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
Patent number: 11254199
Abstract: A transmission (G) includes an input shaft (GW1), an output shaft (GW2), an electric machine (EM), a plurality of planetary gear sets (P1-P3; 2P1-2P5), and gear-implementing shift elements (S1-S6; 2S1-2S5). Via engagement of a first of the gear-implementing shift elements (S1, 2S1), which is a force-locking shift element having a variable torque transmission capacity, the input shaft (GW1) and an element (E1, 22E1) of one of the planetary gear sets (P3; 2P4) can be brought into a fixed rotational speed relationship with respect to each other. Another element (E2, 22E2a, 22E2b) of one of the planetary gear sets (P1, 2P3, 2P5) is permanently connected to a rotor (R) of the electric machine (EM). By engaging an auxiliary shift element (ZS, 2ZSa, 2ZSb), which is a form-locking shift element, the rotor (R) and the input shaft (GW1) can be brought into a fixed rotational speed relationship with respect to each other.
Type:
Grant
Filed:
December 5, 2018
Date of Patent:
February 22, 2022
Assignee:
ZF FRIEDRICHSHAFEN AG
Inventors:
Martin Brehmer, Stefan Beck, Anton Fritzer, Suryanto Hendrawan, Matthias Horn, Johannes Kaltenbach, Raffael Kuberczyk, Jens Moraw, Gerhard Niederbrucker, Martin Rattay, Matthias Reisch, Wolfgang Rieger, Thomas Rosemeier, Lara Ruth Turner, Bernd Unseld, Viktor Warth, Michael Wechs, Peter Ziemer, Oliver Bayer
Publication number: 20220009332
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 different operating modes are implementable by selectively actuating the at least six shift elements (A, B, C, D, E, F) in interaction with the electric machine (EM1). A drive train for a motor vehicle with the transmission (G) and a method for operating the transmission (G) are also provided.
Type:
Application
Filed:
October 14, 2019
Publication date:
January 13, 2022
Inventors:
Stefan Beck, Matthias Horn, Johannes Kaltenbach, Uwe Griesmeier, Fabian Kutter, Thomas Martin, Michael Wechs, Jens Moraw, Gerhard Niederbrucker
Publication number: 20220010863
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 different operating modes are implementable by selectively actuating the at least six shift elements (A, B, C, D, E, F) in interaction with the electric machine (EM1). A drive train for a motor vehicle with the transmission (G) and a method for operating the transmission (G) are also provided.
Type:
Application
Filed:
October 14, 2019
Publication date:
January 13, 2022
Inventors:
Stefan Beck, Johannes Kaltenbach, Matthias Horn, Thomas Martin, Fabian Kutter, Uwe Griesmeier, Michael Wechs, Jens Moraw, Gerhard Niederbrucker
Publication number: 20210379981
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:
Application
Filed:
September 16, 2019
Publication date:
December 9, 2021
Inventors:
Stefan Beck, Matthias Horn, Johannes Kaltenbach, Uwe Griesmeier, Michael Wechs, Fabian Kutter, Thomas Martin, Jens Moraw, Gerhard Niederbrucker
Publication number: 20210370758
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:
Application
Filed:
September 16, 2019
Publication date:
December 2, 2021
Inventors:
Stefan Beck, Matthias Horn, Johannes Kaltenbach, Uwe Griesmeier, Fabian Kutter, Thomas Martin, Michael Wechs, Gerhard Niederbrucker, Jens Moraw