Patent number: 11338661
Abstract: A transmission (G) for a motor vehicle includes an electric machine (EM1), a first input shaft (GW1), a second input shaft (GW2), an output shaft (GWA), three planetary gear sets (P1, P2, P3), and at least six shift elements (A, B, C, D, E, F). Different gears are implementable by selectively actuating the at least six shift elements (A, B, C, D, E, F) and, in addition, in interaction with the electric machine (EM1), different operating modes are implementable. A drive train for a motor vehicle with such a transmission (G) and to a method for operating same are also provided.
Type:
Grant
Filed:
September 16, 2019
Date of Patent:
May 24, 2022
Assignee:
ZF FRIEDRICHSHAFEN AG
Inventors:
Stefan Beck, Matthias Horn, Johannes Kaltenbach, Uwe Griesmeier, Michael Wechs, Fabian Kutter, Thomas Martin, Jens Moraw, Gerhard Niederbrucker
Publication number: 20220153122
Abstract: A transmission arrangement (16) for a motor vehicle drive train (10), includes a first shaft arrangement (24, 26) and a second shaft arrangement (28), a plurality of engageable gear sets (36, 38, 42, 48, 50), which connect the first shaft arrangement (24, 26) and the second shaft arrangement (28) in order to establish at least one appropriate plurality of gear steps (1-5), and a plurality of at least three gearshift clutches (B, D, C) for engaging at least some (38, 48, 50) of the gear sets (36, 38, 42, 48, 50). Two (B, D) of the three gearshift clutches (B, D, C) form a gearshift clutch assembly (52), which is arranged at one (28) of the shaft arrangements (24, 26; 28). One gearshift clutch (C) of the three gearshift clutches (B, D, C) is arranged at the other shaft arrangement (24, 26) and, with the gearshift clutch assembly (52), is arranged in a gearshift clutch plane (E2).
Type:
Application
Filed:
October 15, 2019
Publication date:
May 19, 2022
Inventors:
Stefan Beck, Thomas Martin, Fabian Kutter, Matthias Horn, Michael Wechs, Johannes Kaltenbach, Martin Brehmer, Thomas Kroh, Oliver Bayer, Peter Ziemer, Max Bachmann
Publication number: 20220136589
Abstract: 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).
Type:
Application
Filed:
October 15, 2019
Publication date:
May 5, 2022
Inventors:
Stefan Beck, Fabian Kutter, Matthias Horn, Thomas Martin, Michael Wechs, Johannes Kaltenbach, Martin Brehmer, Peter Ziemer, Thomas Kroh, Oliver Bayer, Max Bachmann
Publication number: 20220126675
Abstract: A hybrid transmission (10) for a motor vehicle drive train with an internal combustion engine (55) and an electric prime mover (18) is provided. The hybrid transmission (10) includes a first sub-transmission (10a) with multiple gear steps and a first transmission input shaft (12), a second sub-transmission (10b) with multiple gear steps and a second transmission input shaft (14), a countershaft (16), multiple shift elements (A, B, C, D, E) for engaging the gear steps (1, 2, 3, 4, 5), and gearwheel pairs of idler gears (28, 32, 36, 40, 44) and fixed gears (26, 30, 34, 38, 42) for forming the gear steps, arranged in multiple gear set planes. A portion of the gear steps is engageable for the internal combustion engine, and a portion of the gear steps is engageable for the electric prime mover. The gearwheel pairs for forming the gear steps having the lowest and the second-lowest ratios are fixedly associated with the first sub-transmission.
Type:
Application
Filed:
October 15, 2019
Publication date:
April 28, 2022
Inventors:
Stefan Beck, Fabian Kutter, Martin Brehmer, Matthias Horn, Thomas Martin, Michael Wechs, Thomas Kroh, Oliver Bayer, Peter Ziemer, Johannes Kaltenbach, Max Bachmann
Patent number: 11305635
Abstract: A transmission (G) for a motor vehicle includes an electric machine (EM1), a first input shaft (GW1), a second input shaft (GW2), an output shaft (GWA), three planetary gear sets (P1, P2, P3), and at least six shift elements (A, B, C, D, E, F). Different gears are implementable by selectively actuating the at least six shift elements (A, B, C, D, E, F) and, in addition, in interaction with the electric machine (EM1), different operating modes are implementable. A drive train for a motor vehicle with such a transmission (G) and to a method for operating same are also provided.
Type:
Grant
Filed:
September 16, 2019
Date of Patent:
April 19, 2022
Assignee:
ZF FRIEDRICHSHAFEN AG
Inventors:
Stefan Beck, Matthias Horn, Johannes Kaltenbach, Uwe Griesmeier, Fabian Kutter, Thomas Martin, Michael Wechs, Gerhard Niederbrucker, Jens Moraw