Patents by Inventor David Bitterolf

David Bitterolf 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: 11567470
    Abstract: In order to be able to take into account machining configurations more flexibly, a method for optimizing numerically controlled machining of a workpiece includes ascertaining geometric interaction data. A relationship between a force to be expected and a configuration parameter of the machining is determined on the basis of the interaction data. The force is calculated during the machining on the basis of the relationship and a current value of the at least one configuration parameter. The machining is adapted depending on the calculated force.
    Type: Grant
    Filed: December 17, 2019
    Date of Patent: January 31, 2023
    Assignee: SIEMENS AKTIENGESELLSCHAFT
    Inventors: Dirk Hartmann, David Bitterolf, Hans-Georg Köpken, Birgit Obst, Florian Ulli Wolfgang Schnös, Sven Tauchmann
  • Patent number: 11467564
    Abstract: A first drive operates directly on a machine element, whereas a second drive operates on a machine element via a speed-changing device. A position controller receives a position setpoint value and a position actual value of the machine element and determines therefrom a speed setpoint value for the machine element. A first determining device receives the speed setpoint value and determines a resulting speed setpoint value using the speed setpoint value. A first speed controller determines a first force setpoint value from the resulting speed setpoint value and the speed actual value of the machine element and controls the first drive depending on the first force setpoint value. A second speed controller determines a second force setpoint value from the resulting speed setpoint value and the speed actual value of the second drive and controls the second drive depending on the force setpoint value.
    Type: Grant
    Filed: May 2, 2019
    Date of Patent: October 11, 2022
    Assignee: Siemens Aktiengesellschaft
    Inventors: David Bitterolf, Sven Tauchmann
  • Publication number: 20220088735
    Abstract: In order to be able to take into account machining configurations more flexibly, a method for optimizing numerically controlled machining of a workpiece includes ascertaining geometric interaction data. A relationship between a force to be expected and a configuration parameter of the machining is determined on the basis of the interaction data. The force is calculated during the machining on the basis of the relationship and a current value of the at least one configuration parameter. The machining is adapted depending on the calculated force.
    Type: Application
    Filed: December 17, 2019
    Publication date: March 24, 2022
    Applicant: Siemens Aktiengesellschaft
    Inventors: Dirk Hartmann, DAVID BITTEROLF, HANS-GEORG KÖPKEN, BIRGIT OBST, FLORIAN ULLI WOLFGANG SCHNÖS, SVEN TAUCHMANN
  • Publication number: 20220063094
    Abstract: The movement of a machine element of a machine that can be driven via a shaft with the aid of a motor can be guided by specifying a setpoint guidance variable describing a desired movement process of the machine element for the actuation of the motor and determining an actual pilot variable and/or an actual guidance variable from the setpoint guidance variable by subjecting the setpoint guidance variable to a digital path model which simulates the dynamic behavior of the machine element and the motor. The digital path model is parameterized by the total moment of inertia and the poles and zeros of the transfer function of the mechanical system consisting of motor, shaft and machine element.
    Type: Application
    Filed: August 25, 2021
    Publication date: March 3, 2022
    Applicant: Siemens Aktiengesellschaft
    Inventors: David Bitterolf, Hartmut Linke, Fabian Erik Lorz
  • Patent number: 11262721
    Abstract: A movement controller of a machine uses in the context of processing a part program defining a useful processing action a parameter set having a plurality of parameters to determine, based on commands of the part program and actual values of a number of axes of the machine controlled by the movement controller, control commands for drives of the machine which are associated with the axes and to apply the determined control commands to the drives. A checking device checks the respective parameters for compliance with conditions defined by respective physical characteristics. In many cases, the checking device can determine the respective physical characteristics using other parameters of the parameter set.
    Type: Grant
    Filed: October 17, 2017
    Date of Patent: March 1, 2022
    Assignee: SIEMENS AKTIENGESELLSCHAFT
    Inventors: David Bitterolf, Carsten Hamm, Theo Reichel
  • Patent number: 11146189
    Abstract: A control device for drives of a machine switches between normal operation and special operation depending on power demand from a power supply. In both operating modes, the control device cyclically determines preliminary current setpoint values. In normal operation, the current setpoint values match the preliminary setpoint values. In special operation, the control device dynamically determines a proportional factor for the drives depending on nominal and/or actual operating states of the drives. The control device determines current setpoint values by modifying the preliminary current setpoint values so that a respective drive draws no more power than the product of the respective proportional factor and the available total power. The current setpoint values and the current actual values are fed to drive controllers for the first drives, by means of which the preliminary first current setpoint values are determined. The control characteristics of the drive controllers include an integral part.
    Type: Grant
    Filed: August 20, 2019
    Date of Patent: October 12, 2021
    Assignee: Siemens Aktiengesellschaft
    Inventors: David Bitterolf, Stefan Rupprecht, Bernd Wedel
  • Publication number: 20210194397
    Abstract: A control device for drives of a machine switches between normal operation and special operation depending on power demand from a power supply. In both operating modes, the control device cyclically determines preliminary current setpoint values. In normal operation, the current setpoint values match the preliminary setpoint values. In special operation, the control device dynamically determines a proportional factor for the drives depending on nominal and/or actual operating states of the drives. The control device determines current setpoint values by modifying the preliminary current setpoint values so that a respective drive draws no more power than the product of the respective proportional factor and the available total power. The current setpoint values and the current actual values are fed to drive controllers for the first drives, by means of which the preliminary first current setpoint values are determined. The control characteristics of the drive controllers include an integral part.
    Type: Application
    Filed: August 20, 2019
    Publication date: June 24, 2021
    Applicant: Siemens Aktiengesellschaft
    Inventors: David BITTEROLF, STEFAN RUPPRECHT, BERND WEDEL
  • Publication number: 20200174436
    Abstract: A movement controller of a machine uses in the context of processing a part program defining a useful processing action a parameter set having a plurality of parameters to determine, based on commands of the part program and actual values of a number of axes of the machine controlled by the movement controller, control commands for drives of the machine which are associated with the axes and to apply the determined control commands to the drives, A checking device checks the respective parameters for compliance with conditions defined by respective physical characteristics. In many cases, the checking device can determine the respective physical characteristics using other parameters of the parameter set.
    Type: Application
    Filed: October 17, 2017
    Publication date: June 4, 2020
    Applicant: SIEMENS AKTIENGESELLSCHAFT
    Inventors: DAVID BITTEROLF, CARSTEN HAMM, THEO REICHEL
  • Publication number: 20200159189
    Abstract: A first drive operates directly on a machine element, whereas a second drive operates on a machine element via a speed-changing device. A position controller receives a position setpoint value and a position actual value of the machine element and determines therefrom a speed setpoint value for the machine element. A first determining device receives the speed setpoint value and determines a resulting speed setpoint value using the speed setpoint value. A first speed controller determines a first force setpoint value from the resulting speed setpoint value and the speed actual value of the machine element and controls the first drive depending on the first force setpoint value. A second speed controller determines a second force setpoint value from the resulting speed setpoint value and the speed actual value of the second drive and controls the second drive depending on the force setpoint value.
    Type: Application
    Filed: May 2, 2019
    Publication date: May 21, 2020
    Applicant: SIEMENS AKTIENGESELLSCHAFT
    Inventors: David Bitterolf, SVEN TAUCHMANN
  • Publication number: 20200086375
    Abstract: A method for motion planning for a conveyor system of a servo press installation, a motion controller for a conveyor system of a servo press installation, and to an associated computer program product, wherein an angular offset is optimized with respect to power peaks.
    Type: Application
    Filed: September 17, 2019
    Publication date: March 19, 2020
    Inventors: David Bitterolf, Stephan HOJA, Dominik KNEISSL, Oleg SCHLEGEL, Tina STÖCKEL
  • Publication number: 20200061832
    Abstract: The invention relates to a method for the assessment of a drive system (22) of a machine tool (21) or of a production machine (21), the drive system (22) having an axis (23, 24, 25), wherein a load of the drive system (22) is simulated, a drive profile (20) being used for simulation, actual values of the drive system (22) being simulated, the simulated actual values (40) being correlated with comparative values (41). The drive system (22) has at least one axis (23, 24, 25), a simulated load of the drive system (22) being correlated with at least one comparative value (41) on the basis of a drive profile (20).
    Type: Application
    Filed: February 26, 2018
    Publication date: February 27, 2020
    Applicant: Siemens Aktiengesellschaft
    Inventors: Jochen Bretschneider, MAXIMILIAN KLAUS, DAVID BITTEROLF, CARSTEN HAMM, THEO REICHEL
  • Patent number: 10481578
    Abstract: A drivetrain for linear movement of a machine component along a linear guide of a machine includes a motor with a motor-measuring system. A length-measuring system is assigned to the linear guide for determining a position of the machine component. To determine rigidity of the drivetrain, a constant acceleration for the machine component is predetermined by a numerical controller for performing closed-loop control of the movement of the machine component. The numerical controller determines a difference between a position of the machine component derived from the motor-measuring system and a position of the machine component measured at the same time by the length-measuring system during the acceleration phase, and the difference is assigned to the acceleration or to a force required for the acceleration and storage in the numerical controller of the pair of values established in this way and/or of a rigidity value emanating from the pair of values.
    Type: Grant
    Filed: November 24, 2016
    Date of Patent: November 19, 2019
    Assignee: Siemens Aktiengesellschaft
    Inventors: David Bitterolf, Gerhard Forster, Elmar Schäfers, Torsten Schür
  • Publication number: 20190018390
    Abstract: A drivetrain for linear movement of a machine component along a linear guide of a machine includes a motor with a motor-measuring system. A length-measuring system is assigned to the linear guide for determining a position of the machine component. To determine rigidity of the drivetrain, a constant acceleration for the machine component is predetermined by a numerical controller for performing closed-loop control of the movement of the machine component. The numerical controller determines a difference between a position of the machine component derived from the motor-measuring system and a position of the machine component measured at the same time by the length-measuring system during the acceleration phase, and the difference is assigned to the acceleration or to a force required for the acceleration and storage in the numerical controller of the pair of values established in this way and/or of a rigidity value emanating from the pair of values.
    Type: Application
    Filed: November 24, 2016
    Publication date: January 17, 2019
    Applicant: Siemens Aktiengesellschaft
    Inventors: DAVID BITTEROLF, GERHARD FORSTER, ELMAR SCHÄFERS, TORSTEN SCHÜR
  • Publication number: 20180209839
    Abstract: In a method for detecting self-excited vibrations of a separating machine tool or of a tool of the separating machine tool or of a workpiece machined by the separating machine tool, detecting while the workpiece is machined by the separating machine tool, a measurement signal representing a physical variable; forming from the measurement signal a reference signal and a filtered filter signal; generating, with an envelope curve demodulator, from the reference signal an envelope curve reference signal and from the filtered filter signal an envelope curve filter signal; comparing the envelope curve reference signal with the envelope curve filter signal and generating at least one first comparison value defined as a ratio of a magnitude of the envelope curve reference signal and a magnitude of the envelope curve filter signal, and detecting the self-excited vibrations based on the first comparison value.
    Type: Application
    Filed: June 16, 2016
    Publication date: July 26, 2018
    Applicant: SIEMENS AKTIENGESELLSCHAFT
    Inventors: DAVID BITTEROLF, JOCHEN BRETSCHNEIDER, PHILIPP SIEGEL
  • Patent number: 10007280
    Abstract: An apparatus for controlling and regulating a movement of a system includes a load calculating device calculating continuously during the movement of the system a respective force vector for each of the individual elements as a function of predetermined reference coordinates and a torque calculating device calculating continuously during the movement at least one compensating variable, wherein the compensating variable compensates the force vectors as a function of the reference coordinates and the force vectors. The apparatus for controlling and regulating has a control unit controlling continuously during the movement a force-producing variable for the at least one drive as a function of the reference and the at least one compensating variable.
    Type: Grant
    Filed: June 9, 2015
    Date of Patent: June 26, 2018
    Assignee: Siemens Aktiengesellschaft
    Inventors: David Bitterolf, Jens Hamann, Carsten Hamm, Sven Tauchmann
  • Publication number: 20150355647
    Abstract: An apparatus for controlling and regulating a movement of a system includes a load calculating device calculating continuously during the movement of the system a respective force vector for each of the individual elements as a function of predetermined reference coordinates and a torque calculating device calculating continuously during the movement at least one compensating variable, wherein the compensating variable compensates the force vectors as a function of the reference coordinates and the force vectors. The apparatus for controlling and regulating has a control unit controlling continuously during the movement a force-producing variable for the at least one drive as a function of the reference and the at least one compensating variable.
    Type: Application
    Filed: June 9, 2015
    Publication date: December 10, 2015
    Applicant: SIEMENS AKTIENGESELLSCHAFT
    Inventors: DAVID BITTEROLF, JENS HAMANN, CARSTEN HAMM, SVEN TAUCHMANN
  • Patent number: 8955789
    Abstract: In a method and a device for winding an acentric coil former, the coil former is set into a rotary motion with a winder drive, wherein the rotary motion of the coil former causes a wire attached to the coil former to be wound onto the coil former and unwound from a drum operatively connected to a brake drive, and the winder drive or the brake drive, or both, are controlled based on a rotation position of the coil former. The wire is unwound from the drum with a non-constant speed.
    Type: Grant
    Filed: February 1, 2012
    Date of Patent: February 17, 2015
    Assignee: Siemens Aktiengesellschaft
    Inventors: David Bitterolf, Elmar Schäfers, Stephan Schäufele
  • Publication number: 20130026278
    Abstract: In a method and a device for winding an acentric coil former, the coil former is set into a rotary motion with a winder drive, wherein the rotary motion of the coil former causes a wire attached to the coil former to be wound onto the coil former and unwound from a drum operatively connected to a brake drive, and the winder drive or the brake drive, or both, are controlled based on a rotation position of the coil former. The wire is unwound from the drum with a non-constant speed.
    Type: Application
    Filed: February 1, 2012
    Publication date: January 31, 2013
    Applicant: Siemens Aktiengesellschaft
    Inventors: David Bitterolf, Elmar Schäfers, Stephan Schäufele