Patents by Inventor Robert Miklosovic
Robert Miklosovic 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).
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Patent number: 11788911Abstract: For estimating motor torque and velocity, a method estimates a velocity profile for a motor based on line-to-line voltages and phase currents for the motor. The velocity profile is estimated without a position input and a velocity input. The method further estimates a torque profile for the motor based on the line-to-line voltages, the phase currents, and a time interval of the velocity profile of motor velocities greater than a velocity threshold, and wherein the motor is operating over the time interval.Type: GrantFiled: January 4, 2023Date of Patent: October 17, 2023Assignee: Rockwell Automation Technologies, Inc.Inventors: Aderiano M. da Silva, Michael Cromheecke, Robert Miklosovic
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Publication number: 20230147922Abstract: For estimating motor torque and velocity, a method estimates a velocity profile for a motor based on line-to-line voltages and phase currents for the motor. The velocity profile is estimated without a position input and a velocity input. The method further estimates a torque profile for the motor based on the line-to-line voltages, the phase currents, and a time interval of the velocity profile of motor velocities greater than a velocity threshold, and wherein the motor is operating over the time interval.Type: ApplicationFiled: January 4, 2023Publication date: May 11, 2023Inventors: Aderiano M. da Silva, Michael Cromheecke, Robert Miklosovic
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Patent number: 11609137Abstract: For estimating motor torque and velocity, a method estimates a velocity profile for a motor based on line-to-line voltages and phase currents for the motor. The velocity profile is estimated without a position input and a velocity input. The method further estimates a torque profile for the motor based on the line-to-line voltages, the phase currents, and a time interval of the velocity profile of motor velocities greater than a velocity threshold, and wherein the motor is operating over the time interval.Type: GrantFiled: March 30, 2020Date of Patent: March 21, 2023Assignee: Rockwell Automation Technologies, Inc.Inventors: Aderiano M. da Silva, Michael Cromheecke, Robert Miklosovic
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Publication number: 20210302251Abstract: For estimating motor torque and velocity, a method estimates a velocity profile for a motor based on line-to-line voltages and phase currents for the motor. The velocity profile is estimated without a position input and a velocity input. The method further estimates a torque profile for the motor based on the line-to-line voltages, the phase currents, and a time interval of the velocity profile of motor velocities greater than a velocity threshold, and wherein the motor is operating over the time interval.Type: ApplicationFiled: March 30, 2020Publication date: September 30, 2021Inventors: Aderiano M. da Silva, Michael Cromheecke, Robert Miklosovic
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Patent number: 9634600Abstract: A motor drive is provided with integrated frequency response analysis tools for generating drive performance metrics that are independent of motion profile and tuning. The metrics are broadly applicable to a wide range of applications, tunings, and load types, and can be used to fairly compare performance across different drives models and assist in drive selection. The frequency analysis tools include a transformation algorithm that reduces or eliminates spectral leakages, a signal generation component that scales the test input signal as a function of frequency avoid saturation based on defined limits of the controlled system, and a phase unwrapping algorithm that correctly unwraps the phase of open-loop and closed-loop response curves. The frequency response analysis tools yield an open-loop response, a closed-loop response, a tracking error response, and a disturbance rejection response, which are used to derive performance metrics for the drive.Type: GrantFiled: July 18, 2014Date of Patent: April 25, 2017Assignee: Rockwell Automation Technologies, Inc.Inventors: Robert Miklosovic, Brian Fast, Aderiano da Silva
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Patent number: 9483038Abstract: A system for generating electronic cam profiles mimicking the action of mechanical cams operates on a variety of different cam profile inputs and converts them into a common form, for example, expressed as a polynomial spline and modifies that common form by predetermined adjustment relationships, for example by scaling coefficients of the common form cam profile according to desired changes in cam function and/or limitations in dynamic cam values input by a user. The common form of the cam profile may be obtained from a table of cam values by spline interpolation of those data values.Type: GrantFiled: April 3, 2014Date of Patent: November 1, 2016Assignee: Rockwell Automation Technologies, Inc.Inventors: Robert Guenther, Joachim Thomsen, Robert Miklosovic, Brian Fast
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Publication number: 20160018466Abstract: A motor drive is provided with integrated frequency response analysis tools for generating drive performance metrics that are independent of motion profile and tuning. The metrics are broadly applicable to a wide range of applications, tunings, and load types, and can be used to fairly compare performance across different drives models and assist in drive selection. The frequency analysis tools include a transformation algorithm that reduces or eliminates spectral leakages, a signal generation component that scales the test input signal as a function of frequency avoid saturation based on defined limits of the controlled system, and a phase unwrapping algorithm that correctly unwraps the phase of open-loop and closed-loop response curves. The frequency response analysis tools yield an open-loop response, a closed-loop response, a tracking error response, and a disturbance rejection response, which are used to derive performance metrics for the drive.Type: ApplicationFiled: July 18, 2014Publication date: January 21, 2016Inventors: Robert Miklosovic, Brian Fast, Aderiano da Silva
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Publication number: 20150286193Abstract: A system for generating electronic cam profiles mimicking the action of mechanical cams operates on a variety of different cam profile inputs and converts them into a common form, for example, expressed as a polynomial spline and modifies that common form by predetermined adjustment relationships, for example by scaling coefficients of the common form cam profile according to desired changes in cam function and/or limitations in dynamic cam values input by a user. The common form of the cam profile may be obtained from a table of cam values by spline interpolation of those data values.Type: ApplicationFiled: April 3, 2014Publication date: October 8, 2015Applicant: ROCKWELL AUTOMATION TECHNOLOGIES, INC.Inventors: Robert Guenther, Joachim Thomsen, Robert Miklosovic, Brian Fast
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Patent number: 8060340Abstract: Controller scaling and parameterization are described. Techniques that can be improved by employing the scaling and parameterization include, but are not limited to, controller design, tuning and optimization. The scaling and parameterization methods described here apply to transfer function based controllers, including PID controllers. The parameterization methods also apply to state feedback and state observer based controllers, as well as linear active disturbance rejection (ADRC) controllers. Parameterization simplifies the use of ADRC. A discrete extended state observer (DESO) and a generalized extended state observer (GESO) are described. They improve the performance of the ESO and therefore ADRC. A tracking control algorithm is also described that improves the performance of the ADRC controller. A general algorithm is described for applying ADRC to multi-input multi-output systems. Several specific applications of the control systems and processes are disclosed.Type: GrantFiled: September 18, 2006Date of Patent: November 15, 2011Assignee: Cleveland State UniversityInventors: Zhiqiang Gao, Robert Miklosovic, Aaron Radke, Wankun Zhou, Qing Zheng
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Publication number: 20090143871Abstract: Controller scaling and parameterization are described. Techniques that can be improved by employing the scaling and parameterization include, but are not limited to, controller design, tuning and optimization. The scaling and parameterization methods described here apply to transfer function based controllers, including PID controllers. The parameterization methods also apply to state feedback and state observer based controllers, as well as linear active disturbance rejection (ADRC) controllers. Parameterization simplifies the use of ADRC. A discrete extended state observer (DESO) and a generalized extended state observer (GESO) are described. They improve the performance of the ESO and therefore ADRC. A tracking control algorithm is also described that improves the performance of the ADRC controller. A general algorithm is described for applying ADRC to multi-input multi-output systems. Several specific applications of the control systems and processes are disclosed.Type: ApplicationFiled: September 18, 2006Publication date: June 4, 2009Applicant: CLEVELAND STATE UNIVERSITYInventors: Zhiqiang Gao, Robert Miklosovic, Aaron Radke, Wankun Zhou, Qing Zheng