Patents by Inventor John Joseph Golownia
John Joseph Golownia 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: 7719219Abstract: An electronic line shaft comprising a motor drive comprising a velocity noise filter coupled to receive a feedback position signal and operable to filter the feedback position signal to generate a feedback velocity signal where the noise filter has at least one controllable filter parameter that affects filter operating characteristics and a processing unit operable to execute a wizard for configuring the motor drive, the wizard being operable to receive mechanical characteristic data associated with the motor drive that is provided as input by a wizard user via a user interface and to determine a noise parameter based on the mechanical characteristic data, wherein the at least one controllable filter parameter is adjusted as a function of the noise parameter.Type: GrantFiled: May 22, 2008Date of Patent: May 18, 2010Assignee: Rockwell Automation Technologies, Inc.Inventors: Kevin L. Baumann, Thomas J. Rehm, Richard W. Piefer, John Joseph Golownia, Jr., John M. Keller, David Christopher Stringfellow, Michael Robert Keller
-
Patent number: 7627440Abstract: A method and apparatus for estimating a system inertia and a load torque in a motor controller, the method comprising the steps of providing an acceleration command signal, determining a motor position, using the motor position to generate an acceleration feedback signal, mathematically combining the acceleration feedback signal and a load torque signal to generate a system inertia estimate, mathematically combining the system inertia estimate and the acceleration command signal to generate a motor torque signal, mathematically combining the system inertia estimate and the acceleration feedback signal to generate an inertia torque and mathematically combining the inertia torque and the motor torque signal to generate the load torque estimate.Type: GrantFiled: August 28, 2007Date of Patent: December 1, 2009Assignee: Rockwell Automation Technologies, Inc.Inventors: Thomas J. Rehm, Peter B. Schmidt, John Joseph Golownia, Jr.
-
Publication number: 20090134829Abstract: An electronic line shaft comprising a motor drive comprising a velocity noise filter coupled to receive a feedback position signal and operable to filter the feedback position signal to generate a feedback velocity signal where the noise filter has at least one controllable filter parameter that affects filter operating characteristics and a processing unit operable to execute a wizard for configuring the motor drive, the wizard being operable to receive mechanical characteristic data associated with the motor drive that is provided as input by a wizard user via a user interface and to determine a noise parameter based on the mechanical characteristic data, wherein the at least one controllable filter parameter is adjusted as a function of the noise parameter.Type: ApplicationFiled: May 22, 2008Publication date: May 28, 2009Inventors: KEVIN L. BAUMANN, THOMAS J. REHM, RICHARD W. PIEFER, JOHN JOSEPH GOLOWNIA, JR., JOHN M. KELLER, DAVID CHRISTOPHER STRINGFELLOW, MICHAEL ROBERT KELLER
-
Patent number: 7531973Abstract: An electronic line shaft includes a motor drive and a processing unit operable to execute a wizard for configuring the motor drive. The wizard is operable to receive mechanical characteristic data associated with the motor drive, determine a noise parameter based on the mechanical characteristic data, and determine at least one control parameter of the motor drive based on the noise parameter.Type: GrantFiled: May 31, 2005Date of Patent: May 12, 2009Assignee: Rockwell Automation Technologies, Inc.Inventors: Kevin L. Baumann, Thomas J. Rehm, Richard W. Piefer, John Joseph Golownia, Jr., John M. Keller, David Christopher Stringfellow, Michael Robert Keller
-
Publication number: 20090063058Abstract: A method and apparatus for estimating a system inertia and a load torque in a motor controller, the method comprising the steps of providing an acceleration command signal, determining a motor position, using the motor position to generate an acceleration feedback signal, mathematically combining the acceleration feedback signal and a load torque signal to generate a system inertia estimate, mathematically combining the system inertia estimate and the acceleration command signal to generate a motor torque signal, mathematically combining the system inertia estimate and the acceleration feedback signal to generate an inertia torque and mathematically combining the inertia torque and the motor torque signal to generate the load torque estimate.Type: ApplicationFiled: August 28, 2007Publication date: March 5, 2009Inventors: Thomas J. Rehm, Peter B. Schmidt, John Joseph Golownia, JR.
-
Patent number: 7183935Abstract: A method for determining motor velocity includes generating an edge signal including a plurality of edges. The edge signal indicates rotational travel of a motor. Edge counts in the edge signal occurring during periodic sample intervals are determined. The edge counts are filtered over a predetermined number of samples. A velocity feedback signal is generated for the motor based on the filtered edge counts. A drive unit for controlling a motor includes an edge detection unit, a position accumulator, and a velocity filter. The edge detection unit is operable to receive a motor position signal and generate an edge signal including a plurality of edges. The edge signal indicates rotational travel of the motor. A position accumulator is operable to determine edge counts in the edge signal occurring during periodic sample intervals. The velocity filter is operable to filter the edge counts over a predetermined number of samples to generate a velocity feedback signal for the motor based on the filtered edge counts.Type: GrantFiled: October 14, 2004Date of Patent: February 27, 2007Assignee: Rockwell Automation Technologies, Inc.Inventors: John Joseph Golownia, Jr., Thomas J. Rehm
-
Patent number: 7141946Abstract: A method and apparatus for use with a motor controller that receives a command velocity and that applies voltages to drive a motor at the command velocity, the apparatus comprising a dual inertia lost motion assembly including a motor and a load couplable to the motor, the lost motion assembly characterized by at least some lost motion between the motor and the load, the motor and load together characterized by a total assembly inertia, an acceleration error determiner for generating an acceleration error that is the difference between a derivative of the command velocity and a motor acceleration value and a low pass acceleration error filter filtering the acceleration error and having a gain set as a percentage of the total assembly inertia, the acceleration error filter providing the filtered signal to the controller, the controller using the filtered signal to adjust the applied voltages.Type: GrantFiled: September 15, 2003Date of Patent: November 28, 2006Assignee: Rockwell Automation Technologies, Inc.Inventors: Thomas J. Rehm, Peter B. Schmidt, John Joseph Golownia
-
Patent number: 7095209Abstract: A method and apparatus for use with a controller for controlling a machine wherein a torque reference value is provided, the method for identifying an error representative of the difference between the torque reference value and the torque applied to the machine and using the error value to modify machine operation.Type: GrantFiled: January 31, 2005Date of Patent: August 22, 2006Assignee: Rockwell Automation Technologies, Inc.Inventors: Jerry Dee Thunes, Thomas J. Rehm, Takayoshi Matsuo, Masahiro Tsuyoshi, John Joseph Golownia, Jr.
-
Patent number: 6577483Abstract: An apparatus for decreasing speed of an inverter driven inertial load within a time period for use with a dynamic brake across a DC link including a controller for controlling the inverter to regulate the power returned to the brake such that, when a brake command is received, the power is increased during a power-up period while motor deceleration begins and up to a constant power level after which the constant power level is maintained by increasing torque such that the dynamic brake is fully used during the majority of a braking cycle and a method to accomplish the same.Type: GrantFiled: September 27, 2000Date of Patent: June 10, 2003Assignee: Rockwell Automation Technologies, Inc.Inventors: John T. Steicher, Gary R. Woltersdorf, Jeffrey M. Theisen, Jerry Dee Thunes, John Joseph Golownia, Jr.