Patents by Inventor Thomas OBERBUCHNER

Thomas OBERBUCHNER 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).

  • Patent number: 11933388
    Abstract: A powershift transmission has a split group with a plurality of powershift stages and an input shaft that can be rotatably driven by a drive shaft of a motorized drive. The input shaft transmits in a stepped-up manner to an output shaft of the split group a rotational movement corresponding to a selected powershiftable stage transmission. A synchromesh transmission group has at least four gear stages and can be rotatably driven by the output shaft of the split group via an intermediate group located therebetween, and via the output shaft of the synchromesh transmission group an axle transmission of the motor vehicle can be rotatably driven. The intermediate group has first and second switching elements each having an output shaft that can be coupled by means of a switchable clutch to an idler. First and second output gears are arranged on the output shaft of the synchromesh transmission group.
    Type: Grant
    Filed: October 28, 2022
    Date of Patent: March 19, 2024
    Assignee: ZF Friedrichshafen AG
    Inventors: Michael Haas, Martin Dankesreiter, Thomas Oberbuchner, Thomas Pauli, Stefan Igl
  • Publication number: 20230140641
    Abstract: A powershift transmission has a split group with a plurality of powershift stages and an input shaft that can be rotatably driven by a drive shaft of a motorized drive. The input shaft transmits in a stepped-up manner to an output shaft of the split group a rotational movement corresponding to a selected powershiftable stage transmission. A synchromesh transmission group has at least four gear stages and can be rotatably driven by the output shaft of the split group via an intermediate group located therebetween, and via the output shaft of the synchromesh transmission group an axle transmission of the motor vehicle can be rotatably driven. The intermediate group has first and second switching elements each having an output shaft that can be coupled by means of a switchable clutch to an idler. First and second output gears are arranged on the output shaft of the synchromesh transmission group.
    Type: Application
    Filed: October 28, 2022
    Publication date: May 4, 2023
    Applicant: ZF Friedrichshafen AG
    Inventors: Michael Haas, Martin Dankesreiter, Thomas Oberbuchner, Thomas Pauli, Stefan Igl
  • Publication number: 20230121147
    Abstract: An agricultural machine transmission has a powershiftable main group arranged upstream or downstream of a powershiftable split group in the direction of force transfer. The split group has an input shaft, an output shaft, and powershift elements, which when selectively actuated permit configurations of at least six different forward gears and at least three different reverse gears between the input shaft and the output shaft of the split group. A driveshaft of the main group is connectable by a first powershift clutch to a first input shaft and is connectable by a second powershift clutch to a second input shaft of the main group. Spur gear stages of the main group can be integrated into the force transfer path by actuating an associated shift element, coupling an associated input shaft to the drive shaft of the main group by configuring a respective gear of the main group.
    Type: Application
    Filed: October 14, 2022
    Publication date: April 20, 2023
    Applicant: ZF Friedrichshafen AG
    Inventors: Martin Dankesreiter, Thomas Oberbuchner, Thomas Pauli, Michael Haas, Anton Eder, Stefan Igl, Simone Landshuter, Thomas Spießl
  • Publication number: 20230103790
    Abstract: An electric vehicle transmission has a first driveshaft configured to be coupled to a first electric machine, and a main drive output shaft configured to be coupled to at least one drive axle. At least one gear-shifting element is provided, which when respectively actuated enables the first driveshaft and the main drive output shaft to be coupled to one another by way of a gear. The transmission can be provided in an electric vehicle in which electric machines can be integrated to provide drive power and to operate an auxiliary drive output. In addition, a second driveshaft serves to be coupled to a second electric machine and which can be coupled to an auxiliary driveshaft. In this case a shifting element is present, which when actuated couples the second driveshaft with the main drive output shaft. A method of operating an electric utility vehicle drive system is also disclosed.
    Type: Application
    Filed: September 23, 2022
    Publication date: April 6, 2023
    Applicant: ZF Friedrichshafen AG
    Inventors: Stefan Igl, Thomas Oberbuchner
  • Publication number: 20230056250
    Abstract: A powershift transmission of a motor vehicle has a split group with a plurality of powershift stages. An input shaft can be rotatably driven by a drive shaft of a motorized drive and transmits rotational movement in a stepped-up manner to an output shaft of the split group corresponding to one of several powershiftable stage transmissions. The powershiftable stage transmissions can be rotatably driven in a stepped-up manner by the output shaft of the split group via an intermediate group located therebetween, and via an input shaft of a synchromesh transmission group having a plurality of gear stages. A vehicle axle transmission can be rotatably driven by the output shaft of the synchromesh transmission group. The intermediate group has a multiple powershift intermediate transmission, in which each switching position the input shaft of the synchromesh transmission group can be rotatably driven by means of an associated transmission.
    Type: Application
    Filed: August 8, 2022
    Publication date: February 23, 2023
    Applicant: ZF Friedrichshafen AG
    Inventors: Michael Haas, Martin Dankesreiter, Anton Eder, Thomas Pauli, Thomas Spießl, Thomas Oberbuchner, Stefan Igl, Simone Landshuter
  • Patent number: 11125309
    Abstract: A transmission assembly including a torque input shaft and a torque output shaft and input idler gears, input fixed gears and shift elements, each of which is associated with an input idler gear, are arranged on the torque input shaft, and output idler gears, output fixed gears and shift elements, each of which are associated with an output idler gear, are arranged on the torque output shaft, with the result that a plurality of different torque transmission paths from the torque input shaft to the torque output shaft may be implemented. The transmission arrangement has an additional torque transmission path that may be implemented. The additional torque transmission path runs from the torque input shaft through a double gear to the torque output shaft. The transmission assembly can be included in a corresponding overall transmission which can be installed in an agricultural machine.
    Type: Grant
    Filed: May 17, 2016
    Date of Patent: September 21, 2021
    Assignee: ZF FRIEDRICHSHAFEN AG
    Inventors: Thomas Pauli, Stefan Igl, Thomas Oberbuchner, Michael Haas, Marco Devoti
  • Patent number: 10968984
    Abstract: A transmission arrangement (1) for a vehicle, such as an agricultural working machine, that can be shifted under full load, including a plurality of torque-transmitting branches formed, on the drive input side, by alternatively shiftable gear stages of a splitter transmission (2) and, on the drive output side, by alternatively shiftable gear stages of a synchromesh transmission (3), so that each torque-transmitting branch is defined by engaging a gear of the splitter transmission (2) and by engaging a gear of the synchromesh transmission (3). The synchromesh transmission (3) has two input shafts (9, 10), each respectively in driving association with a powershiftable element (4, 5). The splitter transmission (2) is designed as a powershiftable splitter transmission (2) and the powershiftable elements (4, 5) are arranged in the force flow direction, after the splitter transmission (2) but before the synchromesh transmission (3).
    Type: Grant
    Filed: March 14, 2016
    Date of Patent: April 6, 2021
    Assignee: ZF FRIEDRICHSHAFEN AG
    Inventors: Thomas Pauli, Stefan Igl, Thomas Oberbuchner
  • Patent number: 10837523
    Abstract: A splitter transmission including an input shaft, an output shaft and a countershaft. Two disk clutches, that can be coupled by a respective common clutch bell, are arranged on each of the input shaft, the output shaft and the countershaft. The clutch bells have external teeth. The disk clutches are in each case connected in a rotationally fixed manner to a loose wheel or to a fixed wheel. The input shaft is in direct engagement with the output shaft and with the countershaft. The splitter transmission is characterized by the fact that the output shaft is engaged with the countershaft exclusively in an indirect manner. The splitter transmission can be combined with a group transmission and an agricultural working machine.
    Type: Grant
    Filed: March 14, 2016
    Date of Patent: November 17, 2020
    Assignee: ZF FRIEDRICHSHAFEN AG
    Inventors: Thomas Pauli, Stefan Igl, Thomas Oberbuchner
  • Publication number: 20180320786
    Abstract: An arrangement for actuating at least one shifting element of a transmission. The arrangement has at least one hydraulically actuated actuating piston (1) for axially moving a shifting fork (2) of the shifting element.
    Type: Application
    Filed: October 5, 2016
    Publication date: November 8, 2018
    Inventors: Thomas PAULI, Stefan IGL, Thomas OBERBUCHNER, Anton EDER, Christoph BAUER, Stefan MICHL, Thomas BAUER, Ulf JARCZAK
  • Publication number: 20180187760
    Abstract: A transmission assembly including a torque input shaft and a torque output shaft and input idler gears, input fixed gears and shift elements, each of which is associated with an input idler gear, are arranged on the torque input shaft, and output idler gears, output fixed gears and shift elements, each of which are associated with an output idler gear, are arranged on the torque output shaft, with the result that a plurality of different torque transmission paths from the torque input shaft to the torque output shaft may be implemented. The transmission arrangement has an additional torque transmission path that may be implemented. The additional torque transmission path runs from the torque input shaft through a double gear to the torque output shaft. The transmission assembly can be included in a corresponding overall transmission which can be installed in an agricultural machine.
    Type: Application
    Filed: May 17, 2016
    Publication date: July 5, 2018
    Inventors: Thomas PAULI, Stefan IGL, Thomas OBERBUCHNER, Michael HAAS, Marco DEVOTI
  • Publication number: 20180106331
    Abstract: A splitter transmission including an input shaft, an output shaft and a countershaft. Two disk clutches, that can be coupled by a respective common clutch bell, are arranged on each of the input shaft, the output shaft and the countershaft. The clutch bells have external teeth. The disk clutches are in each case connected in a rotationally fixed manner to a loose wheel or to a fixed wheel. The input shaft is in direct engagement with the output shaft and with the countershaft. The splitter transmission is characterized by the fact that the output shaft is engaged with the countershaft exclusively in an indirect manner. The splitter transmission can be combined with a group transmission and an agricultural working machine.
    Type: Application
    Filed: March 14, 2016
    Publication date: April 19, 2018
    Inventors: Thomas PAULI, Stefan IGL, Thomas OBERBUCHNER
  • Publication number: 20180058549
    Abstract: A transmission arrangement (1) for a vehicle, such as an agricultural working machine, that can be shifted under full load, including a plurality of torque-transmitting branches formed, on the drive input side, by alternatively shiftable gear stages of a splitter transmission (2) and, on the drive output side, by alternatively shiftable gear stages of a synchromesh transmission (3), so that each torque-transmitting branch is defined by engaging a gear of the splitter transmission (2) and by engaging a gear of the synchromesh transmission (3). The synchromesh transmission (3) has two input shafts (9, 10), each respectively in driving association with a powershiftable element (4, 5). The splitter transmission (2) is designed as a powershiftable splitter transmission (2) and the powershiftable elements (4, 5) are arranged in the force flow direction, after the splitter transmission (2) but before the synchromesh transmission (3).
    Type: Application
    Filed: March 14, 2016
    Publication date: March 1, 2018
    Inventors: Thomas PAULI, Stefan IGL, Thomas OBERBUCHNER