Patents by Inventor Stefan Renner

Stefan Renner 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: 10967725
    Abstract: A transmission for a hybrid drive having transmission input and output shafts, a further transmission input shaft and an electric machine, which drives the further transmission input shaft. A main transmission has first and second partial transmissions with a plurality of gear planes and a pair of concentric fourth shafts, and shift elements. A range group can couple the main transmission and has a planetary gearset with three transmission elements. The first element can couple either of the transmission input shafts via the shift elements. The second element is connected to the transmission output shaft and can couple a gear plane of the partial transmissions via the shift elements. The third transmission element can be fixed to the housing or blocked against the first or second transmission element.
    Type: Grant
    Filed: January 25, 2018
    Date of Patent: April 6, 2021
    Assignee: ZF FRIEDRICHSHAFEN AG
    Inventors: Johannes Kaltenbach, Rayk Gersten, Stefan Renner, Johannes Glückler, Christian Mittelberger, Kai Bornträger
  • Patent number: 10940749
    Abstract: A method of operating a vehicle having a hybrid drive, a transmission with shift elements, a drive output with a brake, a main transmission with input shafts, an output shaft and planetary gear sets (PG1, PG2). The main transmission has five gear planes. One shift element can connect a gear plane to an element of gear set (PG1) adjoining the main transmission. Another shift element couples a further element of gear set (PG1) either to the output shaft or a housing. An electric machine is permanently connected to an element of gear set (PG2). If, while driving with a transmission gear engaged, the drive output brake is engaged for a full brake application, a shift element of the transmission is first relieved by the electric machine and/or a brake assigned to one of the input shafts and then subsequently disengaged to decouple the combustion engine from the drive output.
    Type: Grant
    Filed: November 22, 2016
    Date of Patent: March 9, 2021
    Assignee: ZF FRIEDRICHSHAFEN AG
    Inventors: Michael Preuß, Johannes Kaltenbach, Christian Mittelberger, Johannes Glückler, Stefan Renner, Rayk Gersten
  • Patent number: 10875517
    Abstract: A manual transmission for a hybrid drive of a motor vehicle having transmission input shafts (1, 3) and an output shaft (2), an electric machine, and a plurality of shifting elements. The main transmission has a fourth shaft (4) and a plurality of wheel planes. A planetary transmission unit is associated with the electric machine which can be coupled to the main transmission. The planetary transmission unit has first, second and third transmission components. The plurality of shifting elements are selectively engageable to produce various gear ratios between input shaft (1) and output shaft (2) and/or shaft (3) and output shaft (2). The fourth shaft (4) is coupleable to an auxiliary power take-off and, in either a standstill or a driving gear, the fourth shaft (4) is in driving connection with shaft (1) and/or shaft (3) by way of one of the wheel planes.
    Type: Grant
    Filed: March 28, 2017
    Date of Patent: December 29, 2020
    Assignee: ZF Friedrichshafen AG
    Inventors: Rayk Gersten, Stefan Renner, Johannes Kaltenbach, Johannes Glückler
  • Publication number: 20200282827
    Abstract: A drive unit for an electric vehicle, having an electric machine and a three-speed shift transmission with first, second and third shift elements, and two planetary sets which are coupled with each other. The first planetary set has a first sun gear shaft, first ring gear shaft and a first carrier shaft. The second planetary set has a second sun gear shaft, a second ring gear shaft and second carrier shaft. The first carrier shaft is fixed to the second ring gear shaft. The first sun gear shaft can be driven by an electric machine. The first ring gear shaft is fixed and output takes place via the second carrier shaft. The first shift elements are actuated to engage a first gear, the second shift elements are actuated to engage the second gear and the third shift elements are actuated to engage the third gear.
    Type: Application
    Filed: March 6, 2020
    Publication date: September 10, 2020
    Inventors: Johannes KALTENBACH, Stefan RENNER, Kai BORNTRÄGER, Michael TRÜBENBACH, Stefan SPÜHLER, Johannes GLÜCKLER
  • Patent number: 10752762
    Abstract: The present invention relates to a new composite comprising glass or carbon fibers and polymer-based fibers as well as to a process for the preparation of the composite and molded articles made from said composite.
    Type: Grant
    Filed: October 16, 2017
    Date of Patent: August 25, 2020
    Assignee: BOREALIS AG
    Inventors: Thomas Lummerstorfer, Michael Jerabek, Stefan Hochradi, Claudia Pretschuh, Karoly Renner, Lukas Sobczak, Wolfgang Stockreiter, Bela Pukanszky, Janos Moczo
  • Publication number: 20200262293
    Abstract: A drive axle of an electrically drivable vehicle including first and second drive wheels (R1, R2), first and second manual transmissions (G1, G2) and first and second electrical machines (EM1, EM2) which each have a respective drive shaft (1a, 1b). The first electrical machine (EM1) drives the first drive wheel (R1), via the first manual transmission (G1), and the second electrical machine (EM2) drives the second drive wheel (R2), via the second manual transmission (G2). The manual transmissions are each designed as three-speed transmissions (G1, G2) which have identical transmission ratios (i1, i2, i3).
    Type: Application
    Filed: February 19, 2020
    Publication date: August 20, 2020
    Inventors: Johannes GLÜCKLER, Stefan RENNER, Johannes KALTENBACH, Stefan SPÜHLER, Kai BORNTRÄGER
  • Publication number: 20200263017
    Abstract: The present invention relates to a new composite comprising glass or carbon fibers and polymer-based fibers as well as to a process for the preparation of the composite and molded articles made from said composite.
    Type: Application
    Filed: May 5, 2020
    Publication date: August 20, 2020
    Inventors: Thomas Lummerstorfer, Michael Jerabek, Stefan Hochradi, Claudia Pretschuh, Karoly Renner, Lukas Sobczak, Wolfgang Stockreiter, Bela Pukanszky, Janos Moczo
  • Publication number: 20200171756
    Abstract: The invention relates to a method for the ultrasonic welding of a strip consisting of a plastic material for the production of cigarette products, in which method the strip has two free ends which are heated in a connection region by means of ultrasound and joined together to form a closed strip. Ultrasound at a frequency of more than 22 kHz is used.
    Type: Application
    Filed: May 18, 2018
    Publication date: June 4, 2020
    Applicant: Max Schlatterer GmbH & Co. KG
    Inventors: Stefan RENNER, Manfred STROBEL, Andreas WAGNER
  • Patent number: 10640120
    Abstract: A method of synchronizing the countershaft speed, in the direct gear, for a hybrid application. The transmission (1) comprises a main transmission (HG) comprising two parallel partial transmissions with at least one countershaft (VW), an output shaft (3), and two planetary transmissions (PG1, PG2) each comprising a carrier (ST1, ST2), sun gear (SR1, SR2) and ring gear (HR1, HR2). Each partial transmission has a transmission input shaft (4, 5), with a hollow first input shaft (4) and the solid second input shaft (5). The first planetary transmission (PG1) connects as a range group to the main transmission (HG). The main transmission (HG) comprises first (R1), second (R2), third (R3), fourth (R4) and fifth gear planes (R5) and first (S1), second (S2), third (S3) and fourth shift elements (S4). Synchronization of the countershaft speed to a target speed, in direct gear, is performed via speed control of the electric machine (2).
    Type: Grant
    Filed: October 5, 2016
    Date of Patent: May 5, 2020
    Assignee: ZF FRIEDRICHSHAFEN AG
    Inventors: Johannes Kaltenbach, Johannes Glückler, Stefan Renner, Rayk Gersten
  • Patent number: 10604000
    Abstract: A drive arrangement having combustion and electric engines and a transmission with input shafts (4, 5). The drive arrangement includes first and second planetary gearsets (PG1, PG2), each having a carrier, and sun and ring gears. One element of gearset (PG1) is rotationally fixed to shaft (5). Another element of gearset (PG1) is fixed to a housing. One element of gearset (PG2) is connected to the electric engine. Another element of gearset (PG2) is rotationally fixable to shaft (4). When a first switching element is engaged, a further element of gearset (PG2) is fixed to the housing. When a second switching element is engaged, the further element of gearset (PG2) is rotationally fixed to shaft (5), to which the element of gearset (PG1) is also rotationally fixed. When a third switching element is engaged, the further element of gearset (PG2) is rotationally fixed to a further element of gearset (PG1).
    Type: Grant
    Filed: October 14, 2016
    Date of Patent: March 31, 2020
    Assignee: ZG FRIEDRICHSHAFEN AG
    Inventors: Johannes Kaltenbach, Johannes Glückler, Stefan Renner, Rayk Gersten
  • Patent number: 10585874
    Abstract: Disclosed herein are methods for receiving a command for adding or removing a resource in a database and acquiring an exclusive lock for the database in response the command. In response to obtaining the exclusive lock, the method comprises determining a first number indicating the number of resources currently existing in the database and a second number indicating the number of resources subject to concurrent further commands for adding or removing a resource; comparing the first and the second number for determining whether the received command will remove the last existing resource or add a first resource to the database; and obtaining an exclusive or a shared lock for the received command in dependence on the determination. The method further includes releasing the exclusive lock for the database and adding or removing the resource while holding the lock obtained for the received command.
    Type: Grant
    Filed: August 1, 2016
    Date of Patent: March 10, 2020
    Assignee: INTERNATIONAL BUSINESS MACHINES CORPORATION
    Inventors: Bjoern Broll, Sabine Perathoner-Tschaffler, Stefan Renner, Knut Stolze
  • Patent number: 10538235
    Abstract: A method for tractive force interruption-free shifting of a hybrid drive comprising combustion engine (21), electric engine (2), main gear (HG) comprising two parallel connected partial gears, output shaft (3), and first and second planetary gears (PG1, PG2). Each partial gear having either first hollow gear input shaft (4) or second solid gear input shaft (5). The first planetary gear (PG1) is connected to the main gear (HG) as the range group, with main gear (HG) comprising at least five gear planes (R1-R5) and at least four shifting elements (S1-S4). The electric engine (2) is connected to carrier (ST1) of the range group (PG1) and the output shaft (3) so that the electric engine (2) supports tractive force while the range group (PG1) is shifted, and the fifth gear plane (R5) is connected to carrier (ST1) of range group (PG1) and thus can be shifted under load.
    Type: Grant
    Filed: October 14, 2016
    Date of Patent: January 21, 2020
    Assignee: ZF FRIEDRICHSHAFEN AG
    Inventors: Johannes Kaltenbach, Johannes Glückler, Stefan Renner, Rayk Gersten
  • Publication number: 20200017671
    Abstract: The present invention relates to a new composite comprising glass or carbon fibers and polymer-based fibers as well as to a process for the preparation of the composite and molded articles made from said composite.
    Type: Application
    Filed: October 16, 2017
    Publication date: January 16, 2020
    Inventors: Thomas Lummerstorfer, Michael Jerabek, Stefan Hochradi, Claudia Pretschuh, Karoly Renner, Lukas Sobczak, Wolfgang Stockreiter, Bela Pukanszky, Janos Moczo
  • Publication number: 20190389298
    Abstract: A transmission for a hybrid drive having transmission input and output shafts, a further transmission input shaft and an electric machine, which drives the further transmission input shaft. A main transmission has first and second partial transmissions with a plurality of gear planes and a pair of concentric fourth shafts, and shift elements. A range group can couple the main transmission and has a planetary gearset with three transmission elements. The first element can couple either of the transmission input shafts via the shift elements. The second element is connected to the transmission output shaft and can couple a gear plane of the partial transmissions via the shift elements. The third transmission element can be fixed to the housing or blocked against the first or second transmission element.
    Type: Application
    Filed: January 25, 2018
    Publication date: December 26, 2019
    Inventors: Johannes KALTENBACH, Rayk GERSTEN, Stefan RENNER, Johannes GLÜCKLER, Christian MITTELBERGER, Kai BORNTRÄGER
  • Patent number: 10493838
    Abstract: A gear unit (1) for a motor vehicle with a main gear (HG) comprising two parallel connected partial gears, an output shaft (3), and two planetary gears (PG1, PG2) each having a carrier (ST1, ST2), a sun gear (SR1, SR2) and a ring gear (HR1, HR2). A first planetary gear (PG1) is connected to the main gear (HG), with the main gear (HG) comprising first (R1), second (R2), third (R3), fourth (R4) and fifth (R5) gear planes and first (Si), second (S2), third (S3) and fourth (S4) shifting element. A second planetary gear (PG2) is provided between an electric engine (2) and a first gear input shaft (4) of the main gear (HG). The fourth shifting element (S4), in a second shifting position (H), connects the fifth gear plane (R5) and the carrier (ST1) of the range group and thus the range group is able to be shifted under load.
    Type: Grant
    Filed: October 14, 2016
    Date of Patent: December 3, 2019
    Assignee: ZF FRIEDRICHSHAFEN AG
    Inventors: Johannes Kaltenbach, Johannes Glückler, Stefan Renner, Rayk Gersten
  • Patent number: 10493839
    Abstract: A hybrid drive arrangement including combustion engine (7), an electric machine (6) and a transmission with input shafts (4, 5) and an output shaft. The drive arrangement has a planetary gearset (PG) with a first element that can be rotationally engaged with shaft (4), and a second element that can be fixed to the housing or machine (6). Shift element (K) couples a third element of gearset (PG) to the housing or to rotationally engage with machine (6). Shift element (J) couples the third element of gearset (PG) with engine (7). Shift elements (C, D) respectively couple the shafts (4, 5) with engine (7) and form a double shift element (S1), whose actuator (10) extends through a section (11) of a drive shaft (12) of the engine (7), which encompasses, on the outside, shift element (S1). Section (11) of shaft (12) of engine (7) extends to shift element (J).
    Type: Grant
    Filed: October 12, 2016
    Date of Patent: December 3, 2019
    Assignee: ZF Friedrichshafen AG
    Inventors: Johannes Kaltenbach, Johannes Glückler, Stefan Renner, Rayk Gersten
  • Publication number: 20190364690
    Abstract: A textile machine (1), in particular a rotor spinning machine, comprising a plurality of adjacently situated workstations, in particular spinning and/or winding stations, which are combined to form multiple sections (2a-2f). The textile machine (1) further comprises multiple electrical supply units (3a-3f), with the aid of which the workstations and/or the sections (2a-2f) can be supplied with electrical energy, and a cooling arrangement (4) including at least one coolant circuit (16a-16c), with the aid of which waste heat of the electrical supply units (3a-3f) can be absorbed and transported to a discharge area (5) of the textile machine (1). The cooling arrangement (4) is designed in such a way that the waste heat of several of the electrical supply units (3a-3f) can be transported to a common discharge area (5) of the textile machine (1) with the aid of the at least one coolant circuit (16a-16c).
    Type: Application
    Filed: May 24, 2019
    Publication date: November 28, 2019
    Inventors: Bernd Bahlmann, Mario Maleck, Philipp Renner, Stefan Sippl
  • Patent number: 10486518
    Abstract: A hybrid vehicle transmission (1) having internal combustion engine (8) and electric machine (5). The transmission (1) comprises main transmission (HG) with two parallel partial transmissions; output shaft (4); first (R1), second (R2), third (R3), fourth (R4) and output constant (R5) gear planes each comprising a fixed gear on countershaft (VW) and respective meshing loose gear; first (A), second (B), third (C), fourth (D), fifth (E), sixth (F), seventh (G) and eighth (H) shift elements. Whenever eighth shift element (H) is engaged, the loose gear of fifth gear plane (R5) is engaged with the output shaft (4) of the main transmission (HG), whenever the seventh shift element (G) is engaged, loose gear of fourth gear plane (R4) is engaged with the output shaft (4), and whenever the sixth shift element (F) is engaged, loose gear of fourth gear plane (R4) is engaged with the first transmission input shaft (2).
    Type: Grant
    Filed: November 2, 2016
    Date of Patent: November 26, 2019
    Assignee: ZF FRIEDRICHSHAFEN AG
    Inventors: Johannes Kaltenbach, Christian Mittelberger, Stefan Renner, Stefan Blattner
  • Publication number: 20190344654
    Abstract: A transmission having a main transmission and a splitter group, and including at least four spur gear planes formed with a countershaft and at least five shifting elements for engaging at least six gears between the transmission input and output shafts. When shifting between gears with the highest and the second-highest gear ratios, a shift occurs in the shifting elements associated with the splitter group but not in the shifting elements associated with the main transmission, whereas when shifting between gears with the lowest and second-lowest gear ratios, a shift occurs in the shifting elements associated with the main transmission but not in the shifting elements associated with the splitter group. An electric machine can be connected by a gearset, and depending on its shift position, the gearset acts as a pre-transmission ratio for the electric machine or as a superimposition transmission.
    Type: Application
    Filed: January 25, 2018
    Publication date: November 14, 2019
    Inventors: Johannes KALTENBACH, Johannes GLÜCKLER, Christian MITTELBERGER, Kai BORNTRÄGER, Rayk GERSTEN, Stefan RENNER
  • Publication number: 20190338112
    Abstract: The present invention relates to a new composite comprising glass or carbon fibers and polymer-based fibers as well as to a process for the preparation of the composite and molded articles made from said composite.
    Type: Application
    Filed: October 16, 2017
    Publication date: November 7, 2019
    Inventors: Thomas Lummerstorfer, Michael Jerabek, Stefan Hochradi, Claudia Pretschuh, Karoly Renner, Lukas Sobczak, Wolfgang Stockreiter, Bela Pukanszky, Janos Moczo