A hybrid transmission device includes at least one drive device (EM2) and a gear change transmission (4) having multiple forward gear steps (G1, G2, G3, G4, GE2). The forward gear steps (G1, G2, G3, G4, GE2) are distributed onto at least one first sub-transmission (36) and one second sub-transmission (38). At least one even forward gear step (G2, G4) and at least one odd forward gear step (G3) are arranged in the first sub-transmission (36).

A hybrid transmission device (3) may include at least one drive device (EM1, EM2), a first transmission input shaft (7), a second transmission input shaft (9) mounted on the first transmission input shaft (7), at least one countershaft (22), a plurality of gearwheels (10, 12, 14, 16, 18, 24, 26, 30, 32, 34), and at least two engagement devices (S1, S2, S3, S4). At least one first gearwheel is arranged on the first transmission input shaft (7), at least one second gearwheel is arranged on the second transmission input shaft (9), and at least one third gearwheel is arranged on the at least one countershaft (22). The engagement devices (S1, S2, S3, S4) are arranged on precisely two axes of rotation (A1, A2), including a first axis (A1) defined by the input shafts (7, 9) and a second axis (A2) defined by the at least one countershaft (22).

A hybrid transmission device (3) includes at least one electric motor (EM1, EM2), a first transmission input shaft (7), and a second transmission input shaft (9) mounted on the first transmission input shaft (7). A connecting clutch (K3) is configured for rotationally fixedly connecting the first transmission input shaft (7) and the second transmission input shaft (9). The second transmission input shaft (9) includes an end (11) facing toward the outer side of the hybrid transmission device (3) and an end (13) facing toward the inner side of the hybrid transmission device (3). The connecting clutch (K3) is arranged at the end (13) of the second transmission input shaft (9) facing toward the inner side of the hybrid transmission device (3).

A transmission (1) for a motor vehicle includes at least one input shaft (2) which can be connected to an internal combustion engine (VM) in a rotationally fixed manner and with at least one input shaft power transmission element, a first shaft (3) including at least one power transmission element, a second shaft (4) including at least one other power transmission element, and a transmission output shaft (5) which is engaged with the first shaft (3) and the second shaft (4). The transmission (1) includes at least one gear plane (RE), in which the at least one input shaft power transmission element is engaged with the at least one power transmission element and with the at least one other power transmission element. The transmission (1) includes precisely two gear planes, and the power transmission element and the other power transmission element are each an idler gear.

An engagement device (1) for a transmission (G), the engagement device (1) including a gear shift sleeve (S) arranged between a first idler gear (LR1) associated with a shaft (W) of the transmission (G) and a second idler gear (LR2) arranged coaxially to the shaft (W). By displacing the gear shift sleeve (S) towards the first idler gear (LR1), a rotationally fixed connection between the shaft (W) and the first idler gear (LR1) can be established. By displacing the gear shift sleeve (S) towards the second idler gear (LR2), a rotationally fixed connection between the first idler gear (LR1) and the second idler gear (LR2) can be established. The first idler gear (LR1) includes a plurality of axially projecting extensions (F) which extend through openings (A) formed in the gear shift sleeve (S).

A hybrid transmission device (3) includes at least one drive device (EM2) and a transmission (4) with a first transmission input shaft (12) and a second transmission input shaft (14) mounted on the first transmission input shaft (12). The at least one drive device (EM2) is arranged axially parallel and is connected to a gear-step gearwheel (16) arranged on the second transmission input shaft (14).

A connecting arrangement includes first and second idler gears (6, 7) arranged coaxially and connectable via an engagement unit. The engagement unit includes a coupling element coupled to the first idler gear (7) in a direction of rotation and axially movable between a home position and a coupling position. In the coupling position, the coupling element is coupled to the second idler gear (6) in addition to being coupled to the first idler gear (7) in the direction of rotation. In the home position, the coupling element and the second idler gear (6) are freely turnable with respect to each other. The first and second idler gears (6, 7) are helical-cut spur gears. The coupling element is guided in a helically extending guide (18) on the first idler gear (7) and, in the coupling position, engages into a helically extending engagement geometry (21) on the second idler gear (6).

A dual clutch transmission may include a first input shaft, a second input shaft, a first output shaft and a second output shaft; a first gear constrained to the first input shaft; a second gear and a third gear constrained to the second input shaft; a fourth gear provided to constrain the rotation to the second input shaft; a fifth gear which is engaged with the third gear; a sixth gear which is gear-engaged with the fourth gear; a seventh gear which is engaged with the first gear; an eighth gear which is gear-engaged with the second gear; and a ninth gear which is gear-engaged with the fourth gear.

Provided is a dual clutch transmission. First and second input shafts are mounted concentrically. First and second output shafts are mounted in parallel to the first input shaft and respectively include output gears engaged with a ring gear of a differential. The rotations of first and second gears are restrained by the first input shaft. The rotations of third and fourth gears are restrained by the second input shaft. The rotations of fifth and sixth gears engaged with the second and third gears, respectively, are restrained by the first output shaft. The rotation of a seventh gear engaged with the first gear is restrained by the second output shaft. An eighth gear is engaged with the second gear to be rotatable about the second output shaft. The rotation of a ninth gear engaged with the fourth gear and restrained by the eighth gear is restrained by the second output shaft.

A transmission for a hybrid drive assembly includes an input shaft, an output shaft, a first transmission shaft, a second transmission shaft, a third transmission shaft, first, second, and third shift elements, a first spur gear set, a second spur gear set, and a third spur gear set. The input shaft can be coupled to the first transmission shaft by the first shift element, the first transmission shaft is coupled to the first spur gear set, the first spur gear set can be coupled to the second transmission shaft by the second shift element, the second transmission shaft is coupled to the second spur gear set, and the second spur gear set is coupled to the third transmission shaft. The third transmission shaft is coupled to the third spur gear set and the third spur gear set can be coupled to the output shaft by the third shift element.