Methods and systems for a clutch assembly in an electric drive axle of a vehicle are provided. In one example, a clutch assembly in a gear train is provided that includes a locking clutch. The locking clutch includes a gear including a plurality of teeth having at least one tooth with a tapered end, an indexing shaft rotationally connected to an output shaft, a shift collar mounted on the indexing shaft, configured to translate on the indexing shaft into an engaged and disengaged configuration, and including a plurality of teeth on a face, where at least one tooth in the plurality of teeth in the shift collar includes a tapered end, and an indexing mechanism coupled to the shift collar and the indexing shaft and configured to accommodate for indexing between the indexing shaft and the shift collar during shift collar engagement.

An actuator assembly for actuating two switching units in the driveline of a motor vehicle comprises a housing; an actuator drive; a switching rod arranged in the housing and axially movable by the actuator drive in three positions; a first switching element and a second switching element axially movably arranged on the switching rod; a spring element which biases the first switching element against a first shaft stop and the second switching element against a second shaft stop; a first housing stop against which the first switching element can be axially supported; and a second housing stop against which the second switching element can be axially supported. A transmission assembly can include such an actuator assembly.

An actuator assembly for actuating two switching units in the driveline of a motor vehicle comprises a housing; an actuator drive; a switching rod arranged in the housing and axially movable by the actuator drive in three positions; a first switching element and a second switching element axially movably arranged on the switching rod; a spring element which biases the first switching element against a first shaft stop and the second switching element against a second shaft stop; a first housing stop against which the first switching element can be axially supported; and a second housing stop against which the second switching element can be axially supported. A transmission assembly can include such an actuator assembly.

A power transmission apparatus may include a first motor-generator including a first stator fixed to a first housing, and a first rotor; a second motor-generator including a second stator fixed to a second housing and a second rotor; a first planetary gear set including first and third rotation elements connected to the first rotor and a first wheel, respectively, and a third rotation element; a second planetary gear set including fourth, fifth and sixth rotation elements connected to the second rotor, a second wheel, and the third rotation element, respectively; a first clutch selectively locking up the first planetary gear set by selectively connecting two out of the first to third rotation elements; a second clutch selectively locking up the second planetary gear set by selectively connecting two of the fourth to sixth rotation elements; and a brake selectively fixing the third and sixth rotation elements to a third housing.

A power transmission apparatus may include a first motor-generator including a first stator fixed to a first housing, and a first rotor; a second motor-generator including a second stator fixed to a second housing and a second rotor; a first planetary gear set including first and third rotation elements connected to the first rotor and a first wheel, respectively, and a third rotation element; a second planetary gear set including fourth, fifth and sixth rotation elements connected to the second rotor, a second wheel, and the third rotation element, respectively; a first clutch selectively locking up the first planetary gear set by selectively connecting two out of the first to third rotation elements; a second clutch selectively locking up the second planetary gear set by selectively connecting two of the fourth to sixth rotation elements; and a brake selectively fixing the third and sixth rotation elements to a third housing.

A hybrid module for a drive train of a motor vehicle includes a housing, an electric machine disposed within the housing. The electric machine having a stator and a rotor arranged radially within the stator. The hybrid module having at least one hydraulically cooled friction clutch arranged radially within the rotor. A cooling device is provided that is configured to cool a plurality of friction surfaces of the at least one friction clutch and which has an annular collecting region coupled to the rotor for conjoint rotation therewith and entraining a hydraulic medium during operation, as well as a scoop section, which is secured to the housing and projects into the collecting region and via which the hydraulic medium is fed to a retaining chamber during operation.

A hybrid module for a drive train of a motor vehicle includes a housing, an electric machine disposed within the housing. The electric machine having a stator and a rotor arranged radially within the stator. The hybrid module having at least one hydraulically cooled friction clutch arranged radially within the rotor. A cooling device is provided that is configured to cool a plurality of friction surfaces of the at least one friction clutch and which has an annular collecting region coupled to the rotor for conjoint rotation therewith and entraining a hydraulic medium during operation, as well as a scoop section, which is secured to the housing and projects into the collecting region and via which the hydraulic medium is fed to a retaining chamber during operation.

An actuator assembly for actuating two switching units in the driveline of a motor vehicle comprises a housing; an actuator drive; a switching rod arranged in the housing and axially movable by the actuator drive in three positions; a first switching element and a second switching element axially movably arranged on the switching rod; a spring element which biases the first switching element against a first shaft stop and the second switching element against a second shaft stop; a first housing stop against which the first switching element can be axially supported; and a second housing stop against which the second switching element can be axially supported. A transmission assembly can include such an actuator assembly.

An actuator assembly for actuating two switching units in the driveline of a motor vehicle comprises a housing; an actuator drive; a switching rod arranged in the housing and axially movable by the actuator drive in three positions; a first switching element and a second switching element axially movably arranged on the switching rod; a spring element which biases the first switching element against a first shaft stop and the second switching element against a second shaft stop; a first housing stop against which the first switching element can be axially supported; and a second housing stop against which the second switching element can be axially supported. A transmission assembly can include such an actuator assembly.

The present invention relates to a clutch arrangement (500) of a vehicle transmission arrangement (100), the clutch arrangement (500) being positioned within a clutch bell housing (206) of the vehicle transmission and comprising a pneumatically controlled actuator arrangement (208) connectable to a first clutch unit (202) of the vehicle transmission arrangement (100) and arranged to controllably position the first clutch unit (202) between a closed position and an opened position, a pneumatically controlled brake actuator arrangement (210) connectable to a second clutch unit (204) of the transmission arrangement and arranged to controllably position the second clutch unit (204) between a closed position and an opened position, and a valve unit (302) connected to the pneumatically controlled actuator arrangement (208) and the pneumatically controlled brake actuator arrangement (210), wherein the valve unit (302) comprises a clutch valve (308) arranged in fluid communication with the pneumatically controlled actuator arrangement (210) for controlling supply of compressed air to the pneumatically controlled actuator arrangement (210), and a brake valve (318) arranged in fluid communication with the pneumatically controlled brake actuator arrangement (210) for controlling supply of compressed air to the pneumatically controlled brake actuator arrangement (210).