Patents Assigned to ZF Friedrichshafen AG
  • Patent number: 10774927
    Abstract: A method for detecting an oil leakage of a main pump during a stopping process of an internal combustion engine, where the oil leakage is caused by a reversal of a direction of rotation of a crankshaft of a vehicle including an electric auxiliary pump and the main pump, where the main pump is driven by the internal combustion engine of the vehicle. The method includes determining whether a rotational speed of the electric auxiliary pump exceeds a predefined threshold value, and when the rotational speed of the electric auxiliary pump exceeds the predefined threshold value for the rotational speed, detecting that the main pump is leaking, recording an error in an error memory of the vehicle, and demanding an engine start.
    Type: Grant
    Filed: July 5, 2018
    Date of Patent: September 15, 2020
    Assignee: ZF FRIEDRICHSHAFEN AG
    Inventor: Dimitrios Mourousoglou
  • Patent number: 10767707
    Abstract: A coupling arrangement for the powertrain of a vehicle with a clutch housing which is rotatable around a central axis is provided with a clutch mechanism with input-side clutch units) in operative connection with an input-side clutch unit carrier which is fixed with respect to rotation relative to the clutch housing and with output-side clutch units which are in operative connection with an output-side clutch unit carrier which is fixed with respect to rotation relative to a torsional vibration damper, and with a pressing device through which an operative connection between the input-side clutch units and the output-side clutch units can be produced or cancelled, and with a torsional vibration damper connecting the clutch mechanism to an output. The pressing device is provided axially between the torsional vibration damper and the clutch mechanism.
    Type: Grant
    Filed: January 5, 2017
    Date of Patent: September 8, 2020
    Assignee: ZF Friedrichshafen AG
    Inventor: Steffen Matschas
  • Patent number: 10766350
    Abstract: A transmission for a motor vehicle having an input shaft, an output shaft, a plurality of planetary gear sets, a plurality of shift elements, and an electric machine arranged axially parallel to the input shaft and operatively connected to the input shaft with a constant transmission ratio via a spur gear drive or a flexible traction drive mechanism. Various gear steps are formable between the input shaft and the output shaft through the planetary gear sets by selectively engaging shift elements of the plurality of shift elements. An actuating element of one of the plurality of shift elements is arranged, at least partially, radially within an element of the spur gear drive or the flexible traction drive mechanism arranged coaxially to the input shaft, and together with the spur gear drive or the flexible traction drive mechanism in a plane orthogonal to an axis of rotation of the input shaft.
    Type: Grant
    Filed: May 16, 2017
    Date of Patent: September 8, 2020
    Assignee: ZF FRIEDRICHSHAFEN AG
    Inventors: Peter Ziemer, Michael Roske, Juri Pawlakowitsch, Thomas Rosemeier, Raffael Kuberczyk
  • Patent number: 10767391
    Abstract: The present disclosure relates to a device for an actuation handle, having an actuation bolt, which has at least one section along its longitudinal axis (A) having at least one outer edge on its circumference. The device comprises a housing having a first receiving section for receiving an energy converter for supplying electrical energy to a radio transmitter by converting mechanical energy into electrical energy, and an aperture for the actuation bolt, wherein the aperture has a second receiving section for rotatably accommodating the section of the actuation bolt having at least one outer edge. The device is characterized in that the first receiving section is disposed such that it is adjacent to the aperture, wherein a switch element of the energy converter extends into a rotational path of the at least one outer edge when the energy converter is in a receiving state, and can be actuated such that it causes a switching by means of the at least one outer edge during a rotation of the actuation bolt.
    Type: Grant
    Filed: February 19, 2015
    Date of Patent: September 8, 2020
    Assignee: ZF Friedrichshafen AG
    Inventor: Eduard Ruff
  • Patent number: 10760620
    Abstract: A gear unit for a motor vehicle with a main input shaft and an auxiliary input shaft which is connected thereto via a constant gearwheel set step, wherein the constant gearwheel set step can further be connected to the output via a reverse gearwheel set step. At least one synchronized shifting clutch for connecting at least one idler gearwheel of the reverse gearwheel set step to the shaft carrying the idler gearwheel such that the idler gearwheel is fixed with respect to rotation relative to the shaft. The invention is further directed to a motor vehicle including such gear unit.
    Type: Grant
    Filed: June 29, 2017
    Date of Patent: September 1, 2020
    Assignee: ZF Friedrichshafen AG
    Inventor: Philipp Notheis
  • Patent number: 10760637
    Abstract: An adjustable damping valve device for a vibration damper, includes a main stage valve which is controlled by a pre-stage valve with a pre-stage valve body, which pre-stage valve can be actuated by an electromagnetic actuator, wherein an emergency operation valve controls the main stage valve during emergency operation, wherein an emergency operation armature is preloaded on the pre-stage valve body of the pre-stage valve by an emergency operation spring so that the pre-stage valve forms the emergency operation valve.
    Type: Grant
    Filed: December 15, 2015
    Date of Patent: September 1, 2020
    Assignee: ZF Friedrichshafen AG
    Inventors: Thomas Manger, Lukas Ruhmann, Stefan Schmitt
  • Patent number: 10763770
    Abstract: Operating an asynchronous machine includes: closed loop control of a first and a second three-phase winding by a first and a second closed loop control method, respectively. The second closed loop control method supplies a voltage vector to a second inverter device, and changes from the first closed loop control method to a first open loop control method. The first open loop control method includes supplying a first reference current vector to a first filter device, supplying a filtered first reference current vector to a calculation device for calculating an electrical angle, supplying the electrical angle to a first transformation device for transforming a first open loop control deviation vector, transforming a first open loop control deviation vector into a third voltage vector, and supplying the third voltage vector to the first inverter device for the operation of the first three-phase winding.
    Type: Grant
    Filed: May 15, 2019
    Date of Patent: September 1, 2020
    Assignee: ZF Friedrichshafen AG
    Inventor: Hassan Lamsahel
  • Patent number: 10759243
    Abstract: A wheel suspension (1) for a motor vehicle, having a wheel carrier (3) which is mounted so that the wheel carrier (3) can pivot relative to a wheel-guiding control arm (4). The wheel-guiding control arm (4) includes a longitudinal control arm section (4a) with a forward body-side bearing (11) and a transverse control arm section (4b) with a rear body-side bearing (12). The rear body-side bearing (12) is designed as a ball joint.
    Type: Grant
    Filed: December 8, 2016
    Date of Patent: September 1, 2020
    Assignee: ZF FRIEDRICHSHAFEN AG
    Inventors: Clemens Hacker, Knut Heidsieck
  • Patent number: 10760638
    Abstract: A vibration damper with a hydraulic end stop includes a cylinder in which a sleeve of plastic is axially fixed as part of the end stop. The sleeve has a circumferential collar on the outer side, via which collar the sleeve is axially supported at the cylinder side. The sleeve is supported via the circumferential collar directly on a carrying ring which has an L-shaped cross section and is axially clamped between an end face at the end of the cylinder and a piston rod guide of the vibration damper.
    Type: Grant
    Filed: May 16, 2019
    Date of Patent: September 1, 2020
    Assignee: ZF Friedrichshafen AG
    Inventors: Wolfgang Hertz, Stefan Steines, Monika Ahr
  • Patent number: 10759265
    Abstract: A transmission having five planetary gearsets and seven shift elements for achieving various ratios between drive and output shafts. A forward gearset has three shafts. Two intermediate gearsets have four shafts. Two main gearsets have at least four shafts. Depending on the shift states of the second and third shift elements, the forward gearset can generate two rotational speeds at the output side, which transfer from a forward gearset shaft to an intermediate gearset shaft. Depending on the shift states of the first to fifth shift elements, the intermediate gearset can generate eight rotational speeds at the output side, which pass from another intermediate gearset shaft to a main gearset shaft. Depending on the shift states of the seven shift elements, the main gearset can generate up to fourteen forward and two reverse gears at the output side, which are transferred by another main gearset shaft to the output shaft.
    Type: Grant
    Filed: November 16, 2017
    Date of Patent: September 1, 2020
    Assignee: ZF FRIEDRICHSHAFEN AG
    Inventors: Peter Ziemer, Kai Bornträger, Christoph Margraf, Stefan Brom, Andreas Beisswenger, Michael Trübenbach, Johannes Glückler
  • Patent number: 10760984
    Abstract: A wheel-force dynamometer (1) for the measurement of forces and torques acting upon a vehicle tire (2a) and a vehicle wheel (2) using force sensors (4, 24, 44). The vehicle wheel (2) is mounted and able to rotate on a wheel axle. The wheel-force dynamometer (1) has a wheel axle that is in the form of a hollow shaft (9, 29, 49) which is hydrostatically mounted on a rigid, fixed in position bearing journal (3, 23, 43).
    Type: Grant
    Filed: November 8, 2016
    Date of Patent: September 1, 2020
    Assignee: ZF FRIEDRICHSHAFEN AG
    Inventors: Jens Eisenbeiss, Roland Bösl
  • Publication number: 20200274266
    Abstract: An assembly element for establishing an electrical contact to an actuator for a vehicle transmission may include a base plate and two electrical circuit points projecting on one side of the base plate for the assembly element. The assembly element has a shavings protection device provided at least partially between the electrical circuit points, which is designed to at least partially impede a short circuit between the contacts when the assembly element is in contact with the actuator.
    Type: Application
    Filed: February 21, 2020
    Publication date: August 27, 2020
    Applicant: ZF Friedrichshafen AG
    Inventors: Florian Pawlak, Tobias Nusser, Karlheinz Mayr, Oliver Küpfer, Markus Moosmann
  • Publication number: 20200269795
    Abstract: The invention relates to a marking object that can be placed on a vehicle child seat for adaptive actuation of an airbag, which is configured to reflect electromagnetic radiation and mark a position and/or orientation of the vehicle child seat in relation to a vehicle seat for an imaging sensor based on the reflection, in order to actuate the airbag depending on the position and/or orientation of the vehicle child seat, wherein the marking object is a Quick Response code, radar reflector, lidar reflector, or infrared reflector. The invention also relates to a vehicle child seat, a method for determining a position and/or orientation of a vehicle child seat in relation to a vehicle seat, and interior monitoring system, a computer program for adaptive actuation of an airbag and a computer readable data carrier.
    Type: Application
    Filed: February 27, 2020
    Publication date: August 27, 2020
    Applicant: ZF Friedrichshafen AG
    Inventors: Jörg ANGERMAYER, Vincent CHOQUET
  • Publication number: 20200271218
    Abstract: The disclosure relates to a gear selection switch for a motor vehicle. The gear selection switch comprises at least one piezoelectric sensor element for detecting an actuation of the gear selection switch.
    Type: Application
    Filed: November 24, 2016
    Publication date: August 27, 2020
    Applicant: ZF Friedrichshafen AG
    Inventors: Daniel KREINEST, Vitali FRIBUS, Joachim SPRATTE, Alexander KIRILENKO
  • Publication number: 20200271223
    Abstract: The invention relates to a shifting selection and parking lock system for a motor vehicle including a shifting selection device for engaging and disengaging transmission gears and/or for selecting at least one driving program, and a parking lock device for implementing a transmission parking lock mode. The shifting selection device has at least one gearshift lever unit with at least one gearshift lever. The parking lock device has at least one mechanical locking device and at least one electromechanical actuator that actuates the mechanical locking device. The gearshift lever unit and the electromechanical actuator are disposed in a common housing or the actuator is disposed in a separate housing and the gearshift lever unit is disposed directly on the separate housing of the actuator. The housing can be disposed in the region of the central console of the motor vehicle and/or integrated therein.
    Type: Application
    Filed: December 8, 2016
    Publication date: August 27, 2020
    Applicant: ZF Friedrichshafen AG
    Inventors: Ludger Rake, Joachim Spratte, Waldemar Merling, Henning Wöhl-Bruhn, Andreas Löhner, Bernhard Bley, Norbert Pelz, Oleg Semke
  • Patent number: 10753421
    Abstract: A damping valve device for a vibration damper includes a first damping valve that moves into a through-flow operating position in a first operating range with increasing flow velocity of a damping medium. A second operating range with a progressive damping force characteristic is influenced by a throttle point in connection with a valve body that can be transferred into a throttle position. The valve body moves in closing direction with increasing flow velocity of the damping medium and is arranged in series with the damping valve. The valve body is constructed as a ring element with variable diameter that executes a radial closing movement in direction of a flow guide surface in which a defined minimum passage cross section is maintained.
    Type: Grant
    Filed: May 15, 2017
    Date of Patent: August 25, 2020
    Assignee: ZF Friedrichshafen AG
    Inventors: Jörg Rösseler, Aleksandar Knezevic, Benjamin Thiessen
  • Patent number: 10753431
    Abstract: A transmission (G) for a motor vehicle includes an electric motor (EM), an input shaft (GW1), an output shaft (GW2), two planetary gear sets (P1, P2), and at least five shift elements (K1, B1, K2, K3, K4), wherein different gear ratios between the input shaft (GW1) and the output shaft (GW2) are selectable by actuating the at least five shift elements (K1, B1, K2, K3, K4) and, in addition, in interaction with the electric motor (EM), different operating modes are implementable. A drive train for a motor vehicle including such a transmission (G) and to a method for operating same are also provided.
    Type: Grant
    Filed: September 13, 2018
    Date of Patent: August 25, 2020
    Assignee: ZF FRIEDRICHSHAFEN AG
    Inventors: Stefan Beck, Uwe Griesmeier, Matthias Horn, Johannes Kaltenbach, Jens Moraw, Gerhard Niederbrucker, Stephan Scharr, Viktor Warth, Michael Wechs
  • Patent number: 10752054
    Abstract: A vehicle axle includes, an axle gear unit housing and axle tubes adjoining the latter. The axle gear unit housing has an opening which is surrounded by a flange. Threaded blind bore holes extend beyond the thickness of the flange into the region of the wall of the axle gear unit housing which has radially outwardly on the side of the flange facing the axle gear unit housing a wall thickening which extends annularly radially circumferentially along the flange and which is configured in a continuously annular manner or so as to form spot faces partially in the areas of the threaded blind bore holes, wherein a joint flash extends in a central plane along the axle tubes and toward the flange 4 in the region of the axle gear unit housing and at the flange along the radially outer contour of the wall thickening.
    Type: Grant
    Filed: May 23, 2016
    Date of Patent: August 25, 2020
    Assignee: ZF Friedrichshafen AG
    Inventors: Manuel Bauer, Paul Lenz, Horst Sigl, Alexander Enderl, Rudolf Neumüller, Daniel Dudek, Stefan Brachmeier, Peter Haselberger, Daniela Wagner, Rainer Hildebrand
  • Patent number: 10753451
    Abstract: A ring gear (100) for a planetary transmission includes a gear ring (110) formed with an internal gearing (120) on an inner circumferential surface of the gear ring (110). The gear ring (110) also includes a radially projecting and unilaterally axially overhung flange (130) on an outer circumferential surface of the gear ring (110). The flange (130) is formed with a circumferential collar (131) and a collar overhang (132). The collar overhang (132) has a crown gearing (140). The crown gearing (140) is continuous and axially extends through the collar (131).
    Type: Grant
    Filed: September 15, 2016
    Date of Patent: August 25, 2020
    Assignee: ZF FRIEDRICHSHAFEN AG
    Inventor: Benjamin Schneider
  • Patent number: 10752248
    Abstract: A method for operating a motor vehicle, the motor vehicle including a prime mover (1), a transmission (2), and a driven end (3), wherein the transmission (2) is an automatic or automated transmission and is connected between the prime mover (1) and the driven end (3). The method includes activating a sailing mode of the motor vehicle depending on at least one operating condition of the motor vehicle; performing a gear select interlock in the transmission (2), while maintaining the sailing mode, when the sailing mode is active; and deactivating the sailing mode is subsequently depending on at least one operating condition of the motor vehicle. The gear select interlock is implemented in the transmission (2) depending on a rotational speed of the prime mover (1) and depending on synchronous speeds of the gears of the transmission (2).
    Type: Grant
    Filed: October 4, 2016
    Date of Patent: August 25, 2020
    Assignee: ZF FRIEDRICHSHAFEN AG
    Inventors: Peter Spoerl, Johannes Kemler, Franz-Josef Schuler