Patents Assigned to ZF Friedrichshafen
  • Publication number: 20240149905
    Abstract: A method for monitoring a vehicle (1) having a vehicle superstructure (2), a chassis (3) connected to the vehicle superstructure (2), and a monitoring unit (11) which monitors the chassis (3) for damage. In the event that chassis damage is detected, the monitoring unit produces a warning signal (S) by means of a warning signal generator, where the warning signal generator has at least one drive unit (10) by means of which the warning signal (S) is produced in the form of a tactile mechanical vibration.
    Type: Application
    Filed: December 9, 2021
    Publication date: May 9, 2024
    Applicant: ZF Friedrichshafen AG
    Inventors: Christoph Müller, Stefan Schmidt
  • Publication number: 20240146181
    Abstract: A method for driving two mutually complementary topological switches of a half-bridge in a power module of an inverter includes detecting a bridge short circuit at one of the topological switches, de-energizing the topological switch complementary to the topological switch at which the bridge short circuit was detected, and, temporally switching off the short-circuit current in the topological switch at which the bridge short circuit was detected.
    Type: Application
    Filed: November 2, 2023
    Publication date: May 2, 2024
    Applicant: ZF Friedrichshafen AG
    Inventors: Marc Rasch, Sebastian Besold
  • Publication number: 20240141974
    Abstract: A differential lock is configured for locking compensation movements between drive output shafts (4) in a differential gearbox of a vehicle. In the locking condition, at least one of the drive output shafts (4) is connected with interlock to a differential cage (2) connected to a drive input, by means of a sliding sleeve (5) which is connected rotationally fixed to the drive output shaft (4) and can be displaced axially. For axial movement of the sliding sleeve (5), which is prestressed against at least one spring element (7), the action of a pressure (6) is provided. The spring element (7) is arranged, at least partially, radially inside the sliding sleeve (5). In addition a differential gearbox with the differential lock is proposed.
    Type: Application
    Filed: October 17, 2023
    Publication date: May 2, 2024
    Applicant: ZF Friedrichshafen AG
    Inventor: Julian Lüftl
  • Publication number: 20240140443
    Abstract: A device for determining driver alertness includes a gas sensor for continuously monitoring a driver's exhalations and/or volatile organic compounds emitted from the skin, and an analyzer for extracting at least one volatile biomarker in the exhalations and/or the emitted volatile organic compounds, wherein the biomarker is isoprene, and wherein the analyzer is configured to determine the isoprene concentration over the course of a predefined time period to obtain an isoprene concentration profile, determine peaks in the isoprene concentration profile, such that the alertness of the driver can be determined on the basis of the number of peaks within the predefined time period, and/or determine the driver's alertness on the basis of a frequency analysis of isoprene concentrations within the predefined time period, and/or determine the driver's alertness on the basis of random distributions of isoprene concentrations within the predefined time period.
    Type: Application
    Filed: November 30, 2021
    Publication date: May 2, 2024
    Applicant: ZF Friedrichshafen AG
    Inventors: Julian King, Rene Seidemann
  • Publication number: 20240141973
    Abstract: A differential lock for locking compensation movements between drive output shafts (4) in a differential gearbox of a vehicle is disclosed. In the locking condition, at least one of the drive output shafts (4) is connected with interlock to a differential cage (2) connected to a drive input, where a sliding sleeve (5) is arranged coaxially relative to the drive output shaft (4) and connected rotationally fixed to the drive output shaft (4). The sliding sleeve can be moved by means of a piston element (6) in such manner that radial-side external teeth (7) of the sliding sleeve (7) can be brought into engagement with radial-side internal teeth (8) of the differential cage (2). In addition, a differential gearbox with the differential lock is proposed.
    Type: Application
    Filed: October 17, 2023
    Publication date: May 2, 2024
    Applicant: ZF Friedrichshafen AG
    Inventor: Julian Lüftl
  • Publication number: 20240140248
    Abstract: A method for characterizing energy stored in a vehicle, where the energy is delivered from an energy source to an energy store of the vehicle, the method includes acquiring information on energy supplied, processing information on the energy in order to establish an energy class of the energy, and assigning the energy that is delivered to the energy store to an energy class. A charging device, a control unit, and a vehicle are also disclosed.
    Type: Application
    Filed: October 26, 2023
    Publication date: May 2, 2024
    Applicant: ZF Friedrichshafen AG
    Inventors: Stephan Demmerer, Christian Gürlich, Otmar Scharrer, Gerhard Müller, Johannes Ochsenreiter
  • Patent number: 11971103
    Abstract: A seal device (3) for a rotating shaft (1). The seal device has a shaft seal (4), a shaft grounding connection (6) and a holding feature (9) for holding the shaft seal (4) and the shaft grounding connection (6). The holding feature (9) has at least one opening (10), between the shaft seal (4) and the shaft grounding connection (6), for clearing particles away from the shaft seal (4) and the shaft grounding connection (6). An electric machine with a rotor shaft (1) that can be driven in rotation and with a seal device (3) of the above type for sealing the rotor shaft (1) and, therefore, also sealing an inside space of the electric machine. Furthermore, a drive unit for electrically driving a motor vehicle, including an electric machine of the above type for providing drive power of the drive unit.
    Type: Grant
    Filed: October 14, 2019
    Date of Patent: April 30, 2024
    Assignee: ZF Friedrichshafen AG
    Inventors: Vyacheslav Brushkivskyy, Gerhard Höring
  • Patent number: 11973406
    Abstract: A rotor (1) for an electric machine (25) which comprises a rotor support (2). The rotor support has cylindrical inner and outer shells (3, 4). A magnetic flux-carrying rotor component has first and second end faces (6, 7) and carries the cylindrical outer shell (4). A rotationally shaft section (8) is arranged in an inside space (9) of the rotor support and mounted coaxially with the rotor support. At least in the area of the first end face (6) the outer shell has first teeth which face toward the magnetic flux-carrying rotor component and a first tooth base between respective pairs of first teeth, and at least in the area of the second end face (7) the outer shell (4) has second teeth which face toward the magnetic flux-carrying rotor component and a second tooth base between respective pairs of second teeth. The invention also relates to an electric machine.
    Type: Grant
    Filed: December 16, 2021
    Date of Patent: April 30, 2024
    Assignee: ZF Friedrichshafen AG
    Inventors: Rayk Gersten, Stefan Spühler, David Wörzler, Martin Christians, Martin Jelinewski, Alexander Baur
  • Patent number: 11973372
    Abstract: An electric machine (1) for driving a motor vehicle includes a stator (2) having at least one winding overhang (9, 10). Cooling fluid is flowable in the area of the at least one winding overhang (9, 10) to receive heat from the at least one winding overhang (9, 10). Air is flowable in the area of the at least one winding overhang (9, 10) to receive heat from the cooling fluid.
    Type: Grant
    Filed: December 17, 2021
    Date of Patent: April 30, 2024
    Assignee: ZF Friedrichshafen AG
    Inventors: Martin Lang, Thomas Auer, Maria Lang
  • Patent number: 11971264
    Abstract: A method for determining a route (100) for a vehicle. When selecting a route segment (110, 112) of the route (100), a condition value assigned to the route segment (110, 112) and a default value associated with the route (100) are taken into account. The condition value represents a road condition of the route segment (110, 112) and the default value represents a road quality that is preferred for the route (100) and is independent of a road category.
    Type: Grant
    Filed: March 5, 2020
    Date of Patent: April 30, 2024
    Assignee: ZF Friedrichshafen AG
    Inventor: Henrik Stegmann
  • Publication number: 20240132046
    Abstract: A device for model predictive control of a vehicle component includes a first input receiving sensor data, a second input receiving data regarding a topology in a vehicle's environment, a control unit for executing a predictive algorithm for generating a control value for the component, an output for outputting the control value, wherein the predictive algorithm comprises a vehicle model including a battery model, wherein the sensor and topology data are processed in the predictive algorithm, the predictive algorithm also including an optimization function including energy consumption predicted by the battery model, travel time predicted by the vehicle model, information regarding a charging station along a route of the vehicle predicted by the vehicle model in a prediction horizon, and information regarding the predicted charging state of the battery at the charging station, and the predictive algorithm generates the control value through minimization in the optimization function.
    Type: Application
    Filed: November 30, 2021
    Publication date: April 25, 2024
    Applicant: ZF Friedrichshafen AG
    Inventor: Timon Busse
  • Patent number: 11964532
    Abstract: A chassis component (1) for a wheel suspension having at least two pivot points (3, 4), at least one connecting structure (7) which interconnects the pivot points (3, 4) with one another, and at least one sensor (9). The at least one sensor (9) is embodied as a piezoresistive thin film (19) arranged on a section of a surface (8) of the connecting structure (7). A thin film interconnects contact points (15, 16), of at least two conductive sections (13, 14) which are integrated in the connecting structure (7), to one another.
    Type: Grant
    Filed: July 9, 2019
    Date of Patent: April 23, 2024
    Assignee: ZF Friedrichshafen AG
    Inventors: Jonas Meier Zu Farwig, Alexander Lundberg, Michael Klank
  • Patent number: 11968810
    Abstract: A power module for operating an electric vehicle drive may include one or more of the following: a plurality of semiconductor components; an intermediate circuit capacitor connected in parallel to the semiconductor components; a heatsink for the removal of heat generated by the semiconductor components, where the heatsink is located between the semiconductor components and the intermediate circuit capacitor; and an intermediate circuit line that electrically connects the intermediate circuit capacitor to the semiconductor components. The intermediate circuit line may extend perpendicular to a direction of flow for the coolant in the heatsink on a side of the semiconductor components facing away from the heatsink.
    Type: Grant
    Filed: December 16, 2021
    Date of Patent: April 23, 2024
    Assignee: ZF FRIEDRICHSHAFEN AG
    Inventors: Ake Ewald, Michael Sperber, Stefan Hain
  • Patent number: 11967100
    Abstract: A navigational system and method for guiding a boat onto a trailer, which comprises at least one marker mounted on the trailer; a camera located on the boat to assist the system with determining a longitudinal axis of the boat, and generating images of at least a front area of the boat and the at least one marker; an image processing unit for 1) receiving and processing the images to determine the at least one marker, 2) estimating the longitudinal axis of the trailer, 3) generating a desired boat trajectory for aligning the longitudinal axis of the boat with the longitudinal axis of the trailer; and 4) periodically generating guidance output commands to the user to assist the user with following the desired boat trajectory and facilitate loading of the boat on the trailer; and an image display for sequentially displaying the generated images of the camera to a user.
    Type: Grant
    Filed: January 28, 2021
    Date of Patent: April 23, 2024
    Assignees: ZF Friedrichshafen AG, ZF Marine Propulsion Systems Miramar, LLC
    Inventors: Stefan Traub, Gabriela Jager, Lars Hoffmann, Andrew Orvieto
  • Patent number: 11964675
    Abstract: A system for safely operating an automated vehicle includes a first network including a sensor set comprising a plurality of sensors configured to detect the surroundings of the vehicle. The sensor set is coupled to a high-performance electronic control unit (ECU) configured to process the signals of the sensors for orientation, control, and collision avoidance. The system further includes a secure motion-control ECU redundantly coupled to at least one drive element via at least two control signals for controlling the vehicle. The high-performance ECU is configured to output an object recognition indicator signal for orientation, control, and collision avoidance to the motion-control ECU. The system also includes a second, hierarchical, redundant network for safely operating the vehicle. The motion-control ECU is designed to securely evaluate the signals of a human/remote-machine interface (HMI/RMI), a ground truth sensing device, and a perception-safety ECU for the recognition of an emergency state.
    Type: Grant
    Filed: February 10, 2020
    Date of Patent: April 23, 2024
    Assignee: ZF FRIEDRICHSHAFEN AG
    Inventors: Marcus Hiemer, Sascha Heinrichs-Bartscher, Mark Mohr
  • Publication number: 20240124019
    Abstract: A method for planning a behavior of a vehicle with respect to one or more occluded area(s) along a navigation path of the vehicle, wherein the method comprises an occluded area identification step, during which the occluded area(s) is/are identified, and a phantom object generation step, during which at least one phantom object is generated for at least one of the occluded areas, the occluded area(s) is/are defined based on information from a predefined occlusion scenario catalog during the occluded area identification step.
    Type: Application
    Filed: April 11, 2022
    Publication date: April 18, 2024
    Applicant: ZF Friedrichshafen AG
    Inventors: Chi Zhang, Florian Steinhauser
  • Publication number: 20240123783
    Abstract: A load introduction element (3) for a chassis component (1) of a chassis, having a receiving opening (5) for receiving a joint arrangement (6) and a spline (8) with teeth (9A, 9B) extending substantially axially parallel to the longitudinal axis of the load introduction element (3), The load introduction element (3) is made from a fiber-reinforced plastic semifinished product, and has flat blanks (13, 14, 15) of the plastic semifinished product which are arranged one above the other in layers in an assembly direction (AR) and form a base body (11) of the load introduction element (3), wherein the blanks (13, 14, 15) of the base body (11) have at least two different geometries with different preferential fiber directions (20, 21).
    Type: Application
    Filed: December 10, 2021
    Publication date: April 18, 2024
    Applicant: ZF Friedrichshafen AG
    Inventors: Andre STIEGLITZ, Ingolf MÜLLER, Eva Sophie JURGELEIT, Paul NIEMÖLLER
  • Patent number: 11958348
    Abstract: Disclosed is a drive unit for a drive axle of a vehicle having a first and second electric machines, a differential and a transmission with first and a second transmission input shafts, a transmission output shaft, at least a first planetary gearset. A first shifting unit has three shift positions. In a first shift position, a second element is connected to a rotationally fixed component. In a second shift position two of the three elements of the first planetary gearset are connected rotationally fixed to one another. A second shifting unit has exactly three shift positions. In a first shift position a first transmission input shaft and a second transmission input shaft are connected rotationally fixed to one another. In a second shift position the second transmission input shaft is connected at least indirectly to the second element of the first planetary gearset.
    Type: Grant
    Filed: March 29, 2023
    Date of Patent: April 16, 2024
    Assignee: ZF Friedrichshafen AG
    Inventor: Niclas Raeder
  • Patent number: 11962226
    Abstract: A rotor carrier for a rotor of an electric machine and to a hybrid module with such a rotor carrier. The rotor carrier includes a tubular base body having elements on an outer circumferential surface facing the rotor for connection between base body and rotor, the base body is connected to a hub by a connection element. The connection element has an axial portion which extends along a part of the axial length of the base body and runs coaxial to the latter, in that receptacles for parts of a clutch are provided on an inner circumferential surface of the axial portion remote of the base body, and in that the connection element has a flange area adjoining the axial portion.
    Type: Grant
    Filed: July 8, 2019
    Date of Patent: April 16, 2024
    Assignee: ZF FRIEDRICHSHAFEN AG
    Inventors: Wolfgang Großpietsch, Angelika Ebert, Monika Rößner, Christoph Margraf, Thomas Bauer
  • Patent number: 11962189
    Abstract: A stator (1a, 1 b) for an electric machine. The stator (1a, 1b) is fixedly mounted relative to a rotational axis (Rot). The stator (1a, 1b) comprises a stator yoke (2) that extends in the axial (A) and radial (R) directions. Stator teeth (3), facing toward the rotational axis (Rot), are arranged in a ring shape on the stator yoke (2). The teeth are uniformly spaced apart from one another so that a stator groove (14) is formed therebetween. The stator (1a, 1b) is divided into a first stator section (5) and a second stator section (6). First and second outer walls (9, 10) are provided on the stator yoke (2) and serve to axially support the stator yoke (2). A cooling manifold disk (11) is integrated between the first stator section (5) and the second stator section (6). An electric machine with a stator of that type is also disclosed.
    Type: Grant
    Filed: December 16, 2021
    Date of Patent: April 16, 2024
    Assignee: ZF Friedrichshafen AG
    Inventors: Rayk Gersten, David Wörzler, Stefan Spühler, Martin Jelinewski, Johannes Glückler, Timo Hele, Kai Bornträger