Patents by Inventor Jurgen Gerhart

Jurgen Gerhart 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: 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: 20180187776
    Abstract: A control device within an actuator includes control logic for a second actuator, the second actuator being connected with the first actuator through a communications interface. By storing the control logic in the second actuator, the construction space for this second actuator is optimized. By integrating the control logic into a control device of the first actuator, the power density of the control device is increased.
    Type: Application
    Filed: May 31, 2016
    Publication date: July 5, 2018
    Applicant: Schaeffler Technologies AG & Co. KG
    Inventors: Martin ZIMMERMANN, Bruno MÜLLER, Jürgen GERHART
  • 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
  • Patent number: 7306539
    Abstract: A method of controlling at least a fifth characteristic operating value of a motor vehicle power train includes the step of performing an emergency adaptation of at least one of the stored clutch-disengagement thresholds during an operating phase of the motor vehicle, if predetermined third conditions are present. The method also includes the step of performing a nonemergency adaptation of at least one of the stored clutch-disengagement thresholds at the end of the operating phase if predetermined fourth conditions are present.
    Type: Grant
    Filed: February 21, 2006
    Date of Patent: December 11, 2007
    Assignee: Luk Lamellen und Kupplungsbau Beteiligungs KG
    Inventors: Oliver Amendt, Peter Buhrle, Mario Jung, Jurgen Gerhart, Johannes Moosheimer
  • Publication number: 20060142120
    Abstract: A first characteristic operating value, for example the amount of transmissible clutch torque, in a motor vehicle power train with an engine is controlled by using at least a second characteristic value. The second characteristic value is subject to adaptation, if necessary, during an operating phase of the motor vehicle. The method steps are: starting the engine; and assuring that for a predetermined first time period after starting the engine, the first characteristic operating value is controlled independently of the second characteristic value, wherein the predetermined first time period depends on at least one predetermined third characteristic operating value.
    Type: Application
    Filed: February 21, 2006
    Publication date: June 29, 2006
    Applicant: LuK Lamellen und Kupplungsbau Beteiligungs KG
    Inventors: Oliver Amendt, Peter Buhrle, Mario Jung, Jurgen Gerhart, Johannes Moosheimer
  • Patent number: 7056262
    Abstract: A first characteristic operating value, for example the amount of transmissible clutch torque, in a motor vehicle power train with an engine is controlled by using at least a second characteristic value. The second characteristic value is subject to adaptation, if necessary, during an operating phase of the motor vehicle. The method steps are: starting the engine; and assuring that for a predetermined first time period after starting the engine, the first characteristic operating value is controlled independently of the second characteristic value, wherein the predetermined first time period depends on at least one predetermined third characteristic operating value.
    Type: Grant
    Filed: December 20, 2002
    Date of Patent: June 6, 2006
    Assignee: LuK Lamellen und Kupplungsbau Beteiligungs KG
    Inventors: Oliver Amendt, Peter Bührle, Mario Jung, Jürgen Gerhart, Johannes Moosheimer
  • Patent number: 7054732
    Abstract: A method for controlling an automated clutch of a motor vehicle, wherein the frictional engagement of the clutch is characterized by a physical friction value that changes dependent on an operating state of the clutch, has the steps of: a) modeling the physical friction value as a friction value (RW) in a clutch control unit based on at least one parameter of the power train, wherein the friction value (RW) contains a component representing a dependency of the friction value from a clutch temperature, and b) controlling the frictional engagement of the automated clutch based on the friction value (RW) that was obtained as a result of the modeling in step a).
    Type: Grant
    Filed: February 2, 2005
    Date of Patent: May 30, 2006
    Assignee: LuK Lamellen und Kupplungsbau Beteiligungs KG
    Inventors: Christian Rieger, Jurgen Eich, Robert Fischer, Jurgen Gerhart, Mario Jung, Holger Stork
  • Patent number: 6922623
    Abstract: An automated clutch of a motor vehicle is controlled according to a method with the steps: a) determining a first engine rpm-gradient signal (dnm(M)/dt) based on an engine torque signal (Me) and a target value (Mk) of the clutch torque; b) determining an engine rpm-rate signal (nm(R)) based on the engine rpm-gradient signal from step a); c) comparing an actual engine rpm-rate (nm) to the engine rpm-rate signal (nm(R)) from step b) and determining a correction quantity K based on the comparison; and d) correcting the first engine rpm-gradient signal (dnm(M)/dt) with the correction quantity K.
    Type: Grant
    Filed: October 2, 2003
    Date of Patent: July 26, 2005
    Assignee: LuK Lamellen und Kupplungsbau Beteiligungs KG
    Inventors: Christian Rieger, Jürgen Eich, Robert Fischer, Jürgen Gerhart, Mario Jung, Holger Stork
  • Publication number: 20050130800
    Abstract: A method for controlling an automated clutch of a motor vehicle, wherein the frictional engagement of the clutch is characterized by a physical friction value that changes dependent on an operating state of the clutch, has the steps of: a) modeling the physical friction value as a friction value (RW) in a clutch control unit based on at least one parameter of the power train, wherein the friction value (RW) contains a component representing a dependency of the friction value from a clutch temperature, and b) controlling the frictional engagement of the automated clutch based on the friction value (RW) that was obtained as a result of the modeling in step a).
    Type: Application
    Filed: February 2, 2005
    Publication date: June 16, 2005
    Applicant: LuK Lamellen und Kupplungsbau Beteiligungs KG
    Inventors: Christian Rieger, Jurgen Eich, Robert Fischer, Jurgen Gerhart, Mario Jung, Holger Stork
  • Publication number: 20040128050
    Abstract: An automated clutch of a motor vehicle is controlled according to a method with the steps:
    Type: Application
    Filed: October 2, 2003
    Publication date: July 1, 2004
    Applicant: LuK Lamellen und Kupplungsbau Beteiligungs KG.
    Inventors: Christian Rieger, Jurgen Eich, Robert Fischer, Jurgen Gerhart, Mario Jung, Holger Stork
  • Patent number: 6647333
    Abstract: A method of regulating the position of a clutch actuator in a vehicle employs the concept of adapting the servo-loop parameters of a position controller of the clutch to different operating conditions of the vehicle, as well as the concept of applying and continuously adapting a bias current of the actuator motor in order to avoid or minimize the incidence of a hunting or after-regulation behavior of the control loop and to thereby minimize the energy consumption of the actuator motor.
    Type: Grant
    Filed: December 14, 2001
    Date of Patent: November 11, 2003
    Assignee: LuK Lamellen und Kupplungsbau Beteiligungs KG
    Inventors: Thomas Jäger, Reinhard Berger, Martin Zimmermann, Georg Schneider, Mario Jung, Jürgen Gerhart, Alexander Renfer
  • Publication number: 20030148852
    Abstract: A first characteristic operating value, for example the amount of transmissible clutch torque, in a motor vehicle power train with an engine is controlled by using at least a second characteristic value. The second characteristic value is subject to adaptation, if necessary, during an operating phase of the motor vehicle.
    Type: Application
    Filed: December 20, 2002
    Publication date: August 7, 2003
    Applicant: LuK Lamellen und Kupplungsbau Beteiligungs KG
    Inventors: Oliver Amendt, Peter Buhrle, Mario Jung, Jurgen Gerhart, Johannes Moosheimer
  • Publication number: 20020128763
    Abstract: A method of regulating the position of a clutch actuator in a vehicle employs the concept of adapting the servo-loop parameters of a position controller of the clutch to different operating conditions of the vehicle, as well as the concept of applying and continuously adapting a bias current of the actuator motor in order to avoid or minimize the incidence of a hunting or after-regulation behavior of the control loop and to thereby minimize the energy consumption of the actuator motor.
    Type: Application
    Filed: December 14, 2001
    Publication date: September 12, 2002
    Applicant: LuK Lamellen und Kupplungsbau Beteiligungs KG
    Inventors: Thomas Jager, Reinhard Berger, Martin Zimmermann, Georg Schneider, Mario Jung, Jurgen Gerhart, Alexander Renfer