Patents by Inventor Jens LUCKMANN
Jens LUCKMANN has filed for patents to protect the following inventions. This listing includes patent applications that are pending as well as patents that have already been granted by the United States Patent and Trademark Office (USPTO).
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Publication number: 20240141972Abstract: A group transmission device includes a main transmission which has a main shaft, a countershaft and a spur gear pair which includes a first spur gear arranged coaxially and axially overlapping with the main shaft and a second spur gear arranged coaxially and axially overlapping with the countershaft. A range group has a first shaft non-rotationally connected to the main shaft, a second shaft non-rotationally connected to a transmission output shaft, a third shaft and a blocking switching unit. A first switching unit non-rotationally connects the third shaft to a housing. A second switching unit has an axially shiftable switching element and non-rotationally connects the third shaft to the first spur gear. The main shaft is coupled non-rotationally to a transmission input shaft. A third switching unit has an axially shiftable further switching element and non-rotationally connects the first spur gear to the first shaft of the range group.Type: ApplicationFiled: October 7, 2020Publication date: May 2, 2024Inventors: Frank STEFFENS, Marc STROELIN, Jens LUCKMANN
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Publication number: 20240141971Abstract: A group transmission device includes an upshift assembly with a first transmission element, a second transmission element and a third transmission element. A downshift assembly has a first transmission element, a second transmission element and a third transmission element. A main shaft is arranged coaxially to the upshift assembly and a layshaft is arranged parallel to the main shaft. A first idler gear is arranged coaxially to the main shaft and axially between the upshift assembly and the downshift assembly and is connectable to the main shaft for conjoint rotation by a first shift unit. The first idler gear is connectable to the third transmission element of the downshift assembly for conjoint rotation by a second shift unit.Type: ApplicationFiled: October 7, 2020Publication date: May 2, 2024Inventors: Frank STEFFENS, Marc STROELIN, Jens LUCKMANN, Marc KLEIN, Detlef SCHNITZER
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Publication number: 20240026960Abstract: An electric drive system has a group transmission with a main group and a range group with a planetary gear set. First and second input shafts of the main group are respectively coupled with first and second electric engines. An output shaft of the main group is coupled with a first element of the planetary gear set and a second element of the planetary gear set is coupled with an output drive shaft of the group transmission. Two idler wheels are disposed coaxially to the first input shaft and two further idler wheels are disposed coaxially to the second input shaft. The first and second input shafts are coupled with the output shaft via two fixed gears. A first fixed gear engages with the first and third idler wheels and a second fixed gear engages with the second and fourth idler wheels.Type: ApplicationFiled: August 12, 2021Publication date: January 25, 2024Inventors: Frank STEFFENS, Marc STROELIN, Jens LUCKMANN
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Publication number: 20230059031Abstract: A hybrid-electric powertrain includes an internal combustion engine, a transmission, and an electric machine, where the electric machine is connected to the transmission for transmitting torque. The transmission has a transmission housing, within which there is disposed an output-side gear set assembly, and also a transmission housing cover disposed on an output side of the transmission as seen in an axial direction. The electric machine has a stator, a rotor, a rotor shaft connected to the rotor for conjoint rotation, and an electric machine housing. In addition, the electric machine has a connection housing for connecting the electric machine to the transmission housing. The rotor shaft of the electric machine is disposed parallel to a transmission input shaft of the transmission.Type: ApplicationFiled: February 2, 2021Publication date: February 23, 2023Inventors: Guenter KAYRAN, Jens LUCKMANN, Detlef SCHNITZER, Frank STEFFENS
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Patent number: 11313442Abstract: A range-change transmission device, which is a splitter transmission, includes an input shaft, an output shaft, a countershaft, at least one planetary gear set, and a torque adjustment device. A first transmission element of the planetary gear set is arranged coaxially to the output shaft. A second transmission element of the planetary gear set is or can be directly coupled to the countershaft. A third transmission element of the planetary gear set is permanently coupled to the input shaft in a rotationally fixed manner. The countershaft is or can be coupled to the torque adjustment device. The range-change transmission device has a first switching unit, which is provided to couple the countershaft to the output shaft.Type: GrantFiled: June 25, 2018Date of Patent: April 26, 2022Assignee: DAIMLER AGInventors: Frank Steffens, Detlef Schnitzer, Ingo Pfannkuchen, Jens Luckmann
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Publication number: 20210148438Abstract: A range-change transmission device, which is a splitter transmission, includes an input shaft, an output shaft, a countershaft, at least one planetary gear set, and a torque adjustment device. A first transmission element of the planetary gear set is arranged coaxially to the output shaft. A second transmission element of the planetary gear set is or can be directly coupled to the countershaft. A third transmission element of the planetary gear set is permanently coupled to the input shaft in a rotationally fixed manner. The countershaft is or can be coupled to the torque adjustment device. The range-change transmission device has a first switching unit, which is provided to couple the countershaft to the output shaft.Type: ApplicationFiled: June 25, 2018Publication date: May 20, 2021Inventors: Frank STEFFENS, Detlef SCHNITZER, Ingo PFANNKUCHEN, Jens LUCKMANN
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Patent number: 11009102Abstract: A range-change transmission device includes an input shaft, an intermediate shaft, a countershaft, a transmission output shaft, and a first planetary gear set. A first transmission element of the first planetary gear set is permanently coupled to the intermediate shaft in a rotationally fixed manner. A second transmission element of the first planetary gear set is coupled to the transmission output shaft. A first switching unit is provided to arrange a third transmission element of the first planetary gear set to be fixed to the housing in at least one switching position. The range-change transmission device also includes a second planetary gear set. A third transmission element of the second planetary gear set is permanently coupled to the intermediate shaft in a rotationally fixed manner.Type: GrantFiled: June 25, 2018Date of Patent: May 18, 2021Assignee: DAIMLER AGInventors: Frank Steffens, Detlef Schnitzer, Ingo Pfannkuchen, Jens Luckmann
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Patent number: 11002351Abstract: A range-change transmission device includes a main shaft, an output shaft, and a range-change unit. The range-change unit has at least one planetary gearbox, which includes at least one first gearbox element, at least one second gearbox element, and at least one third gearbox element. The range-change unit also has at least one shifting device, which is provided at least for the selective connection of the main shaft to the first gearbox element and/or to the second gearbox element.Type: GrantFiled: September 18, 2017Date of Patent: May 11, 2021Assignee: DAIMLER AGInventors: Ingo Pfannkuchen, Detlef Schnitzer, Frank Steffens, Jens Luckmann
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Publication number: 20210025481Abstract: A range-change transmission device includes an input shaft, an intermediate shaft, a countershaft, a transmission output shaft, and a first planetary gear set. A first transmission element of the first planetary gear set is permanently coupled to the intermediate shaft in a rotationally fixed manner. A second transmission element of the first planetary gear set is coupled to the transmission output shaft. A first switching unit is provided to arrange a third transmission element of the first planetary gear set to be fixed to the housing in at least one switching position. The range-change transmission device also includes a second planetary gear set. A third transmission element of the second planetary gear set is permanently coupled to the intermediate shaft in a rotationally fixed manner.Type: ApplicationFiled: June 25, 2018Publication date: January 28, 2021Applicant: DaiMler AGInventors: Frank STEFFENS, Detlef SCHNITZER, Ingo PFANNKUCHEN, Jens LUCKMANN
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Publication number: 20190316664Abstract: A range-change transmission device includes a main shaft, an output shaft, and a range-change unit. The range-change unit has at least one planetary gearbox, which includes at least one first gearbox element, at least one second gearbox element, and at least one third gearbox element. The range-change unit also has at least one shifting device, which is provided at least for the selective connection of the main shaft to the first gearbox element and/or to the second gearbox element.Type: ApplicationFiled: September 18, 2017Publication date: October 17, 2019Inventors: Ingo PFANNKUCHEN, Detlef SCHNITZER, Frank STEFFENS, Jens LUCKMANN