Patents by Inventor Stefan Groetzinger

Stefan Groetzinger 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: 11959547
    Abstract: A sensor arrangement (46) for an automated transmission includes multiple axially parallel shift rails (4, 14, 24, 34) being axially displaceable by associated shift actuators (8, 18, 28, 38). The sensor arrangement (46) has multiple displacement sensors (48, 56, 64, 72) made up of a signal transmitter (50, 58, 66, 74) attached to a shift rail and a signal receiver (52, 60, 68, 76) fixedly arranged on a housing. The signal transmitters are in the form of a permanent magnet, and the signal receivers are in the form of a 3D Hall sensor. To detect an external magnetic interference field, which can corrupt the sensor signals from the displacement sensors (48, 56, 64, 72), the signal transmitters (50, 58, 66, 74) have identical axial alignments of their magnetic poles, and the signal receivers (52, 60, 68, 76) are in a common plane (80) that is horizontal in their installation position.
    Type: Grant
    Filed: September 27, 2021
    Date of Patent: April 16, 2024
    Assignee: ZF CV Systems Global GmbH
    Inventors: Dennis Reimann, Stefan Groetzinger, Robert Sohn
  • Publication number: 20230366462
    Abstract: A sensor arrangement (46) for an automated transmission includes multiple axially parallel shift rails (4, 14, 24, 34) being axially displaceable by associated shift actuators (8, 18, 28, 38). The sensor arrangement (46) has multiple displacement sensors (48, 56, 64, 72) made up of a signal transmitter (50, 58, 66, 74) attached to a shift rail and a signal receiver (52, 60, 68, 76) fixedly arranged on a housing. The signal transmitters are in the form of a permanent magnet, and the signal receivers are in the form of a 3D Hall sensor. To detect an external magnetic interference field, which can corrupt the sensor signals from the displacement sensors (48, 56, 64, 72), the signal transmitters (50, 58, 66, 74) have identical axial alignments of their magnetic poles, and the signal receivers (52, 60, 68, 76) are in a common plane (80) that is horizontal in their installation position.
    Type: Application
    Filed: September 27, 2021
    Publication date: November 16, 2023
    Inventors: Dennis Reimann, Stefan Groetzinger, Robert Sohn
  • Patent number: 11112003
    Abstract: In a device for sensing the position of a shift fork in a transmission, the shift fork is connected to a piston rod of a shifting piston which is guided axially in a shifting cylinder. The shift fork engages an axially slidable sliding sleeve, which slides on a transmission shaft, to engage or disengage a transmission stage. A magnet functioning as a signal generator is arranged on an actuating element, such as the switching piston, piston rod or shift fork. A 3D Hall sensor positionally fixed relative to the magnet functions as a signal receiver, sensing a magnetic field generated by the magnet. An electronic control unit connected to the 3D hall sensor determines the position of the shift fork from the relative positions of the magnet and 3D Hall sensor and transmits the position as a signal, taking into account linear, rotational, and/or pivoting movements of the actuating element.
    Type: Grant
    Filed: March 20, 2018
    Date of Patent: September 7, 2021
    Assignee: WABCO GmbH
    Inventors: Stefan Groetzinger, Michael John, Dirk Müntefering, Romain Poux
  • Publication number: 20200248794
    Abstract: In a device for sensing the position of a shift fork in a transmission, the shift fork is connected to a piston rod of a shifting piston which is guided axially in a shifting cylinder. The shift fork engages an axially slidable sliding sleeve, which slides on a transmission shaft, to engage or disengage a transmission stage. A magnet functioning as a signal generator is arranged on an actuating element, such as the switching piston, piston rod or shift fork. A 3D Hall sensor positionally fixed relative to the magnet functions as a signal receiver, sensing a magnetic field generated by the magnet. An electronic control unit connected to the 3D hall sensor determines the position of the shift fork from the relative positions of the magnet and 3D Hall sensor and transmits the position as a signal, taking into account linear, rotational, and/or pivoting movements of the actuating element.
    Type: Application
    Filed: March 20, 2018
    Publication date: August 6, 2020
    Inventors: Stefan GROETZINGER, Michael JOHN, Dirk MÜNTEFERING, Romain POUX
  • Publication number: 20190390765
    Abstract: A device (1) for detecting operating states in a transmission has position sensors (4) for detecting the respective position of shiftable gear elements (6) and has a detector (10) for measuring the temperature in the transmission housing (2). In order to obtain sufficiently reliable and precise information about the temperature in the transmission housing (2), temperatures are measured at locations which are as different as possible in the transmission housing (2). For this purpose there is provision that at least one position sensor (4) has a sensor housing (3), in or at which a detector (10) for measuring the temperature is structurally integrated. In order to determine the temperature at different locations in the transmission housing (2), at least two such combined sensors (4) are used.
    Type: Application
    Filed: March 6, 2018
    Publication date: December 26, 2019
    Inventors: Stefan GROETZINGER, Michael JOHN, Dirk MÜNTEFERING
  • Publication number: 20180111438
    Abstract: Disclosed is a method for measuring height in a vehicle by determining a distance between a vehicle chassis and a vehicle axle or parts connected thereto. In the method, a first device (12) with a first transmitter (13) and a first receiver (14) and a second device (15) with a second transmitter (16) and a second receiver (17) interact. In particular, the first transmitter (13) produces an electromagnetic field, and the second receiver (17) detects the electromagnetic field. The second device (15) with the second transmitter (16) produces a signal from the detected field and transmits the signal, which correlates with the distance from the first transmitter (13) to the second receiver (17). The first device (12) with the first receiver (14) receives the signal. A system, an electronically controlled pneumatic suspension, an electronic control unit, and a vehicle are also disclosed.
    Type: Application
    Filed: February 6, 2016
    Publication date: April 26, 2018
    Inventors: Thomas BREHMER, Stefan GROETZINGER, Siegfried HÖFLER, Johann LUCAS, Joachim UHL
  • Patent number: 5867022
    Abstract: An angle-of-rotation sensor comprises a coil, a magnetically conductive element within the coil which is rotatable around an axis of rotation, the axis of rotation of the magnetically conductive element being at least partially within the coil, and a single winding for the coil. The angle-of-rotation of the magnetically conductive element is determined by measuring the change in self-inductance in the coil when the magnetically conductive element is caused to rotate.
    Type: Grant
    Filed: March 20, 1997
    Date of Patent: February 2, 1999
    Assignee: WABCO GmbH
    Inventors: Gerd Eden, Horst Heinrich, Stefan Groetzinger