Hybrid drive train for a hybrid-drive motor vehicle

A hybrid drive train for a hybrid-drive vehicle, comprising:

• a transmission, in particular a manual transmission, which can be shifted into different gear ratios by shifting components, and which can be drivingly connected to an internal combustion engine via an internal combustion engine shaft, to an electric motor via an electric motor shaft, and to at least one vehicle axle via an output shaft, wherein the internal combustion engine shaft and a power takeoff shaft that is drivingly connected to the output shaft can be connected via spur gear wheel sets, which can be selected by the shifting components and each of which forms a gear plane, wherein the gear planes include a first and a second hybrid gear plane, each of which can additionally be drivingly connected to the electric motor shaft, and wherein the electric motor can be connected to the internal combustion engine via the first hybrid gear plane, forming a first load path, and can be connected to the internal combustion engine via the second hybrid gear plane, forming a second load path, while at the same time, the power takeoff shaft connected to the output shaft is decoupled from the respective load path, wherein the first and second hybrid gear planes each have a power takeoff-side gear wheel arranged on the power takeoff shaft, a drive-side gear wheel arranged on the internal combustion engine shaft, and an electric motor-side gear wheel arranged coaxially to the electric motor shaft, and wherein the electric motor-side gear wheel, in particular, is rotationally mounted as an idler gear wheel and can be decoupled from the electric motor shaft or coupled thereto by the shifting component, wherein the power takeoff-side gear wheel of the first and second hybrid gear planes, arranged on the power-takeoff shaft, is an idler gear wheel, which can be coupled to or decoupled from the power takeoff shaft by a shifting component, and wherein the drive-side gear wheel of the first and second hybrid gear planes, arranged on the internal combustion engine shaft, is an idler gear wheel, which can be coupled to the internal combustion engine shaft by a shifting component, wherein the two hybrid gear planes are components of a common partial transmission, which can be decoupled from the internal combustion engine and from the power takeoff side, during transmission operation and wherein, in particular in the partial transmission, the drive-side idler gear wheels of the two hybrid gear planes, arranged on the internal combustion engine shaft, are arranged together in a torque-proof manner on a hollow shaft, which is rotationally mounted coaxially on the internal combustion engine shaft and can be coupled to the internal combustion engine shaft via exactly one shifting component.

A hybrid drive train for a hybrid-drive vehicle, comprising:

• a transmission, in particular a manual transmission, which can be shifted into different gear ratios by shifting components, and which can be drivingly connected to an internal combustion engine via an internal combustion engine shaft, to an electric motor via an electric motor shaft, and to at least one vehicle axle via an output shaft, wherein the internal combustion engine shaft and a power takeoff shaft that is drivingly connected to the output shaft can be connected via spur gear wheel sets, which can be selected by the shifting components and each of which forms a gear plane, wherein the gear planes include a first and a second hybrid gear plane, each of which can additionally be drivingly connected to the electric motor shaft, and wherein the electric motor can be connected to the internal combustion engine via the first hybrid gear plane, forming a first load path, and can be connected to the internal combustion engine via the second hybrid gear plane, forming a second load path, while at the same time, the power takeoff shaft connected to the output shaft is decoupled from the respective load path, wherein the electric motor shaft is connected via a first shifting component to the first hybrid plane and via a second shifting component to the second hybrid plane, wherein the electric motor-side gear wheel of the first hybrid plane is arranged, in particular torque-proof, on a hollow shaft which is coaxial to the electric motor shaft, and in particular in that the hollow shaft can be connected via the first shifting component, in particular a clutch, to the electric motor shaft, and wherein the gear wheel of the second hybrid plane is arranged in a torque-proof manner on a solid shaft guided coaxially through the hollow shaft, and wherein the solid shaft can be connected to the electric motor shaft via the second shifting component, in particular a clutch, wherein the first shifting component is a one-way clutch, and in that the electric motor-side gear wheel of the first hybrid gear plane can be connected via the one-way clutch to the hollow shaft that is connected in a torque-proof manner to the electric motor shaft, and wherein the one-way clutch is associated with a shifting component, wherein in a first shifting position, the shifting component permits a transmission of torque from the electric motor shaft to the hollow shaft and prevents such transmission in the opposite direction, and in a second shifting position said shifting component permits the transmission of torque in both directions.