Dual coupling gear mechanism
AssigneeGETRAG Getriebe- und Zahnradfabrik Hermann Hagenmeyer GmbH & Cie KG
InventorsJens Weller, Klaus Kranich
Life of this patent
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Abstract
Dual coupling gear mechanism for a motor vehicle, having a first input shaft and a second input shaft and having a first and a second countershaft, the input shafts and the countershafts being connected to each other by means of a plurality of shiftable wheel sets in order to establish at least seven forward gear stages and at least one reverse gear stage. At least one wheel set has a fixed wheel which is connected to one of the input shafts and two loose wheels which are rotatably supported on the first and on the second countershaft, respectively, and which are in engagement with the fixed wheel. An electric engine is connected to a loose wheel of one of the wheel sets or can be connected thereto by means of a shift clutch.
Claims15
Dual coupling gear mechanism for a motor vehicle, having a first input shaft and a second input shaft and having a first and a second countershaft, the input shafts and the countershafts being connected to each other by means of a plurality of shiftable wheel sets in order to establish at least seven forward gear stages and at least one reverse gear stage, wherein at least one wheel set has a fixed wheel which is connected to one of the input shafts and has two loose wheels which are rotatably supported on the first and on the second countershaft, respectively and which are in engagement with the fixed wheel,
- wherein an electric engine is connected to a loose wheel of one of the wheel sets, wherein the electric engine is connected to the loose wheel by means of a toothed wheel, the toothed wheel being in direct engagement with a toothed wheel which is securely connected to the loose wheel.
Dual coupling gear mechanism for a motor vehicle, having a first input shaft and a second input shaft and having a first and a second countershaft, the input shafts and the countershafts being connected to each other by means of a plurality of switchable wheel sets in order to establish at least seven forward gear stages and at least one reverse gear stage, wherein the seventh forward gear stage represents the highest gear stage, wherein at least one wheel set has a fixed wheel which is connected to one of the input shafts and has two loose wheels which are rotatably supported on the first and on the second countershaft, respectively and which are in engagement with the fixed wheel, wherein there are arranged on the first countershaft a loose wheel which is associated with the second forward gear stage, a loose wheel which is associated with the sixth forward gear stage, a loose wheel which is associated with the first forward gear stage and a loose wheel which is associated with the seventh forward gear stage, that is, in this sequence when viewed from a gear input, and wherein there are arranged on the second countershaft a loose wheel which is associated with the reverse gear stage, a loose wheel which is associated with the fourth forward gear stage, a loose wheel which is associated with the third forward gear stage and a loose wheel which is associated with the fifth forward gear stage, that is, in this sequence when viewed from a gear input.
Dependencies are inferred from the claim text.