Methods and systems for a transmission are provided. In one example, the transmission includes an input shaft with a first pair of gears that reside thereon, a first clutch positioned between the first pair of gears and designed to selectively rotationally couple a selected gear in the first pair of gears to the input shaft, and a layshaft with a second pair of gears fixedly coupled thereto. The transmission further includes an output shaft with a third pair of gears that reside thereon and a second clutch positioned between the third pair of gears and designed to selectively rotationally couple a selected gear in the third pair of gears to the output shaft.

Methods and systems for a transmission are provided. In one example, the transmission includes an input shaft with a first pair of gears that reside thereon, a first clutch positioned between the first pair of gears and designed to selectively rotationally couple a selected gear in the first pair of gears to the input shaft, and a layshaft with a second pair of gears fixedly coupled thereto. The transmission further includes an output shaft with a third pair of gears that reside thereon and a second clutch positioned between the third pair of gears and designed to selectively rotationally couple a selected gear in the third pair of gears to the output shaft.

An electric drive for a vehicle and a vehicle is having at least one electric machine having a rotor shaft and a planetary transmission for dividing the torque introduced via the rotor shaft to a first output shaft and a second output shaft, wherein for decoupling the rotor shaft at least one switching element is provided relative to the torque transmission between the rotor shaft and an element of the planetary transmission.

A driveline component includes a first plate and a second plate. A motor is engaged with the first plate. The first plate and the second plate include ramped grooves that ramp toward the other of the first plate and the second plate. Balls are disposed between the first plate and the second plate and are engaged with the ramped grooves. A shifter is engaged with the second plate. Relative rotation of the first plate and the second plate causes the balls in the ramped grooves to move the first plate and the second plate axially relative to each other. This relative rotation may be used to make one type of mode selection, and operation of the shifter by the second plate may be used to make another type of mode selection. This allows the single motor to make both selections.

A driveline component includes a first plate and a second plate. A motor is engaged with the first plate. The first plate and the second plate include ramped grooves that ramp toward the other of the first plate and the second plate. Balls are disposed between the first plate and the second plate and are engaged with the ramped grooves. A shifter is engaged with the second plate. Relative rotation of the first plate and the second plate causes the balls in the ramped grooves to move the first plate and the second plate axially relative to each other. This relative rotation may be used to make one type of mode selection, and operation of the shifter by the second plate may be used to make another type of mode selection. This allows the single motor to make both selections.

An electrified drive train for a motor vehicle has a heat generator, which includes at least one electric drive machine; and a cooling circuit, which is led through the electric drive machine and has a heat exchanger for removing heat from the cooling circuit. With respect to the direction of flow of the fluid used in the cooling circuit, the heat exchanger is arranged in the cooling circuit downstream of the heat generator to be cooled.

A transmission assembly for a vehicle, includes a first input shaft gear wheel arranged on a first input shaft, a second input shaft first gear wheel and a second input shaft second gear wheel arranged axially offset with respect to each other on a second input shaft, an output shaft first gear wheel and an output shaft second gear wheel arranged axially offset with respect to each other on a common output shaft. The second input shaft first gear wheel meshes with the output shaft first gear wheel, and the first input shaft gear wheel and the second input shaft second gear wheel mesh with the output shaft second gear wheel. A first torque path is provided from the first input shaft to the output shaft.

A disconnector assembly for a wheel hub transmission where the wheel hub transmission may have an input shaft that receives an input torque from a drive unit. The disconnector assembly may have a first coupling portion driven by the input shaft, and a connector having a second coupling portion and being axially displaceable between a first axial position and a second axial position. Each of the first and second coupling portions may have at least two engagement sections and at least one disengagement section positioned between the engagement sections. The engagement sections of the first and second coupling portions may engage each other when the connector assumes the first axial position. When the connector assumes the second axial position, at least one engagement section of the first and second coupling portion may be received in the disengagement section of the respective other of the first and second coupling portion.

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 propulsion system for an electric vehicle includes an assembly of four electric propulsion machines each having a stator and a rotor having an output shaft that is movable in rotation about an axis. Also includes is a common gearwheel that is kinematically connected to the n output shafts and that is able to receive the torque provided by the electric machines so as to form a first speed reducer, and primary gearwheels able to be driven by the common gearwheel. An intermediate shaft is able to be driven by intermediate gearwheels, each primary gearwheel being kinematically connected to a corresponding intermediate gearwheel so as to form a pair of gears with which a second speed reducer is associated, and a secondary shaft that is able to drive the vehicle and that has a secondary gearwheel kinematically connected to the intermediate shaft so as to form a third speed reducer.