A transmission includes an input shaft coupled to a prime mover, a countershaft, main shaft, and an output shaft, with gears between the countershaft and the main shaft. A shift actuator selectively couples the input shaft to the main shaft by rotatably coupling gears between the countershaft and the main shaft. The shift actuator is mounted on an exterior wall of a housing including the countershaft and the main shaft. An integrated actuator housing includes a single external power access for the shift actuator. A controller interprets a shaft displacement angle, determines if the transmission is in an imminent zero or zero torque region, and performs a transmission operation in response to the transmission in the imminent zero or zero torque region.

Methods and systems are provided for a vehicle system. In one example, the vehicle system includes a first electric drive axle assembly and a second electric drive axle assembly. Each of the first and second axle assemblies has a gear train with a planetary gear set axially offset from a motor-generator. Each planetary gear set is rotationally coupled to a differential.

A transmission includes an input shaft coupled to a prime mover, a countershaft, main shaft, and an output shaft, with gears between the countershaft and the main shaft. A shift actuator selectively couples the input shaft to the main shaft by rotatably coupling gears between the countershaft and the main shaft. The shift actuator is mounted on an exterior wall of a housing including the countershaft and the main shaft. An integrated actuator housing is operationally coupled to the shift actuator and a linear clutch actuator. The linear clutch actuator is a self-adjusting actuator, and the transmission includes a self-adjusting clutch.

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 powertrain comprising a transmission (2), a first electric motor (4a) and a second electric motor (4b), the transmission having an input shaft (1) to which a source of mechanical power may be connected, an output shaft (6) and a gear assembly providing at least two different gear ratios that may be selected for transfer of mechanical power from the input shaft (1) to the output shaft (6), the first electric motor (4a) is connected to the input shaft (1), such that torque and rotation may be transferred between the first electric motor and the input shaft, and the second electric motor (4b) is connected to the input shaft (1) via a first clutch (5a), such that torque and rotation may be transferred between the second electric motor (4b) and the input shaft (1), and connected to the output shaft (6) via a second clutch (5b), such that torque and rotation may be transferred between the second electric motor (4b) and the output shaft (6), wherein the first electric motor (4a) is connected to the second electric motor (4b) via the first clutch (5a).

A portal axle drive for a vehicle axle of an electric vehicle with driving wheels includes a drive shaft (AN) with an input axis (a) and an output shaft (AB) with an output and wheel axis (b). The input axis (a) and the output axis (b) have an axial or portal offset (c). A first gear stage (Ü1) is arranged between the drive shaft (AN) and the output shaft (AB). In an axial direction, a second gear stage (Ü2) is arranged next to the first gear stage (Ü1) and an engagement device (SE) is arranged next to the second gear stage (Ü2). The first gear stage (Ü1) and the second gear stage (Ü2) are engageable via the engagement device (SE).

A drive arrangement for a motor vehicle comprises an electric driving engine, an internal combustion engine, and a shift transmission having several gears and a multiple clutch. A first transmission element of the shift transmission is coupled in a torque-tight manner to a first rotational part of the multiple clutch and a second transmission element of shift transmission is coupled in a torque-tight manner to a second rotational part of the multiple clutch. A rotor of the electric driving engine is coupled in a torque-tight manner to a third rotational part of the multiple clutch, wherein the internal combustion engine is coupled in a torque-tight manner to a third transmission element of the shift transmission.

A transfer case having, a transmission mount, an input shaft received through the transmission mount, an electric propulsion motor, a transfer case portion and a transmission portion. The transfer case portion has a transfer case portion input, a first transfer case portion output, a second transfer case portion output, and a power transfer mechanism, the first transfer case portion output being drivingly coupled to the transfer case input portion, the power transfer mechanism drivingly coupling the second transfer case portion output to the first transfer case output portion. the transmission portion has a first coupling, which is selectively operable for drivingly connecting the input shaft to the transfer case portion input, and a second coupling that is selectively operable for drivingly connecting a rotor of the electric propulsion motor to the transfer case portion input.

Methods and systems for an electric drive axle of a vehicle are provided. An electric drive axle system includes, in one example a gear train configured to rotationally attach to an electric motor-generator, the gear train includes an output shaft having a clutch arranged thereon and configured to selectively rotationally couple a gear to the output shaft. The gear train further includes a lubrication channel extending between an output shaft and an axle shaft and including an outlet extending through the output shaft and opening into the clutch.

A gearbox arrangement of an electric machine of an engine includes a planetary gear arrangement configured to receive rotational input from the electric machine and from the engine and to mechanically couple the electric machine and the engine in first and second power flow directions, the planetary gear set comprising a ring gear, a ring brake, a free-wheel clutch attachable to a fixed structure and the ring brake, the tree-wheel clutch permitting rotation of the ring brake in a first direction and preventing rotation of the ring brake in an opposite second direction, and an arrangement for moving the ring gear between a first position in which the ring gear is non-rotatably engaged with the ring brake and a second position in which the ring gear is non-rotatably engaged with the carrier. An engine starter and power generator device Is also provided.