Patents Assigned to ZF Friedrichshafen AG
  • Patent number: 11885380
    Abstract: Claw-type shifting mechanism (5) with a first sliding sleeve (17) and a fixed coupling element (19). In order to produce a passage, the first sliding sleeve (17) and the coupling element (19) each respectively have at least one recess (31, 35) and at least one web section (32, 36), in which the first sliding sleeve (17) and the coupling element (19) can be arranged together radially on the outside on a first shaft. The first sliding sleeve (17) can be displaced along the first shaft and the coupling element (19) can be connected firmly to the first shaft. The drive arrangement (1) comprises at least one drive machine, a transmission with a first shaft, a second shaft and a third shaft, a housing, and a claw-type shifting mechanism (5) of this type.
    Type: Grant
    Filed: December 16, 2021
    Date of Patent: January 30, 2024
    Assignee: ZF Friedrichshafen AG
    Inventors: Stefan Renner, Martin Weiss
  • Patent number: 11885395
    Abstract: An electric transmission (10) for a motor vehicle drive train (12) with a first electric prime mover (14) and a second electric prime mover (18), includes a first transmission input shaft (30) having a first transmission connection for drivingly connecting the electric transmission to the first electric prime mover, a second transmission input shaft (32) having a second transmission connection for drivingly connecting the electric transmission to the second electric prime mover, a countershaft (36), gearwheel pairs of idler gears (42, 44, 50, 52, 62) and fixed gears (46, 48, 54, 65, 64) for forming gear steps and arranged in multiple gear set planes, a plurality of shift elements (38, 40) for engaging the gear steps, a planetary gear set (22) with a sun gear (24), a planet gear carrier, and a ring gear (28), and a third transmission input shaft (34) drivingly connected to the planet gear carrier of the planetary gear set.
    Type: Grant
    Filed: December 2, 2021
    Date of Patent: January 30, 2024
    Assignee: ZF FRIEDRICHSHAFEN AG
    Inventor: Max Bachmann
  • Patent number: 11885396
    Abstract: A transmission arrangement for an at least partially electrically driven vehicle includes a first electric machine defining a first central longitudinal axis and having a first gear stage and a second gear stage. The arrangement further includes a second electric machine defining a second longitudinal axis and having a first gear stage and a second gear stage. Further, the arrangement includes a transmission housing, with the first and second electric machines being arranged in the transmission housing. Additionally, the arrangement includes a differential drivingly connected to the second gear stages of the first and second electric machines. The first and second central longitudinal axes are axially parallel to each other on a circular path, the circular path being perpendicular to an output axis.
    Type: Grant
    Filed: December 17, 2021
    Date of Patent: January 30, 2024
    Assignee: ZF FRIEDRICHSHAFEN AG
    Inventors: Timo Wehlen, Stephan Scharr, Eckhardt Lübke, Manfred Till
  • Patent number: 11885401
    Abstract: A dual clutch transmission (1) includes a breather assembly (7) with a breather element (9). The breather element (9) includes at least one entry opening (24) facing a transmission interior and an outwardly facing exit opening (40). The breather assembly (7) also includes at least one oil collection element (8) arranged between the breather element (9) and an oil spray source (6).
    Type: Grant
    Filed: July 25, 2018
    Date of Patent: January 30, 2024
    Assignee: ZF FRIEDRICHSHAFEN AG
    Inventors: Niko Zwerger, Michael Obergasser, Steffen Barth
  • Patent number: 11884362
    Abstract: A drive arrangement for a bicycle or pedelec includes a manual drive shaft (1) in a housing (2). A rotor (3) of a first electric drive (EM 1) is arranged axially parallel to the manual drive shaft (1), and a rotor (4) of a second electric drive (EM2) is arranged coaxially to the manual drive shaft (1). The rotor (3) of the first electric drive (EM 1) is coupled to a first planetary gear set (PS 1) as a superposition gearbox via a first fixed ratio. The rotor (4) of the second electric drive (EM 2) is coupled to the manual drive shaft (1) via a second fixed ratio. The manual drive shaft (1) is coupled to the first planetary gear set (PS 1) as the superposition gearbox, and the first planetary gear set (PS 1), as the superposition gearbox, is coupled to an output (5).
    Type: Grant
    Filed: August 12, 2019
    Date of Patent: January 30, 2024
    Assignee: ZF FRIEDRICHSHAFEN AG
    Inventors: Johannes Kaltenbach, Uwe Griesmeier
  • Publication number: 20240032260
    Abstract: A power electronics module includes a printed circuit board populated with numerous components of the power electronics module. Power semiconductors and DC and AC connecting elements are either placed adjacently to one another on an organic insulator, and each thermally and mechanically connected to a heat sink through the organic insulator, or the DC and AC connecting elements are placed between the power semiconductors and the heat sink and are thermally and mechanically connected to the heat sink and to the power semiconductors.
    Type: Application
    Filed: July 19, 2023
    Publication date: January 25, 2024
    Applicant: ZF Friedrichshafen AG
    Inventors: Manuel Raimann, Pengshuai Wang
  • Publication number: 20240029934
    Abstract: An inductor includes a winding that has a predefined inductance, a soft magnetic winding core, and a housing that has a cooling surface for discharging heat from the inductor. This housing encases the winding.
    Type: Application
    Filed: July 19, 2023
    Publication date: January 25, 2024
    Applicant: ZF Friedrichshafen AG
    Inventors: Ivonne Trenz, Pengshuai Wang
  • Publication number: 20240030773
    Abstract: An electric machine for driving a motor vehicle has a rotor with a rotor shaft (3), an axially fixed bearing, an axially floating bearing (5), a machine housing (7), a securing pin (19) and a protective element (24). The axially fixed bearing is fitted into the electric machine (1) rotationally fixed and not able to move in an axial direction (x) of the electric machine (1), whereas the axially floating bearing (5) is fitted in the machine housing (7) so that it can move in the axial direction (x). The securing pin (19) is designed to prevent an outer ring (10) of the floating bearing (5) from rotating in its circumferential direction (U) relative to the machine housing (7). The protective element (24) is designed to prevent the securing pin (19) from being driven into the machine housing (7) and blocking the floating bearing (5).
    Type: Application
    Filed: December 15, 2021
    Publication date: January 25, 2024
    Applicant: ZF Friedrichshafen AG
    Inventors: Vyacheslav Brushkivskyy, Gerhard Höring
  • Publication number: 20240026961
    Abstract: A continuously variable power-branched transmission has a shaft (4) that can be coupled to a drive motor, where the drive motor is connected to at least one variator (1). In order to obtain forward and reverse driving operation, the drive motor is coupled by way of spur gear pairs that can be engaged by means of driving direction clutches (KV, KR) to a drive output (13). The driving direction clutches (KV, KR) are arranged a distance apart.
    Type: Application
    Filed: July 18, 2023
    Publication date: January 25, 2024
    Applicant: ZF Friedrichshafen AG
    Inventors: Gerhard Milbradt, Christian Kreutle, Rainer Hildebrand, Taras Bidenko, Rudolf Zentsch, Jan Baudis, Stefan Dirnberger, Johannes Ziegler, Wiebke Breil, Giuseppe Muro
  • Publication number: 20240029935
    Abstract: A storage choke assembly for a multi-phase DC-to-DC converter for converting a DC input voltage to a DC charging voltage for charging a vehicle battery in an electric vehicle, fuel cell vehicle, or hybrid vehicle, includes a storage choke that has one or more coils, and a housing in which the storage choke is accommodated, wherein the housing has a first housing section and a second housing section, wherein the first housing section is made of a first thermosetting plastic and is in direct contact with one or more coils, wherein the second housing section is made of a second thermosetting plastic, wherein the first thermosetting plastic has a higher thermal conductivity than the second thermosetting plastic.
    Type: Application
    Filed: July 19, 2023
    Publication date: January 25, 2024
    Applicant: ZF Friedrichshafen AG
    Inventors: Ivonne Trenz, Stefan Schaub, Rico Zeiler, Udo Zöllner
  • Publication number: 20240032187
    Abstract: A high-current element for high-current printed circuit boards is formed from at least two metal sheets which are connected to form a sheet-metal stack and which have a plurality of pins at least at an end region thereof, and wherein the sheet-metal stack has a terminal region, a pin region, and a connection region, and wherein the metal sheets are connected to one another in the connection region, and the pins are arranged in the pin region and formed for contacting with the high-current printed circuit board, and the terminal region is set up to be used as a terminal region for connecting the high-current element to external power terminals.
    Type: Application
    Filed: July 18, 2023
    Publication date: January 25, 2024
    Applicant: ZF Friedrichshafen AG
    Inventors: Michael Sperber, Ake Ewald, Chandra Gupta Hazarika
  • Publication number: 20240030816
    Abstract: A symmetrical DC-to-DC boost converter includes a DC input voltage source with a negative DC voltage input and a positive DC voltage input, a negative DC and positive DC voltage output, at least four switches, and two chokes, one of which is connected to the negative DC voltage input and two adjacent switches, and the other of which is connected to the positive DC voltage input and two other adjacent switches, such that a symmetrical topology with separate DC voltage inputs is obtained. Furthermore, there is an input capacitor between the voltage inputs and a first symmetry capacitor connected to the negative DC voltage input and the negative DC voltage output, as well as a second symmetry capacitor connected to the positive DC voltage input and the positive DC voltage output.
    Type: Application
    Filed: July 19, 2023
    Publication date: January 25, 2024
    Applicant: ZF Friedrichshafen AG
    Inventor: Manuel Raimann
  • Publication number: 20240030692
    Abstract: A capacitor unit for a power converter, wherein the capacitor unit has a first busbar and a second busbar, and at least one capacitor element placed in between the first busbar and the second busbar, wherein the capacitor element is electrically connected to the first busbar at a first side, and wherein the capacitor element is electrically connected to the second busbar at a second side, lying opposite the first side, and a cooling device, wherein the cooling device is thermally coupled to the first busbar with a surface area contact, wherein the cooling device is designed to remove heat from the first busbar.
    Type: Application
    Filed: July 19, 2023
    Publication date: January 25, 2024
    Applicant: ZF Friedrichshafen AG
    Inventors: Jonas Zeller, Michael Kohr, Pengshuai Wang
  • Publication number: 20240030094
    Abstract: A cooling device for a power converter for a vehicle includes a heat sink having a heat discharging structure on a first side for discharging heat acting on the heat sink, and a connecting surface on the second side opposite the first side for absorbing heat from a semiconductor connected to the connecting surface, wherein the semiconductor has a discharge surface for discharging heat to the connecting surface, and an insulating layer having a polymer with ceramic particles that is located between the connecting surface on the heat sink and the discharge surface on the semiconductor, and is designed to mechanically and thermally connect the heat sink to the semiconductor and to insulate them from one another.
    Type: Application
    Filed: July 19, 2023
    Publication date: January 25, 2024
    Applicant: ZF Friedrichshafen AG
    Inventors: Thomas Bosch, Manuel Raimann
  • Publication number: 20240029959
    Abstract: A link capacitor for a motor vehicle has a housing, a first busbar and a second busbar for electrical contact to the link capacitor, and at least one coupling element. The housing accommodates a winding for the link capacitor. The first busbar and second busbar are connected to the winding. The coupling element is on the housing and designed to couple the link capacitor to an adjacent link capacitor and/or to a support element.
    Type: Application
    Filed: July 19, 2023
    Publication date: January 25, 2024
    Applicant: ZF Friedrichshafen AG
    Inventors: Fabian Döllinger, Michael Kohr, Ivonne Trenz, Pengshuai Wang, Jonas Zeller
  • Patent number: 11879962
    Abstract: The invention relates to a method on a radar measuring system for determining a uniform speed, in which method two antenna pairs, each consisting of a transmitting antenna and a receiving antenna, are mapped to the same position within a virtual antenna arrangement.
    Type: Grant
    Filed: February 6, 2019
    Date of Patent: January 23, 2024
    Assignee: ZF FRIEDRICHSHAFEN AG
    Inventors: Benjamin Sick, Stefan Zechnar, Michael Walter, Kevin Cinglant
  • Patent number: 11878591
    Abstract: A power distribution includes first and second inputs, first and second outputs, and a third output configured to connect to a low-voltage vehicle power supply, a high-voltage distributor is connected to the first input and forms the connection between the energy storage and further components of the power distribution. A controller monitors at least the high-voltage distributor and can control components of the power distribution. At least one inverter is arranged in the current path between the high-voltage distributor and at least one of the contacts for the first output, the second output or the second input, a first converter is arranged between the high-voltage distributor and the third output and converts a DC voltage provided by the high-voltage distributor to a lower DC voltage.
    Type: Grant
    Filed: February 15, 2021
    Date of Patent: January 23, 2024
    Assignee: ZF FRIEDRICHSHAFEN AG
    Inventors: Frank Seemann, Andre Ehrsam, Martin Mach, Zbynek Stepan, Vladimír Dvojak, Gabriel Scherer
  • Patent number: 11878356
    Abstract: The disclosure relates to a device for deburring at least one borehole opening of a metal workpiece, wherein the device has a rotationally symmetrical countersink bit. The countersink bit of the device is designed to remove at least one burr of the at least one borehole opening. The countersink bit can be introduced into an opening forming the at least one borehole opening and rotated. The disclosure also relates to a corresponding method.
    Type: Grant
    Filed: March 20, 2020
    Date of Patent: January 23, 2024
    Assignee: ZF Friedrichshafen AG
    Inventor: Martin Barre
  • Patent number: 11878563
    Abstract: A multipoint link for an undercarriage of a vehicle, having a core element formed from a foamed material and at least one roving of bundled continuous filaments wound around the core element, the at least one roving winding around the core element in at least one layer forming an outer layer of the multipoint link. The recesses serving to guide the at least one roving to be laid by winding are incorporated in the surface of the core element.
    Type: Grant
    Filed: April 8, 2020
    Date of Patent: January 23, 2024
    Assignee: ZF FRIEDRICHSHAFEN AG
    Inventors: Ingolf Müller, Jens Heimann, Andre Stieglitz, Carsten Sohl, Valentin Hörtdörfer
  • Patent number: 11878675
    Abstract: A method for operating a drive train of a working machine, wherein a traction drive of the drive train is driven by an electric traction motor via a transmission and wherein, when a gear stage of the transmission is changed, a rotational speed of the traction motor is synchronised with the gear stage being engaged. The method further includes a computational model of the traction motor that is used for the rotational speed synchronisation. The model, taking into account a moment of inertia of the traction motor, describes a torque to be delivered for the rotational speed synchronisation. A corresponding drive train and a working machine is also disclosed.
    Type: Grant
    Filed: March 18, 2020
    Date of Patent: January 23, 2024
    Assignee: ZF Friedrichshafen AG
    Inventor: Jürgen Legner