Patents by Inventor Markus Dietrich

Markus Dietrich 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: 10385934
    Abstract: The invention relates to a method for determining and/or controlling a position of an electric motor, in particular in a clutch actuation system of a motor vehicle, wherein the position of a rotor of the electric motor is picked up by a sensor system situated on a stator of the electric motor outside an axis of rotation of the electric motor, and the position signal picked up by the sensor system is analyzed by an analysis unit. In a method in which the rotor position is detected with a high level of certainty, the position signal is transmitted to the analysis unit depending on a transmission distance between the sensor system and the analysis unit by means of an SPI protocol signal for short transmission distances, and/or by means of a PWM signal for longer transmission distances.
    Type: Grant
    Filed: November 4, 2013
    Date of Patent: August 20, 2019
    Assignee: SCHAEFFLER TECHNOLOGIES AG & CO. KG
    Inventor: Markus Dietrich
  • Publication number: 20190249587
    Abstract: Various embodiments include a catalyst measuring system for determining the aging state of a catalytic converter comprising: an SCR catalytic converter; and a high-frequency measuring arrangement including a processor, a first antenna, and a second antenna. The first antenna is located upstream of the SCR catalytic converter in the exhaust tract and the second antenna is located downstream of the catalytic converter. The processor instructs the antennas to selectively emit and receive electromagnetic signals and evaluates the transmitted and the received electromagnetic signals to compare them with predefined threshold values. The processor determines an aging state of the SCR catalytic converter based on the comparison.
    Type: Application
    Filed: September 18, 2017
    Publication date: August 15, 2019
    Applicant: CPT Group GmbH
    Inventors: Ralf Moos, Willibald Reitmeier, Markus Dietrich, Denny Schädlich, Markus Hein, Katharina Burger
  • Publication number: 20190226382
    Abstract: Various embodiments include a catalyst measuring system for on-board diagnostics and for determining the aging of an SCR catalytic converter for a vehicle comprising: a processor; an SCR catalytic converter for purifying exhaust gas of the vehicle; a high-frequency sensor for determining the ammonia loading of the SCR catalytic converter; a NOx sensor for sensing the NOx concentration downstream of the SCR catalytic converter; and an ammonia dosing system for injecting ammonia into an exhaust system of the vehicle. The control device instructs the ammonia dosing system to inject ammonia selectively into the exhaust system at a plurality of different dosing rates. The control device evaluates data received from the NOx sensor and of the high-frequency sensor to calculate the ammonia dosing rate.
    Type: Application
    Filed: August 2, 2017
    Publication date: July 25, 2019
    Applicant: CPT Group GmbH
    Inventors: Ralf Moos, Willibald Reitmeier, Markus Dietrich, Denny Schädlich, Markus Hein, Katharina Burger
  • Patent number: 10162009
    Abstract: The invention relates to a method for determining a fault in an electronically commutated electric motor, in which at least one stator coil of the electric motor is connected in parallel in each motor phase, in which a motor phase is energized and the current flowing through this motor phase is measured. In a method in which a defect in the electric motor is identified reliably, the three motor phases are energized one after the other and the current occurring during this energization of the individual motor phases is measured, wherein the currents measured in the three motor phases are compared with one another and a defect in the electric motor is identified if the measured currents differ from one another.
    Type: Grant
    Filed: August 1, 2014
    Date of Patent: December 25, 2018
    Assignee: SCHAEFFLER TECHNOLOGIES AG & CO. KG
    Inventors: Stefan Schmaus, Markus Dietrich, Martin Zimmermann, Francis Moebs
  • Patent number: 10119838
    Abstract: The invention relates to a method for identifying the position of a rotor of an electric motor, in which method a target arranged on a rotor is sensed using a sensor. In a method which can be carried out cost-effectively and nevertheless delivers highly accurate sensor signals, a rotational movement of the rotor is detected using an inductive or a capacitive sensor.
    Type: Grant
    Filed: April 20, 2015
    Date of Patent: November 6, 2018
    Assignee: Schaeffler Technologies AG & Co. KG
    Inventors: Markus Dietrich, Jurgen Gerhart
  • Publication number: 20180245675
    Abstract: An angle-measuring device is provided for a rotationally-driven linear actuator, which can be implemented into a clutch actuator. A rotor element has an axis of rotation and rotates concentrically with a rotor of a rotary drive for an axially movable linear actuator element. A measurement magnet arrangement is fixed relative to the rotor element and has a polarization. The polarization is oriented in such a way that the magnetic field lines can change with a rotation of the rotor element so as to enable the angle to be precisely determined from at least one measurement position. At one location, a 360-degree sensor is provided for measuring angular positions based on the measurement magnet arrangement. At another location, a revolution-counting sensor is provided for counting a number of revolutions carried out based on the measurement magnet arrangement.
    Type: Application
    Filed: August 24, 2016
    Publication date: August 30, 2018
    Applicant: SCHAEFFLER TECHNOLOGIES AG & CO. KG
    Inventors: Markus DIETRICH, Laszlo MAN, Peter GREB
  • Publication number: 20180172477
    Abstract: A method for operating a rotation sensor comprising at least four magnetoresistive sensor elements is described. Each sensor element comprises a packet of a ferromagnetic reference layer and a sensitive ferromagnetic layer and a non-magnetic layer separating the reference layer from the sensitive layer. The layers are designed such that the orientation of the magnetization in the respective layer is possible in the longitudinal direction of the layer. The at least one sensor element is formed in a plane in a spiral form with at least one complete winding and the windings are implemented concentrically. The sensor element is bent into a winding in different segments. Adjacent segments enclose an angle between them and each complete winding comprises a predetermined number of segments.
    Type: Application
    Filed: May 23, 2016
    Publication date: June 21, 2018
    Applicant: Schaeffler Technologies AG & Co. KG
    Inventors: Markus Dietrich, Oliver Rink
  • Publication number: 20170321766
    Abstract: The invention relates to a method for determining and/or controlling a position of an electric motor, in particular in a clutch actuation system of a motor vehicle, wherein the position of a rotor of the electric motor is picked up by a sensor system situated on a stator of the electric motor outside an axis of rotation of the electric motor, and the position signal picked up by the sensor system is analyzed by an analysis unit. In a method in which the rotor position is detected with a high level of certainty, the position signal is transmitted to the analysis unit depending on a transmission distance between the sensor system and the analysis unit by means of an SPI protocol signal for short transmission distances, and/or by means of a PWM signal for longer transmission distances.
    Type: Application
    Filed: November 4, 2013
    Publication date: November 9, 2017
    Inventor: Markus Dietrich
  • Publication number: 20170038226
    Abstract: The invention relates to a method for identifying the position of a rotor of an electric motor, in which method a target arranged on a rotor is sensed using a sensor. In a method which can be carried out cost-effectively and nevertheless delivers highly accurate sensor signals, a rotational movement of the rotor is detected using an inductive or a capacitive sensor.
    Type: Application
    Filed: April 20, 2015
    Publication date: February 9, 2017
    Applicant: Schaeffler Technologies AG & Co. KG
    Inventors: Markus Dietrich, Jurgen Gerhart
  • Publication number: 20160178699
    Abstract: The invention relates to a method for determining a fault in an electronically commutated electric motor, in which at least one stator coil of the electric motor is connected in parallel in each motor phase, in which a motor phase is energized and the current flowing through this motor phase is measured. In a method in which a defect in the electric motor is identified reliably, the three motor phases are energized one after the other and the current occurring during this energization of the individual motor phases is measured, wherein the currents measured in the three motor phases are compared with one another and a defect in the electric motor is identified if the measured currents differ from one another.
    Type: Application
    Filed: August 1, 2014
    Publication date: June 23, 2016
    Applicant: Schaeffler Technologies AG & CO. KG
    Inventors: Stefan Schmaus, Markus Dietrich, Martin Zimmermann, Francis Moebs
  • Patent number: 7827958
    Abstract: In a gas exchange valve actuating device having a lever for transmitting a drive movement to at least one gas exchange valve of an engine braking control unit of an internal combustion engine, the internal combustion engine includes a compact braking control unit which is coupled to the valve operating lever for controlling actuation of the gas exchange valves in a braking mode of engine operation.
    Type: Grant
    Filed: July 16, 2008
    Date of Patent: November 9, 2010
    Assignee: Daimler AG
    Inventors: Markus Dietrich, Stefan Rudert
  • Publication number: 20090071436
    Abstract: In a gas exchange valve actuating device having a lever for transmitting a drive movement to at least one gas exchange valve of an engine braking control unit of an internal combustion engine, the internal combustion engine includes a compact braking control unit which is coupled to the valve operating lever for controlling actuation of the gas exchange valves in a braking mode of engine operation.
    Type: Application
    Filed: July 16, 2008
    Publication date: March 19, 2009
    Inventors: Markus Dietrich, Stefan Rudert
  • Publication number: 20080306714
    Abstract: A three-dimensional component (1) with an external geometry and an internal geometry is digitized in a destructive method. Three-dimensional marking bodies (30) are applied to the outer surface of the body (1). The external geometry of the component (1) with the marking bodies (30) is then digitized using a suitable method and a reference data record is created. The component (1) is disassembled into segments so that all contours of the internal geometry are exposed, after which these segments are digitized. The digital data records of the segments are finally correctly aligned in space and to one another with the aid of the reference data record of the component (1) with the marking geometries (30) and combined. The method is particularly suitable for digitizing components (1) made of materials which are difficult to penetrate with radiation and/or have a high wall thickness.
    Type: Application
    Filed: July 18, 2008
    Publication date: December 11, 2008
    Applicant: ALSTOM TECHNOLOGY LTD.
    Inventors: Claudio Ferrarese, Harald Moehlig, Christopher John Hulme, Markus Dietrich
  • Patent number: 6821656
    Abstract: The invention relates to a material, in particular for a thermal insulation layer, with increased thermal stability, a low heat conductivity and a large thermal coefficient of expansion. According to the invention, said material comprises lanthanides, in particular the elements La, Ce, Nd, Yb, Lu, Er or Tm, which preferably occur as a mixture in a Perovskite structure. Said thermal insulation layer is particularly suitable for replacing thermal insulation layers comprising yttrium stabilized zirconium oxides (YSZ) as the thermal stability thereof is given as well over 1200° C.
    Type: Grant
    Filed: May 6, 2003
    Date of Patent: November 23, 2004
    Assignee: Forschungszentrum Julich GmbH
    Inventors: Markus Dietrich, Robert Vassen, Detlev Stöver
  • Publication number: 20040101699
    Abstract: The invention relates to a heat insulating layer on a metallic substrate for using for high temperatures, especially for temperatures above 1300° C. Starting with a base of La2Zr2O7, the properties of the heat insulating substance to be used as the heat insulating layer are regularly improved, by substituting lanthanum cations with ions of elements Nd, Eu, Dy, Sm and/or Gd. An additional, at least partial substitution of the zirconium cations by Ce, Hf or Ta is advantageous. Improving the properties results especially in a high thermal coefficient of dilation &agr; and low heat conductivity &lgr;.
    Type: Application
    Filed: October 2, 2003
    Publication date: May 27, 2004
    Inventors: Robert Vassen, Henry Bosch, Markus Dietrich, Xueqiang Cao, Detlev Stover, Gerhard Pracht
  • Publication number: 20040043261
    Abstract: The invention relates to a material, in particular for a thermal insulation layer, with increased thermal stability, a low heat conductivity and a large thermal coefficient of expansion. According to the invention, said material comprises lanthanides, in particular the elements La, Ce, Nd, Yb, Lu, Er or Tm, which preferably occur as a mixture in a Perovskite structure. Said thermal insulation layer is particularly suitable for replacing thermal insulation layers comprising yttrium stabilised zirconium oxides (YSZ) as the thermal stability thereof is given as well over 1200° C.
    Type: Application
    Filed: May 6, 2003
    Publication date: March 4, 2004
    Inventors: Markus Dietrich, Robert Vassen, Detlev Stver
  • Publication number: 20030148148
    Abstract: The invention discloses a component with a heat-insulating layer on its surface. The heat-insulating layer comprises a lower region and an upper region. The lower region is situated between the component and the upper region. The lower region consists entirely or predominantly of YSZ or a glass-metal composite material.
    Type: Application
    Filed: November 21, 2002
    Publication date: August 7, 2003
    Inventors: Markus Dietrich, Robert Vassen, Cao Xueqiang, Detlev Stover
  • Patent number: 5365907
    Abstract: In a cylinder head for a fuel injected internal combustion engine in which a nozzle holder with a fuel injection nozzle is mounted and engaged by a pressure tube disposed in a cylindrical recess, the pressure tube is axially forced into firm engagement with the nozzle holder by a hollow compression screw through which the pressure tube extends so that its free end projects outwardly and an injection pipe is mounted onto the free end of the pressure tube by means of a union nut for sealing the injection pipe to the pressure tube.
    Type: Grant
    Filed: October 27, 1993
    Date of Patent: November 22, 1994
    Assignee: Mercedes-Benz AG
    Inventors: Markus Dietrich, Walter Aupperle
  • Patent number: 4881499
    Abstract: A hydraulic play compensating element adapted to be positioned in the valve train of an internal-combustion engine is described which comprises a cylinder part closes at one end and a piston part slidable longitudinally in the latter. The piston part contains a supply chamber which is pressurized by lubricating oil from the lubricating oil circuit and which is separated from a pressure chamber by a connecting duct controlled by a valve. In order to switch off the play compensating function of the play compensating element during engine braking service, a shut-off valve is provided in the supply chamber for closing or opening the connecting duct as a function of the lubricating oil pressure in the supply chamber.
    Type: Grant
    Filed: January 13, 1989
    Date of Patent: November 21, 1989
    Assignee: Mercedes-Benz AG
    Inventors: Markus Dietrich, Frank Berger