive is usable as a start-up gear.
Dependencies are inferred from the claim text.