Motor vehicle transmission for a hybrid drive train, and hybrid drive train

Abstract

A motor vehicle transmission for a hybrid drive train of a motor vehicle with a first transmission input shaft (1) for receiving drive power from a first drive machine, with a second transmission input shaft (4) for receiving drive power from a second drive machine (EMA), wherein the second drive machine (EMA) is an electromechanical energy converter, with a first planetary gear set with a first sun pinion (8), a first ring gear (11) and a first planetary gear carrier (14), on which at least one first planetary gear is mounted rotatably, and with a second planetary gear set with a second sun pinion (9), a second ring gear (12) and a second planetary gear carrier (15), on which at least one second planetary gear is mounted rotatably, wherein the second transmission input shaft (4) is connected to the first sun pinion (8) for conjoint rotation, wherein the first transmission input shaft (1) can be selectively connected, or is connected, to the first planetary gear carrier (14) for conjoint rotation, wherein a transmission output shaft (2) is provided for outputting drive power from the transmission, wherein said transmission output shaft (2) can be selectively connected to the second ring gear (12) for conjoint rotation, wherein the first ring gear (11) can be connected to the second sun pinion (9) for conjoint rotation, wherein a first brake device (B03) is provided for selectively connecting the first ring gear (11) rotationally fixedly to a transmission housing (0), and wherein a first clutch device (K27) is provided for selectively connecting the second ring gear (12) to the transmission output shaft (2) for conjoint rotation.

Description

technical field [0001] The invention relates to a motor vehicle transmission for a hybrid drivetrain according to the preamble of claim 1 , such a transmission being known from the prior art, in particular from DE 10 2017 204 971 A1. Background technique [0002] The present invention will be described below based on a passenger car hybrid powertrain, which should not be construed as limiting the present invention. [0003] Current hybrid transmissions are often based on conventional automatic transmissions, which are designed for pure internal combustion engine drivetrains. For mixing, an electromechanical energy converter is additionally integrated as a second drive machine in the already limited installation space. This can lead to the disadvantage that, due to the limited installation space, only limited electrification is generally possible, especially with regard to electrically achievable drive performances, ie only relatively low drive / drive performances can be achi...

AI Technical Summary

Problems solved by technology

This can lead to the disadvantage that, due to the limited installation space, only limited electrification is usually possible, especially with regard to the electrically achievable drive power, i.e. only relatively low drive / drive power can be achieved with purely electric drive

Furthermore, such conventional automatic transmissions, which have been further developed as hybrid transmissions, are not specifically designed for hybrid drive trains

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